Neckarwestheim Nuclear Power Plant - GKN 1

GKN 1

The nominal electrical power of block I, in service since 1976, is 840 megawatts. The 50 Hz three phase AC power is 567 megawatts and for the 16.7 Hz traction current power 174 MW. The traction current generator is the world's largest electrical generator for single phase AC. The generator block 1 is rated 21,000 volts at a current of 27,000 amperes, and the traction current generator is rated 14,500 volts and a current of 12,000 amperes. The current produced by the generators is stepped up to 220 kilovolts (three-phase alternating current) or 110 kilovolts (single-phase traction current) with the unit transformers. Block I was the only nuclear power station which produces traction current. Block I was shut down on March 17, 2011 for a three month moratorium on nuclear power, an announcement on May 30, 2011 named block I as a unit that would not be returning to service.