Waterford-3 keeps system off unless we have a Reactor Power Cutback (turbine or feed pump trip resulting in dropping 4 or 8 rods depending on what is selected, for immediate power reduction).

Clint Alday

-----Original Message-----
From: pwrrm@retaqs.com [mailto:pwrrm@retaqs.com] On Behalf Of Charlene.N.Chotalal@dom.com
Sent: Tuesday, September 16, 2008 1:46 PM
To: pwrrm@retaqs.com
Subject: [Pwrrm] Request for Information: Automatic Rod withdrawal

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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