The CNP philosophy is operate with Rod Control in Automatic.  We believe automatic operation provides the fastest response to an unanticipated transient.  There are no plans to disable the automatic rod withdrawal feature.

David Goff
Reactor Engineer
Donald C. Cook Nuclear Plant
269-465-5901 x1465


----- Forwarded by David D Goff/BC2/AEPIN on 09/24/2008 07:27 AM -----

-----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!"