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NRC Issues Event Notification for Summer Nuclear Plant in S.C.

  • Nov 19, 2021
  • 125 views
Source: 
Targeted News Service

WASHINGTON, Nov. 16 -- The Nuclear Regulatory Commission issued the following event notification (No. 55580) involving Summer Nuclear Plant, South Carolina:

MANUAL REACTOR TRIP DUE TO MAIN TRANSFORMER FAULT

"At 1728 EST on 11/15/2021, with Unit 1 in Mode 1 at 47 percent power, the reactor was manually tripped due to a main transformer fault. The trip was not complex, with all systems responding normally post-trip. Operations responded and stabilized the plant. Decay heat is being removed by the emergency feedwater system through the main condenser.

"Due to the Reactor Protection System actuation while critical, this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(iv)(B).

"Additionally, due to the valid actuation of the emergency feedwater system, this event is being reported as a non-emergency notification per 10 CFR 50.72(b)(3)(iv)(A).

"There was no impact on the health and safety of the public or plant personnel. The NRC Senior Resident Inspector has been notified."

Power Reactor

Event Number: 55580

Facility: Summer

Region: 2

State: SC

Unit: [1] [] []

RX Type: [1] W-3-LP,[2] W-AP1000,[3] W-AP1000

NRC Notified By: Leon Smith

HQ OPS Officer: Donald Norwood

Notification Date: 11/15/2021

Notification Time: 21:00 [ET]

Event Date: 11/15/2021

Event Time: 17:28 [EST]

Last Update Date: 11/15/2021

Emergency Class: Non Emergency

10 CFR Section:

50.72(b)(2)(iv)(B) - RPS Actuation - Critical

50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation

Person (Organization):

Miller, Mark (R2)

Table omitted: https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2021/2...

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