Salem 1 Reactor Running Again

Wednesday, May 14, 2014 @ 09:05 AM gHale

The Salem 1 nuclear reactor returned to service early Sunday after repairs to the system that protects the plant’s main generator from electrical surges, an official said.

The Lower Alloways Creek, NJ, plant began sending electricity out over the regional power grid at 2:23 a.m. Sunday morning, said Joe Delmar, spokesman for the plant’s operator, PSEG Nuclear.

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Salem 1 automatically shut down at 4:56 a.m. Wednesday after one of the protection systems for the plant’s generator detected an unexpected change in voltage.

Delmar said Sunday officials found an electrical short on the current transformers connected with the main generator caused the problem. He said they replaced all wiring on the current transformers.

The problem was on the non-nuclear side of the plant.

On April 13, Salem 1 experienced an automatic shutdown due to the main generator protection system activating. The unit subsequently returned to service April 18.

Salem 1 is one of three nuclear reactors operated by PSEG Nuclear at its Artificial Island generating complex.

Salem Unit 2 remains in a scheduled refueling outage that began April 12 while the neighboring Hope Creek reactor remains operating at full power.

The three reactors comprise the second-largest commercial nuclear complex in the United States.

PSEG Nuclear is a subsidiary of Newark-based Public Service Enterprise Group.

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