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INSTALLATION DESCRIPTION BRIEF
INDUSTRY:
IPP (Independent Power Producer)
APPLICATION: 1000MW Combined Cycle Cogeneration Plant
COMMERCIAL OPERATION: November 1994
SITHE ENERGIES USA, INC.
POWER PARTNERS, LP
INDEPENDENCE STATION
Oswego, New York, USA
EPC CONTRACTOR: GENERAL ELECTRIC/EBASCO CONSTRUCTORS,
INC.
DESCRIPTION:
1000 MW Natural Gas Fired, Combined Cycle Cogeneration Plant consisting
of two power blocks. Each power block consists of two gas turbine generators
exhausting into two, three pressure Heat Recovery Steam Generator (HRSG)
supplying steam to a single condensing steam turbine generator.
Plant consists of the following systems that are controlled via the
Distributed Control System.
- (4) Gas Turbine/Generators (GE – Frame
7FA) – Limited Control
- (2) Steam Turbine/Generators (General
Electric) – Limited Control
- (4) Heat Recovery Steam Generators
(Vogt)
- (4) Emissions Control via SCR Ammonia
Injection (Mitsubishi)
- (4) Duct Burners
- Demineralizer System (Glegg)
- Export Steam and Hot Water Systems
- Auxiliary Boiler System (ABB)
- Electrical System with integral SOE
All Balance of Plant Systems – Condensate, Feedwater, Fuel, Mechanical
Auxiliaries, etc.
CONTROL EQUIPMENT:
Leeds+Northrup MAX 1000 DCS with the following components:
- (3) Data Highways
- (5) WorkStations including:
- (5) Real-Time Processors
- (7) Graphics Processors (OPS)
- (2) Application Processors (EWS)
- (7) Non-redundant Distributed Processing
Units (DPU) for data-links
- (26) Redundant Distributed Processing
Units (DPU) Pairs
- (11) Remote cabinets to handle specific
areas of the plant.
- 6795 Total I/O Supplied: 690 AI 344 AO
1095 TC 154 RTD 3264 DI 1248 DO
SPECIAL FEATURES:
- Multiple Communication Links:
- (2) GE Speedtronics Mark 5
- Modbus Communications Link to (3) Turbines
- (2) Switchgear Data-Links (1)
Water Treatment System (AB)
- (1) Vibration Monitoring System (1)
Water Sampling System
- (1) Auxiliary Boiler Control and
Burner System (1) Fire Protection System
- Plant Auto-Start Sequence
- Plant Load Control
- Failure effects and mode analysis (FEMA)
study
- Multiplexed Color Copier
- Hot Spares Cabinet
- Sliding link disconnect terminal blocks
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