BASIC SCOPE OF SUPPLY - Power Generation Enterprises

Transcription

BASIC SCOPE OF SUPPLY
The Trailer Mounted 25MW package consists of four trailers (Main, Auxiliary, Inlet and
Exhaust). The following equipment and services are included in the basic scope of supply:
Main Trailer
The Trailer Mounted 25MW main trailer contains the prime mover / turbine, an air-cooled
generator connected through an engine-generator coupling, the lube oil systems (generator,
turbine, hydraulic start), and fin-fan coolers. The turbine engine is equipped to operate on
natural gas, liquid fuel, or both (dual fuel).
Trailer and Jeep
A four axle, air-ride trailer and three axle jeep is the foundation of the main trailer. The complete
main trailer with the jeep attached weighs approximately 160,000 pounds. The overall
dimensions of the main trailer are: 80 long x 10 wide x 13 high. Once on site, the jeep and
trailer gooseneck are removed and the operational overall length is 43 . Six jacks are provided to
level and support the main trailer on site.
ENGINE/GENERATOR MOUNTING
Base Plates
The turbine engine is mounted to a welded support platform that in turn, is independently
mounted to the forward half of the main trailer. Dry coupled to the engine, the generator is fixed
to a sub-base that is integrated into the rear half of the trailer frame. This arrangement enables
engine/generator shaft alignment to be adjusted at the engine platform, while the generator
remains fixed. A weatherproof, sound-deadening enclosure houses the engine, which can be
removed for engine maintenance. The air-cooled generator is not enclosed, however its
ventilation air filter box is mounted on top of the generator.
TURBINE ENGINE
The gas turbine engine is the prime mover in the Trailer Mounted 25MW generator set. Either
engine is a two-shaft design with the gas generator separate from the power turbine. This
decoupled design allows the power turbine to operate at a continuous speed of 3,600 (60Hz) or
3,000 (50Hz) rpm, regardless of the gas generator speed. The torque developed in the
aerodynamically coupled power turbine is directly transferred to the rotor of the alternating
current (AC) generator through a flexible diaphragm coupling.
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AC GENERATOR
Design
The Trailer Mounted 25MW set features a generator, which is a two bearing machine equipped
with a brushless rotating exciter and a permanent magnet generator (PMG) on the non-drive end.
The generator is designed to accommodate the full continuous power of the turbine at all ambient
temperatures, throughout the operating range for 60 or 50 Hz operations. Neutral and line-side
cubicles, voltage regulator, inlet ducting with filters, and exhaust silencer are provided with the
main trailer.
Rating
The AC generator operates at a synchronous speed of 3,600 or 3,000 rpm, eliminating the need
for a speed-reducing gearbox during simple-cycle operation. It continuously supplies an output
voltage of 13.8 or 11.5 kV, at a frequency of 60 or 50 Hz and an 80% power factor (PF).
Includes a generator breaker with 40,000 amp interrupting capacity. The generator is designed
for outdoor use.
COUPLING
Design
The power turbine flange of the turbine engine is directly coupled to the generator rotor shaft
with a disk type, dry diaphragm coupling. The coupling consists of a hollow center shaft, which
connects to the turbine shaft hub and the generator rotor shaft hub by means of diaphragm packs
made from thin metal disks that have been stacked and riveted to a guard plate. The entire
assembly has been drilled around the outer diameter to accept the coupling hub bolts. The inner
diameter of the diaphragm pack has been clamped to the coupling center section by backing
rings.
Function
The diaphragm packs flex slightly to absorb vibration and some of the stresses associated with a
varying load. The coupling hubs and center section have been dynamically balanced at the
factory to eliminate vibration and then match marked to ensure proper assembly.
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ENCLOSURE
Design
The standard design is supplied with a weatherproof, acoustic enclosure that houses the gas
turbine. The acoustic enclosure can be easily removed for turbine removal and general
maintenance. Each enclosure is completely assembled and mounted over the turbine prior to
shipment. The turbine compartment is ventilated with two fans. Both fans are integrated within
the enclosure and pull air through the turbine air inlet duct.
TURBINE LUBE OIL SYSTEM
General
The turbine is lubricated by a 150-gallon internal pump and lubrication system. provides an
external lube oil system to filter, cool, and de-aerate the lube oil discharged from the internal
system. The external system is fed by a scavenge pump, which is driven by the turbine
accessory gearbox whenever the turbine gas generator is rotating.
Instruments and Controls
Lube oil pressures and temperatures at critical points are displayed on externally mounted
instruments that permit both local and remote observations. Gauges and pressure switches in the
system have been installed with a needle valve in the instrument sensing line to permit
replacement and calibration without disturbing the lube oil flow. The system piping has been
provided with manually operated ball valves to isolate components for repairs and maintenance.
GENERATOR LUBE OIL SYSTEM
General
The lube oil system provides pressurized lubrication to the generator bearings. The major
components of the lubrication system are as follows:
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Lube oil storage reservoir, 150 gallon capacity
Generator-driven lube oil pump
DC motor-driven auxiliary lube oil pump
Generator lube oil heat exchanger
Lube oil filter assembly
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Generator-Driven Lube Oil Pump
The generator rotor shaft directly drives this pump, mounted to the exciter end of the generator
housing, and supplies lube oil to the bearings at the normal operational shaft speed (3,600 rpm).
Because its efficiency decreases at lower shaft speeds, an auxiliary pump to ensure adequate
lubricating oil flow during startups and shutdowns must supplement the pump.
Auxiliary Lube Oil Pump
The auxiliary pump supplies oil to the generator bearings for the first 5 minutes of startup,
during shutdowns, and in case of generator-driven pump failure. This pump is driven by a 2-hp,
125VDC, motor, and is controlled by the turbine sequencer in the TCP. The sequencer monitors
the lube oil system pressure and generator shaft speed, and activates the auxiliary pump during
generator startups, shutdowns, and any other time that the lube oil pressure drops to 12 psig. An
alarm sounds should the auxiliary pump activate with the generator turning at normal operating
speed.
Instruments and Controls
Each gauge and pressure switch has been installed with a needle valve in the sensing line to
permit replacement and calibration without disrupting oil flow. Manually operated ball valves
have been provided to isolate components for repairs and maintenance.
HYDRAULIC START SYSTEM
General
The hydraulic start system turns the engine and is capable of starting it for fuel purging, water
washing, and conducting maintenance. The hydraulic start unit is located on the auxiliary trailer
and consists of a reservoir, filters, heat exchanger, charge pump and motor, cooler pump and
motor, and electrically operated valve providing pressurized hydraulic fluid to the variabledisplacement pump, and a hydraulic starter motor mounted on the starter drive pad of the turbine
auxiliary gearbox. This hydraulic starter motor turns the engine. Two operating speeds are
provided: a low speed for water washing and maintenance, and a high speed for turbine starting
and fuel purging. Engine speed can be controlled from the TCP. Local gauges allow for
monitoring of the hydraulic charge pump and main system pressures, and fluid levels. Hydraulic
fluid is stored in a 40-gallon stainless steel tank equipped with sight level gauge and
thermometer; low-temperature switch; fluid level switch; thermostatically controlled immersion
heaters; and a 200-mesh, hydraulic pump suction strainer with an integrated bypass valve.
Hydraulic Start Charge Pump
The charge pump replenishes lost fluids in the hydraulic pump case and in the main pump,
closed-loop hydraulic system.
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FUEL INJECTION SYSTEM
System Configuration and System Components
The standard Trailer Mounted package is supplied with a gaseous fuel system. Also offers
liquid and dual fuel systems as options. The natural gas fuel system utilizes an electronically
controlled fuel metering valve. Gaseous fuel must be supplied to the auxiliary trailer at 375
psig +/- 20psig. Gaseous fuel must meet General Electric specification MID-TD0000-1. The
gas fuel system contains all shutoff valves, instrumentation, flow meters, piping, and
interconnections from the Auxiliary trailer to Main trailer to turbine.
The Trailer Mounted may also be equipped with a liquid fuel system. Standard fuels include
DF1, DF2, or JP4. The customer is responsible to supply liquid fuel to the auxiliary trailer at
20-40 psig and at least 20 Deg F. Liquid fuel must meet the General Electric specification
MID-TD-0000-2. The liquid fuel system contains all shutoff valves, instrumentation, flow
meters, piping, and interconnections from the Auxiliary trailer to Main trailer to turbine.
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ANCILLARY EQUIPMENT TRAILERS
Supplied with the Trailer Mounted 25MW generator set are three support trailers that contain the
air filtration and exhaust equipment, fuel systems, lubricating systems, fire protection equipment,
water wash, water injection, and fogging systems. All interconnections between individual
trailers are included. These trailers are configured as follows:
Air Filter Trailer
Contains the combustion and ventilation air filtration
equipment. Includes high-efficiency bag filters, ventilation
fans, inlet fogging system, and intake silencers. Inlet
ducting has expansion capability to allow for additional
silencing.
Exhaust Silencer Trailer Contains the combustion exhaust silencer equipment,
including an expansion joint, transition, silencer elbow, and
stack with standard emission measurement ports. Exhaust
ducting has expansion capability for additional silencing
and have a flange designed for a deflector assembly
(deflector not included in scope).
Auxiliary Trailer
Contains the control house, switchgear, water wash system,
water injection pumps, inlet fogging pumps, natural gas
filter, and fire protection system.
Support System Equipment
The packaging of the Trailer Mounted 25MW set includes a turbine generator control panel
(TCP), digital generator protection relay system, 480-V motor control center (MCC), and 24-and
125-VDC battery systems, including battery racks and chargers. This equipment is contained in
the control house, located in the auxiliary trailer.
Turbine-Generator Control System
The turbine-generator control and monitoring systems regulate the lubrication, fuel supply,
ventilation and cooling, fire safety, and maintenance functions. Fuel supply is regulated by a
computerized fuel control and sequencer system. The control system monitors all operating
systems and initiates alarms and shutdowns when hazardous conditions occur. Manual
emergency shutdowns can be initiated with emergency stop buttons located on the exterior of the
main and auxiliary trailers, as well as at the TCP. The control system is expandable to accept
additional inputs, alarms, etc.
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WATER SYSTEMS
Demineralized Water Injection
To control the amount of oxides of nitrogen (NOx) emitted by the gas turbine engine during
normal operation, demineralized water is injected into the combustor section of the gas turbine
through the 30 fuel nozzles. Demineralized water from the customer source at customer
connection (79) on the auxiliary trailer is pressurized by a water injection pump and piped to the
main trailer. The demineralized water supply must be filtered to 10 micron, and supplied at 33
gpm, and at a minimum pressure of 20psig.
Demineralized water passes through a butterfly valve and 10 micron strainer to pressure
transmitter PT 12144. Pressure transmitter PT-12144 monitors water supply pressure and
initiates an alarm at 2.6 psig decreasing, while invoking turbine shutdown at 60 psig increasing,
or at 0 psig decreasing.
The water injection-metering pump controls the water flow to the turbine while raising the water
pressure to an operating pressure of 800 psig. Nominal flow is 33gpm at a temperature range of
40-140 F. The output of the piston pump is regulated at a maximum of 800 psig by relief valve
PSV-1242. Pressure transmitter PT-12005 monitors pressure at the main trailer, while
demineralized water temperature is monitored by sensor TE-12145. The temperature sensor
initiates an alarm at 140 F increasing, and invokes a shutdown of the water injection system at
150 F increasing.
Inlet Fogging System
Inlet fogging enhances the efficiency and output of the gas turbine engine by spraying a fine
mist of water droplets into the inlets of the high-pressure compressor. The spray water is
atomized by special nozzles to a droplet diameter of less than 20 microns. As the droplets
evaporate, the air temperature is reduced and the mass-flow is increased. This permits greater
power output. The inlet fogging system is designed to operate with the water injection system
for NOx control. Water purity requirements are identical to the requirements for NOx control;
water injection. A maximum flow rate of 15 gpm is required for full power boost when ambient
temperature is 104 F. The fogging system has a common inlet to the auxiliary trailer; however,
fogging water directed to the turbine is separated through a different pumping system from the
other water systems.
Turbine Water Wash System
Optimal performance is achieved by periodically cleaning compressor stages of the gas turbine.
The water wash system provides for washing the turbines when the turbine has been shut down
for maintenance (off-line water washing). Off-line water washing may not be initiated until
engine surface temperature is <200 F.
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Exhaust Collector Drain
Significant amounts of flammable liquids and water wash solution may accumulate in the turbine
exhaust collector. The exhaust collector drain system eliminates these accumulations to ensure
safe starts. A flexible drain line routes accumulations from the collector to the fuel drain line
through pneumatically operated drain valve.
COMBUSTION AND VENTILATION AIR SYSTEM
Configuration
The combustion and ventilation air system of the Trailer Mounted 25MW genset supplies filtered
combustion air for turbine engine operation and filtered ventilation air for the turbine enclosure.
The trailer-mounted air filter module supplies combustion air to the gas turbine and ventilation
air to the turbine enclosure. The air filter trailer is equipped with moisture eliminators, pre-filter
pads, bag filters, and ventilation fans. The ventilation fans force filtered air into the turbine
compartment for ventilation and cooling purposes. The gas turbine engine draws filtered air from
the air filter trailer for turbine combustion while ventilation fans in the air filter trailer force
ventilation air into the turbine enclosure. The airflow is provided as two discrete streams: one
stream provides 120,000 scfm airflow for the combustion in the turbine engine; the other
provides a 30,000-scfm airflow for turbine compartment ventilation.
Fire Control System
A CO2 actuated damper in the ventilation exhaust silencer assembly helps to extinguish fires and
prevent gas explosions. Should a fire occur, the damper automatically seals the turbine enclosure,
terminating the oxygen flow required for combustion. The fire suppression and gas detection
system for the Trailer Mounted 25MW genset monitors the turbine engine enclosure for the
presence of fire and accumulation of combustible gas. Carbon dioxide (CO2) is used as the fireextinguishing agent for the main trailer. The fire suppression and gas detection system consists of
a programmable microprocessor controlled panel that receives inputs from thermal spot
detectors, combustible gas detectors, and manual release stations.
VIBRATION MONITORING SYSTEM
System Configuration
A vibration monitoring system shall be installed in cubicle 2 of the TCP to notify the operator of
excessive vibration in the turbine engine and generator. The system comprises six vibrationmonitoring elements and an instrument rack with built-in power supply relays, and four
vibration-monitoring instruments.
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GENERATOR EXCITATION AND REGULATION SYSTEM
System Configuration
This system provides the power required to raise the generator output voltage to rated level
during startups and to maintain this output during fluctuating load conditions in the unit. The
generator excitation system contains the following components:
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Brushless Rotary Exciter mounted on the generator
Rotating Rectifier Assembly mounted on the generator rotor
Permanent Magnet Generator (PMG) mounted on the generator
Modular Automatic Voltage Regulator (MAVR)
Excitation Mode Switch
Motor Control Center (MCC)
The MCC distributes 480-VAC power to motors, heaters, and lighting circuits. The MCC is
designed to allow automatic or manual control of high power circuits using low-voltage control
circuits. During manual control, power is switched to the load immediately. When the circuit is
under automatic control, TCP-control circuits will switch power to, or remove power from, the
load when sensors detect the need.
BATTERY AND BATTERY CHARGER SYSTEMS
Introduction
Separate battery and battery charger systems furnish DC power for Trailer Mounted 25MW
genset operation. Two separate 24-VDC systems provide backup power for the turbine control
system and fires suppression and gas detection system, respectively. A 125-VDC system
provides backup power for the DC lube oil pumps. Batteries for the 24-VDC system are stored
on battery racks in the control house of the auxiliary trailer. The batteries are Ni-Cad and the
control house is adequately ventilated.
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ELECTRONIC CONTROL SYSTEM
General
The Trailer Mounted 25MW genset is operated through use of an electronic-control system.
This system comprises computerized-control subsystems installed in the TCP. The
microprocessors and digital logic circuitry in these subsystems provide the speed and
autonomy of operation required for sage, efficient operational control. Two major system
components are as follows:
1 Sequencer
The sequencer controls the order and timing of critical events in the operation of the Trailer
Mounted 25MW genset. It issues operating commands to the control subsystems in response to
data received from the sensors and detectors in the equipment and Trailer Mounted 25MW
subsystems.
2 Fuel Supply Manager
The fuel manager controls the operation of the turbine fuel systems. The purpose of the fuel
manager is to maintain a constant generator output frequency. The fuel manager achieves this
goal by regulating fuel flow to hold generator speed at a constant 3,000 rpm under all load
conditions, including no-load, full-load, and load-fluctuating operation. The fuel manager also:
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Manages the matching of generator output frequency to the frequency of utility power for
automatic synchronization and paralleling;
Controls the acceleration and deceleration of the gas turbine engine by varying the fuel
flow; and
Initiates, regulates, and terminates fuel flows into the gas turbine engine.
TESTING
General
The generator is tested at the factory. The gas turbine is performance tested at the test facility.
Upon completion of installation and start up, the unit shall be tested to demonstrate compliance
with the performance, emissions, and acoustic guarantees listed in this proposal. shall prepare
performance test procedures and submit them to the Customer for review and approval. The
performance test procedures shall include correction curves and test calculation details.
Performance testing shall be included in the startup and commissioning quotation and contract.
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MANUALS
Drawings, Data and Manuals
The package is supplied with a customer drawing package that includes general arrangement
drawings, flow and instrument diagrams, electrical one-line drawings and interconnection plan.
Additional electrical schematic diagrams and logic drawings are provided for record. Operations
& Maintenance manuals are provided, printed in the English language. The manuals cover
operating concepts for power generating equipment, guides to troubleshooting, basic information
on components, and equipment within the turbine generator set. Seven (7) hard copies and one
electronic (.pdf) copy shall be provided of the Operations & Maintenance Manual. Training
manuals and light-off procedures will be provided well in advance of genset delivery to ensure
adequate preparation for system checkout and light-off. All data collected during component
testing, system flushes, controls testing and final performance testing report will be provided to
PPGC. PPGC is welcome to witness any or all testing and development procedures during the
construction of the units. A full drawing set is included in each Operations & Maintenance
Manual and an electronic copy in Autocad format.
TRAINING and TFA
Training
Standard Training includes hands-on training for up to 10 customer s operators and supervisors.
Experienced instructors, using specially developed training materials, provide a firm groundwork
of the basic theory, plus advanced concepts with classroom and hands-on training. Training
includes Gas Turbine Familiarization plus System Design & Operations at the packaging facility.
Customer provides living and travel expenses for their employees. Training at other locations is
possible for a small fee. Customer provides classroom, projector, etc.
TFA and Commissioning
TFA, Startup and Commissioning to be arranged with independent, separate contract.
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WARRANTIES AND DEFECTS
The Turbine Warranty coverage is provided to customers in all market areas. will provide
for repair or replacement of covered components of the turbine for 8,000 hours or one year
(whichever occurs first) to the client in accordance with the following terms, conditions and
limitations.
Repairs Covered Under the 8,000 hour / 1 Year Warranty: will repair, replace or
adjust all covered components as specified on the technical specifications that fail due to
defective material or workmanship or wear and tear resulting from defective material and
workmanship during the applicable warranty period. Warranty period is applicable to the
original owner. Original owner must register their purchase with within 15 days of
purchase (or after installation). There will be no exceptions to this rule.
Component Protection: Covers all components of the turbine with exception of normal wear
items and regular maintenance. Components of the turbine are limited to specifically those parts
when combined and assembled result in a complete turbine engine.
How to File a Claim for Covered Repairs: recommends that you call manufacturing directly
or notify your dealer for instructions, which will expedite the repair of your turbine. will
provide local assistance. For specific instructions for return, you may call or email . Please see
operator s manual for contact information for your specific area. Repairs. All warranty repairs
of covered components MUST be made with service parts or manufactured parts authorized by
. In some cases, the use of remanufactured parts is at the discretion of .
Care of Turbine: Your turbine must be properly operated and maintained in accordance with the
operation manual received with each turbine. Recommended maintenance schedules must be
strictly adhered to. It is the equipment owner s responsibility to make sure that all scheduled
maintenance is performed and materials used meet specifications. Failure to have scheduled
maintenance performed as specified in the operator s manual by will invalidate warranty
coverage on parts affected by the lack of proper operation and maintenance. Turbine must be
operated according to the s operation manual. Damage caused by acts of God (ie: severe
weather, earthquake, etc.) will not fall under warranty protection.
Transferability. This warranty is transferable. If you sell your turbine, the 8,000 or one year
Warranty may be transferred to the new owner.
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EXCLUSIONS
Listed below are the limits/exclusions to the standard Scope of Supply. All piping, wiring,
cables, ducts, etc. connecting to these points will be furnished by customer (others) unless
modified by specification agreement.
All piping, including Fuel Gas, Fuel Oil, Steam, De-mineralized water
Inlet Air to filter
Turbine Package Ventilation / Cooling Air
Customer installed instrument wiring in Turbine Control Panel
High Voltage Connections
Generator Ground Connection / Neutral Grounding
Flanged or threaded connection on base plate at auxiliary trailer
Atmosphere non-standard duct by others
Terminal Box on Baseplate
Bus Bar in Line side Cubicle
Neutral Cubicle
Battery Terminals to Baseplates (if supplied loose)
Material and Labor Furnished by Others
Civil engineering design of any
kind Building & civil works Site
facilities
All inlet, exhaust, and ventilation ducting other than included in the
general scope of supply
Drains and/or vent piping from the gas turbine package to a remote point
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Fuel storage, treatment and forwarding system
Site grounding
Lighting protection
Power system study
Sensing and metering voltage transformers
Machine power transformers, and associated protection
Grid failure detection equipment
Service Agreement - Per Customer Requirement
Off-skid cabling, and design of off-skid cable routing
Customer witness testing
Balance pf plant and energy optimization controls
Anchor bolts, embedment, and grouting
Distributed plant control
Customers installed remote control
Field consultants - Per Customer Requirement
High voltage transformers(s), cables, and associated equipment
Interconnecting piping, conduit, and wiring between equipment
modules
Plant utilities, including compressed air supply and off-skid piping
Battery containment
Lube oil measurement other than that defined in the scope of
supply
Additional lube oil breather ducting other than that defined in
the scope of supply
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Fuel transfer pump
Fuel for gas turbine
Off-skid fuel block and vent valves
Fuel supply pipe work beyond the scope of supply
Generator controls other than that defined in the scope of supply
Load sharing control
Balance of plant control
Site labor (beyond the scope of supply)
Ladders, stairs, and platforms (beyond scope of supply)
Water supply and treatment by others
All Permits and permitting as required
No taxes or insurance
No legal fees included
Finance options
Startup and Commissioning
Generator Lube Oil
Turbine Lube Oil
Hydraulic Fluid
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OPTIONAL EQUIPMENT LIST: Options: 1-38
Continued on Pages: 17-20
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OPTIONAL EQUIPMENT
Option 1: Ocean & Inland Freight to Job Site
can provide shipment of the entire package directly to the site for an additional fee.
Option 2: Fogging System
Fogging boosts engine performance and efficiency using a spray inter-cooling design that
significantly increases mass flow by cooling the air during the compression process. The
system is based on an atomized water spray injected through spray nozzles placed at two
locations, one between the high pressure and low pressure compressors, and the second at the
inlet bell mouth. Water is atomized using high pressure air. The water flow rate is metered,
using the appropriate engine control schedules and, at the inlet bell mouth and inter-stage
portions, on fogging alternate operation based on turbine inlet temperature.
Option 3: Evaporative Cooling
For Applications when high dry bulb temperatures are common at low relative humidity,
evaporative cooling can be utilized to lower entering DB temperature, thus increasing power
output of the package.
Option 4: Inlet Air Anti-Ice
An Anti-Ice System is recommended to allow safe operation during icing/winter conditions. This
system includes valves and ducting to direct gas turbine enclosure ventilation exhaust air to the
gas turbine inlet air filter.
Option 5: High Performance Heating / Chilling
Combines the Anti-Ice System with inlet chilling for winter and summer operations. Lowering
combustion air inlet temperature can increase the kWe output of the generator set.
Option 6: Pulse Filters
Filters pulsed with compressed air for sites with high particulate in the outside air (dust, etc.).
Option 7: HRSG & Steam Production w/SCR
Heat Recovery Steam Generator with Selective Catalytic Reduction to boost power and reduce
NOx emissions to less than 25ppmvd.
Option 8: Exhaust Silencer & Stack Assembly
Modified exhaust and larger stack assembly built to customer requirements.
Option 9a: SCR System with Ammonia Grid
Selective Catalytic Reduction for reduced NOX emissions.
Option 9b: CO Grid
CO system for reduced CO Emissions
Option 10: Black Start System
Includes a 600 kWe diesel generator set and battery cranking system for black starts. The diesel
generator provides 480 VAC power for ventilation fans, accessories and starter motor. A larger
diesel generator set may be required if a natural gas fuel compressor or other special auxiliaries
must be operated during the starting sequence. The black start diesel generator set is furnished
in accordance with Diesel Generator Set Specifications.
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Option 11: Water Washing
Special option with inlet fogging.
Option 12: Off-base Fin-Fan Coolers
This replaces the standard plate and frame coolers for the lube oil system. A simplex core fin-fan
coolers, complete with changeover valve mounted on a separate base plate is supplied. Cooler is
dual fan and installed on a separate foundation.
Option 13: Shell & Tube Oil Coolers
This replaces the standard plate and frame coolers for the lube oil system.
Option 14: Natural Gas Fuel
System Standard fuel system.
Option 15: Liquid Fuel System
The gaseous fuel system is replaced by a liquid fuel system. Typical liquid fuels include DFI,
DF2, JP4, Naptha, or Kerosene. Customer must supply liquid fuel to the connection at the fuel
boost module at 20-50 psig (138-345 kPag) and at least 200F (110C) above the wax point
temperature. Customer supplied fuel must be clean, filtered and meet the fuel specifications.
Customer must supply interconnection piping from boost module to main base plate.
Option 16: Dual Fuel System
When specified, the package is field retrofitted with two independent fuel systems. This could
include two gaseous fuels, two liquid fuels or one gaseous and one liquid fuel. Changeover may
be initiated manually at the unit control panel, or automatically, if the operating fuel supply
pressure should gradually decrease. Please contact Holdings LLC for details.
Option 17: Steam Injection System
A steam injection system is required in conjunction with the HRSG option to boost power and
decrease NOx emissions.
Option 18: Water Injection System
For applications with NOx emissions limitations, water injection may be required. A water
injection system consists of inlet strainer, valves, piping and controls. Customer must provide a
supply up to 55 gpm of purified water on gas fuel and up to 78 gpm of purified water on liquid
fuel per water specifications to the water injection skid at 5 to 50 psig (34.5 345 kPag). The
minimum customer supplied pressure and temperature is determined by the water injection rate
required and the type of fuel nozzle utilized.
Option 19: Smart Extra Computer & Printer
can furnish a remote workstation as part of the control system. The module consists of high
performance desktop PC system equipped with a serial port for communication with the control
system, animated graphical displays of the turbine, generator, and auxiliary system analog and
digital parameters, historical logging and trending system that can store/display up to 30 days of
historical data, periodic reports, and capability to start, stop, and control the gas turbine generator
system.
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Option 20: Modular Control Room
can furnish an insulated and air conditioned modular control room (25 , 35 , or 50 as requested)
to house the control panel and all of the electrical equipment normally required for the gas
turbine.
Option 21: Switchgear
can supply the generator circuit breaker and related switchgear as a part of our equipment
scope. Equipment will conform to Switchgear Specifications. can provide optional quotations
once specifications are provided.
Option 22: Generator Protective Relays
The package is supplied with a microprocessor based generator protective relay module,
mounted in the turbine control panel. Protective relay system includes all functions necessary for
protection of the generator.
Option 23: Unit Motor Control Center
A freestanding lineup of motor controls for all motors furnished by can be supplied. The MCC
is suitable for indoor installation to optional modular control room or other non-hazardous are in
accordance with Specifications.
Option 24: Gas Turbine Operating Spares
Option 25: Generator Operating Spares
Option 26: Fire Protection Spares package
Option 27: Coupling
Coupling Spares
Option 28: Black Start Spares Package
Option 29: Starting System Spares Package
Option 30: Air Filter Spares Package
Option 31: Lube Oil & Fuel Filters Spares
Option 32: DC Enclosure Lighting
will furnish DC emergency lighting in the turbine and generator enclosures as an option. DC
lights turn on if AC power fails.
Option 33: Ni-Cad Batteries
will furnish nickel-cadmium batteries as an option to replace the lead-calcium batteries.
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Option 34: Water Treatment System
can provide a complete water treatment system designed to meet the quantity and quality
requirements essential for optimum performance of the Gas Turbine Generator Package. Due to
the variance in feed water quality, the base equipment package includes coarse and fine cartridge
filters, reverse osmosis, de-ionization, and ancillary equipment. Pretreatment options are
available for high turbidity, harness, and iron. Remote monitoring is offered as an option to
provide minimal operator interface.
Option 35: 60 to 50Hz Package
For operations that require 50Hz, can provide a reduction gearbox.
Option 36: Marinized Package and Turbine
For operations with high salt/air content, can provide a Marinized package and turbine. These
special coatings protect the package and turbine from corrosion due to high salinity of the
outside air.
Option 37: Mechanical Drive System
can supply a package designed for any mechanical drive requirement (air compressor,
marine drive, etc.).
Option 38: Exhaust Water Recovery System
will furnish an Exhaust Water Recovery System for a Steam Injection Package that is
scheduled for locations that have water supply problems.
20 | P a g e
[email protected]
|

BASIC SCOPE OF SUPPLY - Power Generation Enterprises

Transcription

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