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At 0803 EST on 12/29/2012 With Unit 1 and … At 0803 EST on 12/29/2012 With Unit 1 and Unit 2 operating at 100%, the Supply breaker to 'B' Reserve Station Transformer (RSST), 0-EP-BKR-252 tripped on an instantaneous over current of the B-C phases due to a Pelican contacting the lines. This resulted in a lockout of the 'B' RSST and loss of power to the Unit 2 'H' Emergency Bus from its normal off site power supply. #2 Emergency Diesel Generator auto started on under voltage and loaded onto the Unit 2 'H' Emergency Bus. The Operations staff entered abnormal operating procedure 2-AP-10.07, Loss of Unit 2 Power, to recover from the electrical transient. All equipment performed as expected during the event and there were no unexplained occurrences. Maintenance has verified there is no damage to the line, breaker or 'B' RSST and at 1242 EST offsite power was restored to Unit 2 'H' Emergency Bus. At 1501, #2 Emergency Diesel Generator was secured in accordance with Station Operating procedures.</br>Currently Unit 1 is operating at 100%, 922 MWE.</br>Currently Unit 2 is operating at 100%, 915 MWE.</br>All electrical distribution systems were restored to a normal alignment.</br>No adverse radiological consequences resulted from this event. There were no radiation releases due to this event, nor were there any personnel injuries or contamination events.</br>This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) due to the auto start of #2 Emergency Diesel Generator.</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
13:03:00, 29 December 2012 +
48,638 +
15:21:00, 29 December 2012 +
13:03:00, 29 December 2012 +
At 0803 EST on 12/29/2012 With Unit 1 and … At 0803 EST on 12/29/2012 With Unit 1 and Unit 2 operating at 100%, the Supply breaker to 'B' Reserve Station Transformer (RSST), 0-EP-BKR-252 tripped on an instantaneous over current of the B-C phases due to a Pelican contacting the lines. This resulted in a lockout of the 'B' RSST and loss of power to the Unit 2 'H' Emergency Bus from its normal off site power supply. #2 Emergency Diesel Generator auto started on under voltage and loaded onto the Unit 2 'H' Emergency Bus. The Operations staff entered abnormal operating procedure 2-AP-10.07, Loss of Unit 2 Power, to recover from the electrical transient. All equipment performed as expected during the event and there were no unexplained occurrences. Maintenance has verified there is no damage to the line, breaker or 'B' RSST and at 1242 EST offsite power was restored to Unit 2 'H' Emergency Bus. At 1501, #2 Emergency Diesel Generator was secured in accordance with Station Operating procedures.</br>Currently Unit 1 is operating at 100%, 922 MWE.</br>Currently Unit 2 is operating at 100%, 915 MWE.</br>All electrical distribution systems were restored to a normal alignment.</br>No adverse radiological consequences resulted from this event. There were no radiation releases due to this event, nor were there any personnel injuries or contamination events.</br>This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) due to the auto start of #2 Emergency Diesel Generator.</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
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, 29 December 2012 +
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>.
02:02:08, 2 March 2018 +
15:21:00, 29 December 2012 +
true +
false +
0.0958 d (2.3 hours, 0.0137 weeks, 0.00315 months) +
13:03:00, 29 December 2012 +
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.