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Exelon: Failed insulator caused outage at Byron nuclear plant via Chicago Tribune

Exelon Energy officials say they’ve traced a power failure at a nuclear reactor in northern Illinois to an electrical insulator in a switchyard.

The insulator failed and fell off Monday morning, causing one of the reactors at the Byron Generating Station to shut down automatically, company spokesman Paul Dempsey says.

The bad insulator will be sent to a lab for analysis and officials hope to replace it by Tuesday evening. It’s unclear how soon before the reactor could return to service.

Steam containing low levels of tritium, a radioactive form of hydrogen, is being vented to reduce pressure within the reactor. But federal and plant officials say the levels are safe for workers and the public.  The plant is 95 miles northwest of Chicago.

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  1. Byron Nuclear Plant Outage Caused By Failed Insulator | SimplyInfo linked to this post on 2012/01/31

    […] and fell off in the electrical equipment at Byron Nuclear Plant. Chicago Tribune reported that an insulator in the switchyard failed then fell off causing the unit to lose all offsite power. The insulator may be replaced by some time Tuesday. No estimate on returning offsite power or a […]

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