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At 0304 (CDT), on Sept 25, 2013, the Duane … At 0304 (CDT), on Sept 25, 2013, the Duane Arnold Energy Center (DAEC) Technical Support Center (TSC) normal power supply was lost when the T4 '36KV-12.5KV DAEC SITE TRANSFORMER' was lost. Automatic power transfer occurred to maintain power to the TSC from the TSC Emergency Diesel Generator (EDG) which automatically started. Prior to the loss of normal power, the TSC Emergency Diesel Generator maintenance functional testing had been completed and was in standby readiness, awaiting post maintenance testing to be completed on the auto start circuit. The TSC Emergency Diesel Generator responded normally to the loss of power and energized TSC loads. The TSC remained functional throughout the incident.</br>This notification is being made pursuant to 10 CFR 50.72(b)(3)(xiii) due to the loss of an emergency assessment capability. An update will be provided once the normal power supply has been restored.</br>The NRC Resident Inspector has been notified.</br>* * * UPDATE FROM STEVE SPEIRS TO HOWIE CROUCH AT 1844 EDT ON 11/2/13 * * *</br>The TSC normal power supply was returned to service at 1830 EDT on 11/2/13. The licensee will be notifying the NRC Resident Inspector.</br>Notified R3DO (Daley).Resident Inspector.
Notified R3DO (Daley). +
08:04:00, 25 September 2013 +
11:08:00, 25 September 2013 +
08:04:00, 25 September 2013 +
At 0304 (CDT), on Sept 25, 2013, the Duane … At 0304 (CDT), on Sept 25, 2013, the Duane Arnold Energy Center (DAEC) Technical Support Center (TSC) normal power supply was lost when the T4 '36KV-12.5KV DAEC SITE TRANSFORMER' was lost. Automatic power transfer occurred to maintain power to the TSC from the TSC Emergency Diesel Generator (EDG) which automatically started. Prior to the loss of normal power, the TSC Emergency Diesel Generator maintenance functional testing had been completed and was in standby readiness, awaiting post maintenance testing to be completed on the auto start circuit. The TSC Emergency Diesel Generator responded normally to the loss of power and energized TSC loads. The TSC remained functional throughout the incident.</br>This notification is being made pursuant to 10 CFR 50.72(b)(3)(xiii) due to the loss of an emergency assessment capability. An update will be provided once the normal power supply has been restored.</br>The NRC Resident Inspector has been notified.</br>* * * UPDATE FROM STEVE SPEIRS TO HOWIE CROUCH AT 1844 EDT ON 11/2/13 * * *</br>The TSC normal power supply was returned to service at 1830 EDT on 11/2/13. The licensee will be notifying the NRC Resident Inspector.</br>Notified R3DO (Daley).Resident Inspector.
Notified R3DO (Daley). +
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>.
100 +
00:00:00, 2 November 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>.
01:52:46, 2 March 2018 +
11:08:00, 25 September 2013 +
true +
false +
0.128 d (3.07 hours, 0.0183 weeks, 0.00421 months) +
08:04:00, 25 September 2013 +
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.