Transcription

फोन ‐26511211 , 26868681 फे क्स Fax : 26865206
ई मेल e‐ mail: [email protected]
वेबसाईट Website : www.nrpc.gov.in भारत सरकार
उ र क्षेतर्ीय िव त
ु सिमित
18-ए, श.जीत िसह मागर्, कटवािरया सराय,
नई िदल्ली- 110016
Government of India
Northern Regional Power Committee
18-A, S. Jeet Singh Marg, Katwaria Sarai,
New Delhi-110016
No.
: उ. क्षे. िव. स./प्रचालन/106/2012/3816-56
िदनांक: 08 .10. 2014
सेवा म : प्रचालन सम वय उपसिमित के सद य ।
To:
Members of OCC
िवषय: प्रचालन सम वय उपसिमित की 103वीं बैठक I
Subject: Minutes of 103rd OCC Meeting.
प्रचालन सम वय
उप-सिमित
की 103 वीं बैठक 17 िसत बर, 2014 (बध
ु वार) व 18 िसत बर, 2014 (बह
ृ पितवार) को
उ.क्षे.िव.स. सिचवालय, नई िद ली म आयोिजत की गई । उक्त बैठक का कायर्व ृ त उ तर क्षेत्रीय िव यत
ु सिमित की वैब
साइट http://www.nrpc.gov.in पर उपल ध है ।
103rd meeting of the Operation Co-ordination sub-committee was held on 17th September
2014 (Wednesday), and on 18th September, 2014 (Thursday) at NRPC Secretariat, New
Delhi.
Minutes
of
this
meeting
have
been
up-loaded
on
the
NRPC’s
web-site
http://www.nrpc.gov.in
Sd/-
ँ
(अजय तलेगॉवकर)
अधीक्षण अिभयंता (प्रचालन)
(एवं संयोजक सद य, प्रचालन सम वय उपसिमित)
List of members of OCC
From organizations which have submitted revised nominations
Adani PL.
APCPL
Bajaj EPL
BBMB
HVPNL
NHPC
POWERGRID
RRVUNL
NTPC
HPSEBL
NRLDC
NLDC
BYPL
Lanco APTL
(i)
(ii)
(i)
(ii)
Sh. Nirmal Sharma, VP (O&M), Fax- 0141-2292065
Sh. Sameer Ganju, Head-Northern Region, Fax No. 011-24115560
Sh. M.K.S.Kutty, AGM (O&M)-I, IGSTPP, Fax No. 01251-266326
Sh .M.Raghuram, AGM (OS), APCPL, Fax No. 0120-2591906
Sh. Narendra Wadhwa, GM (O&M), 0120-2543949
Director (PR) Fax- 0172-2652820
Chief Engineer (Comm.); SE (SO & SLDC): 0181-2664440 Fax-0172-2560622
(i) Sh. Janardan Choudhary, General Manager (O&M), Faridabad – Fax-0129-2272413
(ii) Sh. S P.Singh, Chief Engineer (O&M), Faridabad – Fax-0129-2272413
(i) Sh. Prabhakar singh, ED(NR-I), Fax No. 011-26853488
(ii) Sh. A.K. Arora, General Manager (O&M), NR-I,
(iii) Sh. A.K. Pal General Manager (O&M), Jammu; Fax- 0191-2470293
(iv) Sh.Rajeev Sudan Dy, General Manager (OS), Fax- 0191-2470293
Sh. P.S Arya, Chief Engineer (PPMC & IT), Fax- 0141-2740006
(i) Head of OS/ Head of RCC, Fax No. 0120-2410082
(ii) Sh. H.S.Agarwal, AGM (OS-NR), Lucknow; Fax-0522-2305851/23205846.
(i) Sh Suneel Grover, Chief Engineer (SO &P), Fax No. 0177-2653656
(ii) Sh. Deepak Uppal, SE (PR& ALDC) : Fax-0177-2837143
(iii) Sh. Joginder Singh. Power Controller. Fax No. 0177-2837143.
General Manager, NRLDC - 26854861, 4051, 26569504 Fax- 26852747
General Manager, NLDC, Fax:011-26853488/26601079
Sh.Sunil Kakkar, AVP, Fax- 011-39992076
Sh Venkata Sudheer Babu, Director, Fax: 0124-2341627/4741024
From organizations which are yet to submit revised nominations
CHANDIGARH
DTL
IPGCL
Powerlink
NCRPB
HPGCL
UHBVNL
HPPTCL
HPLDS
J&K (PDD)
J&K SPDCL
PSTCL
PSPCL
RRVPNL
JVVNL
UPPTCL
UPRVUNL
DVVNL
PTCUL/UPCL
UJVNL
CEA
NPCIL
SJVNL/NJHPS
THDCL
JPPVL
RPSCL
Jhajjar PL
SE (Elect. Op.) – Ph. 0172-2741105, Fax-2742733, 2740505
General Manager (O&M); GM (SLDC) Fax-23236462, 23221069
DGM, IPGCL, New Delhi, Fax- 23370884
ED&CEO, Powerlinks Fax: 011-45159555
Rajeev Malhotra, Chief Engineer, Fax- 011-24642163
SE(Tech.)H.Q., HPGCL, Panchkula Fax-0172-5022436/ SE(O&M-VI),Panipat TPS, Fax-01802566768
General Manager, Fax: 0172-3019134
Director (Planning & Contracts), Fax: 0177-2626284
SE, SLDC, Fax: 0177-2837543
Chief Engineer (SO) Fax-0191-2476213
GM, Fax: 0194-2500145
Chief Engineer (SLDC); SE (SLDC Operation) Fax – 0175-2365340
Eingneer-in- Chief (PPRR), Fax- 0175-2308698.
Chief Engineer (LD); SE (SO&LD) – Fax- 0141-2740920
Director (Technical), Fax: 0291-2742229
CE (PS); Fax- 0522-2287880, 2288736
DGM (TOM), 0522-2287861
Fax No. 0562-26011827/2605465
DGM (SO) Fax- 0135-2451160, 0135-2763570
General Manager Engineering: 0135-2761485, fax- 0135-2761549
Director, (GM-I) and Director (OPM), SA to Member (GO&D), CEA, Fax-26732337, 26170385, 26108834
(i) Station Director, NAPS; Fax. 05734-222177.(ii) Sr. Manager (Transmission), NPCILFax.-02225563350
Chief Engineer (C&SO), Fax- 0177-2673283
AGM (EMD), Tehri, Fax- 0135-2439401
Sh. Suresh Chandra, Director, Fax- 0120-4516201/4609464/4609496
Sh. Niranjan Jena, AVP/ Sh. Suvendu Dey, GM-O&M, Fax: 05842-300003
Sh. Goutam Biswas, GM (Production), 01251-270155
Summary record of Discussions of the 103rd Operation Coordination Sub-committee
meeting.
List of participants for 17th & 18th September, 2014 is enclosed at Annexure- IA & IB
respectively.
A. Confirmation of Minutes.
1. Minutes of the 102nd meeting of the OCC held on 13th & 20th August, 2014 at NRPC
Secretariat, issued vide letter No. NRPC/OPR/106/2012/3327-67 dated 08.09.2014 were
confirmed by the OCC.
B. Review of Grid Operations for last month (August, 2014).
2. Presentation by NRLDC on Grid Operations during August, 2014.
A
NRLDC reported that peak demand and average demand met for the region during
August, 2014 was 47229 MW and 42130 MW respectively. The maximum and minimum
frequency was 50.54 Hz and 49.45 Hz respectively.
B Frequency Profile.
Frequency Profile of past one year: - NRLDC reported following Frequency Profile of past
one year:Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
April
May
June
July
Aug
13
13
13
13
13
14
14
14
14
14
14
14
14
<49.7 Hz
--
--
1.03
1.05
1.91
0.62
0.36
0.25
1.26
1.1
4.86
3.52
3.59
<49.8 Hz
--
--
--
--
--
--
--
2.19
8.61
6.59
16.83
13.46
15.47
<49.9 Hz
--
--
--
--
--
--
7.22
12.34
31.64
23.87
36.76
35.32
39.48
49.90 –
50.05 Hz
(wef: 17th
Feb)
--
--
--
--
--
--
39.92
48.51
51.34
52.02
45.37
49.99
48.33
50.05-50.10
Hz
--
--
--
--
--
--
39.92
17.98
10.62
13.11
10.17
9.61
8.37
>50.10 Hz
--
--
--
--
--
--
--
21.17
6.45
10.5
6.23
4.58
3.35
>50.20 Hz
23.61
9.3
9.65
7.93
9.56
9.69
11.66
5.40
0.67
2.55
1.38
0.65
0.50
Av.Freq
(Hz)
50.11
50.06
50.03
50.02
50.02
50.03
50.06
50.02
49.95
49.98
49.93
49.93
49.92
Representative of NRLDC stated that the grid operated below 49.9 Hz for 39.48 % of time
during August, 2014 and frequency remained above 50.05 Hz for 12% of time. He added that
the frequency had remained in the prescribed band for about 48 % of the time
C
Availability Summary- NRLDC reported following comparison of availability summary of
Hydro, Thermal, Nuclear and Inter Regional export/Import for August,2014 vs August,
2013 and in July, 2014
Generation
Thermal
Hydro
Nuclear
Inter-Regional
Import
Regional
Availability
D
Aug, 2013
(A)
MU / day
472
298
26
Aug, 2014
(B)
MU / day
578
319
22
Addition
(C) =(B)-(A)
MU / day
106
21
-4
July, 2014
(D)
MU / day
597
305
23
72
117
45
121
868
1036
168
1046
Consumption Growth-with respect to same month in previous year:
NRLDC reported following consumption growth (%) for last one year on monthly basis
compared to same month previous year.
PUN
HAR
RAJ
DELHI
UP
Aug
13
0.07
20.1
12.5
3.2
15.1
Sep
13
13.58
22.81
26.6
9.46
10.58
Oct
13
4.98
2.47
-4.17
10.4
0.91
Nov
13
-0.04
-0.7
7.04
2.52
2.97
Dec
13
3.6
7.43
11.9
2.25
5.93
UTT
13.7
3.75
7.32
4.02
2.36
HP
J&K
-0.6
-3.1
0.75
0.63
2.13
-1.99
0
0.59
Region
9.6
14.58
1.74
2.76
State
Feb
14
8.1
19.17
20.05
4.34
14.73
Mar
14
-1.71
-8.07
2.98
-0.13
8.55
April
14
-3.03
2.54
10.98
-3.09
16.91
May
14
-13.42
-6.45
6.44
-4.65
5.52
June
14
17.52
7.21
21
8.03
19.02
July
14
9.70
4.93
25.19
8.08
4.95
Aug
14
18.45
24.31
21.07
14.16
7.42
14.32
4.95
2.37
-2.41
16.35
4.38
8.57
4.62
6.52
Jan
14
-4.85
5.83
9.24
1.44
7.05
11.2
8
4.79
6.43
3.3
6.76
7.04
-0.5
0..95
6.42
3
-1.56
2.43
-2.1
0.90
1.03
5.99
10.80
4.3
5.39
13.88
2.2
7.06
-0.95
14.69
9.88
15.43
Rajasthan, Punjab, Haryana, and Region as a whole have recorded a consumption growth
more than 15 % in Aug., 2014 vis-à-vis July, 2014. The growth is mainly due to 24 hrs. supply
initiative of Rajasthan, Generation addition and availability of Thermal power plants.
E
The maximum daily consumption and maximum demand met as reported by
NRLDC in August, 2014.
(a) Maximum Demand met (MW).
State
Maximum
Demand met
(in MW)
Punjab
Haryana
Rajasthan
Delhi
9727
9152
10077
5507
Date / Time in hrs
Record Max.
Demand met (in
MW)
Date / Time in
hrs
03.08.14 at 18:15
25.08.14 at 21:00
26.08.14 at 11.30
27.08.14 at 22:49
10377
8752
10038
5925
06.07.14
16.07.14
19.02.14
15.07.14
UP
Uttrakhand
HP
J&K
12295
1761
1313
1826
13089
1833
1392
1991
21.08.14 at 05:00
06.08.14 at 20.00
28.08.14 at 07:30
26.08.14 at 21:00
31.07.13
26.06.14
17.01.14
19.01.14
During August, 2014, Punjab and Haryana have crossed their earlier record of
Maximum Demand Met in MW
(b)
Maximum Consumption during August, 2014 and Record Max. consumption so far.
Maximum Energy
Consumption
(in MU)
217.22
196.29
214.18
115.42
271.71
37.42
27.29
35.04
6.61
States
Punjab
Haryana
Rajasthan
Delhi
UP
Uttarakhand
HP
J&K
Chandigarh
Date
03
21
24
27
31
21
23
28
26
Record Max. Energy
Consumption
(in MU)
229.43
191.49
207.42
121.63
290.30
38.54
27.21
43.51
7.31
Date
06.07.2014
16.07.2013
09.07.2014
11.07.2014
01.06.2014
26.06.2014
28.05.2014
28.01.2014
29.07.2013
During August, 2014, Haryana, Rajasthan and HP have crossed their earlier record of
Maximum Energy consummation.
(c) Peak Import by Constituents from the Grid:
State
Punjab
Haryana
Rajasthan
Delhi
UP
Uttrakhand
HP
J&K
Maximum Import
On (date)
from Grid (in MW)
5440
11
5355
1
4215
24
4138
13
6781
21
1124
1
307
31
1105
27
Record Max. Import
from Grid (in MW)
5636
5723
5530
4481
7037
1395
1572
1937
Date
14.06.2014
27.06.2014
11.02.2014
15.08.2014
02.06.2014
22.01.2014
16.12.2013
26.01.2014
F Representatives of NRLDC reported the daily over drawl (+)/ under drawl (-) by various
constituents during August 2014 as under:Date
Min.
freq.
<49.70
<49.80
<49.90
Punja
b
Hary
ana
Rajsth
an
Delhi
UP
Uttara
khand
HP
J&K
01‐08‐2014
50.16
49.36
7.29
20.62
53.11
‐0.37
‐1.64
1.03
‐0.18
5.08
2.22
‐0.39
02‐08‐2014
50.22
49.64
2.36
22.12
52.16
‐0.22
‐0.04
0.64
‐0.08
5.63
1.65
‐0.34
03‐08‐2014
50.22
49.64
2.36
22.12
52.11
0.09
‐0.60
‐2.46
‐0.87
4.41
1.03
0.40
04‐08‐2014
50.21
49.53
4.03
10.90
30.23
0.69
‐1.39
‐2.78
0.23
2.31
‐0.22
‐0.08
05‐08‐2014
50.31
49.61
0.87
4.24
21.44
0.29
‐0.84
1.58
‐1.15
2.56
‐0.44
‐0.55
06‐08‐2014
50.23
49.59
1.50
9.10
24.40
‐0.08
0.05
‐0.92
0.48
3.18
0.31
‐0.32
07‐08‐2014
50.29
49.66
0.60
4.13
14.27
0.02
‐1.10
‐2.39
‐0.09
3.14
1.23
‐0.68
08‐08‐2014
50.21
49.54
2.16
11.96
34.94
‐0.44
‐0.98
1.44
‐2.25
1.33
0.46
0.14
09‐08‐2014
50.25
49.59
0.63
4.30
21.92
0.67
‐0.92
‐0.11
0.05
6.03
‐0.14
0.43
10‐08‐2014
50.24
49.61
0.88
6.85
18.97
0.43
‐1.17
‐0.20
‐3.45
3.28
‐0.83
0.01
11‐08‐2014
50.19
49.57
1.97
16.70
38.05
0.87
‐2.29
‐1.42
‐0.97
4.10
‐0.46
‐0.15
12‐08‐2014
50.24
49.57
3.14
15.69
40.97
‐0.31
‐1.42
0.63
1.74
1.45
0.98
1.25
13‐08‐2014
50.23
49.57
1.83
15.20
38.94
‐0.46
‐1.10
‐1.60
0.12
3.26
0.17
‐0.31
14‐08‐2014
50.14
49.60
2.04
10.83
35.03
0.23
‐0.67
‐1.38
‐1.32
2.08
0.15
‐0.70
15‐08‐2014
50.34
49.60
1.53
9.95
30.06
‐0.13
‐1.42
‐1.48
‐1.61
0.45
‐1.10
‐0.04
16‐08‐2014
50.22
49.49
1.53
6.46
28.40
0.21
‐0.83
0.03
‐1.04
2.48
‐0.07
0.00
17‐08‐2014
50.23
49.53
3.21
10.61
31.92
‐0.93
‐1.44
1.64
‐1.80
3.95
0.00
‐0.45
18‐08‐2014
50.12
49.52
7.11
26.59
63.91
‐0.35
0.23
1.16
0.77
2.01
‐0.04
0.69
19‐08‐2014
50.09
49.46
26.06
60.17
90.82
‐0.65
‐0.74
2.76
0.95
2.92
‐0.52
0.55
20‐08‐2014
50.16
49.49
11.33
35.32
67.40
‐0.84
‐0.31
4.22
‐0.56
3.09
0.27
0.61
21‐08‐2014
50.19
49.56
6.48
26.92
54.99
‐0.31
1.91
9.07
‐1.94
3.61
0.40
‐2.85
22‐08‐2014
50.24
49.50
1.28
10.69
45.34
‐0.07
‐1.71
8.23
0.55
4.13
0.79
0.14
23‐08‐2014
50.23
49.52
3.54
14.41
50.86
1.00
‐0.29
9.23
1.16
5.04
1.14
0.22
24‐08‐2014
50.31
49.61
3.00
17.64
39.80
0.52
‐2.62
5.35
1.90
5.13
1.07
0.25
25‐08‐2014
50.23
49.60
1.53
8.72
34.44
0.49
‐1.13
4.66
1.39
6.48
1.95
1.25
26‐08‐2014
50.34
49.61
2.57
26.33
52.36
0.60
‐0.49
‐1.54
1.25
3.18
1.94
0.02
27‐08‐2014
50.20
49.57
2.64
13.69
42.77
0.97
1.52
9.17
0.80
3.20
2.49
0.37
28‐08‐2014
50.13
49.46
6.74
27.90
61.10
0.42
‐1.24
12.16
‐1.72
‐0.34
1.41
0.79
29‐08‐2014
50.18
49.62
1.03
7.20
30.97
0.55
2.44
8.40
‐0.68
2.79
0.96
1.39
30‐08‐2014
50.24
49.74
0.00
2.33
19.80
0.39
‐0.80
‐0.05
‐2.93
1.79
1.39
1.48
31‐08‐2014
50.33
49.79
0.00
0.01
2.30
0.32
‐2.44
‐2.75
‐3.29
‐0.41
0.14
‐0.05
Representative of NRLDC informed that there had been continuous over drawl from UP,
Rajasthan, Punjab and J&K.
RRVPNL informed that O/D was due to outage of Kawai, Kali Sindh and Chhabra Generaring
Stations.
SE (O), NRPC requested utilities to properly plan for meeting their load requirement. In case of
shortages, they can purchase from power exchange or through bilateral contracts. He also
requested thermal stations to bring in their machines in case of shortage situation.
G. Representative of NRLDC reported addition of following New Generation/Transmission
elements in the grid since last meeting:New Generating Units:
Nil.
New Transmission elements:
1. 220 kV Dausa – Alwar LILOed at Alwar (400 kV). 220 kV Alwar – 400 kV Alwar
charged at 19:01 hrs of 20.08.2014 and 400 kV Alwar – 220 kV Dausa at 17:00 hrs of
20.08.2014.
2. 1000 MVA ICT at Anapara ‘D’ ideally charged at 21:19 hrs on 22.08.14.
3. 400 kV Dadri - Harsh Vihar - I line 1st time charged at 17:40 hrs on 26.08.14 from
Harsh Vihar end while other end was kept open from Dadri end.
4. 400 kV Dadri - Harsh Vihar - II line 1st time charged at 17:05 on date 06.09.2014.
5. 80 MVAR Bus Reactor 1st time charged at 19:15 hrs on 08.09.2014 at Kotputli.
C. Planning of Grid Operation for October, 2014
3.1 Anticipated Demand in Northern Region during October, 2014 is as under:
Following was anticipated Power Supply Position in Northern Region during October,
2014 as per original LGBR included in the agenda notes of the meeting:-
October, 2014
State
CHANDIGARH
DELHI
HARYANA
H.P.
J&K
PUNJAB
RAJASTHAN
U.P.
UTTARAKHAND
REGION
Anticipated
Peak
Demand
MW
MW
MW
%
Anticipated
Energy
Requirement
MU/day
213
4746
7146
2021
2225
7544
9208
10594
1809
37073
-47
196
646
441
-205
-306
608
-1706
14
-5227
-18.1
4.3
9.9
27.9
-8.4
-3.9
7.1
-13.9
0.8
-12.4
4.04
71.76
117.74
25.16
40.97
120.00
156.45
257.74
33.38
827.24
Expected
availability
260
4550
6500
1580
2430
7850
8600
12300
1795
42300
Surplus/Deficit (-)
Anticipated
Energy
Availability
MU/day
MU/day
%
4.73
88.25
133.91
28.79
32.95
120.00
155.26
211.36
37.58
812.81
0.69
16.48
16.17
3.63
-8.02
0.00
-1.19
-46.38
4.20
-14.43
17.01
22.97
13.73
14.41
-19.58
0.00
-0.76
-18.00
12.59
-1.74
Surplus/Deficit ()
3.2 Members present in the meeting fine-tuned their Anticipated Power Supply Position during
October, 2014 as given below:-
1.Anticipated
Requirement
2 Anticipated availability
a. Own sources
(MU/day)
a. CGS (MU/day)
b. Import (bilaterals /
banking/Power
Exchange)
c.
Export
(bilaterals/banking/
Power Exchange
d.
Power Purchase
On day ahead basis
Net Availability
3. Anticipated shortage
October, 2014
State/UT (All figures in MU/Day)
DELHI
HARY
H.P
PUNJAB
ANA
72
25.00
133.90
31.80
11.13
56.28
13.38
16.74
0.49
1.08
156.28
137.4
189.50
75.8
136.40
61.5
53.10
-
-
3.5
-
0.0
-
133.9
Nil
189.50
33.12
Nil
0.00
103.74
Nil
RAJ
25.00
Nil
U.P
289
UTTRA
KHAND
38.15
230
123
36.00
17.00
101
12.25
6
6.75
-
-
-
0.00
230
-59
36.00
2.15
/ surplus (-)
4. % Shortage / surplus
(-)
Measures to bridge
energy shortage/dispose
off energy surplus:
Nil
Nil
$
DELHI
October, 2014
State/UT (All figures in MW)
HARY
H.P
PUNJAB
ANA
1294
5900
4550
2 Anticipated availability
a. Own sources
b. CGS
1325
2562
740
472
a.
705
82
3. Anticipated shortage
/ surplus (-)
4. % Shortage / surplus (-)
Measures to bridge
peak shortage/dispose
off peak surplus:
$
56
-20.4
21.26
@@
1.Anticipated Requiremen
Import (bilaterals
/banking/Power
Exchange)
b.
Export
(bilaterals/banking/
Power Exchange)
c. Power Purchase on
day ahead basis
Net Availability
Nil
***
RAJ
U.P
7962
6200
3200
7896
5683
3000
2213
0
-
300
-
-
14
-
4550
1294
Nil
Nil
Nil
Nil
$
5.63
5900
7896
Nil
-66
Nil
-0.82
@@
&&
13000
UTTRAK
HAND
1850
11000
5800
4700
1725
750
675
500
300
-
-
-
-
11000
1725
2000
125
15.4
6.75
***
&&
Power supply position has been reviewed during the DPPG Meeting wherein
distribution companies have assured that surplus power if any with discoms will be
disposed off on day ahead basis through power exchanges and through banking with
different utilities and shortages would be met through power purchase on day ahead
basis.
@@ On real time basis load shedding may be imposed.
*** Power to be purchased on day ahead basis from energy exchange/ emergency
rostering.
&& PTCUL has plans to purchase short term power from exchange & load shedding in
real time condition.
4.
Maintenance Program of Generating Units and Transmission Lines.
4.1 Maintenance programme for Generating Units.
The maintenance program of generating units for the months of September, 2014 and
October, 2014 as approved by OCC has been hosted on NRPC web-site vide our letter of
even No. 3649-89 dated 22.09.2014.
4.2
Outage programme for Transmission Elements.
4.2.1 Outage program for Inter-Regional transmission elements proposed by POWERGRID
(NR-I & NR-II), RRVPNL and other RPCs & Intra-Regional transmission elements
proposed by POWERGRID (NR-I & NR-II), NTPC (NCR & NRHQ), NHPC, IGSTPP
(Jhajjar), BBMB, JPPVL, DTL, HVPNL, PSTCL, RRVPNL, UPPTCL and PTCUL for the
months of September, 2014 and October, 2014 were considered by OCC and approved
subject to system conditions.
The Outage program for Inter-Regional and Intra-Regional transmission elements as
approved tentatively had already been hosted on NRPC web-site http://www.nrpc.gov.in
and intimated vide letter No. NRPC/OPR/106/2012/3649-89 dated 22.09.2014
4.2.2 Representative of NRLDC intimated the following details of planned and forced shut downs
availed by the utilities:Break up of Shut downs (Planned & Forced) during August, 2014
Owner
Planned
S/Ds
Forced S/Ds
Breakdown Emergency
Total
Total
PGCIL
JP POWER
GRID
71
37
26
63
134
2
0
0
0
2
RRVPNL
5
7
2
9
14
UPPTCL
14
40
13
53
67
DTL
3
4
3
7
10
HVPNL
3
4
3
7
10
PSEB
1
2
0
2
3
UPCL
1
2
2
4
5
NTPC
2
0
0
0
2
PKTCL
1
5
0
5
6
BBMB
1
5
1
6
7
APL
1
0
0
0
1
APCPL
0
2
1
3
3
POWERLINK
0
2
0
2
2
Total
105*
110
51
161**
* Periodicity of Planned shut downs is given in Annexure-II
266
4.3 Detailed Discussion on Practicality and Acceptance of “Draft Procedure for
Transmission Elements Outage Planning” submitted by NLDC in earlier OCC
meeting .
SE (O), NRPC informed that the Draft Procedure for “Transmission Elements Outage
Planning” was submitted by NLDC first in the Feb., 2013 for comments. No other utilities
submitted the comments except POWERGRID NR-I. The comments submitted by
POWERGRID NR-I were enclosed as Annexure-I to the Agenda. He further added that the
procedure is still to be approved by OCC.
Representative of NLDC informed that they are adhering to the Draft Procedure for
“Transmission Elements Outage Planning”.
SE (O), NRPC stated that the Draft Procedure for “Transmission Elements Outage
Planning”
is
available
on
NRPC
website
whose
link
is
http://www.nrpc.gov.in/Meetings/Other/outage_planning.pdf. He requested utilities to
submit their comment within 15 days.
Representative of POWERGRID informed that they are facing some difficulties in real time
coordination and operation in availing the shutdown. He further added that particularly in
the jobs related to relay retrofitting it is very difficult to plan the requirement of the
shutdown as the actual date depends on OEM engineer. He added that similar was the
case with CSD of breaker.
SE (O), NRPC stated that the emergency conditions during which shutdown can be given
had already been defined in the 80th OCC meeting held on 19th October, 2012. It was also
agreed that for crane movement in the vicinity of any element emergency shutdown of
about 30 minutes would be given.
It was agreed that utilities would give their list of relay retrofitting jobs as well as that of
replacement of CSD of breaker (without specific dates). OCC would approve these
shutdowns with the stipulation that utilities would approach NRLDC 3 days in advance to
carry out these works. The provisional approval of OCC for these works would remain
valid for duration of 3 meetings of OCC including the OCC in which it has been approved.
e.g if a work has been approved in 100th OCC meeting then it would not be necessary to
bring it for approval in 101st and 102nd OCC meetings for approval. Based on system
conditions and approval given in 100th OCC, NRLDC can take a decision for approval.
5. Long outage of generating units and Transmission elements.
Generating units which are out for a long period and have not been revived are listed as
under:S.
No.
Gen. Stn./ Unit No.
Expected
of revival
RAPP A unit -1
Date from Reason of Outage
which
under
outage.
09.10.2004 Regulatory clearance
1
2
3
4
5
6
7
Obra # 7
Obra # 10
Obra # 11
Harduagang # 7
Parichha # 2
Dhauliganga HPS # 1
01.07.2010
22.03.2012
10.07.2011
05.03.2011
07.03.2014
28.06.2014
30.11.2014
31.03.2015
30.06.2015
30.11.2014
30.06.2015
30.11.2014
8
9
10
11
Bhakra (L) # 4
Dehar # 6
Giral # 1
Rihand # 1
22.11.2013
02.03.2014
11.07.2014
15.08.2014
(B)
R & M Work
R & M Work
R & M Work
R & M Work & up-rating
R & M Work
Generator
Transformer
Problem
RM&U works
R & M Work
Bad Material Leakage
Over hauling
date
Not available
28.02.2015
30.06.2015
30.09.2014
25.09. 2014
System elements that had been out of service for a long time and not revived are as under:
1.
2.
50 MVAR, 400 kV, Bus Reactor
at SULTANPUR
50 MVAR, 400 kV, Bus Reactor
at SARNATH.

















3.
FSC of Balia-I at Lucknow
4.
FSC of Balia-II at Lucknow
5.
63 MVAR, Bus reactor at Dadri



6.
100 MVA 220/132 kV ICT-III at
Obra ‘A’ TPS




7.
95 MVAR TCR of SVC-I at Kanpur
8.
FSC at Kishanpur on KishanpurPampore line I & II
9
TCSC-II at Gorakhpur on 400 kV
Muzafarpur-Gorakhpur Line.
10
400 kV Parichha-Mainpuri D/C
lines**










Reactor would be replaced by 80 MVAR
reactor.
LOI placed with M/s CGL on 27.06.2012.
Received at site.
Expected commissioning by 31.10.2014.
Out Since 16.02.2009
Rector would be replaced by 125 MVAR
reactor.
Tender opened on 07.06.2013.
LoI placed in December, 2013.
Expected commissioning by December, 2014
For shifting to Sohawal (PG)
Out since 05.06.2013.
LoI placed on L & T
Expected by January, 2015.
For shifting to Sohawal (PG)
Out since 05.06.2013.
LoI placed on L & T
Expected by January, 2015.
Reactor burnt.
125 MVAR Reactor is to be installed.
Process for procurement of new reactor
underway and budget has been approved.
Out since 21.07.2013.
Action for procurement of new ICT of the same
specifications has been initiated.
Tender for part-I & part-II have been opened on
11.08.2014 & 02.09.2014 respectively.
Placement of Order is in progress.
Out since 28.10.2013.
Damaged due to fire.
Expected by October, 2014
Became redundant (Spare).
Due to shortened line length on account of LILO
of the line at Mirbazar and Ramban.
Out since 25.07.2013.
Burnt out.
Expected by December, 2014.
Out since 31.05.2014
Tower collapse due to storm.
** On a query from the representative of NRLDC regarding restoration of 400 kV
Parichha-Mainpuri D/C lines, representative of UPPTCL intimated that revival time
cannot be indicated at this stage due to a dispute with the contractor. On the
suggestion of the representative of NRLDC for restoring at least one circuit using ERS,
representative of UPPTCL assured to explore the availability of ERS.
D.
6.
6.1
Operational Improvements.
Recommendation of Enquiry committee for grid disturbances on 30th July, 2012 &
31st July, 2012:
Monitoring of implementation of recommendations in prescribed format:
Central Electricity Authority had desired that implementation of the recommendations is to be
closely monitored and for this purpose they had forwarded 8 Nos. formats. The
implementation status in these formats is required to be furnished. This was conveyed to
constituents vide our letter No. NRPC/OPR/105/03/2013 dated: 15.05.2013. The letter along
with
formats
is
available
on
NRPC
web-site (http://www.nrpc.gov.in/Reports/Other/formats%20for_ATR.pdf ). The information in these
formats is not being received in NRPC Secretariat on regular basis.
The status as available is given below.
S.No.
Utility
Format
required to
be
submitted
Status
1
UPPTCL
1-4
Submitted till 1st F/N of September, 2014
2
3
4
5
6
7
8
9
10
11
12
13
14
15
PSTCL
RRVPNL
HVPNL
PTCUL
HPSEB Ltd.
DTL
PDD, J&K
UPRVUNL
PSPCL
RRVUNL
HPGCL
UJVNL
BBMB
POWERGRID
(NR-I & NR-II)
NTPC
NHPC
THDC
SJVNL
NPCIL
Lanco Power
1-4
1-4
1-4
1-4
1-4
1-4
1-4
1
1
1
1
1
1-4
1-3 & 6
Submitted till 1st F/N June, 2014
Work completed. Not required.
Submitted till 1st F/N of August, 2014
Submitted till 1st F/N of August, 2014.
Not submitted after June, 2013
Submitted till 1st F/N of March, 2014
Submitted till 1st F/N of December, 2013.
Submitted till 2nd F/N of December, 2013.
Submitted till 1st F/N August, 2014
1
1
1
1
1
1
Submitted till 2nd F/N of March 2014.
Submitted till 1st F/N of July 2014.
Submitted till 1st F/N of September, 2014.
Submitted till 1st F/N of July 2014
Not required. (As no deficiency observed during
Basic Protection Audit).
16
17
18
19
20
21
It was noted that duly filled in Formats are not being furnished regularly.
PDD, J&K has not submitted the information after June 2013. HPGCL has not submitted
information after December 2013. PSPCL & NTPC have not submitted information after
March, 2014.
UJVNL has also not submitted the information in the requisite formats though in the 98th OCC
meeting, representative of UJVNL had assured to furnish the updated information within a
week’s time but the same has not been received so far. UJVNL was also requested to submit
the information in applicable formats regularly.
SE (O), NRPC requested Utilities to submit the requisite information in the relevant
Formats on regular basis. Members agreed for the same.
6.2 Discussions on implementation of recommendations: Recommendations pertaining to
operational aspects made by the Enquiry committee for grid disturbances on 30th July, 2012 &
31st July, 2012 are as under :Recommendation No. “9.1.1” regarding third party protection audit.
“There is a need to review protection schemes. This Committee concurs with
recommendation of previous enquiry committees that a thorough third party
protection audit need to be carried out in time bound manner. This exercise should be
repeated periodically and monitored by RPCs.”
(i)
Progress of rectification of deficiencies observed/improvements suggested in
Basic Protection Audit.
As regards rectifying deficiencies observed in basic protection audit carried out by
POWERGRID & CPRI, Member Secretary, NRPC vide fax dated 09.01.2013 had requested
utilities concerned to submit fortnightly reports in the prescribed formats. In the PSC meeting
held on 05.04.2013 it was decided that all the utilities would submit latest status as on 1st
April 2013 and thereafter the status would be submitted on monthly basis.
(a) The status of submission of progress of rectification of deficiencies up to 103rd
OCC meeting is given in Annexure-III. However, a brief in regard to expected
completion time of rectification of protection related deficiencies by utilities is
under:
S.
No.
Utility (s)
1
2
3
UPPTCL
UPRVUNL
RRVPNL
4
RRVUNL
5
6
7
HVPNL
HPGCL
PSTCL
No. of Sub- Expected time to complete the rectification
stns/Switchya (end date)
rds
covered
under BPA
21
March, 2015
4
November, 2014
8
July, 2016 (Due to installation of 220 kV BBP at
400 kV Ratangarh GSS). Representative of
RRVPNL was advised to compress this schedule
to match with the installation of 400 kV BBP at
same S/s so that rectification may be completed in
July, 2015.
2
Suratgarh - Completed;
Kota -March 2015
1
Completed.
3
March, 2015
3
March, 2015
8
9
10
11
12
13
14
15
PSPCL
DTL
HPSEB Ltd.
PTCUL
UJVNL
PDD, J&K
BBMB
POWER
GRID
16
17
NTPC
NHPC
18
19
20
21
22
SJVNL
THDC
NPCIL
JPVL
Lanco
Power
(b)
1
1
1
2
1
3
7
46
10
8
1
1
1
3
1
Current status not available.
December, 2014
November, 2014
November, 2014
Status of progress is not known.
Status of progress is not known.
March, 2015
POWERGRID (NR-II) by October, 2014. By that
time, NJPC PLCC system would be restored as
procurement of PLCC cards from BPL is in
process.
POWERGRID (NR-I) – completed but some PLCC
issues are yet to be resolved with other utilities.
December, 2014
Uri-I – completed;
Chamera-II – Completed. However, providing
redundancy of 48 V DC source is pending.
Chamera-III – Completed However, Main-I & Main
–II DP Relay of different make /characteristic
proposed to replace latter is pending.
Dhauliganga – September, 2014;
Salal – October, 2014;
Chamera-I- November,2014
Tanakpur - December, 2014;
Dulhasti – August, 2015.
December, 2014.
Completed.
October, 2014.
Completed
No deficiency observed.
The corrective actions for smooth operation of PLCC system are still required to be
taken by POWERGRID, UPPTCL and RRVPNL. These defects had been observed
during BPA carried out by CPRI with POWERGRID. The status is as below:
S.
No.
Utility
SubNature
stns/Switchya defects
rd
where
PLCC system
is installed.
1
UPPTCL
220
S/s
2
UPPTCL
400
kV PLCC panels for UPPTCL
400 kV Azamgarh
Sultanpur S/s
kV
of Utility
Current status informed
who
is by concerned Utility
responsi
ble
to
rectify
Panki PLCC
with UPPTCL
protection coupler
for 220 kV Bithoor,
220
kV
Chhibramau
and
220
kV
RPH
feeders
is
not
available.
New panel for 220 kV
Bithoor-Panki,
220
kV
Chibramau- Panki and 220
kV RPH- Panki lines are
under procurement and are
expected by March’15.
OCC advised UPPTCL to
ensure early PLCC system
normalization.
400 kV Azamgarh lne: BPL’s
cabinet is expected to be
line, 220 kV NTPC
Tanda I & II and
220 kV Phoolpur,
ETL panel from
Sohawal end are
not available.
3
UPPTCL
400
kV (i) PLCC cabinet UPPTCL
Muradnagar S/s installed on 400 kV
Muradnagar- Panki
line
is
not
functioning.
(ii) PLCC cabinets
are not installed on
220 kV SahibabadI
&
II
and
Muradnagar – I & II
lines.
4
UPPTCL
400 kV & 220 PLCC system on UPPTCL
kV Bareilly S/s
220
kV
Shahjahanpur,
Dohna, C.B. Ganj
& Pantnagar lines
(ii) PLCC system of PTCUL
220 kV BareillyPantnagar
line
(pertaining
to
PTCUL)
is
defective.
5
UPPTCL
6
UPPTCL
7
UPPTCL
400 kV G. Noida PLCC system on UPPTCL
S/s
220 kV Sec-20,
Sec-62
&
R.C
Green
is
not
working.
220
kV PLCC system with UPPTCL
Moradabad S/s
protection coupler
on
220
kV
Moradabad - CB
Ganj line is not
available
400
kV PLCC system of UPPTCL
Muzaffarnagar
220 kV Shamli line
S/s
is not available.
received by August, ’14.
220 kV NTPC Tanda I & II
lines:
New
PUNCOM
Cabinets are expected to be
commissioned
within
2
months after receipt but
UPPTCL has not indicated
expected receipt.
220 kV Phoolpur lines: New
panel is expected by March,
‘15
220 kV Sohawal line: Spare
cabinet is being arranged to
replace defective panel but
expected time has not been
indicated.
OCC advised UPPTCL to
ensure restoration of all
defective PLCC system as
early as possible.
(i) The CVT & wave trap
require to be repositioned
then PLCC system for 400
kV Muradnagar-Panki line
will be made functional.
UPPTCL may give the
expected time frame.
(ii) UPPTCL may indicate the
expected time frame for
restoration of PLCC system
for 220 kV Sahibabad-I&II
and Muradnagar-I&II lines.
PLCC system for 220 kV
Shahjahanpur, Dohana &
C.B. Ganj by March’15.
PLCC system of 220 kV
Pantnagar line is defective.
Expected
restoration
by
March, 2015.
Action: PTCUL to ensure
early restoration.
(i) R.C. Green is radial and
hence it is not required.
(ii) For Sec.-62 and Sec.-20
Expected by March,’15.
PLCC cabinet with protection
coupler is to be arranged by
UPPTCL’s HQ, Lko.
UPPTCL is advised to
expedite early restoration.
Expected by Nov. ’14.
8
UPPTCL
9
UPPTCL
10
UPPTCL
11
UPPTCL
12
UPPTCL
220 kV Nara S/s
PLCC system of UPPTCL/
220
kV
Nara- PTCUL
Roorkee line is not
working.
LILO of Nara-Rishikesh was
done at Roorkee but PTCUL
has not installed PLCC
system at Roorkee.
OCC advised PTCUL to
ensure early installation of
PLCC system at Roorkee.
Action: PTCUL to ensure
installation of the same.
400 kV Sarnath PLCC system of POWERG (a) POWERGRID to restore
& the PLCC system of 400 kV
S/s
(a)
Sarnath- RID
Sarnath-Allahabad –I & II
Allahabad PG-I & II UPPTCL
lines ;
line,
(b) POWERGRID to also
(b)
Sarnathrestore 400 kV Sarnath –
Sasaram PG line
Sasaram line.
and
(c) Anpara-Sarnath
OCC advised POWERGRID
(L-3) &
to restore the above at
(d) Anpara-Sarnath
earliest.
(L-5) both (c) & (d)
(c) PLCC system for Sarnath
lines
are
of
– Anpara (L-3) by Nov.’14;
UPPTCL
are
(d) Panel for Sarnathdefective
Anpara
(L-5)
received,
commissioning expected by
October, ’14.
The PLCC system for 400 kV
400
kV PLCC system on UPPTCL
Gorakhpur-Azamgarh
line
400 kV GorakhpurGorakhpur/400
and for 220 kV system are
kV
Azamgarh Azamgarh link and
under
procurement.
220 kV lines
S/ss
UPPTCL may indicate the
expected completion time in
the next OCC meeting.
of
400 kV Kasara Defective
PLCC POWERG Representative
POWERGRID informed in
Mau
with
protection RID
103rd OCC meeting that
coupler of (a) Balia
- PGI - I and (b)
defects were found only in
Balia - PGI - II lines
Mau - Balia – I , channel-I of
needs
to
be
PLCC system which have
replaced
by
been
rectified
on
POWERGRID
10.09.2014.
220 kV Fatehpur PLCC
with UPPTCL
S/s
protection coupler
is available but
carrier inter-trip is
not functional.
Panel
received,
Service
Engineer
is
awaited,
commissioning expected by
Oct.,’14.
13
UPPTCL
220
kV 1. Commissioning 1.
Allahabad S/s
of PLCC panels at UPPTCL.
both ends of 220
kV Jhusi-Phoolpur
line (Panels are
available at both
ends).
2.
Enabling
of 2.
PLCC system on UPPTCL
220 kV AllahabadRewa Road-I & II,
(PLCC equipments
commissioned at
both ends)
14
UPPTCL
15
UPPTCL
16
UPPTCL
220
kV System is working UPPTCL
Harduaganj
- but
Protection
Hatharas line
coupler
is
not
provided
220
kV No carrier cabinet UPPTCL
Harduaganj
– is provided.
Khurja line
220
kV System is working UPPTCL
Harduaganjbut
protection
Atrauli line
coupler
is
not
provided
220 kV Bithoor – PLCC system on UPPTCL
Unnao line
220 kV BithoorUnnao line is not
available
220
kV PLCC system on UPPTCL
Chhibramau220
kV
Mainpuri line
ChhibramauMainpuri line is not
1. UPPTCL informed in 103rd
OCC meeting that the PLCC
system at both ends of 220
kV Phoolpur- Jhusi line is
expected to be restored by
Oct. ’14.
POWERGRID also informed
during 103rd OCC meeting
that LILO at Jhusi had been
done by UPPTCL on 220 kV
Allahabad-Phoolpur
line.
PLCC panel at Phoolpur
(earlier) was used at Jhusi
end.
Action:UPPTCL may ensure
providing of PLCC system
between 220 kV JhusiPhoolpur line.
2. UPPTCL informed in 103rd
OCC meeting has that the
PLCC panels are available
but Wave Traps are not
available. The wave traps
are expected to be supplied
by March, 2015.
POWERGRID
informed
during the 103rd OCC
meeting that UPPTCL have
also to provide Wave traps at
Rewa-I & II end and DP
relays on Rewa-I & II end
have also to be retrofitted by
UPPTCL for carrier inter trip
capability.
Action: UPPTCL may ensure
the provisions as intimated
by POWERGRID.
UPPTCL informed that the
requirement is included in
new tender. Supply expected
by March’15
by March’15.
UPPTCL informed that new
protection
cabinet
is
required.
by March’15
by March’15.
available
PLCC system of UPPTCL
lines L-2, L-3 & L-5
of UPPTCL
17
UPRVU
NL
Anpara TPS
18
UPRVU
NL
Obra ‘A’
19
20
UPRVU
NL
RRVPNL
Harduaganj TPS Restoration
of UPPTCL
PLCC system
400 kV GSS The problem in PGCIL
Jodhpur S/s
Protection channelI
of 400 kV
Jodhpur-Kankroli
feeder
from
Kankroli end of
PGCIL
21
RRVUNL
400 kV
STPS
22
NHPC
Tanakpur HPS
PLCC problem to UPPTCL
be resolved by
UPPTCL
Kota PLCC system with RRVPNL
protection coupler
for
220
kV
Gulabpura,
Sanganer
and
Morak feeders is
not working.
PLCC
speech POWERG
channel of 220 kV RID
Bareilly line and
132 kV Mahender
Nagar
to
be
restored
UPRVUNL in its status report
indicated that the action is to
be taken up by UPPTCL.
UPPTCL informed that that
PLCC system of L-5 by
Oct.’14
and
L-3
by
Nov.’14.(Pl. see at S.no.’9’
above.
UPPTCL may indicate the
status of L-2 and ensure
expediting L-3 & L-5.
UPRVUNL stated that the
completion time shall be
given by UPPTCL.
Action: UPPTCL may ensure
early restoration of PLCC
system at Obra ‘A’.
Status covered at Sl. No.14
above.
103rd OCC meeting that
during testing, line losses
were found very high, low
SNR problem and maximum
AGC was 20. POWERGRID
therefore decided to upgrade
ETL 41 to ETL 81 pannel. It
was further informed that
material has been supplied
and Service Engineer has
reached
at
site
on
17.09.2014
for
commissioning of the same.
220 kV KSTPS – Sanganer
line:RRVPNL informed that fault
in PLCC 2nd Channel is
rectified
and
protection
coupler is in working order;
220 kV KSTPS – Morak line:Commissioning work is in
progress and is likely to
complete by end Aug.’14;
220
kV
KSTPS–Silore
(Bundi) line & 220 kV Silore
(Bundi)–Gulabpura
line
(Formally 220 kV KSTPSGulabpura
line):Commissioning work is in
progress and is likely to
complete by end Aug.’14.
NHPC vide its letter dtd. 11th
July,’14
&
letter
dt.11.08.2014 intimated that
the PLCC speech channel of
these two lines have not
been rectified.
23
24
NHPC
SJVNL
Dulhasti HPS
NJHPS
BPL make PLCC POWERG
panels of 400 kV RID
DulhastiKishenpur line has
mal-operated many
times.
BPL
PLCC POWERG
Exchange is not RID
working due to
defective
cards
from POWERGRID
side.
Though
POWERGRID
attended the fault
in past but defects
still persists.
In 103rd OCC meeting
POWERGRID informed that
speech channel problem on
PLCC system between 220
kV Tanakpur-Bareilly line
had
been
rectified
on
10.08.2014.
As regards of PLCC system
between 132 kV TanakpurMahendernagar
line,
POWERGRID
requested
NHPC to provide supportive
documents for this to be
maintained by them.
NHPC may look into and
provide the same.
POWERGRID vide mail dtd.
14th July, ’14 informed that
the defects of malfunction of
PLCC speech channel had
been attended on 31st May,
’14 in association with BPL’s
Engineer. However, due to
heavy noise in a particular
card at Kishenpur, speech
communication could not be
established. However, the
data communication was
found working.
However, NHPC maintained
that problem still persists.
In 103rd OCC meeting,
POWERGRID informed that
defective cards are under
procurement from BPL and
shall be made operational
once cards will be made
available.
POWERGRID to expedite
the replacement.
Representative
from
103rd OCC meeting that new
PLCC panel has been
dispatched and expected at
site shortly. After receipt at
site, BPL Engineer will install
the same.
The latest status of rectification of PLCC system as above is as per information
provided by the utilities. The concerned Utility(s) are requested to ensure rectification
of the deficiencies at the earliest.
SE (O), NRPC informed that in 28th NRPC meeting, it was decided that all the deficiencies
would be rectified by end of March 2014. However utilities have not been able to meet the
timeline given by NRPC. SE (O), NRPC requested utilities to expedite the rectification of
deficiencies.
(ii) SE (O), NRPC stated that the Hon’ble Central Electricity Regulatory Commission’s order
dtd. 21.02.2014 in the Petition no. 220/MP/2012 was placed as item 6.2 (ii) in the agenda
notes of the 98th OCC meeting held on 22.04.2014 for information and compliance by NRPC
members. Members were briefed about the contents of the order and were requested to
comply with the same.
SE (O), NRPC requested SLDCs and CTU to intimate if any action has been taken by them as
empowered under Para no. 27 (d) of CERC’s Order in Petition no. 220/MP/2012.
Till 102nd OCC meeting, Action plan for rectification of deficiencies in the protection system
observed was submitted by DTL, UPRVUNL, UPPTCL, RRVPNL, RRVUNL (Only in respect of
Suratgarh STPS), PTCUL, HPSEB Ltd., HVPNL, PSTCL, BBMB, NHPC, NTPC and HPGCL
(PTPS unit# 5 & 6, 7 & 8).
Subsequently, RRVUNL (Kota TPS) had also submitted the Action Plan/Action taken under
Category ‘A’ and Category ‘B’ on 26.08.2014. NPCIL (for NAPS) have also submitted the
latest status on 23.08.14 but not in the said format.
As per the directions of Hon’ble Commission in the order dated 21.02.2014 in the Petition no.
220/MP/2012, to submit report within 45 days of the end of every Quarter, Status Report on
progress of rectification of deficiencies had been submitted on 22.08.2014.
Subsequent to submission of 1st quarterly Status Report on progress of rectification of
deficiencies by NRPC Secretariat to Hon’ble Commission, UPPTCL, BBMB, NHPC,SJVNL,
UPRVUNL, RRVUNL and HPSEBL have submitted the progress report on their Action plan for
rectification of deficiencies in the protection system as at the end of August, 2014.
HPGCL (Khedar TPS), UJVNL (Khodri HPS), PSPCL (Ropar TPS), PSTCL and PDD, J&K
(Pampore, Gladni & Zainakote HPSs) have not submitted the Action Plan.
SE (O), NRPC requested all members to continue submitting Action Plan & ATR in the
format prescribed in 99th OCC Agenda notes on monthly basis so that progress can be
assessed.
(iii) Protection audit of intra-state system / balance system not covered in Basic
Protection Audit.
SE (O), NRPC stated that in the NRPC meeting held on 30th November, 2012, it was
decided that States would initiate process of third party protection audit for their system.
Further, it was also decided in the 82nd OCC meeting that by 15th January, 2013, all
SLDCs would furnish list of sub-stations and switchyards in their state for which third party
protection audit is required to be done. Based on information submitted by
representatives of various utilities, latest status in this regard is given in Annexure-IV.
It may be seen that:

Some of the Utilities like BBMB, RRVPNL, RRVUNL, PSTCL, PSPCL, UPPTCL and
UPRVUNL have placed order for third party protection audit to CPRI. The work has
been completed for RRVPNL & RRVUNL and is underway for other utilities. These
utilities were requested to share draft/final report with Protection sub-committee, as
and when available.
 Protection audit has already been carried out for NHPC (for Baira Siul HEP), APCPL
(for Indira Gandhi STPS, Jhajjar) and NPCIL (for RAPP) by the team of protection
experts constituted by NRPC. In case of HVPNL and DTL, audit had been carried out
at four sub-stations each. Protection audit of one sub-station/switchyard each of
PTCUL, HPSEB Ltd and HPGCL (DCRTPP) has also been carried out by teams of
protection experts constituted by NRPC Secretariat. Further teams would be
constituted based on request received from constituents.
 PDD (J&K) and Electricity Deptt., UT Chandigarh have so far not submitted any
information as to how they plan to get the protection audit done for their system not
covered in Basic Protection Audit. These Utilities are requested to plan protection
audit for their system at the earliest.
Recommendation No. “9.3” regarding healthiness of defense mechanism
“All STUs should immediately enable under frequency and df/dt based load shedding
schemes. Central Commission should explore ways and means for implementation of
various regulations issued under the Electricity Act, 2003. Any violation of these
regulations can prove to be costly as has been the case this time. RPCs need to take
up the matter for compliance. In case non-compliance persists, POSOCO should
approach Central Commission.”
SE (O), NRPC drew attention of members towards following decisions taken at NRPC fora:

All STUs would ensure load relief as per target and the settings of UFR and df/dt relays
would be as agreed in NRPC. Self-certification to this effect was to be done by 31st
October, 2012.

Mock exercise for healthiness of UFRs was to be carried out by utilities themselves on
quarterly basis and report would to be submitted to NRPC Secretariat and NRLDC. This
exercise was to be done at the end of March, June, September and December months
of every year.

All STUs would procure 10% spare UFRs and df/dt relays so as to replace defective
ones quickly. It was also decided that if a deficiency is observed in operation of UFR or
df/dt relay during inspection, corrective action shall be taken within15 days.
Members indicated following status in respect of various issues listed in the agenda notes.
(i)
Quarterly self- certification
The status of Quarterly Self Certification in respect of Mock Testing of UFRs & df/dt
Relays by Utilities submitted so far is as under:S. No.
1
2
3
4
5
6.
7.
UTILITY
HPSEB Ltd.
DTL
RRVPNL
UPPTCL
PSTCL
BBMB
PTCUL
STATUS
Submitted for quarter ending June, 2014
Submitted for quarter ending June 2014
UT Chandigarh and PDD, J&K have not complied with the requirement as above and should
submit self-certification & report of Mock exercise. No representative from UT Chandigarh
and PDD, J&K was present in the meeting.
SE (O), NRPC requested all Members to carry out the Mock Testing of UFRs and df/dt
relays for the quarter ending September, 2014 in the first week of October, 2014 and
submit the Certificate to NRPC Secretariat and NRLDC before the next OCC meeting.
(ii)
Procurement of 10% spare UFRs and df/dt relays
The status as in regard to procurement of 10% spare UFRs and df/dt relays is as under:


RVPNL, UPPTCL, DTL, PSTCL, HVPNL, HPSEB Ltd. and PTCUL have confirmed
that they have 10% spare relays.
No information is available from UT Chandigarh.
In the 28th TCC and 31st NRPC meetings held on 23rd and 24th July, 2014,
representative of PDD J&K had intimated that funds have been made available by
the State Government and procurement action has been initiated. He had
indicated the completion target of October, 2014. No representative of PDD, J&K
attended this OCC meeting
Recommendation No. “9.4” regarding implementation of FGMO/RGMO.
“All out efforts should be made to implement provisions of IEGC with regard to
governor action. Central Commission needs to look into ways and means to hasten
implementation of provisions of IEGC including that on governor action. POSOCO need
to take up the matter with Central Commission.”
A statement indicating implementation of FGMO/RGMO (as furnished by generating
companies) has been compiled and is enclosed as Annex-V.
S.E (O), NRPC stated that it may be seen from above mentioned Annex that following units/
generating stations have not implemented RGMO/FGMO:
(i)
HPGCL
2 x 300 MW at DCRTP, (Yamuna Nagar)
(ii)
JKPDC
3 x 150 MW at Baglihar HEP
(iii)
UPRVUNL
Anpara TPS
Obra TPS
3 x 210+1X500 MW
4 x 200 MW
Representatives of UPPTCL and HVPNL intimated the latest status of implementation of
RGMO/FGMO by UPRVUNL & HPGCL as below:
Utility
Status of implementation of RGMO/FGMO
UPRVUNL
Obra TPS
Anpara TPS
HPGCL
DCRTP,
Yamuna Nagar
Unit nos. 10, 11, 12 & 13 shall be put on RGMO after
completion of R&M. # 10 & 11 are presently under R&M
up to 03/15 & 06/15 respectively. # 12 & 13 will be
taken under R&M after revival of # 10 & 11.
Unit no. 4:- it is expected during O/H in October, 2014.
Unit nos. 1, 2 & 3:- Offer from M/s Keltron and M/s
BHEL is awaited.
HPGCL vide its letter dt. 08.08.2014 informed that Load
v/s factory curve for RGMO has been configured in the
existing software logic of DEH system in Unit- II. RGMO
shall be put in service under supervision of OEM after
checking & testing of RGMO curve in line with CERC
recommendations
Off-line and On-line
during
overhauling of Unit- I & II scheduled in Oct. & Dec. 2014
respectively.
The status of Baglihar HEP units could not be updated due to absence of representative from
JKPDC attended the meeting.
SE (O), NRPC advised SLDCs of U.P. and Haryana to ensure that RGMO/FGMO is made
operational in units in their control area.
Recommendation No. “9.7” regarding installation of adequate static and dynamic
reactive power compensators.
“In order to avoid frequent outages/opening of lines under over voltages and also
providing voltage support under steady state and dynamic conditions, installation of
adequate static and dynamic reactive power compensators should be planned.”
(A) SE (O), NRPC informed that DTL had intimated in the 84th OCC meeting that the study for
requirement of capacitors and reactors at 220 kV level for NCR was being conducted by CPRI.
In the 101st OCC meeting, representative of DTL intimated that CPRI has already finalized
draft report wherein it was indicated that in Delhi system the reactive power compensation is
more than adequate. A meeting in this regard was held wherein CPRI was advised to look into
the high voltage problem for which data has already been submitted and it would take another
month to finalize the comprehensive report. In the 102nd meeting, he intimated that final report
has been received from CPRI and is being examined. In this meeting, he intimated that
final report of CPRI has indicated requirement of some reactors in Delhi system.
(B) SE(O), NRPC further intimated that based on the studies carried out by POWERGRID for
identifying compensation required in intra-State network at 220 kV level, following reactors at
400 kV were approved in the 29th Meeting of NRPC held on 13.09.2013:S.No.
1
2
3
4
5
6
7
8
9
10
11
SUBSTATION
HINDAUN
PANCHKULA-PG
SULTANPUR
GORAKHPUR(UP)
SONEPAT-PG
MANESAR
KAITHAL
KANPUR
JAIPUR(S)
BASSI
MERTA
MVAr
125
125
125
2X125
125
125
125
125
125
125
125
Implementation by
RVPNL
POWERGRID
UPPTCL
UPPTCL
POWERGRID
POWERGRID
POWERGRID
POWERGRID
POWERGRID
POWERGRID
RVPNL
Representative of POWERGRID had intimated in the 31st NRPC meeting held on 24.07.2014
that LoA for procurement of the above mentioned reactors was expected by October, 2014
and Completion by March, 2016. This is for information of the Members.
(C) SE (O), NRPC intimated that in order to resolve the issue of reactors at Sultanpur and
Gorakhpur, NRPC in its 30th meeting held on 28.02.2014 had decided that a meeting will be
held at NRPC Sectt. wherein POWERGRID will share the results of their study with UPPTCL,
NRPC sectt. and NRLDC. Accordingly, the meeting was held on 11.07.2014 wherein
POWERGRID agreed with the contention of UPPTCL that reactors at Sultanpur and
Gorakhpur substation were not required in view of addition of 427 MVAR reactors in the
vicinity of these sub-stations. It was also agreed that POWERGRID will approach Standing
Committee for Power System Planning in NR for approval of change in the earlier proposal.
Representative of POWERGRID intimated that the status will be informed in the next
meeting.
(D) SE (O), NRPC intimated that in the 30th NRPC meeting held on 28.02.2014, RRVPNL had
intimated that the proposal for procurement of reactors for Hindaun and Merta was under their
Board of Director’s approval. In the 100th OCC meeting, representative of RRVPNL had
intimated that the proposal has been cleared by their Board of Director’s and procurement
action has been initiated. In the 31st NRPC meeting held on 24.07.2014, RRVPNL intimated
that the NIT will be issued shortly. In this meeting, representative of RRVPNL intimated
that Bid documents were under preparation.
(E) Status of earlier approved reactors
SE(O), NRPC intimated that the status of 17 reactors at 15 grid sub-stations (Gorakhpur,
Allahabad, Mainpuri, Hisar, Jullandhar, Amritsar, Kankroli, Nalagarh, Vindhyachal (NR bus),
Nathpa Jhakri, Dehar, Chamera-I, Parbati-II, Parbati-III and Rihand) including 6 reactors at
generating stations, approved by NRPC in its 15th meeting held on 24th December, 2009, is
as under:S. No.
5
6
7
Name of the substation
Gorakhpur
Allahabad
Mainpuri
Vindhyachal
(NR
bus)
Nathpa Jhakri
Dehar
Chamera-I
1x80 MVAr
2x63 MVAr
1x125 MVAr
8
9
Parbati-II
Parbati-III
1x125 MVAr
1x80 MVAr
10
11
12
13
14
15
Rihand
Jallundhar
Amritsar
Nalagarh
Hisar
Kankroli
1x 80 MVAr
1x125 MVAr
1x80 MVAr
1x125 MVAr
1x125 MVAr
1x125 MVAr
1
2
3
4
Bus reactor
approved
1x125 MVAr
1x125 MVAr
1x125 MVAr
2x125 MVAr
Status
Commissioned in January, 2013
Commissioned in October 2012
Commissioned in December 2012
commissioned
Expected in November, 2014
Expected in December, 2015.
NIT floated in July, 2014 ans
commissioning expected in 18 months
from July, 2014
There is no space at Parbati-III and as
such reactors will be installed at ParbatiII. Reactors at Parbati-II will be
commissioned along with the
commissioning of the project in 2017-18.
Expected in December, 2014
Commissioned on 31/03/2012
Representative of SJVNL intimated that installation of 1x80 MVAr reactor at Nathpa
Jhakri planned for November, 2014 will get delayed as the tender for GIS was
cancelled due to contractual problems and same has been re-tendered. He added
that bids would be opened shortly. He further intimated that completion will take
about 12 months after LoA (Commissioning likely by November, 2015). Members
noted the same.
Recommendation No. “9.9.2” regarding audit of dynamic stabilizing devices.
“An audit of devices such as HVDC, TCSC, SVC and PSS should be done
immediately to ensure that their stability features are enabled. Further, exercise of
PSS tuning should be planned and implemented. Settings of these dynamic
stabilizing devices should be reviewed at appropriate intervals.”
In the NRPC meeting held on 30th November, 2012, it was decided that
(i) All generating companies will tie up with OEM or a technical consultant to carry out
PSS tuning
(ii) Readiness for PSS tuning along with period in which they intend to carry out this
exercise will be intimated to CTU and NRPC within 2 months.
(iii) Schedule for PSS tuning will be finalized in the OCC as it involves unit shutdown.
(iv) After PSS tuning, generating companies will submit results of step response test to
NRLDC, CTU and NRPC.
(v)
Karcham Wangtoo HPS will share their experience of PSS tuning with NRPC
constituents in the OCC meeting (JPVL had made a presentation on the PSS tuning
done on their machines at Karcham Wangtoo HPS during 83rd OCC meeting).
As decided in the 26th TCC & 29th NRPC meetings, all generating companies were
requested to submit the details of PSS tuning/testing last carried out and results thereof
in their generating units to NRPC Secretariat by 28th Sept 2013. This information has
been received from PSPCL, THDC, APCLP, NTPC, BBMB, NPCIL, HPSEBL, PSPCL,
RVUNL, SJVNL, UPRVUNL (Obra-‘A’ & ‘B’) and NHPC.
DCRTPP (Yamunanagar) vide letter dt. 08.08.2014 has informed that AVR installed is of
“Electrical Equipment Factory” of “Hubei University of technology” supplied by SEC,
China. The issue of PSS tuning was pursued with SEC, China who have advised to take
up the matter with OEM and then revert back accordingly.
Other generating companies viz. HPGCL, THDC and IIPs are requested to submit
the information at an early date.
Further, based on deliberations in the 27th TCC & 30th NRPC meetings, a group
comprising of one member each from NRPC secretariat, CTU, NRLDC, IPGCL, NTPC,
NHPC and BHEL had been constituted to analyse the data of PSS tuning received from
various generating stations.
First meeting of the group was held on 16th July, 2014 in NRPC. TCC/NRPC were briefed
about deliberations in the meeting of this group. Views of NTPC have also been
received. S E (O), NRPC intimated that second meeting of the group was held on 5th
September, 2014 and report of the group would be submitted in due course. Members
noted the status.
Recommendation No. “9.14” regarding strengthening of Intra-State transmission
system.
“Intra-State transmission system needs to be planned and strengthened in a better
way to avoid problems of frequent congestion.”
SE (O), NRPC stated that In the NRPC meeting held on 30th November, 2012, it was
decided that SLDCs should give half yearly feedback to STU regarding bottlenecks,
constraints and overloading in the State transmission network for proper transmission
planning. This exercise was to be completed by 10.10.2012 and thereafter repeated
regularly at half yearly intervals i.e. on 1st January and 1st July of every year. In the 82nd
OCC meeting, S.E. (O), NRPC had emphasized that this exercise has to be done by
SLDCs as they get better visualization in control rooms. All SLDCs were requested to
submit copy of SLDC’s advice to their STUs, even if no constraints were observed.
Latest Status of identifying bottlenecks in intra-State system is as under:End of 2012/beginning Mid of 2013
of
End of 2013/Beginning Mid of 2014
of
2013
2014
Completed by SLDCs of
Delhi, Punjab, Rajasthan
Completed by SLDCs
of Delhi, Haryana,
Himachal Pradesh,
Punjab, Uttrakhand,
Uttar Pradesh and
Rajasthan
Completed by SLDCs
of Haryana, Punjab,
Rajasthan,
DTL,
HPSEBL, Uttarakhand
& U.P.
SLDCs
of
Haryana,
Punjab
and
Uttarakhand.
have informed
that
exercise
has
been
Not done by SLDCs Not done by SLDC Not done by SLDC of completed.
However, NRPC
of U.P., Haryana, of J&K.
J&K.
Sectt is yet to
J&K, Uttarakhand
receive copy of
the letter sent
by these SLDCs
to their STU.
This may be
sent to NRPC
Secretariat.
Representatives of Haryana, Punjab and Uttrakhand intimated that they have
identified the bottlenecks in their systems as at the end of June, 2014 and have sent
to their STUs. Representative of DTL intimated that they will take up the exercise in
October, 2014. Representative of UPPTCL intimated that there are no major changes
in their system than the exercise done at the beginning of 2014. Representative of
HPSEBL intimated that the exercise has been done and their observations are being
finalized. S.E (O), NRPC requested all SLDCs to take up/ complete this exercise as at
the Mid of 2014 and send a copy of the recommendations made to their STUs to
NRPC Secretariat. Members agreed to this. S.E (O), NRPC also requested all STUs for
prompt corrective action on the constraints intimated to them by their SLDCs. No
representative of SLDC of J&K present.
Recommendation No. “9.18” reinforcement of system study groups.
“There is need to reinforce system study groups in power sector organizations to
analyze the system behavior under different network status/ tripping of lines/outage
of generators. Where these do not exist, these should be created.”
SE (O), NRPC informed that this recommendation stand implemented except in PDD, J&K.
In the 92nd OCC meeting, representative of J&K stated that he would revert back on the
issue but since then no information is available from PDD J&K.
7. Recommendation of Enquiry committee for a partial grid disturbance on 2nd January,
2010:
SE (O), NRPC stated that from the Action Plan as recommended by Enquiry committee for
a partial grid disturbance on 2nd January, 2010, presently the focus is on the Pollution
Mapping. List of locations with and very high level of pollution emerging out of First and
Second pollution measurements was informed in the 82nd OCC meeting.
He added that Eight measurements of pollution were taken at all locations between April,
2012 and d February, 2014. In the 101st OCC meeting, representative of POWERGRID had
had made a presentation draft report from CPRI. Highlights of the report were part of the
minutes of the 101st OCC meeting.
POWERGRID intimated that final report of Pollution Mapping from CPRI is expected
by October, 2014.
8.0 Installation of Shunt Capacitors.
8.1 Progress of installing new capacitors and repair of defective capacitors:
The updated status of installation of new capacitors and revival of defective capacitor up to
31st August, 2014 by State constituents is enclosed at Annex-VIA and Annex-VIB.
8.2 Target for installation of capacitors during 2014-15
SE (O), NRPC stated that based on studies carried out by NRLDC, the target for installation
of shunt capacitors at 11 kV and above, were approved by OCC in its 100th meeting as
additional requirement of capacitors during 2014-15. This additional requirement with the
modification that Punjab’s requirement will be 356 MVAR against 600 MVAR has been
approved by NRPC in its recently concluded 31st meeting held on 24th July, 2014. The
additional requirement as approved by NRPC is tabulated below:-
State
Load Load
(MW) MVAR
Punjab
9000
Haryana
8019
Uttar Pradesh
12465
Uttarakhand
1675
Delhi
5403
Jammu & Kashmir 2250
Himachal Pradesh 1500
Rajasthan
10500
2349
2691
4097
550
645
740
487
3447
Load
P.F.*
Capacitor
Modelled
(At 132kV
and
above)
As Per
study
capacitor
required (At
132kV and
above)
Total Capacitors
installed in the state
as on 31.12.2013
(Installation of HT
Shunt Capacitors
(rated 11 kV and
above))
0.97
0.95
0.95
0.95
0.99
0.95
0.95
0.95
3003
227
1367
0
0
0
628
2963
356
2796
2611
600
1290
640
287
422
9586
5141
6932
313
3721
252
838
5150
SE (O), NRPC added that in the 101st OCC meeting, representative of HPSEBL had stated
that the target for H.P. was on higher side and the requirement will be assessed in a
meeting of their field officers and there after they will discuss the requirement with NRLDC
and resolve the issue within two weeks. In 102nd meeting, he stated that since their
Planning Wing was being consulted on additional requirement and the same will be
finalized shortly and discussed with NRLDC. In this meeting, representative of HPSEBL
stated that the requirement is still being sorted out internally. SE (O), NRPC stated
that half of the financial year is already over and if the requirement has yet to be
finalized then HPSEBL will not be in a position to procure and install the capacitors
in time. As such, he advised representative of HPSEBL to take this target as final and
proceed with the procurement and installation. Representative of HPSEBL agreed to
this.
Representative of DTL stated that final report of the study for requirement of capacitors and
reactors at 220 kV level for NCR entrusted to CPRI has been received which indicates no
additional requirement of shunt capacitors for 2014-15 in Delhi but suggests relocation of
existing shunt capacitors as well as requirement of some reactors. Representative of DTL
agreed to forward the report to NRPC secretariat within a week. SE (O), NRPC advised the
representative of DTL to depute their officers to NRLDC and finalise the issue of
requirement/ relocation.
SE (O), NRPC stated that there is no substantial improvement in capacitor addition in
first 5 months of 2014-15 and requested all members to take action for expeditious
procurement/installation of capacitors based on approved targets for 2014-15 as
above. He also requested members to intimate the quantum of capacitors likely to be
added during current financial year, by the next meeting.
9. Approved System Protection Schemes (SPSs) in Northern Region
9.1 SE (O), NRPC requested members to update the status.
A) Mock testing of SPS for Interruption of import by NR at 765 kV Agra (from WR), was
done on 03rd April, 2014. Based on the report received from the concerned utilities it was
found that scheme is not functional at 09 out of 14 sub-stations. In a separate meeting
taken by MS, NRPC on 21st July, 2014 it was decided that POWERGRID would rectify the
deficiencies and would report about the functionality of the scheme within a week.
As per the information submitted by POWERGRID the scheme has been made functional in
08 sub-stations namely Modipuram, Mainpuri, Nara, Merta, Mohali Jamsher, Panipat and
Narwana. In the same letter, POWERGRID had informed that due to non-availability of
radial feeder at 220 kV Kota sub-station of RRVPNL, the scheme could not be connected.
In the 102nd OCC meeting, representative of RRVPNL had informed that the feeders
earmarked for the SPS are normally kept radial and scheme can be wired up to the
designated feeders at Kota sub-station.
In this meeting, representative of POWERGRID intimated that on contacting
Sakatpura sub-station for making the scheme functional, they were informed by the
staff there that no radial feeder is available. SE (O), NRPC requested RRVPNL to
intimate the exact position. Representative of RRVPNL stated that he will revert back
on this by 22.09.2014. However, the same was not received till issuance of these
minutes.
B) SE (O), NRPC informed that based on the intimation from POWERGRID in the 100th OCC
meeting that ICT of 500 MVA capacity to be added at Bassi sub-station has reached at site
and was likely to be commissioned by August, 2014, it was decided to keep on hold the
installation of SPS at Bassi for the time being. In the 102nd OCC meeting, representative of
POWERGRID had intimated that ICT would be commissioned by 31.08.2014. In this
meeting, representative of POWERGRID intimated that ICT was expected to be
commissioned by the end of September, 2014.
C) SE (O), NRPC informed that keeping in view overloading of ICTs at Meerut, OCC had
decided in its 90th & 91st meetings, that POWEREGRID would install the SPS at Meerut.
Representative of UPPTCL was requested to identify radial feeders at Meerut that can
provide relief of 300 MW and intimate the same to POWERGRID. Since some of the
feeders identified by UPPTCL and intimated vide CE(SLDC)/SA/SPS dated 15.02.2014
were not connected via fiber optics communication system, OCC in its 98th meeting had
requested UPPTCL to submit those feeders where optical fibre communication link is
available and which are radial in nature. In the 99th OCC meeting, UPPTCL had intimated
that fiber optics communication was not available for all the 07 outgoing feeders at 220 kV
level from Meerut and only Gajraula feeder was radial. However, PLCC communication was
working satisfactorily for all feeders. It was decided that SPS for ICTs at Meerut be
implemented by POWERGRID using PLCC communication and UPPTCL would
continuously monitor the loading on ICTs. In the 101st OCC meeting, POWERGRID had
intimated had that SPS using PLCC communication will not be reliable. However,
POWERGRID was requested to at least implement SPS on 220 kV Gajraula feeder and
POWERGRID had agreed for the same. In the 102nd OCC meeting, POWERGRID had
intimated that ICT at Meerut would be installed by October, 2014 and after that SPS would
not be required. Representative of NRLDC had stated that in view of the loading conditions
in Meerut, the requirement of SPS would still be there. SE (O), NRPC had requested
POWERGRID to expedite the implementation of the scheme.
In this OCC meeting, representative of POWERGRID informed that ICT at Meerut,
Bassi and Allahabad would be commissioned by September, 2014 and thereafter SPS
would not be required. Representative of NRLDC maintained that in view of the
loading conditions in Meerut, the requirement of SPS would still be there. SE (O),
NRPC requested POWERGRID to expedite the implementation of the scheme.
Representative of POWERGRID intimated that for implementation of SPS on 220 kV
Gajraula feeder, quotation has been sought from M/S ABB and on receipt of the
same, the work is likely to be awarded.
Representative of UPPTCL raised the issue of 4-5 major breakdowns and damage to
their equipments in the recent past due to opening of Modipuram feeder by
POWERGRID from Meerut on the instruction of NRLDC without informing them.
Representative of POWERGRID clarified that their operators at Meerut invariably
intimate the UPPTCL’s sub-station staff about the overloading of ICTs and about the
opening of Modipuram feeder. However, it was agreed that now onwards prior to the
opening of feeder, POWERGRID would also intimate telephonically to Shri Kavindra
Singh, Technical advisor, UPPTCL on his mobile No. 09412749803.
D) SE (O), NRPC stated that in respect of finalisation of backing down of generation at Dadri
TPS and Dadri CCGT for implementation of SPS for tripping of multiple lines from 400 kV
Dadri, in the 101st OCC meeting, NTPC had intimated that SPS would be implemented by
31.12.2014. In this OCC meeting, representative of NTPC informed that the
implementation of SPS was on schedule.
The latest revised target dates as intimated during the 103rd OCC meeting are given in
Annexure-VII.
9.2 SE (O), NRPC informed that In the 93rd OCC meeting, UPPTCL had intimated that in
respect of SPS at Rosa TPS, that earlier SPS was envisaged for one unit with connectivity
at 220 kV level but the scheme was under revision for four units with connectivity at 400 kV
level. In the 96th OCC meeting, UPPTCL had intimated that 2 Nos. new 220 kV outlets from
Rosa TPS were expected to be commissioned by April, 2014. There after the SPS would be
finalised by Rosa TPS authorities. Since, the logic for SPS can be revised any time, OCC
had advised that Rosa TPS authorities should finalise the scheme urgently without waiting
for new outlets to be commissioned. In the 98th OCC, Rosa TPS informed that signal is
being continuously generated showing the availability of transmission lines. Based on the
availability of transmission lines, manual action is being taken for backing down or so. OCC
was of the view that manual action is slow and it would not suffice in case of tripping of
lines. The signal showing the availability of transmission lines could be utilized for
implementation of SPS. OCC had requested Rosa TPS to implement the SPS
expeditiously. In the 100th OCC meeting, UPPTCL had intimated that SPS at Rosa TPS
would be implemented by September, 2014. In the 102nd OCC meeting, UPPTCL had
informed that the SPS for Rosa was under implementation and would be completed within a
month. In this meeting, representative of UPPTCL intimated that the SPS for Rosa
was would be implemented by the end of September, 2014.
9.3 SPS for tripping of transmission lines connecting NAPS.
SE (O), NRPC informed that on receipt of comments from UPPTCL in the 74th OCC
meeting on two logics proposed by NRLDC in the 69th OCC meeting and subsequent
examination, it was decided in the 75th OCC meeting that UPPTCL shall implement the SPS
for NAPS as per their comments and also taking care of tripping of Mainpuri- Etah line.
Since the decision taken in 75th OCC meeting till the 97th OCC meeting, UPPTCL has
maintained all along that that they were not finding the bidders despite tendering and retendering many times. In the 98th OCC meeting, UPPTCL had informed that due to change
in network configuration, the conditions for implementation of scheme have changed. It was
further informed that scheme would be installed at Etawah and Harduaganj by 15.05.2014.
In the 100th OCC meeting, UPPTCL had intimated that SPS scheme has been finalized. In
101st OCC meeting, UPPTCL had intimated that finalized SPS will be implemented within
03 months by the Transmission South wing (Agra wing). In this meeting, representative
of UPPTCL intimated that SPS for NAPS is expected to be implemented by
31.12.2014.
9.4 Mock Testing of SPS meant for contingency of Mundra-Mahendergarh HVDC.
SE (O), NRPC informed that Mock testing of SPS meant for contingency of MundraMahendergarh HVDC line was carried out on 24.12.2013. The load relief obtained during
the Mock Testing was quite low for Punjab and to a lesser extent from Haryana and Delhi
than the expected load relief. The issue was discussed in the 98th & 99th OCC meetings
and it was decided that: PSTCL would identify and intimate additional feeders to be disconnected through
SPS during lean periods in Punjab.

APL would be advised to check the scheme at Nuna Majra and Malerkotla.
 Once APL gives confirmation about activating the scheme at Shamli (U.P.), a
comprehensive mock test would again be carried out.
 DTL would review and revert back on its feeder for SPS, as the existing feeders
would get supply from alternate source, once LILO is completed at Mundka.
In the 100th OCC meeting, PSTCL had intimated that additional two feeders from Malerkotla
sub-station namely (i) 66 kV Malaud with lean period load of 06 MW and peak period load
of 20 MW and (ii) 66 kV Siarh with lean period load of 06 MW and peak period load of 20
MW have been identified and intimated to POWERGRID. OCC had advised PSTCL to send
these details to Adani Power Ltd.
PSTCL and DTL informed that the above details have been sent to Adani Power Ltd.
SE (O), NRPC further added that a second Mock Testing of SPS for Mundra-Mahendergarh
HVDC was carried out on 08.07.2014 wherein certain deficiencies were observed. A
detailed report of the Mock test was enclosed as Annex- VIII of the agenda notes.
It could be seen from the Annex-VII that (i) a number of feeders in Haryana & Rajasthan are
not radial (ii) number of counters increased are either more or less than envisaged for
certain feeders in all States except in Haryana and (iii) the load relief that would have been
available if SPS had operated on the day of testing was much lesser than envisaged in
Punjab, Rajasthan and UP.
In the 102nd OCC meeting (i) Haryana and Rajasthan had informed that the feeders were
being normally kept in radial operation (ii) UPPTCL and RRVPNL were requested to check
the relays as counter increased were more than the envisaged (iii) APL was requested to
check the scheme at 220 kV Shamli s/s of UPPTCL for less increment of the counter than
envisaged and (iv) DTL was advised to check the system at their end. If no problem is
detected then scheme for this particular sub-station would again be tested.
In this meeting, (i) Representative of DTL informed that problem in cable was noticed
and the same has been rectified (ii) Representative of RRVPNL stated that the issues
with regard to excess counter increment have been referred to the concerned
officials in protection wing (iii) Representative of APL stated that he will convey
about less increment of the counter than envisaged at 220 kV Shamli s/s of UPPTCL
to the concerned officers in APL.
9.5 Implementation of SPS for Rampur HEP.
SE (O), NRPC stated that based on the recommendation of the 101st OCC meeting, NRPC
in its 31st meeting held on 24.07.2014 had approved the revised SPS for Karcham
Wangtoo-Rampur-NJPC complex as under:Case
Contingency
Action
Case1A
Load on any of the lines at Jhakri or
Rampur towards Nalagarh exceeds 850
MW.
Trip 01 Unit of KW HPS,
AND
{(01 unit at Jhakri and 1
unit at Rampur HEP)
OR
(4 units
HEP)}
Case1B
Tripping of 400
interconnecting line
kV
NJHPS-Rampur
at
Rampur
Trip 01 Unit of KW HPS,
AND
01 unit at Naptha
Jhakri(This
will
necessarily
lead
to
tripping of one unit of
Rampur HEP)
Case2
400 kV bus voltage at KWHPS drops
below 395 kV
Trip 02 Units of KWHPS
Case3
Any two lines of NJHPS or Rampur HPS
trips
Trip 02 Units of NJHPS,
02 Units of Rampur HPS
and 02 units of KWHPS
Case4
Both 400 kV KWHPS-Abdullapur lines at
KWHPS trips
Trip 02 Units of KWHPS
SE (O) requested SJVNL to intimate status of implementation of the scheme.
Representative of SJVNL intimated the SPS has been implemented at KWHPS and
NJHPS. He added that the scheme would be implemented at Rampur HPS in the
coming lean season.
10.
Revised UFR based automatic load shedding scheme.
10.1
Status of implementation.
SE (O), NRPC informed that revised UFR based automatic load shedding scheme (as
agreed in the 2nd meeting of National Power Committee held on 16th July, 2013) was agreed
to be implemented in the 89th OCC meeting. This revised UFR based automatic load
shedding scheme was also approved by NRPC in its 29th meeting. As decided in the OCC
meeting, loads to be shed by each State/ UT at all the four stages (stage-wise) were
worked out by NRPC Secretariat and communicated to heads of STUs and SLDCs vide
FAX dated 31.07.2013 as well as to the members of OCC through agenda notes. The
details are as under:
Peak Met during 2012‐13 (MW) (Source:CEA)
S.No. State/UT
1 Chandigarh
2 Delhi
3 Haryana
4 Himachal Pradesh
5 Jammu & Kashmir
6 Punjab
7 Rajasthan
8 Uttar Pradesh
9 Uttarakhand
Total
Load shedding Target for four stages (MW)‐ Based on maximum load on the feeders
49.2 Hz
340
5642
6725
1672
1817
8751
8515
12048
1674
47184
16
258
308
77
83
400
390
551
77
2160
49.0 Hz
16
259
309
77
84
402
392
554
77
2170
48.8 Hz
16
262
312
78
84
406
395
559
78
2190
48.6 Hz
16
263
314
78
85
408
397
561
78
2200
DTL, PSTCL, HVPNL, HPSEB Ltd, PTCUL, RRVPNL and UPPTCL had informed that the
revised scheme has been fully implemented.
However, RRVPNL had installed rotational load shedding i.e four feeders in rotation at one
sub-station whereas NRPC had already decided that rotational load shedding is not to be
installed. Representative of RRVPNL had agreed in the 101st OCC meeting that RLSS will
be withdrawn. Recently, RRVPNL has informed that the rotational scheme at all locations
has been converted into flat frequency relay based scheme. The Representative from
SLDC, Rajasthan confirmed in this meeting that all rotational schemes have been
replaced into flat and hence UFRs at all locations are flat type.
UT Chandigarh has informed that first two stages (49.2 & 49.0 Hz) have been implemented
and remaining scheme would be implemented after delivery of the relays. No further
details were available as no representative of UT Chandigarh attended the meeting.
There is no scheme of UFR based automatic load shedding scheme in J&K. However,
PDD, J&K had intimated in the PSC meeting held on 12.02.2014 that their proposal in this
regard has been approved by State Govt. In the recently concluded 31st NRPC meeting
held on 24.07.2014, representative of J&K intimated that funds have been made available
now by the State Govt. and they have initiated the procurement process. Further, he had
also intimated that UFRs are likely to be installed by October, 2014. No further details
were available as no representative of PDD J&K attended the meeting.
Latest status of implementation of revised UFR based automatic load shedding scheme as
intimated in the 103rd OCC meeting is enclosed as Annex-VIII.
Since the Revised UFR based automatic load shedding scheme has been fully
implemented by major constituents, OCC decided that this item be dropped from the
Agenda of the OCC meetings. The matter will be continued to be pursued with
Chandigarh and J&K.
10.2
Location of df/dt relays
Further to implementation of revised setting of UFRs at frequency stages at 49.2 Hz., 49.0
Hz., 48.8 Hz. and 48.6 Hz. respectively, SE (O), NRPC had requested all STUs in the
102bd OCC meeting to furnish the installation details of df/dt relays with the setting (i.e. rate
of change of frequency per second) with peak load relief on the said feeder on which it is
installed. He requested that the information should include the (i) Name of Organization (ii)
Name of s/s (iii) Name of feeder with voltage level on which df/dt relay is installed (iv) Basic
setting (i.e. 49.9 Hz.) (v) Stage of setting (i.e. 0.1Hz./sec or 0.2Hz./sec or 0.3 Hz./sec) (vi)
Peak Load Relief (vii) Make & model (viii) Type (static/Numerical) (ix) Scheme (Flat/RLSS)
(x) Healthiness and status of df/dt relay whether operative/non-operative (xi) last checked
(Name of Officer & Date on which checked).
SE (O), NRPC intimated that this information has been furnished by UPPTCL,
HPSEBL, RRVPNL, HVPNL, BBMB and DTL. He requested the representative of
PSTCL to furnish the above information expeditiously. Representative of PSTCL
agreed to send the details. No representative of UT Chandigarh and PDD J&K was
present in the meeting.
11.
High voltage problem associated with RAPS-5&6 (Agenda by NPCIL).
SE(O), NRPC informed that the issue of high voltage prevailing at Rajasthan Atomic Power
Plant- C (RAPP-C) was discussed in the 20th TCC/22nd NRPC meetings held on 28th/29th
July 2011 and thereafter in the 21st TCC/24th NRPC meetings held on 17th /18th November
2011. In line with aforesaid discussions, it was decided to constitute a committee with
members from POWERGRID Corporation of India Ltd (POWERGRID), Northern Regional
Load Despatch Centre (NRLDC), Rajastahn Rajya Vidut Prasaran Nigam Ltd (RRVPNL),
Nuclear Power Corporation of India Ltd (NPCIL) and Northern Regional Power Committee
(NRPC) to study the problem of high voltage affecting reliability of evacuation at RAPP 5 &6
(RAPP-C) and to suggest remedial measures. The committee submitted its report to NRPC
in its 26th meeting held on 13th July, 2014. NRPC approved the recommendations of the
committee Status of the recommendations made by the Committee to discuss High voltage problem
associated with RAPS-5&6 is as under:S.
N.
1
ITEM
BRIEF BACKGROUND AND
CURRENT STATUS
1x125 MVAR Bus 1 This Reactor was meant for
Reactor AT
ongoing RAPP-7&8 (2x700MWe).
RAPS-5&6 ,400 kV
2. However due to high capacitive
Switchyard
loading of system, it was decided
to advance its commissioning .
REMARKS
RELEVANT
AGENCY
NPCIL
3 The P.O. for the Reactor has
been placed. Expected to be
commissioned by March 2015
2
Commissioning of
400 kV RAPS5&6-Kota S/c Line
* Petition filed POWERGRI
by
D
POWERGRI
It is to be established through LILO D in CERC
of one circuit of 400 kV RAPP-7&8- regarding
Jaipur D/c at Kota.
signing of
Zero Date
2Considering evacuation
Agreement
constraints being experienced in
by NPCIL for
power evacuation from RAPS-5&6,
ATS of
it was decided to advance
RAPP-7&8
commissioning of this line to
stabilise the power evacuation
from RAPS-5&6.(31st Standing
Committee of Transmission
Planning of Northern Region
(dated 19/12/2011)
1This line has been part of ATS of
RAPP-7&8.
3 As per available information, this
line is expected to be available by
March 2015.*
3(a)
LILO of both
circuits of RAPS5&6-Kanakroli D/c
at 400 kV S/s
Chittorgarh S/s of
RRVPNL
1 Considering high capacitive
loading of 400 kV RAPS-Kanakroli
D/c line, it was decided to LILO
both the circuits at Chittorgarh S/s
of RRVPNL.(28th NRPC Meeting
dated 26/4/2013).This is to be
executed by POWERGRID
2 In the 101th OCCM
meeting(June-2014),
POWERGRID indicated that LOA
has been issued and
implementation may take two
POWERGRI
D
years.
3(b)
Commissioning of
400 kV Chittorgarh
S/s by RRVPNL
As discussed above, it is a new
scheme of RRVPNL. It has been
test charged from 220 kV side on
13/9/2013.$
$. Progress
report of CEA
for July 2014
RRVPNL
3(c)
Anchoring of 400
kV Chittorgarh S/c
with down stream
220 kV network.
1 It is proposed to be established
through LILO of 220 kV lines at
220 kV bus of the new 400/220 kV
Chittorgarh S/s.
# Web site of
RRVPNL
RRVPNL
2This will ensure that 400 kV
RAPS-5&6-Chittorgarh D/C line
(established through LILO of
RAPS-Kanakroli D/c) will be better
loaded , which may see stable
voltage regime.
3 As per available information,
LILO of 220 kV Chittorgarh-Debari
line at 220 kV bus of 400/220 kV
Chittorgarh is in progress.#
4
Commissioning of
PLCC &
Communication
works on 400 kV
RAPS-Kota S/c
and other lines i.e.
RAPP-Jaipur S/c,
RAPP-Shujalpur
D/c (NR-WR tie)
1 PLCC & associated
communication works in respect of
RAPS-5&6 Transmission lines
were implemented by
POWERGRID on behalf of NPCIL
under a MOU
POWERGRI
D
2 NPCIL has been following up
with POWERGRID to take up
these works accordingly for lines
associated with RAPP-7&8.
3 The response from
POWERGRID is awaited.
4.POWERGRID may do the
needful.
SE (O), NRPC requested POWERGRID and RVPNL to expedite the LILO and associated
commissioning work. He requested NPCIL to take up the matter with management of
POWERGID.
12.
Scheduling of Rampur Hydro Power Station (RHPS) in line with NJHPS
Representative of SJVNL stated that they had successfully achieved commercial Operation
(COD) of three units (1st, 2nd & 5th) of RHEP on 13.05.2014, 4th unit (Unit No. 4) on
18.06.2014 & 5th Unit (Unit No. 3) on 08.08.02014. After COD of these units, power has been
scheduled to the beneficiaries as per the allocation order issued by MOP, GOI.
RHEP (6 X68.67MW) is designed in such a way that it is operative only in tandem with the
generation flow of upstream project NJHPS and is conceived as a Tail Race development of
1500 MW (6x250 MW) Nathpa Jhakri Hydro Power Station (NJHPS). Water coming out from
the tail race of NJHPS is diverted in Rampur Intake through TRT Pond. There is no balancing
reservoir in between the two facilities and there is a small storage in the Jhakri tail Race
pond, from where the water enters the Head Race Tunnel of Rampur.
Due to mismatch in the schedule of NJHPS and RHEP observed during initial days, an
agenda item was brought up in 99th and 100th OCC meeting of NRPC, wherein it was
apprised that RHEP was designed for tandem operation on 1:1 basis with NJHPS, being a
Master station, and RHEP as a slave station. If one unit of NJHPS will run, then RHEP can
operate only one unit strictly likewise up to six units. Further, Rampur cannot run without
NJHPS in operation.
It was further submitted that regulatory type TRT pond gates erected at tail race area of
NJHPS have not been operationalised till now. The operation of these gates are part of the
Tandem Operation System (TOS) of RHEP and would play an important role in tandem
operation. It is expected that these gates will be ready during lean season. In the meantime,
following logic is incorporated in the tandem operation of RHEP & NJHPS, which would be
required temporarily till operationalization of Regulatory Type pond gates:
Case1: No of Synchronised NJHPS units <=3 (say n), then a maximum of n Rampur units
can be synchronised with Grid (i.e. on 1:1 basis) as explained in the presentation also.
Case 2: No of Synchronised NJHPS units >3 (say n), then a maximum of (n-1) Rampur
units can be synchronised with Grid (this would be temporary phase till operationalization of
Regulatory type pond gates).
He added that this is submitted for kind information and requested that daily scheduling of
RHEP may please be fixed by NRLDC as per the aforesaid logics for safe and optimum
evacuation of power as well as operation of both the plants.
SE (O), NRPC stated that the issue of scheduling of Rampur HEP (RHEP) had been
discussed earlier also and requested NRLDC to do the needful so that optimal scheduling of
RHEP is done.
Representative of NRLDC assured that the above requirement of Rampur HPS will be
taken care by them and revision in scheduling for NJHPS and Rampur HPS will be
done simultaneously as and when required.
E.
Other issues.
13. Status of Commissioning of New Generating Units.
The status of commissioning of new generating units in 2014-15 and 2015-16 as updated in
103rd OCC meeting held on 17th & 18th September, 2014 is enclosed as Annex-IX.
Members may please note that this status is based on information provided by the utilities and
for more authentic information may refer to CEA website.
14. Fresh Nominations to Operation Coordination sub-Committee (OCC)
S. E (O), NRPC stated that nominations for OCC were received long back and since then
many changes would have taken place in the organizational structure of member utilities. He
therefore requested Constituents to submit fresh nominations to the Operation Coordination
Sub-Committee (OCC).
S. E (O), NRPC further stated that as per the Northern Regional Power Committee (Conduct
of Business) Rules, 2006 (Sl no. 19.2)- “OCC shall be represented by the representatives of
the constituent members of NRPC. Other than members of NRPC constituents, there shall be
one representative each of DISCOM, IPPs of less than 1000 MW generation capacity and
Electricity Traders in the OCC. The nominated representative shall be at the level of Chief
Engineer and equivalent level”.
He added that nominations have been received from Adani PL., APCPL, Bajaj EPL, BBMB,
HVPNL, NHPC, POWERGRID, RRVUNL, NTPC & HPSEBL and requested other members to
send the nominations expeditiously. Members agreed for the same.
F. Furnishing of Data
15. Power Supply Position:
SE (O), NRPC stated that the monthly data pertaining to Power supply Position has to be
furnished in accordance with Formats 28 and 29 of the CEA (Furnishing of Statistics,
Returns and Information) Regulations, 2007. The formats are available on the website of
CEA and NRPC secretariat (www.cea.nic.in and www.nrpc.gov.in). He added that Format
29 giving revised Power Supply Position for July, 2014 had been submitted by all except
Chandigarh. Format 28 giving provisional Power Supply Position for the month of August,
2014 had been submitted by all except Chandigarh. He requested all SLDCs to continue
submitting data on Provisional Power Supply in format 28 positively by 02nd of every month
and on Revised Power Supply in Format 29 by 15th of every month.
16. Replacement of porcelain insulators.
SE (O), NRPC stated that based on the information furnished by the constituents on the
progress of installation of polymer insulator and cleaning of porcelain insulators, updated
status is enclosed as Annex-X.
He requested all transmission utilities to submit the information regarding replacement of
porcelain insulators with anti-fog/polymer insulators in the prescribed format (available on the
website of NRPC) as at the end of every month. Members agreed for the same.
17. Item no. 17 was inadvertently missing in the Agenda notes.
18. Exception Report in respect of deviation of the actual maintenance of Generating
Units from planned maintenance.
SE (O), NRPC stated that Exception Report in respect of maintenance of generating units
(scheduled v/s actual) has to be furnished to CERC as per Clause 5.7.4 (j) of IEGC by
respective RPCs. Utilities have been requested to submit the above mentioned report every
month so that quarterly/half yearly report could be submitted to CERC in accordance with
IEGC. However, except for NTPC (NCR) & (NRHQ), SJVNL, RRVUNL, Barsingsar TPS,
and UPRVUNL, other Utilities have not furnished the report for August, 2014.
He requested All Utilities to submit the report in the following format:-
Sl.
No
Name
Power
Station
of
Unit
No.
Planned
Maintenance
(At the beginning
of the year as per
LGBR)
From
To
Revised Planned
Maintenance
Schedule
(as
per
discussion
in
OCC)
From
To
Actual
Maintenance
done
From
Reasons
for
Deviation
To
Further, he requested that the above mentioned report is to be sent to NRPC Secretariat
every month so that quarterly/half yearly report could be submitted to CERC in
accordance with IEGC. Members agreed for the same.
19. Power Supply Position for the Areas of State’s falling Under National Capital Region
(NCR).
SE (O), NRPC stated that NCR Planning Board (NCRPB) is closely monitoring the power
supply position of National Capital Region. A monthly Power supply Position of the Union
Territory of Delhi, Haryana Sub-Region, Rajasthan Sub-Region and UP Sub-Region falling
under NCR is required to be submitted by Delhi, Haryana, UP and Rajasthan in the
following format every month to NRPC secretariat.(Month/Year…………)
Sl.
No.
SubRegion
Peak
Demand
(MW)
Peak
availability
(MW)
Shortage
(MW)
Energy
Requirement
(MU)
Energy
Availa
bility
(MU)
Shortage
(MU)
DTL, HVPN, RRVPNL & UPPTCL have submitted the Power Supply Position for the
Areas of State’s falling Under National Capital Region for the month of August, 2014. SE
(O), NRPC requested members to continue sending the monthly PSP for the Areas of
State’s falling Under National Capital Region regularly.
20. Any Other item with the Permission of the Chair.
None
21. Date and Time of Next Meeting.
SE (O), NRPC stated that the dates of next meeting will be communicated in due course.
Additional agenda
AA.1 Cyber Security in Power Sector
Representative of CEA stated that with the introduction of Information & Communication
Technology (ICT) in the Power sector, the Power Systems may be exposed to the Cyber
space and may become vulnerable to Cyber Attacks.
Information Technology Act, 2000 & Amendment Act, 2008 designates Computer emergency
Response Team-India (CERT-In) as the National Nodal agency to perform the following
functions in the area of cyber security:
 Collection, analysis and dissemination of information on cyber incidents
 Forecast and alerts of cyber security incidents
 Emergency measures for handling cyber security incidents
 Coordination of cyber incident response activities
 Issue guidelines, advisories, vulnerability notes and whitepapers relating to information
security practices, procedures, prevention, response and reporting of cyber incidents
 Such other functions relating to cyber security as may be prescribed
Department of Electronics and Information Technology (DeitY), Government of India, has
prepared a Crisis Management Plan (CMP) for countering cyber attacks and cyber terrorism
for preventing the large scale disruption in the functioning of critical information systems of
Government, public and private sector resources and services.
He added that Ministry of Power has constituted the following CERTs (Computer Emergency
Response Teams) in December 2010 to take necessary action to prevent cyber attacks on the
utilities under respective jurisdiction.
 CERT- Thermal (Nodal agency: NTPC)
 CERT- Hydro
(Nodal agency: NHPC)
 CERT- Transmission (Nodal agency: POWERGRID)
Further, he added that Cyber security system shall be implemented and monitored in 4 levels
as below: Level-1 Ground level- individual
 Level-2 Elevated level- organization/agency
 Level-3 Heightened level state/ multiple org
 Level-4 Nation level
In their presentations on cyber security NTPC and NHPC informed the members regarding
action plans of CERT-Thermal and CERT- Hydro and their plans to develop critical
infrastructure as MOU between MoP and above nodal agencies targets for cyber security to
minimize the damage and recovery of system in the event of any cyber attack. Representative
of POWERGRID- (the nodal agency CERT- Transmission) informed that they will make their
presentation in next OCC meeting.
Representative of CEA requested State/Private Power Utilities to take following steps in
regard to Cyber security:
 To nominate a Chief Information Security Officer (CISO) for the Organization.
 To create an Incident Response Team identifying Nodal officers to handle Cyber
security incidents at each Entity/ Plant level.
 To draw IT security Policy and Framework for the respective organization.
 To get vulnerability assessment audit exercise (from CERT-In empanelled auditors,
Ministry of Communication & IT) to further implement Information Security Management
System (ISMS) in line with ISO 27001 Information security standards.
 To define Contingency Plan with respect to Business Continuity in order to counteract
interruptions.
 To define Disaster Recovery Plan.
Representative of CEA stated that State Utilities have been requested to prepare their own
Crisis Management Plan (CMP) and to be in touch with the Nodal Agencies i.e. NTPC, NHPC
& POWERGRID and CERT-In for support.
SE(O) NRPC requested the members that names of CISOs of respective organisations may
be sent to respective nodal CERT of power sector e.g. CERT –Thermal, Hydro or Trans, with
a copy to CISO, MoP. The details of contacts of the officers from 3 power sector CERTs and
CISO for MoP are given below:
1. CERT-Thermal
Shri A. K. Hajela,
AGM (IT), NTPC Ltd.,
Engineering Office Complex, A-8A,
Sector-24, Noida – 201301.
E-mail: [email protected]
Mobile: 9650991205
Fax: 0120-2410626
2. CERT-Hydro
Smt. Savitri Srivastav,
Chief Engineer (IT), NHPC,
NHPC Office Complex,
Sector-33, Faridabad - 121003 (Haryana)
Mobile: 9810617084
Fax: 0129-2277941
3. CERT-Transmission
Shri Jagmohan Sharma,
COO, NTAMC Projects,
C/o Director (Operation), POWERGRID,
Saudamini, Plot No. 2, Sector 29,
Near IFFCO Chowk,
Gurgaon (Haryana) – 122001
Mobile: 8130194460
Fax: 0124-2571760
4. CISO, MoP
Shri H. K. Pandey
Director (IT), CEA
Room No. 326, 3rd Floor,
Central Electricity Authority,
Sewa Bhawan, R. K. Puram, New Delhi – 110066.
: [email protected]
Mobile: 9868966170
Fax: 011-26732303, 011-26109750
AA.2 Intra-Regional Outage Programmes.
SE (O), NRPC stated that in the proposed Intra-Regional Outage Programmes for
consideration in 103rd OCC Meeting forwarded vide NRPC letter of even No. 3413-53 dated
09.09.2014, certain programmes proposed by BBMB were inadvertently left out. He informed
that the proposed outages by BBMB were considered by the OCC in the meeting held on
17.09.2014 and are covered in item 4.2.1 above.
AA.3 Approval for GRID condition requirement to facilitate System test of HVDC Balia-Bhiwadi
Representative of POWERGRID stated that M/s SIEMENS have requested for permission to
conduct system performance test requiring power flow ramps up and down from 250 MW to
2500 MW, as per programme given in the Agenda notes and requested to provide flexible Grid
Conditions for the same. He added that main requirement for the system performance test will
be:1. First three days ramp up & down from 250 to 2500 MW for seven hours,
2. Fourth day ramp up & down from 250 to 1250 MW for seven hours &
3. Fifth day Power O/load of 2875 MW for four hours.
He requested NRLDC to arrange to facilitate the required grid condition and allow for
conducting the system test for HVDC Balia-Bhiwadi as above w.e.f 0900hrs of 18/09/14.
Representative of M/s SIEMENS stated that the purpose of the system performance test is to
check as to how the system will behave with the changes in the loading. He added that this
test is part of testing and commissioning and possibility of pole tripping during ON LINE testing
cannot be ruled out. He added that this test has already been done using simulation
techniques. Further, he intimated that this test was carried out under “ON LINE” conditions for
Talchar-Kolar bipole as well as on M/s Adani Power Ltd.’s Mundra-Mohindergarh HVDC
bipole.
Representative of NRLDC stated that loading Balia-Bhiwadi up to 2500 MW is difficult as it
may lead to increased sensitivity of many lines besides controlling loading on other lines.
Representative of POWERGRID stated that this test can be carried out in a minimum period of
12 hours and overloading of up to 2750 MW would be required with ramp up/ ramp down in the
range of 50-300 MW/minute.
Representative of NTPC suggested carrying out system flow studies by NRLDC/NLDC and
sharing of results of the study with constituents so that the impact of testing on their generating
stations could be ascertained and due precautions could be taken during the testing.
Representative of UPPTCL stated that Singrauli-Anpara and Anpare-Mau lines will get
critically loaded while making 2500 MW availability at Balia. SE (O), NRPC suggested that the
study results be mailed to NTPC and UPPTCL today itself (18.09.2014) and these entities
should furnish their comments to NLDC/NRLDC by Monday (22.09.2014) where after
NLDC/NRLDC may finalise the dates of testing and issue advisory to all concerned at least
one day before the test. Representative of NLDC made it clear that POWERGRID will ensure
uninterrupted transmission of SCADA data during the test failing which the test would be
discontinued. Representative of M/s SIEMENS intimated that this test has to be done on
working days and a minimum of two days notice will be required as some engineers have to
arrive from Germany. Representative of NRLDC assured that all conditions will be laid down
while according approval for the proposed test. OCC gave provisional approval for testing
subject to above observations. Final decision regarding appropriate date and time of
test will be decided by NRLDC based on grid conditions.
AA.4. Allocation of surrendered share by Himachal Pradesh in Various hydro Power Projects.
SE (O), NRPC stated that Ministry of Power vide their letter No. 3/4/2014-OM/796 dated
04.09.2014 have forwarded letter dated 21.07.2014 from Government of Himachal Pradesh
(enclosed as Annexure to the Agenda notes) whereby GoHP has placed HP’s SOR share at
the disposal of GoI for allocation amongst the power deficit states initially for five years i.e up
to 31.03.2019. He requested all members, if interested, to send their acceptance to MoP
stating quantum and period.
SE (O), NRPC further stated that it would be better if power surrendered by Himachal Pradesh
remains in the northern region for which he requested power deficit states like Uttar Pradesh
to consider seeking allocation from power surrendered by H.P. Members agreed to consider
this option.
AA.5 Change in e-mail ID of SE (O), NRPC.
SE (O), NRPC stated that in accordance with GoI guidelines, all correspondence to NRPC
Sectt. on operational matters should be sent at our newly created official email ID i.e. [email protected] He requested Members to use this new mail ID for any correspondence. He also
requested members to use their official email ID for correspondence. Members noted the
same and agreed to use this new ID for correspondence.
AA.6 Mock black‐Start Exercises. Representative of NRLDC stated that as per Indian Electricity Grid Code (IEGC) clause 5.8(b)
“Mock trial runs of the procedure for different sub-systems shall be carried out by the Users/
CTU/ STU at least once every six months under intimation to the RLDC”. He added that Mock
Black-start exercise of power stations are therefore needs to be carried out in-order to ensure
healthiness of black start facility. The winter months are off peak hydro period and therefore
good time to carry out such exercises. He further, stated that the schedule of mock exercise
dates for different hydro & Gas power station is proposed. The power stations may confirm
and inform to all the concerned persons of control centre/ substations to facilitate the exercise.
The summary of the Mock Black start exercises conducted for the year 2013-14 is given
below:
S.No.
Name of Hydro / Scheduled
Gas Station
Date
Actual Date
Remarks
1
Bairasiul HEP
22nd Oct 2013
22nd Oct 2013
Black start exercise done successfully
2
Bhakra HEP
29th Oct 2013
08th Jun 2014
BBMB carried
Bhakra(R)
3
Dhauliganga HEP
07th Nov 2013
NA
Plant under shutdown from 16th July 2013
to 19th July 2014
4
Koteshwar HEP
18th Nov 2013
18th Nov 2013
5
Uri HEP, Lower 21st Nov 2013
Jhelum HEP &
Pampore GT’s
27th Nov-2013
6
Jhakri HEP
25th Nov-2013
26th Nov 2013
out
the
exercise
for
7
AD Hydro HEP
04th Dec 2013
13th Dec 13
8
Chamera-3 HEP
16th Dec 2013
16th Dec 2013
9
Karcham Wangtoo 19th Dec 2013
HEP
19th Dec 2013
10
Malana-2 HEP
23rd Dec 2013
17th Jan-2014
11
Salal HEP
02nd Jan 2014
10th Jan-2014
12
Pong HEP
08th Jan 2014
08th Jun 2014
Black start exercise done successfully.
13
Tehri HEP
15th Jan 2014
15th Jan 2014
Black start exercise done successfully.
14
Chamera-2 HEP
22nd Jan 2014
NA
Not carried out due to non-availability of
Black start provision in SCADA system
15
Chamera-1 HEP
30th Jan 2014
30th Jan 2014
16
Budhil HEP
05th Feb 2014
NA
Was under maintenance up to 15th Feb2014
Representative of NRLDC stated that the proposed schedule for the Mock Black start exercise
is as follows:
Hydro Power Stations:
Date
Name of stations
th
29 Oct 2014
Bairasiul HEP**
#
04th Nov 2014
Dhauliganga HEP
th
11 Nov 2014
Koteshwar HEP**
19th Nov 2014
Uri HEP, Lower Jhelum HEP & Pampore GT’s**
$
26th Nov 2014
Uri-II HEP
02nd Dec 2014
Jhakri HEP**
09th Dec 2014
AD Hydro HEP**
17th Dec 2014
Chamera-3 HEP**
24th Dec 2014
Karcham Wangtoo HEP**
30th Dec 2014
Malana-2 HEP**
th
07 Jan 2015
Salal HEP**
09th Jan 2015
Rampur HEP
13th Jan 2015
Tehri HEP**
#
16th Jan 2015
Chamera-2 HEP
th
$
20 Jan 2015
Parbati-III HEP
th
23 Jan 2015
Chamera-1 HEP**
#
28th Jan 2015
Budhil HEP
**For these Hydro power stations, Mock black-Start procedure circulated during last
exercise/ previous year may be used.
#
Mock black-Start exercise not carried out during Year 2013-14.
$
Newly commissioned hydro stations.
Gas Power Stations:
Date
14th Nov 2014
12th Dec 2014
05th Feb 2015
Name of stations
Auriaya GPS
Dadri GPS
Anta GPS
Bawana GPS had informed last year they do not have black start capability. The procedure for
NTPC’s gas based stations need to be developed. NRLDC had shared with NR-OCC in its
92nd meeting, the exercise carried out at Kawas GPS in Western Region last year. The similar
procedure may be developed in NR.
He desired that SLDC’s may also carryout mock black-start of station in their respective
control area & inform the tentative dates to the OCC as well as outcome of these exercises.
The proposed Hydro Power Stations to undergo the exercise are as follows:
S.NO. Utility
1
J&K
2
3
4
5
HP
6
7
8
Punjab
9
10
11
12
Rajasthan
13
14
15
16
UP
17
18
19
Uttarakhand
20
21
22
23
Delhi
24
25
26
Haryana
Hydro Power Station
Baglihar
Lower Jhelum
Upper Sindh
Larji
Bhbha
Malana -I
Baspa
Anand Sahib
Ranjit Sagar
Mahi-I&II
Rana Pratap Sagar
Jawahar Sagar
Gandhi Sagar
Dholpur GPS
Ramgarh GPS
Rihand
Obra
Ramganga
Chibro
Khodri
Chilla
Maneri Bhali-I&II
IP Extn GTs
Pragati GPS
Rithala
Faridabad GPS
Installed Capacity(MW)
3x150
3x35
2x11+3x35
3x42
3x40
2x43
3x100
4x33.5
4x150
2x25+2x45
4x43
3x33
5x23
3x110
1x35.5+2x37.5+1x110
6x50
3x33
3x66
4x60
4x30
4x36
3x30+4x76
6x30+3x30
2x104.6+1x121.2
3x36
2x137.75+1x156.07
Last year also such request was made by NRLDC, however SLDCs have not informed about
carrying out the exercise. The information may please be shared by SLDCs and program for
this year’s exercise shall also be shared. He requested SLDCs to submit the reports of black
start exercise in their respective control area. SLDCs may also identify further generating
stations/unit for black start exercise.
Representative of NTPC stated that the issue of carrying out Mock Black Start exercise was
discussed in the past in several OCC meetings also but the exercise could not be carried at
NTPC NCR Gas Stations due to absence of proper exercise procedure pending from NRLDC
end. He further stated that as such, they were starting GTs at each of its gas stations through
DG set once a year to check the healthiness of the system. The healthiness of the availability
of black start facility is already proven during previous grid failures.
Representative of NRLDC stated that NTPC Kawas plant had carried out one such exercise
last year and NTPC can share the procedure with NRLDC as this would help in preparing
procedure for NCR Gas Stations. Representative of NTPC stated that operational
requirements for carrying out this exercise is plant specific as line / load availability conditions
are different for different plants. After deliberations, OCC decided that a separate meeting
shall be convened by NRLDC with NTPC and NRPC representatives to evolve the procedure
for carrying out the mock exercise at NTPC-NCR Gas Stations.
Representative of NHPC stated that Mock Black start exercise at URI-I & II shall be carried out
after the present crisis (Flood situation) in J&K is over and before the snowfall.
Representative of NRLDC stated that Mock Black start exercise at Rana Pratap Sagar was
carried out 02 years back and requested RRVPNL to arrange for the exercise this year.
Representative of RRVPNL agreed for this.
Representative of DTL stated that Mock Black start exercise at their GT stations has been
done once and will be repeated this year also.
All other members agreed with the dates proposed by NRLDC for Mock Black start exercise
and also assured to plan for this exercise at generating stations in their control area and
intimate NRLDC.
AA.7 Revision of document for System Restoration Procedure (SRP) & Reactive Power
Management for Northern Region:
Representative of NRLDC stated that the System restoration procedure & Reactive Power
Management document for Northern region are due for revision. He added that a letter in this
regard has been forwarded to all the utilities. He requested Utilities to give their feedback,
suggestion & updated information latest by 31st October 2014 in-order to revise the System
restoration procedure.
Members noted the above and agreed to send the feedback, if any.
AA.8 Winter Preparedness:
Representative of NRLDC stated that Winter months are approaching and therefore
preparedness on following points needs to be reassessed:
 Status of transmission system and other resources likely to be available during coming
winter months.
 Review of the status of insulator replacement and pre-winter cleaning of insulators on
transmission lines.
 Complete list/Map of transmission line (s) with polymer insulators.
 Measures to contain high voltages during night off-peak hours.
 Readiness for black start by generating stations.
 Availability of the Real Time data to the control centers.
 Healthiness of the communication system between control centres and between control
centers & substations.
 Status of pre-winter maintenance by Railways on its lines and updated maps of all
railway feed points, nodal officers of utility as well as railways related to each feed
points .
 Deployment of the additional manpower at important substations / control centers.
 Availability and monitoring of the weather data.
 Backing down of generation at generating stations to contain voltage and high
frequency and reactive power absorption by generators, fully utilizing the capability
curve.
 Monitoring of VAR absorption by generating stations, the format agreed for monitoring
is annexed at Annexure-I to the Additional Agenda notes-II.
 Status of transmission system spares at strategic locations.
 Availability of tertiary reactors at 33kV voltage level & its utilizations.
 Monitoring of Generator Reactive Power to control the voltage at generator terminal.
 Readiness of Synchronous Condenser Mode Operation of Hydro unit.
He added that certain points regarding winter preparedness like information on lines with
polymer insulator etc were deliberated in last OCC but information is yet to start flowing. He
again requested Members to kindly submit the details of status of polymer insulator in the
lines, details of synchronous condenser mode operation & status of tertiary reactors.
SE (O), NRPC requested all STUs to furnish the updated details of 400kV lines where
Polymer Insulator have been replacement (In the proforma given in the additional agenda
notes of 102nd OCC meeting) which would help NRLDC in preparation of one consolidated list
of lines and redesign the SCADA Map of Northern region with insulator wise lines segregation.
He added that this would facilitate the operators of NRLDC in the night hours of winters to
decide opening of lines on high voltage. Members agreed for the same.
Further, SE (O), NRPC requested the representative of NRLDC to furnish the list of lines that
tripped due to fog during last winter. Representative of NRLDC agreed to send the list to
NRPC Secretariat.
Representative of NRLDC pointed out that Auto-reclose feature on Agra-Muradnagar and
Panki-Muradnagar lines does not seem to be functional as it did not operate in the recent
trippings and requested the representative of UPPTCL to look into and get it set right.
Representative of UPPTCL clarified that Auto-reclose feature on Panki-Muradnagar lines is in
healthy condition. However, problem exists in the PLCC for which Wave Trap is to be
changed. In respect of Agra-Muradnagar line, he intimated that the Auto-reclose feature is
healthy. However, it did not operate in the first instance but operated successfully in the
second incident on the same day.
Representative of NRLDC desired that trial operation of synchronous condenser mode
operation of units at Pong, Largi, RPS, JS, Ranjit Sagar and Tehri hydro stations needs to be
carried out to ensure that these units can be operated as synchronous condensers as and
when required. OCC requested the concerned SLDCs to arrange the trial operation of
synchronous condenser mode operation of units as above within a week and confirm to
NRLDC. Members agreed for the same.
AA.9 Critical Grid operation during last week of the August 2014.
Representative of NRLDC stated that a very high demand in Northern Region was witnessed
during the last 10 days of August 2014. During this period, on one side hydro generation was
showing sign of reduction and on other side some of the thermal units of Rihand, Singrauli,
Dadri, Kawai, Rosa, Jhajjar & Talwandi Sabo generating stations were under outage due to
coal shortage.
Though, NRLDC was continuously pursuing with state control areas for maintaining the drawl
within their drawl schedule. Matter was also taken up with higher official of the state control
areas but some of the state control areas were continuously overdrawing. This resulted into
sustained low frequency operations and violations of various regulations.
Though the matter of over drawl was also discussed in last OCC meeting, but situation was
quite critical.
Rajasthan, UP, J&K and Uttrakhand were the main defaulting control areas. The statistics in
respect of NR states for duration (20-28 Aug 2014) is given below:
Rajasthan
UP
Uttarakhand
JK
Date
Daily
Energy
(MU)
Max MW
Daily
Energy
(MU)
Max MW
Daily
Energy
(MU)
Max
MW*
Daily
Energy
(MU)
Max
MW *
20-08-2014
21-08-2014
22-08-2014
23-08-2014
24-08-2014
25-08-2014
26-08-2014
27-08-2014
28-08-2014
4.22
9.07
8.23
9.23
5.35
4.66
-1.54
9.17
12.16
814
822
731
672
852
557
495
516
1123
3.09
3.61
4.13
5.04
5.13
6.48
3.18
3.20
-0.34
956
1056
943
959
773
778
828
845
843
0.27
0.40
0.79
1.14
1.07
1.95
1.94
2.49
1.41
144
130
234
154
231
232
173
308
184
3.02
1.49
0.99
2.19
3.63
4.01
3.13
4.04
4.02
329
200
225
282
305
377
341
458
283
*Based on hourly data
He requested the state control areas to prepare contingency quick plan during such situations
to control the over drawl from the grid for safe and secure operation of the grid.
Representative of NTPC stated that during the power shortage crisis in NR during last week of
Aug'14, all 13 GTs of NCR Gas Stations were on bar supporting the grid and good quantity of
RLNG was consumed during the aforesaid period. He shared that during the aforesaid period,
NTPC approached various constituents of NR & requested them to requisition power on liquid
fuel available from its Dadri-Gas & Faridabad gas stations as the liquid fuel stock currently
available at these stations is from old inventory rate. Accordingly, variable cost on liquid fuel
would have been comparatively cheaper than that of RLNG. However, beneficiaries didn’t
avail the same. He informed that the old liquid stock is sufficient to supply about 200 MW from
each of Dadri-Gas & Faridabad gas stations for about 4-5 days on a continuous basis &
beneficiaries can avail the same if the need be.
Representative of NRLDC informed that there was continuous O/D by UP of up to 07 MUs to
08 MUs and 1000-1100 MW. Representative of UPPTCL informed that Anpara and Paricha
machine were under outage.
All state control areas were requested to prepare contingency quick plan during such
situations to control the over drawl from the grid for safe and secure operation of the
grid.
AA.10 Load/Generation management by state Control Areas and information to RLDC. Representative of NRLDC stated that the state Control area’s demand is met from their own
intra-state generation, share/allocation/PPA scheduled on long term basis from outside state &
purchase/sale through Medium term & Short term transactions.
The load demand likely pattern & quantum forecasting is the key to proper planning for
meeting of the demand. The planning is important for meeting the load without over drawl from
grid. From hourly forecasted pattern of demand, the own generation/Long term/Medium term
generation likely to be scheduled needs to be deducted to find out the likely shortfall/excess &
its duration. This balance demand needs to be managed through market purchase/sale or load
management.
The clause 5.3 (e) of the Indian Electricity Grid Code (IEGC) says that facilities for estimation
of demand for daily operational use for each 15 minute block shall be created at the earliest
but later than 01.01.2011.
He requested each SLDC to prepare its demand curve and it planning (each 15 minute block
wise) to meet it. This information need to be shared with NRLDC on day ahead basis.
OCC requested SLDCs to prepare their demand curve and carry out planning (each 15
minute block wise) to meet it. SLDCs were also requested that this information be
shared with NRLDC on day-ahead basis. Members agreed for this.
AA.11 Pilot Project on Testing of Primary Frequency Response of generating units:
Representative of NRLDC stated that a pilot project for testing the generating units under
FGMO/RGMO has been awarded by the Central Transmission Utility (CTU) to M/S Solvina
International AB. This pilot project is done based on the Terms of Reference (ToR) framed by
the multi stake holder committee formed through an order of the Central Electricity Authority
(CEA). The Central Electricity Regulatory Commission (CERC) had also ordered such testing
through its order in petition 191 of 2011.
The plants included in pilot project are Chamera-I of NHPC Limited, Tehri of THDC India
Limited, Bawana GPS of PPCL and Dadri stage -1 and stage-2 of NTPC Limited.
Dates for site visit, data collection and the tests, related logistics etc. were discussed and
finalized. Schedule for the pilot project, finalized in the meeting of 7th Aug 2014 and 20th
August 2014, is as follows:
Activity
Duration
Start Date
Completion
Date
Completion
Week
First Week
Kick Start Meeting
20-08-2014
Test Document preparation &
Submission to POSOCO
Data Collection Preparations
21-08-2014
22-08-2014
Two weeks
23-08-2014
06-09-2014
First Week
Third Week
Site Visit
Two weeks
07-09-2014
20-09-2014
Fifth Week
Chamera
07-09-2014
10-09-2014
Bawana
11-09-2014
12-09-2014
Tehri
14-09-2014
16-09-2014
Dadri
17-09-2014
18-09-2014
21-09-2014
11-10-2014
12-10-2014
19-10-2014
18-10-2014
25-10-2014
26-10-2014
15-11-2014
Test preparations-1
Tests at Chamera
Tests at Tehri
Test Preparations 2
Three
weeks
One Week
One Week
Three
weeks
Eighth Week
Ninth Week
Tenth Week
Thirteenth
Week
Submission of soft copy of
Draft Report of Chamera &
Tehri
One Day
Tests at Dadri
Tests at Bawana
One Week
One Week
Presentation of Draft Report
Chamera & Tehri at Delhi
Final Report Submission for
Chamera and Tehri
Submission of soft copy of
Draft Report of Dadri and
Bawana
One Day
28-11-2014
One day
19-12-2014
One Day
19-12-2014
Presentation of Draft Report
of Dadri & Bawana
One Day
Mid January
Final Report submission &
presentation
One Day
End of
January
20-11-2014
-
17-11-2014
23-11-2014
24-11-2014
27-11-2014
Fourteenth
Week
Fourteenth
Week
Fifteenth Week
Fifteenth Week
He added that the site visit at Chamera and Bawana has been completed.
Representative of NRLDC stated that this is for the information of the members.
Members noted the same.
AA.12 Critical power supply situation in J&K due to floods. Representative of NRLDC stated that due to heavy rains in the J&K area, generating stations
as well as distribution system was affected there. The generating station of Salal, Uri –I and
Uri –II were closed w.e.f. 03rd September and 05th September 2014 respectively due to high
silt conditions. The 220 kV substation of Mirbazar was also shut down due to flooding. The
voice communication with different generating stations, substations and real-time data
availability from these was one of another challenge for the system operation.
The non availability of real-time data and even daily reports (at night for preparing daily
reports) has been regularly raised by NRLDC in different meetings; still there is a little
improvement. Even though Wagoora is connected through Kishenpur through wide band
communication but at times it was also out and thus intermittent real-time data was available.
Voice communication on this wideband as well as PLCC communication was unavailable.
He requested members for recommending strong communication infrastructure for power
system and taking up any defects in already provided communication system of wideband and
PLCC. He also requested SLDC J&K also to send daily reports to NRLDC during night after
the day is over.
During outage of the units it was observed that hydro units of Uri-I were revived earlier than
Uri-II. Units of Salal HEP went into outage for the period of 3rd Sep 2014 to 8th Sep 2014 while
upstream Baglihar HEP was continuously running during the period. He requested NHPC to
appraise the house about the hydrology between Salal HEP & Baghlihar HEP and Uri-I & Uri-II
HEP.
Representative of NHPC stated that Salal power station is ROR scheme. The silt level in Salal
Reservoir suddenly increased to 6412 ppm at 11:00 hrs on 03.09.2014 and was rising.
Therefore all the units were stopped between 11:15 and 11:50 Hrs. He added that due to
heavy rainfall, the silt levels in adjoining nallahs between Baglihar & Salal namely “Rud”,
“Ansh” etc reached 16000 ~ 30000 ppm on 05.09.2014 & 06.09.2014. However after inflows
receded, and the silt was came down in the recommended range of 3000 ppm, all the units
were synchronized one by one on 08.09.2014 between 20:37 and 22:12 hrs. Silt levels of
Baglihar are not known to NHPC.
He further informed that Uri-I was restored on 06.09.2014. However, Uri-II could be restored
only on 08.09.2014 as Uri – II being in downstream of Uri-I was effected by increased trash,
silt conditions carried by more nallahs feeding into Jhelum in the downstream of Uri-I namely ‘
Jabla, Bunihar, etc”.
AA.13 Information about variable charges of all the generating units in the Region.
Representative of NRLDC stated that all regional entities and each SLDC for its all intrastate
entities may submit the details about variable charges of generating units to RPC/ RLDC. He
added that it is for information compilation and for better dissemination of information among
all the NR entities facilitating them in purchase of power from various sources.
Representative of NTPC stated that it will not be possible for them to furnish the fixed charges
due to uncertain coal supplies.
OCC decided that all regional and intrastate entities will furnish the variable charges of
their generating units on a quarterly basis beginning September, 2014. OCC also
decided that variable charges for September, 2014 will be submitted by all concerned in
the next meeting. In this regard, SLDCs will obtain the variable charges from the
generating units located in their control area.
AA.14 Violation of Deviation Settlement Mechanism regulation:
Representative of NRLDC stated that the Deviation settlement mechanism has been
implemented in the country w.e.f. 17th February 2014. The data of various drawee regional
entities have been analyzed and following violation have been observed.
Violation of regulation 7 (1) of CERC (Deviation Settlement and related matters) Regulation
2014: (Limit on volume of deviation)
Table-1: Period:-28.07.2014 to 24.08.2014.
S.No.
State
1
Chandigarh
2
Delhi
3
Himachal Pradesh
4
Haryana
5
Jammu & Kashmir
6
Punjab
7
Rajasthan
8
Uttar Pradesh
O/D: Violation in Over drawl
U/D: Violation in Under drawl
O/D
U/D
O/D
U/D
O/D
U/D
O/D
U/D
O/D
U/D
O/D
U/D
O/D
U/D
O/D
Average No of Blocks per day
62
1
5
19
70
36
11
30
38
16
45
9
26
31
66
U/D
9
O/D
23
9
Uttarakhand
U/D
10
Remarks: Violation is considered while Deviation from Schedule of a Utility is 150 MW or 12% of
Schedule whichever is lower. (When Freq is 49.7 Hz and Above)
Violation of regulation 7 (10) of CERC (Deviation Settlement and related matters) Regulation 2014:
(Sustained deviation from schedule in one direction)
Period :
23-June2014 to
27-July2014
Chandi
garh
Total No.
of
Violation
s
191
Delhi
Haryan
a
Himac
hal
Prades
h
PDD
J&K
Punjab
Rajast
han
Uttar
Prad
esh
Utta
rakh
and
116
64
85
110
96
101
112
116
Representative of NRLDC stated that the above analysis is for the information of the members
and requested members to take corrective steps to minimize the violations. SE (O), NRPC
also requested for corrective action by all concerned utilities. Members agreed to take
corrective action for avoiding non-compliance to regulatory provisions.
AA.15 Multiple Tripping in the system since last OCC meeting:
Representative of NRLDC stated that following multiple tripping took place in NR since last
OCC meeting. The preliminary report of all the events have been issued from NRLDC.
He added that the status of receipt of reports and fault clearing time as per PMU data is also
given in the table. It could be seen that fault clearing time has been much higher than
mandated by CEA (Grid Standard) Regulations. The non receipt of root cause analysis and
remedial measures report is also violating various regulations.
Outage
S.NO.
Date
Time
(in Hrs)
1
10.08.2014
10:02hrs
2
11.08.2014
12:08hrs
3
12.08.2014
16:28hrs
4
20.08.2014
11:10hrs
5
20.08.2014
13:41hrs
6
22.08.2014
10:37hrs
Event
Multiple element tripping at 400kV
Anpara-B TPS due to differential
bus bar protection operation
Makhu Station due to differential
bus bar protection operation
Complete outage of Rampur HEP
due to mal-operation of
TOS(Tandem Operation) signal
Agra(UP) due to mis-operation of
LBB protection
Tripping of 400kV KashipurRishikesh & Kashipur-Moradabad
line. Phase to phase fault in 400kV
Kashipur-Rishikesh line
Panchkula(PG)
Category
as per
CEA Grid
Standards
Fault
Duration
Time
Status of Report
GD-1
80ms
Received
GI-2
320ms
Not Received
GD-1
Not
Applicable
Not Received
GD-1
Not
Applicable
Received(Preliminar
y report from UP)
GI-2
1000ms
Not Received
GD-1
80ms
Not Received
7
27.08.2014
23:23hrs
Multiple element tripping at
Samaypur(BBMB) due to bus bar
protection operation for Bus 1.
GD-1
80ms
Received(Preliminar
y report from BBMB)
8
28.08.2014
01:37
Tripping of 220kV AuraiyaMalanpur & Auraiya-Mehgaon ckt
GI-2
3000ms
Not received
GD-1
480ms
Received
GI-2
Not
Applicable
Not received
Complete outage of 400kV
Agra(UP) station due to bus fault
at 400kV Agra(UP) and
unavailability of bus bar protection
at 400kV Agra(UP)
400kV Jhajjar-Mundaka D/C
tripped due to DC supply failure at
400kV Jhajjar.
9
28.08.2014
13:34hrs
10
29.08.2014
21:01hrs
11
30.08.2014
21:43hrs
400/220kV 315MVA ICT-1&2
tripped due to over load
GD-1
Not
Applicable
Received
(Preliminary Report
from UP)
12
01.09.2014
14:35hrs
Tripping of 400kV KashipurRishikesh & Kashipur-Moradabad
line. B-phase to earth fault.
GD-1
2160ms
Not received
SE (O), NRPC requested members to take note of the above multiple trippings and advise
their counterparts in their Protection Departments to bring all the relevant details for
discussing these in the next PSC meeting.
--------------------------------------------------------------------------------------------------------------------------
Annnex- IA
List of participants in the 103rd OCC meeting held on 17th September, 2014 at NRPC
Secretariat, New Delhi
BBMB
Name
Kuldeep Singh Manderna
Designation
Power Controller
Contact No.
09417200352
Email
[email protected]
Email
[email protected]
NHPC
Name
Rajesh Joshi
Designation
Deputy Manager
Contact No.
09810560424
NLDC
Name
N. Nallarasan
Phani B. krishna
Sunny choudhary
Designation
Dy. General Manager
Engineer
Engineer
Contact No. Email
08527077022 [email protected]
08527768282
NRLDC
Name
D.K.Jain
Surendra Pratap
Designation
Asstt. General Manager
Engineer
Contact No. Email
Designation
DGM,(OS),NCRHQ
AGM,(OS),NRHQ
Senior
Manager,(OS),NCRHQ
Contact No.
09650990166
09415501016
09650991759
PGCIL
Name
Rajeev Sudan
S.C.Sharma
Designation
DGM,(OS),
Chief Manager, CPCC
Contact No. Email
SJVNL
Name
Rajeev Agarwal
Designation
Dy. Manager
Contact No. Email
DTL
Name
R.S.Meena
Darshan Singh
Designation
DGM,(T),400 kV
Manager (T), SLDC
Contact No. Email
NTPC
Name
Shailesh Dheman
Hari Shanker Agarwal
P.K.Saini
Email
[email protected]
[email protected]
[email protected]
HVPNL-HPGCL-HPPC
Name
Jai Ram
Designation-Org.
Executive Engineer, SLDC
Contact No.
09354194826
Email
[email protected]
HPSEBL
Name
Deepak Uppal
Designation
SE (PR&ALDC)
PSTCL
Name
S.S.Mal
Saleem Mohammad
Contact No.
09418109169
Designation
Dy. CE,SLDC (Op.)
ASE, SLDC
Email
[email protected]
Contact No. Email
RVPNL-RRVUNL-RDPPC
Name
Designation-Org.
Contact No.
R.K.Jain
A.K.Arya
SE (SO&LD)
Xen (PC)
Email
UPPCL-UPPTCL-UPRVUNL
Name
Designation-Org.
A.J.Siddiqui
Executive Engineer, SLDC
Pankaj saxena
Executive Engineer, STU
Contact No. Email
PTCUL
Name
Kartikey Dubey
Designation-Org.
SE I/C, SLDC
Contact No. Email
APCPL
Name
Om Prakash
Designation-Org.
AGM (EEMG)
Contact No. Email
Adani Power Ltd.
Name
Anand Shankar
Designation-Org.
DGM (O&M), Kawai (Raj.)
Contact No. Email
NRPC
Name
P.S.Mhaske
Ajay Talegaonkar
Naresh Kumar
R. C. Gupta
K.N.M.Rao
Designation
Superintending Engineer
Executive Engineer
Consultant
Chief Manager
Contact No. Email
09910728144
08860310642
09213723955
09717296922
Annex- IB
List of participants in the 103rd OCC meeting held on 18th September, 2014 at NRPC
Secretariat, New Delhi
BBMB
Name
Kuldeep Singh Manderna
Designation
Power Controller
Contact No.
09417200352
Email
[email protected]
CEA
Name
H.K.Pandey
O.K.Shukla
Designation
Director
Dy. director
Contact No.
09868966170
Email
[email protected]
[email protected]
NHPC
Name
S.P.Singh
Anirudh Gupta
S.K.Mishra
Designation
Chief Engineer (O&M)
Sr. Manager
Manager (E)
NLDC
Name
N. Nallarasan
Designation
Dy. General Manager
NPCIL/NAPS/RAPS
Name
R.D.Yadav
NRLDC
Name
A.Mani
D.K.Jain
Rajiv Porwal
Ajay Bhatnagar
Nitin Yadav
NTPC
Name
Janhvi shanker
Contact No.
09971863565
09811868611
09910103478
Contact No.
08527077022
Designation
STE (E&C), RAPS-B
Designation
General Manager
Assistant General Manager
Chief Manager
Manager
Senior Engineer
Designation
General Manager (OS),
NCRHQ
Manoj Mathur
General
Manager
(Comml.), NRHQ
Shailesh Dheman
DGM,(OS),NCRHQ
Prashant Chaturvedi
DGM (Comml), NRHQ
Hari Shanker Agarwal AGM,(OS),NRHQ
A.K.Patel
AGM,(IT), Noida
Email
[email protected]
[email protected]
[email protected]
Email
[email protected]
Contact No.
09413354527
Contact No.
09873088797
09910344127
09871581133
09910952459
09560050257
Email
[email protected]
Email
[email protected]
[email protected]
[email protected]
[email protected]
Contact No. Email
09650990166
09450916653
09415501016
09650997022
[email protected]
[email protected]
[email protected]
[email protected]
PGCIL
Name
A.K.Arora
Rajeev Sudan
S.C.Sharma
N.K.Bhaskar
Sandeep Yadav
Designation
GM (O&M), NR-I
DGM (OS), NR-II
Chief Manager, CPCC,
Chief Manager
Engineer
SJVNL/NJHPS
Name
Rajeev Aggarwal
Contact No.
Email
09419213490
09873918526
08739907151
08744828835
[email protected]
[email protected]
[email protected]
[email protected]
Designation
Dy. Manager (C&SO)
Contact No. Email
DTL-IPGCL-PPGCLName
Designation-Org.
P.K.Gupta
General Manager, SLDC
S.K.Sharma
Deputy General Manager
(Prot.),
Darshan Singh
Manager (T), SLDC
Contact No. Email
HVPNL-HPGCL-HPPC
Name
Designation-Org.
Contact No.
Rajesh Kr. Goel
Superintending
Engineer, 09316467253
SLDC
Sandeep Khari
APC, SLDC
09315016218
HPSEBL
Name
Deepak Uppal
Designation
Superintending
PR&ALDC
PSTCL
Name
S.S.Mal
Saleem Mohammad
Harish Bakshi
Email
[email protected]
[email protected]
Contact No.
Email
09418109169
[email protected]
Engineer,
Designation
Dy. Chief Engineer,
SLDC
ASE, SLDC
Sr.Xen, SLDC, PSPCL
Contact No.
Email
RVPNL-RRVUNL-RDPPC
Name
Designation-Org.
Contact No.
R.K.Jain
A.K.Arya
K.Pandey
Superintending Engineer (SO&LD)
Executive Engineer
AEN (RDPPC)
UPPCL-UPPTCL-UPRVUNL
Name
Designation-Org.
Superintending
Engineer
Shri Krishna
(T&C)
A.J.Siddiqui
Executive Engineer, UPPTCL
Pankaj saxena
Executive Engineer, STU, UP
Kavindra Singh Technical advisor, UPPTCL
Email
Contact No. Email
PTCUL
Name
Kartikey Dubey
Designation-Org.
Superintending Engineer, SLDC
APCPL
Name
Om Prakash
M.Raghu Ram
Designation-Org.
AGM (EEMG)
AGM (OS)
Contact No.
09411107693
Email
[email protected]
Contact No. Email
Adani Power Ltd.
Name
Anand Shankar
Designation-Org.
DGM (O&M), Kawai (Raj.)
Contact No. Email
NRPC
Name
P.S.Mhaske
Ajay Talegaonkar
Rajiv Kumar
Naresh Kumar
K.N.M.Rao
G.K.Garg
R. C. Gupta
Vijay Kumar
Ratnesh Kumar
Gaurav Jasuja
Designation
Member Secretary I/C
Executive Engineer
Executive Engineer
Chief Manager
Dy. Manager
Consultant
Consultant
Asst. Ex. Engineer
Asst. Ex. Engineer
Contact No. Email
09910728144
09313772943
08860310642
09717296922
09716014322
09213723955
09873549048
08750628439
08285796082
Annexure-II
Periodicity of Planned Shutdowns during august, 2014
Total Planned Shut Downs
Element Name
Balia-Patna 2
Agra-Ballabgarh
Kanpur(PG)-Unchahar(NTPC) 2
Rihand-Dadri Pole 2
Cbganj(UP)-Sitarganj(PG)
Rampur(SJVNL) - Nallagarh (PGCIL)-1
Jhakri (SJVNL)-Rampur - 1
Jhakri(SJVNL)-Karchamwangtoo(JP) 1
Cbganj(UP)-Tanakpur(NHPC)
Bareilly(PG)-Moradabad(UP) 2
TCSC of MUZPR-I at GRKP
Agra-Kanpur
Auraiya(NTPC)-Kanpur(PG) 1
Balia-Patna 4
Jodhpur II-Rajwest 1
Lucknow(PG)-Sitapura(UP)
Azamgarh-Sultanpur
Hamirpur(PG) -Parb-pol 1
Amritsar-Parb-pol 1
Agra(PG)-Auraiya(NTPC) 2
Mandola-Meerut 3
Chittorgarh(RVPNL)-RAPS B(NPC) 1
Agra-Fatehpur 2
Dadri(NTPC)-Malerkotla(PG)
Gopalpur(DTL)-Mandola(PG) 2
Chinhat(UP)-Lucknow(PG)
Daultabad(HVPNL)-Gurgaon(PG) -2
Dadri(NTPC)-Panipat(BBMB) 2
Moga(PG) -Talwandi Sabo(PSEB)
Daultabad 315MVA ICT 3
Chittorgarh(RVPNL)-RAPS B(NPC) 2
Daultabad(HVPNL)-Gurgaon(PG) -1
Abdullapur-Sonepat 1
Agra-Fatehpur
Azamgarh 315MVA ICT-1
Bhiwadi(PG)-Bhiwadi(RVPNL) 1
Jodhpur II-Merta 2
Shree Cement(CSL)-Merta(RRVPNL)
Jhakri(SJVNL)-Karchamwangtoo(JP) 2
Wagoora 315 MVA ICT 2
Neemrana-Sikar 2
Neemrana-Sikar 1
Lucknow-Rosa
Azamgarh-Gorakhpur
Moga 500 MVA ICT 1
Bassi 315 MVA ICT 2
Mandola(PG)-Narela(DTL) 1
Kashipur-Rishikesh
Bhiwadi-Moga 1
105
Periodicity
6
1
2
1
1
1
1
1
1
1
1
1
6
2
1
1
1
1
1
3
1
1
4
3
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
2
1
1
2
1
1
1
1
Agra(PG)-Auraiya(NTPC) 1
Bassi 315 MVA ICT 1
Bahadurgarh 500 MVA ICT 2
Akal-Jodhpur II
Dadri(NTPC)-Harsh Vihar(DTL) -1
Abdullapur 315 MVA ICT 4
Mau 200 MVA ICT 2
Agra-Sikar 1
Agra-Sikar 2
Koldam(NTPC)-Ludhiana(PG) -1
Bareilly-Unnao 1
Mau 200 MVA ICT 1
Kanpur(PG)-Mainpuri(UP)
Mandola(PG)-Narela(DTL) 2
Duni(RVPNL)-Kota(PG)
Balia-Bhiwadi Pole 2
Kota(PG)-Shree Cement(CSL)
Bassi-Kawai (temp.arrangment )
Agra-Jaipur South-2
Balia-Patna 3
Bhiwani-Dehar
Bareilly-Unnao 2
Jodhpur II(RVPNL)-Kankroli(PG) 1
Dhanonda(HVPNL)-Mohindergarh(Adani) ckt-2
Allahabad 315 MVA ICT 2
Debari(RVPNL)-RAPS B(NPC)
G.Noida 500 MVA ICT 4
Badarpur(NTPC)-Noida sec 20s(UP)
TOTAL
1
1
1
1
2
1
1
2
2
1
2
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
105
Annexure-III
The status of submission of progress of rectification of deficiencies
Utility
No. of Sub-stns/Switchyard covered Status submitted on
under BPA
UPPTCL
19 (400 kV Panki & 220 kV Panki S/s
considered as one and 765 kV Unnao
& 400 kV Unnao S/s considered as
one unit)
1st September, 2014
Current Status: Major rectification is completed. However the balance rectification works are
expected to be completed by end of March 2015. For replacement of some of the defective/obsolete
equipments, procurement action has been initiated/ is under initiation. Out of those, completion
schedule of some equipment has not been indicated though desired action has been indicated but
plan has not been indicated. The sub-station wise status of balance rectification of defects is as
under:
400 kV Agra:
(i) Replacement of static relays to numerical relays for ICT-I & II by October, 2014 (ii) Auto reclose
feature on 220 kV feeders by January, 2015 (iii) EL of both 400 kV & 220 kV are under procurement,
expected delivery be indicate;
400 kV Panki:
(i) 220 kV BBP Scheme is extension of 220 kV Panki S/s, Panel received and installed,
commissioning Engineer is awaited for commissioning of BBP Panel, expected by October, 2014 (ii)
EL under procurement by Oct.’14;
220 kV Panki: Separate status for this sub-station be given by UPPTCL.
400/220 kV Sarojini Nagar:
(i) A/R feature on 220 kV Raibareli (PG) line expected by Nov., 2014 (ii) All EL by March, ‘15 (ii) 2
nos. SF6 Bkrs (one for Bus Coupler & another for TBC) require to be replaced, expected by March,
’15;
400 kV Sultanpur:
(i) Replacement of 400 kV BBP expected by March, 2015 (ii) (a) PLCC panels for 400 kV Azamgarh
line (for Main-II) by Oct.’14, (b) PLCC for 220 kV NTPC Tanda 1&2 by March, ’15 and (c) PLCC for
220 kV Phoolpur end by March, ’15, (d) PLCC for 220 kV Sohawal line is operative from Sultanpur
end but ETL panel is defective from Sohwal end, expected by December, ‘14 (iii) A/R feature of
Azamgarh line is not functional, efforts are being taken to enable A/R feature (v) EL by March, ’15;
400 kV Unnao:
(i) Replacement of static relays on all 220 kV feeders by way of retrofitting by March, ’15 (ii) EL to be
replaced, requirement submitted. Expected time not given by UPPTCL, UPPTCL may indicate the
expected time to provide EL (iii) Bareilly-I & Bareilly-II are having REL relays and PGCIL-LKO-I &
PGCIL-LKO-II are having Old Micom relays, these relays are not having additional port and are
presently not time synchronized. UPPTCL may submit Action taken and expected time of completion;
400 kV Bareilly:
(i) Requirement of PLCC equipments on 220 kV lines other than 220 kV Pithoragarh and
Dhauliganga lines (i.e. for Shahjahanpur, Dohana, C.B Ganj lines) have been submitted,
commissioning expected by March, ’15 (ii) UPPTCL clarified that PLCC for Pantnagar line is to be
provided by PTCUL (iii) EL expected by March, ‘15 (iv) Time synchronization of 400 kV PGCIL line
(M-II relays) and 220 kV lines of NHPC are required by respective utilities. However, action taken by
UPPTCL to ensure installation by POWERGRID and NHPC has not been indicated (iv) Enhancing
capacity of battery charger for 48 V (20/50A) & 220 V (20/60A) and providing Testing equipment by
March, ‘15.
Action: (1) PTCUL to expedite installation of PLCC system on 400 kV Bareilly- Pantnagar line.
(2) Action needs to be taken by POWERGRID & NHPC for item appearing at (iv) above for
ensuring of time synchronization with GPS Clock.
220 kV Chinhat:
No issue is pending. Completed. No further action is required.
220 kV Moradabad:
(i) BBP testing completed, commissioning by Oct. ‘14, (ii) PLCC with protection coupler for 220 kV CB
Ganj feeder by March, ’15 (iii) LBB commissioning under progress expected commissioning by Oct.
2014 (iv) A/R feature of 220 kV Moradabad-Sambhal line by Oct. ’14 (two cards in PLCC cabinet at
Sambhal end are defective, sent to ABB for repair) (v) A/R feature for 220 kV CB Ganj shall be
enabled after commissioning of PLCC cabinet by March, ’15 and (vi) A/R feature of 220 kV
Moradabad-Nehtaur line at Moradabad end is not available, under procurement, commissioning
expected by March,’15 (vii) EL by March, ’15;
400 kV Moradabad:
(i) 400 kV DP relay (M2) of Kashipur line by December, 2014 (ii) EL by March, ’15;
400 kV Muradnagar:
(i) Retrofitting work of 3 nos. numerical relays on 220 kV lines (Muradnagar-I and Sahibabad - I & II)
is in progress and shall be completed by Oct., 2014, (ii) BBP of 220 kV by March, ‘15 (iii) PLCC
installation on 400 kV Muradnagar- Panki line shall be commissioned after shifting of Wave Trap and
CVTs expected commissioning by Oct. 2014 (iv) Commissioning of PLCC cabinets on 220 kV
Sahibabad-I & II and Muradnagar – I & II is expected by March, ’15, (v) After retrofitting of numerical
relays, LBB protection of all 220 kV feeders will be put in service by Oct. ’14, (vi) A/R feature of 400
kV Muradnagar – Panki line shall be enabled after shifting of Wave trap & CVTs as there is problem
in PLCC signal (vii) A/R features on 220 kV feeders are not available with old relays and will be
enabled after retrofitting of numerical DP relays by Oct. ‘14 (viii) EL by March, ‘15 (ix) GPS clock on
Agra (M2), Muzaffarnagar (M2) and 220 kV feeders are not time synchronized. For the same
retrofitting work of 220 kV relays is under progress and expected by Oct. ’14.
400 kV Gr. Noida:
(i) Old & damaged BBP (400 kV) shall be replaced by March, ‘15 & BBP (220 kV) old protection of 10
feeders shall be replaced with 16 feeders protection by March, ’15 (ii) PLCC system on 220 kV Sec20 and Sec-62 shall be installed & commissioned by March, ‘15(iii) LBB protection on 400 kV and 220
kV will be made functional with commissioning of BBP of 400 kV & 220kV by March, ‘15 (iv) A/R
feature on 220 kV by December, ‘14 (v) EL by March,’15 (vi) Synchronization of GPS clock with
Numerical relays of 400 kV Dadri (M1 & M2) & Navada (M1 &M2), 220 kV Sec-20 & Sec-62, DR & EL
by Dec. ’14;
400 kV Muzaffarnagar:
(i) BBP on 400 kV & 220 kV are not installed, expected by March, ‘15 (ii) PLCC system of 220 kV
Shamli line by Oct. ‘14 (iii) LBB (400 kV & 220 kV) protection shall be made functional with
commissioning of 400 kV & 220 kV BBP by March, ‘15 (iv) A/R feature of 220 kV MZN-Shamli and
MZN- Nanauta line are not working, as A/R facility is not available at Muzaffarnagar end, under
procurement, commissioning expected by by March, ‘15 (v) EL by March,’15;
220 kV Nara:
(i) BBP panel commissioning under progress, expected by October, 2014 (ii) PLCC system of 220
kV Nara-Roorkee line at Roorkee is not installed by PTCUL (LILO of Nara-Rishikesh was done at
Roorkee) expected by March, ’15 (iii) LBB Protection shall be commissioned with commissioning of
BBP by Oct. ’14 (iv) EL by March, ’15.
Action: PTCUL may ensure providing of PLCC system at Roorkee.
400 kV Sarnath:
(i) Retrofitting of balance 3 nos. DPP of 220 kV and 2 nos. DPP of 132 kV (non-numerical) relays
shall be completed by October,’14. (ii) 400 kV & 220 kV BBP are not working and under procurement,
expected commissioning by October, ‘14 (iii) PLCC system of (a) Allahabad PG-2 nos. (b) Sasaram
PG-1 no. to be made functional by POWERGRID and (c) Anpara L-3 & (d) Anpara L-5 both by
UPPTCL. PLCC Panel for item (d) Anpara (L5) has been received, expected commissioning of PLCC
of (L-5) by Sept., ’14 and of L-3 at (c) by Oct.’14 (iv) EL- by October, ‘14 (v) Replacement of 7 nos.
400 kV CBs and 5 nos. of 220 kV CBs is expected by October, 2014.
Action: POWERGRID to expedite early restoration of PLCC system of Allahabad (2 nos.) and
Sasaram (1 no.).
400 kV Gorakhpur:
(i) 3 nos. DPP of static relays shall be replaced with numerical relays on 220 kV lines including T/F by
October, ‘14. (ii) (a) Replacement of defective & obsolete 220 kV BBP is expected by October, ‘14 ,
(b) Though 400 kV BBP are functioning but are static (iii) PLCC system on 400 kV GorakhpurAzamgarh link and 220 kV lines shall be expected to be replaced by October, ‘14 (iv) EL by October,
‘14 (vi) Out of 3 nos. SF6 Bkr. 2 nos. have been replaced and third one no. 220 kV SF6 CB is also
replaced on 28.08.14.
400 kV Kasara (Mau):
(I) 400 kV BBP shall be expected to commission by October, 2014 (ii) Defective PLCC with protection
coupler of (a) 400 kV Mau - Balia PGI (M-I) & (M- II) - 2nos. need to be replaced by POWERGRID (iii)
EL by October, 2014 (iv) 1 no. of 400 kV CB has been received at S/s and commissioning by Aug.
’14. The requirement of 3 nos. old & Obsolete CBs has been sent, under procurement, expected
commissioning by October, ’14.
POWERGRID has reported that out of 2 nos. 400 kV Mau-Balia (M-I & M-II) lines, only Mau-I,
Channel-I was found defective and same has been rectified on 10.09.2014.
UPPTCL to report the status the functionality of PLCC for this sub-stn.
400 kV Azamgarh:
(i) 400 kV BBP is under procurement, likely to commission by October,’14 & 220 BBP received at s/s,
expected commissioning in Oct. ’14 (ii) LBB Protection (220 kV) shall be made functional by Oct. ’14
with commissioning of 220 kV BBP(iii) (a) Commissioning of PLCC system for 400 kV AzamgarhGorakhpur line ( 2 nos.) and (b) PLCC system for 400 kV Azamgarh - Sultanpur line at Azamgarh
end both by Sept, 2014 (iv) EL by October,’14, 2014 (v) Commissioning of remaining 05 nos. 400 kV
CBs shall be replaced by October, 2014.
220 kV Fatehpur:
(i) (a) 1 no. 220 kV DPP of numerical type has been tested and shall be commissioned in Sept. ’14
(b) 2 nos. DPP of 132 kV is expected to be replaced by Sept. ‘14 (ii) 220 kV BBP panel received
expected commissioning in Sept. ’14 (iii) PLCC with protection coupler on 220 kV is available,
commissioning expected by Sept. ’14 (iv) LBB protection for 220 kV will be replaced by Sept.’14 (v)
A/R feature on 220 kV will be expected to make functional by October,’14 (vi) EL by October, ‘14 (vii)
1 no. of 220 kV and 2 nos. of 132 kV DPP relays are not synchronized with GPS clock because of
non numerical. These will be synchronized after replacement with numerical DPP in Sept, ’14 (viii)
Distance/Time co-ordination of PGCIL-I/II and Unchahar-I/II & 160 MVA-I expected to be completed
by Sept. ’14 (ix) Replacement of 2 nos. 220 kV CBs (old & Obsolete) by October, 2014, (x) Breaker
timing measurement of Unchahar-I and 160 MVA T/F by end of Sept. ’14.
UPRVUNL
4
19.08.2014
Major rectification works completed. Balance rectification are expected to be completed by
September, 2014. The current status is as under:
Anpara: (i) PLCC panels in remaining lines L-3 by Oct.’14 & L-5 by Sept.’14 shall be taken up by
UPPTCL (AS reported by UPPTCL).
Action: UPPTCL to restore the PLCC system at earliest.
Obra ‘A’ : - (i)Time synchronization with GPS clock expected to complete by Nov.’14, (ii) BBP panel
expected to complete by Nov.’14. (iii) PLCC restoration by UPPTCL.
Action: UPPTCL to restore the PLCC system at earliest.
Obra‘B’: Observations of deficiencies rectified and Completed.
Harduaganj: (i) Rectification of E/F in DC system is expected to complete by Oct.’14, (ii) BBP shall
be made functional by Oct.’14, (iii) Restoration of PLCC by UPPTCL.
Action: UPPTCL may ensure early restoration of PLCC system.
RRVPNL
8
01.08.2014
Major rectification works has been completed. The balance rectification are expected to be completed
by July, 2015. The current status is as under:
220 kV GSS Bhilwara: Protection related deficiencies is rectified and no issue is pending. Hence,
completed.
220 kV GSS Khetrinagar: Protection related deficiencies are rectified and no issue is pending.
Hence, completed.
220 kV GSS Sakatpura (Kota): Defects rectified. No action is required.
400 kV GSS Bhilwara: (i) Presently only one DC source is available for 220 kV & 132 kV system
i.e.220 V & 110 V respectively. RRVPNL on this account has stated that no action is required as
there is a provision of single source for 220 kV GSS, (ii) For 400 kV & 220 kV CTs, DGA of oil of CTs
will be carried out within one month i.e. Sept.’14, (iii) All 390 kV LAs of Line Reactor to be replaced by
336 kV LAs. RRVPNL stated that no action is required in this regard.
400 kV GSS Jodhpur: (i) Merta – I main BHEL breaker (452) having hydraulic system problem shall
be rectified within a month i.e. Sept.’14, (iii) The problem in Protection channel-I of 400 kV JodhpurKankroli feeder is from Kankroli end and PGCIL is being pursued for the same
POWERGRID informed that the line losses are very high in 400 kV Jodhpur-Kankroli
line, low SNR problem, maximum AGC obtained is 20. Hence, POWERGRID has
decided to upgrade ETL 41 to ETL-81 panel. Panel received and Service Engineer
arrived on 17.09.2014 for commissioning.
RRVPNL to report the status the functionality of PLCC for this sub-stn.
400 kV GSS Mertacity: (i) 220 kV Bus-bar protection scheme is under up-gradation for which Panel
is available and M/s AREVA & M/s SREX were requested for erection and commissioning, expected
commissioning by Feb.’15 (ii) The commissioning of Emulsifire system of ILT-2 shall be completed in
six months i.e. Feb. ‘15.
400 kV GSS Ratangarh:. (i) All the relays except Siemens make relays shall be GPS time
synchronized within 3 months (i.e. Feb. ’15) (ii) DR facilities in transformer shall be completed within
6 months (i.e. Feb. ’15) (iii) Overhauling of pneumatic drives of all CBs will be done within 3months
(i.e. Nov. ’14) and (v) Bus bar protection scheme for 400 kV shall be completed in one year and for
220 kV within 2 years (i.e. by Aug. ’15 & Aug.’16 respectively ).
400 kV GSS Heerapur: Completed. No action is required.
RRVUNL
2
Suratgarh- 19.08.14 and
Kota- 16.09.2014
Suratgarh STPS: Major rectification works have been completed. However, following are to be
completed:
(i) In 400 kV Ratangarh- 1 & 2 feeders, A/R facility is not put in services because E/F on these two
feeders persists due to defective insulator strings and A/R further stress the equipments. Reason
thereby A/R cann’t be put in service until replacement of defective insulator strings, (ii) Norms for 2nd
source of DC supply is applicable to new sub-stns and Suratgarh is commissioned way back in 1997
and hence not need to place (iii) DR will be made available by Sept.’14.
RRVUNL to update status as DR was expected by Sept.’14.
Kota STPS: (i) Replacement of balance static distance protection relays for 220 kV Gulabpura &
Beawar by Aug.’14; Heerapur, Sanganer & Sakatpura- I&II feeders by march ’15 (ii) Main-II
protection relays of Sakatpura # I & II feeders subsequent to are expected to complete by March,’15,
(v) Main-II protection relays of Sakatpura # I, II, III & IV feeders by March,’15, (iii) GPS facility and EL
by March,’15 (iv) PLCC system with protection coupler for 220 kV Gulabpura-Beawar line needs to be
rectified by RRVPNL, (v) DR for 220 kV sakatpura- I, II ,III & IV line by March, ‘15
Action: RRVPNL may restore PLCC system with protection channel of 220 kV Gulabpura –
Beawar line.
August, 2013
HVPNL
1
Kirori S/s: Rectification completed. No action is required.
06.08.2014 (for PTPS-I) &
07.08.2014 (PSTP-II # 5 & 6 , 7
& 8)
PSTP-I : (i) Main-I & main-II on different DC source by 31.03.2015, (ii) GPS system by 31.03.2015
(iii) Replacement of ABCBs on 220 Sewah 1,2 & 3 and Sonepat 1 & 2 with SF6 CBs by 31.03.2015
(iv) New SF6 CBs will be enabled of A/R features by 31.03.2015.
PSTP-II (#5&6, 7&8) : (i) Ensuring of Carrier Protection Coupler on feeders Rohtak 1&2 and Karnal
lines in case of feeders are connected with grid, the issue is being pursued with HVPNL(ii) Time
synchronization with GPS clock by March,’15, (iii) Numerical DPR relays for retrofitting of Karnal,
Nissing -& 2, Safidon-I are completed, balance of Safidon-2 and Rotak –line are with one numerical
relay, Main-2 on these will be placed by March, ’15.
HVPNL vide Memo no.Ch-63/PC-4/Vol-V/SLDC/OP dt. 17.09.2014 has informed that the carrier
protection coupler of 220 kV Rohtak-PTPS Ckts. and 220 kV Karnal-PTPS lines are in working
condition.
HPGCL, Panipat to confirm that speech channels of both lines is in working order.
PSTCL
3
21.08. 2014
The defects fall under category-A have been attended. The defects under Category-B shall be
completed by 31.08.2014 except CIT schemes which shall be completed likely by 31.03.2015.
HPGCL
3
PSPCL
1
April, 2014
The balance installation/rectification of numerical Distance Protection relays and GPS synchronizing
of Main-2, Distance Protection relay expected to complete by May 2014.
DTL
1
16.09. 2014
(i) E/F in DC system almost completed (eliminated), (ii) Procurement of Numerical distance protection
relays for 400 kV & 220 kV system is under process expected to complete the rectification of related
defects in DPP and providing EL and DR by Dec.’14, (iii) Replacement of Battery set by Dec.2014.
POWERGRID reported that PLCC system with protection coupler to Mandola sub-stn is not working.
Action: DTL may restore the PLCC system.
HPSEB Ltd.
1
09.09. 2014
(i) Installation of 220 V DC Battery as second source, (ii) “+ve” terminal of battery terminal earthed
still prevalent after availing s/d of 220 kV Kunihar- Bhaba Ckt-I & II. Complete S/D of whole 220/132
kV Yard will be taken to restrict E/F
(iii) 220 kV numerical Bus Bar relay (iv) Disturbance Recorder, (v) Event Logger, (vi) GPS system
(vii) Protection Coupler. Sl.no. (iii) to (vii) shall be procured.
HPSEB Ltd. conveyed earlier that all efforts shall be made for rectification by November, 2014
except defects at sl.no. (ii).
PTCUL
2
May,2014
Rectification of balance work is expected to complete by November 2014
UJVNL
1
November, 2012
Latest status not known. Though during 98th OCC meeting UJVNL informed that they would submit
the latest status of rectification as well as target completion but no information is received by NRPC
Secretariat. During this OCC meeting no Representative from UJVNL attended the meeting.
PDD, J&K
3
November, 2012
Latest status not known. No Representative from PDD,J&K attended this OCC meeting.
BBMB
7
11.09.2014
Major work is completed. The balance work of rectification of protection related deficiencies
is under progress and expected to complete by March, 2015.
However observation related to civil work “Water logging in cable trenches at 220 kV Ch.
Dadri” and “Service road in switchyard area at Ch. Dadri” will be expected to complete by
June, 2015.
The balance work (i) replacement of Static to numerical DP relays (ii) Main-I & Main-II DP
scheme of different make/characteristic, (i) & (ii) by Sept.’14 (iii) Protection in 220 V DC
system at Jamalpur by Oct.’14, (iv) Synchronizing Trolley at 220 kV Jamalpur and MISS
Ganguwal and (v) PLCC system for 220 kV Ganguwal, both (iv) & (v) by Nov. ‘14 (vi) A/R
feature of SF6 CB at 400/220 kV Dehar by Dec. ’14, (vii) EL by Mar. ’15
POWER
46
18.09. 2014 (NR-I) &
GRID
20.08.2014 (NR-II)
 UPPTCL to coordinate with POWERGRID for commissioning of PLCC panels at both ends of
220 kV Jhusi-Phoolpur line Which are available at both ends. Regarding enabling of PLCC
system on 220 kV Allahabad- Rewa Road-I & II, the PLCC equipments commissioned at both
ends and UPPTCL to provide Wave traps at Rewa end and Wave trap to be wired with
Distance Protection Relay.
UPPTCL to expedite the following works to enable PLCC system and A/R feature on 220 kV
Allahabad-RewaRoad-I & II
1. Wave trap at 220 kV Allahabad-Rewa road I&II to be provided. Wave trap to be wired with
relay.
2. New DP relays to be provided on 220 kV Allahabad-Rewa Road- I&II to enable A/R scheme.
DP
UPPTCL reported that time synchronization of Main-II relays on 400 kV PGCIL lines to UPPTCL’s
lines at Bareilly are not done.
Action: POWERGRID need to attend and rectify time synchronization with GPS clock.

UPPTCL reported that the PLCC system of 400 kV Allahabad- Sarnath lines (2 nos.) and
Sarnath - Sasaram (1 no.) line need to be restored by POWERGRID.
Action: POWERGRID need to restore PLCC system as above.

UPPTCL reported that POWERGRID’s PLCC system of 400 kV Kasar (Mau) - Balia (M-I) &
(M-II) - (2 nos.) need to be restored by POWERGRID.
POWERGRID informed that defects have been rectified on 10.09.2014.

UPPTCL has reported that Main-II relays of 220 kV lines coming from Tanakpur to UPPTCL’s
Bareilly S/s are not time synchronized and need to be rectified.
Action: POWERGRID
POWERGRID (NR-I) has completed the other rectification of deficiencies work. However,
POWERGRID need to resolve the issues of PLCC related deficiencies at other utilities end.
POWERGRID (NR-II) has also completed the rectification of protection related deficiencies except
issues of PLCC related to SJVNL.
10
19.08.2014
NTPC
Majority of rectification works have been completed. However, rectification linked to procurement is
expected to complete by December, 2014. A brief of status of balance rectification/replacement is
placed below:
Auraiya:
Anta:
Tanda:
1. Main-I & Main-II 1. Protection Coupler on 220 kV MPPTCL 1. BBP and LBB for all feeders
DPP of different lines to be provided by MPPTCL. No – Panels received except
make/characteristic- response from MPPTCL. Issue needs to be control
cable.
Panel
31.12.’14.
resolved thro’ WRPC forum.
commissioning
started.
By
NRPC Secretariat has taken up issue 31.12.’14.
through WRPC forum.
2. PLCC with protection coupler
of all lines are owned &
maintained by UPPTCL. These
Action: MPPTCL.
are 220 kV Tanda-Sultanpur- I
& II. As per UPPTCL, these
shall be expected to complete
by March ’15.
Dadri
Gas
Thermal:
&
1.Electromechanical
protection relay for
transformer
by
numerical
relay
shall be replaced by
Dec.’14.
Action: UPPTCL may expedite
early restoration.
Unchahar:
400/220 kV DadriS/s:
1. PLCC on 220 kV Fatehpur-2 line shall be 1. 400 kV Panipat-1 line does
commissioned by UPPTCL.
not have GPS synchronization
facility. New relay shall be
2. Replacement of balance static DP for 220 retrofitted by Dec.’14.
kV Kanpur lines -1,2,3 & 4 by Dec. ’14.
2. Panipat –I line one relay
3. A/R feature on Kanpur-1,2,3 & 4 lines by shall be replaced of different
Dec.’14.
make/characteristic by Aug.’14.
Action (Item 1): UPPTCL may commission
PLCC system on 220 kV Fatehpur-2 line.
Singrauli:
Vindhyachal:
Rihand:
1. Main-I & Main-II Completed. No further action required.
of
different
Make/characteristic
for Allahabad-! & 2,
Anpara, Rihand-II
and
Vindhyachal
HVDC-I & II lines –
October,’14.
1.Replacement
of
balance
static
DP
Relays
with
Numerical relays - Dec.’14.
NHPC
10.09. 2014
8
2.DR for 400 kV Singrauli- 1&2
feeders. - Dec.’14
Major rectification works have been completed However, status of balance works expected to
complete at different Power House is given below:
(i) Redundancy of 48 V DC source need to be ensured. NHPC however stated
Chamera-II
that it is not required right now.
NHPC to comply with the observation in view of redundancy required.
Completed. No action is required.
Uri-I
All distance relays of numerical type and Main-I & II should be of different
Chamera-III
make/characteristics shall be replaced in future.
NHPC to comply the observation.
(i) 48 V Battery bank-II expected to complete by November, ‘14
Chamera-I
(i) 220 kV CB Ganj Bareilly & Sitarganj lines having Main-I &II Numerical relays
Tanakpur
of quadrilateral characteristics expected by December, ‘14 (ii) Numerical relays
for132 kV Mahender Nagar line and in place of existing electromechanical B/B
protection relays of 220 kV Bus with DR & Time synchronization features are
expected to complete by Dec. ‘14. (iii) PLCC speech channel of 220 kV
Bareilly line and 132 kV Mahender Nagar line to be restored by POWERGRID.
Dhauliganga
Salal
Dulhasti
SJVNL
E/F in DC System
PLCC System
POWERGRID informed that the speech channel of Tanakpur-Bareilly line
has been rectified on 10.08.2014.
Action:
Regarding maintaining PLCC communication for 132 kV
Tanakpur- Mahendernagar line, POWERGRID requested NHPC to
establish with documents that PLCC system of this is to be maintained
by POWERGRID.
(i) Main-I of DHG-I & II lines shall be time synchronized. NHPC informed that
the Issue has been taken up with Alstom.
NHPC informed that
restoration work of Dhauliganga would be
completed by September,’14.
New GPS system is under procurement and is expected by October, 2014.
(i) Alstom, France make GIS model T-155 is claimed obsolete technology.
Accordingly (a) purchase of Surge Arrestor along with accessories is in
tendering stage, expected completion by Aug.’15 (b) Purchase of Spare parts
of GIS is under process, budgetary offer received from OEM and is under
procurement (ii) BPL make PLCC panels of 400 kV Dulhasti- Kishenpur line
has mal-operated many times. The issue needs to be resolved with BPL by
POWERGRID. This has been taken up with POWERGRID for early resolution.
POWERGRID informed that defective cards are under procurement from
BPL and shall be made operational once cards are available.
1
12.09.2014
The E/F on DC System shall be rectified during lean season’s starts from
October,’14 and likely to complete by December, ’14.
BPL PLCC Exchange is not working due to defective cards in said Exchange
from POWERGRID side. It plays a communication link between Karcham Dam
& NJPC C/R.
Further, the Wide Band Phone 500402 which plays a vital communication link
between NRLDC & NJHPS, is not working since last many months.
THDC
Work completed.
NPCIL
POWERGRID informed vide their mail dt.11.09.14 that their Engineer had
visited Bhawana to attend voice communication via PLCC of Jhakri. He
found communication to Abdulapur, Panchkula & Bhawana are O.K. The
Site Engineer suggested to check at NRLDC Exchange but NRLDC did
not allow to check wiring at NRLDC. Since, non-permission by NRLDC,
matter is kept pending.
POWERGRID (NR-II) requested to do needful in this regard.
07.07. 2014
1
1
22nd August, 2014
GPS clock is under procurement. Subsequent to supply and commissioning expected by
October, 2014, DR etc shall be time synchronized..
Lanco Power
1
No deficiencies observed. No action is required.
JPVL
3
Deficiencies rectified. No action is required.
July, 2013
Annexure- IV
Third Party Protection Audit
Anticipa
ted/Targ
et
completi
on of
protecti
on audit
8 months
Substations/
Switchyard
s covered
in Basic
Protection
audit
220 kV-4
440 kV-4
Proposed
no. of S/s
or S/y for
Protection
Audit
Agency
carrying
out
Protection
Audit
220 kV-39
400 kV-5
CPRI
220 kV-56
400 kV- 7
220 kV-1
(Kirori)
220 kV-5
(Tepla,
Bastara,
Masudpur,
Sector-72
Gurgaon &
A-5
Faridabad)
From panel of
Protection
Experts
formed by
NRPC
-
PSTCL
220 kV-71
220 kV-3
(Sarna,
Ajitgarh &
Govindgarh
)
220 kV-11
From CPRI
-
DTL
220 kV-30
400 kV-3
400 kV-1
(Bamnauli)
220 kV-25
From panel
of Protection
Experts
formed by
NRPC
-
S.
No
Constitue
nt(s)/
Utility(s)
Total no. of
Substations
and
Switchyard
s
1
RRVPNL
132 kV-351
220 kV-86
400 kV-9
2
HVPNL
3
4
Status/Remark, if
any
TPA of KSTPS &
SSTPS has been
carried out by CPRI
and after examination
of
audit
report,
RRVPNL
is
in
correspondence with
CPRI
on
the
deficiencies pointed
out by them.
RRVPNL
that
submitted
the
Protection Audit report
carried out by CPRI
TPA of Sector-72,
Gurgaon and A-5,
Faridabad has been
carried out and report
submitted.
Further,
HVPNL
proposed
TPA of Tepla &
Bastara sub-stations.
NRPC
Secretariat
issued
order
for
protection audit of
these two nos. Substns. on 25.04.2014.
This order had been
revised
on
08.09.2014
as
previous
team
formed for audit of
above s/s could not
carry out the Audit
In 96th meeting, it was
intimated that work
including those of
PSPCL stations has
been awarded to
CPRI.
In 95th OCC meeting,
DTL had submitted list
of 25 nos. 220 kV S/s
identified for TPA. Out
of these TPA of 400
kV Mundka and 220
kV Shalimarbagh has
been
carried
out.
Further,
DTL
proposed
TPA
of
Rohini-I & Mehrauli
5
HPSEB
Ltd.
220 kV-8
220 kV-1
(Kunihar)
220 kV-7
From panel
of
Protection
Experts
formed by
NRPC
6
UPPTCL
132 kV- 276
220 kV-73
400 kV-14
765 kV-1
220 kV-3
400 kV-14
220 kV-41
CPRI
-
7
PTCUL
132 kV-26
220 kV-6
400 kV-2
400 kV-2
220 kV- 4
132 kV- 1
From NRPC
Team of
Protection
Experts
-
(i) 220 kV
Roorkee,
(ii) 220 kV
Hardwar
(SIDCUL),
(iii) 220 kV
Pantnagar
(SIDCUL),
(iv) 220 kV
Kamluaganja
& (v) 132 kV
Majra.
Protectio
n audit
carried
out on
20.05.20
14
sub-stations. NRPC
secretariat
issued
order
on
25.045.2014for
protection audit of
these two nos. Substns.. TPA of Rohini-I
and Mehrauli substations has been
completed
on
13.05.2014
&
15.05.2015
respectively.
HPSEBL
submitted
the list of remaining 7
nos.
Substation
including
220
kV
Jassure Substation for
TPA.
HPSEBL
proposed
TPA
of
Jassure & Baddi substations.
Protection audit of
220 kV Jassure S/s
was carried out by
team of Protection
Experts nominated by
NRPC
Sectt.
on
20.05.2014.
Team
has submitted the
report.
TPA of 41 nos. Substations has been
awarded to CPRI on
22.01.2014 with the
completion period of
one year.
PTCUL vide letter no.
78/CE(P)/PTCUL
dated 18.01.2014
requested to arrange
TPA of 5 sub-stations.
In 98th
meeting,
PTCUL proposed TPA
of
Roorkee
&
Haridwar
(SIDCUL)
sub-stations
on
priority.
NRPC
Secretariat
issued
order for protection
audit of Roorkee and
Haridwar
(SIDCUL)
Sub-stns.
on
25.04.2014.
This
order
had
been
revised
on
08.09.2014
as
previous
team
formed for audit of
above s/s could not
carry out the Audit
8
UPRVUNL
9
RRVUNL
10
HPGCL
220 kV-5
400 kV- 2
220 kV-2
(Obra &,
Harduaganj
)
400 kV-2
(Anpara,
Obra-‘B’)
220 kV-2
(KTPS,
STPS)
220 kV-4
(Panipat,
Khodri &
Yamunanag
ar)
220 kV-3
(Panipat &
Khodri)
220 kV-3
CPRI
Anticipat
ed
completi
on time-6
months
Generating
Stns-4
CPRI
8 months
Yet to be
identified
No
information
-
Order placed on CPRI
for
TPA
on
17.08.2013 in respect
of Parichha TPS and
on
07.08.2013
in
respect of Panki TPS.
S/Y of Parichha TPS
audited from 26th -28th
November, 2013 and
S/Y of Panki TPS
audited
from 30th
November, 2013 – 2nd
December,
2013.
Reports are awaited
from CPRI.
representative
of
RRVPNL
informed
that protection audit
of KTPS & STPS &
DCCPP has been
completed.
TPA
Reports
submitted
vide
letter
dt.
17.12.2013.
However,
DCCPP
vide
letter
dt.
31.01.2014
has
informed that CPRI
had collected data of
Gen. Trafo., testing of
Battery banks and
PLCC signals.
SE(O),
NRPC
requested to share
the report of PA. The
representative
of
RRVUNL
informed
that the clarification
has been sought for
on observation from
CPRI.
Giral Lignite Power
Ltd., Barmer, has
submitted a copy of
report of TPA done by
CPRI of Units # I & II.
HPGCL had requested
to take action for TPA
of
balance
Gen.
Plants. Accordingly,
NRPC would form a
TPA team to audit the
Generating stations of
HPGCL.
NRPC vide letter dt.
2nd May, ’14 issued
authorization to carry
out protection audit of
DCRTPP, HPGCL
SE,
DCRTPP,
11
PSPCL
220 kV-3
220 kV-1
(Ropar)
12
UJVNL
132 kV-3
220 kV-3
220 kV-1
(Khodri)
13
PDD, J&K
132 kV-51
220 kV-10
220 kV-3
14
BBMB
17 nos. 220
kV S/s and
S/y
3 nos. 400
kV S/ss
400 kV- 3 at
Panipat,
Bhiwani &
Dehar
220 kV- 4 at
Jamalpur,
Samaypur,
Ch. Dadri &
Ganguwal
Yamunanagar
informed
that
the
team constituted by
NRPC
Secretariat
carried out protection
audit on 05.05.2014.
TPA awarded to CPRI
in the order of PSTCL.
03
Generating
stations
1. 132 kV
Chilla
Power
House
Switchyard
CPRI
-
Proposal for
Chilla
received
from CPRI.
-
2.
Remaining
Switchyard
proposed to
be carried
out by
NRPC team
of
Protection
experts.
Yet to be
identified
Balance by
NRPC team
of
Protection
Experts.
UJVNL had intimated
in 94th OCC meeting
that the offer from
CPRI has been
received for Chilla PH.
UJVNL was requested
to intimate the latest
status of TPA
regarding award to
CPRI.
-
17nos.-220
kV,
3 nos.-400
kV
CPRI.
(Award
placed on
20.05.2013)
PDD,
J&K
was
requested to intimate
as to how they
propose for TPA
The work of data
collection for analysis
by CPRI of all the
sub-stations/Grid
stations of BBMB has
been completed. The
ETE testing of the four
transmission lines is
also completed during
December
2013.
However the work like
checking
the
healthiness of DC
Systems, PLCC and
FOC
is
under
progress by CPRI
team. The work is
likely to be completed
by end of April 2014.
In this meeting, the
Representative
of
BBMB informed that
the work has been
completed
during
May, ’14 and the
report shall be shared
in the next Protection
sub-committee. It is
also informed that the
observation
of
deficiencies is already
underway
of
rectification.
No
information
1 year
(April,
2014)
15
POWERG
RID
220 kV-3
400 kV-43
(incl. of 3 of
765 kV)
765 kV-8
HVDC-5
220 kV-1
400 kV-9
132 kV-1
220 kV-5
400 kV-4
No
Proposal
-
-
-
220 kV-1
400 kV-9
220 kV-4
400 kV-4
Not
required
1 (220 kV
Baira Siul)
-
-
No action required.
Team of
Protection
Experts from
POWERGRI
D & HPSEB
Ltd.
nominated
by NRPC
-
CPRI
July,
2014
Team nominated by
NRPC has carried out
TPA at Baira Siul.
NHPC informed that
TPA was completed
on 5th December,
2013. NHPC intimated
the
nature
of
deficiencies observed
and
action
plan
submitted to rectify
the deficiencies. As
per
action
plan
deficiencies shall be
expected to rectify by
May,
2014
December, 2014.
The representative of
THDCIL informed in
this OCC that TPA
has been awarded to
CPRI with completion
schedule of 06
months i.e. by July
2014.
No action required.
400 kV-33
765 kV-6
HVDC-5
16
NTPC
17
NHPC
18
THDC
400 kV-2
(Tehri &
Koteshwar)
400 kV-1
(Tehri)
400 kVKoteshwar
19
SJVNL
400 kV-1
Not
required
-
-
20
NPCIL
400 kV- 1
(Nathpa
Jakri)
220 kV-4
400 kV-1
220 kV-1
(NAPS)
From panel
of
Protection
Experts
formed by
NRPC
(proposed)
-
TPA has been carried
out by the team of
protection experts and
point wise clarification
on
observations
submitted by NPCIL.
21
APPCL
400 kV-1
400 kV-1
RAPS-‘A’,
‘B’ & ‘C’
(1x200 MW
generating
unit with
1x200 kV
switchyard,
2x200 MW
generating
units with
1x200 kV
switchyard
& 2x200
MW
generating
units with
1x200 kV &
1x400 kV
Switchyrds)
400 kV - 1
From panel
of
Protection
Experts
formed by
NRPC
(proposed)
-
TPA has been carried
out by the team of
protection experts and
point wise clarification
on
observations
submitted by APPCL.
22
23
Lanco
Power
JPVL
765 kV-1
(Anpara’C’)
400 kV-3
765kV-1
24
AD Hydro
220 kV-1
-
25
Rosa
Power
400 kV - 1
220 kV-1
400 kV- 1
220 kV- 1
26
JPL
Power Ltd.
400 kV CLP
Jhajjar
Switchyard
-1
400 kV-3
400 kV
Switchyard
-1
Not
required
Not
required
Proposed
from CPRI
Proposed
from CPRI
Proposed
from NRPC
team of
Protection
Experts
-
-
Not required
-
-
Not required
-
-
-
Offer from
CPRI
received.
Award
under
process
-
Order
issued by
NRPC
Secretariat
-
The representative of
Rosa
Power
had
intimated that they
had received offers
from CPRI. Work
order placed. CPRI
visited the power plant
and
collected
all
relevant
documents
on 30.05.2014. Rosa
power handed over all
requisite information
to CPRI.
In 28th NRPC meeting
held on 26.04.2013,
JPL
Power
had
requested that their
400 kV Switchyard,
Jhajjar be audited by
pool of protection
experts formed by
NRPC
Secretariat.
Accordingly,
NRPC
Secretariat
issued
order for carrying out
protection audit of the
above switchyard on
08.09.2014.
Annex-V
Units required
Units
Units operating Units operating Units exempted Units applied to
to operate
operating
under FGMO
with
from RGMO/
CERC for
under RGMO/ under RGMO with manual
inoperative
FGMO by
exemption/
FGMO as per
control to
governor
CERC
extension
IEGC
achieve RGMO
/locked
governor
S.No.
Power Station
1
1
CENTRAL SECTOR
NTPC (Thermal)
1
Badarpur TPS
2
3
4
5
6
7
8
9
10
11
12
Singrauli STPS
Rihand STPS
Dadri NCTPS
Unchahar-I TPS
Unchahar-II TPS
Unchahar-III TPS
Tanda TPS
Anta GPS
Auraiya GPS
Dadri GPS
Faridabad GPS
APCPL
13 Indira Gandhi STPS
14
15
16
17
18
19
20
21
22
23
No of
units
4
Installed
Capacity
3x95 + 2x210
5
5x200 + 2x500
2x500+2x500
4x210+2x490
2x210
2x210
1X210
4x110
3x88.71+1x153.2
4x111.19+2x109.3
4x130.19+2x154.51
2x137.76+1x156.07
7
4
6
2
2
1
4
4
6
6
3
3x500
3
3x60
3x115 + 3x115
3x40
3x180
3x100
3x77
4x120
4x70
3x130
3x40
3
6
3
3
3
3
4
4
3
3
Unit size
2
NHPC
Bairasiul
Salal
Tanakpur HPS
Chamera-I HPS
Chamera-II HPS
Chamera-III HPS
Uri HPS
Dhauliganga
Dulhasti
Sewa-II
3
5
6
7
8
9
10
11
705.00
2
0
0
2
0
2
2000.00
2000.00
1820.00
420.00
420.00
210.00
440.00
419.33
663.36
829.78
431.59
7
4
6
2
2
1
0
0
0
0
0
2
4
6
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0
3
3
0
0
0
0
180.00
690.00
120.00
540.00
300.00
231.00
480.00
280.00
390.00
120.00
0
0
0
3
0
3
0
4
0
3
0
0
0
3
0
0
0
0
0
3
0
0
0
0
0
3
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1500
Reason for
seeking
exemption/
extension
status not
available
12
Remarks
13
Mechanical
governors
Mechanical
governors
14
*
ROR Scheme
NLC
24
Barsingsar (NLC)
2x125
2
250.00
0
0
0
0
0
0
25
SJVNL
Nathpa Jhakri HPS
6x250
6
1500.00
6
0
6
0
0
0
THDC Ltd.
26
27
Tehri HPP
Koteshwar HPS
4x250
4x100
4
4
1000.00
400.00
4
4
4
4
0
0
0
0
0
0
0
0
28
29
30
31
NPC
RAPS-A
RAPS -B
RAPS-C
NAPS
1x220
2x220
2x220
2x220
1
2
2
2
220.00
440.00
440.00
440.00
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
111
19880.06
54
34
13
7
0
7
15
11
3
2
1
JOINTLY OWNED (BBMB)
Bhakra (left + right)
2
3
Dehar
Pong
4
Total BBMB
Delhi
Indra Prastha Gas station
5
Pragati GasTurbines
6
Bawana
7
Rajghat TPS
Central Sector
8
9
HPGCL
Panipat TPS
DCRTP(Y'Nagar)
10 RGTPP Hissar
Himachal Pradesh
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Giri Bata HEP
Larji HEP
Bhabha (Sanjay) HEP
Bassi HEP
J&K
Baglihar
Lower Jhelum
Upper Sindh‐II
Punjab
Ranjit Sagar HPS
Anandpur Sahib HPS
Mukerian HP
Shanan(Jogindernagar) UBDC
GNDTP Bhatinda
GGSSTP Ropar
GHTP L' Mohabbat
Nuclear units
-do-do-do-
0
0
2
5x(108+157)
10
1325.00
10
0
10
0
0
0
6 x 165
6x66
6
6
990.00
396.00
0
6
0
0
0
6
0
0
0
0
0
0
6x30+3x30
9
270.00
0
0
0
0
0
2x104+1x122
3
330.00
0
0
0
0
0
Gas based station
4x216+2x253
6
1370.00
0
0
0
0
0
2x67.5
2
135.00
0
0
0
0
0
Gas based station
Coal based < 200
MW
2x210+2x250
4
2
2
920.00
600.00
1200.00
4
2
2
4
0
2
0
0
0
0
2
0
0
0
0
2X30
3X42
3x40
4x15
2
3
3
4
60.00
126.00
120.00
60.00
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3x150
3x35
3x35
3
3
3
450.00
105.00
105.00
3
0
0
0
0
0
0
0
0
3
0
0
0
0
0
4x150
4x33.5
6x15+6x19.5
4x15+1x50
3x15+3x15.45
4x110
6x210
2x210+2x250
4
4
12
5
6
4
6
4
600.00
134.00
207.00
110.00
91.35
440.00
1260.00
920.00
4
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2x300
2X600
6
4
Pondage less
than 3 hours
Gas based station
0
0
0
ROR
ROR
ROR
ROR
0
0
0
ROR
ROR
ROR
ROR
ROR
ROR
Rajasthan
26
27
28
29
30
31
32
Kota TPS
Suratgarh
Chhabra
Jawahar Sagar
Rana Partap Sagar
Giral TPS
Rajwest
33
Dhaulpur CCPP
34
Mahi HEP
35
36
37
38
39
UP
Anpara TPS
Obra TPS
Paricha
Harduaganj - D
Panki thermal
40
41
42
43
Khara HEP
Matatila HEP
Obra HEP
Rihand HEP
44
45
46
47
48
49
50
51
52
53
UJVNL, Dehradun
Chibro PS
Khodri
Chilla
Tiloth (MB-I) PS
Dharasu (MB_II) PS
Ram ganga
Dhalipur
Dhakrani
Kulhal
Khatima
2x110+3x210+2x195
2x250+2x250+2x250
2x250
3x33
4x43
1x125+1x125
8x135
7
6
2
3
4
2
8
1240.00
1500.00
500.00
99.00
172.00
250.00
1080.00
3
6
2
3
4
0
0
3
6
2
3
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2x110+1x110
3
330.00
0
0
0
0
0
0
2x25+2x45
4
140.00
4
4
1630.00
1550.00
1140.00
500.00
220.00
5
5
4
2
0
1
1
4
2
0
0
0
0
0
0
4
4
0
0
0
0
0
0
0
0
0
0
0
0
0
3x210 + 2x500 5
5x50+3x100+5x200 13
2x110+2x210+2x250 6
2x250 2
2x110 2
3x24
3x10.2
3x33
6x50
3
3
3
6
72.00
30.60
99.00
300.00
0
3
3
6
0
0
0
0
0
3
3
6
0
0
0
0
0
0
0
0
0
0
0
0
4x56.7
4x30
4x36
3x30
4x76
3x66
3x17
3x11
.3x11.25
3x13.8
4
4
4
3
4
3
3
3
3
3
226.80
120.00
144.00
90.00
304.00
198.00
51.00
33.00
33.75
30.00
4
4
4
3
4
3
3
3
3
3
4
4
4
3
4
3
3
3
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
232
24407.5
125
33
80
25
32
4
13
4
0
0
2 x 660
3x100
4x250
2
3
4
1320.00
300.00
1000.00
2
3
4
2
0
0
3
4
0
0
0
0
0
0
4x100
2x43
2x96
4x300
2x45
2x45
2x45
2x45
2x45
2x600
4
2
2
0
2
2
4
0
2
2
4
0
0
0
0
0
0
0
0
0
0
0
0
2
400.00
86.00
192.00
1200.00
90.00
90.00
90.00
90.00
90.00
1200.00
2
2
33
6148
19
12
7
0
0
0
Total State
1
2
3
4
5
6
7
8
9
10
11
12
13
Private
MG TPS (CLP), Jhajjar
Baspa HEP (IPP)
Karcham Wangtoo (IPP)
Vishnuprayag (IPP)
Malana HEP (IPP)
Allain Duhangan (Pvt)
Rosa
Barkhera TPS (IPP)
Khambarkhera TPS (IPP)
Kundari TPS (IPP)
Maqsoodpur TPS (IPP)
Utraula TPS (IPP)
Anpara -C
Total Private
4
2
2
2
2
2
ROR (as informed
by UP SLDC)
0
0
Run-of-river
scheme
0
0
0
0
0
0
0
Annexure‐VI A
Progresss of Installation of HT Shunt Capacitors (rated 11 kV and above) in Northern Region As on State
HT shunt capacitors (rated 11 New capacitors required Capacitors added Capacitor added in Balance capacitors to be for FY 2014‐15
during
FY 2014‐15
added during 2014‐15
kV level and above) installed upto 31.03.2014
Aug‐14
A
B
C
D = C+D(Previous)
E = B‐D
Chandigarh
157.00
0.00
15.20
15.20
0.00
Delhi
3703.00
1286.00
22.00
42.00
1244.00
Aug‐14
Total capacitors installed in the State as on 31.08.2014
F = A+D
172.20
3745.00
Haryana
4890.00
2802.00
98.76
105.96
2676.04
4996.63
Himachal Pradesh
841.91
285.00
0.00
10.00
275.00
851.91
J & K*
252.38
628.00
0.00
0.00
628.00
252.38
Punjab *
9586.00
356.00
0.00
0.00
356.00
9586.00
Rajasthan UP Uttarakhand 5155.33
6402.00
313.20
422.00
2611.00
600.00
0.00
20.00
0.00
0.00
160.00
0.00
422.00
2451.00
600.00
5155.33
6562.00
313.20
Total
31300.82
8990.00
155.96
150.96
8652.04
31634.65
Annexure‐VI B
Aug‐14
Defective Capacitors revived Net defective capacitors at the end during Aug, 2014
of Aug 2014
Progresss of revival of defective HT Shunt Capacitors (rated 11 kV and above) in Northern Region
Constituent
Defective capacitors as on 31.07.2014
Defective during Aug 2014
Defective Capacitors as on 31.08.2014
Chandigarh Delhi Haryana Himachal Pradesh A
24.67
187.15
527.08
73.90
B
5.30
145.19
0.00
C= A+B
29.97
332.34
0.00
73.90
D
0.00
109.01
0.00
0.00
E = C‐D
29.97
223.33
527.08
73.90
J & K*
Punjab *
Rajasthan UP Uttarakhand 40.00
365.00
447.75
2447.00
40.00
0.00
0.00
0.00
187.37
65.00
0.00
40.00
365.00
635.12
2294.00
40.00
0.00
0.00
176.72
10.00
0.00
40.00
365.00
458.40
2284.00
40.00
Total
*‐Data not available
4152.55
402.86
3810.33
295.73
4041.68
Annexure-VII
Target dates for implementation of SPS in Northern Region.
Scheme
Interruption
of
import by NR at
765 kV Agra
(from WR)
Impleme
Ntation
Agency
Target dates
as decided in the
th
th
18 TCC-20
NRPC meetings.
(held on 28.02.2011
& 01.03.2011)
Revised target
Revised target dates
dates as intimated as intimated in the
in the 23rd NRPC
103rd OCC meeting.
meeting.(held on (held on 17 & 18.09.2014)
29.08.2011)
Scheme has been implemented for load shedding.
CTU
August, 2011
December,
2011
to
Feburary,
2012
Tripping
of
multiple
lines
from 400 kV
Dadri
(Along with Balia-Bhiwadi HVDC pole-II)
NTPC desired that this SPS scheme be coordinated with Islanding scheme being finalised.
December,2011to
February, 2012
August, 2011
CTU
220 kV SalalJammu
circuit
carrying
more
than 150 MW
each
SPS for Ropar
The scheme has been commissioned at Korba
STPS, UMPP-Mundra and Vindhyachal STPS.
rd
Mock testing of this SPS was carried out on 03
April, 2014 with the co-ordination of all concerned.
Deficiencies observed during Mock testing are
being attended to.
PDD, J&K
Ropar
TPS
(Work
transferred
from PSTCL to
Ropar TPS)
SPS for Panipat
No
time
frame
furnished by PDD,
J&K.
No
information
from
PDD, J&K
April, 2011
No information from PDD, J&K.
PDD, J&K to intimate in writing about the status of
implementation of this SPS. Also status of
underlying transmission met-work from Wampoh
and Sambha substations to be intimated.
December, 2011
to
by
HVPNL
No
commitment
from
HVPNL
(November, 2011
st
decided in 21
NRPC
meeting held on
02.06.2011)
Paricha–
by
December, 2011.
UPPTCL
As decided in a meeting held on 28.02.2013,
system studied to re-establish the requirement of
SPS for tripping of multiple lines from 400 kV
Dadri was carried out by NRLDC. It has emerged
from the study that implementation of SPS will not
affect the islanding scheme of Delhi. SPS is being
implemented by NTPC.
SPS installed and commissioned on 29.05.2013.
HVPNL
was
revert
back
16.03.2011
SPS for Paricha
& Rosa
NTPC agreed to submit the break-up details of the
backing down at Dadri Th. & CCGT.
UPPTCL was
revert
back
16.03.2011
to
by
SE/O&M-II Panipat TPS vide his letter no. Ch77/SMD-46 Vol.-II dated 01.03.2013 had informed
SE (SLDC), HVPNL that SPS for Panipat-I units
is not technically feasible as these units have not
been provided with ETHC (Electro Hydraulic
Turbine Control).This SPS issue already stands
referred to CEA.
On commissioning of 400 kV Parichha-Mainpuri
D/C lines this SPS is not required since
generation at Parichha TPS has not exceeded
850 MW so far & N-1 contingency is being
fulfilled. Decision to install SPS for Parichha TPS
has been kept in abeyance and situation is being
monitored by U.P. SLDC and NRLDC for 6
months. OCC agreed to recommend scrapping of
the SPS to TCC/NRPC Subsequently NRPC in
st
th
its the 31 meeting held on 24 July, 2014, has
approved dropping the above SPS..
Rosa- by Septembe SPS was envisaged for one unit with connectivity
2011
at 220 kV level but now the scheme has been
revisied for four units with connectivity at 400 kV
level and 2 new upcoming outlets. SPS is likely to
be commissioned by September, 2014
ICTs
Bawana
Bamnauli
at
&
ICTs
Muradabad,
Muradnagar
Agra
at
May, 2011
November, 2011
Implemented and Operational.
DTL
UPPTCL was
revert
back
16.03.2011
&
to
by
December, 2011
UPPTCL
Tenders were floated and were to be opened on
18.01.2013.No vendor submitted bids. Date was
extended. Retendering for procurement of SPS for
ICTs at Muradabad, Muradnagar was done.
Tenders were scheduled to be opened on
25.09.2013 but no vendor had submitted the bids.
Vendors were contacted by UPPTCL and as a
result, order for SPS For ICT’s at Agra has been
placed with delivery schedule of 120 days .For
Muradabad and Muradnagar, retendering has to
be done.
ICTs
at
Mandola,
Maharanibag,
Ballahbgarh,
Bhawadi, Bassi,
Maharanibag,
implemented.
August, 2011
December, 2011
Ballahbgarh
&
Mandola
SPS at Bhiwadi dropped as with the
commissioning of additional ICT, overloading of
ICTs is not being experienced.
To February, 2012
SPS at Bassi was dropped keeping in view the
expected addition of one more ICT of 500 MVA in
about one year’s time when problem of
Overloading will not be experienced. However,
keeping in view the changed configuration due to
commissioning of generating units at Kawai TPS
and consequent overloading of ICTs, OCC has
th
decided in its 97 meeting to revive installation of
SPS at Bassi. RRVPNL submitted the list of
feeders for disconnection through SPS.
CTU
With the expected addition of new ICT of 500 MVA
capacity by August, 2014, OCC in its 100th
meeting has decided to keep on hold the
installation of SPS at Bassi for the time being. In
103th OCC meeting, POWERGRID intimated that
ICT at Bassi is expected to be commissioned by
the end of September, 2014.
OCC decided in its 90th meeting to install the SPS
at Meerut. To be installed by November, 2013.
Loads identified by UPPTCL & POWERGRID has
to now implement the SPS. Since Optic Fibre
communication is not available at all the 07
outgoing, 220 kV feeders from Meerut, SPS has to
be implemented using PLCC communication.
However, POWERGRID has concluded
that SPS using PLCC communication will
not be reliable.
Annex‐VIII
Revised UFRs based automatic load shedding scheme at frequency statges 49.2 hz, 49.0 hz, 48.8 hz & 48.6 hz.
S.No.
State/UT
Peak Met during 2012‐'13 (MW)( Source: CEA)
MW
49.2 Hz.
49 Hz.
48.8 Hz.
48.6 Hz.
Target (MW)
Implement
ed (MW)
Target (MW)
Implement
ed (MW)
Target (MW)
Implement
ed (MW)
Target (MW)
State wise load relief on implementation of revised frequency setting of UFRs at stages of 49.2 hz, 49.0 hz 48 8 hz & 48 6 hz
Implement Implement Targeted ed (MW)
ed Load Load Relief Relief (MW)
(MW)
0
32
64
Remarks/Status
1
Chandigarh
340
16
16
16
16
16
0
16
UT Chandigarh implemented revised setting at 49.2 Hz. & 49.0 Hz. Other two states shall be implemented after received of UFRs
2
Delhi
5642
258
297
259
353
262
429
263
1049
2127
1042
3
Haryana
6725
308
401
309
612
312
450
314
231
1694
1243
4
Himachal Pradesh
1672
77
83.5
77
94.4
78
80
78
78
335.9
310
5
J&K
1817
83
0
84
0
84
0
85
0
0
336
Not yet implemented
6
Punjab
8751
400
435
402
575
406
807
408
415
2232
1616
Scheme implemented of all four stages 7
Rajasthan
8515
390
575
392
548
395
515.40
397
506.5
2145
1574
UP (Avg.MW Relief)
12048
551
1271
554
1431
559
1338
561
507
4547
2225
Uttarakhand#
1674
77
90
77
100
78
80
78
90
360
310
Total load Relief (MW) by all NR states at each stage of frequency setting at 49.2 hz, 49.0 hz, 48.8 hz & 48.6 hz.
47184
2160
3168
2170
3729
2190
3699
2200
2876
13472
8720
Scheme implemented of all four stages Scheme implemented of all four stages Scheme implemented of all four stages
Annexure‐IX
2014‐15
Capacity (in MW)
Units
HPSEB Ltd.
Unit‐II
33.3
Jan., 2015
HPSEB Ltd.
Unit‐III
33.3
Feb., 2015
Uhl‐III HEP
HPSEB Ltd.
Unit‐1
33.3
Mar‐15
Ramgarh ST‐III GT
RRVUNL
Unit‐1
110
20.03.13
06.02.2013
Ramgarh ST‐III GT
KALISINDH TPS
KALISINDH TPS
CHHABRA II TPS
CHHABRA II TPS
Talwandi Sabo
Talwandi Sabo
RRVUNL
RRVUNL
RRVUNL
RRVUNL
RRVUNL
Sterlite
Sterlite
Unit‐2
600
600
250
250
3
2
50
1
2
3
4
660
660
05.04.14
17.09.2013
07.06.14
19.12.2013
23.4.14
Sept. 2014
Oct.2014 Talwandi Sabo
Sterlite
1
660
GOINDWAL SAHIB
GVK POWER
2
Rajpura
Rampur
Rampur
Rampur
Rampur
Rampur
Rampur
Baglihar‐II
Baglihar‐II
Baglihar‐II
GVK POWER
SJVNL
SJVNL
SJVNL
SJVNL
SJVNL
SJVNL
JK PDC
JK PDC
JK PDC
2
68
68
68
68
68
68
150
150
150
Name of the plant
Agency
Uhl‐III HEP
Uhl‐III HEP
Expected Syn.
Actual Syn.
Oct‐14
Expected COD
Actual COD
Oct‐14
09.09.13
Sept.2014
19.12.13
Jun‐14
31.12.2013
17.06.2014
540
Nov., 2013
04.03.14
700
1
2
3
4
5
6
1
2
3
May, 2013
Apr-14
Annexure‐IX
2015‐16
Name of the plant
Kishenganga
Kishenganga
Kishenganga
KOLDAM
KOLDAM
KOLDAM
KOLDAM
ANPARA D
BARH‐I
Agency
NHPC
NHPC
NHPC
NTPC
NTPC
NTPC
NTPC
UPRVUNL
NTPC
Capacity (in MW)
110
110
110
200
200
200
200
2
1,2,3
Units
1
2
3
1
2
3
4
500
1980
Expected Syn.
Dec.‐14
Jun‐15
Actual Expected Actual Syn.
COD
COD
Apr‐15
Annexure-X
Summary of Replacement of Porcelain Insulators by Polymer / Antifog Insulators
Utility
Stage-I (Lines
identified after grid
incidence on 8th
March 2008)
Lines
Progress
Identifi of
ed
Replace
(Nos)
ment of
Insulator
String
(%)
Stage-II (Lines
identified after grid
incidence on 2nd
January 2010)
Lines
Progress
Identifi of
ed
Replacem
(Nos)
ent of
Insulator
String (%)
StageIII(Identified
critical lines on
their own)
Lines
Progres
Identifi s of
ed
Replac
(Nos)
ement
of
Insulat
or
String
(%)
Overal Status as
l
on
Progre
ss
HVPNL
27
89
23
58
Nil
-
74
28.02.2014
POWER
GRID
49
99.2
39
76
12
64
84
20.01.14
BBMB
30
77.76
5
94
Nil
80.45
31.07.2014
DTL
6
100
18
-
Nil
-
26
220 kV lines
identified.
Total
insulator
strings 7385
(status as
on
26.11.13.)
UPPTC
L
17
100
35
85
59
84
86
01.09.2014
PSTCL
20
100
35
100
22
100
100
26.11.2013
POWER
LINK
1
100
-
-
Nil
-
100
Work
Completed
RVPNL
2
100
-
-
Nil
-
100
North
Central
Railway
s
-
-
-
-
-
-
100
2
100
-
-
Nil
-
100
20.11.2013
-
-
-
-
2
88
88
11.01.2013
Norther
n
Railway
s
Adani
Power
Ltd.
Work
Completed
1126
Insulator
strings
replaced 100 %

Transcription

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