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ENS 50893
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Category
ENS Notification  and Power Reactor
CFR
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +, 10 CFR 50.72(b)(3)(iv)(A), System Actuation +  and 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge +
Current power
0  +
Current reactor mode
Hot Standby +
Description
Vogtle Unit 2 was operating in Mode 1 at 1 … Vogtle Unit 2 was operating in Mode 1 at 100% rated thermal power. At 0429 EDT a Unit 2 automatic Reactor Trip and Safety Injection / Steamline Isolation occurred. All systems operated as expected and all control rods fully inserted. The Safety Injection was terminated at 0447 EDT and the emergency operating procedures were exited at 0522 EDT. Unit 2 is stable in Mode 3 with decay heat removal via the Auxiliary Feedwater system and the atmospheric relief valves. A response team is investigating the cause of the event. Unit 1 was unaffected by the event.</br>NRC Senior Resident Inspector was notified and is at plant site for investigation.ed and is at plant site for investigation.  +
Discovered date
08:29:00, 14 March 2015  +
ENS id number
50,893  +
Emergency class
Non Emergency +
Entered date
08:07:00, 14 March 2015  +
Event date
08:29:00, 14 March 2015  +
Event description
Vogtle Unit 2 was operating in Mode 1 at 1 … Vogtle Unit 2 was operating in Mode 1 at 100% rated thermal power. At 0429 EDT a Unit 2 automatic Reactor Trip and Safety Injection / Steamline Isolation occurred. All systems operated as expected and all control rods fully inserted. The Safety Injection was terminated at 0447 EDT and the emergency operating procedures were exited at 0522 EDT. Unit 2 is stable in Mode 3 with decay heat removal via the Auxiliary Feedwater system and the atmospheric relief valves. A response team is investigating the cause of the event. Unit 1 was unaffected by the event.</br>NRC Senior Resident Inspector was notified and is at plant site for investigation.ed and is at plant site for investigation.  +
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ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +, ENS 50893 +  and ENS 50893 +
Initial power
100  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 14 March 2015  +
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>.
01:48:20, 2 March 2018  +
NRC officer
Steve Sandin +
Notification date
08:07:00, 14 March 2015  +
Originated by
Matt Freck +
Reactor critical
true  +
Reactor type
Westinghouse PWR 4-Loop +
Region
NRC Region 2 +
Reporting criterion
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +, 10 CFR 50.72(b)(3)(iv)(A), System Actuation +  and 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge +
Reporting time
-0.0154 d (-0.37 hours, -0.0022 weeks, -5.06826e-4 months)  +
Scram
Automatic Scram +
Site
Vogtle +
Start date
08:29:00, 14 March 2015  +
State
Georgia +
System
Auxiliary Feedwater +, Decay Heat Removal +  and Control Rod +
Title
Automatic Reactor Trip on System Injection Actuation Signal  +
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/2015/20150316en.html#en50893  +
Unit
2  +
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