Third Time a Charm at VA Nuke?

Monday, June 3, 2013 @ 06:06 PM gHale

Dominion Virginia Power is working on its third attempt to restart one of the two nuclear reactors at its North Anna facility in Mineral, VA, after a refueling outage.

Figures provided by the U.S. Nuclear Regulatory Commission (NRC) show the Unit 2 reactor restarted Thursday and was operating at 30 percent of capacity.

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The second attempt to restart Unit 2 began May 21, and the 973-megawatt reactor reached 98 percent of capacity Tuesday before it workers manually shut it down because a valve closure led to decreasing steam generator levels.

Officials originally idled Unit 2 April 7 for a scheduled refueling and maintenance outage, and the first attempt to restart it was aborted May 10 when, with the reactor operating at 60 percent of capacity, operators detected excessive vibrations in the exciter, which is used during start-up to initiate the flow of electricity from the generator to the grid.

Unit 1 at North Anna, in Louisa County some 45 miles northwest of Richmond, has remained at full power.

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