Buchanan, N.Y. – Control room
operators disconnected Indian Point’s unit 3 nuclear power plant from the
electrical grid last night in order to troubleshoot an issue with an auxiliary
electrical transformer. The transformer takes electricity created from the
plant’s main electrical generator and changes its voltage so that it can be used
to power some of the plant’s pumps and motors on site.
Operators had observed an increase in
gases within the transformer oil during routine sampling on Tuesday. An increase
in gases is an indicator of potential transformer degradation. Repairs to the
transformer can only be done when the transformer is disconnected from the
The plant will return to service
after the auxiliary transformer is disconnected and alternate power to the
affected equipment is provided.
There was no release of radioactivity
and no threat to the safety of workers or the public. The Nuclear Regulatory
Commission was notified.
Unit 3 had operated for 327
continuous days since returning to service following a refueling shutdown in
Unit 2 continues operating at full
power and has been online for 43 continuous days since returning to service
following replacement of a seal inside a pump.
Indian Point Energy Center, in
Buchanan, N.Y., is home to two operating nuclear power plants, unit 2 and unit
3, which generate approximately 2,000 megawatts of electricity for homes,
businesses and public facilities primarily in New York City and Westchester