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ENS 50092
Show incoming properties 
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
This 4 and 8 hour notification is being ma … This 4 and 8 hour notification is being made to report that Salem Unit 1 experienced an unplanned automatic reactor trip and subsequent Auxiliary Feedwater System actuation. The automatic trip was initiated from a generator protection relay. A troubleshooting team is being assembled to determine the exact cause for the generator protection actuation. 11, 12 and 13 Aux Feedwater Pumps automatically started as expected on low</br>Steam Generator water level following the reactor trip. All control rods inserted on the reactor trip. All ECCS and ESF systems functioned as expected.</br>Salem Unit 1 is currently in Mode 3. Reactor Coolant system pressure is at 2235 PSIG and temperature is 547 F with decay heat removal via the Main Steam Dumps and Auxiliary Feedwater Systems. Condenser vacuum was available for the duration of the event.</br>The 12 Chiller was tagged for maintenance prior to this event and had no adverse impact on the post trip plant response or stabilization. No personnel were injured during this event.</br>The licensee notified the NRC Resident Inspectorcensee notified the NRC Resident Inspector  +
Discovered date
08:56:00, 7 May 2014  +
ENS id number
50,092  +
Emergency class
Non Emergency +
Entered date
07:45:00, 7 May 2014  +
Equipment trip
Reactor Trip +
Event date
08:56:00, 7 May 2014  +
Event description
This 4 and 8 hour notification is being ma … This 4 and 8 hour notification is being made to report that Salem Unit 1 experienced an unplanned automatic reactor trip and subsequent Auxiliary Feedwater System actuation. The automatic trip was initiated from a generator protection relay. A troubleshooting team is being assembled to determine the exact cause for the generator protection actuation. 11, 12 and 13 Aux Feedwater Pumps automatically started as expected on low</br>Steam Generator water level following the reactor trip. All control rods inserted on the reactor trip. All ECCS and ESF systems functioned as expected.</br>Salem Unit 1 is currently in Mode 3. Reactor Coolant system pressure is at 2235 PSIG and temperature is 547 F with decay heat removal via the Main Steam Dumps and Auxiliary Feedwater Systems. Condenser vacuum was available for the duration of the event.</br>The 12 Chiller was tagged for maintenance prior to this event and had no adverse impact on the post trip plant response or stabilization. No personnel were injured during this event.</br>The licensee notified the NRC Resident Inspectorcensee notified the NRC Resident Inspector  +
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ENS 50092 +, ENS 50092 +, ENS 50092 +, ENS 50092 +, ENS 50092 +, ENS 50092 +, ENS 50092 +, ENS 50092 +, ENS 50092 +, ENS 50092 +, ENS 50092 +, ENS 50092 +, ENS 50092 +, ENS 50092 +  and ENS 50092 +
Hours
9.259259e-5 d (0.00222 hours, 1.322751e-5 weeks, 3.044e-6 months)  +
Initial power
97  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 7 May 2014  +
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>.
01:50:52, 2 March 2018  +
NRC officer
Charles Teal +
Notification date
07:45:00, 7 May 2014  +
Originated by
Eric Powell +
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
-0.0492 d (-1.18 hours, -0.00702 weeks, -0.00162 months)  +
Scram
Automatic Scram +
Site
Salem +
Start date
08:56:00, 7 May 2014  +
State
New Jersey +
System
Steam Generator +, Reactor Coolant System +, Feedwater +, Auxiliary Feedwater +, Decay Heat Removal +, Control Rod +  and Main Steam +
Title
Automatic Trip Due to Generator Protection Relay  +
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/2014/20140508en.html#en50092  +
Unit
1  +
 
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