At Summer we leave our rods in auto.  While we recognize that some plants disable auto or only allow auto-insertion, so as to only allow auto-stepping in a conservative direction, it still remains that the auto function is there to keep the plant at nominal, analyzed conditions, and our preference is to let it do just that.

Mike Strickland

Reactor Engineering

V.C. Summer Nuclear Station

Work (803) 345-4625

Cell (803) 622-6881

Pager (803) 251-5767

From: pwrrm@retaqs.com [mailto:pwrrm@retaqs.com] On Behalf Of Charlene.N.Chotalal@dom.com
Sent: Tuesday, September 16, 2008 2:46 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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