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ENS 45196
Show incoming properties
Category
ENS Notification  and Power Reactor
Atomic Element
Tin +
CFR
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor +, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration +  and 10 CFR 50.72(b)(3)(iv)(A), System Actuation +
Current power
0  +
Current reactor mode
Hot Shutdown +
Description
At 0135 EDT on 07/12 both Startup Transfor … At 0135 EDT on 07/12 both Startup Transformers "SA" and "SB" were deenergized due to the loss of the 34.5kV power distribution lines (offsite power). The licensee declared an Unusual Event at 0148 EDT based on the loss of power to both transformers for greater than 15 minutes (EAL MU1). </br>As a result of the loss of offsite power, the Unit automatically scrammed with all control rods fully inserting. Both Emergency Diesel Generators EDG #1 and EDG #2 auto started and are carrying vital loads. The Unit is stable in Hot Shutdown with decay heat removal via the Isolation Condenser. The licensee reported that the transient may be due to a possible lightning strike caused by adverse weather.</br>The licensee informed the NJ State Police and the NRC Resident Inspector.</br>* * * UPDATE AT 0413 EDT ON 07/12/09 FROM WILL TOLBERT TO DONALD NORWOOD * * *</br>At 0405 EDT on 07/12 the licensee terminated the Unusual Event based on restoration of offsite power and reenergizing both Startup Transformers.</br>The licensee informed the NJ State Police and the NRC Resident Inspector. Notified R1 (Lew), EO (Holian), IRD (Gott), FEMA (Austin) and DHS (Inzer).</br>* * * UPDATE AT 0413 EDT ON 07/13/09 FROM CALVIN TAYLOR TO DONALD NORWOOD * * *</br>Licensee changed one reporting requirement from 50.72(b)(3)(v)(B) to 50.72(b)(3)(iv)(A).</br>Notified R1DO (Dentel).0.72(b)(3)(iv)(A). Notified R1DO (Dentel).  +
Discovered date
05:48:00, 12 July 2009  +
ENS id number
45,196  +
Emergency class
Unusual Event +
Entered date
02:11:00, 12 July 2009  +
Event date
05:48:00, 12 July 2009  +
Event description
At 0135 EDT on 07/12 both Startup Transfor … At 0135 EDT on 07/12 both Startup Transformers "SA" and "SB" were deenergized due to the loss of the 34.5kV power distribution lines (offsite power). The licensee declared an Unusual Event at 0148 EDT based on the loss of power to both transformers for greater than 15 minutes (EAL MU1). </br>As a result of the loss of offsite power, the Unit automatically scrammed with all control rods fully inserting. Both Emergency Diesel Generators EDG #1 and EDG #2 auto started and are carrying vital loads. The Unit is stable in Hot Shutdown with decay heat removal via the Isolation Condenser. The licensee reported that the transient may be due to a possible lightning strike caused by adverse weather.</br>The licensee informed the NJ State Police and the NRC Resident Inspector.</br>* * * UPDATE AT 0413 EDT ON 07/12/09 FROM WILL TOLBERT TO DONALD NORWOOD * * *</br>At 0405 EDT on 07/12 the licensee terminated the Unusual Event based on restoration of offsite power and reenergizing both Startup Transformers.</br>The licensee informed the NJ State Police and the NRC Resident Inspector. Notified R1 (Lew), EO (Holian), IRD (Gott), FEMA (Austin) and DHS (Inzer).</br>* * * UPDATE AT 0413 EDT ON 07/13/09 FROM CALVIN TAYLOR TO DONALD NORWOOD * * *</br>Licensee changed one reporting requirement from 50.72(b)(3)(v)(B) to 50.72(b)(3)(iv)(A).</br>Notified R1DO (Dentel).0.72(b)(3)(iv)(A). Notified R1DO (Dentel).  +
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 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +, ENS 45196 +  and ENS 45196 +
Initial power
100  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 14 July 2009  +
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>.
02:11:41, 2 March 2018  +
NRC officer
Steve Sandin +
Notification date
02:11:00, 12 July 2009  +
Originated by
Herb Tritt +
Person
Donald Norwood +
Reactor critical
true  +
Reactor type
GE-2 +
Region
NRC Region 1 +
Reporting criterion
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor +, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration +  and 10 CFR 50.72(b)(3)(iv)(A), System Actuation +
Reporting time
-0.151 d (-3.62 hours, -0.0215 weeks, -0.00496 months)  +
Site
Oyster Creek +
Start date
05:48:00, 12 July 2009  +
State
New Jersey +
System
Emergency Diesel Generator +, Decay Heat Removal +  and Control Rod +
Title
Unusual Event Declared Due to a Loss of Offsite Power  +
Topic
Loss of Offsite Power +
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/2009/20090714en.html#en45196  +
Unit
1  +
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