Beaver Valley Units 1& 2 Response:
Beaver Valley had issues with these "nuisance" rod stepping events and they were impacting the reactivity PI. As a result, we implemented disabling the auto rod withdrawal a few years ago for both units.
Anthony (A.R.) Burger Supervisor, Reactor Engineering FENOC - Beaver Valley Power Station Phone: (724) 682-4108 Cell: (724) 601-3224 FAX: (724) 682-4250 Email: aburger@firstenergycorp.com
Charlene.N.Chotal al@dom.com Sent by: To pwrrm@retaqs.com pwrrm@retaqs.com cc
09/16/2008 02:46 Subject PM [Pwrrm] Request for Information: Automatic Rod withdrawal
Please respond to PWR Reactivity Management <pwrrm@retaqs.com >
At Surry Power Station, we had an event where our control rods automatically stepped out 2 steps due to an incorrect Tave-Tref deviation indication. There has been talk of disabling automatic rod withdrawal here at the station and I wanted to know what other plants have done regarding this system. Has your plant disabled the Automatic rod withdrawal function? If not, why not? Are there plans to do so?
Charlene Chotalal Reactor Engineer Surry Power Station Work: (757)-365-2819 Email: Charlene.N.Chotalal@dom.com
"I have to go count neutrons at the plant. Conservation of mass. It's the law!"
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