siemens - Public Service Commission

Alstom Proposal # SD22007, CR3 EPU Turbine Generator Retrofit MeetinP Notes, 05/15/07: Pg. 2 of 7
General Notes:
0 HP Turbine and Generator must be opened in 2007 for field measurements. Is open and close cost included?
- Re: Requested Alstom to consider this R&D-cost to them.
0 Evaluate performance of larger 16.8M2 (57”LSB) LP Turbine.
.Re: - Alstom presented performance curve for 47” and 57” LSB. 57” performs be
Average benefit of 57” LSB is approximately 3MW/year. Cost is
Canyon and performance was much better than expected.
CONFIDENTIP.!.
In. Hg. Both perform the same above 2.7 In. Hg.
Note: the 57”LSB was installed at Diablo
0 Heat balance indicates low feed water temperature between 2009 and 2011 (pg. 201,207,208). What is plant impact?
- Re: Ted say’s reactor is not affected. Lower feedwater temperature is in Alstom heat balance and would not be corrected for in a plant performance
test. Areva would have to evaluate / model the Alstom heat balance for EPU.
0 PE must verify generator frame 75 psi H2 pressure rating for generator stator rewind.
- Re: This is responsibility of PE. Will need Siemens support to document.
0 Support systems for water cooled stator skid and static excitation system are additional cost.
- Re: Alstom requested to provide requirements. See engineering issues.
Evaluate control room impact for new systems.
- Re: Alstom requested to provide requirements. Pump controls and annunciator inputs.
Scope of Supply Comments:
HP Turbine: 7 stage, full impulse design
0 New nozzle plates are fitted into existing nozzle box. Existing nozzle plates may need destructive removal. Is machining or repairs to the
existing nozzle box included?
- Re: Contingency repairs will be extra scope.
0 New inner and outer glands are provided. New gland seals machined for rotor clearance. Are both inner and outer glands type 405 ss (pg.
19)?
- Re: Alstom stated the HP turbine outer glands are poJ included. Proposal was in error. Inner glands are stainless steel.