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ENS 49012
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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 reactor automatically tripped at 2147 … The reactor automatically tripped at 2147 EDT. All control rods fully inserted on the trip and all systems responded as expected. Decay heat removal is to the main condenser. The plant is in its normal shutdown electrical lineup. The licensee is investigating the cause of the reactor trip.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector.  +
Discovered date
01:47:00, 9 May 2013  +
ENS id number
49,012  +
Emergency class
Non Emergency +
Entered date
00:09:00, 9 May 2013  +
Equipment trip
Reactor Trip +
Event date
01:47:00, 9 May 2013  +
Event description
The reactor automatically tripped at 2147 … The reactor automatically tripped at 2147 EDT. All control rods fully inserted on the trip and all systems responded as expected. Decay heat removal is to the main condenser. The plant is in its normal shutdown electrical lineup. The licensee is investigating the cause of the reactor trip.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector.  +
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ENS 49012 +, ENS 49012 +, ENS 49012 +, ENS 49012 +, ENS 49012 +, ENS 49012 +, ENS 49012 +, ENS 49012 +, ENS 49012 +, ENS 49012 +, ENS 49012 +, ENS 49012 +, ENS 49012 +  and ENS 49012 +
Initial power
100  +
Initial reactor mode
Power Operation +
LER
05000318/LER-2013-003, Regarding Reactor Trip Due to Intermittent Failure in the Turbine Control System +  and Regarding Reactor Trip Due to Intermittent Failure in the Turbine Control System +
Last update date
00:00:00, 9 May 2013  +
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>.
22:22:29, 24 September 2017  +
NRC officer
Mark Abramovitz +
Notification date
00:09:00, 9 May 2013  +
Originated by
Charles Morgan +
Reactor critical
true  +
Reactor type
CE +
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
-0.0679 d (-1.63 hours, -0.0097 weeks, -0.00223 months)  +
Site
Calvert Cliffs +
Start date
01:47:00, 9 May 2013  +
State
Maryland +
System
Decay Heat Removal +, Main Condenser +  and Control Rod +
Title
Automatic 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/2013/20130510en.html#en49012  +
Unit
2  +
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