National Power System Expansion Plan
Transcription
National Power System Expansion Plan
National Transmission and Despatch Company Limited National Power System Expansion Plan 2011 - 2030 Final Report Annexure 4: Disco Transmission Expansion Plan 504760-01-A4 2011 Prepared by SNC-Lavalin SNC Lavalin International Inc. Inc in association with National Engineering Services Pakistan (PVT) Limited NOTICE This document contains the expression of the professional opinion of SNC-Lavalin Inc. (“SLI”) as to the matters set out herein, using its professional judgment and reasonable care. It is to be read in the context of the agreement dated October 4, 2010 (the “Agreement”) between SLI and National Transmission and Despatch Company (the “Client”), and the methodology, procedures and techniques used, SLI’s assumptions, and the circumstances and constraints under which its mandate was performed. This document is written solely for the purpose stated in the Agreement, and for the sole and exclusive benefit of the Client, whose remedies are limited to those set out in the Agreement. This document is meant to be read as a whole, and sections or parts thereof should thus not be read or relied upon out of context. Unless expressly stated otherwise, assumptions, data and information supplied by, or gathered from other sources (including the Client, other consultants, testing laboratories and equipment suppliers, etc.) upon which SLI’s opinion as set out herein is based has not been verified by SLI; SLI makes no representation as to its accuracy and disclaims all liability with respect thereto. 504760 © 2011 SNC-Lavalin Inc. All rights reserved Confidential T&D Division National Power Systems Expansion Plan LIST OF ABBREVIATIONS AND DEFINITIONS Abbreviations: ADB Asian Development Bank AEDB Alternative Energy Development Board cct-km Circuit-kilometre Consultant SNC-Lavalin, Transmission and Distribution Group DISCO Distribution Company DSM Demand Side Management GDP Gross Domestic Product GENCO Generation Company HPP Hydel (or Hydro) Power Project HSFO High-Sulphur Furnace Oil HVAC High Voltage Alternating Current HVDC High Voltage Direct Current IEEE Institute of Electrical and Electronic Engineers kA Kilo-ampere KESC Karachi Electric Supply Company km Kilometre KPT Karachi Port Trust kV Kilovolt MMcfd Million cubic feet per day MOU Memorandum of Understanding MT Metric Tonnes MTOE Million Tons of Oil Equivalent MVA Mega volt-amperes MWh Megawatt-hour or 1,000 kilowatt-hours NEPRA National Electric Power Regulatory Authority NESPAK National Engineering Services Pakistan (Pvt) Limited NPP National Power Plan, prepared by Acres International Limited in 1994 NTDC National Transmission and Despatch Company OGDCL Oil and Gas Development Company Limited P.P. Power Project PAEC Pakistan Atomic Energy Commission PARCO Pak-Arab Refining Company PEPCO Pakistan Electric Power Company i National Power Systems Expansion Plan PPIB Private Power and Infrastructure Board PPL Pakistan Petroleum Limited PQA Port Qasim Authority PSO Pakistan State Oil PSS/E Power System Simulation RFO Residual Furnace Oil SIL Surge Impedance Load SNGPL Sui Northern Gas Pipeline Limited SSGCL Sui Southern Gas Company Limited SYPCO Generation planning software (System Production Costing) TAVANIR The Iranian Electric Utility WAPDA Water and Power Development Authority ii National Power System Expansion Plan TABLE OF CONTENTS Disco Transmission Expansion Plan 1 Objectives .................................................................................................................. 1 2 Study Cases............................................................................................................... 2 3 Input Data .................................................................................................................. 2 4 Load Forecast ............................................................................................................ 3 5 Secondary Transmission Planning Criteria ................................................................ 5 6 Methodology .............................................................................................................. 6 7 Load Flow Study Results ........................................................................................... 7 7.1 Year-2015 Study Base Cases ........................................................................... 7 7.1.1 “PESCO & TESCO” Distribution System for Year-2015 .............................. 7 7.1.2 “IESCO” Distribution System for Year-2015 .............................................. 18 7.1.3 “GEPCO” Distribution System for Year-2015 ............................................ 22 7.1.4 “LESCO” Distribution System for Year-2015 ............................................. 25 7.1.5 “FESCO” Distribution System for Year-2015 ............................................. 28 7.1.6 “MEPCO” Distribution System for Year-2015 ............................................ 34 7.1.7 “HESCO & SEPCO” Distribution System for Year-2015 ........................... 42 7.1.8 Year-2016 Study Base Cases ................................................................... 62 7.1.9 “PESCO & TESCO” Distribution System for Year-2016 ............................ 62 7.1.10 “IESCO” Distribution System for Year-2016 .............................................. 67 7.1.11 “GEPCO” Distribution System for Year-2016 ............................................ 70 7.1.12 “LESCO” Distribution System for Year-2016 ............................................. 73 7.1.13 “FESCO” Distribution System for Year-2016 ............................................. 75 7.1.14 “MEPCO” Distribution System for Year-2016 ............................................ 79 7.1.15 “HESCO & SEPCO” Distribution System for Year-2016 ........................... 83 7.1.16 “QESCO” Distribution System for Year-2016 ............................................ 88 504760-01-A4 i Disco Transmission Expansion Plan National Power System Expansion Plan 7.1.17 Year-2018 Study Base Cases ................................................................... 91 7.1.18 “PESCO & TESCO” Distribution System for Year-2018 ............................ 91 7.1.19 “IESCO” Distribution System for Year-2018 ............................................ 100 7.1.20 “GEPCO” Distribution System for Year-2018 .......................................... 103 7.1.21 “LESCO” Distribution System for Year-2018 ........................................... 105 7.1.22 “FESCO” Distribution System for Year-2018 ........................................... 107 7.1.23 “MEPCO” Distribution System for Year-2018 .......................................... 111 7.1.24 “HESCO & SEPCO” Distribution System for Year-2018 ......................... 116 7.1.25 “QESCO” Distribution System for Year-2018 .......................................... 122 7.1.26 Year-2020 Study Base Cases ................................................................. 126 7.1.27 “PESCO & TESCO” Distribution System for Year-2020 .......................... 127 7.1.28 “IESCO” Distribution System for Year-2020 ............................................ 132 7.1.29 “GEPCO” Distribution System for Year-2020 .......................................... 135 7.1.30 “LESCO” Distribution System for Year-2020 ........................................... 138 7.1.31 “FESCO” Distribution System for Year-2020 ........................................... 141 7.1.32 “MEPCO” Distribution System for Year-2020 .......................................... 145 7.1.33 “HESCO & SEPCO” Distribution System for Year-2020 ......................... 150 7.1.34 “QESCO” Distribution System for Year-2020 .......................................... 159 7.2 Short Circuit Study for Year-2020 Base Case ............................................... 164 7.2.1 Assumptions ............................................................................................ 164 7.2.2 Short Circuit Study Results...................................................................... 164 7.2.3 “PESCO & TESCO” Short Circuit Calculations for Year-2020 ................ 165 7.2.4 “IESCO” Short Circuit Calculations for Year-2020 ................................... 166 7.2.5 “GEPCO” Short Circuit Calculations for Year-2020 ................................. 166 7.2.6 “LESCO” Short Circuit Calculations for Year-2020 .................................. 167 7.2.7 “FESCO” Short Circuit Calculations for Year-2020 ................................. 168 7.2.8 “MEPCO” Short Circuit Calculations for Year-2020 ................................. 168 504760-01-A4 ii Disco Transmission Expansion Plan National Power System Expansion Plan 7.2.9 “HESCO” Short Circuit Calculations for Year-2020 ................................. 169 7.2.10 “QESCO” Short Circuit Calculations for Year-2020 ................................. 170 7.3 Cost Estimate ................................................................................................ 170 7.3.1 Unit Cost .................................................................................................. 170 7.3.2 Cost of Reinforcements ........................................................................... 171 7.4 Conclusions ................................................................................................... 173 7.5 Recommendations ........................................................................................ 174 LIST OF TABLES Table 1 Load forecast: Non-Diversified DISCO Totals................................................. 4 Table 2 Load forecast: diversified DISCO totals .......................................................... 4 Table 3 Unit Cost for DISCO Systems Expansion ................................................... 171 Table 4 DISCOs Cost Estimate 2015-2020 in MPKR .............................................. 173 Table 5 DISCOs Cost Estimate 2015-2020 in MUSD .............................................. 173 504760-01-A4 iii Disco Transmission Expansion Plan National Power System Expansion Plan DISCO TRANSMISSION EXPANSION PLAN 1 OBJECTIVES The already proposed distribution system upgrades in each of the DISCOs will be further upgraded in coordination with the development of the National Power System Expansion Plan (NPSEP). The additional reinforcements required at the secondary voltage levels for the years 2015, 2016, 2018 and 2020 were identified for each DISCO. In addition, an estimate of the capital investments required to accept the power as delivered on the high voltage system and to transmit it to the load centres they serve was prepared working closely with teams of counterparts from each DISCO. The objective of the DISCO was to determine the reinforcement required during the planning horizon, to evaluate the performance of the DISCO Secondary Transmission System expansion plans in four study years of 2015, 2016, 2018 and 2020, as well as to prepare an estimate of the investment costs. This was accomplished through the following activities: • A load flow analysis was performed for each DISCO network based on the load forecast at each study year and the local expansion plans using agreed upon planning criteria. The required system reinforcements proposed were selected to alleviate the bus voltage and/or line overloading problems in the most technically and cost effective way. • The short circuit calculations were performed for each DISCO only for the last developed year (Year 2020) to check the value of the fault current at each bus. Any recorded short circuit problems encountered would be solved by reconfiguring the system at these specific locations. The specific tasks of the secondary transmission expansion plan were to: • Expand the 132 kV and 66 kV systems; • Identify the 132/11 kV and 66/11 kV new substations as well as extensions and augmentations for the existing 132/11 kV and 66/11 kV transformers; • Verify that the 132 kV and 66 kV systems satisfy the planning criteria; 504760-01-A4 1 Disco Transmission Expansion Plan National Power System Expansion Plan • Verify that the short circuit levels at the 132 kV and 66 kV systems are within the permissible limits. 2 STUDY CASES In the context of the master plan, the secondary transmission system expansion plan provides the system upgrade required for the spot years 2015, 2016, 2018 and 2020 that will allow the planned generation to serve the forecasted load under both normal and contingency conditions. While short circuit calculations were performed only for the year 2020 peak load case, load flow analysis was performed for the following four peak load study years: • June 2015 peak load case • June 2016 peak load case • June 2018 peak load case • June 2020 peak load case Each case has been analysed under both normal and contingency conditions. System reinforcements including transmission lines and reactive power compensations were defined as appropriate. 3 INPUT DATA The following served as input data for the studies: • Existing 2010 or 2011 system data • Load forecasts, individual grid stations and DISCO peaks (diversified), up to the year 2020 • Planned/committed system expansions of DISCOs up to the year 2015 • Load flow base cases for year 2010 and 2014 provided by NTDC The above data / information were used for building the base cases for the future years of 2015, 2016, 2018 and 2020. 504760-01-A4 2 Disco Transmission Expansion Plan National Power System Expansion Plan 4 LOAD FORECAST For each Distribution Company (DISCO), load forecast for each grid station was developed as summarized in the following steps (more details are presented in the Load Forecast Report): a) Data used is the 11 kV feeder-wise and tariff category-wise sales. It also includes the maximum demand of medium and large industries for the base year. b) These sales are converted into peak demand using the load factors and diversity factors. c) Growth rate on each category is applied and spot load are added. This way the peak demand of the next year at this grid station is forecasted. The summation of these peak values is the non-diversified DISCO peak, as given in Table 1 (e.g. 29,839 MW by Year-2015). A coincidence factor would be applied to each DISCO peak to get the diversified DISCO peak load, as given in Table 2 (e.g. 25,970 MW by Year-2015). The later (diversified DISCO peak) is the value to be used in DISCO transmission planning (66-132 kV network). As can be seen from Tables 1 and 2, the average coincidence factor used for all DISCOs was found to be 88%. A further coincidence factor among the DISCO peaks would be applied to get the “System Peak” which is the value to be used on the transmission level (220 kV and higher). This coincidence factor is in the range of 90-96 %. The full load forecast data for each DISCO is given in Appendix-1. The load data presented were obtained from the “Load Forecasting Group” of the “NTDC Planning Department”. 504760-01-A4 3 Disco Transmission Expansion Plan National Power System Expansion Plan Table 1 Load forecast: Non-Diversified DISCO Totals DISCO Total Load (MW) No. Name 2015 2016 2018 2020 CF* 1 PESCO 3516 3658 3943 4203 88% 2 IESCO 3407 3710 4405 5037 85% 3 GEPCO 2787 2944 3284 3657 90% 4 LESCO 5965 6290 7003 7755 84% 5 FESCO 3985 4233 4818 5583 83% 6 MEPCO 4233 4438 4868 5387 91% 7 HESCO 3083 3282 3722 4261 85% 8 QESCO 1767 1857 2054 2284 98% 10 TESCO 1097 1169 1322 1450 88% Total 29839 31580 35419 39617 *CF: Coincidence Factor Table 2 Load forecast: diversified DISCO totals DISCO Total Load (MW) No. Name 1 PESCO 3091 3211 3452 3674 2 IESCO 2891 3148 3738 4273 3 GEPCO 2500 2641 2945 3279 4 LESCO 5027 5302 5905 6538 5 FESCO 3289 3493 3974 4604 6 MEPCO 3860 4045 4432 4902 7 HESCO 2607 2773 3143 3596 8 QESCO 1738 1827 2020 2246 10 TESCO 968 1031 1166 1278 25970 27471 30773 34391 Total 504760-01-A4 2015 2016 4 2018 2020 Disco Transmission Expansion Plan National Power System Expansion Plan 5 SECONDARY TRANSMISSION PLANNING CRITERIA The planning of the Secondary Transmission System considers the operation of a power system under two possible situations, that is: Normal operating conditions (N-0): the Secondary Transmission System (66-132 kV) infrastructure is entirely available (no equipment has been considered out of service). Contingency operating conditions (N-1): one of the Secondary Transmission System equipment (line or transformer) is out of service. In this study, only outage of transmission lines rated at 132 kV (or 66 kV) within each DISCO was considered. For each of these operating conditions, the following criteria were applied to the analyses; System Voltage Criteria The acceptable voltage range for operating the system based on factors such as equipment limitations under normal and contingency conditions is as follows: Condition Acceptable Voltage Range Normal System Conditions 95% - 105% (±5%) Contingency Conditions 90% - 110% (±10%) It is important to note that from an operational standpoint, healthy systems usually target a voltage close to 1.0 pu at 132 kV (or 66 kV) voltage levels. Equipment Thermal Loading Criteria The Secondary Transmission System shall be planned to allow all transmission lines and equipment to operate within the following limits for the following defined conditions: Condition Thermal Loading Limit Normal System Conditions Defined Normal Load Capacity System Design Contingencies of Long Duration (i.e. an outage involving the failure of a transformer) Defined Normal Load Capacity System Design Contingencies of Short Duration (i.e. not involving a transformer) Defined Emergency Load Capacity (120% of normal rating for 10 hours per year) However; as per discussion with the NTDC Planning Engineers, the line loading under contingency conditions (N-1 analysis) will be based on the normal rating (Rating A). 504760-01-A4 5 Disco Transmission Expansion Plan National Power System Expansion Plan 6 METHODOLOGY The methodology followed to accomplish the objectives of this project is summarized in the following steps; 1. The load flow case representing the current system (either 2010 or 2011) has been modified to include the 11 kV network. Each 132 kV or 66 kV bus was expanded to model the 132/11 kV or 66/11 kV transformers. Loads have then been placed at the 11 kV side along with the shunt capacitor banks, if any. The actual measured values of bus voltages, power factors, active and reactive power 9energy), and loadings on lines and transformers were matched with the simulated solutions to determine the actual power factors of loads at different substations. These calibrated power factors were used for modelling of loads (MW/MVAR) while developing the simulation cases of each spot year. 2. For building the Year-2015 case, each DISCO network in the starting base case of Year-2014 was replaced by the detailed model developed at step-1. 3. Loads were updated based on the load forecast values for Year-2015, including the addition of the new grid stations as appropriate and the established load power factor. All the`` sub-projects planned under ADB Tr-I, Tr-2 and PSDP or 6th STG would be a part of the interconnected network in the Year-2015 base case. 4. The generation schedule on the transmission level (220 kV and higher) would be increased (if necessary) to match the load level. By completing this step, each DISCO would have an updated load flow case for Year-2015. 5. For each updated Year-2015 DISCO case, the 132 and 66 kV systems were analysed under both normal (N-0) and contingency (N-1) conditions. As a result of this analysis, system reinforcements were added as necessary. Then the new Year-2015 case with reinforcements was re-analysed under (N-0) and (N-1) conditions to make sure that the system satisfy the planning criteria. 6. The DISCO base cases for Year-2016 were built starting from the Year-2015 cases. Then steps 3-5 described above were followed. The process continues for building the other two cases for years 2018 and 2020. 504760-01-A4 6 Disco Transmission Expansion Plan National Power System Expansion Plan 7. Short circuit calculations were performed only for the last study year; by combining all DISCO cases in one composite simulation case for year 2020. Maximum short circuit currents were calculated using IEC 909 standards. 8. State of art software PSS/E of Siemens-PTI was used for all simulation analysis of load flow and short circuit analysis. 7 LOAD FLOW STUDY RESULTS The results for each DISCO are provided in Appendices 1-5 which shows the reinforcements required for each of the years. The base case for each DISCO was developed using the existing 2010 or 2011 system data, the starting NTDC base case for 2014, the load forecast (2015-2020), and planned/ committed system expansions of DISCOs up to 2015. The load flow results are given for each DISCO independently in three main activities: • Analysing the developed case under both normal (N-0) and contingency (N-1) conditions; • Identifying system reinforcements as appropriate; and • Re-checking the system under (N-0) and (N-1) with system reinforcements. 7.1 Year-2015 Study Base Cases The load flow results are given for each DISCO independently in three main activities. a) Analysing the developed case under both normal (N-0) and contingency (N-1) conditions. b) Identifying system reinforcements as appropriate. c) Re-checking the system under (N-0) and (N-1) with system reinforcements. 7.1.1 “PESCO & TESCO” Distribution System for Year-2015 The Year-2015 base case was studied based on the planning criteria described in Section 12.5. The total loads of PESCO and TESCO by Year-2015 are 3,091 MW and 968 MW, respectively (combined: 4,059 MW). The load flow load flow single line 504760-01-A4 7 Disco Transmission Expansion Plan National Power System Expansion Plan diagrams of the full PESCO and TESCO systems are shown in Appendix-2 (spread over 7 Sheets) along with the system additions from Year-2010 to Year-2015. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], many low voltage problems were recorded within the PESCO and TESCO systems as given below. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA 1080 SWABI 132.00 1 0.9095 120.06 1128 DIR 132.00 1 0.9129 120.50 1142 K.KHELA 132.00 1 0.9355 123.48 1144 MADYAN 132.00 1 0.9287 122.59 1146 SHANGLAP 132.00 1 0.9292 122.66 1250 LANDIKOT 132.00 10 0.9118 120.35 1255 KHYBER AGENC132.00 10 0.9234 121.89 1260 PESHCANT 132.00 1 0.9251 122.11 1302 GURGURI 132.00 1 0.7751 102.32 1303 HANGU 66.000 1 0.6905 45.573 1309 GHILJO 66.000 10 0.6417 42.352 1312 HANGU 132.00 1 0.9401 124.09 1315 TALL 132.00 1 0.6047 79.822 1316 TALL 66.000 1 0.6241 41.187 1317 KORAIZ 132.00 10 0.9404 124.14 1336 SABIR ABAD 132.00 1 0.9436 124.56 1338 SIRAJ BABA 132.00 1 0.9484 125.19 1340 BANNU 132.00 1 0.9423 124.39 1342 BANNU-II 132.00 1 0.8926 117.82 1344 T-MIRALI 132.00 1 0.7756 102.38 1345 S.NURANG 132.00 1 0.9435 124.54 1346 MIR ALI 132.00 10 0.7530 99.396 1350 MIRANSHA 132.00 10 0.7059 93.183 1351 DATAKHEL 132.00 10 0.6796 89.704 1352 GHALANAI 132.00 10 0.9350 123.41 1355 RAZMAK 132.00 10 0.6835 90.224 1360 ABBOTABD 132.00 1 0.9461 124.89 1370 AYUB M.C 132.00 1 0.9468 124.98 1375 NATIAGLI 132.00 1 0.9348 123.39 1380 MANSEHRA 132.00 1 0.9470 125.00 1385 OGHI 132.00 1 0.9021 119.07 1390 BATAL 132.00 1 0.8669 114.43 1394 THAKOT 132.00 1 0.8527 112.56 1400 BALAKOT 132.00 1 0.8883 117.26 1418 T-HATTAR 132.00 1 0.9375 123.75 1420 HATTAR 132.00 1 0.9170 121.04 1421 BEST-W-C 132.00 1 0.9135 120.58 1422 SADI-C-F 132.00 1 0.9144 120.70 1440 TARBELA-R 132.00 1 0.9152 120.81 1442 GHAZI-IS 132.00 1 0.9337 123.25 1445 G.AMAZAI 132.00 1 0.9089 119.98 1450 TARBELA-N 132.00 1 0.9285 122.56 1455 NAUSERY 132.00 1 0.8362 110.37 1460 TANK 132.00 1 0.8160 107.71 1461 GOMAL-ZM 132.00 1 0.8036 106.07 1465 WANA 132.00 10 0.7690 101.51 1520 SHABQDAR 66.000 1 0.8812 58.160 1530 GHALANI 66.000 10 0.7525 49.664 1531 LAKARAI 66.000 10 0.5089 33.589 1601 T-SSPS 66.000 1 0.8775 57.912 1602 WARSAK-D 66.000 1 0.8612 56.838 1605 SSPS 66.000 10 0.8762 57.831 1670 TIMRGARH 66.000 1 0.8093 53.416 1675 WARAI 66.000 1 0.6961 45.940 1686 KHAR BAJAWAR132.00 10 0.9365 123.62 1690 DIR 66.000 1 0.6499 42.891 1700 KOHAT 66.000 1 0.9043 59.682 1710 KOHAT-O 66.000 1 0.9043 59.684 1720 KALAYA 66.000 10 0.5353 35.328 1730 T-KALAYA 66.000 1 0.7569 49.953 504760-01-A4 8 Disco Transmission Expansion Plan National Power System Expansion Plan 1750 ALIZAI 66.000 10 0.4852 32.023 1755 SADDA 132.00 10 0.4673 61.678 1760 SADDA 66.000 10 0.4140 27.327 1770 PARANCHINAR 66.000 10 0.3407 22.485 1775 PARACINA 132.00 10 0.3984 52.595 1780 BANNU 66.000 1790 KRM.GRHI 66.000 1 0.8953 59.088 1830 PEZU 132.00 1 0.9373 123.73 1840 TANK-1 66.000 1 0.8108 53.513 1850 JANDOLA 66.000 10 0.7612 50.236 1865 SARAROGA 66.000 1 0.7613 50.246 1870 KULACHI 66.000 1 0.6429 42.428 1872 T-KULCHI 66.000 1 0.6643 43.845 1880 DARABAN 66.000 1 0.6034 39.823 1890 BUNDKURI 66.000 1 0.6257 41.295 1900 ABBOTABD 66.000 1 0.6853 45.228 1920 T-HAVLAN 66.000 1 0.7415 48.936 1930 HARIPUR 66.000 1 0.8308 54.832 2015 MUZAFBAD 132.00 1 0.8278 109.27 2018 JAGRAN 132.00 1 0.8500 112.20 5015 TAJAZAI 132.00 1 0.9397 124.04 7985 D.I.KHAN 66.000 1 0.7872 51.954 1 0.9328 61.562 -------------------------------------------------------------------------------- Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A PESCO X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA 130 BANNU 220.00* 15 1080 SWABI 132.00* 1 1080 SWABI 132.00* 1080 SWABI BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 132.00 1 1 533.8 480.0 111.2 10801 T1 11.000 1 1 29.7 26.0 114.3 1 10802 T2 11.000 1 1 29.2 26.0 112.4 132.00* 1 10803 T3 11.000 1 1 28.6 26.0 110.0 1090 CHARSADA 132.00* 1 10903 T3 11.000 1 1 26.2 26.0 100.9 1095 RAJJAR 132.00* 1 10951 T1 11.000 1 1 13.4 13.0 102.9 1115 SHABQDAR 132.00* 1 66.000 1 2 46.4 40.0 115.9 1118 JALALA 132.00* 1 11183 T5 11.000 1 1 26.9 26.0 103.5 1128 DIR 132.00* 1 11281 T1 11.000 1 1 22.3 13.0 171.2 1130 CHAKDARA 132.00* 1 66.000 1 1 38.4 37.5 102.5 1146 SHANGLAP 132.00* 1 11461 T1 11.000 1 1 10.5 7.6 137.6 1196 PESHFORT 132.00* 1 11961 T1 11.000 1 1 43.3 40.0 108.3 1196 PESHFORT 132.00* 1 11962 T2 11.000 1 1 42.5 40.0 106.2 1240 JAMRUD-I 132.00 1 132.00* 1 1 135.3 112.0 120.8 1257 R-BABA 132.00* 1 12572 T2 11.000 1 1 13.6 13.0 104.7 1257 R-BABA 132.00* 1 12573 T3 11.000 1 1 27.5 26.0 105.7 1260 PESHCANT 132.00* 1 12603 T3 11.000 1 1 26.2 26.0 100.9 1260 PESHCANT 132.00* 1 12604 T4 11.000 1 1 26.4 26.0 101.6 1270 PESH UNI 132.00* 1 12703 T3 11.000 1 1 26.4 26.0 101.4 1280 PESH.IND 132.00* 1 12801 T1 11.000 1 1 43.6 40.0 109.0 1290 SHMUHDI-2 132.00* 1 1293 BADABER 132.00 1 2 16.3 12.0 135.8 1300 KOHAT 132.00 1 1302 GURGURI 132.00* 1 1 118.1 112.0 105.4 1300 KOHAT 132.00* 1 1700 KOHAT 66.000 1 1 61.6 40.0 154.0 1302 GURGURI 132.00 1 1315 TALL 132.00* 1 1 229.9 112.0 205.3 1302 GURGURI 132.00* 1 1332 BANNU-N 132.00 1 1 115.0 112.0 102.7 1315 TALL 132.00 1 1755 SADDA 132.00* 10 1 145.2 112.0 129.6 504760-01-A4 1332 BANNU-N 1520 SHABQDAR 1650 CHAKDARA 1270 PESH UNI 9 Disco Transmission Expansion Plan National Power System Expansion Plan 1315 TALL 132.00* 1 13151 T2 11.000 1 1 29.8 26.0 114.8 1315 TALL 132.00* 1 13152 T3 11.000 1 1 14.4 13.0 110.9 1320 LACHI 132.00* 1 13201 T1 11.000 1 1 16.0 13.0 122.9 1320 LACHI 132.00* 1 13202 T2 11.000 1 1 17.5 13.0 134.7 1332 BANNU-N 132.00 1 1340 BANNU 132.00* 1 1 112.8 112.0 100.7 1332 BANNU-N 132.00 1 1340 BANNU 132.00* 1 2 112.8 112.0 100.7 1336 SABIR ABAD 132.00* 1 11.000 1 1 13.0 13.0 100.3 1340 BANNU 132.00 1 1342 BANNU-II 132.00* 1 1 183.1 112.0 163.5 1342 BANNU-II 132.00 1 1344 T-MIRALI 132.00* 1 1 192.6 112.0 172.0 1345 S.NURANG 132.00* 1 13451 T1 11.000 1 1 13.4 13.0 102.9 1345 S.NURANG 132.00* 1 13452 T2 11.000 1 1 31.5 26.0 121.2 1360 ABBOTABD 132.00* 1 13601 T1 11.000 1 1 28.6 26.0 110.2 1360 ABBOTABD 132.00* 1 13602 T2 11.000 1 1 13.8 13.0 105.9 1360 ABBOTABD 132.00* 1 13603 T3 11.000 1 1 30.3 26.0 116.6 1370 AYUB M.C 132.00* 1 13701 T1 11.000 1 1 28.8 26.0 110.8 1375 NATIAGLI 132.00* 1 13751 T1 11.000 1 1 23.0 13.0 176.8 1380 MANSEHRA 132.00* 1 13803 T3 11.000 1 1 28.5 26.0 109.7 1400 BALAKOT 132.00* 1 14001 T1 11.000 1 1 15.7 13.0 120.7 1410 HARIPUR 132.00* 1 14103 T3 11.000 1 1 27.7 26.0 106.5 1418 T-HATTAR 132.00 1 1420 HATTAR 132.00* 1 1 206.9 112.0 184.7 1418 T-HATTAR 132.00* 1 2060 WAH NEW 132.00 2 1 206.8 112.0 184.6 1420 HATTAR 132.00* 1 14201 T1 11.000 1 1 31.4 26.0 120.6 1420 HATTAR 132.00* 1 14202 T2 11.000 1 1 47.4 40.0 118.4 1420 HATTAR 132.00* 1 14203 T3 11.000 1 1 29.9 26.0 114.9 1420 HATTAR 132.00* 1 14204 T4 11.000 1 1 29.9 26.0 115.0 1445 G.AMAZAI 132.00* 1 14451 T1 11.000 1 1 27.3 26.0 105.0 1445 G.AMAZAI 132.00* 1 14453 T3 11.000 1 1 13.7 13.0 105.7 1445 G.AMAZAI 132.00* 1 14454 T4 11.000 1 1 27.4 26.0 105.4 1460 TANK 132.00* 1 14601 T4 11.000 1 1 17.4 13.0 134.2 1460 TANK 132.00* 1 14602 T6 11.000 1 1 39.6 26.0 152.5 1520 SHABQDAR 66.000 1 66.000* 10 1 48.2 39.0 123.7 1675 WARAI 66.000* 1 11.000 1 1 13.9 13.0 106.7 1690 DIR 66.000* 1 1691 DIR 33.000 1 1 8.4 6.3 134.1 1700 KOHAT 66.000 1 1730 T-KALAYA 66.000* 1 1 59.4 39.0 152.2 1890 BUNDKURI 66.000* 1 7985 D.I.KHAN 66.000 1 1 44.1 39.0 113.2 1890 BUNDKURI 66.000* 1 18901 T1 11.000 1 1 10.1 7.5 134.6 1890 BUNDKURI 66.000* 1 18902 T2 11.000 1 1 17.5 13.0 134.9 1900 ABBOTABD 66.000* 1 19001 T1 11.000 1 1 17.7 13.0 136.0 2015 MUZAFBAD 132.00 1 33.000* 1 1 10.3 10.0 102.6 2015 MUZAFBAD 132.00* 1 20151 T1 11.000 1 1 13.8 10.0 137.9 2015 MUZAFBAD 132.00* 1 20152 T2 11.000 1 1 38.9 26.0 149.5 2015 MUZAFBAD 132.00* 1 20153 T4 11.000 1 1 39.5 26.0 152.0 7430 D.I.KHAN 132.00* 1 66.000 1 1 73.7 40.0 184.3 13361 T1 1530 GHALANI 16751 T1 2016 MUZFRABD 7985 D.I.KHAN TESCO X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 1250 LANDIKOT 132.00* 10 12501 T1 11.000 10 1 35.8 26.0 137.6 1250 LANDIKOT 132.00* 10 12502 T2 11.000 10 1 35.8 26.0 137.6 1255 KHYBER AGENC132.00* 10 12551 T1 11.000 10 1 28.5 26.0 109.5 1255 KHYBER AGENC132.00* 10 12552 T2 11.000 10 1 14.3 13.0 109.9 1275 BARA 132.00* 10 12751 T1 11.000 10 1 26.1 26.0 100.3 1275 BARA 132.00* 10 12753 T3 11.000 10 1 26.1 26.0 100.3 1315 TALL 132.00 1 132.00* 10 1 145.2 112.0 129.6 504760-01-A4 1755 SADDA 10 Disco Transmission Expansion Plan National Power System Expansion Plan 1346 MIR ALI 132.00* 10 13461 T1 11.000 10 1 21.2 13.0 162.9 1346 MIR ALI 132.00* 10 13462 T2 11.000 10 1 8.5 6.3 135.2 1346 MIR ALI 132.00* 10 13463 T3 11.000 10 1 42.7 26.0 164.2 1350 MIRANSHA 132.00* 10 13504 T3 11.000 10 1 23.7 13.0 182.4 1520 SHABQDAR 66.000 1 1530 GHALANI 66.000* 10 1 48.2 39.0 123.7 1530 GHALANI 66.000 10 1531 LAKARAI 66.000* 10 1 48.5 39.0 124.2 1720 KALAYA 66.000* 10 11.000 10 1 6.3 6.3 100.1 17202 T2 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), many system reinforcements were added as system expansions and to resolve the (N-0) violations, as follows. PESCO Reinforcements Augmentations/Shifting: 1. 10/13 MVA by 20/26 MVA at 132 kV GSS Rajjar. 2. 7.6 MVA by 10/13 MVA at 132 kV GSS Shangla 3. 10/13 by 20/26 MVA at 132 kV GSS Tall. 4. 10/13 MVA by 20/26 MVA at 132 kV GS Lachi. 5. 10/13 by 20/26 MVA 132 kV GS Sare Naurang. 6. 10/13 by 20/26 MVA at 132 kV GS Tank. 7. 10/13 by 20/26 MVA at 132 kV Nathhi Gali. 8. 10/13 by 20/26MVA at 132 kV Abbotabad. 9. 10/13 by 20/26 MVA at 132 kV Gadoon. 10. 7.5 by 10/13 MVA at 66 kV Bandkuri. 11. 10/13 by 20/26 MVA at 132 kV DIR. 12. 33/11 kV Transformer of 4 MVA capacity at Jutilasht. 13. Shifting of 40 MVA 132/66 kV T/F from 132 kV Chakdara to 132 kV Timergara. Extension: 1. 132 kV GS AMC 10/13 MVA. 504760-01-A4 11 Disco Transmission Expansion Plan National Power System Expansion Plan 132 kV Capacitors: 1. 7.2 MVAR at 132 kV Tall 11 kV Capacitors: 1. 7.2 MVAR at T-3, 132 kV Charsadda. 2. 7.2 MVAR at T-5, 132 kV Jalala. 3. 6.2 MVAR at T-1, 132 kV K.Kela. 4. 4.8 MVAR at T-1,132 kV Shangla. 5. 3.6 MVAR at T-1 and additional 1.2 MVAR at T-2, 66 kV Timergera. 6. 7.2 MVAR EACH at T-1 and T-2, 132 kV Tall. 7. 7.2 MVAR at T-1 and additional 2.4 MVAR at T-2, 132 kV Tank. 8. 7.2 MVAR each at T-1 and T-4, 132 kV Peshawar Cantt. 9. 7.2 MVAR at T-1, 132 kV Peshawar Industries. 10. 4.8 MVAR at T-2 and 7.2 MVAR at T-3, 132 kV Rehman Baba. 11. 10 MVAR and additional 4.8 MVAR, 132 kV Muzaffarabad. 12. 7.2 MVAR at T-3, 132 kV Mansehra. 13. 4.8 MVAR at T-1, 132 kV Balakot. 14. ADD 2.4 MVAR at T-1 and T-2 EACH, 66 kV Warsak. 15. 4.8 MVAR and 3 MVAR, 132 kV Bandkore. 16. 4.8 MVAR, 132 kV Daraban. 17. Add 2.4 MVAR at 132 kV Hussai, T-1 18. 10 MVAR at 132 kV Swabi, T-1 (40 MVA) 504760-01-A4 12 Disco Transmission Expansion Plan National Power System Expansion Plan Proposed Substation: 1. 132 kV substation Hattar-II with 2 Nos. of 20/26 MVA Transformers and 18KM line with Lynx conductor. New Lines: 1. SDT line from 132 kV Hattar-132 kV Hattar-II with Lynx. 2. SDT line from 132 kV Bannu-132 kV Bannu-II with Lynx. 3. SDT line 132 kV Hangu-132 kV Tall with Lynx. 4. SDT line from 132 kV Mardan-II to 132 kV Hussai with Lynx 12 km. TESCO Reinforcements Augmentations: 1. 10/13 by 20/26 MVA at 132 kV GS Sadda. 2. 6.3 by 20/26 MVA at 132 kV Mir Ali. 3. 10/13 by 20/26 MVA of T-1 and T-3 each at 132 kV Miran Shah. 4. 6.3 by 10/13 MVA at 132 kV Kalaya. 5. 10/13 by 20/26 MVA at 132 kV GS KHYBER AGENCY. Conversion of 66kV into 132kV Grids: 1. 132 kV Kalaya with 2 Nos. 10/13 MVA transformers. 2. 132 kV Lakarai with 2 Nos. 20/26 MVA transformers. New Lines: 1. Single circuit with SDT towers from Bannu-II- Miran Shah with Lynx conductor of 74 km. 132 kV Capacitors: 1. 48 MVAR at 132 kV SADDA. 504760-01-A4 13 Disco Transmission Expansion Plan National Power System Expansion Plan 11kV Capacitors: 1. 7.2 MVAR at T-1 and T-2, 132 kV Sadda. 2. 2 MVAR at T-1 and T-2 each and add 1.2MVAR at T-3, 132 kV Parachinar 7. 3. 4.8 MVAR at T-2 and 7.2MVAR at T-3 and add 1.2 MVAR at T-1, 132kV Miran Shah. 4. 4.8 MVAR at T-1, 132 kV Razmak. 5. 7.2 MVAR at T-1 and T-2 at 132 kV Wana 6. 4.8 MVAR at T-1 and T-2 EACH, 132 kV Kalaya. 7. 7.2 MVAR at T-1 and T-2 EACH, 132 kV Khyber Agency. 8. 7.2 MVAR at T-1 and T-2 EACH, 132 kV Ghallani. With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: Three severe line outages would lead to area collapse were recorded. -------------------------------------------------------------------------------- CONTINGENCY LEGEND: LABEL EVENTS SINGLE 122 : OPEN LINE FROM BUS 1302 [GURGURI 132.00] TO BUS 1315 [TALL 132.00] CKT 1 SINGLE 167 : OPEN LINE FROM BUS 1380 [MANSEHRA 132.00] TO BUS 1400 [BALAKOT 132.00] CKT 1 SINGLE 170 : OPEN LINE FROM BUS 1400 [BALAKOT 132.00] TO BUS 2015 [MUZAFBAD 132.00] CKT 1 -------------------------------------------------------------------------------- Out-of-Limits Bus Voltages: Many voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 40 <-------- B U S --------> 1128 DIR 132.00 0.89442 0.95337 1.10000 0.90000 SINGLE 40 1686 KHAR BAJAWAR132.00 0.89769 0.95443 1.10000 0.90000 SINGLE 41 1128 DIR 0.89431 0.95337 1.10000 0.90000 504760-01-A4 132.00 14 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 41 1686 KHAR BAJAWAR132.00 0.89758 0.95443 1.10000 0.90000 SINGLE 45 1140 SWAT 132.00 0.88139 0.97589 1.10000 0.90000 SINGLE 45 1142 K.KHELA 132.00 0.86267 0.96113 1.10000 0.90000 SINGLE 45 1144 MADYAN 132.00 0.85524 0.95464 1.10000 0.90000 SINGLE 45 1146 SHANGLAP 132.00 0.85904 0.95871 1.10000 0.90000 SINGLE 98 1460 TANK 132.00 0.86468 0.97107 1.10000 0.90000 SINGLE 98 1461 GOMAL-ZM 132.00 0.86207 0.97203 1.10000 0.90000 SINGLE 98 1465 WANA 132.00 0.83873 0.95417 1.10000 0.90000 SINGLE 98 1840 TANK-1 66.000 0.88557 0.99934 1.10000 0.90000 SINGLE 98 1850 JANDOLA 66.000 0.84417 0.96779 1.10000 0.90000 SINGLE 98 1865 SARAROGA 66.000 0.84433 0.96797 1.10000 0.90000 SINGLE 98 1870 KULACHI 66.000 0.85977 0.96654 1.10000 0.90000 SINGLE 98 1872 T-KULCHI 66.000 0.87547 0.97982 1.10000 0.90000 SINGLE 98 1880 DARABAN 66.000 0.83811 0.95221 1.10000 0.90000 SINGLE 98 1890 BUNDKURI 66.000 0.85620 0.96618 1.10000 0.90000 SINGLE 99 1460 TANK 132.00 0.86468 0.97107 1.10000 0.90000 SINGLE 99 1461 GOMAL-ZM 132.00 0.86207 0.97203 1.10000 0.90000 SINGLE 99 1465 WANA 132.00 0.83873 0.95417 1.10000 0.90000 SINGLE 99 1840 TANK-1 66.000 0.88557 0.99934 1.10000 0.90000 SINGLE 99 1850 JANDOLA 66.000 0.84417 0.96779 1.10000 0.90000 SINGLE 99 1865 SARAROGA 66.000 0.84433 0.96797 1.10000 0.90000 SINGLE 99 1870 KULACHI 66.000 0.85977 0.96654 1.10000 0.90000 SINGLE 99 1872 T-KULCHI 66.000 0.87547 0.97982 1.10000 0.90000 SINGLE 99 1880 DARABAN 66.000 0.83811 0.95221 1.10000 0.90000 SINGLE 99 1890 BUNDKURI 66.000 0.85620 0.96618 1.10000 0.90000 SINGLE 115 1775 PARACINA 132.00 0.89420 0.95018 1.10000 0.90000 SINGLE 123 1775 PARACINA 132.00 0.88455 0.95018 1.10000 0.90000 SINGLE 133 1303 HANGU 66.000 0.89211 0.99830 1.10000 0.90000 SINGLE 133 1309 GHILJO 66.000 0.85556 0.98445 1.10000 0.90000 SINGLE 133 1316 TALL 66.000 0.84227 0.98985 1.10000 0.90000 SINGLE 133 1750 ALIZAI 66.000 0.79782 0.95504 1.10000 0.90000 SINGLE 137 1336 SABIR ABAD 132.00 0.89997 1.01389 1.10000 0.90000 SINGLE 147 1344 T-MIRALI 132.00 0.56227 0.99852 1.10000 0.90000 SINGLE 147 1346 MIR ALI 132.00 0.54280 0.99098 1.10000 0.90000 SINGLE 147 1350 MIRANSHA 132.00 0.62317 0.98560 1.10000 0.90000 SINGLE 147 1351 DATAKHEL 132.00 0.59341 0.96883 1.10000 0.90000 SINGLE 147 1355 RAZMAK 132.00 0.60191 0.97954 1.10000 0.90000 SINGLE 147 1775 PARACINA 132.00 0.88002 0.95018 1.10000 0.90000 SINGLE 147 1790 KRM.GRHI 66.000 0.88900 1.01018 1.10000 0.90000 SINGLE 148 1350 MIRANSHA 132.00 0.89025 0.98560 1.10000 0.90000 SINGLE 148 1351 DATAKHEL 132.00 0.87111 0.96883 1.10000 0.90000 SINGLE 148 1355 RAZMAK 132.00 0.88116 0.97954 1.10000 0.90000 SINGLE 187 1465 WANA 132.00 0.89883 0.95417 1.10000 0.90000 SINGLE 190 1465 WANA 132.00 0.86403 0.95417 1.10000 0.90000 SINGLE 217 1870 KULACHI 66.000 0.89869 0.96654 1.10000 0.90000 SINGLE 217 1880 DARABAN 66.000 0.87999 0.95221 1.10000 0.90000 SINGLE 217 1890 BUNDKURI 66.000 0.89646 0.96618 1.10000 0.90000 SINGLE 218 1870 KULACHI 66.000 0.88360 0.96654 1.10000 0.90000 SINGLE 218 1872 T-KULCHI 66.000 0.89869 0.97982 1.10000 0.90000 SINGLE 218 1880 DARABAN 66.000 0.86380 0.95221 1.10000 0.90000 SINGLE 218 1890 BUNDKURI 66.000 0.88089 0.96618 1.10000 0.90000 -------------------------------------------------------------------------------Due to the volume of the output, contingency list was omitted. 504760-01-A4 15 Disco Transmission Expansion Plan National Power System Expansion Plan Line/Transformer Overloads: Many line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 1070 MARDAN 132.00 1074*MARDANII 132.00 1 SINGLE 1 112.0 163.5 145.2 % 1072*HUSSAI 132.00 1074 MARDANII 132.00 1 SINGLE 1 112.0 112.7 102.9 1070 MARDAN 132.00 1074*MARDANII 132.00 1 SINGLE 2 112.0 124.5 110.3 1069*DOBIAN 132.00 1070 MARDAN 132.00 1 SINGLE 4 112.0 148.1 134.3 1069*DOBIAN 132.00 1070 MARDAN 132.00 1 SINGLE 12 112.0 126.1 113.9 1115*SHABQDAR 132.00 1189 SHAIBG-N 132.00 2 SINGLE 28 112.0 132.8 120.8 1115*SHABQDAR 132.00 1189 SHAIBG-N 132.00 1 SINGLE 29 112.0 132.8 120.8 1125*TIMERGARA 132.00 1130 CHAKDARA 132.00 3 SINGLE 40 112.0 128.2 124.5 1125*TIMERGARA 132.00 1130 CHAKDARA 132.00 2 SINGLE 41 112.0 128.2 124.6 1130 CHAKDARA 132.00 1135*BARIKOT 132.00 1 SINGLE 45 112.0 140.7 137.4 1135 BARIKOT 132.00 1140*SWAT 132.00 1 SINGLE 45 112.0 124.6 126.2 1189 SHAIBG-N 132.00 1191*SHAHI SP 132.00 2 SINGLE 71 112.0 117.1 102.1 1189 SHAIBG-N 132.00 1191*SHAHI SP 132.00 1 SINGLE 72 112.0 117.1 102.1 1240 JAMRUD-I 132.00 1270*PESH UNI 132.00 2 SINGLE 92 112.0 128.5 113.1 1240 JAMRUD-I 132.00 1270*PESH UNI 132.00 1 SINGLE 93 112.0 128.5 113.1 1291 SHMUHDI-1 132.00 1294*MATANI 132.00 3 SINGLE 97 112.0 114.7 100.2 1261 DI.KHN-N 132.00 7430*D.I.KHAN 132.00 2 SINGLE 98 112.0 180.4 171.1 1261 DI.KHN-N 132.00 7430*D.I.KHAN 132.00 1 SINGLE 99 112.0 180.4 171.1 1302*GURGURI 132.00 1315 TALL 132.00 1 SINGLE 131 112.0 125.0 112.2 1332*BANNU-N 132.00 1340 BANNU 132.00 2 SINGLE 138 112.0 203.0 174.6 1332*BANNU-N 132.00 1340 BANNU 132.00 1 SINGLE 139 112.0 203.0 174.6 1340*BANNU 132.00 1342 BANNU-II 132.00 2 SINGLE 144 112.0 141.6 122.6 1340*BANNU 132.00 1342 BANNU-II 132.00 1 SINGLE 145 112.0 141.6 122.5 1332 BANNU-N 132.00 1340*BANNU 132.00 1 SINGLE 147 112.0 116.4 111.0 1332 BANNU-N 132.00 1340*BANNU 132.00 2 SINGLE 147 112.0 116.4 111.0 1342 BANNU-II 132.00 1350*MIRANSHA 132.00 1 SINGLE 147 112.0 135.5 194.2 1342 BANNU-II 132.00 1344*T-MIRALI 132.00 1 SINGLE 148 112.0 132.1 125.7 1440*TARBELA-R 132.00 1442 GHAZI-IS 132.00 1 SINGLE 181 112.0 115.4 105.7 7430*D.I.KHAN 132.00 7985 D.I.KHAN 66.000 2 SINGLE 217 40.0 52.9 132.2 7430*D.I.KHAN 132.00 7985 D.I.KHAN 66.000 1 SINGLE 218 40.0 54.2 135.5 -------------------------------------------------------------------------------Due to the volume of the output, contingency list was omitted. To overcome these (N-1) violations, more system additions were considered as follows. PESCO Reinforcements Extensions: 1. Additional 132/66 kV 40 MVA T/F at 132 kV D.I.Khan. 504760-01-A4 16 Disco Transmission Expansion Plan National Power System Expansion Plan 11 kV Capacitors: 1. 7.2 MVAR each at T-2 & T-3 and 4.8 MVAR at T-4, 132 kV Mattani. 2. 4.8 MVAR at T-1, 132 kV Shangla. 3. Additional 2.4 MVAR at T-3, 132 kV Tall 4. 4.8 MVAR at T-1, 132 kV Sabirabad. T/ Lines: 1. Additional circuit Mansehra-Balakot-Muzaffarabad with Lynx length (22.8+28=50.8 km) 2. Additional circuit from Gurguri-Tall with Lynx length 30 km. 3. Reconductoring of 220/132 kV Mardan to Mardan-II with Rail conductor length 6 km. 4. New line from Chota Lahor to Dobain with Lynx length 13 km. 5. New line from 220/132 kV Chakdara to Timergara with Lynx length 32 km. 6. New line 220/132 kV Chakdara-Barikot-Swat with Lynx length 30+12= 42 km. 7. Reconductoring of D/C 220/132 kV Shahibagh - 132 kV Shabqadar with Greely length 20.4 km. 8. Reconductoring of D/C 220/132 kV Shahibagh - Shahibagh with Greely length 5.8 km. 9. Reconductoring Jamrud-Peshawar University with Greely length 4 km. 10. New line 220/132 kV D.I.Khan – 132 kV D.I.Khan with Lynx length 25 km. 11. New line 220/132 kV D.I.Khan – Tank with Lynx length 60 km. 12. New line 220/132 kV Bannu-Bannu with Lynx length 16 km. 13. New line Bannu – Bannu-II with Lynx length 12 km. 14. New 2nd line Hattar – Hattar-II with Lynx length 4 km 504760-01-A4 17 Disco Transmission Expansion Plan National Power System Expansion Plan 15. Reconductoring Sheukh Muhammadi – Mattani with Greely length 6.2 km. TESCO Reinforcements 11 kV Capacitors: 1. 4.8 MVAR at T-1, 66 kV Alizai. 2. 2.4 MVAR at T-1, 66 kV Ghiljo. 3. Additional 2.4 MVAR at T-1, 132 kV Miranshah. T/ Lines: 1. New line Bannu-II – Miranshah with Lynx length 55 km. With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow load flow single line diagrams for developed PESCO and TESCO base case for Year-2015 with the above mentioned system reinforcements are given in Appendix-3 (spread over 7 Sheets). 7.1.2 “IESCO” Distribution System for Year-2015 The Year-2015 base case was studied based on the planning criteria described in Section 12.5. The total load of IESCO by Year-2015 is 2,891 MW. The load flow single line diagrams of the full IESCO system are shown in Appendix-2 (spread over 9 Sheets) along with the system additions from Year-2010 to Year-2015. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], marginal voltage problems were recorded within the IESCO system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA 2788 DANDOT CF 132.00 V(PU) V(KV) 2 1.0683 141.02 BUS# X-- NAME --X BASKV AREA 6491 MCLD.GNJ 132.00 V(PU) V(KV) 2 1.0594 139.84 BUSES WITH VOLTAGE LESS THAN 0.9500: 504760-01-A4 18 Disco Transmission Expansion Plan National Power System Expansion Plan BUS# X-- NAME --X BASKV AREA 2782 GARIBWAL 66.000 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 2 0.9468 62.48 Note: Both the Grid Stations are being fed from GEPCO ------------------------------------------------------------------------------- Line/Transformer Overloads: One marginal overloading problem was recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV 215 IBD.P.RD 220.00* AREA 15 BUS# X-- NAME --X BASKV 2025 SANGJANI 132.00 AREA CKT LOADING 2 1 498.7 RATING PERCENT 480.0 103.9 Note: 220 KV Grid Station relate with NTDC -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), some system augmentations and reinforcements were added as follows. 504760-01-A4 19 Disco Transmission Expansion Plan National Power System Expansion Plan 22001 I‐10 Existing Capacity (MVA) 26 22002 I‐10 26 40 22003 I‐10 26 40 20252 Sangjani 13 26 20303 Faqirabad 13 26 20502 Sanjwal 13 26 21551 Bahria Town Ph‐IV 13 40 21351 Chakri 13 26 28531 Fauji CF 13 26 Consumer GS 28532 Fauji CF 13 26 Consumer GS 23503 Jhelum 26 40 23401 Dina 13 26 23402 Dina 13 26 25211 Tarar Khel 6.3 13 28101 Talagang 7.5 26 28102 Talagang 13 26 23301 Chakwal 26 40 23302 Chakwal 26 40 23321 Bestway CF 26 40 Consumer GS 23322 Bestway CF 26 40 Consumer GS 21001 Taxila 13 26 21002 Taxila 13 26 23001 Rewat New 13 26 23002 Rewat New 13 26 Bus # Name of Grid Station Proposed Capacity (MVA) 40 Remark Consumer GS With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. 504760-01-A4 20 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: A few low voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY <-------- B U S --------> V-CONT V-INIT V-MAX V-MIN SINGLE 85 2166 CHAINTBATIAN132.00 0.87572 1.00649 1.10000 0.90000 SINGLE 85 2170 KHUTACTY 132.00 0.87572 1.00649 1.10000 0.90000 SINGLE 85 2180 AZADPATN 132.00 0.89335 0.99475 1.10000 0.90000 CONTINGENCY LEGEND: LABEL SINGLE 85 EVENTS : OPEN LINE FROM BUS 2160 [KAHUTA 132.00] TO BUS 2170 [KHUTACTY 132.00] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 2200*IBD. I-10 132.00 2220 ZEROPOINT 132.00 1 SINGLE 94 114.0 134.5 117.2 % 2190 PIRWADHAI 132.00 2195*ISD. H-11 132.00 1 SINGLE 98 114.0 134.8 119.8 2330 CHAKWAL 132.00 2801*C.S.SHAH 132.00 2 SINGLE 153 112.0 125.3 118.8 2330 CHAKWAL 132.00 2801*C.S.SHAH 132.00 1 SINGLE 154 112.0 125.3 118.8 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 94 : OPEN LINE FROM BUS 2190 [PIRWADHAI 132.00] TO BUS 2195 [ISD. H-11 132.00] CKT 1 SINGLE 98 : OPEN LINE FROM BUS 2200 [IBD. I-10 132.00] TO BUS 2220 [ZEROPOINT 132.00] CKT 1 SINGLE 153 : OPEN LINE FROM BUS 2330 [CHAKWAL 132.00] TO BUS 2801 [C.S.SHAH 132.00] CKT 1 SINGLE 154 : OPEN LINE FROM BUS 2330 [CHAKWAL 132.00] TO BUS 2801 [C.S.SHAH 132.00] CKT 2 -------------------------------------------------------------------------------- 504760-01-A4 21 Disco Transmission Expansion Plan National Power System Expansion Plan To overcome these (N-1) violations, more system additions were considered as follows. 1. Reconductoring 132 kv Transmission Lines a) I-10 - Zero Point from Zigolo to Greely (6.8 KM) b) Pirwadhai – H-11 from Zigolo to Greely (16.6KM) c) Double Circuit C.S. Shah – Chakwal from Lynx to Greely (28.5 KM) 2. Installation of Capacitors a) 4.8 MVAR Cap at T-1 Azadpattan b) 4.8 MVAR Cap at T-2 Kahuta City c) 4.8 MVAR Cap at T-1 Chaint Battian d) 4.8 MVAR Cap at T-2 Chaint Battian 3. Installation of additional Capacitors a) 2.4 to 4.8 MVAR Cap at T-1 Kahuta City b) 2.4 to 4.8 MVAR Cap at T-1 Pinanwal With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed IESCO base case for Year2015 with the above mentioned system reinforcements are shown in Appendix-3 (spread over 9 Sheets). 7.1.3 “GEPCO” Distribution System for Year-2015 The Year-2015 base case was studied based on the planning criteria described in Section 12.5. The total load of GEPCO by Year-2015 is 2,500 MW. The load flow single line diagrams of the full GEPCO system are shown in Appendix-2 (spread over 5 Sheets) along with the system additions from Year-2010 to Year-2015. 504760-01-A4 22 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], no voltage problems were recorded within the GEPCO system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA * NONE * -------------------------------------------------------------------------------- Line/Transformer Overloads: Two marginal overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 3015 MANGOWAL 132.00* 3 30152 T2 11.000 3 1 13.8 13.0 106.2 3180 PASRUR 132.00* 3 31803 T3 11.000 3 1 13.2 13.0 102.4 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), two system reinforcements were added to solve the (N-0) violations as follows. 1. Augmentation of 13 MVA power transformer with 26 MVA at 132 KV Mangowal Grid 2. Augmentation of 13 MVA power transformer with 26 MVA at 132 KV Pasrur 504760-01-A4 23 Disco Transmission Expansion Plan National Power System Expansion Plan With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: One voltage problem was recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY <-------- B U S --------> SINGLE 100 3230 DASKA 66.000 V-CONT V-INIT V-MAX V-MIN 0.87043 0.95210 1.10000 0.90000 CONTINGENCY LEGEND: LABEL SINGLE 100 EVENTS : OPEN LINE FROM BUS 3220 [NANDIPUR 66.000] TO BUS 3230 [DASKA 66.000] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: Two line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY 3004 KHARIAN 132.00 3009*LALAMUSA 132.00 2 SINGLE 34 3004 KHARIAN 132.00 3009*LALAMUSA 132.00 1 3080*SLK.NEW 132.00 3105 SAHUWALA 132.00 1 RATING FLOW % 90.0 130.0 150.8 SINGLE 35 90.0 130.0 150.8 SINGLE 100 112.0 121.1 109.8 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 34 : OPEN LINE FROM BUS 3004 [KHARIAN 132.00] TO BUS 3009 [LALAMUSA 132.00] CKT 1 SINGLE 35 : OPEN LINE FROM BUS 3004 [KHARIAN 132.00] TO BUS 3009 [LALAMUSA 132.00] CKT 2 SINGLE 100 : OPEN LINE FROM BUS 3220 [NANDIPUR 66.000] TO BUS 3230 [DASKA 66.000] CKT 1 -------------------------------------------------------------------------------- 504760-01-A4 24 Disco Transmission Expansion Plan National Power System Expansion Plan To overcome these (N-1) violations, more system additions were considered as follows. 1. Reconductoring of 132 kV Kharian – Lala Musa transmission line circuit No. 1 from Tiger to Greely 2. Reconductoring of 132 kV Kharian – Lala Musa transmission line circuit No. 2 from Tiger to Greely 3. Reconductoring of 132 kV Sahowala – Sailkot new transmission line circuit from Lynx to Greely With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed GEPCO base case for Year2015 with the above mentioned system reinforcements are shown in Appendix-3 (spread over 5 Sheets). 7.1.4 “LESCO” Distribution System for Year-2015 The Year-2015 base case was studied based on the planning criteria described in Section 12.5. The total load of LESCO by Year-2015 is 5,027 MW. The load flow single line diagrams of the full LESCO system are shown in Appendix-2 (spread over 9 Sheets) along with the system additions from Year-2010 to Year-2015. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], a few low voltage problems were recorded within the LESCO system as given below. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA 504760-01-A4 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA 25 Disco Transmission Expansion Plan National Power System Expansion Plan 4600 BUCHEKI 66.000 4 0.8825 58.243 4610 ALI JAJ 66.000 4 0.7304 48.209 4620 MALIKPUR 66.000 4 0.8263 54.537 4650 MOHLAN 66.000 4 0.7515 49.602 40173 BHK T-3 11.000 4 0.9107 10.017 46101 AJ T-1 11.000 4 0.5965 6.562 46102 AJ T-2 11.000 4 0.7375 8.112 46201 MPR T-1 11.000 4 0.7966 8.763 46202 MPR T-2 11.000 4 0.7662 8.428 46501 MOHL T-1 11.000 4 0.6489 7.138 -------------------------------------------------------------------------------- Line/Transformer Overloads: A few overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 280 K.L.PAT 220.00* 15 4145 NKLP-2 132.00 4 1 335.0 160.0 209.4 4300 BUCHEKI 132.00* 4 4600 BUCHEKI 66.000 4 1 78.1 40.0 195.2 4610 ALI JAJ 66.000* 4 46101 AJ T-1 11.000 4 1 14.7 13.0 113.3 4610 ALI JAJ 66.000* 4 46102 AJ T-2 11.000 4 1 13.3 13.0 102.6 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), some system reinforcements were added to solve the (N-0) violations as follows. S.No 1 2 3 Sub‐Station Mohlan Ali Judge Malikpur Scope of Work Conversion from 66 to 132 kV Conversion from 66 to 132 kV Conversion from 66 to 132 kV With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: No voltage problems were recorded (outside: 0.90 – 1.10 pu). 504760-01-A4 26 Disco Transmission Expansion Plan National Power System Expansion Plan Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 4113 MCLEODRD 132.00 4114*SUNYVIEW 132.00 2 SINGLE 165 114.0 157.7 139.7 4113 MCLEODRD 132.00 4114*SUNYVIEW 132.00 1 SINGLE 166 114.0 157.7 139.7 4113*MCLEODRD 132.00 4137 QARTABA 132.00 2 SINGLE 167 114.0 147.5 130.5 4113*MCLEODRD 132.00 4137 QARTABA 132.00 1 SINGLE 168 114.0 147.5 130.5 4114 SUNYVIEW 132.00 4115*P.W.R 132.00 3 SINGLE 169 75.0 106.3 143.2 4114 SUNYVIEW 132.00 4115*P.W.R 132.00 2 SINGLE 170 75.0 106.3 143.2 4133*KOTLKPTO 132.00 4144 NKLP-1 132.00 1 SINGLE 189 202.0 233.5 117.6 4126*MODELTWN 132.00 4145 NKLP-2 132.00 1 SINGLE 190 202.0 214.5 106.2 4126*MODELTWN 132.00 4130 T-LEFO 132.00 1 SINGLE 191 202.0 211.6 104.8 4130*T-LEFO 132.00 4145 NKLP-2 132.00 1 SINGLE 191 202.0 264.4 128.7 4126*MODELTWN 132.00 4145 NKLP-2 132.00 1 SINGLE 194 202.0 247.8 123.1 4126 MODELTWN 132.00 4128*PUNJAB UNIV 132.00 1 SINGLE 197 202.0 233.5 117.0 4130*T-LEFO 132.00 4145 NKLP-2 SINGLE 197 202.0 205.2 100.5 132.00 1 % CONTINGENCY LEGEND: LABEL EVENTS SINGLE 165 : OPEN LINE FROM BUS 4113 [MCLEODRD 132.00] TO BUS 4114 [SUNYVIEW 132.00] CKT 1 SINGLE 166 : OPEN LINE FROM BUS 4113 [MCLEODRD 132.00] TO BUS 4114 [SUNYVIEW 132.00] CKT 2 SINGLE 167 : OPEN LINE FROM BUS 4113 [MCLEODRD 132.00] TO BUS 4137 [QARTABA 132.00] CKT 1 SINGLE 168 : OPEN LINE FROM BUS 4113 [MCLEODRD 132.00] TO BUS 4137 [QARTABA 132.00] CKT 2 SINGLE 169 : OPEN LINE FROM BUS 4114 [SUNYVIEW 132.00] TO BUS 4115 [P.W.R 132.00] CKT 2 SINGLE 170 : OPEN LINE FROM BUS 4114 [SUNYVIEW 132.00] TO BUS 4115 [P.W.R 132.00] CKT 3 SINGLE 189 : OPEN LINE FROM BUS 4126 [MODELTWN 132.00] TO BUS 4128 [PUNJAB UNIV 132.00] CKT 1 SINGLE 190 : OPEN LINE FROM BUS 4126 [MODELTWN 132.00] TO BUS 4130 [T-LEFO 132.00] CKT 1 SINGLE 191 : OPEN LINE FROM BUS 4126 [MODELTWN 132.00] TO BUS 4145 [NKLP-2 132.00] CKT 1 SINGLE 194 : OPEN LINE FROM BUS 4130 [T-LEFO 132.00] TO BUS 4145 [NKLP-2 132.00] CKT 1 SINGLE 197 : OPEN LINE FROM BUS 4133 [KOTLKPTO 132.00] TO BUS 4144 [NKLP-1 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. 1. Replacement of D/C underground cable from 132kV Mcleod Road – Sunny View with new D/C underground 1200mm2 XLPE Cable. 2. Replacement of D/C underground cable from 132kV Mcleod Road – Qartaba with new D/C underground 1200mm2 XLPE Cable. 3. Replacement of D/C underground cable from 132kV Sunny View – PWR with new D/C underground 1200mm2 XLPE Cable. 504760-01-A4 27 Disco Transmission Expansion Plan National Power System Expansion Plan 4. Making Double In/Out at 132kV Old Kot Lakhpat Grid Station. 5. Making Double In/Out at 132kV LEFO Grid Station. 6. Making In/Out of 132kV Model Town – LEFO S/C at 132kV Town- Ship Grid Station. 7. The 132kV Township-LEFO D/C line should normally be opened and can be closed under emergency. 8. The 132kV Township-Wapda Town D/C line should normally closed. With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed LESCO base case for Year2015 with the above mentioned system reinforcements are shown in Appendix-3 (spread over 9 Sheets). 7.1.5 “FESCO” Distribution System for Year-2015 The Year-2015 base case was studied based on the planning criteria described in Section 12.5. The total load of FESCO by Year-2015 is 3,289 MW. The load flow single line diagrams of the full FESCO system are shown in Appendix-2 (spread over 6 Sheets) along with the system additions from Year-2010 to Year-2015. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], a few high voltage and many low voltage problems were recorded within the FESCO system as given below. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 5001 DAUDKHEL 132.00 5 1.0515 138.80 54803 T3 11.000 5 1.0947 12.042 BUS# X-- NAME --X BASKV AREA 5002 JINNAH 132.00 V(PU) V(KV) 5 1.0511 138.75 BUSES WITH VOLTAGE LESS THAN 0.9500: 504760-01-A4 28 Disco Transmission Expansion Plan National Power System Expansion Plan BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 4500 KHEWA 132.00 5 0.9455 124.81 5190 RUKDOGRN 66.000 5 0.8413 55.523 5192 T-RAKDRN 66.000 5 0.8809 58.138 5200 BHAKKAR 66.000 5 0.9096 60.035 5210 BEHAL 66.000 5 0.8754 57.774 5220 MANKERA 66.000 5 0.9395 62.009 5230 HYD.THAL 66.000 5 0.9248 61.037 5240 ADHIKOT 66.000 5 0.8941 59.009 5680 SKASARNS 66.000 5 0.9068 59.851 7455 BHAKKAR 132.00 5 0.9436 124.56 7860 GARMHRJA 66.000 5 0.9009 59.462 7870 A.HAZARI 66.000 5 0.8441 55.713 42901 T1 11.000 5 0.9462 10.408 42902 T2 11.000 5 0.9462 10.408 44721 T1 11.000 5 0.9022 9.924 44722 T2 11.000 5 0.9328 10.261 44903 T3 11.000 5 0.9037 9.941 50402 T2 11.000 5 0.9452 10.397 51301 T1 11.000 5 0.9254 10.180 51302 T2 11.000 5 0.9324 10.257 51801 T1 11.000 5 0.9301 10.231 51901 T1 11.000 5 0.7751 51902 T2 11.000 5 0.8067 8.874 52001 T1 11.000 5 0.9186 10.104 52101 T1 11.000 5 0.8221 9.043 52201 T1 11.000 5 0.8653 9.518 52301 T1 11.000 5 0.8969 9.866 52401 T1 11.000 5 0.7740 8.514 54001 T1 11.000 5 0.9500 10.450 54031 T1 11.000 5 0.9439 10.383 54032 T1 11.000 5 0.9439 10.383 54251 T1 11.000 5 0.9379 10.317 54301 T1 11.000 5 0.9233 10.156 54402 T2 11.000 5 0.8417 54451 T 11.000 5 0.8800 9.680 56201 T1 11.000 5 0.9319 10.251 56801 T1 11.000 5 0.8510 9.361 56802 T2 11.000 5 0.8457 56902 T2 11.000 5 0.9068 9.974 57001 T1 11.000 5 0.9478 10.426 57002 T2 11.000 5 0.7906 8.696 57003 T3 11.000 5 0.9479 10.427 57701 T1 11.000 5 0.9486 10.435 57702 T2 11.000 5 0.9415 10.356 78502 T2 11.000 5 0.9065 9.971 78601 T1 11.000 5 0.8249 9.073 78701 T1 11.000 5 0.8355 9.191 78702 T2 11.000 5 0.7973 8.770 8.526 9.258 9.302 -------------------------------------------------------------------------------- Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 360 LUDEWALA 220.00* 15 5419 LUDWLA-N 132.00 5 1 642.4 480.0 133.8 420 NISATABD 220.00* 15 4330 NSHTBD-1 132.00 5 1 364.1 254.0 143.4 4380 FBD-TH-O 132.00* 5 43801 T1 11.000 5 1 46.0 40.0 115.1 4414 STIANA RD 132.00* 5 44141 T1 11.000 5 1 26.8 26.0 103.0 4440 JHANG.RD 132.00* 5 44402 T2 11.000 5 1 42.4 40.0 105.9 4440 JHANG.RD 132.00* 5 44403 T3 11.000 5 1 26.9 26.0 103.5 4472 SAMMDRI 132.00* 5 44721 T1 11.000 5 1 36.9 26.0 142.0 4482 PIRMEHL 132.00* 5 44822 T2 11.000 5 1 27.3 26.0 105.0 4490 JHANG 132.00* 5 44901 T1 11.000 5 1 41.5 40.0 103.8 4490 JHANG 132.00* 5 44903 T3 11.000 5 1 41.1 26.0 157.9 4550 KAMALIA 132.00* 5 45501 T1 11.000 5 1 41.2 40.0 102.9 5000 DAUDKHLO 132.00* 5 66.000 5 1 44.1 40.0 110.1 5020 MIANWALI 132.00* 5 11.000 5 1 43.4 40.0 108.6 504760-01-A4 5100 DAUDKHEL 50202 T2 29 Disco Transmission Expansion Plan National Power System Expansion Plan 5040 PIPLAN 132.00* 5 50402 T2 11.000 5 1 14.7 13.0 113.2 5110 KALABAGH 66.000 5 51101 T1 11.000* 5 1 11.7 7.6 153.5 5120 MAKARWAL 66.000* 5 51201 T1 11.000 5 1 9.1 7.5 121.0 5130 TRUG 66.000* 5 51301 T1 11.000 5 1 13.3 12.5 106.2 5130 TRUG 66.000* 5 51302 T2 11.000 5 1 7.1 6.3 112.6 5200 BHAKKAR 66.000 5 5220 MANKERA 66.000* 5 1 58.0 39.0 148.8 5200 BHAKKAR 66.000 5 7455 BHAKKAR 132.00* 5 1 42.4 40.0 106.0 5210 BEHAL 66.000* 5 52101 T1 11.000 5 1 10.8 7.5 143.6 5220 MANKERA 66.000* 5 52201 T1 11.000 5 1 13.4 13.0 102.7 5240 ADHIKOT 66.000* 5 52401 T1 11.000 5 1 17.3 13.0 133.3 5400 JAUHRABD 132.00* 5 54001 T1 11.000 5 1 46.9 40.0 117.4 5403 SHAHPUR 132.00* 5 54031 T1 11.000 5 1 13.6 13.0 104.6 5403 SHAHPUR 132.00* 5 54032 T1 11.000 5 1 13.6 13.0 104.6 5425 KIRANAHL 132.00* 5 54251 T1 11.000 5 1 17.9 13.0 138.0 5425 KIRANAHL 132.00 5 54252 T2 11.000* 5 1 28.3 26.0 108.7 5430 KUDLATHI 132.00* 5 54301 T1 11.000 5 1 20.3 16.0 126.7 5440 BHAMB 132.00* 5 54402 T2 11.000 5 1 45.3 26.0 174.3 5445 SARGODAC 132.00* 5 54451 T 11.000 5 1 50.9 26.0 195.8 5451 126-SBPL 132.00* 5 54511 T1 11.000 5 1 13.3 13.0 102.3 5700 PATANKOT 66.000* 5 57001 T1 11.000 5 1 15.5 13.0 119.0 5700 PATANKOT 66.000* 5 57002 T2 11.000 5 1 22.1 13.0 170.1 5770 BHABRA 66.000* 5 57702 T2 11.000 5 1 5.7 5.6 101.6 5770 BHABRA 66.000* 5 57703 T3 11.000 5 1 10.1 7.5 134.6 7005 SHORKCTY 132.00 5 70052 T2 11.000* 5 1 18.9 13.0 145.6 7842 T-RANGPR 66.000 6 66.000* 5 1 50.4 39.0 129.3 7850 AHMDPRSL 66.000* 5 78502 T2 11.000 5 1 11.3 10.0 113.0 7860 GARMHRJA 66.000* 5 78601 T1 11.000 5 1 18.2 13.0 139.8 7850 AHMDPRSL -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), many system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. 504760-01-A4 30 Disco Transmission Expansion Plan National Power System Expansion Plan Sr.No. Grid Station KV PSS/E Bus Rinforcement Required No. 1 RUKDOGRN 66 5190 2 MANKERA 66 5220 3 ADHIKOT 66 5240 4 SKASARNS 66 5680 5 JHNIAN.S 66 5690 6 7 8 GARMHRJA Sumandri Sumandri 66 132 132 7860 4472 4472 9 Jhang‐1 132 4490 10 Piplan 132 5040 11 Makerwal 66 5120 12 Trug 66 5130 13 Jauhrabad 132 5400 14 Shah pur 132 5403 15 Kud Lathi 132 5430 16 Bhamb 132 5440 17 Sargodha‐1 132 5445 18 Pathan kot 66 5700 19 Bhabra 66 5770 20 GARMHRJA 66 7860 21 Jhang Road 132 4440 22 23 Pir Mehal Kiran Hill 132 132 4482 5425 24 Mianwali 132 5020 25 26 Kala Bagh 126 SB 66 132 5110 5451 27 Kamalia 132 4550 Capacitors of 9 MVAR at T1 and T2 (Also conversion for N‐1) Capacitor of 24 MVAR at 66 KV bus 5220 Increased capacitor from 1.8 to 7.6 MVAR at T1 Added 2.6 MVAR Capacitor at T1 AND T2 Installed 4.2 MVAR Capacitor at T2 (Also conversion for N‐1) 12 MVAR Capacitor installed at 7860 bus Augmention was Required with 40 MVA T/F Capacitors of 7.2 MVAR at this T2 Augmentation was required with 40 MVA T/F (Also proposed in Trench‐2) Augmentation was required with 20/26 MVA T/F Augmentation was required 7.5 MVA with 13 MVA t/f Augmented 12.5 MVA T/F with 20/26 T/F,Installed Capacitors of 2.4 MVAR at this T2 (Also conversion for N‐1) Extension of 20/26 MVA T/F.(Also proposed in Trench‐2) Augmented 10/13 MVA t/f with 20/26 MVA t/f Augmentation from 16 MVA to 20/26 MVA Augmentation at T2, 20/26 with 132 kv 40 MVA t/f and 9 MVAR Capacitor Augmentation was required 20/26 with 132 kv 40 MVA t/f and 9 MVAR Capacitor Augmented T1 with 20/26 MVA T/F and 4.2 MVAR Capacitors at T2 Augmented T2 of bus 57702 with 10/13 T/F and addes 2.4 MVAR Capacitors Augmented 10/13 MVA T/F with 20/26MVA Augmented T3 20/26 t/f with 40 MVA (Also proposed in Trench‐2) Augmented T2, 20/26 t/f with 40 MVA Augmented 10/13 MVA t/f with 20/26 MVA Augmented T2, 20/26 t/f with 40 MVA (Also Extension in Trench‐2) Augmented 7.6 MVA t/f with 20/26 MVA Augmented 10/13 MVA t/f with 20/26 MVA Extension of 20/26 MVA T/F (Also proposed in Trench‐2) With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. 504760-01-A4 31 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: A few low voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN BASE CASE <-------- B U S --------> 5220 MANKERA 66.000 1.12060 1.12060 1.10000 0.90000 BASE CASE 5230 HYD.THAL 66.000 1.10865 1.10865 1.10000 0.90000 SINGLE 62 4290 BHOWANA 132.00 0.88352 0.97541 1.10000 0.90000 SINGLE 63 4290 BHOWANA 132.00 0.87787 0.97541 1.10000 0.90000 SINGLE 145 5120 MAKARWAL 66.000 0.89431 1.01081 1.10000 0.90000 SINGLE 158 5190 RUKDOGRN 66.000 0.86588 0.98898 1.10000 0.90000 SINGLE 158 5192 T-RAKDRN 66.000 0.89279 1.00757 1.10000 0.90000 SINGLE 171 5240 ADHIKOT 66.000 0.56917 1.00367 1.10000 0.90000 SINGLE 171 5670 QUAIDABD 66.000 0.65730 1.03426 1.10000 0.90000 SINGLE 171 5680 SKASARNS 66.000 0.58232 1.00403 1.10000 0.90000 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 62 : OPEN LINE FROM BUS 4450 [FBD.FACT 132.00] TO BUS 4462 [FSD CITY 132.00] CKT 1 SINGLE 63 : OPEN LINE FROM BUS 4460 [SMNDRIRD 132.00] TO BUS 4462 [FSD CITY 132.00] CKT 1 SINGLE 145 : OPEN LINE FROM BUS 5100 [DAUDKHEL 66.000] TO BUS 5120 [MAKARWAL 66.000] CKT 1 SINGLE 158 : OPEN LINE FROM BUS 5192 [T-RAKDRN 66.000] TO BUS 5200 [BHAKKAR 66.000] CKT 1 SINGLE 171 : OPEN LINE FROM BUS 5410 [QUAIDABD 132.00] TO BUS 5670 [QUAIDABD 66.000] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 5000*DAUDKHLO 132.00 5100 DAUDKHEL 66.000 1 BASE CASE 40.0 44.0 110.0 4430 NAR.W.RD 132.00 4435*FBD.IND. 132.00 1 SINGLE 43 112.0 140.1 128.0 4430 NAR.W.RD 132.00 4440*JHANG.RD 132.00 1 SINGLE 55 112.0 173.4 163.2 4430 NAR.W.RD 132.00 4440*JHANG.RD 132.00 1 SINGLE 62 112.0 252.5 243.2 4430*NAR.W.RD 132.00 4460 SMNDRIRD 132.00 1 SINGLE 62 112.0 140.3 130.5 4410 CHINOIT ROAD132.00 4420*AGR.UNIV 132.00 1 SINGLE 63 202.0 199.5 101.4 504760-01-A4 32 % Disco Transmission Expansion Plan National Power System Expansion Plan 4430 NAR.W.RD 132.00 4440*JHANG.RD 132.00 1 SINGLE 63 112.0 269.7 261.3 4430*NAR.W.RD 132.00 4460 SMNDRIRD 132.00 1 SINGLE 63 112.0 148.6 138.7 4470*GOJRA 132.00 4477 TTSINGHN 132.00 2 SINGLE 75 202.0 209.9 102.3 4470*GOJRA 132.00 4477 TTSINGHN 132.00 1 SINGLE 76 202.0 209.9 102.3 5000*DAUDKHLO 132.00 5001 DAUDKHEL 132.00 2 SINGLE 119 114.0 209.2 176.7 5000*DAUDKHLO 132.00 5001 DAUDKHEL 132.00 1 SINGLE 120 114.0 209.2 176.7 5032 CHASHM-L 132.00 5040*PIPLAN 132.00 1 SINGLE 135 112.0 111.8 104.0 5030 WANBUCHN 132.00 5040*PIPLAN 132.00 1 SINGLE 140 112.0 110.7 105.6 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 43 : OPEN LINE FROM BUS 4410 [CHINOIT ROAD132.00] TO BUS 4420 [AGR.UNIV 132.00] CKT 1 SINGLE 55 : OPEN LINE FROM BUS 4440 [JHANG.RD 132.00] TO BUS 4450 [FBD.FACT 132.00] CKT 1 SINGLE 62 : OPEN LINE FROM BUS 4450 [FBD.FACT 132.00] TO BUS 4462 [FSD CITY 132.00] CKT 1 SINGLE 63 : OPEN LINE FROM BUS 4460 [SMNDRIRD 132.00] TO BUS 4462 [FSD CITY 132.00] CKT 1 SINGLE 75 : OPEN LINE FROM BUS 4470 [GOJRA 132.00] TO BUS 4477 [TTSINGHN 132.00] CKT 1 SINGLE 76 : OPEN LINE FROM BUS 4470 [GOJRA 132.00] TO BUS 4477 [TTSINGHN 132.00] CKT 2 SINGLE 119 : OPEN LINE FROM BUS 5000 [DAUDKHLO 132.00] TO BUS 5001 [DAUDKHEL 132.00] CKT 1 SINGLE 120 : OPEN LINE FROM BUS 5000 [DAUDKHLO 132.00] TO BUS 5001 [DAUDKHEL 132.00] CKT 2 SINGLE 135 : OPEN LINE FROM BUS 5030 [WANBUCHN 132.00] TO BUS 5040 [PIPLAN 132.00] CKT 1 SINGLE 140 : OPEN LINE FROM BUS 5032 [CHASHM-L 132.00] TO BUS 5040 [PIPLAN 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. Sr.No. Rinforcement Required 1 2 3 4 5 6 7 8 7 8 9 10 Conversion 66 KV Rukh Dagran G/S to 132 KV. Conversion 66 KV Fazil G/S to 132 KV. Conversion 66 KV Trug G/S to 132 KV. Conversion 66 KV 18‐Hazari G/S to 132 KV. Conversion 66 KV GM Raja G/S to 132 KV. New Double Rail Cct. From 132 KV Daudkhel (Mari) to 132 KV Daudkhel Reconducting Lynx with Greely from 132 KV Piplan‐Chashma Reconducting Lynx with Greely from 132 KV Piplan‐Wan Bchran New Double Cct. Rail From 500 KV Jhang Road to 132 KV Jhang Road New Double Cct. Rail From 220 KV T.T Singh to 132 KV Mureedwala New Double Cct. Rail From 220 KV T.T Singh to 132 KV Gojra New Double Cct. Rail From 220 KV Chinoit to 132KV Chinot‐I with IN/OUT,132 KV Chenab Nagar and 132 KV Chinoit‐2 With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed FESCO base case for Year2015 with the above mentioned system reinforcements are shown in Appendix-3 (spread over 6 Sheets). 504760-01-A4 33 Disco Transmission Expansion Plan National Power System Expansion Plan 7.1.6 “MEPCO” Distribution System for Year-2015 The Year-2015 base case was studied based on the planning criteria described in Section 12.5. The total load of MEPCO by Year-2015 is 3,860 MW. The load flow single line diagrams of the full MEPCO system are shown in Appendix-2 (spread over 7 Sheets) along with the system additions from Year-2010 to Year-2015. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.08 pu], many voltage problems were recorded within the MEPCO system as given below. The upper voltage limit for MEPCO system was set to 1.08 pu instead of 1.05 pu due to the radial nature of the system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0800: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 7200 KHANPUR 132.00 6 1.0875 143.55 7220 R.Y.KHAN 132.00 6 1.0920 144.15 7221 RYK-NEW 132.00 6 1.1065 146.05 7225 R.Y.KHN2 132.00 6 1.0935 144.35 7226 RYK-T 132.00 6 1.0970 144.81 7230 SADIQABD 132.00 6 1.0914 144.06 7235 NAWAZABD 132.00 6 1.0932 144.30 7240 J.D.WALI 132.00 6 1.0821 142.84 71501 SAMASATA T-111.000 6 1.1014 12.116 71702 AHMDPR.E T-211.000 6 1.0917 12.009 72001 KHANPUR T-1 11.000 6 1.1115 12.227 72201 R.Y.KHAN T-111.000 6 1.1904 13.094 72202 R.Y.KHAN T-211.000 6 1.1582 12.741 72203 R.Y.KHAN T-311.000 6 1.1526 12.679 72251 R.Y.KHN2 T-111.000 6 1.1425 12.568 72252 R.Y.KHN2 T-211.000 6 1.1544 12.699 72301 SADIQABD T-111.000 6 1.2308 13.539 72302 SADIQABD T-211.000 6 1.2499 13.749 72303 SADIQABD T-311.000 6 1.1772 12.950 72351 NAWAZ T-1 6 1.0830 11.913 72401 J.D.WALI T-111.000 6 1.1709 12.880 11.000 BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 6450 DHARNWLA 66.000 6 0.9412 62.117 6480 MNCHNBAD 66.000 6 0.8056 53.172 6481 T-MICHBD 66.000 6 0.8102 53.473 6490 MCLD.GNJ 66.000 6 0.7634 50.383 6500 HARONABD 66.000 6 0.9467 62.483 6510 FAQIRWLI 66.000 6 0.8069 53.256 6511 T-FQWALI 66.000 6 0.8610 56.826 6520 FORTABAS 66.000 6 0.8028 52.984 7006 HEAD SIDHNAI132.00 6 0.9128 120.49 7010 KACHAKHU 132.00 6 0.9391 123.96 7025 J.MARYLA _1132.00 6 0.9468 124.98 7030 KABIRWLA 132.00 6 0.9403 124.12 7032 MP.PAHOR 132.00 6 0.9248 122.08 7141 B.W.P66 66.000 6 0.9462 62.449 7325 LAYYAH 132.00 6 0.9459 124.86 7340 MEHRKHAS 132.00 6 0.9000 118.80 7350 DMR WALA 132.00 6 0.8845 116.75 7360 JATOIJNB 132.00 6 0.8692 114.74 7370 KHRPRSDT 132.00 6 0.8692 114.74 7435 PARCO 132.00 6 0.9270 122.37 7436 T-PARCO 132.00 6 0.9268 122.34 7450 CHAUBARA 132.00 6 0.9231 121.85 7456 CHOKAZAM 132.00 6 0.9485 125.20 7459 KHANGARH 132.00 6 0.9474 125.05 7780 YAZMAN 66.000 6 0.6120 40.393 7790 MARROT 66.000 6 0.3700 24.422 7810 KOTSULTN 66.000 6 0.7718 50.939 7811 T-KOTSUL 66.000 6 0.7761 51.223 504760-01-A4 34 Disco Transmission Expansion Plan National Power System Expansion Plan 7820 LAYYAH 66.000 6 0.6409 42.297 7825 KAROR.LH 66.000 6 0.5096 33.635 7880 CHAUBARA 66.000 6 0.9219 60.846 7890 NAWANKOT 66.000 6 0.9217 60.833 7891 T.NWANKOT 66.000 6 0.9219 60.846 7920 KOTCHOTA 66.000 6 0.8809 58.139 7921 JAMPUR 66.000 6 0.8135 53.688 7925 CHOTI 66.000 6 0.8496 56.077 7933 FAZALPUR 132.00 6 0.9279 122.48 7935 DAJAL 66.000 6 0.7932 52.353 7951 RAJANPUR 132.00 6 0.9046 119.40 7983 HEADRAJK 66.000 6 0.5450 35.967 60301 QADIRABD T-111.000 6 0.9118 10.030 60501 BNGAHYAT T-111.000 6 0.9258 10.184 61002 NOORPUR T-2 11.000 6 0.9138 10.052 61501 SH.FAZAL T-111.000 6 0.9337 10.271 62102 SAHUKA T-2 6 0.9496 10.445 64801 MNCHNBAD T-111.000 6 0.8212 9.033 64802 MNCHNBAD T-211.000 6 0.7728 8.501 64901 MCLD.GNJ T-111.000 6 0.6387 7.025 65101 FAQIRWLI T-111.000 6 0.8405 9.246 65102 FAQIRWLI T-211.000 6 0.8611 9.472 65201 FORTABAS T-111.000 6 0.8257 9.082 70061 H SIDNAI T-111.000 6 0.9330 10.263 70062 H SIDNAI T-211.000 6 0.7761 8.537 70082 M VIRK T-2 6 0.9241 10.165 70101 KACHAKHU T-111.000 6 0.8442 9.286 70102 KACHAKHU T-211.000 6 0.8708 70202 KHANEWAL T-211.000 6 0.9453 10.398 70203 KHANEWAL T-311.000 6 0.9454 10.399 70251 J.MARL T-1 6 0.9058 11.000 11.000 11.000 9.579 9.964 70252 J.MARYLA T-211.000 6 0.9060 70301 KABIRWLA T-111.000 6 0.9458 10.404 70302 KABIRWLA T-211.000 6 0.9313 10.244 70321 MP PAHOR T-111.000 6 0.8627 9.490 70322 MP PAHOR T-211.000 6 0.8614 70401 GARHMORE T-111.000 6 0.8859 9.745 70751 MUKHDM.R T-111.000 6 0.9262 10.188 70752 MUKHDM.R T-211.000 6 0.9355 10.291 71402 BHAWALPR T-211.000 6 0.9488 10.437 71851 KHANBELA T-111.000 6 0.9387 10.326 73281 KBGASHER T-111.000 6 0.9403 10.344 73303 MZFRGARH T-311.000 6 0.9496 10.445 73402 MEHRKHAS T-211.000 6 0.9269 10.195 73501 DMR WALA T-111.000 6 0.9293 10.222 73502 DMR WALA T-211.000 6 0.8744 9.618 73601 JATOIJNB T-111.000 6 0.8411 9.253 73602 JATOIJNB T-211.000 6 0.8592 9.451 73701 KHRPRSDT T-111.000 6 0.8952 9.848 74001 TAUNSA T-1 11.000 6 0.8937 9.831 74002 TAUNSA T-2 6 0.8944 9.839 74562 C AZAM T-2 11.000 6 0.8576 9.434 11.000 9.966 9.476 74591 KHANGARH T-111.000 6 0.9135 10.049 74651 KOTCHUTA T-111.000 6 0.9464 10.411 77801 YAZMAN T-1 11.000 6 0.4548 5.003 77901 MAROOT T-1 11.000 6 0.2968 3.265 77902 MAROOT T-2 11.000 6 0.3255 3.580 78101 KOTSULTN T-111.000 6 0.6447 7.091 78102 KOTSULTN T-211.000 6 0.7186 7.905 78251 KAROR.LH T-111.000 6 0.3729 4.102 78252 KAROR.LH T-211.000 6 0.3911 4.302 78312 FATEPUR T-2 11.000 6 0.7636 8.400 78901 NAWANKOT T-111.000 6 0.9145 10.060 79211 JAMPUR T-1 11.000 6 0.7649 8.414 79251 CHOTI T-1 11.000 6 0.7385 8.123 79301 JAMPUR T-1 11.000 6 0.9317 10.248 79302 JAMPUR T-2 11.000 6 0.8855 9.741 79331 FAZALPUR T-111.000 6 0.8426 9.268 79332 FAZALPUR T-211.000 6 0.7883 8.671 79351 DAJAL T-1 11.000 6 0.7259 7.985 79512 RAJANPUR T-211.000 6 0.9105 10.015 79811 ALI PUR T-1 11.000 6 0.8960 9.856 -------------------------------------------------------------------------------- Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 520 PIRNGHAB 220.00* 15 7100 P.GAIB-1 132.00 6 1 504.6 254.0 198.7 540 KAPCO220 220.00* 15 7300 KAPCO 132.00 6 1 494.8 400.0 123.7 550 BAHWALPR 220.00* 15 7139 B.W.P-N 132.00 6 1 634.9 480.0 132.3 6030 QADIRABD 132.00* 6 60301 QADIRABD T-111.000 6 1 13.1 13.0 100.7 6150 SH.FAZAL 132.00* 6 61501 SH.FAZAL T-111.000 6 1 28.9 26.0 111.2 6150 SH.FAZAL 132.00* 6 61502 SH.FAZAL T-211.000 6 1 14.7 13.0 113.3 6178 KARAMPUR 132.00 6 61782 KARAMPUR T-211.000* 6 1 11.3 10.0 112.8 504760-01-A4 35 Disco Transmission Expansion Plan National Power System Expansion Plan 6190 BWL.NAGR 132.00* 6 66.000 6 1 46.8 37.5 124.9 6421 K.P.T0MI 132.00* 6 64211 K.P.T0MI T-111.000 6 1 13.6 13.0 104.8 6450 DHARNWLA 66.000* 6 64501 DHARNWLA T-111.000 6 1 15.4 13.0 118.8 6451 DAMMARWALA 132.00* 6 64511 DAMRWALA T-111.000 6 1 11.0 10.0 109.8 6490 MCLD.GNJ 66.000* 6 64901 MCLD.GNJ T-111.000 6 1 16.1 13.0 123.8 6520 FORTABAS 66.000* 6 65201 FORTABAS T-111.000 6 1 13.8 13.0 106.5 7006 HEAD SIDHNAI132.00* 6 70061 H SIDNAI T-111.000 6 1 14.1 13.0 108.2 7008 M VIRK 132.00* 6 70081 M VIRK T-1 11.000 6 1 16.7 13.0 128.6 7020 KHANEWAL 132.00* 6 70202 KHANEWAL T-211.000 6 1 29.8 26.0 114.5 7020 KHANEWAL 132.00* 6 70203 KHANEWAL T-311.000 6 1 40.3 40.0 100.7 7030 KABIRWLA 132.00* 6 70301 KABIRWLA T-111.000 6 1 35.2 26.0 135.2 7030 KABIRWLA 132.00* 6 70302 KABIRWLA T-211.000 6 1 39.5 26.0 152.0 7040 GARHMORE 132.00* 6 70401 GARHMORE T-111.000 6 1 25.3 13.0 194.4 7070 MAILSI 132.00* 6 70701 MAILSI T-1 11.000 6 1 28.3 26.0 108.9 7075 MUKHDM.R 132.00* 6 70751 MUKHDM.R T-111.000 6 1 14.2 13.0 109.3 7100 P.GAIB-1 132.00 6 7280 MN.VR.RD 132.00* 6 1 153.3 112.0 136.9 7100 P.GAIB-1 132.00 6 7285 QASIMPUR 132.00* 6 1 115.9 112.0 103.5 7120 LODHRAN 132.00* 6 71201 LODHRAN T-1 11.000 6 1 29.0 26.0 111.6 7120 LODHRAN 132.00* 6 71202 LODHRAN T-2 11.000 6 1 30.6 26.0 117.9 7130 BU.JADID 132.00* 6 71301 BU.JADID T-111.000 6 1 25.2 13.0 193.8 7139 B.W.P-N 132.00 6 7140 BHAWALPR 132.00* 6 2 133.1 112.0 118.8 7139 B.W.P-N 132.00 6 7145 BPUR CANTT 112.00* 6 1 147.0 112.0 131.2 7140 BHAWALPR 132.00* 6 7141 B.W.P66 66.000 6 1 80.3 37.5 214.1 7140 BHAWALPR 132.00* 6 7145 BPUR CANTT 112.00 6 1 112.2 112.0 100.2 7141 B.W.P66 66.000 6 7780 YAZMAN 66.000* 6 1 75.6 39.0 193.9 7147 KARORPCA 132.00* 6 71471 KARORPCA T-111.000 6 1 33.4 26.0 128.4 7147 KARORPCA 132.00* 6 71472 KARORPCA T-211.000 6 1 29.1 26.0 111.9 7160 LIAQATPR 132.00* 6 71602 LIAQATPR T-211.000 6 1 27.2 26.0 104.6 7170 AHMDPR.E 132.00* 6 71703 AHMDPR.E T-311.000 6 1 27.5 26.0 105.9 7178 CHAK 139 132.00* 6 71781 CHAK 139 T-111.000 6 1 14.3 13.0 110.3 7180 FEROZA 132.00* 6 132.00 6 1 123.3 112.0 110.0 7180 FEROZA 132.00* 6 71801 FEROZA T-1 11.000 6 1 16.1 13.0 123.6 7185 KHANBELA 132.00* 6 71851 KHANBELA T-111.000 6 1 32.8 26.0 126.1 7200 KHANPUR 132.00* 6 72002 KHANPUR T-2 11.000 6 1 29.2 26.0 112.3 7210 MWQRSHIA 132.00* 6 72101 MWQRSHIA T-111.000 6 1 31.4 26.0 120.8 7220 R.Y.KHAN 132.00* 6 72201 R.Y.KHAN T-111.000 6 1 28.9 26.0 111.2 7220 R.Y.KHAN 132.00* 6 72202 R.Y.KHAN T-211.000 6 1 49.5 40.0 123.8 7220 R.Y.KHAN 132.00* 6 72203 R.Y.KHAN T-311.000 6 1 36.1 26.0 138.7 7225 R.Y.KHN2 132.00* 6 72251 R.Y.KHN2 T-111.000 6 1 22.1 13.0 170.2 7225 R.Y.KHN2 132.00* 6 72252 R.Y.KHN2 T-211.000 6 1 14.8 13.0 114.2 7250 MN.KH.RD 132.00* 6 72502 MN.KH.RD T-211.000 6 1 29.7 26.0 114.2 7265 QASIMBGH 132.00* 6 72651 Q BAGH T-1 11.000 6 1 28.5 26.0 109.6 7265 QASIMBGH 132.00* 6 72652 Q BAGH T-2 11.000 6 1 28.6 26.0 110.0 7285 QASIMPUR 132.00* 6 7955 QASIMPUR 66.000 6 2 43.8 37.0 118.3 7288 SHUJABAD 132.00* 6 72882 SHUJABAD T-211.000 6 1 28.1 26.0 108.0 7290 MESCO 132.00 6 72903 MESCO T-3 11.000* 6 1 26.2 26.0 100.7 7300 KAPCO 132.00 6 7331 KOTADU-O 132.00* 6 1 117.9 112.0 105.2 7300 KAPCO 132.00 6 7331 KOTADU-O 132.00* 6 2 117.9 112.0 105.2 7300 KAPCO 132.00* 6 7400 TAUNSA 132.00 6 1 151.5 112.0 135.3 7320 GUJRAT.S 132.00* 6 73202 GUJRAT.S T-211.000 6 1 11.5 6.3 182.5 7325 LAYYAH 132.00* 6 73252 LAYYAH T-2 11.000 6 1 27.1 26.0 104.1 7328 KBGASHER 132.00* 6 73281 KBGASHER T-111.000 6 1 29.9 26.0 114.9 7330 MZFRGARH 132.00 6 7459 KHANGARH 132.00* 6 1 114.1 112.0 101.9 7331 KOTADU-O 132.00* 6 7332 N.A.WALI 132.00 6 1 115.6 112.0 103.2 7340 MEHRKHAS 132.00* 6 73401 MEHRKHAS T-111.000 6 1 13.6 10.0 135.7 504760-01-A4 6470 BWL.NAGR 7200 KHANPUR 36 Disco Transmission Expansion Plan National Power System Expansion Plan 7340 MEHRKHAS 132.00* 6 73402 MEHRKHAS T-211.000 6 1 28.8 26.0 110.8 7360 JATOIJNB 132.00* 6 73601 JATOIJNB T-111.000 6 1 11.5 10.0 114.9 7370 KHRPRSDT 132.00* 6 73701 KHRPRSDT T-111.000 6 1 11.4 10.0 113.9 7400 TAUNSA 132.00* 6 74001 TAUNSA T-1 11.000 6 1 13.7 13.0 105.7 7456 CHOKAZAM 132.00* 6 74562 C AZAM T-2 11.000 6 1 15.7 13.0 120.8 7460 D.G.KHAN 132.00* 6 7910 D.G.KHAN 66.000 6 1 36.0 31.5 114.2 7465 KOTCHUTA 132.00* 6 74651 KOTCHUTA T-111.000 6 1 31.1 26.0 119.5 7590 SKHISRWR 132.00* 6 75901 SKHISRWR T-111.000 6 1 8.5 6.3 135.1 7780 YAZMAN 66.000* 6 77801 YAZMAN T-1 11.000 6 1 15.5 14.0 111.0 7800 KOTADDU 66.000 6 7811 T-KOTSUL 66.000* 6 1 53.9 39.0 138.2 7810 KOTSULTN 66.000* 6 78101 KOTSULTN T-111.000 6 1 8.1 5.6 144.6 7810 KOTSULTN 66.000* 6 78102 KOTSULTN T-211.000 6 1 5.7 5.0 115.0 7825 KAROR.LH 66.000* 6 78252 KAROR.LH T-211.000 6 1 9.5 6.3 150.7 7831 FATEHPUR 132.00* 6 78311 FATEHPUR T-111.000 6 1 18.0 13.0 138.7 7831 FATEHPUR 132.00* 6 78312 FATEPUR T-2 11.000 6 1 18.4 13.0 141.8 7900 SSDIN 66.000* 6 79002 SSDIN T-2 11.000 6 1 6.6 2.5 265.9 7925 CHOTI 66.000* 6 79251 CHOTI T-1 11.000 6 1 15.2 12.5 121.3 7933 FAZALPUR 132.00* 6 79331 FAZALPUR T-111.000 6 1 13.9 13.0 107.3 7933 FAZALPUR 132.00* 6 79332 FAZALPUR T-211.000 6 1 19.3 13.0 148.2 7935 DAJAL 66.000* 6 79351 DAJAL T-1 11.000 6 1 6.5 6.3 103.0 7951 RAJANPUR 132.00* 6 79512 RAJANPUR T-211.000 6 1 17.1 13.0 131.9 7965 JLALPRPW 66.000* 6 79651 JLALPRPW T-111.000 6 1 15.7 13.0 120.5 7965 JLALPRPW 66.000* 6 79652 JLALPRPW T-211.000 6 1 13.9 13.0 107.2 7965 JLALPRPW 66.000* 6 79653 JLALPRPW T-311.000 6 1 5.9 5.0 117.4 7965 JLALPRPW 66.000* 6 79654 JLALPRW T-4 11.000 6 1 5.3 5.0 106.2 7974 UCH.SHRF 132.00* 6 79741 UCH.SHRF T-211.000 6 1 14.3 13.0 110.0 7974 UCH.SHRF 132.00* 6 79742 UCH.SHRF T-311.000 6 1 13.1 13.0 100.7 7981 ALI PUR 132.00* 6 79811 ALI PUR T-1 11.000 6 1 18.3 13.0 141.1 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), many system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. 504760-01-A4 37 Disco Transmission Expansion Plan National Power System Expansion Plan Sub Station Transformer NO. KV Chishtian Dunyapur Garah More Hasilpur Jehanian Khanewal Karampur Karoor Pacca Mailsi Noorpur Sheikh Fazal Sahuka T-1 T-3 T-1 T-2 T-2 T-2 T-2 T-1 T-3 T-2 T-2 T-2 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 Chak 83/12.L. T-1 Head Sidhnai 2015 Proposed MVA Associated Transmission Lines Augmentation Augmentation Augmentation Augmentation Augmentation Augmentation Augmentation Augmentation Extension Augmentation Augmentation Extension 26 40 26 26 40 40 13 40 26 26 26 26 66/11 Conversion 26 kv Mian Channu-Chak 83/12 L, 10 KM Lynx SDT T-1 66/11 Conversion 13 Kabirwala - Head Sidhnai 35 km Lynx K.P.Tamewali T-1 66/11 Conversion 13 Lohanra - K.P.Tamewali D/C 25 km Rail Noorsar T-1 66/11 Conversion 13 Chishtian - Bahawalnagar S/C, I/O at Noorsar 26 KM Lynx Ahmad Pur East Baghdad-ul-Jadid Dammar Wala Feroza Gujrat South Jamal Din Wali Jalal Pur Pirwala Jatoi Kabirwala Kabirwala Khanewal Road Khan Pur Lodhran Layyah MESCO Multan MESCO Multan M.W.Qureshian Mahra Khas Rahim Yar Khan I Rahim Yar Khan I Rahim Yar Khan I T-2 T-1 T-1 T-1 T-2 T-2 T-3 T-1 T-1 T-2 T-2 T-1 T-2 T-1 T-2 T-3 T-2 T-1 T-1 T-2 T-3 132/11 132/11 132/11 132/11 132/11 132/11 66/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 132/11 Augmentation Augmentation Augmentation Augmentation Augmentation Extension Augmentation Augmentation Augmentation Augmentation Augmentation Augmentation Extension Augmentation Augmentation Augmentation Extension Augmentation Augmentation Augmentation Augmentation 40 26 13 26 26 26 13 13 40 40 40 40 26 40 40 40 26 26 40 40 40 Reinforcements to overcome (N-0) violations; continue... 504760-01-A4 38 Disco Transmission Expansion Plan National Power System Expansion Plan Sub Station Transformer NO. KV Rahim Yar Khan II Rojhan Rajan Pur Shujabad Taunsa Uch Sharif T-1 T-1 T-2 T-2 T-1 T-1 132/11 132/11 132/11 132/11 132/11 132/11 Ali Pur T-1 Dajal 2015 Proposed MVA Associated Transmission Lines Augmentation Augmentation Augmentation Augmentation Augmentation Augmentation 40 26 26 40 26 26 66/11 Conversion 26 T-1 66/11 Augmentation 13 Fazil pur T-1 66/11 Conversion 13 Jampur - Fazalpur 37 KM Lynx S/C Fateh Pur T-1 66/11 Conversion 26 Chowk Azam - Fateh Pur 42 KM Lynx S/c Head Rajkan T-1 66/11 Conversion 26 Yazman - Head Rajkan 25 KM Lynx S/C Kot Sultan T-1 66/11 Conversion 26 Kot Addu -T Sul - Kot Sultan43 + 2 km Lynx S/C Karoor Lal Eason T-1 66/11 Conversion 26 T-Kot Sultan - Karoor Lal Eason 57 km Lynx S/c Lal Sohanra T-1 66/11 Conversion 13 D/C Bahawal Pur New - Lal Sohanra 50 KM Rail Marrot Shah Sadar Din T-1 T-2 66/11 66/11 Conversion Augmentation 26 13 Uch Sharif (kot Khalifa) T-1 66/11 Conversion 26 A.P.East - Uch Sharif - Alipur 20+30 KM Lynx Yazman T-1 66/11 Conversion 26 Bahawalpur New - Yazman D/C 35 KM Rail WAPDA Town WAPDA Town Qasim Bagh Musavirk T-1 132/11 T-2 132/11 T-1 132/11 T-1 132/11 Augmentation Augmentation Augmentation Augmentation 60 60 40 26 Uch Shariff - Ali Pur 26 KM Lynx S/C Reinforcements to overcome (N-0) violations; continue... 504760-01-A4 39 Disco Transmission Expansion Plan National Power System Expansion Plan Transmission Line Type KM Bahawalpur New - 132 kv Bahawal Pur Reconductoring from lynx to rail 7 Bahawal Pur New- Yazman D/C new line with Rail conductor 35 Yazman- Maroot SDT new line with Greeley conductor 66 T-Kot Sultan- Karoor Lal Eason SDT 57 km New line with Lynx Conductor 57 Kot Addu - T-Kot Sultan – Kot Sultan SDT New line with Lynx Conductor 47 T Faqirwali-Fort Abbas SDT New line with Lynx conductor 29 KAPCO – Shahdan Lund SDT New line with rail. 38 KAPCO – Chowk Azam SDT New line with rail 68 Shahdan Lund – Chowk Azam SDT New line with rail. 30 With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: One severe line outage would lead to area collapse was recorded. -------------------------------------------------------------------------------- CONTINGENCY LEGEND: LABEL SINGLE 212 EVENTS : OPEN LINE FROM BUS 7460 [D.G.KHAN 132.00] TO BUS 7930 [JAMPUR 132.00] CKT 1 -------------------------------------------------------------------------------- Out-of-Limits Bus Voltages: A few low voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY <-------- B U S --------> V-CONT V-INIT V-MAX V-MIN SINGLE 92 7006 HEAD SIDHNAI132.00 0.89039 0.99242 1.10000 0.91000 SINGLE 92 7030 KABIRWLA 132.00 0.89039 0.99242 1.10000 0.91000 SINGLE 92 7032 MP.PAHOR 132.00 0.87851 0.98329 1.10000 0.91000 SINGLE 95 7055 T-C.211 132.00 0.88327 0.98928 1.10000 0.91000 SINGLE 95 7060 CHAK.211 132.00 0.88028 0.98680 1.10000 0.91000 SINGLE 95 7070 MAILSI 132.00 0.88851 0.98226 1.10000 0.91000 SINGLE 196 7436 T-PARCO 132.00 0.90912 0.97008 1.10000 0.91000 SINGLE 196 7951 RAJANPUR 132.00 0.88782 0.95116 1.10000 0.91000 SINGLE 197 7435 PARCO 132.00 0.90813 0.97044 1.10000 0.91000 SINGLE 197 7436 T-PARCO 132.00 0.90811 0.97008 1.10000 0.91000 504760-01-A4 40 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 197 7951 RAJANPUR 132.00 0.88675 0.95116 1.10000 0.91000 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 92 : OPEN LINE FROM BUS 7030 [KABIRWLA 132.00] TO BUS 7109 [P.GAIB-2 132.00] CKT 1 SINGLE 95 : OPEN LINE FROM BUS 7050 [JEHANIAN 132.00] TO BUS 7055 [T-C.211 132.00] CKT 1 SINGLE 196 : OPEN LINE FROM BUS 7435 [PARCO 132.00] TO BUS 7436 [T-PARCO 132.00] CKT 1 SINGLE 197 : OPEN LINE FROM BUS 7435 [PARCO 132.00] TO BUS 7470 [ROJHAN 132.00] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES AND INTERFACES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 6666 MULTAN-N 132.00 7250*MN.KH.RD 132.00 2 SINGLE 74 202.0 248.9 118.8 % 6666 MULTAN-N 132.00 7250*MN.KH.RD 132.00 1 SINGLE 75 202.0 248.9 118.8 7030*KABIRWLA 132.00 7109 P.GAIB-2 132.00 1 SINGLE 89 112.0 107.3 100.2 7100 P.GAIB-1 132.00 7280*MN.VR.RD 132.00 2 SINGLE 104 89.0 94.9 103.4 7140*BHAWALPR 132.00 7145 BPUR CANTT 132.00 1 SINGLE 117 112.0 121.9 106.7 7139 B.W.P-N 132.00 7140*BHAWALPR 132.00 2 SINGLE 118 112.0 147.2 129.8 7139 B.W.P-N 132.00 7170*AHMDPR.E 132.00 2 SINGLE 120 112.0 132.3 117.5 7139 B.W.P-N 132.00 7140*BHAWALPR 132.00 2 SINGLE 124 112.0 122.9 107.8 7300*KAPCO 132.00 7330 MZFRGARH 132.00 1 SINGLE 171 112.0 121.4 103.3 7300*KAPCO 132.00 7400 TAUNSA 132.00 1 SINGLE 176 112.0 129.3 109.9 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 74 : OPEN LINE FROM BUS 6666 [MULTAN-N 132.00] TO BUS 7250 [MN.KH.RD 132.00] CKT 1 SINGLE 75 : OPEN LINE FROM BUS 6666 [MULTAN-N 132.00] TO BUS 7250 [MN.KH.RD 132.00] CKT 2 SINGLE 89 : OPEN LINE FROM BUS 7020 [KHANEWAL 132.00] TO BUS 7030 [KABIRWLA 132.00] CKT 1 SINGLE 104 : OPEN LINE FROM BUS 7100 [P.GAIB-1 132.00] TO BUS 7280 [MN.VR.RD 132.00] CKT 1 SINGLE 117 : OPEN LINE FROM BUS 7139 [B.W.P-N 132.00] TO BUS 7140 [BHAWALPR 132.00] CKT 2 SINGLE 118 : OPEN LINE FROM BUS 7139 [B.W.P-N 132.00] TO BUS 7145 [BPUR CANTT 132.00] CKT 1 SINGLE 120 : OPEN LINE FROM BUS 7139 [B.W.P-N 132.00] TO BUS 7170 [AHMDPR.E 132.00] CKT 1 SINGLE 124 : OPEN LINE FROM BUS 7140 [BHAWALPR 132.00] TO BUS 7145 [BPUR CANTT 132.00] CKT 1 SINGLE 171 : OPEN LINE FROM BUS 7300 [KAPCO 132.00] TO BUS 7321 [T-GUJRAT 132.00] CKT 1 SINGLE 176 : OPEN LINE FROM BUS 7300 [KAPCO 132.00] TO BUS 7395 [SHAD.LND 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. 504760-01-A4 41 Disco Transmission Expansion Plan National Power System Expansion Plan No. Transmission Line Additions/Modification KM 1 Multan New to Multan Khanewal Double circuit Rail to twin bundle rail 1.7 2 Qasim Pur – Vehari Rd Multan 2nd circuit stringing 7 km with Lynx 7 4 132 kv Bahawalpur New‐ Bahawalpur Cantt D/C 7 km with rail conductor. 5 132 Bahawalpur Cantt – Bahawalpur D/C 6 km with Greeley conductor. 6 6 Piran Gaib – Qasim Pur Reconductoring with Greeley 10 km. 10 7 KAPCO – Muzaffargarh Reconductoring 49 km Lynx to Greeley. 49 8 KAPCO – Taunsa Reconductoring 56 km Lynx to Greeley. 56 9 Pirangaib II – Khanewal Reconductoring 44 km Lynx to Greeley. 44 No. Substation Capacitors 1 132 Kv Rajanpur 12 MVAR 2 132 kv Mailsi 24 MVAR 3 132 kv Jampur 36 MVAR 7 With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed MEPCO base case for Year2015 with the above mentioned system reinforcements are given in Appendix-3 (spread over 7 Sheets). 7.1.7 “HESCO & SEPCO” Distribution System for Year-2015 The Year-2015 base case was studied based on the planning criteria described in Section 12.5. The total load of HESCO and SEPCO by Year-2015 is 2,607 MW. The load flow single line diagrams of the full HESCO and SEPCO systems are shown in Appendix-2 (spread over 10 Sheets) along with the system additions from Year-2010 to Year-2015. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], many voltage problems were recorded within the HESCO and SEPCO systems as given below. 504760-01-A4 42 Disco Transmission Expansion Plan National Power System Expansion Plan -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 7999 GUDDU-2 132.00 7 1.0600 139.92 8000 GUDDU-1 132.00 7 1.0550 139.26 8029 LIBERTY 132.00 7 1.0500 138.60 8089 ROHRI-NW 132.00 7 1.0595 139.85 8090 ROHRI 132.00 7 1.0509 138.72 8101 KANDRA-P 132.00 7 1.0562 139.41 8160 MORO 132.00 7 1.0583 139.69 8169 WAHI PANDHI 132.00 7 1.0973 144.84 8170 DADU NEW 132.00 7 1.1038 145.71 8172 JOHI 132.00 7 1.0995 145.14 8174 SEHWAN 132.00 7 1.0643 140.49 8175 BHAN SAEDABD132.00 7 1.0877 143.58 8176 SHALAMNI 132.00 7 1.0624 140.23 8177 PARCO 132.00 7 1.0809 142.68 8180 KHANOT 132.00 7 1.0730 141.64 8219 SHIKAR-N 132.00 7 1.0847 143.18 8220 SHIKARPR 132.00 7 1.0796 142.50 8222 GHARI YASIN 132.00 7 1.0537 139.08 8260 MEHAR 132.00 7 1.0520 138.87 8261 FAREEDABAD 132.00 7 1.0506 138.68 8270 KPN SHAH 132.00 7 1.0527 138.96 8280 DADU OLD 132.00 7 1.0975 144.87 8450 LARKANA 66.000 7 1.0956 72.310 8490 SHADADKT 66.000 7 1.0820 71.413 9040 SANGHAR 132.00 7 1.0524 138.91 9041 KANDARI 132.00 7 1.0611 140.07 9090 HALAROAD 132.00 7 1.0784 142.35 9095 GHANGHRA MOR132.00 7 1.0726 141.58 9100 TANDOJAM 132.00 7 1.0719 141.49 9119 T/CHAMBER 132.00 7 1.0706 141.32 9120 T.A.YAR 132.00 7 1.0705 141.30 9121 CHAMBER 132.00 7 1.0701 141.26 9125 SULTNABD 132.00 7 1.0675 140.91 9130 MIRPURKHAS 132.00 7 1.0675 140.91 9131 M.KHS.NW 132.00 7 1.0789 142.42 9150 PHULLELI 132.00 7 1.0741 141.79 9159 HYD-TMRD 132.00 7 1.0749 141.89 9160 HYDNTPS 132.00 7 1.0697 141.20 9163 KOHSAR 132.00 7 1.0628 140.28 9170 ZEALPAKC 132.00 7 1.0695 141.17 9180 LATIFABAD 132.00 7 1.0694 141.17 9190 KOTRI SITE 132.00 7 1.0671 140.85 9200 KOTRI 132.00 7 1.0700 141.24 9220 T.M.KHAN 132.00 7 1.0549 139.25 9225 JHIRK 132.00 7 1.0579 139.64 9230 JHAMPIR 132.00 7 1.0586 139.74 9235 SHAKH BHRKO 132.00 7 1.0531 139.01 9256 NTDC GHARO 220.00 7 1.0526 231.57 9270 MIRPURSK 132.00 7 1.0502 138.62 9390 LAKHRA 132.00 7 1.0789 142.41 9400 JAMSHORO NEW132.00 7 1.0836 143.03 9410 QASIMABAD-I 132.00 7 1.0590 139.78 9411 HILLTOP 132.00 7 1.0562 139.42 9415 QASIMABAD-II132.00 7 1.0782 142.32 9420 JAMSRO OLD 132.00 7 1.0798 142.54 9425 NOORIABAD 132.00 7 1.0543 139.17 9428 NTDC JHAMPIR132.00 7 1.0592 139.81 9430 GULSHN SHBZ 132.00 7 1.0724 141.55 9440 KALUKUHR 132.00 7 1.0527 138.96 9441 SONEX 132.00 7 1.0527 138.96 9442 SOUTH-CF 132.00 7 1.0528 138.96 9445 D.B.CMNT 132.00 7 1.0527 138.96 9446 ESA-CF 132.00 7 1.0501 138.62 9447 T.B KHAN 132.00 7 1.0506 138.68 9455 MATIARI 132.00 7 1.0559 139.38 9494 SAMARO 66.000 7 1.0799 71.276 9498 UMARKOT 66.000 7 1.0727 70.799 9502 CHACHRO 66.000 7 1.0646 70.267 9506 PITHORO 66.000 7 1.0711 70.693 9507 MITHI 66.000 7 1.0603 69.981 9526 DIPLO 66.000 7 1.0518 69.419 9534 SANGHAR 66.000 7 1.0670 70.419 9536 JAMRAOHD 66.000 7 1.0515 69.399 9542 MIRPURKH 66.000 7 1.0543 69.585 9595 KUNRI 66.000 7 1.0544 69.587 81601 1 11.000 7 1.0574 11.631 81691 1 11.000 7 1.0686 11.754 81801 1 11.000 7 1.0557 11.612 82201 1 11.000 7 1.0559 11.614 82202 2 11.000 7 1.0639 11.703 82401 1 11.000 7 1.0691 11.760 82621 1 11.000 7 1.0639 11.702 82802 2 11.000 7 1.0633 11.697 83602 2 11.000 7 1.0521 11.573 83603 3 11.000 7 1.0689 11.757 90402 2 11.000 7 1.0549 11.604 90602 2 11.000 7 1.0853 11.938 91001 1 11.000 7 1.0593 11.653 91201 1 11.000 7 1.0740 11.814 91202 2 11.000 7 1.0537 11.591 91211 1 11.000 7 1.0622 11.685 91501 1 11.000 7 1.0507 11.558 91502 2 11.000 7 1.0777 11.855 91902 2 11.000 7 1.0618 11.680 92202 2 11.000 7 1.0616 11.677 92301 1 11.000 7 1.0608 11.669 94201 1 11.000 7 1.0663 11.729 94202 2 11.000 7 1.0763 11.839 94301 1 11.000 7 1.0698 11.768 94401 1 11.000 7 1.0645 11.709 504760-01-A4 43 Disco Transmission Expansion Plan National Power System Expansion Plan 95021 1 11.000 7 1.0511 11.562 BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 8300 ROHRI 66.000 7 0.9137 60.302 8310 NARA C-1 66.000 7 0.4752 31.362 8320 NARA C-2 66.000 7 0.3440 22.706 8330 ROHRI CMT 66.000 7 0.9129 60.253 8340 RASULABD 66.000 7 0.4037 26.644 8345 THARI MIRWAH66.000 7 0.3456 22.810 81002 2 11.000 7 0.9486 10.435 81202 2 11.000 7 0.9493 10.442 83101 1 11.000 7 0.4671 5.138 83102 2 11.000 7 0.4560 5.016 83201 1 11.000 7 0.2895 3.185 83202 2 11.000 7 0.3224 3.547 83401 1 11.000 7 0.3703 4.074 83402 2 11.000 7 0.3160 3.476 83451 1 11.000 7 0.3211 3.532 83452 2 11.000 7 0.3171 3.488 83453 3 11.000 7 0.2910 3.200 -------------------------------------------------------------------------------- Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 8050 K.P.MEHR 132.00* 7 80501 1 11.000 7 1 20.9 13.0 160.5 8080 PANUAKIL 132.00* 7 80801 1 11.000 7 1 27.5 26.0 105.8 8089 ROHRI-NW 132.00 7 8090 ROHRI 132.00* 7 1 131.7 112.0 117.6 8089 ROHRI-NW 132.00 7 8090 ROHRI 132.00* 7 2 131.7 112.0 117.6 8090 ROHRI 132.00* 7 8300 ROHRI 66.000 7 1 109.5 37.5 292.1 8100 KHAIRPUR 132.00* 7 81001 1 11.000 7 1 28.7 26.0 110.4 8100 KHAIRPUR 132.00* 7 81002 2 11.000 7 1 30.2 26.0 116.1 8110 KOT DIJI 132.00* 7 81101 1 11.000 7 1 15.6 13.0 120.1 8140 KANDIARO 132.00* 7 81402 2 11.000 7 1 26.5 26.0 101.8 8160 MORO 132.00* 7 81601 1 11.000 7 1 31.1 26.0 119.8 8160 MORO 132.00* 7 81602 2 11.000 7 1 9.6 7.5 128.2 8172 JOHI 132.00* 7 81721 1 11.000 7 1 13.2 13.0 101.8 8175 BHAN SAEDABD132.00* 7 81751 1 11.000 7 1 16.7 13.0 128.5 8190 KANDH KOT 132.00* 7 81901 1 11.000 7 1 13.8 13.0 106.3 8190 KANDH KOT 132.00* 7 81902 2 11.000 7 1 27.7 26.0 106.4 8200 THULL 132.00* 7 82002 2 11.000 7 1 14.6 13.0 112.6 8210 KARAMPUR 132.00* 7 82101 1 11.000 7 1 17.9 13.0 137.8 8219 SHIKAR-N 132.00* 7 82191 1 11.000 7 1 17.8 13.0 136.9 8219 SHIKAR-N 132.00* 7 82192 2 11.000 7 1 17.8 13.0 136.9 8240 RATODERO 132.00 7 82401 1 11.000* 7 1 13.7 13.0 105.3 8240 RATODERO 132.00* 7 82402 2 11.000 7 1 15.4 13.0 118.7 8260 MEHAR 132.00* 7 82601 1 11.000 7 1 28.4 26.0 109.1 8270 KPN SHAH 132.00* 7 82702 2 11.000 7 1 14.0 13.0 107.9 8275 RHMNI NAGAR 132.00* 7 82751 1 11.000 7 1 18.2 13.0 140.0 8300 ROHRI 66.000 7 66.000* 7 1 54.0 39.0 138.3 8470 QAMBER 66.000* 7 84702 2 11.000 7 1 14.1 13.0 108.7 8480 WARAH 66.000* 7 84801 1 11.000 7 1 14.3 13.0 109.8 504760-01-A4 8340 RASULABD 44 Disco Transmission Expansion Plan National Power System Expansion Plan 8500 GHARI KHAIRO66.000* 7 85001 1 11.000 7 1 9.1 7.5 121.4 8520 RADHAN 66.000* 7 85201 1 11.000 7 1 16.1 13.0 123.6 9090 HALAROAD 132.00* 7 90901 1 11.000 7 1 32.6 26.0 125.3 9090 HALAROAD 132.00* 7 90902 2 11.000 7 1 32.0 26.0 123.1 9095 GHANGHRA MOR132.00* 7 90951 1 11.000 7 1 31.6 26.0 121.7 9130 MIRPURKHAS 132.00* 7 91303 3 11.000 7 1 29.1 26.0 111.8 9140 SAMARO 132.00* 7 91401 1 11.000 7 1 14.3 13.0 110.3 9150 PHULLELI 132.00* 7 91501 1 11.000 7 1 30.4 26.0 116.8 9150 PHULLELI 132.00 7 91502 2 11.000* 7 1 29.7 26.0 114.1 9160 HYDNTPS 132.00* 7 91601 1 11.000 7 1 32.6 26.0 125.3 9160 HYDNTPS 132.00* 7 91602 2 11.000 7 1 30.6 26.0 117.8 9180 LATIFABAD 132.00* 7 91801 1 11.000 7 1 42.7 40.0 106.6 9180 LATIFABAD 132.00* 7 91802 2 11.000 7 1 43.1 40.0 107.6 9240 THATTA 132.00* 7 92402 2 11.000 7 1 13.4 13.0 103.3 9410 QASIMABAD-I 132.00* 7 94101 1 11.000 7 1 43.4 40.0 108.5 9410 QASIMABAD-I 132.00* 7 94102 2 11.000 7 1 26.6 26.0 102.4 9410 QASIMABAD-I 132.00* 7 94103 3 11.000 7 1 30.9 26.0 119.0 9410 QASIMABAD-I 132.00* 7 94104 4 11.000 7 1 30.9 26.0 119.0 9420 JAMSRO OLD 132.00* 7 94201 1 11.000 7 1 13.4 13.0 103.4 9420 JAMSRO OLD 132.00 7 94202 2 11.000* 7 1 13.3 13.0 102.6 9455 MATIARI 132.00* 7 94551 1 11.000 7 1 14.9 13.0 115.0 9479 DIGRI 132.00* 7 94791 1 11.000 7 1 14.3 13.0 110.3 9516 KALOI 66.000* 7 95161 1 11.000 7 1 7.8 5.0 155.9 9530 ISLAMKOT 66.000* 7 95301 1 11.000 7 1 2.9 2.5 117.8 9536 JAMRAOHD 66.000* 7 95361 1 11.000 7 1 3.8 2.5 150.8 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), many system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. Under HESCO: 1. Construction of 132KV SDT Transmission Line from New Jamshoro (9400) to 132KV Grid Station Hala Road (9090) with Greeley Conductor (Express circuit). 2. Second Circuit from 132KV T.M Khan Grid Station (9220) to 132KV New Matli Grid Station (9471) with Greeley Conductor. 3. Addition of another 1x10/13 MVA Power Transformers at 132Kv Grid Station Digri (9479). 4. Installation of 4.8 MVAR Capacitor Bank instead of 1.2 MVAR at T-1 of 132KV Grid Station Badin (9485) to boost the voltage for other connected Grid Stations. 5. Augmentation of T-1 Power Transformer with 40MVA at 132KV Grid Station NTPS (9160), Hyderabad. 504760-01-A4 45 Disco Transmission Expansion Plan National Power System Expansion Plan 6. Addition of 3rd 40 MVA Power Transformer, at 132KV Grid Station Latifabad (9180), (after addition of this, all Power Transformers will be 40MVA). 7. Augmentation of 66KV Grid Station Kaloi (9516) with 10/13 MVA Power Transformer. 8. Addition of 3rd 20/26 MVA Power Transformer Bay at 132KV Grid Station Phuelleli (9150). 9. Addition of second 20/26 MVA Power Transformer Bay at 132KV Grid Station Ghanghra Mori (9095). 10. Addition of second 10/13 MVA Power Transformer Bay at 132KV Grid Station Noukot (9501). 11. Installation of Capacitor Bank (24 MVAR) at 132Kv Grid Station Noukot (9501). 12. Augmentation of Power Transformer at Islamkot Grid Station (9530) with 5 MVA Transformer. 13. Installation of 3rd Power Transformer Bay with 20/26 MVA at 220/132 KV Grid Station Hala Road (9090), or construct another Grid Station in the vicinity of said Grid Station for shifting of load. 14. Augmentation of 2xPower Transformers with 40 MVA at 132 KV Grid Station Qasimabad-I (9410). 15. Addition of second Power Transformer of 10/13 MVA at 132 KV Grid Station Matiari (9455). 16. Augmentation of Power Transformer with 40 MVA at 132KV Mirpur Khas Grid Station (9130). 17. Augmentation of 66KV Grid Station Jamro Head with 5 MVA Power Transformer (9536). 18. Augmentation of both 10/13 MVA Power Transformers with 20/26 MVA at 132 KV Grid Station (9420) Old Jamshoro. 504760-01-A4 46 Disco Transmission Expansion Plan National Power System Expansion Plan Under SEPCO: 1. Conversion of 66KV Grid Station Qamber (8251) with 2x20/26 MVA Power Transformers & installation of 2.4 MVAR capacitor Banks. 2. Conversion of 66KV Grid Station Warah (8252) with 1x20/26 MVA Power Transformer & installation of 6.0 MVAR capacitor Banks. 3. Conversion of 66KV Grid Station Dokri (8459) with 2x10/13 MVA Power Transformers & installation of 3.0 MVAR capacitor Banks. 4. Conversion of 66KV Grid Station Radhan (8265) with 1x20/26 MVA Power Transformer & installation of 4.8 MVAR capacitor Banks. 5. Addition of 1x20/26 MVA Power Transformer at 132KV Grid Station Mehar (8260). 6. Construction of new 132 KV SDT Transmission Line from Qamber Grid Station (8251) to Shahdadkot Grid Station (8485) with Lynx Conductor. 7. Augmentation of one Power Transformer at 132KV Grid Station Ratodero (8240). 8. Conversion of 66KV Grid Station Rasulabad (8341) with 2x10/13 MVA Power Transformers & installation of one 132/66Kv Power Transformer (37.5 MVA) for 66KV Grid Station Thari Mir Wah (8345). 9. Installation of Capacitor Banks of 12 MVAR at 66KV Grid Station Nara-I (8310) (Grid Station Side). 10. Installation of Capacitor Banks of 4.8 MVAR at 66KV Grid Station Nara-I (8310) for both Power Transformers. 11. Installation of Capacitor Banks 3.6 MVAR at T-1 & 2.4 MVAR at T-2 of 66KV Grid Station Nara-II (8320) Grid Station. 12. Augmentation of both Power Transformers of new 220/132KV Grid Station Shikarpur (8219) with 20/26 MVA Power Transformers or construct another Grid Station in the vicinity of said Grid Station for shifting of load. 13. Augmentation of T-2 Power Transformer of 132KV Grid Station Pano Akil (8080) with 20/26 MVA. 504760-01-A4 47 Disco Transmission Expansion Plan National Power System Expansion Plan 14. Augmentation of Power Transformer with 20/26 MVA at 132KV Grid Station Karmpur (8210). 15. Augmentation of Power Transformer with 20/26 MVA at 132KV Grid Station Khanpur Mehar (8050). 16. Augmentation of Power Transformer with 20/26 MVA at 132KV Grid Station Thull (8200). 17. Augmentation of Power Transformer with 20/26 MVA at 132KV Grid Station Khandkot (8190). 18. Augmentation of Power Transformer with 20/26 MVA at 132KV Grid Station Bhan Saeedabad (8175). 19. Augmentation of Power Transformer with 20/26 MVA at 132KV Grid Station Johi (8172). 20. Augmentation of Power Transformer with 20/26 MVA at 132KV Grid Station Rehmani Nagar (8275). 21. Augmentation of Power Transformer with 20/26 MVA at 132KV Grid Station K.P.N Shah (8270). 22. Augmentation of T-2 Power Transformer with 20/26 MVA at 132KV Grid Station Moro (8160). 23. Addition of 3rd Power Transformer Bay with 20/26 MVA at 132 KV Grid Station Kandario (8140). 24. Addition of 3rd Power Transformer Bay with 40 MVA at 132 KV Grid Station Khairpur (8100). 25. Augmentation of Power Transformer with 20/26 MVA at 132KV Grid Station Kot Diji (8110). 26. Construction of 2nd circuit from Dadu New (8170) to Dadu Old Grid Station (8280) with Greeley Conductor. 27. Construction of 132KV D/C Transmission Line from New Rohri (8089) to Sukkur Site (8237) Grid Station with Greeley Conductor. 504760-01-A4 48 Disco Transmission Expansion Plan National Power System Expansion Plan 28. 132KV SDT Transmission Line feed for Qambar (8251) Grid Station with Lynx Conductor. 29. 132KV SDT Transmission Line feed for Warah (8252) Grid Station with Lynx Conductor. 30. 132KV SDT Transmission Line feed for Dokri (8459) Grid Station with Lynx Conductor. 31. 132KV SDT Transmission Line feed for Radhan (8265) Grid Station with Lynx Conductor. 32. 132KV D/C Transmission Line feed for Rasoolabad (8341) Grid Station with Lynx Conductor. With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: Two severe line outages would lead to area collapse were recorded. -------------------------------------------------------------------------------- CONTINGENCY LEGEND: LABEL EVENTS SINGLE 228 : OPEN LINE FROM BUS 9471 [MATLI NEW 132.00] TO BUS 9483 [TALHAR 132.00] CKT 1 SINGLE 230 : OPEN LINE FROM BUS 9483 [TALHAR 132.00] TO BUS 9485 [BADIN 132.00] CKT 1 -------------------------------------------------------------------------------- Out-of-Limits Bus Voltages: Many voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN BASE CASE <-------- B U S --------> 8320 NARA C-2 66.000 0.88993 0.88993 1.10000 0.90000 SINGLE 25 8230 ARIAN RD 132.00 0.84769 1.01433 1.10000 0.90000 SINGLE 25 8231 SUKERCTY 132.00 0.84277 1.01057 1.10000 0.90000 SINGLE 25 8237 SUKURSTE 132.00 0.83388 1.02157 1.10000 0.90000 SINGLE 37 8345 THARI MIRWAH66.000 0.88777 0.94991 1.10000 0.90000 504760-01-A4 49 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 44 8310 NARA C-1 66.000 0.89386 0.93057 1.10000 0.90000 SINGLE 44 8360 PAD IDAN 66.000 0.87555 0.95706 1.10000 0.90000 SINGLE 46 8142 NEW JATOI 132.00 0.86846 0.99186 1.10000 0.90000 SINGLE 46 8160 MORO 132.00 0.85137 0.99578 1.10000 0.90000 SINGLE 46 8310 NARA C-1 66.000 0.88601 0.93057 1.10000 0.90000 SINGLE 49 8174 SEHWAN 132.00 0.87000 0.99903 1.10000 0.90000 SINGLE 49 8175 BHAN SAEDABD132.00 0.84631 1.01711 1.10000 0.90000 SINGLE 49 8177 PARCO 132.00 0.85191 1.01161 1.10000 0.90000 SINGLE 53 9002 DAULTPUR 132.00 0.89173 1.00676 1.10000 0.90000 SINGLE 70 8200 THULL 132.00 0.87464 0.97992 1.10000 0.90000 SINGLE 70 8205 JACOBABAD 132.00 0.86461 0.98773 1.10000 0.90000 SINGLE 70 8215 JACOBABAD-II132.00 0.86414 0.98557 1.10000 0.90000 SINGLE 76 8200 THULL 132.00 0.84044 0.97992 1.10000 0.90000 SINGLE 76 8205 JACOBABAD 132.00 0.82479 0.98773 1.10000 0.90000 SINGLE 76 8215 JACOBABAD-II132.00 0.82483 0.98557 1.10000 0.90000 SINGLE 76 8221 HAMAYOON 132.00 0.82010 1.00481 1.10000 0.90000 SINGLE 86 8241 MIROKHAN 132.00 0.84813 0.98358 1.10000 0.90000 SINGLE 86 8251 QAMBER 132.00 0.89374 0.96580 1.10000 0.90000 SINGLE 86 8252 WARAH 132.00 0.88359 0.95755 1.10000 0.90000 SINGLE 86 8485 SHADADKT 132.00 0.85183 0.97388 1.10000 0.90000 SINGLE 86 8490 SHADADKT 66.000 0.86566 1.00007 1.10000 0.90000 SINGLE 86 8500 GHARI KHAIRO66.000 0.81482 0.96248 1.10000 0.90000 SINGLE 90 8485 SHADADKT 132.00 0.88583 0.97388 1.10000 0.90000 SINGLE 90 8500 GHARI KHAIRO66.000 0.85678 0.96248 1.10000 0.90000 SINGLE 96 8251 QAMBER 132.00 0.89513 0.96580 1.10000 0.90000 SINGLE 96 8252 WARAH 132.00 0.88502 0.95755 1.10000 0.90000 SINGLE 127 9025 JAM SAHIB 132.00 0.89962 0.96326 1.10000 0.90000 SINGLE 127 9030 SHAHPURC 132.00 0.88399 0.97736 1.10000 0.90000 SINGLE 150 9080 TANDOADM 132.00 0.89612 0.95408 1.10000 0.90000 SINGLE 165 9501 NOUKOT 132.00 0.89820 0.96762 1.10000 0.90000 SINGLE 165 9505 MITHI 132.00 0.88401 0.95535 1.10000 0.90000 SINGLE 169 9494 SAMARO 66.000 0.81300 1.01682 1.10000 0.90000 SINGLE 169 9506 PITHORO 66.000 0.80043 1.00732 1.10000 0.90000 SINGLE 169 9510 NABISRRD 66.000 0.84541 0.99637 1.10000 0.90000 SINGLE 169 9595 KUNRI 66.000 0.82019 0.99950 1.10000 0.90000 SINGLE 171 9485 BADIN 132.00 0.88617 0.97295 1.10000 0.90000 SINGLE 171 9486 BADIN 66.000 0.83128 1.02546 1.10000 0.90000 SINGLE 171 9487 T/T.BAGO 66.000 0.74202 1.00370 1.10000 0.90000 SINGLE 171 9488 TANDO BAGO 66.000 0.73806 1.00094 1.10000 0.90000 SINGLE 171 9489 GOLARCHI 132.00 0.88021 0.96776 1.10000 0.90000 SINGLE 171 9490 KADHAN 66.000 0.82108 1.02112 1.10000 0.90000 SINGLE 171 9494 SAMARO 66.000 0.88672 1.01682 1.10000 0.90000 SINGLE 171 9501 NOUKOT 132.00 0.45901 0.96762 1.10000 0.90000 SINGLE 171 9505 MITHI 132.00 0.43318 0.95535 1.10000 0.90000 SINGLE 171 9506 PITHORO 66.000 0.87547 1.00732 1.10000 0.90000 SINGLE 171 9507 MITHI 66.000 0.44038 1.00206 1.10000 0.90000 SINGLE 171 9510 NABISRRD 66.000 0.73315 0.99637 1.10000 0.90000 SINGLE 171 9514 NOUKOT 66.000 0.55794 1.00791 1.10000 0.90000 SINGLE 171 9515 T-KALOI 66.000 0.58794 0.98849 1.10000 0.90000 SINGLE 171 9516 KALOI 66.000 0.57114 0.97979 1.10000 0.90000 SINGLE 171 9517 T/TJM 66.000 0.54633 1.00165 1.10000 0.90000 SINGLE 171 9518 PANGIRO 66.000 0.59689 0.98837 1.10000 0.90000 SINGLE 171 9519 TJM 66.000 0.54576 1.00131 1.10000 0.90000 SINGLE 171 9526 DIPLO 66.000 0.42390 0.99292 1.10000 0.90000 SINGLE 171 9530 ISLAMKOT 66.000 0.41245 0.98864 1.10000 0.90000 504760-01-A4 50 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 171 9532 NAGRPRKR 66.000 0.40538 0.98686 1.10000 0.90000 SINGLE 171 9595 KUNRI 66.000 0.80057 0.99950 1.10000 0.90000 SINGLE 231 9486 BADIN 66.000 0.83936 1.02546 1.10000 0.90000 SINGLE 231 9487 T/T.BAGO 66.000 0.84354 1.00370 1.10000 0.90000 SINGLE 231 9488 TANDO BAGO 66.000 0.84017 1.00094 1.10000 0.90000 SINGLE 231 9490 KADHAN 66.000 0.82952 1.02112 1.10000 0.90000 SINGLE 231 9515 T-KALOI 66.000 0.89254 0.98849 1.10000 0.90000 SINGLE 231 9516 KALOI 66.000 0.88258 0.97979 1.10000 0.90000 SINGLE 231 9518 PANGIRO 66.000 0.88764 0.98837 1.10000 0.90000 SINGLE 233 9487 T/T.BAGO 66.000 0.87556 1.00370 1.10000 0.90000 SINGLE 233 9488 TANDO BAGO 66.000 0.87233 1.00094 1.10000 0.90000 SINGLE 238 9510 NABISRRD 66.000 0.89542 0.99637 1.10000 0.90000 SINGLE 238 9595 KUNRI 66.000 0.87876 0.99950 1.10000 0.90000 SINGLE 242 9488 TANDO BAGO 66.000 0.89983 1.00094 1.10000 0.90000 SINGLE 242 9514 NOUKOT 66.000 0.83004 1.00791 1.10000 0.90000 SINGLE 242 9515 T-KALOI 66.000 0.83172 0.98849 1.10000 0.90000 SINGLE 242 9516 KALOI 66.000 0.82056 0.97979 1.10000 0.90000 SINGLE 242 9517 T/TJM 66.000 0.82186 1.00165 1.10000 0.90000 SINGLE 242 9518 PANGIRO 66.000 0.83529 0.98837 1.10000 0.90000 SINGLE 242 9519 TJM 66.000 0.82143 1.00131 1.10000 0.90000 SINGLE 248 9515 T-KALOI 66.000 0.83736 0.98849 1.10000 0.90000 SINGLE 248 9516 KALOI 66.000 0.82635 0.97979 1.10000 0.90000 SINGLE 248 9518 PANGIRO 66.000 0.84069 0.98837 1.10000 0.90000 -------------------------------------------------------------------------------Due to the volume of the output, contingency list was omitted. Line/Transformer Overloads: Many line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 8090 ROHRI 132.00 8237*SUKURSTE 132.00 1 BASE CASE 112.0 122.0 106.7 8089 ROHRI-NW 132.00 8090*ROHRI 132.00 1 SINGLE 9 112.0 116.7 100.5 8089 ROHRI-NW 132.00 8090*ROHRI 132.00 2 SINGLE 9 112.0 116.7 100.5 8029 LIBERTY 132.00 8040*MIRPUR M 132.00 1 SINGLE 10 112.0 114.6 100.4 8089 ROHRI-NW 132.00 8090*ROHRI 132.00 2 SINGLE 17 112.0 195.0 167.4 8089 ROHRI-NW 132.00 8090*ROHRI 132.00 1 SINGLE 18 112.0 195.0 167.4 8220 SHIKARPR 132.00 8230*ARIAN RD 132.00 1 SINGLE 25 112.0 154.8 163.1 8100*KHAIRPUR 132.00 8101 KANDRA-P 132.00 2 SINGLE 28 112.0 120.7 105.5 8100*KHAIRPUR 132.00 8101 KANDRA-P 132.00 1 SINGLE 29 112.0 120.7 105.5 8270*KPN SHAH 132.00 8280 DADU OLD 132.00 1 SINGLE 50 112.0 109.5 104.2 8170 DADU NEW 132.00 8280*DADU OLD 132.00 2 SINGLE 51 112.0 120.4 104.9 8170 DADU NEW 132.00 8280*DADU OLD 132.00 1 SINGLE 52 112.0 120.4 104.9 8170 DADU NEW 132.00 8260*MEHAR 132.00 1 SINGLE 106 112.0 116.3 111.0 9090 HALAROAD 132.00 9455*MATIARI 132.00 1 SINGLE 121 112.0 119.1 104.8 9090 HALAROAD 132.00 9455*MATIARI 132.00 1 SINGLE 127 112.0 118.9 105.3 9060*HALA 132.00 9455 MATIARI 132.00 1 SINGLE 139 112.0 119.6 112.3 9090 HALAROAD 132.00 9455*MATIARI 132.00 1 SINGLE 139 112.0 141.3 125.5 504760-01-A4 51 % Disco Transmission Expansion Plan National Power System Expansion Plan 9060*HALA 132.00 1 SINGLE 140 112.0 113.7 107.3 9400 JAMSHORO NEW132.00 132.00 9090 HALAROAD 9410*QASIMABAD-I 132.00 1 SINGLE 148 112.0 155.0 139.9 9060*HALA 132.00 9090 HALAROAD 132.00 1 SINGLE 150 112.0 119.6 114.3 9130*MIRPURKHAS 132.00 9131 M.KHS.NW 132.00 2 SINGLE 163 112.0 148.4 128.9 9130*MIRPURKHAS 132.00 9131 M.KHS.NW 132.00 1 SINGLE 164 112.0 148.4 128.9 9501*NOUKOT 132.00 9514 NOUKOT 66.000 1 SINGLE 169 40.0 40.9 102.4 9140*SAMARO 132.00 9494 SAMARO 66.000 1 SINGLE 171 40.0 54.8 137.0 9485*BADIN 132.00 9486 BADIN 66.000 1 SINGLE 171 37.5 40.6 108.2 9486 BADIN 66.000 9487*T/T.BAGO 66.000 1 SINGLE 171 39.0 30.3 104.8 9494 SAMARO 66.000 9595*KUNRI 66.000 1 SINGLE 171 39.0 40.4 129.4 9510*NABISRRD 66.000 9595 KUNRI 66.000 1 SINGLE 171 39.0 29.0 101.4 9095*GHANGHRA MOR132.00 9159 HYD-TMRD 132.00 1 SINGLE 173 112.0 121.3 103.3 9200 KOTRI 132.00 9230*JHAMPIR 132.00 1 SINGLE 187 112.0 117.5 100.1 9200 KOTRI 132.00 9230*JHAMPIR 132.00 1 SINGLE 188 112.0 125.5 106.9 9200 KOTRI 132.00 9230*JHAMPIR 132.00 1 SINGLE 189 112.0 125.5 106.9 9200 KOTRI 132.00 9230*JHAMPIR 132.00 1 SINGLE 200 112.0 121.5 103.4 9200 KOTRI 132.00 9230*JHAMPIR 132.00 1 SINGLE 206 112.0 118.3 100.8 9090 HALAROAD 132.00 9410*QASIMABAD-I 132.00 1 SINGLE 209 112.0 154.3 137.2 9200 KOTRI 132.00 9230*JHAMPIR 132.00 1 SINGLE 214 112.0 130.1 110.8 9200 KOTRI 132.00 9230*JHAMPIR 132.00 1 SINGLE 216 112.0 117.5 100.0 9200 KOTRI 132.00 9230*JHAMPIR 132.00 1 SINGLE 217 112.0 117.5 100.0 -------------------------------------------------------------------------------Due to the volume of the output, contingency list was omitted. To overcome these (N-1) violations, more system additions were considered as follows. Under HESCO: 1. Second Circuit from 132KV Matli New Grid Station (9471) to Talhar Grid Station (9483) with Lynx Conductor. 2. Second Circuit from 132KV Talhar Grid Station (9483) to Badin Grid Station (9485) with Lynx Conductor. 3. Reconductoring of 132KV New Jamshoro (9400) – Qasimabad (9410) – Hala Road (9090) Circuit with Greeley Conductor. 4. Reconductoring both circuits of 132KV New Jamshoro (9400) – Old Jamshoro (9420) with Greeley Conductor. 5. Reconductroing of Kotri (9200) to Jhimpir Circuit (9230) with Greeley Conductor. 6. 3rd circuit from New Mirpur Khas Grid Station (9131) to Mirpur Khas Grid Station (9130) with Lynx Conductor. 7. Second circuit stringing from Samaro (9140) to Noukot (9501) with Lynx Conductor. 504760-01-A4 52 Disco Transmission Expansion Plan National Power System Expansion Plan 8. Reconductoring of 132KV Hala Road (9090) – Matiari (9455) – Hala (9060) Circuit wit Greeley conductor. 9. Construction of new SDT 132KV Transmission Line from Hala Road (9090) – Hala (9060) – Sakrand (9005) with Rail Conductor. 10. Reconductoring of 132KV T.M Khan Road (9159) – Ghanghra Mori (9095) – Phuelleli (9150) Circuit with Greely Conductor. 11. Installation of 2nd 132/66KV Power Transformer at 132KV Noukot Grid Station (9501). 12. Increase Capacitor from 1.2 to 3.6 MVAR of both Transformers of 132KV Grid Station Sehwan (8174). 13. Add capacitor 2.4 MVAR at 66KV Grid Station Khipro (9546). Under SEPCO: 1. Reconductoring of existing circuit from Dadu New (8170) to Dadu Old (8280) with Greeley conductor & construct 2nd circuit with Greeley conductor. 2. Construction of new 132KV SDT Transmission Line from Dadu Old (8280) to KPN Shah (8270) with Rail Conductor. 3. Construction of new 132KV SDT Transmission Line from Dadu New – (8170) Mehar (8260) – Larkana-III (8256) Grid Station with Rail Conductor. 4. Construction of new SDT 132KV Transmission Line from Liberty (8029) – Mirpur Mathelo (8040) – Ghotki (8070) with Greely Conductor. 5. Construction of D/C 132KV Transmission Line from New Rohri (8089) to Khairpur Grid Station (8100) with Rail Conductor, and D/C Transmission Line from New Rohri (8089) to Gamabt Grid Station (8130), instead of three circuits with Lynx Conductor. 6. Increase capacitor from 4.2 to 6.0 MVAR at T-2 of 132KV Grid Station Noushro Feroze (8150). 7. Add Capacitor 6.0 MVAR at T-1 of 132KV Grid Station New Jatoi (8142). 504760-01-A4 53 Disco Transmission Expansion Plan National Power System Expansion Plan 8. Add Capacitor 6.0 MVAR at T-2 & increase capacitor from 4.8 to 7.2 MVAR at T1 of 132KV Grid Station Moro (8160). 9. Increase Capacitor at T-1 from 4.8 to 7.2 MVAR of 132KV Grid Station Bhan Saeedabad (8175). 10. Increase Capacitor at T-1 from 4.8 to 6.02 MVAR & add 6.0 MVAR at T-2 of 132KV Grid Station Thull (8200). 11. Increase Capacitor up-to 4.8 MVAR at 132KV Grid Station Hamyoon (8221). 12. Increase Capacitor up-to 7.2 MVAR at T-1 & 6.0 at T-2 of 132KV Grid Station Jacobabad-I (8205). With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed HESCO and SEPCO base case for Year-2015 with the above mentioned system reinforcements are given in Appendix-3 (spread over 11 Sheets). 7.1.8. “QESCO” Distribution System for Year-2015 The Year-2015 base case was studied based on the planning criteria described in Section 12.5. The total load of QESCO by Year-2015 is 1,738 MW. The load flow single line diagrams of the full QESCO system are shown in Appendix-2 (spread over 4 Sheets) along with the system additions from Year-2010 to Year-2015. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], many voltage problems were recorded within the QESCO system as given below. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA 9600 SIBBI 132.00 V(PU) V(KV) 8 1.0680 140.98 BUS# X-- NAME --X BASKV AREA 96002 11.000 V(PU) V(KV) 8 1.0838 11.922 BUSES WITH VOLTAGE LESS THAN 0.9500: 504760-01-A4 54 Disco Transmission Expansion Plan National Power System Expansion Plan BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 8445 ROJJAMAL 132.00 8 0.9477 125.09 8510 USTAMOHD 132.00 8 0.9407 124.18 8515 JHAL MGS 132.00 8 0.9317 122.98 9652 MARROW 33.000 8 0.9438 31.145 9653 SPLINGI 33.000 8 0.9387 30.979 9700 Q.S.MAND 132.00 8 0.8967 118.37 9701 HABIB-P 132.00 8 0.9030 119.19 9710 PISHIN 132.00 8 0.7790 102.83 9712 KUCLAK 132.00 8 0.8598 113.49 9713 HURAMZAI 132.00 8 0.6428 84.851 9715 YARU 132.00 8 0.7730 102.03 9716 DAB KHANOZAI132.00 8 0.7708 101.75 9717 ALIZAI 132.00 8 0.6244 82.418 9720 GULISTAN 132.00 8 0.6090 80.382 9725 HABIBZAI 132.00 8 0.5976 78.889 9730 Q.ABDULA 132.00 8 0.5932 78.301 9735 CHAMAN 132.00 8 0.5587 73.751 9740 KHANOZAI 132.00 8 0.7972 105.23 9741 ZIARAT 132.00 8 0.7768 102.54 9750 MUS.BAGH 132.00 8 0.8182 108.00 9755 K. MATHERZAI132.00 8 0.8043 106.17 9760 Q.S.ULLA 132.00 8 0.8932 117.90 9765 MUSAFRPR 132.00 8 0.8253 108.93 9768 G.H.ZAI 132.00 8 0.8446 111.49 9770 ZHOB 132.00 8 0.8066 106.47 9810 NOSHKI 132.00 8 0.9268 122.33 9813 MAL 132.00 8 0.9244 122.02 9840 SURAB 132.00 8 0.9477 125.10 9845 ZEHRI 132.00 8 0.9448 124.72 9850 GIDDER 132.00 8 0.9327 123.11 9855 KHARAN 132.00 8 0.8932 117.90 9857 DLBINDIN 132.00 8 0.9268 122.34 9858 CHAGAI 132.00 8 0.9282 122.52 9859 BASIMA 132.00 8 0.9218 121.68 9864 BAGHBANA 132.00 8 0.9498 125.38 9865 NAL 132.00 8 0.9468 124.98 80040 PANJGUR 132.00 8 0.8720 115.10 80041 T-1 11.000 8 0.7508 84401 11.000 8 0.9361 10.297 96802 11.000 8 0.9413 10.355 96901 11.000 8 0.9243 10.167 96902 11.000 8 0.9196 10.115 97001 11.000 8 0.8666 9.533 97002 11.000 8 0.9449 10.394 97101 11.000 8 0.8486 9.335 97102 11.000 8 0.8486 97104 11.000 8 0.8486 9.335 97121 11.000 8 0.9150 10.065 97131 11.000 8 0.6284 6.913 97151 11.000 8 0.8976 9.874 97152 11.000 8 0.8144 8.959 97161 T-1 11.000 8 0.8816 9.698 97171 T-1 11.000 8 0.4554 5.009 97201 11.000 8 0.5465 6.011 97202 11.000 8 0.5239 5.763 97203 11.000 8 0.5222 5.744 97251 T-1 11.000 8 0.5380 5.918 97301 11.000 8 0.4664 5.130 97302 11.000 8 0.4664 5.130 97303 11.000 8 0.5214 5.735 97351 11.000 8 0.4782 5.260 97352 11.000 8 0.5037 5.541 97401 11.000 8 0.9009 9.910 97402 11.000 8 0.9009 9.910 97411 T-1 11.000 8 0.8852 9.737 97501 11.000 8 0.9435 10.379 97502 33.000 8 0.9068 29.925 97503 T-3 11.000 8 0.9240 10.164 97551 T-1 11.000 8 0.9109 10.020 97601 11.000 8 0.9224 10.146 97602 11.000 8 0.9170 10.087 97603 T-3 11.000 8 0.8778 97651 11.000 8 0.9250 10.175 97652 T-2 11.000 8 0.9480 10.428 97681 11.000 8 0.9106 10.017 97691 T-1 11.000 8 0.9419 10.361 97701 11.000 8 0.8525 9.377 97702 11.000 8 0.9223 10.145 97871 T-1 11.000 8 0.9223 10.145 98001 11.000 8 0.9310 10.241 98002 11.000 8 0.9310 10.241 98101 11.000 8 0.9013 98102 11.000 8 0.9432 10.375 98131 T-1 11.000 8 0.9133 10.046 98201 11.000 8 0.9465 10.411 98301 11.000 8 0.9129 10.042 98302 11.000 8 0.9129 10.042 98303 T-3 11.000 8 0.9129 10.042 98403 11.000 8 0.9144 10.059 98501 11.000 8 0.9045 9.950 98502 11.000 8 0.9470 10.417 98551 11.000 8 0.8666 9.532 98553 11.000 8 0.9453 10.398 98581 T-1 11.000 8 0.9248 10.173 98591 11.000 8 0.9172 10.089 98641 11.000 8 0.9487 10.436 98651 11.000 8 0.9310 10.241 98901 11.000 8 0.9034 8.259 9.335 9.655 9.914 9.938 -------------------------------------------------------------------------------- 504760-01-A4 55 Disco Transmission Expansion Plan National Power System Expansion Plan Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 645 MASTUNG 220.00* 15 9780 MASTUNG 132.00 8 1 409.6 320.0 128.0 970 QUETTA 220.00* 15 9660 QUETTAIN 132.00 8 1 661.5 480.0 137.8 9610 BHAG 132.00* 8 96101 11.000 8 1 20.7 13.0 159.0 9630 LORALAI 132.00* 8 96301 11.000 8 1 40.0 26.0 153.9 9630 LORALAI 132.00* 8 96302 11.000 8 1 20.0 13.0 153.9 9630 LORALAI 132.00* 8 96303 33.000 8 1 12.8 7.6 167.8 9650 MACH 132.00* 8 9651 MACH-33 33.000 8 1 22.0 13.0 169.0 9660 QUETTAIN 132.00 8 9690 MARIABAD 132.00* 8 1 130.4 112.0 116.4 9660 QUETTAIN 132.00 8 9690 MARIABAD 132.00* 8 2 130.4 112.0 116.4 9660 QUETTAIN 132.00 8 9700 Q.S.MAND 132.00* 8 1 200.7 112.0 179.2 9670 SARYAB 132.00* 8 96701 11.000 8 1 39.5 26.0 152.1 9670 SARYAB 132.00* 8 96702 11.000 8 1 63.8 40.0 159.5 9680 Q.CITY 132.00* 8 96801 11.000 8 1 45.6 40.0 114.0 9680 Q.CITY 132.00* 8 96802 11.000 8 1 29.6 26.0 114.0 9690 MARIABAD 132.00 8 132.00* 8 1 170.9 112.0 152.6 9690 MARIABAD 132.00* 8 96901 11.000 8 1 32.0 26.0 123.3 9690 MARIABAD 132.00* 8 96902 11.000 8 1 15.6 13.0 119.6 9700 Q.S.MAND 132.00 8 9712 KUCLAK 132.00* 8 1 168.9 112.0 150.8 9700 Q.S.MAND 132.00 8 9715 YARU 132.00* 8 1 225.6 112.0 201.4 9710 PISHIN 132.00* 8 9712 KUCLAK 132.00 8 1 130.8 112.0 116.8 9710 PISHIN 132.00 8 9720 GULISTAN 132.00* 8 1 169.9 112.0 151.7 9712 KUCLAK 132.00* 8 97121 11.000 8 1 33.2 26.0 127.7 9717 ALIZAI 132.00* 8 97171 T-1 11.000 8 1 45.1 26.0 173.6 9730 Q.ABDULA 132.00* 8 97301 11.000 8 1 26.5 26.0 101.8 9730 Q.ABDULA 132.00* 8 97302 11.000 8 1 26.5 26.0 101.8 9730 Q.ABDULA 132.00* 8 97303 11.000 8 1 28.5 26.0 109.8 9768 G.H.ZAI 132.00* 8 97681 11.000 8 1 14.3 13.0 109.7 9770 ZHOB 132.00* 8 97701 11.000 8 1 15.2 13.0 117.1 9780 MASTUNG 132.00 8 132.00* 8 1 124.2 112.0 110.9 9787 KANAK 132.00* 8 97871 T-1 11.000 8 1 36.9 26.0 142.1 9860 KHUZDAR 132.00* 8 98601 11.000 8 1 14.3 13.0 110.3 9860 KHUZDAR 132.00* 8 98603 11.000 8 1 34.3 26.0 132.1 80000 MAND 132.00* 8 80001 T-1 11.000 8 1 10.7 6.3 169.4 80010 TUMP 132.00* 8 80011 T-1 11.000 8 1 9.2 6.3 146.3 80040 PANJGUR 132.00* 8 80041 T-1 11.000 8 1 19.5 13.0 150.0 9700 Q.S.MAND 9787 KANAK -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), some system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. 504760-01-A4 56 Disco Transmission Expansion Plan National Power System Expansion Plan A) Augmentation/Additional Power Transformers: 1. 132 KV G/Haiderzai Grid Station(9768), augmentation of 13 with 26 MVA 2. 132 KV Alizai Grid Station (9717), 26 MVA additional T/F 3. 132 KV Q/Abdullah G/S (9730), augmentation of 3 x 26 MVA with 3 x 40 MVA 4. 132 KV Sariab G/S (9670), augmentation of 26 MVA with 40 MVA & an additional 40 MVA T/F 5. 132 KV Quetta City G/S (9680), augmentation of 26 MVA with 40 MVA T/F 6. 132 KV Kuchlack G/S (9712)), augmentation of 26 MVA with 40 MVA T/F 7. 132 KV Loralai G/S(9630), augmentation of 13 MVA with 40 MVA & 26 MVA with 40 MVA T/F 8. 132 KV Mach G/S (9650), augmentation of 6.5 MVA with 13 MVA & 15 MAV with 18 MVA T/F(132/33 KV T/F). 9. 132 KV Bhag G/S (9610), augmentation of 13 MVA with 26 MVA T/F. 10. 132 KV Kanak G/S (9787), additional 26 MVA T/F. 11. 132 KV Khuzdar G/S (9860), augmentation of 13 with 26 & 26 with 40 MVA T/F. 12. 132 KV Zhob G/S (9770), augmentation of 13 MVA with 26 MVA T/F. B) Reconductoring of branches: 1. Q.S.Manda (9700) to Yaru (9715) – replacement of Lynx with Rail conductor. 2. Q.S.Manda (9700) to Kuchlack (9712) – replacement of Lynx with Rail conductor. 3. Additional circuit from 132 KV Mastung (9780) to 132 KV Kanak (9787) G/S (Lynx). 4. Quetta Mariabad – Q.S.Manda replacement of Lynx with Greeley conductor C) 132 KV Fixed Shunt: 1. 24 MVAR at 132 KV Gulistan G/S (9720). 504760-01-A4 57 Disco Transmission Expansion Plan National Power System Expansion Plan D) 11 KV Fixed Shunt: No. Grid Station E) Capacitor Bank 1 Dab Khanozai G/S (97161), T/F-1 7.2 MVAR 2 Musafirpur G/S (97651), T/F-1 1.2 MVAR 3 Zhob G/S (97171), T/F-1 2.4 MVAR 4 G/Haiderzai G/S (97681), T/F-1 2.4 MVAR 5 Alizai G/S (97171), T/F-1 7.2 MVAR & T/F-2 = 7.2 MVAR 6 Q/Abdullah G/S (97301,97302,97303) T/F-1 = 2.8 MVAR, T/F-2 = 2.8 MVAR T/F-3 = 2.8 MVAR 7 Q.S.Manda G/S,(97001) T/F-1 = - 3.6 MVAR 8 Khuzdar G/S,(98601) T/F-1 = 2.4 MVAR QESCO-Mekran: 1. Augmentation of 6.3 with 13 MVA at Mand Grid Station 2. Augmentation of 6.3 with 13 MVA at Tump Grid Station 3. Augmentation of 13 with 26 MVA at Panjgur Grid Station 4. Construction of New Grid Station 132 KV Ormara along with allied Transmission Line With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: Ten severe line outages would lead to area collapse were recorded. -------------------------------------------------------------------------------- CONTINGENCY LEGEND: LABEL EVENTS SINGLE 10 : OPEN LINE FROM BUS 8440 [D.M.JMLI 132.00] TO BUS 8445 [ROJJAMAL 132.00] CKT 1 SINGLE 35 : OPEN LINE FROM BUS 9660 [QUETTAIN 132.00] TO BUS 9700 [Q.S.MAND 132.00] CKT 1 SINGLE 47 : OPEN LINE FROM BUS 9700 [Q.S.MAND 132.00] TO BUS 9715 [YARU 132.00] CKT 1 SINGLE 52 : OPEN LINE FROM BUS 9710 [PISHIN 132.00] TO BUS 9720 [GULISTAN 132.00] CKT 1 SINGLE 56 : OPEN LINE FROM BUS 9713 [HURAMZAI 132.00] TO BUS 9715 [YARU 132.00] CKT 1 SINGLE 58 : OPEN LINE FROM BUS 9713 [HURAMZAI 132.00] TO BUS 9730 [Q.ABDULA 132.00] CKT 1 SINGLE 78 : OPEN LINE FROM BUS 9787 [KANAK 132.00] TO BUS 9790 [PANJPAI 132.00] CKT 1 SINGLE 79 : OPEN LINE FROM BUS 9790 [PANJPAI 132.00] TO BUS 9800 [KIRDGHEB 132.00] CKT 1 SINGLE 80 : OPEN LINE FROM BUS 9800 [KIRDGHEB 132.00] TO BUS 9810 [NOSHKI 132.00] CKT 1 504760-01-A4 58 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 92 : OPEN LINE FROM BUS 9840 [SURAB 132.00] TO BUS 9850 [GIDDER 132.00] CKT 1 -------------------------------------------------------------------------------- Out-of-Limits Bus Voltages: Many voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 13 <-------- B U S --------> 8203 HAIRDIN 132.00 1.10680 1.02427 1.10000 0.90000 SINGLE 13 8440 D.M.JMLI 132.00 1.10626 0.97997 1.10000 0.90000 SINGLE 13 8444 MANJOSHORI 132.00 1.10505 0.97789 1.10000 0.90000 SINGLE 13 8455 T-RJAMAL 66.000 1.10186 0.97116 1.10000 0.90000 SINGLE 26 9765 MUSAFRPR 132.00 0.89808 0.96549 1.10000 0.90000 SINGLE 26 9770 ZHOB 132.00 0.88494 0.95518 1.10000 0.90000 SINGLE 27 9765 MUSAFRPR 132.00 0.89808 0.96549 1.10000 0.90000 SINGLE 27 9770 ZHOB 132.00 0.88494 0.95518 1.10000 0.90000 SINGLE 46 9712 KUCLAK 132.00 0.89494 1.01053 1.10000 0.90000 SINGLE 46 9713 HURAMZAI 132.00 0.89870 0.97705 1.10000 0.90000 SINGLE 46 9717 ALIZAI 132.00 0.89076 0.97058 1.10000 0.90000 SINGLE 46 9720 GULISTAN 132.00 0.87626 0.96506 1.10000 0.90000 SINGLE 46 9725 HABIBZAI 132.00 0.87329 0.96258 1.10000 0.90000 SINGLE 46 9730 Q.ABDULA 132.00 0.87362 0.96262 1.10000 0.90000 SINGLE 46 9735 CHAMAN 132.00 0.85745 0.95080 1.10000 0.90000 SINGLE 46 9741 ZIARAT 132.00 0.89887 0.97128 1.10000 0.90000 SINGLE 46 9770 ZHOB 132.00 0.89043 0.95518 1.10000 0.90000 SINGLE 73 9855 KHARAN 132.00 0.87514 0.95683 1.10000 0.90000 SINGLE 73 9859 BASIMA 132.00 0.89717 0.98515 1.10000 0.90000 SINGLE 76 9855 KHARAN 132.00 0.88155 0.95683 1.10000 0.90000 SINGLE 95 9800 KIRDGHEB 132.00 0.89117 0.99673 1.10000 0.90000 SINGLE 95 9810 NOSHKI 132.00 0.78466 0.97228 1.10000 0.90000 SINGLE 95 9813 MAL 132.00 0.78098 0.97028 1.10000 0.90000 SINGLE 95 9855 KHARAN 132.00 0.57783 0.95683 1.10000 0.90000 SINGLE 95 9857 DLBINDIN 132.00 0.70708 0.98044 1.10000 0.90000 SINGLE 95 9858 CHAGAI 132.00 0.75177 0.97714 1.10000 0.90000 SINGLE 95 9859 BASIMA 132.00 0.57584 0.98515 1.10000 0.90000 SINGLE 96 9855 KHARAN 132.00 0.83426 0.95683 1.10000 0.90000 SINGLE 97 9800 KIRDGHEB 132.00 0.89293 0.99673 1.10000 0.90000 SINGLE 97 9810 NOSHKI 132.00 0.78740 0.97228 1.10000 0.90000 SINGLE 97 9813 MAL 132.00 0.78375 0.97028 1.10000 0.90000 SINGLE 97 9855 KHARAN 132.00 0.58037 0.95683 1.10000 0.90000 SINGLE 97 9857 DLBINDIN 132.00 0.71015 0.98044 1.10000 0.90000 SINGLE 97 9858 CHAGAI 132.00 0.75471 0.97714 1.10000 0.90000 -------------------------------------------------------------------------------Due to the volume of the output, contingency list was omitted. Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. 504760-01-A4 59 Disco Transmission Expansion Plan National Power System Expansion Plan -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES AND INTERFACES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 17 112.0 116.9 101.5 % 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 18 112.0 116.9 101.5 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 21 112.0 115.4 100.1 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 22 112.0 115.4 100.1 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 23 112.0 115.6 100.3 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 26 112.0 126.2 110.0 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 27 112.0 126.2 110.0 9660 QUETTAIN 132.00 9670*SARYAB 132.00 2 SINGLE 31 112.0 113.8 100.6 9660 QUETTAIN 132.00 9670*SARYAB 132.00 1 SINGLE 32 112.0 113.8 100.6 9660*QUETTAIN 132.00 9690 MARIABAD 132.00 2 SINGLE 33 112.0 151.1 129.1 9660*QUETTAIN 132.00 9690 MARIABAD 132.00 1 SINGLE 34 112.0 151.1 129.1 9660 QUETTAIN 132.00 9700*Q.S.MAND 132.00 1 SINGLE 41 202.0 220.9 107.6 9700*Q.S.MAND 132.00 9870 Q.S.MAND 66.000 1 SINGLE 41 75.0 79.0 105.3 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 42 112.0 136.5 118.7 9700 Q.S.MAND 132.00 9715*YARU 132.00 1 SINGLE 45 202.0 208.2 104.8 9710 PISHIN 132.00 9712*KUCLAK 132.00 1 SINGLE 45 112.0 138.3 123.6 9700 Q.S.MAND 132.00 9715*YARU 132.00 1 SINGLE 46 202.0 224.7 117.3 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 48 112.0 139.4 120.8 9700 Q.S.MAND 132.00 9715*YARU 132.00 1 SINGLE 49 202.0 210.8 106.4 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 65 112.0 116.2 101.1 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 66 112.0 116.2 101.1 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 68 112.0 117.8 102.5 9780 MASTUNG 132.00 9820*MANGOCHR 132.00 1 SINGLE 73 112.0 133.0 129.0 9780 MASTUNG 132.00 9787*KANAK 132.00 1 SINGLE 75 112.0 119.3 103.6 9780 MASTUNG 132.00 9781*K-KOCHA 132.00 1 SINGLE 76 112.0 135.0 125.5 9780*MASTUNG 132.00 9820 MANGOCHR 132.00 1 SINGLE 77 112.0 117.2 100.4 9787 KANAK 132.00 9790*PANJPAI 132.00 1 SINGLE 95 112.0 139.7 127.3 9790 PANJPAI 132.00 9800*KIRDGHEB 132.00 1 SINGLE 95 112.0 116.6 116.8 9787 KANAK 132.00 9790*PANJPAI 132.00 1 SINGLE 97 112.0 138.3 125.9 9790 PANJPAI 132.00 9800*KIRDGHEB 132.00 1 SINGLE 97 112.0 115.4 115.3 9690*MARIABAD 132.00 9700 Q.S.MAND 132.00 1 SINGLE 102 112.0 116.0 100.3 -------------------------------------------------------------------------------Due to the volume of the output, contingency list was omitted. To overcome these (N-1) violations, more system additions were considered as follows. A) 132/11 KV FIXED SHUNTS: 1. 132 KV Khanozai G/S (9740) – 36 MVAR 2. 132 KV Q.S.Manda G/S (9700) – 36 MVAR 3. 132 KV Jhal Magsi G/S (8515) – 2.4 MVAR 4. 132 KV Dab Khanozai G/S (97161) – 4.8 MVAR 504760-01-A4 60 Disco Transmission Expansion Plan National Power System Expansion Plan 5. 132 KV Gulistan G/S (9720) – 24 MVAR 6. 132 KV Gidder G/S (9850) – 3.6 MVAR B) 132 KV BRANCHES: 1. 2nd circuit from D.M.Jamali (8440) to Rojhan Jamali (8445) 2. Mall (9813) to Kharan (9855) 3. Kharan (9855) to Dalbandin (9857) 4. 2nd circuit from Panjpai (9790) to Kirdgab (9800) 5. 2nd circuit from Kirdgab (9800) to Noshki (9810) 6. Double Circuit from Quetta Industrial (9660) to Pishin (9710) 7. 2nd circuit from Q.S Manda (9700) to Yaru (9715) 8. Stringing of 2nd circuit from Huramzai (9713) to Yaru (9715) 9. 2nd circuit from Huramzai (9713) to Q/Abdullah (9730) 10. 2nd circuit from Rojhan Jamali (8445) to Usta Muhammad 11. 2nd Circuit from Kanak to Panjpai 25 Km with Greeley conductor 12. 2nd Circuit from Surab to Gidder 24 Km with Lynx conductor C) RE-CONDUCTORING : 1. Replacement of Lynx with Greeley conductor from Mastung (9780) to Mangocher (9820) 2. Replacement of Lynx with Greeley conductor of 1st CKT from Mastung (9780) to Kanak (9787) 3. Replacement of Lynx with Greeley conductor from Mastung (9780) to Kad Kucha (9781) With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. 504760-01-A4 61 Disco Transmission Expansion Plan National Power System Expansion Plan The updated load flow single line diagrams for developed QESCO base case for Year2015 with the above mentioned system reinforcements are given in Appendix-3 (spread over 4 Sheets). 7.1.8 Year-2016 Study Base Cases As mentioned in the methodology (Section 12.6), each DISCO has prepared the Year2016 case based on the following: a) The final Year-2015 case with all reinforcements developed in Section 12.7.1 b) Load forecast of Year-2016 The load flow results are given for each DISCO independently in three main activities. a) Analysing the developed case under both normal (N-0) and contingency (N-1) conditions b) Identifying system reinforcements as appropriate c) Re-checking the system under (N-0) and (N-1) with system reinforcements 7.1.9 “PESCO & TESCO” Distribution System for Year-2016 The Year-2016 base case was studied based on the planning criteria described in Section 12.5. The total loads of PESCO and TESCO by Year-2016 are 3,211 MW and 1,031 MW, respectively (combined: 4,242 MW). Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], some low voltage problems were recorded within the PESCO and TESCO systems as given below. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: 504760-01-A4 62 Disco Transmission Expansion Plan National Power System Expansion Plan BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 1346 MIR ALI 132.00 10 0.9474 125.05 1351 DATAKHEL 132.00 10 0.9371 123.69 1355 RAZMAK 132.00 10 0.9488 125.24 1755 SADDA 132.00 10 0.9433 124.52 1775 PARACINA 132.00 10 0.9131 120.53 1870 KULACHI 66.000 1 0.9466 62.473 1880 DARABAN 66.000 1 0.9287 61.293 1890 BUNDKURI 66.000 1 0.9424 62.200 1900 ABBOTABD 66.000 1 0.8216 54.223 1920 T-HAVLAN 66.000 1 0.8655 57.125 1930 HARIPUR 66.000 1 0.9357 61.758 12501 T1 11.000 10 0.9494 10.444 12502 T2 11.000 10 0.9494 10.444 12503 T3 11.000 1 0.9494 10.444 12551 T1 11.000 10 0.9255 10.181 12552 T2 11.000 10 0.9255 10.181 13171 T1 11.000 10 0.9258 10.184 13503 T2 11.000 10 0.9372 10.309 13601 T1 11.000 1 0.9495 10.445 13602 T2 11.000 1 0.9464 10.411 13651 T1 11.000 1 0.9364 10.301 13652 T2 11.000 1 0.9315 10.247 13701 T1 11.000 1 0.9494 10.443 13751 T1 11.000 1 0.9359 10.295 14251 T1 11.000 1 0.9477 10.424 14451 T1 11.000 1 0.9410 10.351 14452 T2 11.000 1 0.9479 10.427 14551 T1 11.000 1 0.9368 10.305 16021 T1 11.000 1 0.9420 10.362 16022 T2 11.000 1 0.9420 10.362 17551 T1 11.000 10 0.9313 10.244 17552 T2 11.000 10 0.9313 10.244 17751 T1 11.000 10 0.9440 10.384 17752 T2 11.000 10 0.9440 10.384 17753 T3 11.000 10 0.9440 10.384 17901 T1 11.000 1 0.9449 10.394 17902 T2 11.000 1 0.9221 10.143 18902 T2 11.000 1 0.9432 10.375 19001 T1 11.000 1 0.7857 20151 T1 11.000 1 0.9478 10.426 20153 T4 11.000 1 0.9475 10.423 8.643 -------------------------------------------------------------------------------- Line/Transformer Overloads: Some overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A PESCO X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 1071 MARDAN III 132.00* 1 10711 T1 11.000 1 1 26.1 26.0 100.3 1071 MARDAN III 132.00* 1 10712 T2 11.000 1 1 26.1 26.0 100.3 1196 PESHFORT 132.00* 1 11961 T1 11.000 1 1 44.8 40.0 112.1 1196 PESHFORT 132.00* 1 11962 T2 11.000 1 1 44.3 40.0 110.8 1240 JAMRUD-I 132.00* 1 12404 T4 11.000 1 1 26.4 26.0 101.7 1270 PESH UNI 132.00* 1 12702 T2 11.000 1 1 40.4 40.0 101.0 1270 PESH UNI 132.00* 1 12703 T3 11.000 1 1 26.8 26.0 103.0 1360 ABBOTABD 132.00* 1 13603 T3 11.000 1 1 26.7 26.0 102.6 1380 MANSEHRA 132.00* 1 13801 T1 11.000 1 1 26.0 26.0 100.1 1380 MANSEHRA 132.00* 1 13802 T2 11.000 1 1 26.6 26.0 102.5 1890 BUNDKURI 66.000* 1 18901 T1 11.000 1 1 13.1 13.0 100.7 1890 BUNDKURI 66.000* 1 18902 T2 11.000 1 1 13.3 13.0 102.3 1900 ABBOTABD 66.000* 1 19001 T1 11.000 1 1 17.6 13.0 135.1 504760-01-A4 63 Disco Transmission Expansion Plan National Power System Expansion Plan TESCO X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 1275 BARA 132.00* 10 12751 T1 11.000 10 1 27.9 26.0 107.4 1275 BARA 132.00* 10 12752 T2 11.000 10 1 27.9 26.0 107.4 1275 BARA 132.00* 10 12753 T3 11.000 10 1 27.9 26.0 107.4 1295 D.A.KHEL 132.00* 10 12951 T1 11.000 10 1 26.2 26.0 100.9 1295 D.A.KHEL 132.00* 10 12952 T2 11.000 10 1 26.2 26.0 100.9 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), many system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. PESCO Reinforcements Augmentations: 1. 10/13 by 20/26 MVA at 132 kV Shangla G/S. 2. 20/26 by 40 MVA at 132 kV Jamrud G/S. 3. 20/26 by 40 MVA at 132 kV Peshawar University G/S. 4. 20/26 by 40 MVA at 132 kV Mansehra G/S. Extensions: 1. Extension of 10/13 MVA Transformer at 66 kV Abbottabad G/S. 2. Extension with 4 MVA at 33 kV Darosh G/S. 3. Extension with 4 MVA at 33 kV Pattan G/S. 132 kV Capacitors: 1. Additional 12 MVAR at 132 kV Tall. 11 kV Capacitors: 1. 7.2 MVAR at T-4, 132 kV Jamrud G/S. 2. 7.2 MVAR at T-3, 132 kV Abbottabad G/S. 3. 4.2 MVAR at T- 2, 66 kV Abbottabad G/S. 504760-01-A4 64 Disco Transmission Expansion Plan National Power System Expansion Plan 4. 4.8 MVAR at T-1, 132 kV Noseri G/S. 5. 7.2 MVAR each at T-1 and T-4, 132 kV Gadoon Amazai G/S. Up-Grading of G/S: 1. Conversion of 66 kV Bandkori to 132 kV with 1x10/13 MVA and 1x20/26 MVA Power T/Fs. New T/ Lines: 1. 29 KM Line from 132 kV D.I Khan to 132 kV Bandkori with Lynx Conductor. TESCO Reinforcements 11 kV Capacitors: 1. 7.2 MVAR at T-1, 132 kV Datakhel G/S 2. 7.2 MVAR each at T-1 and T-2, 132 kV Darra Adam Khel G/S. 3. 7.2 MVAR each at T-1, T-2 and T-3, 132 kV Bara. 4. 7.2 MVAR Each at T-1 and T-2, 132 kV Wana G/S. With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: Some low voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN BASE CASE <-------- B U S --------> 1900 ABBOTABD 66.000 0.83150 0.83150 1.10000 0.90000 BASE CASE 1920 T-HAVLAN 66.000 0.87452 0.87452 1.10000 0.90000 SINGLE 102 1850 JANDOLA 66.000 0.87744 0.96498 1.10000 0.90000 SINGLE 102 1865 SARAROGA 66.000 0.87761 0.96516 1.10000 0.90000 504760-01-A4 65 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 140 1750 ALIZAI 66.000 0.88607 1.02331 1.10000 0.90000 SINGLE 144 1335 KARAK 132.00 0.87463 1.00385 1.10000 0.90000 SINGLE 144 1336 SABIR ABAD 132.00 0.86759 0.99910 1.10000 0.90000 SINGLE 144 1338 SIRAJ BABA 132.00 0.87025 1.00015 1.10000 0.90000 SINGLE 148 1345 S.NURANG 132.00 0.88181 1.00209 1.10000 0.90000 SINGLE 156 1344 T-MIRALI 132.00 0.85218 0.99026 1.10000 0.90000 SINGLE 156 1346 MIR ALI 132.00 0.83683 0.97952 1.10000 0.90000 SINGLE 156 1351 DATAKHEL 132.00 0.89271 0.98627 1.10000 0.90000 SINGLE 156 1355 RAZMAK 132.00 0.89185 0.98461 1.10000 0.90000 CONTINGENCY LEGEND: SINGLE 102 : OPEN LINE FROM BUS 1261 [DI.KHN-N 132.00] TO BUS 1460 [TANK 132.00] CKT 1 SINGLE 140 : OPEN LINE FROM BUS 1315 [TALL 132.00] TO BUS 1316 [TALL 66.000] CKT 1 SINGLE 144 : OPEN LINE FROM BUS 1332 [BANNU-N 132.00] TO BUS 1335 [KARAK 132.00] CKT 1 SINGLE 148 : OPEN LINE FROM BUS 1332 [BANNU-N 132.00] TO BUS 1345 [S.NURANG 132.00] CKT 1 SINGLE 156 : OPEN LINE FROM BUS 1342 [BANNU-II 132.00] TO BUS 1344 [T-MIRALI 132.00] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: A few marginal line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY FLOW % 1440*TARBELA-R 132.00 1442 GHAZI-IS 132.00 1 SINGLE 3 RATING 112.0 108.4 103.7 1069*DOBIAN 132.00 1070 MARDAN 132.00 1 SINGLE 5 112.0 113.3 101.6 1379 MANSHR-N 132.00 1380*MANSEHRA 132.00 2 SINGLE 173 112.0 116.4 104.2 1379 MANSHR-N 132.00 1380*MANSEHRA 132.00 1 SINGLE 174 112.0 116.4 104.2 CONTINGENCY LEGEND: SINGLE 3 : OPEN LINE FROM BUS 1069 [DOBIAN 132.00] TO BUS 1080 [SWABI 132.00] CKT 1 SINGLE 5 : OPEN LINE FROM BUS 1070 [MARDAN 132.00] TO BUS 1074 [MARDANII 132.00] CKT 1 SINGLE 173 : OPEN LINE FROM BUS 1379 [MANSHR-N 132.00] TO BUS 1380 [MANSEHRA 132.00] CKT 1 SINGLE 174 : OPEN LINE FROM BUS 1379 [MANSHR-N 132.00] TO BUS 1380 [MANSEHRA 132.00] CKT 2 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. PESCO Reinforcements 132 kV Capacitors: 1. 24 MVAR at 132 kV Dobian. 504760-01-A4 66 Disco Transmission Expansion Plan National Power System Expansion Plan 11 kV Capacitors: 1. Additional 3.2 MVAR at T-2, 132 kV Swabi G/S. 2. 7.2 MVAR at T- 1, 132 kV Gadoon G/S. 3. 7.2 MVAR at T-1 & T-2, 132 kV Mardan-III T/ Lines: 1. 8 KM Additional Circuit from 220/132 kV Mansehra to 132 kV Mansehra with Lynx Conductor. TESCO Reinforcements 132 kV Capacitors: 1. 24 MVAR at 132 kV Mir Ali. With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed PESCO and TESCO base case for Year-2016 with the above mentioned system reinforcements are given in Appendix-4 (spread over 7 Sheets). 7.1.10 “IESCO” Distribution System for Year-2016 The Year-2016 base case was studied based on the planning criteria described in Section 12.5. The total load of IESCO by Year-2016 is 3,148 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], no voltage problems were recorded within the IESCO system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA 504760-01-A4 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA 67 V(PU) V(KV) Disco Transmission Expansion Plan National Power System Expansion Plan 2755 AEL 66.000 2 1.0500 69.300 BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) * NONE * -------------------------------------------------------------------------------- Line/Transformer Overloads: A few overloading problems was recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 215 IBD.P.RD 220.00* 15 2025 SANGJANI 132.00 2 1 533.8 480.0 111.2 220 REWAT-N 220.00* 15 2300 REWAT NEW 132.00 2 1 481.7 480.0 100.3 2169 BT PH-8 132.00* 2 21691 T-3 11.000 2 1 17.8 13.0 137.1 2266 GOLFCITY BT 132.00* 2 22661 T-1 11.000 2 1 14.0 13.0 108.0 2266 GOLFCITY BT 132.00* 2 22662 T-2 11.000 2 1 14.0 13.0 108.0 2850 FATEH JANG 2 28501 T-3 11.000 2 1 37.7 26.0 144.9 132.00* Note: 220/132KV Power Transformers at Ibd. P.Rd and Rewat New relate to NTDC -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), a few transformer augmentations were added as follows. Bus # Name of 132 kV Grid Station Existing Capacity (MVA) 13 Proposed Capacity Remark (MVA) 26 Consumer GS 21691 Bahria Town Ph‐8 22661 Bahia Town Golf City 13 26 Consumer GS 22662 Bahia Town Golf City 13 26 Consumer GS 27821 Gharibwal CF 13 26 Consumer GS 28501 Fatehjang 26 40 With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. 504760-01-A4 68 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: Some voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 89 <-------- B U S --------> 28531 T-1 11.000 0.88569 0.95960 1.10000 0.90000 SINGLE 89 28532 T-2 11.000 0.88574 0.95964 1.10000 0.90000 SINGLE 102 28531 T-1 11.000 0.89705 0.95960 1.10000 0.90000 SINGLE 102 28532 T-2 11.000 0.89710 0.95964 1.10000 0.90000 SINGLE 164 2166 CHAINTBATIAN132.00 0.81743 0.98586 1.10000 0.90000 SINGLE 164 2170 KHUTACTY 132.00 0.81743 0.98586 1.10000 0.90000 SINGLE 164 2180 AZADPATN 132.00 0.84535 0.97861 1.10000 0.90000 SINGLE 164 2519 MANG 33.000 0.82004 0.98622 1.10000 0.90000 SINGLE 164 2925 AZADPATN 33.000 0.83677 0.99967 1.10000 0.90000 SINGLE 164 2930 PALANDRI 132.00 0.86521 0.97641 1.10000 0.90000 SINGLE 164 2940 HAJEERA 132.00 0.89427 0.96820 1.10000 0.90000 SINGLE 164 21661 T-1 11.000 0.77865 0.95154 1.10000 0.90000 SINGLE 164 21662 T-2 11.000 0.77865 0.95154 1.10000 0.90000 SINGLE 164 21701 T-1 11.000 0.81687 1.03262 1.10000 0.90000 SINGLE 164 21702 T-2 11.000 0.77557 0.97170 1.10000 0.90000 SINGLE 164 25191 T-1 11.000 0.78438 0.95739 1.10000 0.90000 SINGLE 164 25192 T-2 11.000 0.78674 0.95926 1.10000 0.90000 SINGLE 182 21721 T-2 11.000 0.89690 0.96647 1.10000 0.90000 SINGLE 182 21722 T-3 11.000 0.89690 0.96647 1.10000 0.90000 SINGLE 182 21761 T-1 11.000 0.86976 0.96159 1.10000 0.90000 SINGLE 182 21762 T-2 11.000 0.86976 0.96159 1.10000 0.90000 SINGLE 182 21763 T-3 11.000 0.87562 0.96675 1.10000 0.90000 66.000 1.11728 1.02850 1.10000 0.90000 SINGLE 440 2782 GARIBWAL -------------------------------------------------------------------------------Due to the volume of the output, contingency list was omitted. Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY 504760-01-A4 69 RATING FLOW % Disco Transmission Expansion Plan National Power System Expansion Plan 2270 CHAKLALA 132.00 2280*CANTT RWP 132.00 1 SINGLE 123 112.0 112.5 100.7 2400 MANGLA 132.00 2500*MIRPUR 132.00 1 SINGLE 144 112.0 119.9 106.5 2195 ISD. H-11 132.00 2200*IBD. I-10 132.00 1 SINGLE 202 114.0 111.8 102.4 2400 MANGLA 132.00 1 SINGLE 384 112.0 113.7 100.7 2142*CHITAR PARI 132.00 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 144 : OPEN LINE FROM BUS 2142 [CHITAR PARI 132.00] TO BUS 2400 [MANGLA 132.00] CKT 1 SINGLE 194 : OPEN LINE FROM BUS 2195 [ISD. H-11 132.00] TO BUS 2200 [IBD. I-10 132.00] CKT 1 SINGLE 299 : OPEN LINE FROM BUS 2270 [CHAKLALA 132.00] TO BUS 2280 [CANTT RWP 132.00] CKT 1 SINGLE 384 : OPEN LINE FROM BUS 2400 [MANGLA 132.00] TO BUS 2500 [MIRPUR 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. 1. Reconductoring of 132kV Transmission Lines a) Chaklala – Cantt Rwp from Lynx to Greely (5 KM) b) Mangla – Mirpur from Lynx to Greely ( 10.9 KM) c) H-11 – I-10 Isb from Zigolo to Greely (2.7 KM) d) Chattar Pari – Mangla from Lynx to Greely ( 10 KM) With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed IESCO base case for Year2016 with the above mentioned system reinforcements are shown in Appendix-4 (spread over 9 Sheets). 7.1.11 “GEPCO” Distribution System for Year-2016 The Year-2016 base case was studied based on the planning criteria described in Section 12.5. The total load of GEPCO by Year-2016 is 2,641 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], no voltage problems were recorded within the GEPCO system. 504760-01-A4 70 Disco Transmission Expansion Plan National Power System Expansion Plan -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA * NONE * -------------------------------------------------------------------------------- Line/Transformer Overloads: No overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT * NONE * -------------------------------------------------------------------------------- No network reinforcements were added to the GEPCO system by Year-2016 to meet the planning criteria under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: One marginal voltage problem was recorded (outside: 0.90 – 1.10 pu). 504760-01-A4 71 Disco Transmission Expansion Plan National Power System Expansion Plan -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY <-------- B U S --------> SINGLE 103 3230 DASKA 66.000 V-CONT V-INIT V-MAX V-MIN 0.89818 0.97207 1.10000 0.90000 -------------------------------------------------------------------------------- Line/Transformer Overloads: Three line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW % 3013*GUJRAT-1 132.00 3316 NEW GUJRAT 132.00 2 SINGLE 45 90.0 103.0 112.6 3013*GUJRAT-1 132.00 3316 NEW GUJRAT 132.00 1 SINGLE 46 90.0 103.0 112.6 3018*G.T.ROAD 132.00 3316 NEW GUJRAT 132.00 1 SINGLE 48 90.0 102.0 112.5 3016*GUJRAT-2 132.00 3316 NEW GUJRAT 132.00 1 SINGLE 49 90.0 101.8 111.0 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 45 : OPEN LINE FROM BUS 3013 [GUJRAT-1 132.00] TO BUS 3316 [NEW GUJRAT 132.00] CKT 1 SINGLE 46 : OPEN LINE FROM BUS 3013 [GUJRAT-1 132.00] TO BUS 3316 [NEW GUJRAT 132.00] CKT 2 SINGLE 48 : OPEN LINE FROM BUS 3016 [GUJRAT-2 132.00] TO BUS 3316 [NEW GUJRAT 132.00] CKT 1 SINGLE 49 : OPEN LINE FROM BUS 3018 [G.T.ROAD 132.00] TO BUS 3316 [NEW GUJRAT 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, a few system additions were considered as follows. 1. In & Out of the existing 132 kV Gujrat 1 – Gujrat 2 T/Line at 132 kV bus bar of proposed 220 kV Gujrat grid station with Greely conductor and re-conductoring the existing line from Tiger to Greely conductor. 2. In & Out of the existing 132 kV Gakhar – Gujrat 1 T/Line at 132 kV bus bar of proposed 220 kV Gujrat grid station with Greely conductor and re-conductoring the existing line segment towards Gujrat 1 grid station from Tiger to Greely conductor. 3. In & Out of the existing 132 kV Wazirabad – Gujrat 2 T/Line at 132 kV bus bar of proposed 220 kV Gujrat grid station with Greely conductor and re-conductoring the existing line segment towards Gujrat 2 grid station from Tiger to Greely conductor. 504760-01-A4 72 Disco Transmission Expansion Plan National Power System Expansion Plan With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed GEPCO base case for Year2016 with the above mentioned system reinforcements are shown in Appendix-4 (spread over 5 Sheets). 7.1.12 “LESCO” Distribution System for Year-2016 The Year-2016 base case was studied based on the planning criteria described in Section 12.5. The total load of LESCO by Year-2016 is 5,302 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], no voltage problems were recorded within the LESCO system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA * NONE * -------------------------------------------------------------------------------- Line/Transformer Overloads: Two overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV 504760-01-A4 AREA BUS# X-- NAME --X BASKV 73 AREA CKT LOADING RATING PERCENT Disco Transmission Expansion Plan National Power System Expansion Plan 4023 K.S.KAKU 132.00* 4 40231 KSK T-1 4023 K.S.KAKU 132.00* 4 40232 KSK T-2 11.000 4 1 27.6 26.0 106.0 4 1 32.1 26.0 123.5 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), one some system reinforcement was added to solve the (N-0) violations as given below. • Augmentation of 2x132/11 kV, 26MVA Transformers with 40MVA capacity at 220kV Kala Shah Kaku grid station. With the above addition, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: No voltage problems were recorded (outside: 0.90 – 1.10 pu). Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 4076 RAVI-I 132.00 4465*KHOKAR RD 132.00 1 SINGLE 113 202.0 209.3 105.5 4076 RAVI-I 132.00 4081*CHAHMIRN 132.00 2 SINGLE 116 202.0 204.3 103.0 4085 SHALAMAR 132.00 4411*T SMR STL 132.00 1 SINGLE 116 202.0 220.4 114.7 4087*T-B.GOLD 132.00 4411 T SMR STL 132.00 1 SINGLE 116 202.0 211.5 111.2 4087 T-B.GOLD 132.00 132.00 1 SINGLE 116 202.0 195.2 103.7 4076 RAVI-I 132.00 4465*KHOKAR RD 132.00 1 SINGLE 133 202.0 213.3 108.1 4076 RAVI-I 132.00 4465*KHOKAR RD 132.00 1 SINGLE 135 202.0 206.4 104.5 40871*T-LATIF % CONTINGENCY LEGEND: LABEL EVENTS SINGLE 113 : OPEN LINE FROM BUS 4076 [RAVI-I 132.00] TO BUS 4081 [CHAHMIRN 132.00] CKT 2 SINGLE 116 : OPEN LINE FROM BUS 4076 [RAVI-I 132.00] TO BUS 4465 [KHOKAR RD 132.00] CKT 1 SINGLE 133 : OPEN LINE FROM BUS 4085 [SHALAMAR 132.00] TO BUS 4411 [T SMR STL 132.00] CKT 1 SINGLE 135 : OPEN LINE FROM BUS 4087 [T-B.GOLD 132.00] TO BUS 4411 [T SMR STL 132.00] CKT 1 -------------------------------------------------------------------------------- 504760-01-A4 74 Disco Transmission Expansion Plan National Power System Expansion Plan To overcome these (N-1) violations, one line was added as follows. • A new 132kV D/C Kala Shah Kaku – Bhogiwal Transmission Line approximately 30Km on Rail Conductor. With this additional line, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed LESCO base case for Year2016 with the above mentioned system reinforcements are shown in Appendix-4 (spread over 9 Sheets). 7.1.13 “FESCO” Distribution System for Year-2016 The Year-2016 base case was studied based on the planning criteria described in Section 12.5. The total load of FESCO by Year-2016 is 3,493 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], no voltage problems were recorded within the FESCO system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA * NONE * -------------------------------------------------------------------------------- 504760-01-A4 75 Disco Transmission Expansion Plan National Power System Expansion Plan Line/Transformer Overloads: A few overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 360 LUDEWALA 220.00* 15 5419 LUDWLA-N 132.00 5 1 554.7 480.0 115.6 420 NISATABD 220.00* 15 4330 NSHTBD-1 132.00 5 1 356.5 320.0 111.4 4380 FBD-TH-O 132.00* 5 43801 T1 11.000 5 1 40.5 40.0 101.2 4414 STIANA RD 132.00* 5 44141 T1 11.000 5 1 26.7 26.0 102.7 5200 BHAKKAR 66.000 5 132.00* 5 1 40.6 40.0 101.5 5440 BHAMB 132.00* 5 54402 T2 11.000 5 1 40.7 40.0 101.6 5475 BHALWAL 132.00* 5 54751 T1 11.000 5 1 26.6 26.0 102.1 5475 BHALWAL 132.00* 5 54752 T2 11.000 5 1 26.6 26.0 102.1 7455 BHAKKAR 132.00 5 132.00* 6 1 170.2 112.0 152.0 7455 BHAKKAR 7456 CHOKAZAM -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), many system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. Sr.No. Grid Station KV PSS/E Bus Rinforcement Required No. 1 Bhalwal 132 5475 2 Bhamb 132 5440 Augmentation 20/26 MVA T/F with 40 MVA Augmentation 20/26 MVA T/F with 40 MVA With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: Many low voltage problems were recorded (outside: 0.90 – 1.10 pu). 504760-01-A4 76 Disco Transmission Expansion Plan National Power System Expansion Plan -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 140 <-------- B U S --------> 5220 MANKERA 66.000 0.89412 0.97254 1.10000 0.90000 SINGLE 140 5230 HYD.THAL 66.000 0.88095 0.96160 1.10000 0.90000 SINGLE 158 5240 ADHIKOT 66.000 0.89154 0.98560 1.10000 0.90000 SINGLE 162 5220 MANKERA 66.000 0.87821 0.97254 1.10000 0.90000 SINGLE 162 5230 HYD.THAL 66.000 0.86454 0.96160 1.10000 0.90000 SINGLE 163 5042 FAZAL 132.00 0.69882 0.99695 1.10000 0.90000 SINGLE 163 5043 RAKH DAGRAN 132.00 0.70541 0.99010 1.10000 0.90000 SINGLE 163 5044 DERYA KHAN R132.00 0.69828 0.98655 1.10000 0.90000 SINGLE 163 5045 KALOOR KOT 132.00 0.80979 0.99359 1.10000 0.90000 SINGLE 163 5200 BHAKKAR 66.000 0.69132 1.03825 1.10000 0.90000 SINGLE 163 5210 BEHAL 66.000 0.64261 1.01233 1.10000 0.90000 SINGLE 163 5220 MANKERA 66.000 0.53916 0.97254 1.10000 0.90000 SINGLE 163 5230 HYD.THAL 66.000 0.51433 0.96160 1.10000 0.90000 SINGLE 163 7455 BHAKKAR 132.00 0.72331 0.98100 1.10000 0.90000 SINGLE 164 5042 FAZAL 132.00 0.85915 0.99695 1.10000 0.90000 SINGLE 164 5043 RAKH DAGRAN 132.00 0.80989 0.99010 1.10000 0.90000 SINGLE 164 5044 DERYA KHAN R132.00 0.80435 0.98655 1.10000 0.90000 SINGLE 164 5045 KALOOR KOT 132.00 0.75685 0.99359 1.10000 0.90000 SINGLE 164 5200 BHAKKAR 66.000 0.73658 1.03825 1.10000 0.90000 SINGLE 164 5210 BEHAL 66.000 0.69072 1.01233 1.10000 0.90000 SINGLE 164 5220 MANKERA 66.000 0.58495 0.97254 1.10000 0.90000 SINGLE 164 5230 HYD.THAL 66.000 0.56057 0.96160 1.10000 0.90000 SINGLE 164 7455 BHAKKAR 132.00 0.76094 0.98100 1.10000 0.90000 SINGLE 166 5043 RAKH DAGRAN 132.00 0.81812 0.99010 1.10000 0.90000 SINGLE 166 5044 DERYA KHAN R132.00 0.81270 0.98655 1.10000 0.90000 SINGLE 166 5045 KALOOR KOT 132.00 0.88048 0.99359 1.10000 0.90000 SINGLE 166 5200 BHAKKAR 66.000 0.81753 1.03825 1.10000 0.90000 SINGLE 166 5210 BEHAL 66.000 0.77879 1.01233 1.10000 0.90000 SINGLE 166 5220 MANKERA 66.000 0.67609 0.97254 1.10000 0.90000 SINGLE 166 5230 HYD.THAL 66.000 0.65404 0.96160 1.10000 0.90000 SINGLE 166 7455 BHAKKAR 132.00 0.82317 0.98100 1.10000 0.90000 SINGLE 168 5220 MANKERA 66.000 0.87419 0.97254 1.10000 0.90000 SINGLE 168 5230 HYD.THAL 66.000 0.86035 0.96160 1.10000 0.90000 SINGLE 169 5042 FAZAL 132.00 0.88488 0.99695 1.10000 0.90000 SINGLE 169 5043 RAKH DAGRAN 132.00 0.84336 0.99010 1.10000 0.90000 SINGLE 169 5044 DERYA KHAN R132.00 0.83826 0.98655 1.10000 0.90000 SINGLE 169 5200 BHAKKAR 66.000 0.78828 1.03825 1.10000 0.90000 SINGLE 169 5210 BEHAL 66.000 0.74698 1.01233 1.10000 0.90000 SINGLE 169 5220 MANKERA 66.000 0.64131 0.97254 1.10000 0.90000 SINGLE 169 5230 HYD.THAL 66.000 0.61813 0.96160 1.10000 0.90000 SINGLE 169 7455 BHAKKAR 132.00 0.80147 0.98100 1.10000 0.90000 SINGLE 171 5120 MAKARWAL 66.000 0.88729 1.01808 1.10000 0.90000 SINGLE 196 5476 T-BHERA 132.00 0.59564 1.02169 1.10000 0.90000 SINGLE 196 5478 BHERA.IN 132.00 0.58336 1.01705 1.10000 0.90000 SINGLE 196 5480 H.FAQIRN 132.00 0.60249 1.01643 1.10000 0.90000 SINGLE 196 5700 PATANKOT 66.000 0.83558 1.00408 1.10000 0.90000 SINGLE 196 5705 T-PATHAN 66.000 0.85780 1.00915 1.10000 0.90000 SINGLE 196 5710 BHALWAL 66.000 0.83558 1.00408 1.10000 0.90000 SINGLE 196 5720 H.FAQIRN 66.000 0.66391 1.00819 1.10000 0.90000 SINGLE 196 5770 BHABRA 66.000 0.59083 0.97160 1.10000 0.90000 504760-01-A4 77 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 226 5480 H.FAQIRN 132.00 0.83874 1.01643 1.10000 0.90000 SINGLE 226 5720 H.FAQIRN 66.000 0.85330 1.00819 1.10000 0.90000 SINGLE 226 5770 BHABRA 66.000 0.80262 0.97160 1.10000 0.90000 SINGLE 239 7860 GARMHRJA 66.000 1.11054 1.04346 1.10000 0.90000 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 140 : OPEN LINE FROM BUS 5000 [DAUDKHLO 132.00] TO BUS 5020 [MIANWALI 132.00] CKT 1 SINGLE 158 : OPEN LINE FROM BUS 5030 [WANBUCHN 132.00] TO BUS 5410 [QUAIDABD 132.00] CKT 1 SINGLE 162 : OPEN LINE FROM BUS 5032 [CHASHM-L 132.00] TO BUS 5040 [PIPLAN 132.00] CKT 1 SINGLE 163 : OPEN LINE FROM BUS 5040 [PIPLAN 132.00] TO BUS 5042 [FAZAL 132.00] CKT 1 SINGLE 164 : OPEN LINE FROM BUS 5040 [PIPLAN 132.00] TO BUS 5045 [KALOOR KOT 132.00] CKT 2 SINGLE 166 : OPEN LINE FROM BUS 5042 [FAZAL 132.00] TO BUS 5043 [RAKH DAGRAN 132.00] CKT 1 SINGLE 168 : OPEN LINE FROM BUS 5043 [RAKH DAGRAN 132.00] TO BUS 7455 [BHAKKAR 132.00] CKT 1 SINGLE 169 : OPEN LINE FROM BUS 5045 [KALOOR KOT 132.00] TO BUS 7455 [BHAKKAR 132.00] CKT 2 SINGLE 171 : OPEN LINE FROM BUS 5100 [DAUDKHEL 66.000] TO BUS 5120 [MAKARWAL 66.000] CKT 1 SINGLE 196 : OPEN LINE FROM BUS 5419 [LUDWLA-N 132.00] TO BUS 5476 [T-BHERA 132.00] CKT 1 SINGLE 226 : OPEN LINE FROM BUS 5476 [T-BHERA 132.00] TO BUS 5480 [H.FAQIRN 132.00] CKT 1 SINGLE 239 : OPEN LINE FROM BUS 7850 [AHMDPRSL 66.000] TO BUS 7860 [GARMHRJA 66.000] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 4477 TTSINGHN 132.00 4490*JHANG 132.00 1 SINGLE 85 112.0 117.3 109.1 % 4470 GOJRA 132.00 4471*T-HBSHAH 132.00 1 SINGLE 91 112.0 112.1 102.3 4477 TTSINGHN 132.00 4490*JHANG 132.00 1 SINGLE 91 112.0 110.3 101.4 4470 GOJRA 132.00 4471*T-HBSHAH 132.00 1 SINGLE 108 112.0 118.4 109.0 5040 PIPLAN 132.00 5045*KALOOR KOT 132.00 2 SINGLE 163 112.0 119.5 131.8 5045 KALOOR KOT 132.00 7455*BHAKKAR 132.00 2 SINGLE 163 112.0 101.9 125.7 5040 PIPLAN 132.00 5042*FAZAL 132.00 1 SINGLE 164 112.0 115.5 120.0 5042 FAZAL 132.00 5043*RAKH DAGRAN 132.00 1 SINGLE 164 112.0 99.5 109.7 5040 PIPLAN 132.00 5045*KALOOR KOT 132.00 2 SINGLE 166 112.0 101.5 102.9 5040 PIPLAN 132.00 5042*FAZAL 132.00 1 SINGLE 169 112.0 106.8 107.8 5200 BHAKKAR 66.000 7455*BHAKKAR 132.00 1 SINGLE 169 40.0 40.0 100.1 5480 H.FAQIRN 132.00 5720*H.FAQIRN 66.000 1 SINGLE 196 32.0 36.7 114.6 5600 LUDEWALA 66.000 5710*BHALWAL 66.000 1 SINGLE 196 39.0 42.3 129.7 5710 BHALWAL 66.000 5720*H.FAQIRN 66.000 1 SINGLE 196 39.0 36.4 140.8 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 85 : OPEN LINE FROM BUS 4470 [GOJRA 132.00] TO BUS 4471 [T-HBSHAH 132.00] CKT 1 SINGLE 91 : OPEN LINE FROM BUS 4470 [GOJRA 132.00] TO BUS 4490 [JHANG 132.00] CKT 1 SINGLE 108 : OPEN LINE FROM BUS 4477 [TTSINGHN 132.00] TO BUS 4490 [JHANG 132.00] CKT 1 SINGLE 163 : OPEN LINE FROM BUS 5040 [PIPLAN 132.00] TO BUS 5042 [FAZAL 132.00] CKT 1 SINGLE 164 : OPEN LINE FROM BUS 5040 [PIPLAN 132.00] TO BUS 5045 [KALOOR KOT 132.00] CKT 2 504760-01-A4 78 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 166 : OPEN LINE FROM BUS 5042 [FAZAL 132.00] TO BUS 5043 [RAKH DAGRAN 132.00] CKT 1 SINGLE 169 : OPEN LINE FROM BUS 5045 [KALOOR KOT 132.00] TO BUS 7455 [BHAKKAR 132.00] CKT 2 SINGLE 196 : OPEN LINE FROM BUS 5419 [LUDWLA-N 132.00] TO BUS 5476 [T-BHERA 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. Sr.No. Rinforcement Required 1 2 3 4 5 New single cct. On Rail From 132 KV T.T.Singh New to 132 KV Jhang city. Conversion from 66 KV Bhabra to 132 KV Bhabra Conversion from 66 KV Pathan Kot to 132 KV Pathan kot Conversion from 66 KV Noshara Skaser to 132 KVNoshara Skaser New Double cct. On Rail From 132 KV T.T.Singh New to 132 KV H.B Shah With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed FESCO base case for Year2016 with the above mentioned system reinforcements are shown in Appendix-4 (spread over 6 Sheets). 7.1.14 “MEPCO” Distribution System for Year-2016 The Year-2016 base case was studied based on the planning criteria described in Section 12.5. The total load of MEPCO by Year-2016 is 4,045 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.08 pu], some low voltage problems were recorded within the MEPCO system as given below. As mentioned in the MEPCO-2015 analysis, the upper voltage limit for MEPCO system was set to 1.08 pu instead of 1.05 pu due to the radial nature of the system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0800: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: 504760-01-A4 79 Disco Transmission Expansion Plan National Power System Expansion Plan BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 6415 CHISTIAN 66.000 6 0.9041 59.673 6480 MNCHNBAD BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 6450 DHARNWLA 66.000 6 0.8191 54.061 6490 MCLD.GNJ 66.000 6 0.8581 56.634 66.000 6 0.8874 58.567 61621 BREWLA-O T-111.000 6 0.9407 10.348 64501 DHARNWLA T-111.000 6 0.8061 8.867 64801 MNCHNBAD T-111.000 6 0.8763 9.640 64802 MNCHNBAD T-211.000 6 0.9085 9.994 64901 MCLD.GNJ T-111.000 6 0.8840 9.724 65201 FORT ABB T-111.000 6 0.9417 10.359 70021 KASSOWAL T-111.000 6 0.8945 9.839 70041 CHAK-83 T-1 11.000 6 0.9408 10.349 70101 KACHAKHU T-111.000 6 0.9460 10.406 74561 CHOKAZAM T1 11.000 6 0.8613 79651 JLALPRPW T-111.000 6 0.9361 10.297 79652 JLALPRPW T-211.000 6 0.9220 10.142 9.475 -------------------------------------------------------------------------------- Line/Transformer Overloads: Some overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 6175 LUDDEN 132.00* 6 61752 LUDDEN T-2 11.000 6 1 13.7 13.0 105.6 6178 KARAMPUR 132.00* 6 61781 KARAMPUR T-111.000 6 1 13.2 13.0 101.2 6450 DHARNWLA 66.000* 6 64501 DHARNWLA T-111.000 6 1 17.9 13.0 137.5 6490 MCLD.GNJ 66.000* 6 64901 MCLD.GNJ T-111.000 6 1 15.0 13.0 115.3 7002 KASSOWAL 132.00* 6 70021 KASSOWAL T-111.000 6 1 28.3 26.0 109.0 7030 KABIRWLA 132.00* 6 70302 KABIRWLA T-211.000 6 1 29.8 26.0 114.6 7075 MUKHDM.R 132.00* 6 70752 MUKHDM.R T-211.000 6 1 19.6 13.0 151.1 7145 BPUR CANTT 132.00* 6 71452 BPCANTT T-2 11.000 6 1 35.1 26.0 135.0 7147 KARORPCA 132.00* 6 71472 KARORPCA T-211.000 6 1 27.6 26.0 106.3 7178 CHAK 139 132.00* 6 71781 CHAK 139 T-111.000 6 1 31.1 26.0 119.6 7225 R.Y.KHN2 132.00* 6 72251 R.Y.KHN2 T-111.000 6 1 35.1 26.0 134.9 7285 QASIMPUR 132.00* 6 66.000 6 2 55.6 37.0 150.4 7332 N.A.WALI 132.00* 6 73321 N.A.WALI T-111.000 6 1 26.3 26.0 101.1 7456 CHOKAZAM 132.00* 6 74561 CHOKAZAM T1 11.000 6 1 27.0 13.0 207.7 7460 D.G.KHAN 132.00* 6 66.000 6 1 34.5 31.5 109.4 7590 SKHISRWR 132.00* 6 75901 SKHISRWR T-111.000 6 1 8.4 6.3 133.1 7965 JLALPRPW 66.000* 6 79651 JLALPRPW T-111.000 6 1 19.6 13.0 150.9 7965 JLALPRPW 66.000* 6 79652 JLALPRPW T-211.000 6 1 20.2 13.0 155.1 7955 QASIMPUR 7910 D.G.KHAN -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), some system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. 504760-01-A4 80 Disco Transmission Expansion Plan National Power System Expansion Plan Sub Station Transformer 2016 Associated Transmission Lines NO. KV Proposed MVA Karampur Khanewal Ludden Sahuka T-2 T-4 T-2 T-3 132/11 132/11 132/11 132/11 Augmentation Extension Augmentation Extension 26 40 26 26 Chistian T-2 66/11 Conversion 13 2016-220 kv Chishtian Chishtian .56 KM Lynx Dahranwala T-1 66/11 Conversion 13 2016 - Chishtian - Dahranwala S/C 35 km Rail Dahranwala T-2 66/11 Conversion 13 Faqirwali T-1 66/11 Conversion 26 Fort Abbas T-1 66/11 Conversion 26 Minchinabad T-1 66/11 Conversion 26 2016 - Bahawal Nagar Minchinabad S/C 43 KM Lynx Mwcleod Gunj T-1 66/11 Conversion 26 2016 - Minchinabad - Mclod Gunj S/C 21 KM Lynx Chowk Azam T-2 132/11 Augmentation 26 Jalal Pur Pirwala T-1 66/11 Conversion 26 Jalal Pur Pirwala Jam Pur Jam Pur Kabirwala Khan Pur Khair pur Sadat Noor Ahmad Wali Rahim Yar Khan II Sakhi Sarwar Taunsa T-1 T-1 T-2 T-3 T-2 T-1 T-1 T-2 T-1 T-2 66/11 132 132/11 132/11 132/11 132/11 132/11 132/11 132/11 Augmentation Extension Extension Augmentation Augmentation Augmentation Augmentation Augmentation Augmentation 26 26 26 26 40 26 40 40 13 26 Chotti T-1 66/11 Conversion 13 Dajal Nawan Kot Shah Sadar Din Shadun Lund K.P.Baga Sher Chak 139 / 15 L R.Y.Khan 3 R.Y.Khan 4 T-1 T-1 T-1 T-1 66/11 66/11 66/11 66/11 T-1 T-2 132/11 132/11 Conversion Conversion Conversion Conversion Extension Extension New New 26 13 26 26 26 26 26 26 2016-132 kv Haroonabad - T Faqirwali 22 km, lynx T Faqirwali Faqirwali 2 km 2016- T Faqirwali - Fort Abbas 29 km, lynx 2016 - Shujabad - Jalal Pur Pirwala S/C 45 KM Lynx 2016 - Kot Chutta - Chotti 18 KM Lynx S/C With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. 504760-01-A4 81 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse was recorded. Out-of-Limits Bus Voltages: A few voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 90 <-------- B U S --------> 7006 HEAD SIDHNAI132.00 0.80649 0.97886 1.10000 0.90000 SINGLE 90 7030 KABIRWLA 132.00 0.83136 0.99479 1.10000 0.90000 SINGLE 90 7032 MP.PAHOR 132.00 0.81913 0.98687 1.10000 0.90000 SINGLE 164 7289 JALALPWL 132.00 0.87038 0.95144 1.10000 0.90000 SINGLE 206 7435 PARCO 132.00 0.74090 0.99292 1.10000 0.90000 SINGLE 206 7436 T-PARCO 132.00 0.74118 0.99313 1.10000 0.90000 SINGLE 206 7470 ROJHAN 132.00 0.87890 0.99613 1.10000 0.90000 SINGLE 206 7930 JAMPUR 132.00 0.61257 1.01422 1.10000 0.90000 SINGLE 206 7933 FAZALPUR 132.00 0.57387 0.99681 1.10000 0.90000 SINGLE 206 7951 RAJANPUR 132.00 0.80750 0.98970 1.10000 0.90000 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 90 : OPEN LINE FROM BUS 7030 [KABIRWLA 132.00] TO BUS 7109 [P.GAIB-2 132.00] CKT 1 SINGLE 167 : OPEN LINE FROM BUS 7300 [KAPCO 132.00] TO BUS 7321 [T-GUJRAT 132.00] CKT 1 SINGLE 206 : OPEN LINE FROM BUS 7460 [D.G.KHAN 132.00] TO BUS 7930 [JAMPUR 132.00] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES AND INTERFACES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 7075 MUKHDM.R 132.00 7100*P.GAIB-1 132.00 1 SINGLE 91 112.0 117.0 100.3 7100 P.GAIB-1 132.00 7280*MN.VR.RD 132.00 2 SINGLE 98 112.0 125.4 109.2 7100 P.GAIB-1 132.00 7280*MN.VR.RD 132.00 1 SINGLE 99 112.0 125.4 109.2 7100 P.GAIB-1 132.00 7280*MN.VR.RD 132.00 1 SINGLE 100 112.0 118.6 103.2 7100 P.GAIB-1 132.00 7280*MN.VR.RD 132.00 2 SINGLE 100 112.0 118.6 103.2 7300 KAPCO 132.00 7321*T-GUJRAT 132.00 1 SINGLE 169 112.0 119.0 105.3 7300 KAPCO 132.00 7331*KOTADU-O 132.00 2 SINGLE 170 202.0 295.1 139.9 7300 KAPCO 132.00 7331*KOTADU-O 132.00 1 SINGLE 171 202.0 295.1 139.9 7470 ROJHAN 132.00 7951*RAJANPUR 132.00 1 SINGLE 206 112.0 109.8 121.5 504760-01-A4 82 % Disco Transmission Expansion Plan National Power System Expansion Plan CONTINGENCY LEGEND: LABEL EVENTS SINGLE 91 : OPEN LINE FROM BUS 7050 [JEHANIAN 132.00] TO BUS 7100 [P.GAIB-1 132.00] CKT 2 SINGLE 98 : OPEN LINE FROM BUS 7100 [P.GAIB-1 132.00] TO BUS 7280 [MN.VR.RD 132.00] CKT 1 SINGLE 99 : OPEN LINE FROM BUS 7100 [P.GAIB-1 132.00] TO BUS 7280 [MN.VR.RD 132.00] CKT 2 SINGLE 100 : OPEN LINE FROM BUS 7100 [P.GAIB-1 132.00] TO BUS 7285 [QASIMPUR 132.00] CKT 1 SINGLE 169 : OPEN LINE FROM BUS 7300 [KAPCO 132.00] TO BUS 7330 [MZFRGARH 132.00] CKT 1 SINGLE 170 : OPEN LINE FROM BUS 7300 [KAPCO 132.00] TO BUS 7331 [KOTADU-O 132.00] CKT 1 SINGLE 171 : OPEN LINE FROM BUS 7300 [KAPCO 132.00] TO BUS 7331 [KOTADU-O 132.00] CKT 2 SINGLE 206 : OPEN LINE FROM BUS 7460 [D.G.KHAN 132.00] TO BUS 7930 [JAMPUR 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. No. Transmission Line Additions/Modification KM 1 Reconducting KAPCO to Kot Addu 2/C Rail to 2-B Rail 1.9 2 Reconducting KAPCO to T‐ Gujarat Lynex to Greelay 32 4 Reconducting P‐Gaib‐1 to M Rashid Lynex to Greelay 27 5 Reconducting P‐Gaib‐1 to Vehari Road Lynex to Greelay 7 6 Wapda Town ‐1 to Bosan Road Lynex to Greelay 10 No. Substation Capacitors 1 132 Kv Shujabad 48 MVAR 2 132 Kv Khan Pur 36 MVAR With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed MEPCO base case for Year2016 with the above mentioned system reinforcements are given in Appendix-4 (spread over 8 Sheets). 7.1.15 “HESCO & SEPCO” Distribution System for Year-2016 The Year-2016 base case was studied based on the planning criteria described in Section 12.5. The total load of HESCO and SEPCO by Year-2016 is 2,773 MW. 504760-01-A4 83 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.08 pu], a few voltage problems were recorded within the HESCO and SEPCO systems as given below. The upper voltage limit for was set to 1.08 pu instead of 1.05 pu due to the coverage and radial nature of the system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0800: BUS# X-- NAME --X BASKV AREA 83101 1 11.000 V(PU) V(KV) 7 1.0902 11.992 BUS# X-- NAME --X BASKV AREA 83102 2 11.000 V(PU) V(KV) 7 1.0902 11.992 BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA 8345 THARI MIRWAH66.000 V(PU) V(KV) 7 0.9313 61.463 BUS# X-- NAME --X BASKV AREA 9546 KHIPRO V(PU) V(KV) 66.000 7 0.9487 62.617 80701 1 11.000 7 0.9495 10.445 80702 2 11.000 7 0.9495 10.445 81003 3 11.000 7 0.9451 10.396 81202 2 11.000 7 0.9160 10.076 81302 2 11.000 7 0.9278 10.206 81403 3 11.000 7 0.9310 10.241 81411 1 11.000 7 0.9183 10.102 83411 1 11.000 7 0.9201 10.121 83412 2 11.000 7 0.9187 10.106 83611 1 11.000 7 0.9079 83612 2 11.000 7 0.9079 95461 1 11.000 7 0.9417 10.359 9.987 9.987 -------------------------------------------------------------------------------- Line/Transformer Overloads: A few marginal overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 8141 MAHRABPR 132.00* 7 81411 1 11.000 7 1 15.1 13.0 116.5 8150 N.FEROZE 132.00* 7 81501 1 11.000 7 1 27.0 26.0 103.8 8150 N.FEROZE 132.00* 7 81502 2 11.000 7 1 26.7 26.0 102.5 8185 KASHMORE 132.00* 7 81851 1 11.000 7 1 13.3 13.0 102.1 8185 KASHMORE 132.00* 7 81852 2 11.000 7 1 13.3 13.0 102.1 8250 LARKAN-2 132.00* 7 82501 1 11.000 7 1 41.6 40.0 104.0 8250 LARKAN-2 132.00* 7 82502 2 11.000 7 1 42.6 40.0 106.6 9020 N.S.SNGR 132.00* 7 90202 2 11.000 7 1 13.1 13.0 100.6 9100 TANDOJAM 132.00* 7 91002 2 11.000 7 1 13.5 13.0 103.9 9150 PHULLELI 132.00* 7 91503 3 11.000 7 1 26.1 26.0 100.4 504760-01-A4 84 Disco Transmission Expansion Plan National Power System Expansion Plan 9160 HYDNTPS 132.00* 7 91601 1 11.000 7 1 41.4 40.0 103.5 9163 KOHSAR 132.00* 7 91632 2 11.000 7 1 26.3 26.0 101.0 9290 SUJAWAL 132.00* 7 92902 2 11.000 7 1 13.3 13.0 102.0 9546 KHIPRO 66.000* 7 95461 1 11.000 7 1 13.1 13.0 100.5 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), some system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. Under HESCO: 1. Addition of 4.8 MVAR Capacitor Bank at T-2 of 132KV Grid Station N.S SNGR (9020). 2. Addition of 4.8 MVAR Capacitor Bank at T-2 of 132KV Grid Station Tando Jam (9100). 3. Augmentation of T-3 20/26MVA Power Transformer, with 40 MVA at 132KV Grid Station Phulleli (9150). 4. Augmentation of T-1 20/26 MVA Power Transformer, with 40 MVA at 132KV Grid Station N.T.P.S (9160), after this all Power Transformers will be 40 MVA. 5. Augmentation of T-1 10/13 MVA Power Transformer, with 40 MVA at 132KV Grid Station Kohsar (9163). 6. Addition of 4.8 MVAR Capacitor Bank at T-2 of 132KV Grid Station Sujawal (9290). 7. Addition of another 66/11KV, 10/13 MVA Power Transformer at 66KV Grid Station Khipro (9546). Under SEPCO: 1. Addition of another 132/11KV, 10/13 MVA Power Transformer at 132KV Grid Station Mahrabpur (8141). 2. Addition of 3rd 132/11KV, 20/26 MVA Power Transformer at 132KV Grid Station N. Feroze (8150). 504760-01-A4 85 Disco Transmission Expansion Plan National Power System Expansion Plan 3. Augmentation of T-1 & T-2 Power Transformers, with 20/26 MVA at 132KV Grid Station Kashmore (8185). 4. Shifting of 20 MW Load from 132KV Grid Station Larkana-2 (8250) to 132KV Larkana Old (8255) & 132KV Larkana-3 Grid Stations (8256). 10 MW has been added / shifted to each Grid Station. 5. Augmentation of both 10/13 MVA Power Transformers with 20/26MVA at 132KV Grid Station Larkana-3 (8256). With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded Out-of-Limits Bus Voltages: Many voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 48 <-------- B U S --------> 8145 THARU SHAH 132.00 0.84477 0.96526 1.10000 0.90000 SINGLE 48 8150 N.FEROZE 132.00 0.84686 0.96703 1.10000 0.90000 SINGLE 48 8361 PADIDAN 132.00 0.83735 0.95901 1.10000 0.90000 SINGLE 50 8142 NEW JATOI 132.00 0.83867 1.00134 1.10000 0.90000 SINGLE 50 8160 MORO 132.00 0.82229 1.01055 1.10000 0.90000 SINGLE 53 8174 SEHWAN 132.00 0.89365 1.02148 1.10000 0.90000 SINGLE 53 8175 BHAN SAEDABD132.00 0.87261 1.03844 1.10000 0.90000 SINGLE 53 8177 PARCO 132.00 0.87753 1.03334 1.10000 0.90000 SINGLE 73 8200 THULL 132.00 0.86409 0.99922 1.10000 0.90000 SINGLE 73 8205 JACOBABAD 132.00 0.85288 1.00760 1.10000 0.90000 SINGLE 73 8215 JACOBABAD-II132.00 0.85242 1.00534 1.10000 0.90000 SINGLE 78 8200 THULL 132.00 0.81851 0.99922 1.10000 0.90000 SINGLE 78 8205 JACOBABAD 132.00 0.80133 1.00760 1.10000 0.90000 SINGLE 78 8215 JACOBABAD-II132.00 0.80138 1.00534 1.10000 0.90000 SINGLE 78 8221 HAMAYOON 132.00 0.79754 1.02538 1.10000 0.90000 SINGLE 90 8241 MIROKHAN 132.00 0.87475 1.00678 1.10000 0.90000 SINGLE 90 8485 SHADADKT 132.00 0.87852 0.99771 1.10000 0.90000 SINGLE 90 8500 GHARI KHAIRO66.000 0.85607 1.00107 1.10000 0.90000 SINGLE 94 8500 GHARI KHAIRO66.000 0.89707 1.00107 1.10000 0.90000 SINGLE 100 8252 WARAH 132.00 0.89753 0.98321 1.10000 0.90000 SINGLE 174 9494 SAMARO 66.000 0.89027 1.02272 1.10000 0.90000 SINGLE 174 9506 PITHORO 66.000 0.88129 1.01602 1.10000 0.90000 SINGLE 174 9595 KUNRI 66.000 0.89530 1.00807 1.10000 0.90000 504760-01-A4 86 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 240 9486 BADIN 66.000 0.89131 1.05017 1.10000 0.90000 SINGLE 240 9487 T/T.BAGO 66.000 0.89558 1.02694 1.10000 0.90000 SINGLE 240 9488 TANDO BAGO 66.000 0.89224 1.02410 1.10000 0.90000 SINGLE 240 9490 KADHAN 66.000 0.88124 1.04485 1.10000 0.90000 SINGLE 260 9515 T-KALOI 66.000 0.87540 1.00776 1.10000 0.90000 SINGLE 260 9516 KALOI 66.000 0.86223 0.99703 1.10000 0.90000 SINGLE 260 9518 PANGIRO 66.000 0.87931 1.00792 1.10000 0.90000 -------------------------------------------------------------------------------Due to the volume of the output, contingency list was omitted. Line/Transformer Overloads: Three marginal line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 9220 T.M.KHAN 132.00 9471*MATLI NEW 132.00 2 SINGLE 196 112.0 113.9 102.0 % 9220 T.M.KHAN 132.00 9471*MATLI NEW 132.00 1 SINGLE 197 112.0 113.9 102.0 9514*NOUKOT 66.000 9515 T-KALOI 66.000 1 SINGLE 240 39.0 39.4 100.8 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 196 : OPEN LINE FROM BUS 9220 [T.M.KHAN 132.00] TO BUS 9471 [MATLI NEW 132.00] CKT 1 SINGLE 197 : OPEN LINE FROM BUS 9220 [T.M.KHAN 132.00] TO BUS 9471 [MATLI NEW 132.00] CKT 2 SINGLE 240 : OPEN LINE FROM BUS 9485 [BADIN 132.00] TO BUS 9486 [BADIN 66.000] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. Under HESCO: 1. Second Circuit from 132KV Grid Station T.M Khan (9220) to Matli New Grid Station (9471) with Greeley Conductor & Reconductoring of existing circuit from (9471) to New Matli (at this time this circuit is express from T.M Khan, and feeding to 132KV Grid Station Badin, (9485). 2. Add 1.2 MVAR capacitor Bank at T-1 of 66KV Grid Station Kaloi (9516). 504760-01-A4 87 Disco Transmission Expansion Plan National Power System Expansion Plan Under SEPCO: 1. New 132KV SDT Transmission Line from Dadu New (8170) – Moro (8160) Nausheroferoze (8150) with Greeley Conductor. 2. Second circuit from New Shikarpur (8219) – Hamyoon (8221) – Jacobabad-I Grid Station (8205) with Lynx Conductor. 3. Second circuit from 132KV Grid Station Ratodero (8240) – Miro Khan Grid Station (8241) with Greeley Conductor. 4. Second circuit from 132KV Dadu New (8170) – Bhan Saeedabad Grid Station (8175) with Lynx Conductor. With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed HESCO and SEPCO base case for Year-2016 with the above mentioned system reinforcements are given in Appendix-4 (spread over 11 Sheets). 7.1.16 “QESCO” Distribution System for Year-2016 The Year-2016 base case was studied based on the planning criteria described in Section 12.5. The total load of QESCO by Year-2016 is 1,827 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], two marginal low voltage problems were recorded within the QESCO system as given below. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: 504760-01-A4 88 Disco Transmission Expansion Plan National Power System Expansion Plan BUS# X-- NAME --X BASKV AREA 8510 USTAMOHD 132.00 V(PU) V(KV) 8 0.9467 124.97 BUS# X-- NAME --X BASKV AREA 8515 JHAL MGS 132.00 V(PU) V(KV) 8 0.9414 124.27 -------------------------------------------------------------------------------- Line/Transformer Overloads: Three overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 645 MASTUNG 220.00* 15 9780 MASTUNG 132.00 8 1 382.9 320.0 119.7 970 QUETTA 220.00* 15 9660 QUETTAIN 132.00 8 1 607.8 480.0 126.6 8510 USTAMOHD 132.00* 8 11.000 8 1 26.1 26.0 100.3 85102 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), one line was added to solve the (N-0) violations, as follows. 1. 132 KV Usta Muhammad (85102) = fixed shunt of 7.2 MVAR With the above line addition, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outage would lead to area collapse was recorded. Out-of-Limits Bus Voltages: Only one contingency would lead to a few low voltage problems was recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 101 <-------- B U S --------> 9810 NOSHKI 132.00 0.89666 0.99000 1.10000 0.90000 SINGLE 101 9813 MAL 132.00 0.86275 0.98112 1.10000 0.90000 SINGLE 101 9850 GIDDER 132.00 0.72286 0.98991 1.10000 0.90000 SINGLE 101 9855 KHARAN 132.00 0.81230 0.98217 1.10000 0.90000 504760-01-A4 89 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 101 9857 DLBINDIN 132.00 0.84793 0.99402 1.10000 0.90000 SINGLE 101 9858 CHAGAI 132.00 0.87626 0.99297 1.10000 0.90000 SINGLE 101 9859 BASIMA 132.00 0.74876 0.98872 1.10000 0.90000 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 101 : OPEN LINE FROM BUS 9840 [SURAB 132.00] TO BUS 9850 [GIDDER 132.00] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES AND INTERFACES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 9660 QUETTAIN 132.00 9670*SARYAB 132.00 2 SINGLE 32 112.0 118.7 106.6 % 9660 QUETTAIN 132.00 9670*SARYAB 132.00 1 SINGLE 33 112.0 118.7 106.6 9660*QUETTAIN 132.00 9700 Q.S.MAND 132.00 1 SINGLE 44 112.0 117.9 101.9 9713 HURAMZAI 132.00 9715*YARU 132.00 2 SINGLE 59 112.0 115.4 101.3 9713 HURAMZAI 132.00 9715*YARU 132.00 1 SINGLE 60 112.0 115.4 101.3 9781 K-KOCHA 132.00 9820*MANGOCHR 132.00 1 SINGLE 81 112.0 119.2 111.4 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 32 : OPEN LINE FROM BUS 9660 [QUETTAIN 132.00] TO BUS 9670 [SARYAB 132.00] CKT 1 SINGLE 33 : OPEN LINE FROM BUS 9660 [QUETTAIN 132.00] TO BUS 9670 [SARYAB 132.00] CKT 2 SINGLE 44 : OPEN LINE FROM BUS 9690 [MARIABAD 132.00] TO BUS 9700 [Q.S.MAND 132.00] CKT 1 SINGLE 59 : OPEN LINE FROM BUS 9713 [HURAMZAI 132.00] TO BUS 9715 [YARU 132.00] CKT 1 SINGLE 60 : OPEN LINE FROM BUS 9713 [HURAMZAI 132.00] TO BUS 9715 [YARU 132.00] CKT 2 SINGLE 81 : OPEN LINE FROM BUS 9780 [MASTUNG 132.00] TO BUS 9820 [MANGOCHR 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. 1. Line bay (In/out) at 132 KV Kad Kucha Grid Station (9781) 2. Additional SDT circuit with Rail conductor from Kad Kucha (9781) to Mangocher (9820) 3. Re-conducting of 1st CKT Huramzai (9713) to Yaru (9715) from Lynx to Greeley 4. Installation of additional fixed shunt at T-1 & T-2 (9850) = 1.2 MVAR each 5. Installation of 132 KV Capacitor Bank of 24 MVAR at Kharan (9855) 504760-01-A4 90 Disco Transmission Expansion Plan National Power System Expansion Plan 6. Reconductoring of 1st circuit from Quetta Industrial to Q.S.Manda with Greeley conductor 7. Stringing of 3rd circuit from Quetta Industrial – Sariab with Lynx conductor With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed QESCO base case for Year2016 with the above mentioned system reinforcements are given in Appendix-4 (spread over 5 Sheets). 7.1.17 Year-2018 Study Base Cases As mentioned in the methodology (Section 12.6), each DISCO has prepared the Year2018 case based of the following: a) The final Year-2016 case with all reinforcements developed in Section 12.7.2 b) Load forecast of Year-2018 The load flow results are given for each DISCO independently in three main activities. a) Analyzing the developed case under both normal (N-0) and contingency (N-1) conditions b) Identifying system reinforcements as appropriate c) Re-checking the system under (N-0) and (N-1) with system reinforcements 7.1.18 “PESCO & TESCO” Distribution System for Year-2018 The Year-2018 base case was studied based on the planning criteria described in Section 12.5. The total loads of PESCO and TESCO by Year-2018 are 3,452 MW and 1,166 MW, respectively (combined: 4,618 MW). 504760-01-A4 91 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], many low voltage problems were recorded within the PESCO and TESCO systems as given below. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA 1128 DIR 132.00 1144 MADYAN 1250 LANDIKOT 1260 PESHCANT 132.00 1 0.9494 125.32 1302 GURGURI 132.00 1 0.9320 123.02 1309 GHILJO 66.000 10 0.9361 61.786 1312 HANGU 132.00 1 0.9373 123.73 1315 TALL 132.00 1 0.9075 119.79 1316 TALL 66.000 1 0.9367 61.821 1317 KORAIZ 132.00 10 0.9304 122.81 1344 T-MIRALI 132.00 1 0.9234 121.89 1345 S.NURANG 132.00 1 0.9438 124.58 1346 MIR ALI 132.00 10 0.9126 120.46 1350 MIRANSHA 132.00 10 0.9183 121.22 1351 DATAKHEL 132.00 10 0.9080 119.86 1352 GHALANAI 132.00 10 0.9442 124.64 1355 RAZMAK 132.00 10 0.9072 119.74 1390 BATAL 132.00 1 0.9429 124.46 1394 THAKOT 132.00 1 0.9271 122.38 1395 PATTAN 33.000 1 0.9385 30.970 1535 LAKARAI 132.00 10 0.9223 121.75 1601 T-SSPS 66.000 1 0.9113 60.145 1602 WARSAK-D 66.000 1 0.8960 59.133 1605 SSPS 66.000 10 0.9105 60.096 1675 WARAI 66.000 1 0.9379 61.899 1686 KHAR BAJAWAR132.00 10 0.9209 121.56 1690 DIR 66.000 1 0.9301 61.389 1720 KALAYA 132.00 10 0.9417 124.31 1750 ALIZAI 66.000 10 0.9084 59.956 1755 SADDA 132.00 10 0.8356 110.30 1775 PARACINA 132.00 10 0.7849 103.61 1780 BANNU 66.000 1 0.9048 59.720 1790 KRM.GRHI 66.000 1 0.8606 56.800 1830 PEZU 132.00 1 0.9356 123.50 1870 KULACHI 66.000 1 0.9337 61.625 1872 T-KULCHI 66.000 1 0.9487 62.614 1880 DARABAN 66.000 1 0.9134 60.286 1900 ABBOTABD 66.000 1 0.7682 50.701 1920 T-HAVLAN 66.000 1 0.8194 54.079 1930 HARIPUR 66.000 1 0.9021 59.539 2015 MUZAFBAD 132.00 1 0.9403 124.11 5015 TAJAZAI 132.00 1 0.9382 123.84 10691 T1 11.000 1 0.9296 10.226 10692 T2 11.000 1 0.9296 10.226 10752 T2 11.000 1 0.9497 10.446 10781 T1 11.000 1 0.9390 10.329 10782 T2 11.000 1 0.9390 10.329 10803 T3 11.000 1 0.9385 10.324 11251 T2 11.000 1 0.9496 10.446 11253 T4 11.000 1 0.9496 10.446 11261 T1 11.000 1 0.9387 10.326 11301 T2 11.000 1 0.9172 10.090 11302 T3 11.000 1 0.9426 10.368 11402 T2 11.000 1 0.9333 10.266 11403 T3 11.000 1 0.9472 10.419 11404 T4 11.000 1 0.9354 10.290 11405 T5 11.000 1 0.9419 10.361 11421 T1 11.000 1 0.9251 10.176 11442 T2 11.000 1 0.9121 10.033 11601 T1 11.000 1 0.9490 10.439 11731 T1 11.000 1 0.9392 10.331 11732 T2 11.000 1 0.9392 10.331 11803 T3 11.000 1 0.9262 10.189 11821 T1 11.000 1 0.9478 10.426 11852 T2 11.000 1 0.9291 10.220 12452 T2 11.000 1 0.9340 10.274 12501 T1 11.000 10 0.9105 10.016 504760-01-A4 1 0.9226 121.78 1142 K.KHELA 132.00 132.00 1 0.9172 121.07 1146 SHANGLAP 132.00 1 0.9190 121.31 132.00 10 0.9299 122.75 1255 KHYBER AGENC132.00 10 0.9362 123.58 92 1 0.9260 122.23 Disco Transmission Expansion Plan National Power System Expansion Plan 12502 T2 11.000 10 0.9105 10.016 12503 T3 11.000 1 0.9105 10.016 12551 T1 11.000 10 0.9418 10.360 12552 T2 11.000 10 0.9418 10.360 12573 T3 11.000 1 0.9347 10.281 12602 T2 11.000 1 0.9484 10.432 12604 T4 11.000 1 0.9185 10.103 12701 T1 11.000 1 0.9424 10.367 12702 T2 11.000 1 0.9313 10.244 13021 T1 11.000 1 0.9227 10.150 13061 T1 11.000 1 0.9184 10.103 13062 T2 11.000 1 0.9184 10.102 13072 T2 11.000 1 0.9497 10.447 13091 T1 11.000 10 0.9223 10.146 13121 T1 11.000 1 0.9264 10.190 13122 T2 11.000 1 0.9264 10.190 13151 T2 11.000 1 0.9060 9.967 13152 T3 11.000 1 0.9060 13171 T1 11.000 10 0.9314 10.246 13321 T1 11.000 1 0.9359 10.295 13322 T2 11.000 1 0.9359 10.295 13351 T1 11.000 1 0.9397 10.337 13352 T2 11.000 1 0.9227 10.150 13361 T1 11.000 1 0.9399 10.338 13401 T3 11.000 1 0.9331 10.264 13402 T4 11.000 1 0.9206 10.127 13403 T5 11.000 1 0.9268 10.195 13451 T1 11.000 13452 T2 11.000 1 0.9220 10.143 13461 T1 11.000 10 0.8594 9.453 13462 T2 11.000 10 0.8471 9.318 13463 T3 11.000 10 0.8471 9.318 13502 T1 11.000 10 0.9117 10.028 13503 T2 11.000 10 0.8853 9.738 13504 T3 11.000 10 0.9117 10.028 13511 T1 11.000 10 0.9258 10.184 13512 T2 11.000 10 0.9277 10.205 13551 T3 11.000 10 0.8995 13601 T1 11.000 1 0.9425 10.368 13602 T2 11.000 1 0.9400 10.340 13651 T1 11.000 1 0.9373 10.311 13652 T2 11.000 1 0.9318 10.249 13702 T2 11.000 1 0.9341 10.275 13751 T1 11.000 1 0.9274 10.201 13801 T1 11.000 1 0.9428 10.371 13802 T2 11.000 1 0.9475 10.422 13851 T1 11.000 1 0.9400 10.340 13852 T2 11.000 1 0.9400 10.340 13901 T1 11.000 1 0.9265 10.192 13902 T2 11.000 1 0.9341 10.275 13941 T1 11.000 1 0.9271 10.198 13942 T2 11.000 1 0.9271 10.198 13952 T2 11.000 1 0.9133 10.047 14001 T1 11.000 1 0.9285 10.213 14102 T4 11.000 1 0.9341 10.276 14103 T3 11.000 1 0.9465 10.411 14151 T1 11.000 1 0.9384 10.323 14152 T2 11.000 1 0.9384 10.322 14201 T1 11.000 1 0.9420 10.362 14202 T2 11.000 1 0.9455 10.401 14203 T3 11.000 1 0.9352 10.287 14204 T4 11.000 1 0.9300 10.230 14251 T1 11.000 1 0.9302 10.232 14252 T2 11.000 1 0.9244 10.169 14502 T2 11.000 1 0.9409 10.350 14551 T1 11.000 1 0.9488 10.437 14601 T4 11.000 1 0.9491 10.440 14602 T6 11.000 15351 T1 11.000 10 0.9051 9.956 15352 T2 11.000 10 0.9051 9.956 16021 T1 11.000 1 0.9080 9.988 16022 T2 11.000 1 0.9080 9.988 16051 T1 11.000 10 0.9327 10.259 16702 T2 11.000 1 0.9306 10.237 16751 T1 11.000 1 0.9259 10.185 16861 T1 11.000 10 0.9313 10.244 16862 T2 11.000 10 0.9072 9.979 17501 T1 11.000 10 0.9003 9.904 17551 T1 11.000 10 0.7928 8.720 17552 T2 11.000 10 0.7928 8.720 17751 T1 11.000 10 0.7881 8.670 17752 T2 11.000 10 0.7881 8.670 17753 T3 11.000 10 0.7881 8.670 17901 T1 11.000 1 0.8529 9.382 17902 T2 11.000 1 0.8630 9.493 18301 T1 11.000 1 0.9101 10.011 18701 T1 11.000 1 0.9339 10.273 18901 T1 11.000 1 0.9331 10.265 19001 T1 11.000 1 0.7660 8.426 19002 T2 11.000 1 0.7445 20151 T1 11.000 1 0.9150 10.065 20152 T2 11.000 1 0.9299 10.229 20153 T4 11.000 1 0.9132 10.045 50151 T1 11.000 1 0.9050 50152 T2 11.000 1 0.9234 10.157 74203 T3 11.000 1 0.9472 10.419 9.967 1 0.9107 10.018 9.894 1 0.9491 10.440 8.190 9.955 -------------------------------------------------------------------------------- 504760-01-A4 93 Disco Transmission Expansion Plan National Power System Expansion Plan Line/Transformer Overloads: Some overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A PESCO X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 1080 SWABI 132.00* 1 10803 T3 11.000 1 1 26.5 26.0 101.8 1090 CHARSADA 132.00* 1 10902 T2 11.000 1 1 27.3 26.0 104.9 1130 CHAKDARA 132.00* 1 11301 T2 11.000 1 1 27.3 26.0 104.8 1130 CHAKDARA 132.00* 1 11302 T3 11.000 1 1 27.5 26.0 105.6 1185 PESH CTY 132.00* 1 11851 T1 11.000 1 1 40.1 40.0 100.2 1185 PESH CTY 132.00* 1 11852 T2 11.000 1 1 42.0 40.0 105.1 1185 PESH CTY 132.00* 1 11853 T3 11.000 1 1 41.5 40.0 103.8 1196 PESHFORT 132.00* 1 11961 T1 11.000 1 1 41.9 40.0 104.8 1196 PESHFORT 132.00* 1 11962 T2 11.000 1 1 41.4 40.0 103.5 1240 JAMRUD-I 132.00* 1 12401 T1 11.000 1 1 27.7 26.0 106.4 1240 JAMRUD-I 132.00* 1 12403 T3 11.000 1 1 26.9 26.0 103.6 1240 JAMRUD-I 132.00* 1 12404 T4 11.000 1 1 26.9 26.0 103.6 1257 R-BABA 132.00* 1 12571 T1 11.000 1 1 13.5 13.0 104.2 1257 R-BABA 132.00* 1 12572 T2 11.000 1 1 13.0 13.0 100.1 1257 R-BABA 132.00* 1 12573 T3 11.000 1 1 27.3 26.0 104.9 1270 PESH UNI 132.00* 1 12701 T1 11.000 1 1 43.4 40.0 108.5 1270 PESH UNI 132.00* 1 12702 T2 11.000 1 1 44.1 40.0 110.2 1280 PESH.IND 132.00* 1 12801 T1 11.000 1 1 42.1 40.0 105.2 1280 PESH.IND 132.00* 1 12802 T2 11.000 1 1 27.0 26.0 103.9 1280 PESH.IND 132.00* 1 12803 T3 11.000 1 1 42.8 40.0 107.1 1315 TALL 132.00 1 132.00* 10 1 118.4 112.0 105.7 1360 ABBOTABD 132.00* 1 13601 T1 11.000 1 1 29.9 26.0 114.8 1360 ABBOTABD 132.00* 1 13602 T2 11.000 1 1 30.2 26.0 116.0 1360 ABBOTABD 132.00* 1 13603 T3 11.000 1 1 27.4 26.0 105.3 1375 NATIAGLI 132.00* 1 13751 T1 11.000 1 1 27.7 26.0 106.6 1400 BALAKOT 132.00* 1 14001 T1 11.000 1 1 13.2 13.0 101.3 1418 T-HATTAR 132.00 1 1420 HATTAR 132.00* 1 1 115.5 112.0 103.2 1418 T-HATTAR 132.00* 1 2060 WAH NEW 132.00 2 1 112.9 112.0 100.8 1425 HATTAR-II 132.00* 1 14251 T1 11.000 1 1 28.2 26.0 108.6 1425 HATTAR-II 132.00* 1 14252 T2 11.000 1 1 26.3 26.0 101.0 1445 G.AMAZAI 132.00* 1 14452 T2 11.000 1 1 26.5 26.0 102.0 1675 WARAI 66.000* 1 16751 T1 11.000 1 1 13.1 13.0 101.1 2015 MUZAFBAD 132.00* 1 20152 T2 11.000 1 1 26.0 26.0 100.2 1755 SADDA TESCO X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV 504760-01-A4 AREA BUS# X-- NAME --X BASKV 94 AREA CKT LOADING RATING PERCENT Disco Transmission Expansion Plan National Power System Expansion Plan 1255 KHYBER AGENC132.00* 10 12551 T1 11.000 10 1 28.1 26.0 108.0 1255 KHYBER AGENC132.00* 10 12552 T2 11.000 10 1 28.1 26.0 108.0 1275 BARA 132.00* 10 12751 T1 11.000 10 1 27.3 26.0 104.8 1275 BARA 132.00* 10 12752 T2 11.000 10 1 27.3 26.0 104.8 1275 BARA 132.00* 10 12753 T3 11.000 10 1 27.1 26.0 104.4 1315 TALL 132.00 1 132.00* 10 1 118.4 112.0 105.7 1346 MIR ALI 132.00* 10 13461 T1 11.000 10 1 14.3 13.0 110.1 1346 MIR ALI 132.00* 10 13462 T2 11.000 10 1 29.6 26.0 113.9 1346 MIR ALI 132.00* 10 13463 T3 11.000 10 1 29.6 26.0 113.9 1755 SADDA 132.00* 10 17551 T1 11.000 10 1 26.9 26.0 103.3 1755 SADDA 132.00* 10 17552 T2 11.000 10 2 26.9 26.0 103.3 1755 SADDA -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), many system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. PESCO Reinforcements New Grid Stations: 1. 132 KV Muzafar Abad G/S with 2x20/26 MVA T/Fs, from 132 KV Muzafar Abad G/S length of line 2 KM. 2. 132 KV Jahgra G/S with 2x20/26 MVA T/Fs, In/Out from Peshawar City – Pabbi line Length 6 KM. 3. 132 KV Shergarh G/S with 2x20/26 MVA T/Fs, In/Out form Mardan-II – Chakdara line Length 2 KM. 4. 132 KV Khanpur G/S with 2x10/13 MVA T/Fs, SDT line form Haripur length 23 KM. 5. 132 KV Kabal G/S with 2x10/13 MVA T/Fs, In/Out from Barikot-Swat length 5 KM. 6. 132 KV Rustam G/S with 2x10/13 MVA T/Fs, In/Out form Hussai-Daggar. 7. 132 KV Shakardara with 1x10/13 MVA T/F, 24 KM SDT line from Lachi. 8. 132 KV Doaba with 2x10/13 MVA T/Fs, 35 KM SDT line form Hangu. 9. 132 KV Bara Road with 1x40 and 1x20/26 MVA T/Fs, 7 KM In/Out form S.Muhammadi-Hayat Abad. 504760-01-A4 95 Disco Transmission Expansion Plan National Power System Expansion Plan 10. 132 KV Kurram Garhi with 2x10/13 MVA T/Fs, 7 KM SDT line from Bannu. Augmentations: 1. 20/26 MVA T/F T-1 by 40 MVA at 132 KV Charsadda G/S. 2. 20/26 MVA T/F T-1 by 40 MVA at 132 KV Peshawar Cant G/S. 3. 20/26 MVA T/F T-2 by 40 MVA at 132 KV Peshawar Industrial G/S. 4. 20/26 MVA T/F T-3 by 40 MVA at 132 KV Jamrud G/S. 5. 13 MVA T/F T-1 by 40 MVA at 132 KV Rahman Baba G/S. 6. 10/13 MVA T/F T-1 by 20/26 MVA at 132 KV Balakot G/S. 7. 20/26 MVA T/F T-1 by 40 MVA at 132 KV Hattar-II G/S. 8. 20/26 MVA T/F T-1 by 40 MVA at 132 KV Gadoon Amazai G/S. Extensions: 1. Extension with 20/26 MVA T/F at 132 KV Chakdara G/S. 2. Extension with 40 MVA at 132 KV Abbottabad G/S. 132 kV Capacitors: 1. 24 MVAR Caps at 132 KV Hangu G/S. 11 kV Capacitors: 1. Additional Caps 3.6 MVAR at T-3, 132 KV Swabi G/S. 2. Additional Caps 2.4 MVAR at T-1, 132 KV Shangla G/S. 3. 7.2 MVAR Caps at T-1, 132 KV Nathiagali G/S. 4. 7.2 MVAR Caps at T-1, 132 KV Wari G/S. 5. 2.8 MVAR Caps at T-3, 132 K Peshawar University G/S. 504760-01-A4 96 Disco Transmission Expansion Plan National Power System Expansion Plan Up-Grading of G/S: 1. Up-gradating of 66 KV Wari to 132 KV with 1x20/26 MVA T/F, In/Out line from Timergar-Dir line. 2. Up-gradating of 33 KV Hattian to 132 KV with 1x10/13 MVA T/F, 35 KM SDT line from Muzafarabad. New T/ Lines: 1. New Wah – Hattar 15 KM SDT line with Rail conductor TESCO Reinforcements Augmentations: 1. Aug: of 10/13 MVA T/F T-1 by 20/26 MVA at 132 KV Mir Ali G/S. 2. Aug: of 20/26 MVA T/F T-1 by 40 MVA at 132 KV Bara G/S. 3. Aug: of 20/26 MVA T/F T-1 by 40 MVA at 132 KV Landi Kotal G/S. Extensions: 1. Extension with 20/26 MVA T/F at 132 KV Sadda G/S. 2. Extension with 20/26 MVA T/F at 132 KV Ghalanai G/S. 3. Extension with 20/26 MVA T/F at 132 KV Khyber Agency G/S. 11 kV Capacitors: 1. 7.2 MVAR Caps at T-3, 132 KV Sadda G/S. 2. 7.2 MVAR Caps at T-5, 132 KV Ghalanai G/S. 3. 7.2 MVAR Caps at T-3, 132 KV Khyber Agency G/S. 504760-01-A4 97 Disco Transmission Expansion Plan National Power System Expansion Plan With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: Some low voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 3 <-------- B U S --------> 1080 SWABI 132.00 0.89091 0.97751 1.10000 0.90000 SINGLE 108 1460 TANK 132.00 0.72427 0.98076 1.10000 0.90000 SINGLE 108 1461 GOMAL-ZM 132.00 0.70705 0.97792 1.10000 0.90000 SINGLE 108 1465 WANA 132.00 0.66525 0.95640 1.10000 0.90000 SINGLE 108 1840 TANK-1 66.000 0.72972 1.01376 1.10000 0.90000 SINGLE 108 1850 JANDOLA 66.000 0.64173 0.96561 1.10000 0.90000 SINGLE 108 1870 KULACHI 66.000 0.86816 0.96508 1.10000 0.90000 SINGLE 108 1872 T-KULCHI 66.000 0.88464 0.97924 1.10000 0.90000 SINGLE 108 1880 DARABAN 66.000 0.84664 0.95029 1.10000 0.90000 SINGLE 147 1309 GHILJO 66.000 0.89602 1.03553 1.10000 0.90000 SINGLE 147 1316 TALL 66.000 0.88645 1.04561 1.10000 0.90000 SINGLE 147 1750 ALIZAI 66.000 0.85280 1.02524 1.10000 0.90000 SINGLE 156 1345 S.NURANG 132.00 0.88450 1.01515 1.10000 0.90000 SINGLE 165 1344 T-MIRALI 132.00 0.86420 1.01155 1.10000 0.90000 SINGLE 165 1346 MIR ALI 132.00 0.85168 1.00497 1.10000 0.90000 SINGLE 165 1351 DATAKHEL 132.00 0.89417 0.99984 1.10000 0.90000 SINGLE 165 1355 RAZMAK 132.00 0.89342 0.99828 1.10000 0.90000 SINGLE 214 1465 WANA 132.00 0.87523 0.95640 1.10000 0.90000 SINGLE 225 1755 SADDA TESCO 132.00 1.10910 1.01015 1.10000 0.90000 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 3 : OPEN LINE FROM BUS 1069 [DOBIAN 132.00] TO BUS 1080 [SWABI 132.00] CKT 1 SINGLE 108 : OPEN LINE FROM BUS 1261 [DI.KHN-N 132.00] TO BUS 1460 [TANK 132.00] CKT 1 SINGLE 147 : OPEN LINE FROM BUS 1315 [TALL 132.00] TO BUS 1316 [TALL 66.000] CKT 1 SINGLE 156 : OPEN LINE FROM BUS 1332 [BANNU-N 132.00] TO BUS 1345 [S.NURANG 132.00] CKT 1 SINGLE 165 : OPEN LINE FROM BUS 1342 [BANNU-II 132.00] TO BUS 1344 [T-MIRALI 132.00] CKT 1 SINGLE 214 : OPEN LINE FROM BUS 1461 [GOMAL-ZM 132.00] TO BUS 1465 [WANA 132.00] CKT 1 SINGLE 225 : OPEN LINE FROM BUS 1755 [SADDA TESCO 132.00] TO BUS 1775 [PARACINA 132.00] CKT 1 -------------------------------------------------------------------------------- 504760-01-A4 98 Disco Transmission Expansion Plan National Power System Expansion Plan Line/Transformer Overloads: A few marginal line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 1440*TARBELA-R 132.00 1442 GHAZI-IS 132.00 1 SINGLE 3 112.0 119.5 116.3 % 1069*DOBIAN 132.00 1070 MARDAN 132.00 1 SINGLE 5 112.0 132.9 119.0 1069 DOBIAN 132.00 1072*HUSSAI 132.00 1 SINGLE 5 112.0 117.2 108.0 1291*SHMUHDI-1 132.00 1294 MATANI 132.00 3 SINGLE 107 112.0 128.1 109.6 1460*TANK 132.00 7430 D.I.KHAN 132.00 1 SINGLE 108 112.0 96.7 119.2 1332*BANNU-N 132.00 1340 BANNU 132.00 2 SINGLE 153 112.0 120.4 103.2 1332*BANNU-N 132.00 1340 BANNU 132.00 3 SINGLE 153 112.0 120.4 103.2 1332*BANNU-N 132.00 1340 BANNU 132.00 1 SINGLE 154 112.0 120.4 103.2 1332*BANNU-N 132.00 1340 BANNU 132.00 3 SINGLE 154 112.0 120.4 103.2 1332*BANNU-N 132.00 1340 BANNU 132.00 1 SINGLE 155 112.0 120.4 103.2 1332*BANNU-N 132.00 1340 BANNU 132.00 2 SINGLE 155 112.0 120.4 103.2 1440*TARBELA-R 132.00 1442 GHAZI-IS 132.00 1 SINGLE 204 112.0 116.7 106.9 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 3 : OPEN LINE FROM BUS 1069 [DOBIAN 132.00] TO BUS 1080 [SWABI 132.00] CKT 1 SINGLE 5 : OPEN LINE FROM BUS 1070 [MARDAN 132.00] TO BUS 1074 [MARDANII 132.00] CKT 1 SINGLE 107 : OPEN LINE FROM BUS 1257 [R-BABA 132.00] TO BUS 1291 [SHMUHDI-1 132.00] CKT 1 SINGLE 108 : OPEN LINE FROM BUS 1261 [DI.KHN-N 132.00] TO BUS 1460 [TANK 132.00] CKT 1 SINGLE 153 : OPEN LINE FROM BUS 1332 [BANNU-N 132.00] TO BUS 1340 [BANNU 132.00] CKT 1 SINGLE 154 : OPEN LINE FROM BUS 1332 [BANNU-N 132.00] TO BUS 1340 [BANNU 132.00] CKT 2 SINGLE 155 : OPEN LINE FROM BUS 1332 [BANNU-N 132.00] TO BUS 1340 [BANNU 132.00] CKT 3 SINGLE 204 : OPEN LINE FROM BUS 1442 [GHAZI-IS 132.00] TO BUS 1450 [TARBELA-N 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. PESCO Reinforcements 11 kV Capacitors: 1. Additional 6.6 MVAR Caps at T-1, 132 KV Rahman Baba. T/ Lines: 1. Re-conducting of Mardan-Dobian line with Greeley conductor length 13.6 KM. 2. New SDT line Dobian-Hussai with Lynx length 12 KM. 504760-01-A4 99 Disco Transmission Expansion Plan National Power System Expansion Plan 3. New SDT line Chohta Lahor-Swabi with Lynx length 12 KM. 4. New D/C line D.I.Khan-Pezu with Rail length 40 KM. 5. New D/C line Pezu-Tank with Rail length 30 KM. 6. Re-Conducting of 220/132 KV Bannu – Bannu Ckt-1 & 3 with Greeley length 16 KM each. TESCO Reinforcements Up-Grading of G/S: 1. Up Gradation of 66 KV Ghiljo to 132 KV with 1x10/13 MVA T/F, feed from 132 KV Tall with lynx length 24 KM. With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed PESCO and TESCO base case for Year-2018 with the above mentioned system reinforcements are given in Appendix-5 (spread over 9 Sheets). 7.1.19 “IESCO” Distribution System for Year-2018 The Year-2018 base case was studied based on the planning criteria described in Section 12.5. The total load of IESCO by Year-2018 is 3,738 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], no voltage problems were recorded within the IESCO system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) * NONE * 504760-01-A4 100 Disco Transmission Expansion Plan National Power System Expansion Plan BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) * NONE * -------------------------------------------------------------------------------- Line/Transformer Overloads: A few overloading problems was recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 210 BURHAN 220.00* 15 2020 BURHAN 132.00 2 1 491.0 480.0 102.3 212 TAXILA 220.00* 15 2100 TAXILA 132.00 2 1 525.0 500.0 105.0 215 IBD.P.RD 220.00* 15 2025 SANGJANI 132.00 2 1 531.9 480.0 110.8 220 REWAT-N 220.00* 15 2300 REWAT NEW 132.00 2 2 240.6 160.0 150.4 Note: 220/132kv Power Transformers relate to NTDC. -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), system reinforcements including new grid stations and augmentations were added as follows. List of New 132KV Grid Station (2018) added 504760-01-A4 Name of 132 kV GS Sr No. Bus # 1 2136 Chakri Road 2x 20/26 2 2037 GHQ E‐10 2x 20/26 3 2259 Blue Area G‐9 2x 20/26 4 5 6 7 8 9 2028 2252 2137 2261 2036 2038 F‐16/G‐15 Blue Area G‐8 F.J. W.University Simly Road F‐12 I‐11 2x 20/26 2x 20/26 2x 20/26 2x 20/26 2x 20/26 2x 20/26 101 Scope Disco Transmission Expansion Plan National Power System Expansion Plan Reinforcement required for 2018 N-0 Case Name of 132 kV Grid Station Bus # Existing Capacity (MVA) 13 Proposed Capacity (MVA) 26 21702 Kahuta City T‐2 23201 Jatli T‐1 13 26 23202 Jatli T‐2 13 26 21691 Bahria Town Ph‐8 26 40 Remark Consumer GS Also, 11 kV capacitor banks of different ratings were added at 95 grid stations. With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: Some voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY <-------- B U S --------> V-CONT V-INIT V-MAX V-MIN SINGLE 185 2166 CHAINTBATIAN132.00 0.83628 1.00977 1.10000 0.90000 SINGLE 185 2170 KHUTACTY 132.00 0.83628 1.00977 1.10000 0.90000 SINGLE 185 2180 AZADPATN 132.00 0.87089 1.00830 1.10000 0.90000 SINGLE 185 2519 MANG 33.000 0.83519 1.00604 1.10000 0.90000 SINGLE 185 2925 AZADPATN 33.000 0.84774 1.01420 1.10000 0.90000 SINGLE 185 2930 PALANDRI 132.00 0.89400 1.00856 1.10000 0.90000 SINGLE 185 21661 T-1 11.000 0.82605 1.01809 1.10000 0.90000 SINGLE 185 21662 T-2 11.000 0.82605 1.01809 1.10000 0.90000 SINGLE 185 21701 T-1 11.000 0.76092 0.96055 1.10000 0.90000 SINGLE 185 21702 T-2 11.000 0.80158 0.99109 1.10000 0.90000 SINGLE 185 25191 T-1 11.000 0.81505 0.99655 1.10000 0.90000 SINGLE 185 25192 T-2 11.000 0.81737 0.99838 1.10000 0.90000 SINGLE 185 29301 T-1 11.000 0.87777 0.99912 1.10000 0.90000 SINGLE 185 29302 T-2 11.000 0.87777 0.99912 1.10000 0.90000 66.000 1.12907 1.04181 1.10000 0.90000 SINGLE 467 2782 GARIBWAL CONTINGENCY LEGEND: -------------------------------------------------------------------------------- 504760-01-A4 102 Disco Transmission Expansion Plan National Power System Expansion Plan Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 2060*WAH NEW 132.00 2100 TAXILA 132.00 1 SINGLE 102 112.0 115.6 100.3 % 2060*WAH NEW 132.00 2100 TAXILA 132.00 1 SINGLE 103 112.0 115.6 100.3 CONTINGENCY LEGEND: SINGLE 102 : OPEN LINE FROM BUS 2060 [WAH NEW 132.00] TO BUS 2100 [TAXILA 132.00] CKT 2 SINGLE 103 : OPEN LINE FROM BUS 2060 [WAH NEW 132.00] TO BUS 2100 [TAXILA 132.00] CKT 3 -------------------------------------------------------------------------------- To overcome these (N-1) violations, one transmission line was reconfigured as follows. 1. Reconductoring of132kV Transmission Lines From New Wah – Taxila (Circuit-1) Lynx to Greely (9 KM) With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed IESCO base case for Year2018 with the above mentioned system reinforcements are shown in Appendix-5 (spread over 9 Sheets). 7.1.20 “GEPCO” Distribution System for Year-2018 The Year-2018 base case was studied based on the planning criteria described in Section 12.5. The total load of GEPCO by Year-2018 is 2,945 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], no voltage problems were recorded within the GEPCO system. 504760-01-A4 103 Disco Transmission Expansion Plan National Power System Expansion Plan -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA * NONE * -------------------------------------------------------------------------------- Line/Transformer Overloads: A few marginal overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 3004 KHARIAN 132.00* 3 30041 T1 11.000 3 1 28.0 26.0 107.6 3004 KHARIAN 132.00* 3 30042 T2 11.000 3 1 27.0 26.0 103.7 3004 KHARIAN 132.00* 3 30043 T3 11.000 3 1 13.3 13.0 102.4 3016 GUJRAT-2 132.00* 3 30161 T1 11.000 3 1 26.5 26.0 102.0 3016 GUJRAT-2 132.00* 3 30162 T2 11.000 3 1 26.7 26.0 102.6 3016 GUJRAT-2 132.00* 3 30163 T3 11.000 3 1 26.7 26.0 102.7 -------------------------------------------------------------------------------- Two network reinforcements were added to the GEPCO system by Year-2018 to meet the planning criteria under (N-0) conditions. 1. Augmentation of one 13 MVA power transformer with 26 MVA at 132 kV Kharian grid station 2. Augmentation of one 26 MVA power transformer with 40 MVA at 132 kV Gurat-2 grid station 504760-01-A4 104 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: No voltage problems were recorded (outside: 0.90 – 1.10 pu). Line/Transformer Overloads: No line overloading problems were recorded based on 100% of rating A. The updated load flow single line diagrams for developed GEPCO base case for Year2018 with the above mentioned system reinforcements are shown in Appendix-5 (spread over 5 Sheets). 7.1.21 “LESCO” Distribution System for Year-2018 The Year-2018 base case was studied based on the planning criteria described in Section 12.5. The total load of LESCO by Year-2018 is 5,905 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], no voltage problems were recorded within the LESCO system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA * NONE * -------------------------------------------------------------------------------- 504760-01-A4 105 Disco Transmission Expansion Plan National Power System Expansion Plan Line/Transformer Overloads: Two overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 4162 SRFZNGR 132.00* 4 41621 S.NGR T-1 11.000 4 1 30.9 26.0 119.0 4162 SRFZNGR 132.00* 4 41622 S.NGR T-2 11.000 4 1 28.0 26.0 107.5 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), one some system reinforcement was added to solve the (N-0) violations as given below. • Augmentation of 2x132kV, 26 MVA Transformers with 40 MVA capacity at Sarfraz Nager grid station. With the above addition, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: No voltage problems were recorded (outside: 0.90 – 1.10 pu). Line/Transformer Overloads: No line overloading problems were recorded based on 100% of rating A. The updated load flow single line diagrams for developed LESCO base case for Year2018 with the above mentioned system reinforcements are shown in Appendix-5 (spread over 9 Sheets). 504760-01-A4 106 Disco Transmission Expansion Plan National Power System Expansion Plan 7.1.22 “FESCO” Distribution System for Year-2018 The Year-2018 base case was studied based on the planning criteria described in Section 12.5. The total load of FESCO by Year-2018 is 3,974 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], some voltage problems were recorded within the FESCO system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA 4475 GOJRA-2 66.000 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 5 1.0553 69.647 BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA 5220 MANKERA V(PU) V(KV) 66.000 5 0.9064 59.821 42901 T1 11.000 5 0.9443 10.387 44721 T1 11.000 5 0.9469 10.416 50441 T1 11.000 51101 T1 66.000 5 0.8896 58.712 42902 T2 11.000 5 0.9443 10.387 50203 T3 11.000 5 0.9483 10.432 5 0.9309 10.240 50442 T2 11.000 5 0.9309 10.240 11.000 5 0.9201 10.121 52201 T1 11.000 5 0.8740 52301 T1 11.000 5 0.8896 54401 T1 11.000 5 0.9431 10.374 56302 T2 11.000 5 0.9430 10.373 9.786 5230 HYD.THAL 9.614 -------------------------------------------------------------------------------- Line/Transformer Overloads: Some overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV 360 LUDEWALA AREA 220.00* 15 4290 BHOWANA 132.00* 5 4290 BHOWANA 132.00* 4380 FBD-TH-O 4460 SMNDRIRD 504760-01-A4 BUS# X-- NAME --X BASKV 5419 LUDWLA-N AREA CKT LOADING RATING PERCENT 132.00 5 1 565.4 480.0 117.8 42901 T1 11.000 5 1 27.2 26.0 104.8 5 42902 T2 11.000 5 1 27.2 26.0 104.8 132.00* 5 43803 T3 11.000 5 1 26.1 26.0 100.3 132.00* 5 44601 T1 11.000 5 1 42.1 40.0 105.2 107 Disco Transmission Expansion Plan National Power System Expansion Plan 4470 GOJRA 132.00* 5 44701 T1 11.000 5 1 40.1 40.0 100.3 4472 SAMMDRI 132.00* 5 44721 T1 11.000 5 1 41.5 40.0 103.8 4478 T.T.SING 132.00* 5 44781 T3 11.000 5 1 26.5 26.0 102.0 4478 T.T.SING 132.00* 5 44782 T4 11.000 5 1 29.0 26.0 111.7 4482 PIRMEHL 132.00* 5 44821 T1 11.000 5 1 29.8 26.0 114.7 4490 JHANG 132.00* 5 44901 T1 11.000 5 1 42.9 40.0 107.3 4490 JHANG 132.00* 5 44902 T2 11.000 5 1 40.1 40.0 100.2 4490 JHANG 132.00* 5 44903 T3 11.000 5 1 42.2 40.0 105.5 4498 SHORK-RD 132.00* 5 44981 T1 11.000 5 1 22.5 13.0 173.0 4555 C.RAJANA 132.00* 5 45551 T1 11.000 5 1 13.8 13.0 105.9 4555 C.RAJANA 132.00* 5 45552 T2 11.000 5 1 13.8 13.0 105.9 5220 MANKERA 66.000* 5 52201 T1 11.000 5 1 14.1 13.0 108.8 5420 LUDEWALA 132.00* 5 54201 T3 11.000 5 1 14.1 13.0 108.6 5440 BHAMB 132.00* 5 54402 T2 11.000 5 1 40.6 40.0 101.5 5445 SARGODAC 132.00* 5 54452 T2 11.000 5 1 40.2 40.0 100.5 7005 SHORKCTY 132.00* 5 70051 T1 11.000 5 1 27.4 26.0 105.2 7455 BHAKKAR 132.00 5 132.00* 6 1 172.6 112.0 154.1 7456 CHOKAZAM -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), many system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. Sr.No. KV Grid Station 1 132 Shorkot City 2 132 3 4 5 6 7 8 9 10 11 132 132 132 132 132 66 66 66 66 12 66 13 14 66 132 15 132 Rinforcement Required Augmentation 10/13 MVA T/F with 20/26 MVA Augmentation 20/26 MVA T/F with 31.5/40 MVA to shift Samandri total load of 66 KV Samandri Jhang City Extension of 31.5/40 MVA T/F. Pir Mehal Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Bhowana Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Chowk Rajana Augmentation 10/13 MVA T/F with 20/26 MVA Barana Augmentation 10/13 MVA T/F with 20/26 MVA Mankera Conversion from 66 KV Mankera to 132 KV Mankera Hyd. abad Thal Conversion from 66 KV Hyd. Thal to 132 KV Hyd.Thal Kalabag Conversion from 66 KV Kalabag to 132 KV Kalabag Makerwal Conversion from 66 KV Makerwal to 132 KV Makerwal Conversion from 66 KV Ahmed Pur Sial to 132 KV Ahmed Ahmed pur Sial Pur Sail Nia Lahore Conversion from 66 KV Nia Lahore to 132 KV Nia Lahore Old Thermal Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Extension of 20/26 MVA T/F to shift total load of 66 KV Shorkot Road Chutiana With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. 504760-01-A4 108 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-1) Results Severe Outage Cases: Two severe line outages would lead to area collapse were recorded. -------------------------------------------------------------------------------- CONTINGENCY LEGEND: LABEL EVENTS SINGLE 197 : OPEN LINE FROM BUS 5419 [LUDWLA-N 132.00] TO BUS 5476 [T-BHERA 132.00] CKT 1 SINGLE 226 : OPEN LINE FROM BUS 5476 [T-BHERA 132.00] TO BUS 5480 [H.FAQIRN 132.00] CKT 1 -------------------------------------------------------------------------------- Out-of-Limits Bus Voltages: Some low voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 6 <-------- B U S --------> 4306 SCARP 132.00 0.89895 1.02448 1.10000 0.90000 SINGLE 161 5240 ADHIKOT 66.000 0.89559 0.99189 1.10000 0.90000 SINGLE 188 5402 T-SHAHPUR 132.00 0.87730 1.02324 1.10000 0.90000 SINGLE 188 5403 SHAHPUR 132.00 0.86381 1.01235 1.10000 0.90000 SINGLE 188 5423 T-FLYING CEM132.00 0.88993 1.01338 1.10000 0.90000 SINGLE 188 5424 FLYING CEM 132.00 0.88993 1.01338 1.10000 0.90000 SINGLE 198 5630 BARANA 132.00 0.89993 0.95587 1.10000 0.90000 SINGLE 204 5440 BHAMB 132.00 0.89598 0.99019 1.10000 0.90000 SINGLE 204 5443 KOTSHAKR 132.00 0.89002 0.98562 1.10000 0.90000 SINGLE 204 5444 JAMALI BALOO132.00 0.88488 0.98163 1.10000 0.90000 SINGLE 207 5450 SGD2 132.00 0.89967 1.00278 1.10000 0.90000 SINGLE 207 5452 SIAL.IND 132.00 0.89691 1.00086 1.10000 0.90000 SINGLE 207 5453 PATHAN KOT 132.00 0.87819 0.98587 1.10000 0.90000 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 6 : OPEN LINE FROM BUS 4305 [T-SCARP 132.00] TO BUS 4330 [NSHTBD-1 132.00] CKT 1 SINGLE 188 : OPEN LINE FROM BUS 5402 [T-SHAHPUR 132.00] TO BUS 5419 [LUDWLA-N 132.00] CKT 1 SINGLE 198 : OPEN LINE FROM BUS 5420 [LUDEWALA 132.00] TO BUS 5425 [KIRANAHL 132.00] CKT 1 SINGLE 204 : OPEN LINE FROM BUS 5420 [LUDEWALA 132.00] TO BUS 5440 [BHAMB 132.00] CKT 1 SINGLE 207 : OPEN LINE FROM BUS 5420 [LUDEWALA 132.00] TO BUS 5450 [SGD2 132.00] CKT 1 -------------------------------------------------------------------------------- 504760-01-A4 109 Disco Transmission Expansion Plan National Power System Expansion Plan Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 5420 LUDEWALA 132.00 5450*SGD2 132.00 1 SINGLE 12 114.0 113.4 103.2 % 5420 LUDEWALA 132.00 5425*KIRANAHL 132.00 1 SINGLE 19 112.0 120.4 110.0 4305*T-SCARP 132.00 4330 NSHTBD-1 132.00 1 SINGLE 22 114.0 122.1 104.2 4330 NSHTBD-1 132.00 4410*CHINOIT ROAD132.00 1 SINGLE 35 184.0 262.1 141.2 4330 NSHTBD-1 132.00 4395*T-CHKJMR 132.00 1 SINGLE 36 184.0 256.0 135.7 4395 T-CHKJMR 132.00 4396*FDC-1 CITY 132.00 1 SINGLE 36 184.0 206.8 111.7 4396 FDC-1 CITY 132.00 4410*CHINOIT ROAD132.00 1 SINGLE 36 184.0 200.2 108.5 4330 NSHTBD-1 132.00 4410*CHINOIT ROAD132.00 1 SINGLE 56 184.0 222.4 119.2 4330 NSHTBD-1 132.00 4410*CHINOIT ROAD132.00 1 SINGLE 58 184.0 217.3 116.4 4471 T-HBSHAH 132.00 4490*JHANG 132.00 1 SINGLE 109 112.0 118.6 107.1 4324 HUSTKHWA 132.00 5451*126-SBPL 132.00 1 SINGLE 207 114.0 113.7 107.1 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 6 : OPEN LINE FROM BUS 4305 [T-SCARP 132.00] TO BUS 4330 [NSHTBD-1 132.00] CKT 1 SINGLE 19 : OPEN LINE FROM BUS 4320 [CHNIOT-I 132.00] TO BUS 5425 [KIRANAHL 132.00] CKT 1 SINGLE 22 : OPEN LINE FROM BUS 4325 [C.103RB 132.00] TO BUS 4330 [NSHTBD-1 132.00] CKT 1 SINGLE 35 : OPEN LINE FROM BUS 4330 [NSHTBD-1 132.00] TO BUS 4395 [T-CHKJMR 132.00] CKT 1 SINGLE 36 : OPEN LINE FROM BUS 4330 [NSHTBD-1 132.00] TO BUS 4410 [CHINOIT ROAD132.00] CKT 1 SINGLE 56 : OPEN LINE FROM BUS 4395 [T-CHKJMR 132.00] TO BUS 4396 [FDC-1 CITY 132.00] CKT 1 SINGLE 109 : OPEN LINE FROM BUS 4477 [TTSINGHN 132.00] TO BUS 4490 [JHANG 132.00] CKT 1 SINGLE 207 : OPEN LINE FROM BUS 5420 [LUDEWALA 132.00] TO BUS 5450 [SGD2 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, two system additions were considered as follows. Sr.No. Rinforcement Required 1 2 In/out arrangement for 132 KV Sargodha‐2 from double cct. Rail proposed Ludewala to 132 KVChinoit Industrial New Double Cct on Rail from 220 KV Nishatabad to 132 Chinoit Road With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. 504760-01-A4 110 Disco Transmission Expansion Plan National Power System Expansion Plan The updated load flow single line diagrams for developed FESCO base case for Year2018 with the above mentioned system reinforcements are shown in Appendix-5 (spread over 6 Sheets). 7.1.23 “MEPCO” Distribution System for Year-2018 The Year-2018 base case was studied based on the planning criteria described in Section 12.5. The total load of MEPCO by Year-2018 is 4,432 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.08 pu], many low voltage problems were recorded within the MEPCO system as given below. As mentioned in the MEPCO-2015 and 2016 analyses, the upper voltage limit for MEPCO system was set to 1.08 pu instead of 1.05 pu due to the radial nature of the system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0800: BUS# X-- NAME --X BASKV AREA 70321 MP PAHOR T-111.000 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 6 1.0896 11.986 BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 6120 PAKPATAN 132.00 6 0.9343 123.33 6121 MALK-TRU _1132.00 6 0.9360 123.55 6210 SAHUKA 132.00 6 0.9421 124.35 6500 HAROON ABAD 132.00 6 0.9349 123.40 6512 FAQIRWLI 132.00 6 0.9179 121.16 6513 T FAQ WALI 132.00 6 0.9186 121.26 6521 FORTABAS 132.00 6 0.9072 119.75 7055 T-C.211 132.00 6 0.9423 124.39 7060 CHAK.211 132.00 6 0.9393 123.99 7070 MAILSI 132.00 6 0.9349 123.41 7115 MIRAN PUR 132.00 6 0.9428 124.45 7120 LODHRAN 132.00 6 0.9444 124.66 7147 KARORPCA 132.00 6 0.9366 123.64 7149 DUNYAPUR _1132.00 6 0.9366 123.64 7170 AHMDPR.E 132.00 6 0.9232 121.86 7180 FEROZA 132.00 6 0.8334 110.00 7185 KHANBELA 132.00 6 0.8148 107.55 7288 SHUJABAD 132.00 6 0.8840 116.69 7289 JALALPWL 132.00 6 0.8241 108.79 7340 MEHRKHAS 132.00 6 0.9304 122.81 7350 DMR WALA 132.00 6 0.9176 121.12 7360 JATOIJNB 132.00 6 0.9029 119.19 7370 KHRPRSDT 132.00 6 0.9029 119.19 7784 H RAJKAN 132.00 6 0.9080 119.86 7792 MAROOT 132.00 6 0.9385 123.88 7974 UCH.SHRF 132.00 6 0.8967 118.36 7981 ALI PUR 132.00 6 0.8883 117.26 60901 SAHWAL-O T-111.000 6 0.9493 10.442 61002 NOORPUR T-2 11.000 6 0.9480 10.428 61201 PAKPATAN T-111.000 6 0.9436 10.380 61202 PAKPATAN T-211.000 6 0.9446 10.390 61302 HARAPPA T-2 11.000 6 0.9269 10.196 504760-01-A4 111 Disco Transmission Expansion Plan National Power System Expansion Plan 61621 BREWLA-O T-111.000 6 0.8840 61622 BREWLA-O T-211.000 6 0.9409 10.350 61652 BURW III T-211.000 6 0.9362 10.298 9.723 61752 LUDDEN T-2 11.000 6 0.9290 10.220 61781 KARAMPUR T-111.000 6 0.9260 10.186 61782 KARAMPUR T-211.000 6 0.9409 10.350 61822 KAMIR W T-2 11.000 6 0.9448 10.393 62001 QABULA T-1 11.000 6 0.9436 10.380 62002 QABULA T-2 11.000 6 0.9290 10.219 62101 SAHUKA T-1 11.000 6 0.9277 10.204 62102 SAHUKA T-2 11.000 6 0.9072 62202 HASILPUR T-211.000 6 0.9160 10.076 9.979 62203 HASILPUR T-311.000 6 0.9349 10.284 62211 CHUNAW T-1 11.000 6 0.9164 10.080 64511 DAHRWALA T-111.000 6 0.9413 10.354 64512 DAHRAWLA T-211.000 6 0.9310 10.241 64622 NOORSAR T-2 11.000 6 0.9401 10.341 65013 HARONABD T-311.000 6 0.9128 10.041 65122 FAQIR W T-1 11.000 6 0.9226 10.149 65211 FORT ABB T-111.000 6 0.9085 70002 MIANCHNU T-211.000 6 0.9235 10.159 70003 MIANCHNU T-311.000 6 0.9099 10.009 70021 KASSOWAL T-111.000 6 0.9483 10.432 70022 KASOWAL T-2 11.000 6 0.9229 10.152 70101 KACHAKHU T-111.000 6 0.9070 9.977 70102 KACHAKHU T-211.000 6 0.9142 10.056 70303 KABIRWLA T-311.000 6 0.9052 9.957 70502 JEHANIAN T-211.000 6 0.9378 10.316 70503 JEHANIAN T-311.000 6 0.9372 10.309 70701 MAILSI T-1 11.000 6 0.9408 10.349 70702 MAILSI T-2 11.000 6 0.9251 10.176 70703 MAILSI T-3 11.000 6 0.9341 10.275 71101 BASTIMLK T-111.000 6 0.9450 10.395 71201 LODHRAN T-1 11.000 6 0.9218 10.140 71251 LART-1 11.000 6 0.9219 10.140 71401 BHAWALPR T-111.000 6 0.9370 10.307 71403 BHAWALPR T-311.000 6 0.9444 10.388 71471 KARORPCA T-111.000 6 0.9118 10.030 71472 KARORPCA T-211.000 6 0.9448 10.393 71491 DUNYAPUR T-311.000 6 0.9396 10.335 71492 DUNYAPUR T-411.000 6 0.9397 10.337 71501 SAMASATA T-111.000 6 0.8988 9.887 71702 AHMDPR.E T-211.000 6 0.9074 9.981 71703 AHMDPR.E T-311.000 6 0.9003 9.903 71801 FEROZA T-1 11.000 6 0.8554 9.410 71851 KHANBELA T-111.000 6 0.8481 9.329 71852 KHANBELA T-211.000 6 0.8509 9.360 72252 R.Y.KHN2 T-211.000 6 0.9478 10.425 72551 WAP TO T-1 6 0.8951 9.846 11.000 9.994 72552 WAPDA TO T-211.000 6 0.8945 72603 MN.BS.RD T-311.000 6 0.9486 10.435 72681 SRJ.M T-1 6 0.9485 10.433 72871 M.J RD T-1 11.000 11.000 9.840 6 0.9362 10.298 72881 SHUJABAD T-111.000 6 0.8680 9.548 72882 SHUJABAD T-211.000 6 0.8572 9.429 72891 JALALPWL T-111.000 6 0.8435 9.278 72892 JALALPWL T-211.000 6 0.8474 9.322 73281 KBGASHER T-111.000 6 0.9088 9.997 73601 JATOIJNB T-111.000 6 0.9336 10.270 73602 JATOIJNB T-211.000 6 0.9281 10.209 75901 SKHISRWR T-111.000 6 0.9469 10.416 77821 YAZMN T-1 11.000 6 0.9094 10.003 77842 H RAJKAN T-211.000 6 0.9089 9.998 77921 MAROOT T-1 11.000 6 0.9418 10.360 79423 UCH.SHRF T-111.000 6 0.8745 9.619 79741 UCH.SHRF T-211.000 6 0.8293 9.122 79742 UCH.SHRF T-311.000 6 0.8360 9.196 79811 ALI PUR T-1 11.000 6 0.8778 9.656 -------------------------------------------------------------------------------- Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 500 MULTAN 220.00* 15 6666 MULTAN-N 132.00 6 1 553.8 500.0 110.8 520 PIRNGHAB 220.00* 15 7100 P.GAIB-1 132.00 6 1 512.4 254.0 201.7 540 KAPCO220 220.00 15 7300 KAPCO 132.00* 6 1 508.4 400.0 127.1 6050 BNGAHYAT 132.00* 6 60501 BNGAHYAT T-111.000 6 1 14.1 13.0 108.5 6178 KARAMPUR 132.00* 6 61781 KARAMPUR T-111.000 6 1 14.8 13.0 113.8 504760-01-A4 112 Disco Transmission Expansion Plan National Power System Expansion Plan 6178 KARAMPUR 132.00* 6 61782 KARAMPUR T-211.000 6 1 13.4 13.0 103.0 6190 BWL.NAGR 132.00* 6 61903 BWL.NAGR T-311.000 6 1 28.1 26.0 108.2 6221 CHUNAWALA 132.00* 6 62211 CHUNAW T-1 11.000 6 1 14.1 13.0 108.3 6451 DAHRANWALA 132.00* 6 64511 DAHRWALA T-111.000 6 1 13.5 13.0 103.7 6500 HAROON ABAD 132.00* 6 65012 HARONABD T-211.000 6 1 13.8 13.0 105.8 7000 MIANCHNU 132.00* 6 70002 MIANCHNU T-211.000 6 1 43.7 40.0 109.2 7000 MIANCHNU 132.00* 6 70003 MIANCHNU T-311.000 6 1 46.4 40.0 116.0 7002 KASSOWAL 132.00* 6 70022 KASOWAL T-2 11.000 6 1 27.6 26.0 106.0 7006 HEAD SIDHNAI132.00* 6 70061 H SIDNAI T-111.000 6 1 13.3 13.0 102.1 7010 KACHAKHU 132.00* 6 70101 KACHAKHU T-111.000 6 1 28.5 26.0 109.7 7010 KACHAKHU 132.00* 6 70102 KACHAKHU T-211.000 6 1 27.8 26.0 106.9 7020 KHANEWAL 132.00* 6 70202 KHANEWAL T-211.000 6 1 29.0 26.0 111.5 7040 GARHMORE 132.00* 6 70401 GARHMORE T-111.000 6 1 26.3 26.0 101.1 7050 JEHANIAN 132.00* 6 70502 JEHANIAN T-211.000 6 1 44.5 40.0 111.3 7075 MUKHDM.R 132.00* 6 70751 MUKHDM.R T-111.000 6 1 15.4 13.0 118.1 7075 MUKHDM.R 132.00* 6 70752 MUKHDM.R T-211.000 6 1 14.1 13.0 108.3 7130 BU.JADID 132.00* 6 71301 BU.JADID T-111.000 6 1 26.6 26.0 102.4 7130 BU.JADID 132.00* 6 71302 BU.JADID T-211.000 6 1 26.7 26.0 102.8 7147 KARORPCA 132.00* 6 71471 KARORPCA T-111.000 6 1 44.6 40.0 111.6 7149 DUNYAPUR _1132.00* 6 71491 DUNYAPUR T-311.000 6 1 13.3 13.0 102.0 7170 AHMDPR.E 132.00* 6 71702 AHMDPR.E T-211.000 6 1 42.4 40.0 106.1 7170 AHMDPR.E 132.00* 6 71703 AHMDPR.E T-311.000 6 1 27.7 26.0 106.5 7200 KHANPUR 132.00* 6 72001 KHANPUR T-1 11.000 6 1 42.6 40.0 106.4 7210 MWQRSHIA 132.00* 6 72101 MWQRSHIA T-111.000 6 1 27.7 26.0 106.5 7220 R.Y.KHAN 132.00* 6 72201 R.Y.KHAN T-111.000 6 1 45.4 40.0 113.6 7255 WAPDATWN 132.00* 6 72551 WAP TO T-1 11.000 6 1 49.2 40.0 123.0 7255 WAPDATWN 132.00* 6 72552 WAPDA TO T-211.000 6 1 48.2 40.0 120.5 7265 QASIMBGH 132.00* 6 72652 Q BAGH T-2 11.000 6 1 27.0 26.0 104.0 7270 MLN-IND 132.00* 6 72702 MLN-IND T-2 11.000 6 1 27.8 26.0 107.1 7280 MN.VR.RD 132.00* 6 72803 MN.VR.RD T-311.000 6 1 28.3 26.0 108.7 7328 KBGASHER 132.00* 6 73281 KBGASHER T-111.000 6 1 33.8 26.0 130.1 7330 MZFRGARH 132.00 6 6 1 112.2 112.0 100.2 7331 KOTADU-O 132.00* 6 73314 KOTADU-O T-411.000 6 1 29.2 26.0 112.1 7456 CHOKAZAM 132.00* 6 74562 C AZAM T-2 11.000 6 1 28.1 26.0 108.2 7459 KHANGARH 132.00* 6 74591 KHANGARH T-111.000 6 1 13.6 13.0 104.9 7831 FATEHPUR 132.00* 6 78312 FATEPUR T-2 11.000 6 1 13.0 13.0 100.1 7974 UCH.SHRF 132.00* 6 79741 UCH.SHRF T-211.000 6 1 15.5 13.0 118.9 7974 UCH.SHRF 132.00* 6 79742 UCH.SHRF T-311.000 6 1 16.4 13.0 126.2 7459 KHANGARH 132.00* -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), some system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. 504760-01-A4 113 Disco Transmission Expansion Plan National Power System Expansion Plan Sub Station 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV 132 KV B Hayat Karam Pur Daharanwala Haroonabad Dunyhiapur MWQ Fatepur Jatoi B Nager K Khu Khanewal M Rashid Ind. State Vehari Road Chk Azam Kot Addu Wapda Town Chunawala Kassowal H Sidnai Garmore Khanghar Jaheniani B U Jadid K Pacca A P East Khanpur Qasimbagh Shujabad R.Y. Khan Mian channu Burewala Uch Sharif Transformer NO. 2018 KV T-1 T-1 & T-2 T-1 & T-2 T-2 T-3 T-3 T-2 T-1 & T-2 T-3 T-1 & T-2 T-2 T-1 & T-2 T-3 T-3 T-2 T4 T-1 & T-2 T-2 T-3 T-3 T-2 T-2 T-3 T-3 T-3 T-4 T-3 T-3 T-3 T-3 T-4 T-1 T-1 & T-2 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 132 / 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Proposed MVA Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Augmantation Extension Extension Extension Extension Extension Extension Extension Extension Extension Extension Extension Extension Extension Extension Augmantation Augmantation 26 26 26 26 26 26 26 26 40 40 40 40 40 40 40 40 40 13 13 13 13 13 26 26 26 26 26 26 26 40 40 40 26 Transmission Line Additions/Modification 132 Kv Muzafarghar ‐ Khanghar Lynex to Greely KM 17 Km Reinforcements to overcome (N-0) violations; continue... 504760-01-A4 114 Disco Transmission Expansion Plan National Power System Expansion Plan No. Substation Capacitors 1 132Kv Capacitor Haroon abad 36 MVAR 2 132Kv Feroza 36 MVAR 3 132Kv J P Pirwala 36 MVAR 4 132Kv Burewala 36 MVAR With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse was recorded. Out-of-Limits Bus Voltages: One voltage problem was recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------MONITORED VOLTAGE REPORT: CONTINGENCY <-------- B U S --------> SINGLE 109 7120 LODHRAN 132.00 V-CONT V-INIT V-MAX V-MIN 0.86791 1.00125 1.10000 0.90000 -------------------------------------------------------------------------------- Line/Transformer Overloads: Two marginal line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES AND INTERFACES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 7120*LODHRAN 132.00 7140 BHAWALPR 132.00 1 SINGLE 96 112.0 113.7 103.5 % 7120*LODHRAN 132.00 7140 BHAWALPR 132.00 1 SINGLE 97 112.0 118.1 108.2 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 96 : OPEN LINE FROM BUS 7100 [P.GAIB-1 132.00] TO BUS 7110 [BASTIMLK 132.00] CKT 1 SINGLE 97 : OPEN LINE FROM BUS 7100 [P.GAIB-1 132.00] TO BUS 7125 [LAR 132.00] CKT 1 -------------------------------------------------------------------------------- 504760-01-A4 115 Disco Transmission Expansion Plan National Power System Expansion Plan To overcome these (N-1) violations, more system additions were considered as follows. No. Transmission Line Additions/Modification KM 1 Bahawalpur ‐ Lodharan Lynx to Greelay 17 Km 2 Wapda Town ‐ Khanewal Road Lynx to Greelay 7 Km 3 Feroza ‐ Khanbela Lynx (New Line) 22 Km Reinforcements to overcome (N-1) violations; continue... Substation Capacitors 132 Kv Capacitor Lodharan 36 MVAR With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed MEPCO base case for Year2018 with the above mentioned system reinforcements are given in Appendix-5 (spread over 8 Sheets). 7.1.24 “HESCO & SEPCO” Distribution System for Year-2018 The Year-2018 base case was studied based on the planning criteria described in Section 12.5. The total load of HESCO and SEPCO by Year-2018 is 3,143 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.08 pu], many low voltage problems were recorded within the HESCO and SEPCO systems as given below. As mentioned in the HESCO and SEPCO 2016 analysis, the upper voltage limit for was set to 1.08 pu instead of 1.05 pu due to the coverage and radial nature of the system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0800: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) * NONE * 504760-01-A4 116 Disco Transmission Expansion Plan National Power System Expansion Plan BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 8252 WARAH 132.00 7 0.9467 124.97 8300 ROHRI 66.000 7 0.9397 62.017 8310 NARA C-1 66.000 7 0.5603 36.981 8320 NARA C-2 66.000 7 0.4986 32.910 8330 ROHRI CMT 66.000 7 0.9389 61.970 9505 MITHI 132.00 7 0.9489 125.26 80401 1 11.000 7 0.9396 10.336 80701 1 11.000 7 0.9322 10.254 80702 2 11.000 7 0.9322 10.254 80802 2 11.000 7 0.9495 10.445 80901 1 11.000 7 0.9481 10.429 81002 2 11.000 7 0.9424 10.367 81003 3 11.000 7 0.9382 10.320 81201 1 11.000 7 0.9388 10.327 81202 2 11.000 7 0.9315 10.246 81251 1 11.000 7 0.9367 10.304 81302 2 11.000 7 0.9449 10.394 82301 1 11.000 7 0.9235 10.158 82302 2 11.000 7 0.9424 10.366 82311 1 11.000 7 0.9281 10.209 82312 2 11.000 7 0.9408 10.349 82371 1 11.000 7 0.9431 10.374 82372 2 11.000 7 0.9463 10.409 82373 3 11.000 7 0.9405 10.346 82402 2 11.000 7 0.9421 10.363 82511 1 11.000 7 0.9365 10.302 82512 2 11.000 7 0.9485 10.434 82521 1 11.000 7 0.9448 10.393 82552 2 11.000 7 0.9466 10.413 83101 1 11.000 7 0.5256 5.781 83102 2 11.000 7 0.5256 5.781 83201 1 11.000 7 0.4710 5.181 83202 2 11.000 7 0.4877 5.364 83421 1 11.000 7 0.9196 10.115 83422 2 11.000 7 0.9196 10.115 84591 1 11.000 7 0.9297 10.226 84592 2 11.000 7 0.9402 10.342 84861 1 11.000 7 0.8844 90301 1 11.000 7 0.9444 10.389 90302 2 11.000 7 0.9444 10.389 90411 1 11.000 7 0.9321 10.253 91351 1 11.000 7 0.9313 10.244 91402 2 11.000 7 0.9321 10.254 94792 2 11.000 7 0.9390 10.328 95011 1 11.000 7 0.9499 10.449 95201 1 11.000 7 0.9239 10.163 95251 1 11.000 7 0.9483 10.431 9.728 -------------------------------------------------------------------------------- Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV 700 DADU AREA 220.00* 15 8020 GUDDULEF 132.00* 7 8040 MIRPUR M 132.00* 8040 MIRPUR M BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 132.00 7 1 492.7 480.0 102.6 80201 1 11.000 7 1 13.4 13.0 102.9 7 80401 1 11.000 7 1 29.5 26.0 113.5 132.00* 7 80402 2 11.000 7 1 13.2 13.0 101.8 8070 GHOTKI 132.00* 7 80701 1 11.000 7 1 27.8 26.0 107.0 8070 GHOTKI 132.00* 7 80702 2 11.000 7 1 27.8 26.0 107.0 8120 PIRJOGOTH 132.00* 7 81202 2 11.000 7 1 29.4 26.0 112.9 8130 GAMBAT 132.00* 7 81302 2 11.000 7 1 28.1 26.0 108.1 8174 SEHWAN 132.00* 7 81741 1 11.000 7 1 13.1 13.0 101.1 8174 SEHWAN 132.00* 7 81742 2 11.000 7 1 13.1 13.0 101.1 8180 KHANOT 132.00* 7 81801 1 11.000 7 1 6.6 6.5 101.0 504760-01-A4 8170 DADU NEW 117 Disco Transmission Expansion Plan National Power System Expansion Plan 8230 ARIAN RD 132.00* 7 82301 1 11.000 7 1 27.6 26.0 106.2 8231 SUKERCTY 132.00* 7 82312 2 11.000 7 1 26.8 26.0 103.2 8257 NAUDERO 132.00* 7 82571 2 11.000 7 1 14.4 13.0 111.0 8257 NAUDERO 132.00* 7 82572 1 11.000 7 1 14.4 13.0 111.0 9020 N.S.SNGR 132.00* 7 90201 1 11.000 7 1 26.9 26.0 103.5 9030 SHAHPURC 132.00* 7 90301 1 11.000 7 1 14.0 13.0 107.9 9030 SHAHPURC 132.00* 7 90302 2 11.000 7 1 14.0 13.0 107.9 9041 KANDARI 132.00* 7 90411 1 11.000 7 1 14.8 13.0 113.8 9090 HALAROAD 132.00* 7 90903 3 11.000 7 1 29.7 26.0 114.4 9135 MIR WAHG 132.00* 7 91351 1 11.000 7 1 13.3 13.0 102.1 9410 QASIMABAD-I 132.00* 7 94103 3 11.000 7 1 43.9 40.0 109.7 9410 QASIMABAD-I 132.00* 7 94104 4 11.000 7 1 43.9 40.0 109.7 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), some system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. Under HESCO: 1. Addition of 3rd 20/26 MVA Power Transformer at 132KV Grid Station N.S SNGR (9020). 2. Augmentation of T-1 & T-2 Power Transformers, with 20/26 MVA at 132KV Grid Station Shahpur Chakar (9030). 3. Addition of second 10/13 MVA Power Transformer at 132KV Grid Station Kandari (9041). 4. Augmentation of T-1 Power Transformer (20/26 MVA), with 40 MVA at 132KV Grid Station Hala Road (9090). 5. Addition of second 10/13 MVA Power Transformer at 132KV Grid Station Mir Wah Gorchani (9135). 6. Augmentation of T-1 & T-2 Power Transformers, with 20/26 MVA at 132KV Grid Station Sehwan (8174). 7. Augmentation of T-1 6.3 MVA Power Transformer, with 10/13 MVA at 132KV Grid Station Khanot (8180). 8. Augmentation of T-1 6.3 MVA Power Transformer with 10/13 at 132KV Grid Station Shalmani (8176). 504760-01-A4 118 Disco Transmission Expansion Plan National Power System Expansion Plan 9. 25 MW Load shifted from 132KV Grid Station Qasimabad-I (9410) to 132KV Grid Station Hill Top (9411) and addition of 3rd Power Transformer Bay with 40 MVA at Hill Top Grid Station (9411). 10. Reduce capacitor T-2 of 132KV Hala Grid Station and set the same up-to 4.8 MVAR (9060). Under SEPCO: 1. Addition of second 32/11KV, 10/13 MVA Power Transformer at 132KV Grid Station Guddu Left (8020). 2. Augmentation of T-2 Power Transformer from 10/13MVA to 40 MVA at 132KV Grid Station Mirpur Mathelo (8040). 3. Addition of 3rd 132/11KV 40MVA Power Transformer Bay at 132KV Grid Station Ghotki (8070). 4. Augmentation of T-1 10/13 MVA Power Transformer, with 40 MVA at 132KV Grid Station Pir Jo Goth (8120). 5. Addition of 3rd 132/11KV 40MVA Power Transformer Bay at 132KV Grid Station Gambat (8130). 6. Augmentation of T-2 10/13 MVA Power Transformer, with 40 MVA at 132KV Grid Station Arain Road (8230). 7. Addition of 3rd 132/11KV 40MVA Power Transformer Bay at 132KV Grid Station Sukkur City (8231). 8. Augmentation of T-1 & T-2 Power Transformers, with 20/26 MVA at 132KV Grid Station Naudero (8257). 9. Increase capacitor from 1.2 MVAR to 2.4 MVAR at 132KV Grid Station Rasoolabad (8341). 10. Installation of 2.4 MVAR capacitor bank, at T-1 of 132KV Grid Station Ghari Khairo (8486). 504760-01-A4 119 Disco Transmission Expansion Plan National Power System Expansion Plan With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: One severe line outage would lead to area collapse was recorded. -------------------------------------------------------------------------------- CONTINGENCY LEGEND: LABEL SINGLE 204 EVENTS : OPEN LINE FROM BUS 9190 [KOTRI SITE 132.00] TO BUS 9200 [KOTRI 132.00] CKT 1 -------------------------------------------------------------------------------- Out-of-Limits Bus Voltages: Many voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 92 <-------- B U S --------> 8310 NARA C-1 66.000 0.89635 0.95294 1.10000 0.90000 SINGLE 92 8320 NARA C-2 66.000 0.89655 0.96185 1.10000 0.90000 SINGLE 105 8252 WARAH 132.00 0.89270 0.96011 1.10000 0.90000 SINGLE 105 8485 SHADADKT 132.00 0.86714 0.98024 1.10000 0.90000 SINGLE 105 8486 GHARI KHAIRO132.00 0.85944 0.97425 1.10000 0.90000 SINGLE 111 8251 QAMBER 132.00 0.88464 0.97096 1.10000 0.90000 SINGLE 111 8252 WARAH 132.00 0.87108 0.96011 1.10000 0.90000 SINGLE 138 9025 JAM SAHIB 132.00 0.89901 0.97804 1.10000 0.90000 SINGLE 190 9494 SAMARO 66.000 0.85171 1.00292 1.10000 0.90000 SINGLE 190 9506 PITHORO 66.000 0.83967 0.99411 1.10000 0.90000 SINGLE 190 9510 NABISRRD 66.000 0.88517 0.99033 1.10000 0.90000 SINGLE 190 9595 KUNRI 66.000 0.85860 0.98842 1.10000 0.90000 SINGLE 249 9475 T.G ALI 132.00 0.85580 0.99102 1.10000 0.90000 SINGLE 249 9479 DIGRI 132.00 0.86600 0.97834 1.10000 0.90000 SINGLE 249 9505 MITHI 132.00 0.89039 0.96432 1.10000 0.90000 SINGLE 249 9520 T.JAN MO 132.00 0.88102 0.97728 1.10000 0.90000 SINGLE 256 9486 BADIN 66.000 0.82603 1.04380 1.10000 0.90000 SINGLE 256 9487 T/T.BAGO 66.000 0.83283 1.01629 1.10000 0.90000 SINGLE 256 9488 TANDO BAGO 66.000 0.82862 1.01297 1.10000 0.90000 SINGLE 256 9490 KADHAN 66.000 0.81086 1.03630 1.10000 0.90000 SINGLE 256 9515 T-KALOI 66.000 0.89774 0.99251 1.10000 0.90000 SINGLE 256 9516 KALOI 66.000 0.88069 0.97856 1.10000 0.90000 SINGLE 256 9518 PANGIRO 66.000 0.89145 0.99282 1.10000 0.90000 SINGLE 258 9487 T/T.BAGO 66.000 0.87194 1.01629 1.10000 0.90000 SINGLE 258 9488 TANDO BAGO 66.000 0.86794 1.01297 1.10000 0.90000 SINGLE 276 9487 T/T.BAGO 66.000 0.87414 1.01629 1.10000 0.90000 504760-01-A4 120 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 276 9488 TANDO BAGO 66.000 0.87020 1.01297 1.10000 0.90000 SINGLE 276 9515 T-KALOI 66.000 0.74951 0.99251 1.10000 0.90000 SINGLE 276 9516 KALOI 66.000 0.72468 0.97856 1.10000 0.90000 SINGLE 276 9518 PANGIRO 66.000 0.75645 0.99282 1.10000 0.90000 -------------------------------------------------------------------------------Due to the volume of the output, contingency list was omitted. Line/Transformer Overloads: Four marginal line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 8260*MEHAR 132.00 8270 KPN SHAH 132.00 1 SINGLE 61 112.0 121.5 113.0 % 8260*MEHAR 132.00 8270 KPN SHAH 132.00 1 SINGLE 74 112.0 112.2 103.4 9400 JAMSHORO NEW132.00 9410*QASIMABAD-I 132.00 1 SINGLE 167 184.0 192.5 104.9 9090 HALAROAD 9410*QASIMABAD-I 132.00 1 SINGLE 231 184.0 192.4 104.7 132.00 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 61 : OPEN LINE FROM BUS 8170 [DADU NEW 132.00] TO BUS 8187 [DADU-2 132.00] CKT 1 SINGLE 74 : OPEN LINE FROM BUS 8187 [DADU-2 132.00] TO BUS 8260 [MEHAR 132.00] CKT 1 SINGLE 167 : OPEN LINE FROM BUS 9090 [HALAROAD 132.00] TO BUS 9410 [QASIMABAD-I 132.00] CKT 1 SINGLE 231 : OPEN LINE FROM BUS 9400 [JAMSHORO NEW132.00] TO BUS 9410 [QASIMABAD-I 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. Under HESCO: 1. Second Circuit from Kotri Power House (9200) to 132KV Grid Station Kotri Site (9190) with Greeley Conductor. 2. Second circuit from New Jamshoro (9400) – Qasimabad-I (9410) – Hala Road (9090) Grid Station with Rail Conductor. 3. Increase capacitor from 2.4 MVAR to 3.6 MVAR at T-1 of 66KV Grid Station Kadhan (9490). 4. Add 1.2 MVAR capacitor Bank, at T-1 of 66KV Grid Station Tando Bago (9488). 504760-01-A4 121 Disco Transmission Expansion Plan National Power System Expansion Plan 5. Increase capacitor Bank from 20.22 to 30.33 MVAR at 132KV Grid Station Noukot (9501). 6. Add 1.2 MVAR capacitor Bank, at T-1 of 66KV Grid Station Kunri (9595). 7. Add 1.2 MVAR capacitor Bank, at T-2 of 132KV Grid Station Digri (9479). 8. Add 2.4 MVAR capacitor Bank, at T-1 of 132KV Grid Station T.G Ali (9475). 9. Add 2.4 MVAR capacitor Bank, at T-1 of 66KV Grid Station Pangrio (9518). 10. Increase Capacitor from 1.2 MVAR to 4.8 MVAR at T-1 of 66KV Grid Station Kaloi (9516). Under SEPCO: 1. Second circuit from 132KV Grid Station Mehar (8260) to 132KV Grid Station KPN Shah (8270) with Greeley Conductor. 2. Install 12MVAR capacitor Bank at 132KV Grid Station Shdadkot (8485). 3. Increase capacitor Bank from 4.8 to 7.2 MVAR at T-2 of 132KV Grid Station Shdadkot (8485). With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed HESCO and SEPCO base case for Year-2018 with the above mentioned system reinforcements are given in Appendix-5 (spread over 12 Sheets). 7.1.25 “QESCO” Distribution System for Year-2018 The Year-2018 base case was studied based on the planning criteria described in Section 12.5. The total load of QESCO by Year-2018 is 2,020 MW. 504760-01-A4 122 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], two marginal low voltage problems were recorded within the QESCO system as given below. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA 9770 ZHOB 132.00 V(PU) V(KV) 8 0.9475 125.07 BUS# X-- NAME --X BASKV AREA 80040 PANJGUR 132.00 8 0.9390 123.95 -------------------------------------------------------------------------------- Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 645 MASTUNG 220.00* 15 9780 MASTUNG 132.00 8 1 435.8 320.0 136.2 970 QUETTA 220.00* 15 9660 QUETTAIN 132.00 8 1 744.1 480.0 155.0 9600 SIBBI 132.00* 8 96001 11.000 8 1 26.1 26.0 100.5 9600 SIBBI 132.00* 8 96002 11.000 8 1 26.1 26.0 100.5 9655 DARWAZA 132.00* 8 96551 11.000 8 1 28.4 26.0 109.3 9670 SARYAB 132.00* 8 96703 T-3 11.000 8 1 40.7 40.0 101.9 9680 Q.CITY 132.00* 8 96801 11.000 8 1 42.5 40.0 106.1 9680 Q.CITY 132.00* 8 96802 11.000 8 1 42.5 40.0 106.1 9710 PISHIN 132.00* 8 97101 11.000 8 1 29.2 26.0 112.1 9710 PISHIN 132.00* 8 97102 11.000 8 1 29.6 26.0 114.0 9710 PISHIN 132.00* 8 97104 11.000 8 1 29.2 26.0 112.1 9780 MASTUNG 132.00* 8 97801 11.000 8 1 30.3 26.0 116.5 9810 NOSHKI 132.00* 8 98101 11.000 8 1 34.2 26.0 131.4 9810 NOSHKI 132.00* 8 98102 11.000 8 1 16.8 13.0 129.2 80020 TURBAT 132.00* 8 80022 T-2 11.000 8 1 15.4 13.0 118.1 -------------------------------------------------------------------------------- 504760-01-A4 123 Disco Transmission Expansion Plan National Power System Expansion Plan Before performing the contingency analysis (N-1), one line was added to solve the (N-0) violations, as follows. New Grid Stations: 1. 132 KV PCSIR Hazarganji In/Out from Quetta Industrial to Pishin circuit to give relieve to Quetta Industrial and Sariab Grid Station 2. 132 KV Nohsar Grid Station In/Out from Quetta Industrial to Pishin circuit to give relieve to Q.S.Manda and Sariab Grid Station 3. Conversion of 33 KV to 132 KV Isplenji Grid Station with allied T/L 4. Conversion of 66 KV Gandakha Grid Station to 132 KV with allied T/L 5. Conversion of 66 KV Sorrange Grid Station to 132 KV with allied T/L Augmentation/Extension of Power Transformers: 1. Additional 26 MVA T/F at Sibi Grid Station 2. Augmentation of 13 with 40 MVA T/F at Noshki Grid Station 3. Additional 40 MVA T/F at Quetta City Grid Station 4. Augmentation of 26 with 40 MVA at 132 KV Mastung Grid Station 5. Augmentation of T-1 & T-2 26 with 40 MVA T/Fs at 132 KV Pishin Grid Station 6. Augmentation of 26 with 40 MVA T/F at 132 KV Darwaza Grid Station 7. Augmentation of 13 with 26 MVA T/F at 132 KV Turbat Grid Station Installation of Fixed Shunts: 1. Installation of 12 MVAR (132 KV side) at M/Pur Grid Station 2. Installation of 3.6 MVAR for T-2 at Turbat Grid Station 504760-01-A4 124 Disco Transmission Expansion Plan National Power System Expansion Plan Lines: 1. 2nd circuit from Quetta Industrial to Q.S.Manda 30 Km with Rail conductor. With the above line addition, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: Only one contingency would lead to three low voltage problems was recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 108 <-------- B U S --------> 9850 GIDDER 132.00 0.82666 0.99962 1.10000 0.90000 SINGLE 108 9855 KHARAN 132.00 0.89564 1.01565 1.10000 0.90000 SINGLE 108 9859 BASIMA 132.00 0.84642 1.00462 1.10000 0.90000 CONTINGENCY LEGEND: LABEL SINGLE 108 EVENTS : OPEN LINE FROM BUS 9840 [SURAB 132.00] TO BUS 9850 [GIDDER 132.00] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: One very marginal overloading problem was recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES AND INTERFACES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 9787 KANAK 132.00 9790*PANJPAI 132.00 2 SINGLE 90 112.0 115.0 100.2 % 9787 KANAK 132.00 9790*PANJPAI 132.00 1 SINGLE 91 112.0 115.0 100.2 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 90 : OPEN LINE FROM BUS 9787 [KANAK 132.00] TO BUS 9790 [PANJPAI 132.00] CKT 1 SINGLE 91 : OPEN LINE FROM BUS 9787 [KANAK 132.00] TO BUS 9790 [PANJPAI 132.00] CKT 2 504760-01-A4 125 Disco Transmission Expansion Plan National Power System Expansion Plan -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. Re-Conductoring: 1. 1st Kanak (9787) to Panjpai (9790) – Lynx with Greeley Fixed Shunt: 1. 132 KV Kharan T-3 – 7.2 MVAR 2. Noshki 132 KV side – 24 MVAR new capacitor bank 3. 7.2 MVAR on 132 KV side at Hoshab G/S With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed QESCO base case for Year2018 with the above mentioned system reinforcements are given in Appendix-5 (spread over 5 Sheets). 7.1.26 Year-2020 Study Base Cases As mentioned in the methodology (Section 12.6), each DISCO has prepared the Year2020 case based of the following: a) The final Year-2018 case with all reinforcements developed in Section 12.7.3 b) Load forecast of Year-2020 The load flow results are given for each DISCO independently in three main activities. a) Analysing the developed case under both normal (N-0) and contingency (N-1) conditions b) Identifying system reinforcements as appropriate c) Re-checking the system under (N-0) and (N-1) with system reinforcements 504760-01-A4 126 Disco Transmission Expansion Plan National Power System Expansion Plan 7.1.27 “PESCO & TESCO” Distribution System for Year-2020 The Year-2020 base case was studied based on the planning criteria described in Section 12.5. The total loads of PESCO and TESCO by Year-2020 are 3,674 MW and 1,278 MW, respectively (combined: 4,953 MW). Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], some voltage problems were recorded within the PESCO and TESCO systems as given below. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA 1691 DIR 33.000 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 1 1.0504 34.663 BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA 1351 DATAKHEL 132.00 1601 T-SSPS 66.000 1605 SSPS 66.000 1880 DARABAN V(PU) V(KV) 10 0.9368 123.65 1355 RAZMAK 132.00 10 0.9421 124.36 1 0.9099 60.057 1602 WARSAK-D 66.000 1 0.8927 58.917 10 0.9092 60.007 1775 PARACINA 132.00 10 0.9479 125.13 1 0.9457 10.403 66.000 1 0.9428 62.227 11421 T1 11.000 13381 T1 11.000 1 0.9460 10.406 13382 T2 11.000 1 0.9460 10.406 13502 T1 11.000 10 0.9350 10.285 13503 T2 11.000 10 0.9194 10.113 13504 T3 11.000 10 0.9235 10.159 13511 T1 11.000 10 0.9153 10.068 13512 T2 11.000 10 0.9152 10.067 13551 T3 11.000 10 0.9339 10.273 16021 T1 11.000 1 0.8646 9.510 16022 T2 11.000 16051 T1 11.000 10 0.8818 9.700 1 0.8646 9.510 -------------------------------------------------------------------------------- Line/Transformer Overloads: Some overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV 504760-01-A4 AREA BUS# X-- NAME --X BASKV 127 AREA CKT LOADING RATING PERCENT Disco Transmission Expansion Plan National Power System Expansion Plan 1080 SWABI 132.00* 1 10801 T1 11.000 1 1 41.3 40.0 103.2 1080 SWABI 132.00* 1 10802 T2 11.000 1 1 26.6 26.0 102.3 1142 K.KHELA 132.00* 1 11421 T1 11.000 1 1 29.1 26.0 111.9 1170 NOWSHR-I 132.00* 1 11701 T1 11.000 1 1 26.2 26.0 100.7 1270 PESH UNI 132.00* 1 12701 T1 11.000 1 1 41.1 40.0 102.8 1270 PESH UNI 132.00* 1 12702 T2 11.000 1 1 41.6 40.0 104.1 1270 PESH UNI 132.00* 1 12703 T3 11.000 1 1 41.6 40.0 104.1 1306 K.T SHIP 132.00* 1 13061 T1 11.000 1 1 27.1 26.0 104.1 1306 K.T SHIP 132.00* 1 13062 T2 11.000 1 1 13.5 13.0 104.1 1336 SABIR ABAD 132.00* 1 13361 T1 11.000 1 1 14.9 13.0 114.5 1375 NATIAGLI 132.00* 1 13751 T1 11.000 1 1 27.0 26.0 103.7 1380 MANSEHRA 132.00* 1 13801 T1 11.000 1 1 40.1 40.0 100.3 1380 MANSEHRA 132.00* 1 13802 T2 11.000 1 1 26.2 26.0 100.9 1460 TANK 132.00* 1 14602 T6 11.000 1 1 27.2 26.0 104.8 1670 TIMRGARH 66.000* 1 16702 T2 11.000 1 1 13.4 13.0 103.3 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), many system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. PESCO Reinforcements New Grid Stations: 1. New 132 KV Dargai Charsadda with 2*20/26 MVA & In-Out feed from MardanNaguman 6 KM with Lynx. 2. New 132 KV Baja Bam Khel with 2*20/26 MVA & feed from Gadoon-Swabi 4km with Lynx. 3. New 132 KV Ring Road with 2*20/26 MVA and 1*40 MVA feed from S/Muhammadi-HayatAbad with In/Out. 4. New 132 KV Shinkyari with 2*10/13 MVA In/Out from Oghi-Battal length 4 KM with Lynx. 5. New 132 KV Salarzai (Bunir) with 2*20/26 MVA feed from 132 KV Daggar, 15 KM SDT line with Lynx. 6. New 132 KV Akora Khattak with 2*26 MVA feed from Nawshehra-AkoraJahangira 35km SDT with Rail. 504760-01-A4 128 Disco Transmission Expansion Plan National Power System Expansion Plan 7. New 132 KV Kot Mortaza D.I Khan with 2*10/13 MVA In-Out from Tank-Gomal Zam length 5 km with Lynx. 8. New 132 KV Tajori with 2*10/13 MVA feed from Tajazai, 15 km SDT line with Lynx. Augmentations: 1. 20/26 by 40 MVA at T-2, 132 KV Swabi. 2. 10/13 by 20/26 MVA atT-2, 132 KV Kotal Town Ship. 3. 20/26 by 40 MVA at T-1, 132 KV Charsadda. 4. 10/13 by 20/26 MVA at T-2, 132 KV Nawshehra Industrial. Extensions: 1. Extension with 20/26 MVA at 132 KV Mardan. 2. Extension with 20/26 at 132 KV Khwaza Khela. 3. Extension with 10/13 MVA at 132 KV Sabir Abad. 4. Extension with 10/13 MVA at 132 KV Nathiagali. Conversion of 66 kV Grid Station: 1. 132 KV Timergiera with 1*10/13 MVA and 1*20/26 MVA feed from 132 KV Timergera 5 km SDT line with Lynx. 2. 132 KV Kulachi with 2*10/13 MVA, 45 KM SDT line with Lynx feed form D.I.Khan. 3. 132 KV Daraband with 2*10/13 MVA, 25 KM SDT line with lynx feed from Kulachi. 504760-01-A4 129 Disco Transmission Expansion Plan National Power System Expansion Plan TESCO Reinforcements New Grid Stations: 1. 132 KV Mohmand Marble City with 2*20/26 MVA feed from Warsak 9 KM SDT line with Lynx. 11 kV Capacitors: 1. 2.4 MVAR at T-1, 66 KV Sper Sang G/S. With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse was recorded. Out-of-Limits Bus Voltages: Some low voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 144 <-------- B U S --------> 1775 PARACINA 132.00 0.88903 0.97201 1.10000 0.90000 SINGLE 152 1775 PARACINA 132.00 0.86748 0.97201 1.10000 0.90000 SINGLE 156 1335 KARAK 132.00 0.86803 1.01626 1.10000 0.90000 SINGLE 156 1336 SABIR ABAD 132.00 0.85800 1.00861 1.10000 0.90000 SINGLE 156 1338 SIRAJ BABA 132.00 0.86256 1.01178 1.10000 0.90000 SINGLE 169 1346 MIR ALI 132.00 0.87489 1.01092 1.10000 0.90000 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 144 : OPEN LINE FROM BUS 1302 [GURGURI 132.00] TO BUS 1332 [BANNU-N SINGLE 152 : OPEN LINE FROM BUS 1315 [TALL 132.00] TO BUS 1755 [SADDA TESCO 132.00] CKT 1 132.00] CKT 1 SINGLE 156 : OPEN LINE FROM BUS 1332 [BANNU-N 132.00] TO BUS 1335 [KARAK 132.00] CKT 1 SINGLE 169 : OPEN LINE FROM BUS 1342 [BANNU-II 132.00] TO BUS 1346 [MIR ALI 132.00] CKT 1 -------------------------------------------------------------------------------- 504760-01-A4 130 Disco Transmission Expansion Plan National Power System Expansion Plan Line/Transformer Overloads: A few marginal line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 132.00 1760*ALIZAI 132.00 2 SINGLE 152 112.0 115.7 112.0 1755 SADDA TESCO 132.00 1760*ALIZAI 132.00 1 SINGLE 152 112.0 106.6 103.2 1315*TALL 132.00 1755 SADDA TESCO 132.00 1 SINGLE 153 112.0 119.4 108.8 1300 KOHAT 132.00 1320*LACHI 132.00 1 SINGLE 156 112.0 113.4 105.0 1332*BANNU-N 132.00 1340 BANNU 132.00 2 SINGLE 157 112.0 122.8 105.6 1332*BANNU-N 132.00 1340 BANNU 132.00 2 SINGLE 159 112.0 122.8 105.6 1315 TALL % CONTINGENCY LEGEND: LABEL EVENTS SINGLE 152 : OPEN LINE FROM BUS 1315 [TALL 132.00] TO BUS 1755 [SADDA TESCO 132.00] CKT 1 SINGLE 153 : OPEN LINE FROM BUS 1315 [TALL 132.00] TO BUS 1760 [ALIZAI 132.00] CKT 2 SINGLE 156 : OPEN LINE FROM BUS 1332 [BANNU-N 132.00] TO BUS 1335 [KARAK 132.00] CKT 1 SINGLE 157 : OPEN LINE FROM BUS 1332 [BANNU-N 132.00] TO BUS 1340 [BANNU 132.00] CKT 1 SINGLE 159 : OPEN LINE FROM BUS 1332 [BANNU-N 132.00] TO BUS 1340 [BANNU 132.00] CKT 3 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. PESCO Reinforcements 11 kV Capacitors: 1. 4.8 MVAR Caps at T-1, 132 KV Shakardara G/S. 2. 4.8 MVAR Caps each at T-1 & T-2, 132 KV Siraj Baba G/S. 3. 4.8 MVAR Caps at T-2, 132 KV Sabir Abad G/S. 4. 7.2 MVAR Caps at T-2, 132 KV Battal G/S. T/ Lines: 1. Reconductoring of 2nd Ckt 132 KV Domel -Bannu line with Greeley conductor length 16 KM. 504760-01-A4 131 Disco Transmission Expansion Plan National Power System Expansion Plan TESCO Reinforcements 132 kV Capacitors: 1. 48 MVAR Caps at 132 KV Miranshah G/S. 2. 24 MVAR Caps at 132 KV Parachinar G/S. T/ Lines: 1. Additional Ckt Tall-Sadda 39.3 KM with Lynx. With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed PESCO and TESCO base case for Year-2020 with the above mentioned system reinforcements are given in Appendix-6 (spread over 9 Sheets). 7.1.28 “IESCO” Distribution System for Year-2020 The Year-2020 base case was studied based on the planning criteria described in Section 12.5. The total load of IESCO by Year-2020 is 4,273 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], no voltage problems were recorded within the IESCO system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA 504760-01-A4 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA 132 Disco Transmission Expansion Plan National Power System Expansion Plan * NONE * -------------------------------------------------------------------------------- Line/Transformer Overloads: A few overloading problems was recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 210 BURHAN 220.00* 15 2020 BURHAN 132.00 2 1 540.3 480.0 112.6 212 TAXILA 220.00* 15 2100 TAXILA 132.00 2 1 594.4 500.0 118.9 215 IBD.P.RD 220.00* 15 2025 SANGJANI 132.00 2 1 570.5 480.0 118.9 216 ISLMBD-U 220.00* 15 2240 ISB-UNIVERTY132.00 2 1 612.4 500.0 122.5 220 REWAT-N 220.00* 15 2300 REWAT NEW 132.00 2 1 561.7 480.0 117.0 220 REWAT-N 220.00* 15 2300 REWAT NEW 132.00 2 2 254.8 160.0 159.2 230 MANGLA 220.00 15 2400 MANGLA 132.00* 2 1 429.6 414.0 103.8 Note: 220/132kv Power Transformers relate to NTDC. -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), system reinforcements including new grid stations and augmentations were added as follows. Augmentation of Power Transformers: Bus # 20603 Name of 132kV Grid Station New Wah Existing Capacity (MVA) 3x26 Proposed Capacity (MVA) 2x26, 1x40 Addition of Power Transformers: Bus # 21053 22713 504760-01-A4 Name of 132kV Grid Station Margala Sowan Existing Capacity (MVA) 2x26 2x26 133 Proposed addional Capacity (MVA) 1x40 1x40 Disco Transmission Expansion Plan National Power System Expansion Plan Installation of New 11KV Switch-Shunt Capacitor Banks: Sr. No. 1 2 3 4 5 6 7 8 9 10 11 Bus No. 22661 22662 22671 22672 22673 21761 21762 21053 22713 21551 20603 Name of Grid Station Bahria Town Golf City Bahria Town Golf City NPF NPF NPF Bagh Bagh Margala Sowan Bahria Town Ph‐4 New Wah Capacitor (MVAR) 9.6 9.6 7.2 7.2 7.2 2.4 2.4 7.2 7.2 12 9.6 Reconductoring of 132 kv Transmission Lines: 1. Rewat to Adyala Lynx to Greely 28 KM 2. Adyala to Chakri Lynx to Greely 33 KM With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: No voltage problems were recorded (outside: 0.90 – 1.10 pu). Line/Transformer Overloads: No line overloading problems were recorded based on 100% of rating A. 504760-01-A4 134 Disco Transmission Expansion Plan National Power System Expansion Plan System additions were considered as follows. Reconductoring of 132 kv Transmission Lines: 1. Rewat to Adyala Lynx to Greely 28 KM 2. Adyala to Chakri Lynx to Greely 33 KM 3. Kahuta City to Azad Pattan Lynx to Greely 25.8 KM 4. Azad Pattan to Plandri Lynx to Greely 15 KM 5. Plandri to Tara Khel Lynx to Greely 25 KM 6. Hayatt Hotel to University Lynx to Greely 3KM 7. Rawal to University Lynx to Greely 10km New 132 kv Transmission Lines: 1. Rewat New to Kamalabad SDT with Rail conductor 23KM 2. GHQ to H-11 SDT with Rail Conductor 6 KM With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed IESCO base case for Year2020 with the above mentioned system reinforcements are shown in Appendix-6 (spread over 9 Sheets). 7.1.29 “GEPCO” Distribution System for Year-2020 The Year-2020 base case was studied based on the planning criteria described in Section 12.5. The total load of GEPCO by Year-2020 is 3,279 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria- [0.95-1.05 pu], one marginal voltage problem was recorded within the GEPCO system. 504760-01-A4 135 Disco Transmission Expansion Plan National Power System Expansion Plan -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA 3522 SHAKARGR 132.00 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA 3 0.9328 123.14 -------------------------------------------------------------------------------- Line/Transformer Overloads: A few marginal overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 3004 KHARIAN 132.00* 3 30041 T1 11.000 3 1 28.4 26.0 109.4 3004 KHARIAN 132.00* 3 30042 T2 11.000 3 1 27.3 26.0 104.8 3007 BHIMBER 132.00* 3 30071 T1 11.000 3 1 26.1 26.0 100.5 3009 LALAMUSA 132.00* 3 30092 T2 11.000 3 1 26.1 26.0 100.2 3009 LALAMUSA 132.00* 3 30093 T3 11.000 3 1 26.0 26.0 100.0 3013 GUJRAT-1 132.00* 3 30131 T1 11.000 3 1 42.4 40.0 106.1 3013 GUJRAT-1 132.00* 3 30132 T2 11.000 3 1 26.7 26.0 102.8 3013 GUJRAT-1 132.00* 3 30133 T3 11.000 3 1 26.7 26.0 102.6 3016 GUJRAT-2 132.00* 3 30161 T1 11.000 3 1 30.3 26.0 116.6 3016 GUJRAT-2 132.00* 3 30162 T2 11.000 3 1 30.0 26.0 115.3 3016 GUJRAT-2 132.00* 3 30163 T3 11.000 3 1 29.9 26.0 115.1 3053 KOT AGHA 132.00* 3 30531 T1 11.000 3 1 14.0 13.0 107.7 3060 SLK.CANT 132.00* 3 30601 T1 11.000 3 1 42.8 40.0 107.1 3060 SLK.CANT 132.00* 3 30602 T2 11.000 3 1 26.3 26.0 101.1 3060 SLK.CANT 132.00* 3 30603 T3 11.000 3 1 26.7 26.0 102.5 3135 S.W.BAGH 132.00* 3 31351 T1 11.000 3 1 40.3 40.0 100.8 3135 S.W.BAGH 132.00* 3 31352 T2 11.000 3 1 40.3 40.0 100.8 3150 EMINABAD 132.00* 3 31501 T-1 11.000 3 1 26.7 26.0 102.8 3170 KAMOKI 132.00* 3 31703 T-3 11.000 3 1 27.0 26.0 104.0 3200 GJRNWALA 66.000* 3 31101 T-6 11.000 3 1 15.1 13.0 115.8 3520 NAROWAL 132.00 3 132.00* 3 1 113.8 112.0 101.6 3521 ESSA -------------------------------------------------------------------------------- 504760-01-A4 136 Disco Transmission Expansion Plan National Power System Expansion Plan Before performing the contingency analysis (N-1), four system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. 1. Augmentation of 13 MVA power transformer (T3) with 26 MVA power transformer at 132 kV Bhimber grid station 2. Augmentation of 26 MVA power transformer (T1) with 40 MVA power transformer at 132 kV Gujrat-2 grid station 3. Augmentation of 26 MVA power transformer (T2) with 40 MVA power transformer at 132 kV Cantt Sailkot grid station 4. Augmentation of 13 MVA power transformer (T1) with 26 MVA power transformer at 132 kV Kot Agha grid station Summary for (N-1) Results Severe Outage Cases: Two severe line outages would lead to area collapse were recorded. -------------------------------------------------------------------------------- CONTINGENCY LEGEND: LABEL EVENTS SINGLE 75 : OPEN LINE FROM BUS 3080 [SLK.NEW 132.00] TO BUS 3105 [SAHUWALA 132.00] CKT 2 SINGLE 96 : OPEN LINE FROM BUS 3135 [S.W.BAGH 132.00] TO BUS 3140 [G.P.ROAD 132.00] CKT 1 -------------------------------------------------------------------------------- Out-of-Limits Bus Voltages: No voltage problems were recorded (outside: 0.90 – 1.10 pu). Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW % 3001 NANDPR-G 132.00 3140*G.P.ROAD 132.00 1 SINGLE 18 182.0 248.0 136.3 3001 NANDPR-G 132.00 3136*C BANK GRW 132.00 2 SINGLE 19 182.0 252.2 136.0 3136 C BANK GRW 132.00 3140*G.P.ROAD 132.00 1 SINGLE 19 182.0 208.1 113.8 504760-01-A4 137 Disco Transmission Expansion Plan National Power System Expansion Plan 3009*LALAMUSA 132.00 3013 GUJRAT-1 132.00 2 SINGLE 34 90.0 146.4 168.1 3009*LALAMUSA 132.00 3013 GUJRAT-1 132.00 1 SINGLE 35 90.0 146.4 168.1 3013*GUJRAT-1 132.00 3316 NEW GUJRAT 132.00 4 SINGLE 43 182.0 267.9 144.7 3013*GUJRAT-1 132.00 3316 NEW GUJRAT 132.00 3 SINGLE 44 182.0 267.9 144.7 3080*SLK.NEW 132.00 3105 SAHUWALA 132.00 2 SINGLE 63 182.0 180.4 101.4 3135*S.W.BAGH 132.00 3140 G.P.ROAD 132.00 1 SINGLE 95 182.0 198.1 111.7 3001 NANDPR-G 132.00 3140*G.P.ROAD 132.00 1 SINGLE 97 182.0 209.7 114.1 3080*SLK.NEW 132.00 3105 SAHUWALA 132.00 2 SINGLE 103 182.0 180.5 105.8 3080*SLK.NEW 132.00 3240 SKT.NEW 66.000 1 SINGLE 103 37.5 55.6 148.2 3230*DASKA 66.000 3240 SKT.NEW 66.000 1 SINGLE 103 39.0 36.3 143.4 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 18 : OPEN LINE FROM BUS 3001 [NANDPR-G 132.00] TO BUS 3136 [C BANK GRW 132.00] CKT 2 SINGLE 19 : OPEN LINE FROM BUS 3001 [NANDPR-G 132.00] TO BUS 3140 [G.P.ROAD 132.00] CKT 1 SINGLE 34 : OPEN LINE FROM BUS 3009 [LALAMUSA 132.00] TO BUS 3013 [GUJRAT-1 132.00] CKT 1 SINGLE 35 : OPEN LINE FROM BUS 3009 [LALAMUSA 132.00] TO BUS 3013 [GUJRAT-1 132.00] CKT 2 SINGLE 43 : OPEN LINE FROM BUS 3013 [GUJRAT-1 132.00] TO BUS 3316 [NEW GUJRAT 132.00] CKT 3 SINGLE 44 : OPEN LINE FROM BUS 3013 [GUJRAT-1 132.00] TO BUS 3316 [NEW GUJRAT 132.00] CKT 4 SINGLE 63 : OPEN LINE FROM BUS 3050 [S.P.ROAD 132.00] TO BUS 3090 [SLK-CITY 132.00] CKT 1 SINGLE 95 : OPEN LINE FROM BUS 3130 [TH.SANSI 132.00] TO BUS 3151 [CHEANWLI 132.00] CKT 1 SINGLE 97 : OPEN LINE FROM BUS 3136 [C BANK GRW 132.00] TO BUS 3140 [G.P.ROAD 132.00] CKT 1 SINGLE 103 : OPEN LINE FROM BUS 3220 [NANDIPUR 66.000] TO BUS 3230 [DASKA 66.000] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. 1. Proposed double circuit new line (25 km) on Rail conductor from Sahuwala to Pasrup Road Sialkot. 2. Additions of many capacitor banks at the 11 kV voltage level. With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed GEPCO base case for Year2020 with the above mentioned system reinforcements are shown in Appendix-6 (spread over 5 Sheets). 7.1.30 “LESCO” Distribution System for Year-2020 The Year-2020 base case was studied based on the planning criteria described in Section 12.5. The total load of LESCO by Year-2020 is 6,538 MW. 504760-01-A4 138 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], one marginal voltage problem was recorded within the LESCO system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA 271 WAPDATWN 220.00 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA 4 0.9348 205.66 -------------------------------------------------------------------------------- Line/Transformer Overloads: No overloading problems were recorded based on 100% of rating A. No system reinforcements were added. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: No voltage problems were recorded (outside: 0.90 – 1.10 pu). Line/Transformer Overloads: Many line overloading problems were recorded based on 100% of rating A. 504760-01-A4 139 Disco Transmission Expansion Plan National Power System Expansion Plan -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES AND INTERFACES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 6 112.0 112.2 100.7 % 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 21 112.0 112.1 100.5 4012 LAHORE 132.00 4029*ATTABAD 132.00 2 SINGLE 25 202.0 229.4 112.3 4012 LAHORE 132.00 4029*ATTABAD 132.00 1 SINGLE 26 202.0 229.4 112.3 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 44 112.0 112.0 100.3 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 45 112.0 112.0 100.3 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 48 112.0 112.1 100.4 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 49 112.0 112.1 100.4 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 50 112.0 112.5 100.9 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 51 112.0 116.5 104.8 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 52 112.0 116.5 104.8 4144 NKLP-1 132.00 4596*DFNCE YK 132.00 1 SINGLE 158 202.0 213.6 108.1 4096 GHAZI 132.00 4104*AIRPORT 132.00 1 SINGLE 238 202.0 213.5 110.7 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 268 112.0 113.4 101.8 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 273 112.0 112.2 100.7 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 279 112.0 112.0 100.4 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 293 112.0 113.0 101.4 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 294 112.0 112.8 101.1 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 296 112.0 112.1 100.5 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 297 112.0 112.4 100.7 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 299 112.0 111.9 100.2 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 305 112.0 111.9 100.2 4210 OKARA-C1 132.00 4876*OKARA-N 132.00 1 SINGLE 307 112.0 127.0 109.2 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 307 112.0 118.0 105.7 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 310 112.0 112.8 101.0 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 311 112.0 112.8 101.0 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 315 112.0 111.9 100.1 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 316 112.0 128.6 115.1 4217*DEPALPUR 132.00 4876 OKARA-N 132.00 1 SINGLE 322 112.0 132.6 119.2 4210*OKARA-C1 132.00 4876 OKARA-N 132.00 1 SINGLE 325 112.0 134.5 118.0 -------------------------------------------------------------------------------Due to the volume of the output, contingency list was omitted. To overcome these (N-1) violations, more system additions were considered as follows. 1. Re-conductoring of loop line between KEL-IPP and Sarfraz nagar – Kasur T/Line on rail conductor. 2. Re-conductoring of 132kV Lahore – Attabad 6Km T/Line on rail conductor with Twin Bundled Rail Conductor. 3. Re-conductoring of 132kV NKLP-Defence-Ghazi approx.20 Km T/Line on rail conductor with Twin Bundled Rail Conductor. 504760-01-A4 140 Disco Transmission Expansion Plan National Power System Expansion Plan 4. A new D/C underground 1200mm2 XLPE cable from 132kV Shadman – Sunny View. 5. In/Out of 2nd Circuit of 132kV Saidpur-Iqbal Town Transmission Line at Iqbal Town grid station for making Double In/Out at Iqbal Town grid station. With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed LESCO base case for Year2020 with the above mentioned system reinforcements are shown in Appendix-6 (spread over 9 Sheets). 7.1.31 “FESCO” Distribution System for Year-2020 The Year-2020 base case was studied based on the planning criteria described in Section 12.5. The total load of FESCO by Year-2020 is 4,604 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], some voltage problems were recorded within the FESCO system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA 4356 BANDALN 132.00 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 5 1.0544 139.19 BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 4290 BHOWANA 132.00 5 0.9316 122.97 5200 BHAKKAR 4485 AHMED PUR SI132.00 5 0.9430 124.48 5210 BEHAL 66.000 5 0.9405 62.071 66.000 5 0.9013 59.487 42901 T1 11.000 5 0.9196 10.116 42902 T2 11.000 5 0.9096 10.005 44521 T1 11.000 5 0.9403 10.344 44522 T2 11.000 5 0.9403 10.344 44841 T1 11.000 5 0.9328 10.261 44842 T2 11.000 5 0.9328 10.261 44851 T1 11.000 5 0.9186 10.105 44852 T2 11.000 5 0.9186 10.105 44904 T4 11.000 5 0.9350 10.285 45001 T1 11.000 5 0.9332 10.265 45002 T2 11.000 5 0.9179 10.097 45011 T1 11.000 5 0.9464 10.411 45502 T2 11.000 5 0.9346 10.281 45503 T3 11.000 5 0.9394 10.333 50461 T1 11.000 5 0.9205 10.126 50462 T2 11.000 5 0.9278 10.205 504760-01-A4 141 Disco Transmission Expansion Plan National Power System Expansion Plan 50471 T1 11.000 5 0.9274 10.201 52001 T1 11.000 5 0.8191 9.010 52101 T1 11.000 5 0.8814 9.695 52102 T2 11.000 5 0.8928 9.821 54401 T1 11.000 5 0.9433 10.376 56902 T2 11.000 5 0.9331 10.265 -------------------------------------------------------------------------------- Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA 401 M3-IND 220.00* 15 4290 BHOWANA 132.00* 5 4320 CHNIOT-I 132.00* BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 132.00 5 1 528.8 500.0 105.8 42901 T1 11.000 5 1 44.7 40.0 111.7 5 43201 T1 11.000 5 1 45.0 40.0 112.6 4323 CHNAB NAGAR 132.00* 5 43231 T1 11.000 5 1 26.4 26.0 101.4 4323 CHNAB NAGAR 132.00* 5 43232 T2 11.000 5 1 13.2 13.0 101.4 4338 KHURNWLA 132.00* 5 43383 T3 11.000 5 1 13.7 13.0 105.3 4339 MILLATRD 132.00* 5 43391 T1 11.000 5 1 29.5 26.0 113.3 4339 MILLATRD 132.00* 5 43392 T2 11.000 5 1 14.7 13.0 113.3 4380 FBD-TH-O 132.00* 5 43801 T1 11.000 5 1 44.4 40.0 111.1 4400 CHK.JMRA 132.00* 5 44001 T1 11.000 5 1 26.5 26.0 101.9 4400 CHK.JMRA 132.00* 5 44002 T2 11.000 5 1 26.5 26.0 101.9 4414 STIANA RD 132.00* 5 44141 T1 11.000 5 1 28.7 26.0 110.5 4420 AGR.UNIV 132.00* 5 44203 T3 11.000 5 1 29.2 26.0 112.4 4421 USMAN GANI 132.00* 5 44211 T1 11.000 5 1 33.3 26.0 127.9 4430 NAR.W.RD 132.00* 5 44303 T3 11.000 5 1 42.1 40.0 105.3 4440 JHANG.RD 132.00* 5 44402 T2 11.000 5 1 54.9 40.0 137.3 4440 JHANG.RD 132.00* 5 44403 T3 11.000 5 1 53.1 40.0 132.8 4452 AMIN PUR R 132.00* 5 44521 T1 11.000 5 1 15.2 13.0 117.2 4452 AMIN PUR R 132.00* 5 44522 T2 11.000 5 1 15.2 13.0 117.2 4478 T.T.SING 132.00* 5 44781 T3 11.000 5 1 40.8 40.0 102.1 4482 PIRMEHL 132.00* 5 44822 T2 11.000 5 1 41.4 40.0 103.4 4484 GM RAJA 132.00* 5 44841 T1 11.000 5 1 15.2 13.0 117.1 4484 GM RAJA 132.00* 5 44842 T2 11.000 5 1 15.2 13.0 117.1 4520 TNDLWALA 132.00* 5 45203 T3 11.000 5 1 40.1 40.0 100.1 4776 THERML-O 66.000* 5 47761 T1 11.000 5 1 14.3 13.0 110.3 5200 BHAKKAR 66.000 5 132.00* 5 1 41.1 40.0 102.6 5200 BHAKKAR 66.000* 5 52001 T1 11.000 5 1 24.5 13.0 188.3 5425 KIRANAHL 132.00* 5 54251 T1 11.000 5 1 29.0 26.0 111.5 5425 KIRANAHL 132.00 5 54252 T2 11.000* 5 1 28.9 26.0 111.1 5440 BHAMB 132.00* 5 54401 T1 11.000 5 1 42.5 40.0 106.3 5440 BHAMB 132.00* 5 54402 T2 11.000 5 1 41.2 40.0 103.0 5445 SARGODAC 132.00* 5 54451 T1 11.000 5 1 45.2 40.0 113.0 5445 SARGODAC 132.00* 5 54452 T2 11.000 5 1 45.1 40.0 112.6 5450 SGD2 132.00* 5 54502 T2 11.000 5 1 29.3 26.0 112.6 504760-01-A4 4317 M-3 7455 BHAKKAR 142 Disco Transmission Expansion Plan National Power System Expansion Plan 5480 H.FAQIRN 132.00* 5 5720 H.FAQIRN 66.000 5 1 109.1 32.0 341.1 7455 BHAKKAR 132.00 5 7456 CHOKAZAM 132.00* 6 1 117.3 112.0 104.7 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), many system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. Sr.No. KV Grid Station Rinforcement Required 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 66 66 66 66 66 G.M Raja Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Satiana RD (KhanAugmentation of 20/26 MVA with 31.5/40 MVA T/F. Kamlia Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Narwala Rd Augmentation of 20/26 MVA with 31.5/40 MVA T/F. T.T Sing Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Jhang City 11 KV 7.8 Mvar Capacitors Thikri Wala Augmentation 10/13 MVA T/F with 20/26 MVA Jhang RD Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Ahmad Pur Augmentation 10/13 MVA T/F with 20/26 MVA Bhowana Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Bhamb 132 KV 40 Mvar capcitors Bhamb Extension of 20/26 MVA T/F with 2.4 Mvar Capacitors Srg Second Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Kirana Hill Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Khurrian Wala Augmentation 10/13 MVA T/F with 20/26 MVA Millat RD Augmentation 10/13 MVA T/F with 20/26 MVA Chenab Nagar Augmentation 10/13 MVA T/F with 20/26 MVA Chiniot Ind. Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Chak Jhumra Augmentation of 20/26 MVA with 31.5/40 MVA T/F. Srg City Extension of 20/26 MVA T/F 4.8 mvar capcitors Usman‐i‐Ghani Augmentation 10/13 MVA T/F with 20/26 MVA New Jhang Rd New Grid Station to Share the load of 132 KV Jhang Rd. Bhakkar Conversion from 66 KV Bhakkart to 132 KV Bhakkart Behal Conversion from 66 KV Behal to 132 KV Behal Jehanian Shah Conversion from 66 KV Jehanian Shah to 132 KVJehanian Shah AdhiKot Conversion from 66 KV A dhaiKot to 132 KV A dhaiKot Chashma Conversion from 66 KV Chashmatto 132 KV Chashma With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. 504760-01-A4 143 Disco Transmission Expansion Plan National Power System Expansion Plan Out-of-Limits Bus Voltages: Some low voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 6 <-------- B U S --------> 4305 T-SCARP 132.00 0.86813 1.03628 1.10000 0.90000 SINGLE 6 4306 SCARP 132.00 0.86417 1.03343 1.10000 0.90000 SINGLE 6 4310 JRN.WALA 132.00 0.88794 1.00791 1.10000 0.90000 SINGLE 122 4492 JHANG-II 132.00 0.86478 1.01155 1.10000 0.90000 SINGLE 122 4500 KHEWA 132.00 0.88644 0.99973 1.10000 0.90000 SINGLE 199 5630 BARANA 132.00 0.89464 0.96159 1.10000 0.90000 SINGLE 204 5432 JAHANIAN SHA132.00 0.86622 0.99158 1.10000 0.90000 SINGLE 204 5440 BHAMB 132.00 0.80076 0.98022 1.10000 0.90000 SINGLE 204 5443 KOTSHAKR 132.00 0.79270 0.97613 1.10000 0.90000 SINGLE 204 5444 JAMALI BALOO132.00 0.78536 0.97217 1.10000 0.90000 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 6 : OPEN LINE FROM BUS 4305 [T-SCARP 132.00] TO BUS 4330 [NSHTBD-1 132.00] CKT 1 SINGLE 81 : OPEN LINE FROM BUS 4460 [SMNDRIRD 132.00] TO BUS 4462 [FSD CITY 132.00] CKT 1 SINGLE 95 : OPEN LINE FROM BUS 4470 [GOJRA 132.00] TO BUS 4479 [TTSING.N 132.00] CKT 1 SINGLE 96 : OPEN LINE FROM BUS 4470 [GOJRA 132.00] TO BUS 4479 [TTSING.N 132.00] CKT 2 SINGLE 122 : OPEN LINE FROM BUS 4490 [JHANG 132.00] TO BUS 4492 [JHANG-II 132.00] CKT 1 SINGLE 199 : OPEN LINE FROM BUS 5420 [LUDEWALA 132.00] TO BUS 5425 [KIRANAHL 132.00] CKT 1 SINGLE 204 : OPEN LINE FROM BUS 5420 [LUDEWALA 132.00] TO BUS 5440 [BHAMB 132.00] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: Some line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 4430*NAR.W.RD 132.00 4460 SMNDRIRD 132.00 1 SINGLE 81 112.0 116.7 104.7 4470 GOJRA 132.00 4479*TTSING.N 132.00 2 SINGLE 95 112.0 144.0 121.9 4470 GOJRA 132.00 4479*TTSING.N 132.00 1 SINGLE 96 112.0 144.0 121.9 5431 T-KOTLTH 132.00 5432*JAHANIAN SHA132.00 1 SINGLE 204 114.0 124.4 126.0 5440*BHAMB SINGLE 204 114.0 103.3 113.1 5432 JAHANIAN SHA132.00 132.00 1 % CONTINGENCY LEGEND: LABEL EVENTS SINGLE 6 : OPEN LINE FROM BUS 4305 [T-SCARP 132.00] TO BUS 4330 [NSHTBD-1 132.00] CKT 1 SINGLE 81 : OPEN LINE FROM BUS 4460 [SMNDRIRD 132.00] TO BUS 4462 [FSD CITY 132.00] CKT 1 SINGLE 95 : OPEN LINE FROM BUS 4470 [GOJRA 132.00] TO BUS 4479 [TTSING.N 132.00] CKT 1 504760-01-A4 144 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 96 : OPEN LINE FROM BUS 4470 [GOJRA 132.00] TO BUS 4479 [TTSING.N 132.00] CKT 2 SINGLE 122 : OPEN LINE FROM BUS 4490 [JHANG 132.00] TO BUS 4492 [JHANG-II 132.00] CKT 1 SINGLE 199 : OPEN LINE FROM BUS 5420 [LUDEWALA 132.00] TO BUS 5425 [KIRANAHL 132.00] CKT 1 SINGLE 204 : OPEN LINE FROM BUS 5420 [LUDEWALA 132.00] TO BUS 5440 [BHAMB 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, three system additions were considered as follows. Sr.No. Rinforcement Required 1 2 3 Re‐Conductring Double Cct from Lynx to Greely from 132 KV Ludewal ‐ Kudlathi ‐Jhanian shah‐ Bhamb. 24 Mvar Capacitors at 132 Kv J/wala Rd New single Circuit on Rail from UAE Gen.‐Nishatabad With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed FESCO base case for Year2020 with the above mentioned system reinforcements are shown in Appendix-6 (spread over 5 Sheets). 7.1.32 “MEPCO” Distribution System for Year-2020 The Year-2020 base case was studied based on the planning criteria described in Section 12.5. The total load of MEPCO by Year-2020 is 4,902 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.08 pu], some low voltage problems were recorded within the MEPCO system as given below. As mentioned in the MEPCO-2015 and 2016 analyses, the upper voltage limit for MEPCO system was set to 1.08 pu instead of 1.05 pu due to the radial nature of the system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0800: BUS# X-- NAME --X BASKV AREA 504760-01-A4 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA 145 V(PU) V(KV) Disco Transmission Expansion Plan National Power System Expansion Plan * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 6120 PAKPATAN 132.00 6 0.9422 124.37 6150 SH.FAZAL 132.00 6 0.9499 125.39 6162 BREWLA-O 132.00 6 0.9419 124.33 6164 132.00 6 0.9435 124.54 6191 HOTA 132.00 6 0.9487 125.23 6200 QABULA 132.00 6 0.9437 124.57 6210 SAHUKA 132.00 6 0.9250 122.10 6512 FAQIRWLI 132.00 6 0.9393 123.98 6513 T FAQ WALI 132.00 6 0.9401 124.09 6521 FORTABAS 132.00 6 0.9277 122.46 7010 KACHAKHU 132.00 6 0.9487 125.22 7055 T-C.211 132.00 6 0.9339 123.28 7060 CHAK.211 132.00 6 0.9303 122.80 7070 MAILSI 132.00 6 0.9275 122.43 7147 KARORPCA 132.00 6 0.9411 124.22 7149 DUNYAPUR _1132.00 6 0.9411 124.22 7185 KHANBELA 132.00 6 0.9444 124.66 7288 SHUJABAD 132.00 6 0.9314 122.95 7289 JALALPWL 132.00 6 0.9054 119.51 7290 MESCO 132.00 6 0.9445 124.68 7360 JATOIJNB 132.00 6 0.9447 124.70 7370 KHRPRSDT 132.00 6 0.9447 124.70 7784 H RAJKAN 132.00 6 0.9272 122.39 T.BREWALA -------------------------------------------------------------------------------- Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 500 MULTAN 220.00* 15 6666 MULTAN-N 132.00 6 1 604.6 500.0 120.9 520 PIRNGHAB 220.00* 15 7100 P.GAIB-1 132.00 6 1 550.1 254.0 216.6 520 PIRNGHAB 220.00* 15 7109 P.GAIB-2 132.00 6 2 164.2 160.0 102.6 540 KAPCO220 220.00 15 7300 KAPCO 132.00* 6 1 559.4 400.0 139.8 6150 SH.FAZAL 132.00* 6 61501 SH.FAZAL T-111.000 6 1 28.3 26.0 108.8 6150 SH.FAZAL 132.00* 6 61502 SH.FAZAL T-211.000 6 1 28.4 26.0 109.2 6175 LUDDEN 132.00* 6 61751 LUDDEN T-1 11.000 6 1 14.3 13.0 109.6 6200 QABULA 132.00* 6 62002 QABULA T-2 11.000 6 1 26.0 26.0 100.2 6210 SAHUKA 132.00* 6 62101 SAHUKA T-1 11.000 6 1 27.5 26.0 105.7 6220 HASILPUR 132.00* 6 62202 HASILPUR T-211.000 6 1 29.0 26.0 111.4 6220 HASILPUR 132.00* 6 62203 HASILPUR T-311.000 6 1 29.1 26.0 111.8 6230 CHISTIAN 132.00* 6 62301 CHISTIAN T-111.000 6 1 28.5 26.0 109.8 6230 CHISTIAN 132.00* 6 62302 CHISTIAN T-211.000 6 1 28.2 26.0 108.5 7006 HEAD SIDHNAI132.00* 6 70061 H SIDNAI T-111.000 6 1 15.0 13.0 115.8 7050 JEHANIAN 132.00* 6 70502 JEHANIAN T-211.000 6 1 50.7 40.0 126.7 7110 BASTIMLK 132.00* 6 71102 BASTIMLK T-211.000 6 1 41.0 40.0 102.5 7120 LODHRAN 132.00* 6 71202 LODHRAN T-2 11.000 6 1 26.4 26.0 101.7 7120 LODHRAN 132.00* 6 71203 LODHRAN T-3 11.000 6 1 26.4 26.0 101.7 7150 SAMASATA 132.00* 6 71501 SAMASATA T-111.000 6 1 13.8 13.0 106.2 7210 MWQRSHIA 132.00* 6 72101 MWQRSHIA T-111.000 6 1 31.0 26.0 119.3 504760-01-A4 146 Disco Transmission Expansion Plan National Power System Expansion Plan 7230 SADIQABD 132.00* 6 72303 SADIQABD T-311.000 6 1 27.1 26.0 104.0 7235 NAWAZABD 132.00* 6 72352 NAWAZAB T-2 11.000 6 1 27.5 26.0 105.9 7250 MN.KH.RD 132.00* 6 72501 MN.KH.RD T-111.000 6 1 26.2 26.0 100.8 7250 MN.KH.RD 132.00* 6 72503 MN.KH.RD T-311.000 6 1 28.0 26.0 107.6 7270 MLN-IND 132.00 6 6 1 114.6 112.0 102.3 7280 MN.VR.RD 132.00* 6 72802 MN.VR.RD T-211.000 6 1 40.5 40.0 101.2 7285 QASIMPUR 132.00* 6 72852 QASIMPUR T-211.000 6 1 26.9 26.0 103.3 7285 QASIMPUR 132.00* 6 72853 QASIMPUR T-311.000 6 1 28.3 26.0 108.7 7287 M.JAILRD 132.00* 6 72871 M.J RD T-1 11.000 6 1 27.7 26.0 106.6 7287 M.JAILRD 132.00* 6 72872 M.J.RD T-2 11.000 6 1 26.5 26.0 101.8 7288 SHUJABAD 132.00* 6 72881 SHUJABAD T-111.000 6 1 20.0 13.0 153.9 7289 JALALPWL 132.00* 6 72891 JALALPWL T-111.000 6 1 27.4 26.0 105.5 7289 JALALPWL 132.00* 6 72892 JALALPWL T-211.000 6 1 26.8 26.0 103.1 7290 MESCO 132.00* 6 72902 MESCO T-2 11.000 6 1 40.2 40.0 100.6 7328 KBGASHER 132.00* 6 73281 KBGASHER T-111.000 6 1 37.2 26.0 143.2 7590 SKHISRWR 132.00* 6 75901 SKHISRWR T-111.000 6 1 13.0 13.0 100.0 7925 CHOTI 132.00* 6 79251 CHOTI T-1 6 1 14.7 13.0 112.7 7290 MESCO 132.00* 11.000 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), some system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. Sub Station / Transformer 132 Kv H Sidnai T1 2020 Proposed MVA Augmentation 13 to 26 132 Kv Sakhi Sarwar T1 Augmentation 13 to 26 132 Kv Choti T1 Augmentation 13 to 26 132 Kv Noor Pur T2 Augmentation 13 to 26 132 Kv Sh. Fazal T1 Augmentation 26 to 40 132 Kv Qabula T1 Augmentation 26 to 40 132 Kv Sahuka T1 Augmentation 26 to 40 132 Kv Hasilpur T1 Augmentation 26 to 40 132 Kv Chistian T1 Augmentation 26 to 40 132 Kv Chistian T2 Augmentation 26 to 40 132 Kv Nawazabad T1 132 Kv Khanewal Road Augmentation 26 to 40 Augmentation 26 to 40 132 Kv Jail Road T1 Augmentation 26 to 40 132 Kv MESCO T2 Augmentation 40 to 60 132 Kv J. P. Wala Extension 26 Transmission Line Additions/Modification 132 Kv MESCO to 132 Kv Ind. State Lynex to Greely 504760-01-A4 147 KM 20 Km Disco Transmission Expansion Plan National Power System Expansion Plan No. Capacitors (11 kV) Substation 132 Kv J. P. Wala 132 Kv Fort Abbas 132 Kv Jehanian 132 Kv H Rajkan 1 2 3 4 Capacitors (132 kV) 4.8 MVAR - 2.4 MVAR - - 36 MVAR 4.2 MVAR - With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse was recorded. Out-of-Limits Bus Voltages: One voltage problem was recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 6 <-------- B U S --------> 6182 KAMIRWALA 132.00 0.87973 0.97465 1.10000 0.90000 SINGLE 85 7006 HEAD SIDHNAI132.00 0.79948 0.97259 1.10000 0.90000 SINGLE 85 7008 M VIRK 132.00 0.89763 0.98540 1.10000 0.90000 SINGLE 85 7010 KACHAKHU 132.00 0.86724 0.95877 1.10000 0.90000 SINGLE 85 7020 KHANEWAL 132.00 0.89763 0.98540 1.10000 0.90000 SINGLE 85 7025 J.MARYLA _1132.00 0.89779 0.98558 1.10000 0.90000 SINGLE 85 7030 KABIRWLA 132.00 0.79948 0.97259 1.10000 0.90000 SINGLE 85 7032 MP.PAHOR 132.00 0.80338 0.97733 1.10000 0.90000 SINGLE 90 7006 HEAD SIDHNAI132.00 0.83705 0.97758 1.10000 0.90000 SINGLE 90 7030 KABIRWLA 132.00 0.87404 1.00543 1.10000 0.90000 SINGLE 90 7032 MP.PAHOR 132.00 0.87180 1.00422 1.10000 0.90000 SINGLE 97 7289 JALALPWL 132.00 0.89213 0.97670 1.10000 0.90000 SINGLE 110 7130 BU.JADID 132.00 0.87850 1.00350 1.10000 0.90000 SINGLE 114 7170 AHMDPR.E 132.00 0.89107 1.00369 1.10000 0.90000 SINGLE 114 7180 FEROZA 132.00 0.83083 0.98139 1.10000 0.90000 SINGLE 114 7185 KHANBELA 132.00 0.82008 0.97368 1.10000 0.90000 SINGLE 114 7974 UCH.SHRF 132.00 0.86940 0.98830 1.10000 0.90000 SINGLE 114 7981 ALI PUR 132.00 0.85833 0.98086 1.10000 0.90000 SINGLE 115 7170 AHMDPR.E 132.00 0.89107 1.00369 1.10000 0.90000 SINGLE 115 7180 FEROZA 132.00 0.83083 0.98139 1.10000 0.90000 SINGLE 115 7185 KHANBELA 132.00 0.82008 0.97368 1.10000 0.90000 SINGLE 115 7974 UCH.SHRF 132.00 0.86940 0.98830 1.10000 0.90000 SINGLE 115 7981 ALI PUR 132.00 0.85833 0.98086 1.10000 0.90000 SINGLE 161 7360 JATOIJNB 132.00 0.89583 0.95422 1.10000 0.90000 504760-01-A4 148 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 161 7370 KHRPRSDT 132.00 0.89583 0.95422 1.10000 0.90000 SINGLE 208 7462 MDC-DGK 132.00 0.87824 1.01013 1.10000 0.90000 SINGLE 210 7463 CPC-DGK 132.00 0.87906 1.00971 1.10000 0.90000 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 6 : OPEN LINE FROM BUS 6070 [YOUSFWLA 132.00] TO BUS 6182 [KAMIRWALA 132.00] CKT 1 SINGLE 85 : OPEN LINE FROM BUS 7030 [KABIRWLA 132.00] TO BUS 7109 [P.GAIB-2 132.00] CKT 1 SINGLE 90 : OPEN LINE FROM BUS 7030 [KABIRWLA 132.00] TO BUS 7109 [P.GAIB-2 132.00] CKT 2 SINGLE 97 : OPEN LINE FROM BUS 7100 [P.GAIB-1 132.00] TO BUS 7125 [LAR 132.00] CKT 1 SINGLE 110 : OPEN LINE FROM BUS 7130 [BU.JADID 132.00] TO BUS 7140 [BHAWALPR 132.00] CKT 1 SINGLE 114 : OPEN LINE FROM BUS 7139 [B.W.P-N 132.00] TO BUS 7170 [AHMDPR.E 132.00] CKT 1 SINGLE 115 : OPEN LINE FROM BUS 7139 [B.W.P-N 132.00] TO BUS 7170 [AHMDPR.E 132.00] CKT 2 SINGLE 161 : OPEN LINE FROM BUS 7300 [KAPCO 132.00] TO BUS 7330 [MZFRGARH 132.00] CKT 1 SINGLE 208 : OPEN LINE FROM BUS 7462 [MDC-DGK 132.00] TO BUS 7909 [D.G.KHAN II 132.00] CKT 1 SINGLE 210 : OPEN LINE FROM BUS 7463 [CPC-DGK 132.00] TO BUS 7909 [D.G.KHAN II 132.00] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: Two marginal line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES AND INTERFACES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 6070 YOUSFWLA 132.00 6182*KAMIRWALA 132.00 1 SINGLE 5 112.0 110.2 105.4 % 6070 YOUSFWLA 132.00 6180*ARIFWALA 132.00 2 SINGLE 6 112.0 110.6 109.1 6169 VEHARI-N 132.00 6170*VEHARI-O 132.00 4 SINGLE 34 112.0 121.3 107.8 6169 VEHARI-N 132.00 6170*VEHARI-O 132.00 3 SINGLE 35 112.0 121.3 107.8 6419 L.SOHANRA 132.00 7147*KARORPCA 132.00 2 SINGLE 64 112.0 112.0 106.4 6419 L.SOHANRA 132.00 7147*KARORPCA 132.00 1 SINGLE 65 112.0 112.0 106.4 6666 MULTAN-N 132.00 7250*MN.KH.RD 132.00 1 SINGLE 69 404.0 411.9 100.3 7050 JEHANIAN 132.00 7075*MUKHDM.R 132.00 1 SINGLE 96 112.0 122.9 109.8 7139 B.W.P-N 132.00 7145*BPUR CANTT 132.00 2 SINGLE 116 202.0 220.2 107.0 7139 B.W.P-N 132.00 7145*BPUR CANTT 132.00 1 SINGLE 117 202.0 220.2 107.0 7140*BHAWALPR 132.00 7145 BPUR CANTT 132.00 2 SINGLE 118 184.0 196.0 105.2 7140*BHAWALPR 132.00 7145 BPUR CANTT 132.00 1 SINGLE 119 184.0 196.0 105.2 7250 MN.KH.RD 132.00 7260*MN.BS.RD 132.00 1 SINGLE 141 112.0 116.1 105.1 7250 MN.KH.RD 132.00 7260*MN.BS.RD 132.00 2 SINGLE 141 112.0 116.1 105.1 7321 T-GUJRAT 132.00 7330*MZFRGARH 132.00 1 SINGLE 161 112.0 111.1 103.9 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 5 : OPEN LINE FROM BUS 6070 [YOUSFWLA 132.00] TO BUS 6180 [ARIFWALA 132.00] CKT 2 SINGLE 6 : OPEN LINE FROM BUS 6070 [YOUSFWLA 132.00] TO BUS 6182 [KAMIRWALA 132.00] CKT 1 SINGLE 34 : OPEN LINE FROM BUS 6169 [VEHARI-N 132.00] TO BUS 6170 [VEHARI-O 132.00] CKT 3 SINGLE 35 : OPEN LINE FROM BUS 6169 [VEHARI-N 132.00] TO BUS 6170 [VEHARI-O 132.00] CKT 4 SINGLE 64 : OPEN LINE FROM BUS 6419 [L.SOHANRA 132.00] TO BUS 7147 [KARORPCA 132.00] CKT 1 SINGLE 65 : OPEN LINE FROM BUS 6419 [L.SOHANRA 132.00] TO BUS 7147 [KARORPCA 132.00] CKT 2 SINGLE 69 : OPEN LINE FROM BUS 6666 [MULTAN-N 132.00] TO BUS 7250 [MN.KH.RD 132.00] CKT 2 504760-01-A4 149 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 96 : OPEN LINE FROM BUS 7050 [JEHANIAN 132.00] TO BUS 7100 [P.GAIB-1 132.00] CKT 2 SINGLE 116 : OPEN LINE FROM BUS 7139 [B.W.P-N 132.00] TO BUS 7145 [BPUR CANTT 132.00] CKT 1 SINGLE 117 : OPEN LINE FROM BUS 7139 [B.W.P-N 132.00] TO BUS 7145 [BPUR CANTT 132.00] CKT 2 SINGLE 118 : OPEN LINE FROM BUS 7140 [BHAWALPR 132.00] TO BUS 7145 [BPUR CANTT 132.00] CKT 1 SINGLE 119 : OPEN LINE FROM BUS 7140 [BHAWALPR 132.00] TO BUS 7145 [BPUR CANTT 132.00] CKT 2 SINGLE 141 : OPEN LINE FROM BUS 7250 [MN.KH.RD 132.00] TO BUS 7255 [WAPDATWN 132.00] CKT 1 SINGLE 161 : OPEN LINE FROM BUS 7300 [KAPCO 132.00] TO BUS 7330 [MZFRGARH 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. No. Transmission Line Additions/Modification KM 1 Yousafwala to Kamirwala Lynx to Greelay 51 2 Yousafwala to Arifwala Lynx to Greelay 41 3 Multan New to Kh. Road Rail (New Line) 1.7 4 Bahawalpur to B Pur Cantt Greelay to Rail 6 5 Muzafarghar to T‐Gujrat Lynx to Greelay 28 6 Bahawalpur New to A P East Rail (3rd Circuit) 50 7 Kabirwala to P Gaib‐2 Lynx to Greelay 36 No. Substation Capacitors 1 132 kv Capacitor Khanewal 48 MVAR 2 132 kv Capacitor Kabirwala 48 MVAR 3 132 kv Capacitor J P Wala 48 MVAR With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed MEPCO base case for Year2020 with the above mentioned system reinforcements are given in Appendix-6 (spread over 8 Sheets). 7.1.33 “HESCO & SEPCO” Distribution System for Year-2020 The Year-2020 base case was studied based on the planning criteria described in Section 12.5. The total load of HESCO and SEPCO by Year-2020 is 3,596 MW. 504760-01-A4 150 Disco Transmission Expansion Plan National Power System Expansion Plan Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.08 pu], a few low voltage problems were recorded within the HESCO and SEPCO systems as given below. As mentioned in the HESCO and SEPCO 2016 and 2018 analyses, the upper voltage limit for was set to 1.08 pu instead of 1.05 pu due to the coverage and radial nature of the system. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0800: BUS# X-- NAME --X BASKV AREA 95161 1 11.000 V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 7 1.0874 11.962 BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) 8110 KOT DIJI 132.00 7 0.9445 124.68 8120 PIRJOGOTH 132.00 7 0.9428 124.45 8125 KUNB 132.00 7 0.9411 124.22 8135 CHONDKO 132.00 7 0.9389 123.93 8310 NARA C-1 66.000 7 0.5168 34.111 8320 NARA C-2 66.000 7 0.4431 29.245 8342 THARI MIR WA132.00 7 0.9449 124.72 80802 2 11.000 7 0.9376 10.314 80901 1 11.000 7 0.9242 10.166 80902 2 11.000 7 0.9430 10.373 81001 1 11.000 7 0.9083 9.992 81002 2 11.000 7 0.9098 10.008 81003 3 11.000 7 0.9043 9.947 81101 1 11.000 7 0.9080 81201 1 11.000 7 0.9080 9.988 81202 2 11.000 7 0.9237 10.161 81251 1 11.000 7 0.9072 9.979 81303 3 11.000 7 0.9145 10.060 81351 1 11.000 7 0.9168 10.085 81411 1 11.000 7 0.9276 10.204 81412 2 11.000 7 0.9155 10.070 81901 1 11.000 7 0.9215 10.137 81902 2 11.000 7 0.9215 10.137 82221 1 11.000 7 0.9445 10.390 82251 1 11.000 7 0.9268 10.195 82301 1 11.000 7 0.9352 10.287 82302 2 11.000 7 0.9285 10.214 82311 1 11.000 7 0.9364 10.301 82312 2 11.000 7 0.9480 10.428 82313 3 11.000 7 0.9194 10.114 82371 1 11.000 7 0.9164 10.080 82372 2 11.000 7 0.9213 10.135 82373 3 11.000 7 0.9291 10.220 82401 1 11.000 7 0.9431 10.374 82402 2 11.000 7 0.9381 10.319 82451 1 11.000 7 0.9280 10.208 82452 2 11.000 7 0.9280 10.208 82511 1 11.000 7 0.9425 10.368 82521 1 11.000 7 0.9482 10.430 83101 1 11.000 7 0.4600 5.060 83102 2 11.000 7 0.4837 5.321 83201 1 11.000 7 0.4257 4.683 83202 2 11.000 7 0.4327 4.760 83421 1 11.000 7 0.9261 10.188 83422 2 11.000 7 0.9261 10.188 84592 2 11.000 7 0.9496 10.445 9.988 -------------------------------------------------------------------------------- Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. 504760-01-A4 151 Disco Transmission Expansion Plan National Power System Expansion Plan -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV 700 DADU AREA 220.00* 15 8050 K.P.MEHR 132.00* 7 8080 PANUAKIL 132.00* 8080 PANUAKIL BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 132.00 7 1 562.0 480.0 117.1 80501 1 11.000 7 1 27.1 26.0 104.4 7 80801 1 11.000 7 1 28.4 26.0 109.0 132.00* 7 80802 2 11.000 7 1 27.0 26.0 103.7 8090 ROHRI 132.00* 7 66.000 7 1 45.6 37.5 121.7 8090 ROHRI 132.00* 7 80901 1 11.000 7 1 26.7 26.0 102.8 8140 KANDIARO 132.00* 7 81403 3 11.000 7 1 26.7 26.0 102.6 8141 MAHRABPR 132.00* 7 81412 2 11.000 7 1 13.1 13.0 100.5 8150 N.FEROZE 132.00* 7 81503 3 11.000 7 1 26.3 26.0 101.3 8190 KANDH KOT 132.00* 7 81901 1 11.000 7 1 28.3 26.0 108.8 8190 KANDH KOT 132.00* 7 81902 2 11.000 7 1 28.3 26.0 108.8 8205 JACOBABAD 132.00* 7 82051 1 11.000 7 1 28.9 26.0 111.3 8205 JACOBABAD 132.00* 7 82052 2 11.000 7 1 29.6 26.0 113.7 8225 LAKHI 132.00* 7 82251 1 11.000 7 1 14.1 13.0 108.2 8237 SUKURSTE 132.00* 7 82373 3 11.000 7 1 26.2 26.0 100.9 8240 RATODERO 132.00* 7 82401 1 11.000 7 1 27.0 26.0 103.7 8240 RATODERO 132.00* 7 82402 2 11.000 7 1 14.2 13.0 109.4 8241 MIROKHAN 132.00* 7 82411 1 11.000 7 1 14.3 13.0 110.0 8250 LARKANA-2 132.00* 7 82501 1 11.000 7 1 44.8 40.0 112.0 8250 LARKANA-2 132.00* 7 82502 2 11.000 7 1 45.9 40.0 114.7 8280 DADU OLD 132.00* 7 82801 1 11.000 7 1 41.9 40.0 104.7 8341 RASULABD 132.00* 7 83411 1 11.000 7 1 14.4 13.0 111.0 8341 RASULABD 132.00* 7 83412 2 11.000 7 1 14.4 13.0 111.0 9002 DAULTPUR 132.00* 7 90022 2 11.000 7 1 13.1 13.0 100.8 9040 SANGHAR 132.00* 7 90401 1 11.000 7 1 26.8 26.0 103.2 9090 HALAROAD 132.00* 7 90901 1 11.000 7 1 40.3 40.0 100.8 9090 HALAROAD 132.00* 7 90903 3 11.000 7 1 28.7 26.0 110.6 9100 TANDOJAM 132.00* 7 91001 1 11.000 7 1 15.2 13.0 117.0 9100 TANDOJAM 132.00* 7 91002 2 11.000 7 1 15.2 13.0 117.0 9130 MIRPURKHAS-1132.00* 7 66.000 7 1 17.2 16.0 107.2 9150 PHULLELI 132.00* 7 91503 3 11.000 7 1 44.7 40.0 111.8 9160 HYDNTPS 132.00* 7 91601 1 11.000 7 1 42.7 40.0 106.8 9160 HYDNTPS 132.00* 7 91602 2 11.000 7 1 40.7 40.0 101.8 9180 LATIFABAD 132.00* 7 91801 1 11.000 7 1 42.0 40.0 105.1 9180 LATIFABAD 132.00* 7 91802 2 11.000 7 1 42.0 40.0 105.1 9180 LATIFABAD 132.00* 7 91803 3 11.000 7 1 46.1 40.0 115.2 9190 KOTRI SITE 132.00* 7 91901 1 11.000 7 1 28.0 26.0 107.8 9220 T.M.KHAN 132.00* 7 92201 1 11.000 7 1 27.6 26.0 106.0 9290 SUJAWAL 132.00* 7 92901 1 11.000 7 1 14.2 13.0 109.5 9290 SUJAWAL 132.00* 7 92902 2 11.000 7 1 14.1 13.0 108.4 9300 LADIUN 132.00* 7 93001 1 11.000 7 1 6.6 6.3 105.3 9410 QASIMABAD-I 132.00* 7 94103 3 11.000 7 1 42.2 40.0 105.5 9410 QASIMABAD-I 132.00* 7 94104 4 11.000 7 1 42.2 40.0 105.5 9415 QASIMABAD-II132.00* 7 94151 1 11.000 7 1 32.1 26.0 123.3 9415 QASIMABAD-II132.00* 7 94152 2 11.000 7 1 32.1 26.0 123.3 9430 GULSHN SHBZ 132.00* 7 94302 2 11.000 7 1 14.1 13.0 108.1 9471 MATLI NEW 132.00* 7 94711 1 11.000 7 1 13.4 13.0 103.1 9526 DIPLO 66.000* 7 95261 1 11.000 7 1 2.7 2.5 109.3 504760-01-A4 8170 DADU NEW 8300 ROHRI 9542 MIRPURKH 152 Disco Transmission Expansion Plan National Power System Expansion Plan 9536 JAMRAOHD 66.000* 7 95361 1 11.000 7 1 5.4 5.0 108.2 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), some system reinforcements were added as system expansions and to solve the (N-0) violations, as follows. Under HESCO: 1. Augmentation of T-2 Power Transformer from 13 to 20/26 MVA at 132KV Grid Station Sanghar (9040). 2. Add 2.4 MVAR at T-3 of 220/132KV Grid Station Hala Road (9090). 3. Augmentation of T-1 Power Transformer from 13 to 20/26 MVA at 132KV Grid Station Tando Jam (9100). 4. Augmentation of 132/66KV Power Transformer from 16 to 37.5 MVA Power Transformer at 132KV Grid Station MirpurKhas-1 (9130), this Transformer will be turned spare from 132KV Grid Station Larkana-2. 5. Augmentation of T-1 Power Transformer from 26 to 40 MVA at 132KV Grid Station Phuelleli (9150). 6. Addition of 3rd 40 MVA Power Transformer at 132KV Grid Station NTPS (9160). 7. Shifting of 12 MW Load (05 MW at 132KV Grid Stations Ghanghra Mori 9095 & 07 MW at NTPS, 9160) + addition of 1.2 MVAR capacitor bank at Latifabad Grid Station, 9180). 8. Augmentation of T-2 Power Transformer from 13 to 26 MVA at 132KV Grid Station Kotri Site (9190). 9. Augmentation of T-2 Power Transformer from 13 to 26 MVA at 132KV Grid Station T.M Khan (9220). 10. Augmentation of both Power Transformers from 13 to 26 MVA at 132KV Sujawal Grid Station (9290). 504760-01-A4 153 Disco Transmission Expansion Plan National Power System Expansion Plan 11. Augmentation of T-1 6.3 MVA Power Transformer with 10/13 at 132KV Grid Station Ladiun (9300). 12. 10 MW load shifted from 132KV Grid Station Qasimabad (9410) to 132KV Grid Station Hill Top (9411). 13. Addition of 3rd 40 MVA Power Transformer at 132KV Grid Station Qasimabad-II (9415). 14. Augmentation of T-1 13 MVA Power Transformer with 20/26 at 132KV Grid Station Gulishan-e-Shahbaz (9430). 15. Addition of 2.4 MVAR capacitor Bank at T-1 of 132KV Grid Station Matli New (9471). 16. Augmentation of T-1 2.5 MVA Power Transformer with 5 MVA at 66Kv Grid Station Diplo (9526), this Transformer will be turned spare from 66KV Grid Station Jamaro Head (9536). 17. Augmentation of T-1 5 MVA Power Transformer with 10/13 MVA at 66KV Grid Station Jamaro Head (9536). Under SEPCO: 1. Conversion of 66KV Grid Station Nara-2, into 132KV voltage level with 1x10/13 MVA Power Transformer (8320 to 8321). 2. Addition of Second 20/26 MVA Power Transformer at 132KV Grid Station K.P Meher (8050). 3. Addition of 3rd 40 MVA Power Transformer at 132KV Grid Station Pano Akil (8080). 4. Increase capacitor from 1.2 MVAR to 2.4 MVAR at T-1 of 132KV Grid Station Rohri (8090). 5. Add 2.4 MVAR capacitor bank at T-3 of 132KV Grid Station Kandario (8140). 504760-01-A4 154 Disco Transmission Expansion Plan National Power System Expansion Plan 6. Add 3.6 MVAR capacitor bank at T-3 of 132KV Grid Station Naushro Feroze (8150). 7. Addition of 3rd 40 MVA Power Transformer at 132KV Grid Station Kandh Kot (8190). 8. Addition of 3rd 20/26 MVA Power Transformer at 132KV Grid Station JacobabadI (8205). 9. Add 2.4 MVAR capacitor bank at T-1 of 132KV Grid Station Lakhi (8225). 10. Add 2.4 MVAR capacitor bank at T-3 of 132KV Grid Station Sukkur Site (8237). 11. Augmentation of T-2 Power Transformer from 10/13 MVA to 20/26 MVA at 132KV Grid Station Ratodero (8240). 12. Addition of Second 10/13 MVA Power Transformer at 132KV Grid Station Miro khan (8241). 13. Addition of 3rd 40 MVA Power Transformer at 132KV Grid Station Larkana-2 (8250). 14. Addition of 3rd 40 MVA Power Transformer at 132KV Grid Station Dadu Old (8280). 15. Augmentation of T-1 Power Transformer from 10/13 MVA to 20/26 MVA at 132KV Grid Station Rasoolabad (8341). 16. Add 2.4 MVAR capacitor bank at T-2 of 132KV Grid Station Doultpur (9002). 17. Addition of 12 MVAR capacitor bank at 66KV Nara-I Grid Station (8310). This has already been proposed in year, 2015. 18. Add 3.00 MVAR capacitor bank at T-2 of 132KV Grid Station Mahrabpur. 19. Add 3.6 MVAR at T-1 of 132KV Grid Station Nara-2. 20. Increase Capacitor from 1.8 to 3.6 MVAR at Chondko Grid Station. 21. Add 2.4 MVAR at T-1 of 132KV Grid Station Kunb. 22. Increase capacitor from 2.4 to 4.8 MVAR at T-2 of 132KV Grid Station Khairpur. 504760-01-A4 155 Disco Transmission Expansion Plan National Power System Expansion Plan 23. Increase capacitor from 1.2 to 3 MVAR at T-1 of 132KV Grid Station Mahrabpur. 24. Increase capacitor from 2.4 to 6 MVAR at T-1 of 132KV Grid Station Khairpur. 25. Increase capacitor from 1.2 to 7.2 MVAR at T-2 of 132KV Grid Station Khairpur. 26. Add 9.0 MVRA capacitor at 132VK Grid Station at T-3 of 132KV Khairpur Grid Station. 27. Increase capacitor from 4.8 to 9.0 MVAR at T-1 of 132Kv Grid Station Pir Jo Goth. 28. Increase capacitor from 2.4 to 9.0 MVAR at T-1 of 132Kv Grid Station Sukkur Site. 29. Increase capacitor from 1.2 to 3.6 at 1t T-1 of 132KV Grid Station Karampur. With the above additions, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: No severe line outages would lead to area collapse were recorded. Out-of-Limits Bus Voltages: Some voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 77 <-------- B U S --------> 8210 KARAMPUR 132.00 0.88918 1.01899 1.10000 0.90000 SINGLE 109 8251 QAMBER 132.00 0.87821 0.98301 1.10000 0.90000 SINGLE 109 8252 WARAH 132.00 0.86155 0.97014 1.10000 0.90000 SINGLE 136 9020 N.S.SNGR 132.00 0.89192 0.98772 1.10000 0.90000 SINGLE 136 9025 JAM SAHIB 132.00 0.88821 0.98449 1.10000 0.90000 SINGLE 187 9494 SAMARO 66.000 0.88115 1.03775 1.10000 0.90000 SINGLE 187 9506 PITHORO 66.000 0.86492 1.02458 1.10000 0.90000 SINGLE 187 9595 KUNRI 66.000 0.89046 1.02516 1.10000 0.90000 SINGLE 273 9515 T-KALOI 66.000 0.85451 1.04389 1.10000 0.90000 SINGLE 273 9516 KALOI 66.000 0.84117 1.03818 1.10000 0.90000 SINGLE 273 9518 PANGIRO 66.000 0.85929 1.04351 1.10000 0.90000 504760-01-A4 156 Disco Transmission Expansion Plan National Power System Expansion Plan CONTINGENCY LEGEND: LABEL EVENTS SINGLE 77 : OPEN LINE FROM BUS 8210 [KARAMPUR 132.00] TO BUS 8220 [SHIKARPR 132.00] CKT 1 SINGLE 109 : OPEN LINE FROM BUS 8251 [QAMBER 132.00] TO BUS 8256 [LARKANA-3 132.00] CKT 1 SINGLE 136 : OPEN LINE FROM BUS 9010 [NAWABSHAH 132.00] TO BUS 9020 [N.S.SNGR 132.00] CKT 1 SINGLE 187 : OPEN LINE FROM BUS 9140 [SAMARO 132.00] TO BUS 9494 [SAMARO 66.000] CKT 1 SINGLE 273 : OPEN LINE FROM BUS 9514 [NOUKOT 66.000] TO BUS 9515 [T-KALOI 66.000] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: A few line overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 8000 GUDDU-1 132.00 8185*KASHMORE 132.00 2 SINGLE 2 112.0 130.2 111.8 % 8000 GUDDU-1 132.00 8185*KASHMORE 132.00 1 SINGLE 3 112.0 130.1 111.7 8029 LIBERTY 132.00 8040*MIRPUR M 132.00 1 SINGLE 9 112.0 129.2 113.3 8089 ROHRI-NW 132.00 8095*SHAH LUDHANI132.00 1 SINGLE 21 112.0 113.9 104.1 8241 MIROKHAN 132.00 8485*SHADADKT 132.00 1 SINGLE 109 112.0 107.8 103.6 9090 HALAROAD 132.00 9150*PHULLELI 132.00 1 SINGLE 170 112.0 133.7 114.6 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 2 : OPEN LINE FROM BUS 8000 [GUDDU-1 132.00] TO BUS 8185 [KASHMORE 132.00] CKT 1 SINGLE 3 : OPEN LINE FROM BUS 8000 [GUDDU-1 132.00] TO BUS 8185 [KASHMORE 132.00] CKT 2 SINGLE 9 : OPEN LINE FROM BUS 8029 [LIBERTY 132.00] TO BUS 8040 [MIRPUR M 132.00] CKT 2 SINGLE 21 : OPEN LINE FROM BUS 8089 [ROHRI-NW 132.00] TO BUS 8100 [KHAIRPUR 132.00] CKT 2 SINGLE 109 : OPEN LINE FROM BUS 8251 [QAMBER 132.00] TO BUS 8256 [LARKANA-3 132.00] CKT 1 SINGLE 170 : OPEN LINE FROM BUS 9095 [GHANGHRA MOR132.00] TO BUS 9159 [HYD-TMRD 132.00] CKT 1 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. Under HESCO: 1. Second circuit from 220/132KV Grid Station New Hala (9090) to 132KV Grid Station Phuelleli (9150). 2. Install 12 MVAR capacitor bank at 132Kv Grid Station N.S Sanghar Road (9020), Grid Station side. 504760-01-A4 157 Disco Transmission Expansion Plan National Power System Expansion Plan 3. Install second 132/66KV Power Transformer (40MVA) at Samaro Grid Station (9140), this Transformer will be turned spared from 132KV Grid Station Larkana2. 4. Install 20.22 MVAR (equal to 24 MVAR) capacitor Bank, at 132KV Grid Station Tando Ghulam Ali (9475), Grid Station side. 5. Install 6.00 MVAR switched shunt at T-1 of 66KV Grid Station Kaloi (9516). 6. Install 3.60 MVAR switched shunt at T-1 of 66KV Grid Station Pangrio (9518). Under SEPCO: 1. Second Circuit stringing from Liberty Power House (8029) to 132KV Grid Station Mirpur Mathelo (8040). 2. Reconductroing of both circuits from 132KV Grid Station New Rohri (8089) to 132KV Grid Station Rohri (8090) with Greeley Conductor. 3. Construction of 3rd 132KV SDT Transmission Line from Guddu (8000) to Kashmore Grid Station with Greeley Conductor. 4. Construction of Second 132KV SDT Transmission Line from Miro Khan to Shadadkot Grid Station with Greeley Conductor. 5. Increase capacitor from 6.0 to 7.0 MVAR at 132KV Grid Station Warah. 6. Add Capacitor 4.8 at T-1 of 132KV Grid Station Qambar. With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. The updated load flow single line diagrams for developed HESCO and SEPCO base case for Year-2020 with the above mentioned system reinforcements are given in Appendix-6 (spread over 12 Sheets). 504760-01-A4 158 Disco Transmission Expansion Plan National Power System Expansion Plan 7.1.34 “QESCO” Distribution System for Year-2020 The Year-2020 base case was studied based on the planning criteria described in Section 12.5. The total load of QESCO by Year-2020 is 2,246 MW. Summary for (N-0) Results Out-of-Limits Bus Voltages: As per the system voltage criteria [0.95-1.05 pu], some low voltage problems were recorded within the QESCO system as given below. -------------------------------------------------------------------------------- BUSES WITH VOLTAGE GREATER THAN 1.0500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA V(PU) V(KV) V(PU) V(KV) * NONE * BUSES WITH VOLTAGE LESS THAN 0.9500: BUS# X-- NAME --X BASKV AREA V(PU) V(KV) BUS# X-- NAME --X BASKV AREA 9720 GULISTAN 132.00 8 0.9492 125.29 9725 HABIBZAI 132.00 8 0.9470 125.01 9730 Q.ABDULA 132.00 8 0.9492 125.30 9735 CHAMAN 132.00 8 0.9282 122.53 9770 ZHOB 132.00 8 0.9498 125.37 9810 NOSHKI 132.00 8 0.9485 125.20 9813 MAL 132.00 8 0.9396 124.03 80040 PANJGUR 132.00 8 0.9157 120.87 80041 T-1 11.000 8 0.9235 10.159 97351 11.000 8 0.9414 10.355 98101 11.000 8 0.9370 10.307 98131 T-1 11.000 8 0.9217 10.138 -------------------------------------------------------------------------------- Line/Transformer Overloads: Many overloading problems were recorded based on 100% of rating A. -------------------------------------------------------------------------------- SUBSYSTEM LOADING CHECK (INCLUDED: LINES; BREAKERS AND SWITCHES; TRANSFORMERS) (EXCLUDED: NONE) LOADINGS ABOVE 100.0 % OF RATING SET A X--------- FROM BUS ----------X X---------- TO BUS -----------X BUS# X-- NAME --X BASKV AREA BUS# X-- NAME --X BASKV AREA CKT LOADING RATING PERCENT 645 MASTUNG 220.00* 15 9780 MASTUNG 132.00 8 1 464.3 320.0 145.1 970 QUETTA 220.00* 15 9660 QUETTAIN 132.00 8 1 863.8 480.0 180.0 8510 USTAMOHD 132.00* 8 85102 11.000 8 1 27.3 26.0 105.0 9630 LORALAI 132.00* 8 96301 11.000 8 1 42.2 40.0 105.6 504760-01-A4 159 Disco Transmission Expansion Plan National Power System Expansion Plan 9630 LORALAI 132.00* 8 96302 11.000 8 1 44.5 40.0 111.1 9690 MARIABAD 132.00* 8 96902 11.000 8 1 26.9 26.0 103.3 9712 KUCLAK 132.00* 8 97121 11.000 8 1 41.6 40.0 103.9 9735 CHAMAN 132.00* 8 97351 11.000 8 1 15.2 13.0 117.0 9781 K-KOCHA 132.00* 8 97811 11.000 8 1 26.6 26.0 102.1 9800 KIRDGHEB 132.00* 8 98001 11.000 8 1 13.9 13.0 107.1 9830 KALAT 132.00* 8 98303 T-3 11.000 8 1 28.8 26.0 110.8 -------------------------------------------------------------------------------- Before performing the contingency analysis (N-1), one line was added to solve the (N-0) violations, as follows. New Grid Stations: 1. 132 KV Pasandzai with allied T/L 2. 132 KV Musa Khail with allied T/L 3. 132 KV Jiwa with allied T/L 4. 132 KV Mashkey with allied T/L 5. 132 KV Awaran with allied T/L 6. 132 KV Jiwani with allied T/L 7. 132 KV Buleda with allied T/L Augmentation/Extension of Power Transformers: 1. 13 with 26 MVA at Usta Muhammad 2. 13 with 26 MVA at Khad Kucha 3. 26 with 40 MVA at Kalat 4. 13 with 26 MVA at Kirdgab 5. 26 with 40 MVA at Mariabad 6. 13 with 26 MVA at Chaman 7. Additional 26 MVA at Loralai 8. Additional 26 MVA at Kuchlak 504760-01-A4 160 Disco Transmission Expansion Plan National Power System Expansion Plan Installation of Fixed Shunts: 1. New Fixed Shunt of 4.8 MVAR at T-1 at Bhag G/S 2. Addition of 4.8 MVAR Fixed Shunt on 132 KV side at Hoshab G/S 3. New Fixed Shunt of 7.2 MVAR at T-1 at PCSIR Hazarganji G/S 4. New Fixed Shunt of 7.2 MVAR at T-1 at Nosar G/S 5. Addition of 0.8 MVAR Fixed Shunt on T-1 at Zhob G/S 6. New 132 KV Fixed Shunt of 12 MVAR at Chaman G/S With the above line addition, no voltage or line overloading problems were recorded under (N-0) conditions. Summary for (N-1) Results Severe Outage Cases: Four severe line outages would lead to area collapse were recorded. -------------------------------------------------------------------------------- CONTINGENCY LEGEND: LABEL EVENTS SINGLE 33 : OPEN LINE FROM BUS 9660 [QUETTAIN 132.00] TO BUS 9663 [PCSIR H.GANJ132.00] CKT 1 SINGLE 39 : OPEN LINE FROM BUS 9660 [QUETTAIN 132.00] TO BUS 9700 [Q.S.MAND 132.00] CKT 1 SINGLE 59 : OPEN LINE FROM BUS 9710 [PISHIN 132.00] TO BUS 9720 [GULISTAN 132.00] CKT 1 SINGLE 86 : OPEN LINE FROM BUS 9780 [MASTUNG 132.00] TO BUS 9820 [MANGOCHR 132.00] CKT 1 -------------------------------------------------------------------------------- Out-of-Limits Bus Voltages: A few low voltage problems were recorded (outside: 0.90 – 1.10 pu). -------------------------------------------------------------------------------- MONITORED VOLTAGE REPORT: CONTINGENCY V-CONT V-INIT V-MAX V-MIN SINGLE 27 <-------- B U S --------> 9765 MUSAFRPR 132.00 0.89779 0.96859 1.10000 0.90000 SINGLE 27 9770 ZHOB 132.00 0.88054 0.95525 1.10000 0.90000 SINGLE 28 9765 MUSAFRPR 132.00 0.89779 0.96859 1.10000 0.90000 SINGLE 28 9770 ZHOB 132.00 0.88054 0.95525 1.10000 0.90000 SINGLE 40 9735 CHAMAN 132.00 0.89985 0.95125 1.10000 0.90000 SINGLE 73 9750 MUS.BAGH 132.00 0.88999 0.97038 1.10000 0.90000 504760-01-A4 161 Disco Transmission Expansion Plan National Power System Expansion Plan SINGLE 73 9755 K. MATHERZAI132.00 0.88602 0.98257 1.10000 0.90000 SINGLE 95 9813 MAL 132.00 0.68667 0.95883 1.10000 0.90000 SINGLE 95 9855 KHARAN 132.00 0.79092 0.97960 1.10000 0.90000 SINGLE 95 9857 DLBINDIN 132.00 0.84559 0.99002 1.10000 0.90000 SINGLE 95 9858 CHAGAI 132.00 0.84516 0.99033 1.10000 0.90000 SINGLE 95 9859 BASIMA 132.00 0.87729 0.99523 1.10000 0.90000 SINGLE 111 9810 NOSHKI 132.00 0.88653 0.96684 1.10000 0.90000 SINGLE 111 9813 MAL 132.00 0.85027 0.95883 1.10000 0.90000 SINGLE 111 9855 KHARAN 132.00 0.81681 0.97960 1.10000 0.90000 SINGLE 111 9857 DLBINDIN 132.00 0.84952 0.99002 1.10000 0.90000 SINGLE 111 9858 CHAGAI 132.00 0.84912 0.99033 1.10000 0.90000 SINGLE 111 9859 BASIMA 132.00 0.81460 0.99523 1.10000 0.90000 SINGLE 113 9810 NOSHKI 132.00 0.88530 0.96684 1.10000 0.90000 SINGLE 113 9813 MAL 132.00 0.84822 0.95883 1.10000 0.90000 SINGLE 113 9855 KHARAN 132.00 0.81190 0.97960 1.10000 0.90000 SINGLE 113 9857 DLBINDIN 132.00 0.84612 0.99002 1.10000 0.90000 SINGLE 113 9858 CHAGAI 132.00 0.84569 0.99033 1.10000 0.90000 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 27 : OPEN LINE FROM BUS 9630 [LORALAI 132.00] TO BUS 9760 [Q.S.ULLA 132.00] CKT 2 SINGLE 28 : OPEN LINE FROM BUS 9630 [LORALAI 132.00] TO BUS 9760 [Q.S.ULLA 132.00] CKT 3 SINGLE 37 : OPEN LINE FROM BUS 9660 [QUETTAIN 132.00] TO BUS 9690 [MARIABAD 132.00] CKT 1 SINGLE 73 : OPEN LINE FROM BUS 9740 [KHANOZAI 132.00] TO BUS 9755 [K. MATHERZAI132.00] CKT 1 SINGLE 95 : OPEN LINE FROM BUS 9810 [NOSHKI 132.00] TO BUS 9813 [MAL 132.00] CKT 1 SINGLE 111 : OPEN LINE FROM BUS 9850 [GIDDER 132.00] TO BUS 9859 [BASIMA 132.00] CKT 1 SINGLE 113 : OPEN LINE FROM BUS 9855 [KHARAN 132.00] TO BUS 9859 [BASIMA 132.00] CKT 1 -------------------------------------------------------------------------------- Line/Transformer Overloads: Two overloading problems was recorded based on 100% of rating A. -------------------------------------------------------------------------------- ACCC OVERLOAD REPORT: MONITORED BRANCHES AND INTERFACES LOADED ABOVE 100.0 % OF RATING SET A % LOADING VALUES ARE % MVA FOR TRANSFORMERS AND % CURRENT FOR NON-TRANSFORMER BRANCHES <----------------- MONITORED BRANCH -----------------> CONTINGENCY RATING FLOW 9630 LORALAI 132.00 9760*Q.S.ULLA 132.00 3 SINGLE 27 112.0 126.9 120.2 9630 LORALAI 132.00 9760*Q.S.ULLA 132.00 2 SINGLE 28 112.0 126.9 120.2 9660 QUETTAIN 132.00 9690*MARIABAD 132.00 2 SINGLE 37 112.0 127.9 113.2 9660 QUETTAIN 132.00 9690*MARIABAD 132.00 1 SINGLE 38 112.0 127.9 113.2 9660 QUETTAIN 132.00 9700*Q.S.MAND 132.00 1 SINGLE 40 184.0 197.0 107.8 9660 QUETTAIN 132.00 9700*Q.S.MAND 132.00 1 SINGLE 44 184.0 195.0 106.6 9660 QUETTAIN 132.00 9700*Q.S.MAND 132.00 1 SINGLE 45 184.0 185.2 100.3 9660 QUETTAIN 132.00 9700*Q.S.MAND 132.00 1 SINGLE 48 184.0 192.0 102.5 9660 QUETTAIN 132.00 9700*Q.S.MAND 132.00 1 SINGLE 49 184.0 188.0 100.2 9710 PISHIN 132.00 9720*GULISTAN 132.00 1 SINGLE 63 112.0 108.6 104.1 9710 PISHIN 132.00 9720*GULISTAN 132.00 1 SINGLE 64 112.0 108.6 104.1 9713 HURAMZAI 132.00 9730*Q.ABDULA 132.00 2 SINGLE 66 112.0 112.5 106.4 9713 HURAMZAI 132.00 9730*Q.ABDULA 132.00 1 SINGLE 67 112.0 112.5 106.4 504760-01-A4 162 % Disco Transmission Expansion Plan National Power System Expansion Plan 9787 KANAK 132.00 9790*PANJPAI 132.00 2 SINGLE 89 112.0 120.0 109.2 9787 KANAK 132.00 9790*PANJPAI 132.00 1 SINGLE 90 112.0 120.0 109.2 CONTINGENCY LEGEND: LABEL EVENTS SINGLE 27 : OPEN LINE FROM BUS 9630 [LORALAI 132.00] TO BUS 9760 [Q.S.ULLA 132.00] CKT 2 SINGLE 28 : OPEN LINE FROM BUS 9630 [LORALAI 132.00] TO BUS 9760 [Q.S.ULLA 132.00] CKT 3 SINGLE 37 : OPEN LINE FROM BUS 9660 [QUETTAIN 132.00] TO BUS 9690 [MARIABAD 132.00] CKT 1 SINGLE 38 : OPEN LINE FROM BUS 9660 [QUETTAIN 132.00] TO BUS 9690 [MARIABAD 132.00] CKT 2 SINGLE 40 : OPEN LINE FROM BUS 9660 [QUETTAIN 132.00] TO BUS 9710 [PISHIN 132.00] CKT 1 SINGLE 44 : OPEN LINE FROM BUS 9663 [PCSIR H.GANJ132.00] TO BUS 9664 [NOHSAR 132.00] CKT 1 SINGLE 45 : OPEN LINE FROM BUS 9664 [NOHSAR 132.00] TO BUS 9710 [PISHIN 132.00] CKT 1 SINGLE 48 : OPEN LINE FROM BUS 9690 [MARIABAD 132.00] TO BUS 9693 [SORRANGE 132.00] CKT 1 SINGLE 49 : OPEN LINE FROM BUS 9693 [SORRANGE 132.00] TO BUS 9700 [Q.S.MAND 132.00] CKT 1 SINGLE 63 : OPEN LINE FROM BUS 9713 [HURAMZAI 132.00] TO BUS 9715 [YARU 132.00] CKT 1 SINGLE 64 : OPEN LINE FROM BUS 9713 [HURAMZAI 132.00] TO BUS 9715 [YARU 132.00] CKT 2 SINGLE 66 : OPEN LINE FROM BUS 9713 [HURAMZAI 132.00] TO BUS 9730 [Q.ABDULA 132.00] CKT 1 SINGLE 67 : OPEN LINE FROM BUS 9713 [HURAMZAI 132.00] TO BUS 9730 [Q.ABDULA 132.00] CKT 2 SINGLE 89 : OPEN LINE FROM BUS 9787 [KANAK 132.00] TO BUS 9790 [PANJPAI 132.00] CKT 1 SINGLE 90 : OPEN LINE FROM BUS 9787 [KANAK 132.00] TO BUS 9790 [PANJPAI 132.00] CKT 2 -------------------------------------------------------------------------------- To overcome these (N-1) violations, more system additions were considered as follows. 132 kV Lines: 1. New 132 KV SDT Line from Mastung to Khad Kucha – 36 KM with Rail conductor 2. New 132 KV SDT Line from Loralai to Qilla Saifullah – 60 KM with Rail conductor 3. Reconductoring of D/C Huramzai – Qilla Abdullah from Lynx to Greeley conductor 18 Km 4. New Ckt Quetta Industrial – Q.S.Manda with Rail 30 Km 5. Reconductoring of D/C Kank – Panjpai from Lynx to Greeley conductor 25 Km 6. Additional 12 MVAR Capacitor at 132 KV side at Kharan G/S 7. New 7.2 MVAR Shunt Capacitor at T-3, 132 KV Kharan G/S With these additional system reinforcements, no voltage or line overloading problems were recorded under both (N-0) and (N-1) conditions. 504760-01-A4 163 Disco Transmission Expansion Plan National Power System Expansion Plan The updated load flow single line diagrams for developed QESCO base case for Year2020 with the above mentioned system reinforcements are given in Appendix-6 (spread over 5 Sheets). 7.2 Short Circuit Study for Year-2020 Base Case The three-phase and single-phase-to-ground symmetrical fault currents were calculated based on IEC 909 Standards for each DISCO. An updated Year-2020 load flow case including all DISCO networks was used in the calculations. The calculations considered the maximum thermal generation in South and the maximum hydro generation in North. 7.2.1 Assumptions For the Short circuit calculations, the following Assumptions were made: a) Bus voltages are set at 1.1+j0.0 pu. b) Generator outputs are set at zero (internal voltage = terminal voltage). c) Pre-fault loading conditions are neglected. d) Transformer turns ratios are set at 1.0 and phase shifts are not modelled. e) Line charging and positive sequence shunt admittances are neglected. 7.2.2 Short Circuit Study Results Due to the volume of the short circuit results, the highest ten (10) short circuit currents at 132 kV (or 66 kV) buses were presented in this section. The complete short circuit for grid stations of DISCOs are given in Appendix-7. 504760-01-A4 164 Disco Transmission Expansion Plan National Power System Expansion Plan 7.2.3 “PESCO & TESCO” Short Circuit Calculations for Year-2020 Short Circuit Calculations of Year-2020 PESCO Short Circuit Current, Bus Number kA Name kV 3-PH 1-PH 1170 NOWSHR-I 132 30.2 22.3 1070 MARDAN 132 30.7 28.7 1169 NOWSHR-N 132 29.8 23.4 1189 SHAIBG-N 132 29.6 28.9 1185 Peshwar City 132 24.4 18.3 1240 JAMRUD-I 132 27.6 25.2 1191 SHAHI BAG SP 132 26.6 22.4 1193 WARSAK ROAD 132 25.9 22.7 1420 HATTAR 132 25.2 17.7 1290 SHMUHDI-2 132 25.0 25.5 Based on 40 kA switchgear rating, no short circuit problems were recorded in the 132 kV network Short Circuit Calculations of Year-2020 TESCO Short Circuit Current, Bus Number kA Name kV 3-PH 1-PH 1275 BARA 132 16.1 15.2 1295 D.A.KHEL 132 11.0 7.1 1215 MARBLE CITY 132 9.7 7.4 1760 ALIZAI 132 9.5 6.3 1755 SADDA TESCO 132 6.8 4.4 1352 GHALANAI 132 5.4 3.6 1350 MIRANSHA 132 5.1 3.8 1317 KORAIZ 132 5.0 2.8 1346 MIR ALI 132 4.8 3.5 1250 LANDIKOT 132 4.7 3.3 Based on 40 kA switchgear rating, no short circuit problems were recorded in the 132 kV network. 504760-01-A4 165 Disco Transmission Expansion Plan National Power System Expansion Plan 7.2.4 “IESCO” Short Circuit Calculations for Year-2020 Short Circuit Calculations of Year-2020 IESCO Short Circuit Current, Bus Number kA Name kV 3-PH 1-PH 2020 BURHAN-1 132 48.1 38.5 2022 BURHAN-2 132 38.4 30.7 2025 SANGJANI 132 47.1 38.1 2045 BURHAN-N 132 44.7 34.9 2060 WAH NEW 132 48.8 39.1 2065 AWC 132 38.3 28.6 2100 TAXILA 132 44.6 37.4 2220 ZEROPOINT 132 37.1 26.0 2240 ISB-UNIVERTY 132 36.7 27.2 2258 UNIVRSTY OLD 132 36.1 26.7 Based on 40 kA switchgear rating, there are many high short circuit values in the 132 kV network. These problems can be solved by either reconfiguring the network or splitting the 132 kV bus and redistributing the lines/transformers. 7.2.5 “GEPCO” Short Circuit Calculations for Year-2020 Short Circuit Calculations of Year-2020 Short Circuit Current, Bus Number 504760-01-A4 GEPCO kA Name kV 3-PH 1-PH 3000 GAKKHAR 132 41.7 34.5 3001 NANDPR-G 132 34.9 35.8 3003 NOKHAR 132 36.3 27.5 3005 AROOP 132 30.9 26.3 3120 G.C.ROAD 132 29.8 22.3 3130 TH.SANSI 132 33.0 26.8 3316 NEW GUJRAT 132 32.4 32.0 166 Disco Transmission Expansion Plan National Power System Expansion Plan Short Circuit Calculations of Year-2020 GEPCO Short Circuit Current, Bus Number kA Name kV 3-PH 1-PH 3105 SAHUWALA 132 28.7 24.2 3146 G.LHR RD 132 28.7 22.6 3140 G.P.ROAD 132 28.3 22.9 Based on 40 kA switchgear rating, one high short circuit value was recorded in the 132 kV network which can be solved by either reconfiguring the network or splitting the 132 kV bus and redistributing the lines/transformers. 7.2.6 “LESCO” Short Circuit Calculations for Year-2020 Short Circuit Calculations of Year-2020 LESCO Bus Number Short Circuit Current, kA Name kV 3-PH 1-PH 4012 LAHORE 132 50.4 47.0 4029 ATTABAD 132 48.7 40.6 4076 RAVI-I 132 49.8 38.4 4113 MCLEODRD 132 48.5 34.0 4114 SUNYVIEW 132 48.9 34.0 4137 QARTABA 132 48.7 36.7 4138 SHADMAN 132 49.5 37.9 4140 REHMNPRK 132 49.5 37.9 4155 WAPDATWN 132 47.9 38.6 4643 JAIL RD 132 49.5 37.9 Based on 40 kA switchgear rating, there are many high short circuit values in the 132 kV network. These problems can be solved by either reconfiguring the network or splitting the 132 kV bus and redistributing the lines/transformers. 504760-01-A4 167 Disco Transmission Expansion Plan National Power System Expansion Plan 7.2.7 “FESCO” Short Circuit Calculations for Year-2020 Short Circuit Calculations of Year-2020 FESCO Short Circuit Current, Bus Number kA Name kV 3-PH 1-PH 4330 NSHTBD-1 132 50.9 49.6 4333 NEWNSHT 132 40.0 36.8 4335 SPS 132 41.6 37.4 4336 SPS COLONY 132 45.1 40.6 4369 UAE-GEN 132 53.1 53.5 4370 GTPS-CC 132 50.4 48.2 4380 FBD-TH-O 132 37.5 30.1 4460 SMNDRIRD 132 42.3 37.5 4495 S.RD NEW 132 38.0 34.8 4510 J.W.RD 132 49.1 45.9 Based on 40 kA switchgear rating, there are many high short circuit values in the 132 kV network. These problems can be solved by either reconfiguring the network or splitting the 132 kV bus and redistributing the lines/transformers. For example, there are 14 lines and two transformers at NSHTBD-1 (No. 4330) where the short circuit current is about 50.9 kA. This bus can be split and lines be distributed, which would considerably reduce the short circuit current. 7.2.8 “MEPCO” Short Circuit Calculations for Year-2020 Short Circuit Calculations of Year-2020 MEPCO Bus Number 6666 504760-01-A4 Short Circuit Current, kA Name MULTAN-N kV 3-PH 1-PH 132 42.4 37.6 7250 MN.KH.RD 132 41.2 36.2 7100 P.GAIB-1 132 37.6 34.4 7300 KAPCO 132 39.2 45.3 7331 KOTADU-O 132 36.5 37.1 7285 QASIMPUR 132 33.6 27.1 168 Disco Transmission Expansion Plan National Power System Expansion Plan Short Circuit Calculations of Year-2020 MEPCO Bus Number Short Circuit Current, kA Name kV 3-PH 1-PH 7109 P.GAIB-2 132 33.5 28.9 6070 YOUSFWLA 132 30.0 29.8 6090 SAHWAL-O 132 26.8 23.5 6140 CHCHWTNI 132 26.8 23.5 Based on 40 kA switchgear rating, there are two marginal high short circuit value recorded in the 132 kV network which can be solved by either reconfiguring the network or splitting the 132 kV bus and redistributing the lines/transformers. 7.2.9 “HESCO” Short Circuit Calculations for Year-2020 Short Circuit Calculations of Year-2020 HESCO Short Circuit Current, Bus Number kA Name kV 3-PH 1-PH 8170 DADU NEW 132 24.6 24.6 8219 SHIKAR-N 132 25.5 26.2 9090 HALAROAD 132 36.4 36.3 9150 PHULLELI 132 29.5 26.1 9159 HYD-TMRD 132 28.1 28.6 9200 KOTRI 132 25.7 26.5 9400 JAMSHORO NEW 132 31.7 32.7 9410 QASIMABAD-I 132 24.8 20.7 9415 QASIMABAD-II 132 24.2 21.6 9420 JAMSRO OLD 132 29.0 28.3 Based on 40 kA switchgear rating, no short circuit problems were recorded in the 132 kV network. 504760-01-A4 169 Disco Transmission Expansion Plan National Power System Expansion Plan 7.2.10 “QESCO” Short Circuit Calculations for Year-2020 Short Circuit Calculations of Year-2020 QESCO Bus Number Short Circuit Current, kA Name kV 3-PH 1-PH 9660 QUETTAIN 132 15.5 15.2 9700 Q.S.MAND 132 14.8 15.9 9780 MASTUNG 132 13.4 11.9 9701 HABIB-P 132 13.3 14.2 9670 SARYAB 132 13.3 14.2 9710 PISHIN 132 10.8 9.1 9690 MARIABAD 132 10.5 10.0 9787 KANAK 132 10.3 7.6 9663 PCSIR H.GANJ 132 10.2 8.0 9715 YARU 132 10.0 8.6 Based on 40 kA switchgear rating, no short circuit problems were recorded in the 132 kV network. 7.3 Cost Estimate The cost estimate for each DISCO’s future projects was prepared on the following bases: a) The same unit cost (with a little mismatch) was used for all DISCOs. b) The cost estimate was prepared for each study year; 2015, 2016, 2018 and 2020 c) The cost estimate was first prepared in PKR, and then converted to USD at a rate of 1.0 USD is equal to 85.5 PKR (rate prevailing in May 2011). 7.3.1 Unit Cost A general unit cost sheet was prepared for all DISCOs, as given in Table 3. A slight modification was made in some cases for more accurate cost estimate based on the prices at each DISCO. The following grid station notations were used in Table 3: 504760-01-A4 170 Disco Transmission Expansion Plan National Power System Expansion Plan a) Augmentation: replacement of an existing power transformer 132/11 kV in a grid station with a larger one; including the switchgear, if needed. b) Extension: addition of a power transformer 132/11 kV to an existing grid station, including the switchgear if needed. c) New Substations: Two types of new substations of 132/11 kV were considered each with two or three power transformer sizes of 26 and 40 MVA respectively. d) New D/C Line: All new lines of 132 kV have been considered as D/C using either Rail or Greely conductor e) Fixed Capacitors: the capacitor banks would be switched manually. f) Switched Capacitors: the capacitor banks would be switched automatically based on the voltage settings. 7.3.2 Cost of Reinforcements The cost of the proposed system reinforcements was estimated to be 116,092 MPKR which is equal to US$ 1,451 million for all the DISCOs combined. While this costing information is not directly used in the NPSEP, it does indicate the level of investment that the DISCOs must make so NTDC can strengthen, reinforce and expand the existing transmission plan as per the NPSEP. The unit costs for DISCO Transmission Expansion are given in Table 3. A summary of the cost estimates of all DISCOs is given in Table 4 in MPKR and in Table-5 in MUSD. Table 3 Sr. No 1 Unit Cost for DISCO Systems Expansion Estimated Cost in Million Rs Estimated Cost in Million US $ 26 MVA 49.200 0.615 40 MVA 62.730 0.784 13 MVA 42.560 0.532 26 MVA 53.200 0.665 40 MVA 67.830 0.848 Type of Investment Augmentations 60 MVA* 2 Extensions 60 MVA* 504760-01-A4 171 Disco Transmission Expansion Plan National Power System Expansion Plan Sr. No 3 4 Estimated Cost in Million Rs Estimated Cost in Million US $ GIS 520.000 6.500 AIS Turnkey 260.000 3.250 AIS Departmentally 173.333 2.167 GIS 480.000 6.000 AIS Turnkey 220.000 2.750 AIS Departmentally 146.667 1.833 On Poles, D/C per Km 14.500 0.181 One Towers, D/C per Km 9.000 0.113 D/C 800mm2 200.000 2.500 New (7.2 MVAR) 4.430 0.055 Addition (1.2 MVAR) 0.250 0.003 Addition (2.4 MVAR) 0.837 0.010 Addition (3.6 MVAR) 3.160 0.040 New (12 MVAR) 8.433 0.105 New (24 MVAR) 16.866 0.211 New (36 MVAR) 25.300 0.316 New (48 MVAR) 33.733 0.422 New (7.2 MVAR) 6.645 0.083 Addition (1.2 MVAR) 0.375 0.005 Addition (2.4 MVAR) 1.256 0.016 Addition (3.6 MVAR) 4.740 0.059 New (12 MVAR) 12.650 0.158 New (24 MVAR) 25.299 0.316 New (36 MVAR) 37.950 0.474 New (48 MVAR) 50.600 0.633 Type of Investment New Sub-Station with 2x40 MVA PTRFs New Sub-Station with 2x26 MVA PTRFs 5 New D/C T/Line with Rail Conductor per Km 6 New D/C Cable per Km Fixed Capacitors (11 kV) Fixed Capacitors (132 kV) 7 Switched Capacitors (11 kV) Switched Capacitors (132 kV) *Assumed 125 % of the cost of 40 MVA transformers 504760-01-A4 172 Disco Transmission Expansion Plan National Power System Expansion Plan Table 4 No. DISCO 1 DISCOs Cost Estimate 2015-2020 in MPKR Year-2015 Year-2016 Year-2018 Year-2020 FESCO 3,968.7 1,571.9 3,711.9 3,052.3 12,305 2 GEPCO 1,996.3 872.9 62.7 696.5 3,628 3 HESCO 14,944.4 5,540.6 3,970.0 2,296.0 26,751 4 IESCO 893.7 2,096.7 1,880.2 428.8 5,299 5 LESCO 8,952.7 938.5 1,197.1 5,346.4 16,435 6 MEPCO 11,201.6 5,556.1 2,583.2 3,071.7 22,413 7 PESCO 3,135.0 788.8 4,088.7 3,490.1 11,503 8 QESCO 6,614.3 940.3 2,209.6 5,239.2 15,003 9 TESCO 1,761.6 52.3 694.0 248.0 2,756 53,468 18,358 20,397 23,869 116,092 Total Table 5 Total DISCOs Cost Estimate 2015-2020 in MUSD No. DISCO Year-2015 Year-2016 Year-2018 Year-2020 Total 1 FESCO 49.6 19.6 46.4 38.2 154 2 GEPCO 25.0 10.9 0.8 8.7 45 3 HESCO 186.8 69.3 49.6 28.7 334 4 IESCO 11.2 26.2 23.5 5.4 66 5 LESCO 111.9 11.7 15.0 66.8 205 6 MEPCO 140.0 69.5 32.3 38.4 280 7 PESCO 39.2 9.9 51.1 43.6 144 8 QESCO 82.7 11.8 27.6 65.5 188 9 TESCO 22.0 0.7 8.7 3.1 34 668 229 255 298 1,451 Total 7.4 Conclusions a) The objective of this study was to evaluate the performance of the DISCO Secondary Transmission System expansion plans in four study years; 2015, 2016, 2018 and 2020. b) The load flow analysis was performed for each DISCO network based on the load forecast at each study year and the local expansion plans. The load flow results were assessed based on the agreed upon planning criteria. The required 504760-01-A4 173 Disco Transmission Expansion Plan National Power System Expansion Plan system reinforcements were then proposed to alleviate the bus voltage and/or line overloading problems. c) The short circuit calculations were performed for each DISCO only for the last developed year (Year-2020) to check the value of the fault current at each bus. A few short circuit problems were recorded and these problems would be solved by reconfiguring the system at these specific locations. d) The cost of the proposed system reinforcements was estimated and was found to be 116,092 MPKR which is equal to 1,451 MUSD at a conversion rate of 1 USD = 80.0 PKR 7.5 Recommendations a) Following uprating of equipment should be considered in medium to long term perspective: i. 132/11 kV transformers of 31.5/40 MVA should at least be used for urban centres. The next factory standard higher size of 60/67 MVA size may be also be considered to be used in thickly populated urban centre grid stations. ii. For 132 kV lines the twin bundled circuits using Rail or Greely conductors may be considered especially in big urban centres. iii. For 132 kV switchgear, the symmetrical short circuit rating should be 40 kA or higher. b) The capacitor banks should always be specified as follows: i. Switched shunt instead of fixed ii. Switching of the steps of capacitor banks should be controlled by Programmable Logic Controller (PLC) to regulate voltage within permissible range during high and low load conditions iii. The current limiting reactors should be used in series with the capacitor banks to limit the in-rush current at the time of switching of the capacitor banks. 504760-01-A4 174 Disco Transmission Expansion Plan National Power System Expansion Plan iv. The detuning capacitors may also be used in series with the capacitor banks if parallel-resonance of odd harmonics is found to occur at any substation c) All T-Off connections of substations should be changed to proper in-out looping of the circuit. The present practice of connecting the substations through T-Off may be abandoned in future, only proper in-out looping should be used. d) The present expansion plan has applied N-1 criteria on lines only and not at 132/11 kV transformers due to huge investment anticipated. However policy should be laid down to achieve N-1 criteria at 132/11 kV transformers in long term perspective. e) The updating of DISCO Transmission Expansion Plan should be an ongoing activity. The present structure of Planning sections in DISCOs is flawed in terms of the fact that planning and studies is not considered as an ongoing continuous activity. The engineers supposed to be busy on this continuous activity are assigned on many other field related tasks such as project monitoring etc. and they are not dedicated for the activity of planning and studies. A dedicated Planning and Studies Section must be restructured for this purpose. f) Capacity building of Planning and Studies engineers of DISCOs should also be carried out on regular basis in terms of updating of software such as PSS/E including the modules of load flow, short circuit analysis and dynamic stability analysis. Also they should be equipped with modern load forecasting techniques and respective software. 504760-01-A4 175 Disco Transmission Expansion Plan SNC-LAVALIN 1801 McGill College Avenue Montreal, Québec Canada H3A 2N4 Tel.: (514) 393-1000 Fax: (514) 334-1446 www.snclavalin.com Issued September 15, 2011