LIMERICK PA – In a brief statement that offered little by way of explanation, Exelon Nuclear representative Dana Melia reported early Wednesday evening (July 25, 2012) that the company’s Unit 1 reactor at its Limerick Generating Station was back online.
Resumption of Unit 1 operations began Wednesday “at approximately 5 p.m” Melia said, “following replacement and testing of an electrical transformer.”
The statement took all of 57 words. It did not offer details on the suspected or confirmed cause of the transformer’s failure in what Exelon described as an “unusual event,” when the generator was scrammed – manually shut down – a week earlier (July 18) after the generator’s cooling equipment lost power.
At the time, Exelon reported it had notified federal, state and local government officials of the event. An “unusual event” is the lowest of four Nuclear Regulatory Commission emergency classifications.