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ENS 51762
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Category
ENS Notification  and Power Reactor
CFR
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +  and 10 CFR 50.72(b)(3)(iv)(A), System Actuation +
Current power
0  +
Current reactor mode
Hot Standby +
Description
The turbine tripped for an unknown cause f … The turbine tripped for an unknown cause followed by a reactor trip. All systems are functioning as designed. Operators have transitioned out of the EOP (Emergency Operating Procedure) network into normal operating procedures. The plant is stable in mode 3.</br>All control rods fully inserted during the trip and no safety or relief valves lifted. The plant is in its normal shutdown electrical lineup. Emergency Feedwater actuation occurred to restore steam generator levels. The plant expects to make a press release.</br>The licensee notified the NRC Resident Inspector.</br>* * * UPDATE AT 1043 EST ON 3/2/16 FROM BARRY BRADBURY TO S. SANDIN * * * </br>The licensee will not issue a press release for this event.</br>The licensee will inform the NRC Resident Inspector. Notified R1DO (Cook).Resident Inspector. Notified R1DO (Cook).  +
Discovered date
07:53:00, 2 March 2016  +
ENS id number
51,762  +
Emergency class
Non Emergency +
Entered date
04:27:00, 2 March 2016  +
Equipment trip
Turbine Trip +  and Reactor Trip +
Event date
07:53:00, 2 March 2016  +
Event description
The turbine tripped for an unknown cause f … The turbine tripped for an unknown cause followed by a reactor trip. All systems are functioning as designed. Operators have transitioned out of the EOP (Emergency Operating Procedure) network into normal operating procedures. The plant is stable in mode 3.</br>All control rods fully inserted during the trip and no safety or relief valves lifted. The plant is in its normal shutdown electrical lineup. Emergency Feedwater actuation occurred to restore steam generator levels. The plant expects to make a press release.</br>The licensee notified the NRC Resident Inspector.</br>* * * UPDATE AT 1043 EST ON 3/2/16 FROM BARRY BRADBURY TO S. SANDIN * * * </br>The licensee will not issue a press release for this event.</br>The licensee will inform the NRC Resident Inspector. Notified R1DO (Cook).Resident Inspector. Notified R1DO (Cook).  +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
ENS 51762 +, ENS 51762 +, ENS 51762 +, ENS 51762 +, ENS 51762 +, ENS 51762 +, ENS 51762 +, ENS 51762 +, ENS 51762 +, ENS 51762 +, ENS 51762 +, ENS 51762 +, ENS 51762 +, ENS 51762 +  and ENS 51762 +
Initial power
100  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 2 March 2016  +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
01:45:38, 2 March 2018  +
NRC officer
Mark Abramovitz +
Notification date
04:27:00, 2 March 2016  +
Originated by
Andy Caramihalis +
Procedure
Emergency Operating Procedure +
Reactor critical
true  +
Reactor type
Westinghouse PWR 4-Loop +
Region
NRC Region 1 +
Reporting criterion
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +  and 10 CFR 50.72(b)(3)(iv)(A), System Actuation +
Reporting time
-0.143 d (-3.43 hours, -0.0204 weeks, -0.0047 months)  +
Site
Seabrook +
Start date
07:53:00, 2 March 2016  +
State
New Hampshire +
System
Steam Generator +, Feedwater +  and Control Rod +
Title
Turbine Trip Causing a Reactor Trip  +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.
http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2016/20160303en.html#en51762  +
Unit
1  +
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