A full speed compact turbine for medium and advanced reactors with a track record in performance and reliability.

  • Output range
    350 to 800 MW
  • Operating hours
    > 700,000

A powerful turbine with cutting-edge blading technology

The STF - N700 turbine offers a robust architecture in which the steam expands in a single or double-flow HP path, an optional intermediate turbine and one or more double flow LP turbines, all rigidly coupled to each other and the generator. The turbine can feature two or three LP modules for enhanced vacuum fit.

HP model is designed to increase efficiency

The HP model is derived from the most powerful 3,000 rpm saturated steam turbines in operation in the U.K. and China and features impulse-type blading and six stages to increase both global efficiency and final power output. 

HP steam exhausts are connected to the moisture separator reheater (MSR) by four cross-under pipes. This design allows servicing of the turbine without needing to disassemble the exhaust pipes.

STF - N700 overview
STF-N700
Typical Reactor Output (50 Hz) 1,500-2,200 MWth
Shaft Line Rotational Speed (50 Hz) 3,000
HP/HIP Turbine Type (50 Hz) 50NH2F07
Number of LP Turbines (50 Hz) 3"
Reactor Type (50 Hz) PHWR
Configuration (50 Hz) Double flow HP
LP Turbine Type (50 Hz) LP41
Speed 3,000 rpm
Output 700 MW
Heaviest Lift – LP Rotor 85 tons
Power Train Width 17 m
Hook Height 15 m
Power Train Length including Generator (m) 53

Our generator portfolio

Our generators offer reliability and a high technical operating performance. They have demonstrated successful operation on hundreds of systems worldwide and can be adapted to different power output levels and cooling mediums. 

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