Diablo Canyon powers up Unit 2 reactor after shutdown

dsneed@thetribunenews.comOctober 16, 2012 

Diablo Canyon nuclear power plant

JOE JOHNSTON — jjohnston@thetribunenews.com Buy Photo

Operators at Diablo Canyon nuclear power plant began ramping up power in the Unit 2 reactor early Tuesday morning.

The reactor shut down Thursday when a transformer shorted out. Dust had built up on an insulator and rain caused the wet dust to ground out the transformer, said Tom Cuddy, PG&E spokesman.

“The rain was definitely a contributing factor,” he said.

Plant personnel are looking into ways to prevent a similar mishap in the future, Cuddy said. There is no estimate on when the unit will reach full power.

The plant’s other reactor remained in operation.

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