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North Anna Reactor Shutdown due to Circuit Card Failure - NBC29 WVIR Charlottesville, VA News, Sports and Weather

North Anna Reactor Shutdown due to Circuit Card Failure

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LOUISA, Va. (AP) - Dominion Virginia Power is replacing a faulty electronic circuit card that caused a reactor to shut down at its North Anna power station.

Unit 2 at the Louisa County plant tripped automatically shortly before 2 a.m. Wednesday.

Dominion Virginia Power spokesman Rick Zuercher tells The Richmond Times-Dispatch that the circuit card failed, causing four valves to close. The valves control the flow of steam in the turbine system.

The unit sensed a problem and shut down automatically.

Zuercher says the reactor is expected to be back on line soon.

The shutdown came less than a week after the reactor was restarted following replacement of coolant pump seals. 

Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Information from: Richmond Times-Dispatch, http://www.timesdispatch.com

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