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Nuclear Event: Manual Reactor SCRAM, Vogtle Electric Generating Plant, Georgia

2017/02/06

Nuclear Event in USA on Friday, 03 February, 2017 at 15:45 [EST]

Vogtle Nuclear Power Plant

Vogtle Nuclear Power Plant, located near Waynesboro in eastern Georgia near the South Carolina border. — Southern Nuclear Operating Co., Inc. Image Wikipedia

North America – USA | State of Georgia, Burke County – Vogtle Electric Generating Plant, Unit 1
Location: 33°08’36.0″N 81°45’38.0″W
Present Operational Age: ~30 years
Event:  RPS ACTUATION – CRITICAL – NON EMERGENCY

UNIT 1 MANUAL REACTOR TRIP DUE TO LOOP 1 MSIV STARTING TO FAIL CLOSED

“At 1545 EST on 2/3/17, Vogtle Unit 1 was manually tripped from 100% power when loop 1 Main Steam Isolation Valve (MSIV) started to fail closed. Non-Safety Related 4160V bus 1NA01 failed to transfer to alternate incoming power supply automatically and was successfully manually energized.

“All control rods fully inserted and AFW [Auxiliary Feedwater] and FWI [Feedwater Isolation] actuated as expected.

“Unit 1 is in Mode 3 and stable with decay heat being removed by AFW.”

The licensee informed the NRC Resident Inspector.

Source: NRC  Event Number: 52534

 

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