Contact Us

Oyster Creek Launches “Cold Shutdown” Following Off Site Outage

oystercreek
ExelonCorp.com

Oyster Creek went dark early this morning due to a loss of off site power, causing the plant’s reactor to be shut down as a precaution.

Nuclear Regulatory Commission Region 1 spokesperson Neil Sheehan says at 3:41 in the morning the plant lost a 230 kilovolt line -presumable due to a loss of ground or electrical fault, causing the reactor’s to “scram”-where all the control rods get inserting rapidly into the reactor, halting fission immediately and shutting down the reactor.

He notes the plant’s emergency diesle generators kicked in after the off site power was lost, providing power to safety systems.

“The plant also had to declare an ‘unusual event’ which is the lowest of four levels of emergency classification used by the NRC, because they had a loss of off site power greater than fifteen minutes.”

He says all of the safety systems operated as they should have, and off site power was restored by 5:14 am – exiting the ‘unusual event’ designation.

The plant will remain in cold shutdown, which is where the reactor is completely cooled down, depressurized, and shut off, while safety officials trouble shoot what happened and make any necessary repairs.

After a cold shut down more time is required to restart operations, than after a quicker “hot shut down”- where the reactor is left pressurized and heated. However because a reactor coolant pump was tripped the cold shut down was necesarry.

Sheehan could not give a specific time of when the reactor would be turned back on.

Sheehan says the two full time inspectors working within Oyster Creek responded immediately, and were satisfied with the response of the plant.

 

 

Best of the Web

Leave a Comment

It appears that you already have an account created within our VIP network of sites on . To keep your points and personal information safe, we need to verify that it's really you. To activate your account, please confirm your password. When you have confirmed your password, you will be able to log in through Facebook on both sites.

Forgot your password?

*Please note that your points, prizes and activities will not be shared between programs within our VIP network.

It appears that you already have an account on this site associated with . To connect your existing account with your Facebook account, just click on the account activation button below. You will maintain your existing profile and VIP program points. After you do this, you will be able to always log in to http://wobm.com using your Facebook account.

*Please note that your points, prizes and activities will not be shared between programs within our VIP network.

Please fill out the information below to help us provide you a better experience.

Register on 92.7 WOBM quickly by logging in with your Facebook account. It's just as secure, and no password to remember!

Not a Member? Sign Up Here

Register on 92.7 WOBM quickly by logging in with your Facebook account. It's just as secure, and no password to remember!