Generator Fault Shuts PA Nuke

Friday, May 31, 2013 @ 05:05 PM gHale


An unplanned outage at First Energy’s Beaver Valley nuclear power station unit 2 reactor occurred because of a generator malfunction.

The Beaver Valley power station is near Shippingport in Pennsylvania. The Nuclear Regulatory Commission (NRC) confirmed due to vibrations in the main generator, operations at the unit had to temporarily shut down.

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NRC public affairs officer Neil Sheehan said the vibrations in the main generator resulted from parts in the main generator stator that have either broken or became loose.

“Remember that these machines rotate at 1,800 rpm and will have some wear from actual mechanical vibrations, as well as from repeated heating and cooling cycles,” Sheehan said. “The generators are large electrical components that are cooled by hydrogen.”

The unit is currently offline and is not producing electricity.

The company could not confirm how long the outage will keep the unit offline.



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