Appendix E-2.c.i Energy Plan 2004-2013 Follow-up Studies and ...

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• Combustion turbine foundation • Step up transformers 13.8 to 345 kV (one for each CT) • Auxiliary transformers (one for each CT) • Generator breakers (one for each CT) • High side gas insulated breakers • Generator hydrogen and CO system 2 • Associated electrical connections, metering and protection • Oily water collection system • Wash water drain tank and pumps • Lube oil collection system B1 Steam Turbine Vendor Package Re-powering Study for the Northport and Port Jefferson Power Stations Appendix VII Northport Capital Cost Estimate Descriptions A nominal 300 MW down exhaust reheat steam turbine with throttle steam conditions of 1900 psig, 1050ºF and a single low pressure admission point. The turbine has a hydrogen cooled electric generator. The steam turbine includes: • Hydraulically operated main steam valves consisting of partial arc admission valves with a common emergency stop valve. • Hydraulically operated governing control and stop valves for reheat and LP admission steam • Strainers for valves, steam traps and drain valves • Exhaust casing relief diaphragm(s) • Vacuum breaker • Exhaust hood spray system • Turning gear • Noise enclosure • Complete, fault-tolerant, electrohydraulic control (EHC) system with o Vibration probes, axial position probes and monitoring system. o Dual redundant differential expansion measurement o Bentley Nevada TDXNET Module • Lube oil conditioning system • Static excitation system B1 Steam Turbine Balance of Plant The following equipment is part of the steam turbine balance of plant: • Steam turbine foundation and pedestal • Lube oil system March 30, 2009 252
Re-powering Study for the Northport and Port Jefferson Power Stations Appendix VII Northport Capital Cost Estimate Descriptions • Gland Seal and Exhaust system • Bypass steam system • Condenser air removal system • Condensate system including tank and two 100% capacity condensate pumps • Hydrogen system • CO system 2 • Nitrogen system • Closed cycle cooling water system including a 20 cell fin-fan cooler sized for all new equipment cooling requirements including steam turbine generator • Main step up transformer 13.8 to 345kV • High side gas insulated breaker • Generator synchronizing • Generator and transformer protection • Fire protection for steam turbine area C4 HRSG Vendor Package A heat recovery steam generator (HRSG) with integral deaerator, CO catalyst and selective catalytic reduction (SCR) is provided to accept the exhaust gases from each combustion turbine. The steam cycle design is a triple pressure, reheat cycle with throttle steam conditions of 1900 psig, 1050ºF. C4 HRSG Balance of Plant The following items are included in the HRSG balance of plant: • HRSG foundations • Main steam piping • Hot reheat steam piping • Cold reheat steam piping • LP steam piping • Boiler feed water system with two 100-percent flow boiler feed water pumps per HRSG • Stack, common concrete shell 275 feet high with three 18 foot diameter flues • Boiler blowdown system • Boiler chemical feed system • Steam/water sampling system • Aqueous ammonia storage, 25,000 gallon (approximately 5 days) • Aqueous ammonia vaporization skid, one per HRSG March 30, 2009 253
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Electric Resource Plan 2010 - 2020
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March 30, 2009 Re-powering Study fo
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Northport Repower Study Option 4 2x
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Re-powering Study for the Northport
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• Auxiliary Boiler System • All
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1 2 3 4 5 6 7 8 9 10 A SUPERHEATER
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1 2 3 4 5 6 7 8 9 10 A 0304 PID-03-
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1 2 3 4 5 6 7 8 9 10 A 0341 PID-03-
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1 2 3 4 5 6 7 8 9 10 A 0368 PID-03-
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1 2 3 4 5 6 7 8 9 10 A 0831 PID-08-
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1 2 3 4 5 6 7 8 9 10 A 0427 PID-04-
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1 2 3 4 5 6 7 8 9 10 A FGS FGS FGS
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1 2 3 4 5 6 7 8 9 10 A 0823 PID-08-
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1 2 3 4 5 6 7 8 9 10 0904 PID-09-09
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1 2 3 4 5 6 7 8 9 10 A FROM AIR COM
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1 2 3 4 5 6 7 8 9 10 A REVISION DES
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1 2 3 4 5 6 7 8 9 10 A 1330 PID-13-
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1 2 3 4 5 6 7 8 9 10 A FROM HRSG 1A
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1 2 3 4 5 6 7 8 9 10 A 0304 PID-03-
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1 2 3 4 5 6 7 8 9 10 A 0341 PID-03-
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Page 116 and 117: D3 Fuel Oil facilities Re-powering
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Appendix E-2.c.i Energy Plan 2004-2013 Follow-up Studies and ...

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