Key Assets

Siemens SST-400 Steam Turbine

49.10 MWe output steam turbine generator, Plate Rated

Throttle Pressure, psia – a865

Throttle temperature, deg. F – 800

Throttle Flow, lb/hr – 484,000

Final feedwater temp, deg F – 430

Exhaust pressure at condenser flange, in. HgA – 1.2 to 6.0

Cycle make-up flow, pph – 0%

Generator/Exciter/AVR – 0.9 lagging to 0.95 leading

Maximum power at generator terminals 49,100 kW

Operating speed – turbine 5,143 rpm

Operating speed – generator 1,800 rpm

Trip speed – turbine 5,567 rpm

Generator Voltage – 13.8kV

Generator Voltage range – +/- 5%

Generator apparent output – 55,000 kVA

Generator active output – 49,500 kW

Type – Condensating

Minimum operating conditions-nominal:

  • Pressure – 290 psia
  • Temp – 590 F
  • Flow – 72,000 [email protected] 1.2 inHga
  • Power – 4.65 MWe

Maximum pressure drop – 10 psi

Maximum supply temperature – 110 F

Minimum supply temperature – 60 F