CT Nuke Back Up

Friday, August 16, 2013 @ 06:08 PM gHale

The unit shut down by an instrument failure at Connecticut’s nuclear power plant is back up and running.

Waterford, CT, Millstone Power Station and regulators said Unit 3 shut off automatically last Friday when an instrument failure caused a drop in the level of water used to cool the reactor core.

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The 1,200-megawatt unit reconnected to the regional power grid Wednesday afternoon, said spokesman Ken Holt. He said it was at about 80 percent power on Thursday morning and expected to reach full power within about a day.

The problem ended up being a faulty power distribution panel, which workers have since reconfigured, Holt said.

Millstone provides half of Connecticut’s power. The automatic shutdown was the first at Millstone since last summer, when its other operating unit went offline due to unusually warm water in Long Island Sound.

The Nuclear Regulatory Commission said this week that inspectors would follow up on the company’s efforts to diagnose the cause of the malfunction, and the agency will note the unplanned shutdown in its tracking of forced outages.

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