TOPGAS hydrogen-cooled generators benefit from a strong heritage of technology and extensive operational feedback. The TOPGAS power output range is a cost-effective alternative to bigger and more complex hydrogen-water-cooled generators.

Lower investment cost

Derived from the high power rating and the generator’s efficiency. TOPGAS machines are a cost-effective alternative to more complex hydrogen water-cooled generators that normally are used for similar power output levels.

Excellent 99.7% reliability

Based on measurements collected from 34 TOPGAS units between 1998 and 2012.

Close to 99% efficiency

Mainly thanks to the enhanced winding and hydrogen cooling system.



Product Specifications

Frequency 50 Hz 60 Hz
Power Factor 0.8 0.85

Apparent Power

400 MVA to 830 MVA 450 MVA to 615 MVA

Efficiency

Up to 98.9% Up to 99%
Terminal Voltage 18 kV to 23 kV 19 kV to 23 kV
Reliability1 99.715%

1 Average reliability calculated according to Standard IEEE-762 from measurements collected from 34 TOPGAS units between 1998 and 2012 by the independent company Strategic Power System. - See more at: https://prev-www.gepower.com/steam/products/turbogenerators/topgas.html#sthash.4rbhtwWx.dpuf