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At 0458 (EDT), a lightning strike caused a … At 0458 (EDT), a lightning strike caused a voltage disturbance on the 115 KV offsite power source and resulted in the automatic start of the 'A' emergency diesel generator on an undervoltage relay actuation. The 'A' emergency diesel generator came up to rated frequency and voltage. The voltage disturbance (duration) was not long enough to cause the normal incoming breaker to the 'A' train 7.2 KV safety related bus (XSW1DA) to open or the 'A' emergency diesel generator output breaker to close.</br>The voltage disturbance caused the 'A' safety related chiller and some ventilation fans to trip. These loads were subsequently restarted with no issue.</br>The 'A' emergency diesel generator was secured and made ready for autostart at 0520 (EDT).</br>The station is in Mode 5 for a mid cycle outage to repair a reactor coolant pump seal.</br>This notification is being made per 10CFR50.72(b)(3)(iv)(A) as a valid actuation of an emergency diesel generator.</br>The unit is in a normal electrical shutdown plant configuration.</br>The licensee notified the NRC Resident Inspector and will notify the State and Local authorities.ll notify the State and Local authorities. +
08:58:00, 24 March 2013 +
48,846 +
09:54:00, 24 March 2013 +
08:58:00, 24 March 2013 +
At 0458 (EDT), a lightning strike caused a … At 0458 (EDT), a lightning strike caused a voltage disturbance on the 115 KV offsite power source and resulted in the automatic start of the 'A' emergency diesel generator on an undervoltage relay actuation. The 'A' emergency diesel generator came up to rated frequency and voltage. The voltage disturbance (duration) was not long enough to cause the normal incoming breaker to the 'A' train 7.2 KV safety related bus (XSW1DA) to open or the 'A' emergency diesel generator output breaker to close.</br>The voltage disturbance caused the 'A' safety related chiller and some ventilation fans to trip. These loads were subsequently restarted with no issue.</br>The 'A' emergency diesel generator was secured and made ready for autostart at 0520 (EDT).</br>The station is in Mode 5 for a mid cycle outage to repair a reactor coolant pump seal.</br>This notification is being made per 10CFR50.72(b)(3)(iv)(A) as a valid actuation of an emergency diesel generator.</br>The unit is in a normal electrical shutdown plant configuration.</br>The licensee notified the NRC Resident Inspector and will notify the State and Local authorities.ll notify the State and Local authorities. +
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>.
00:00:00, 24 March 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>.
02:01:31, 2 March 2018 +
09:54:00, 24 March 2013 +
false +
false +
0.0388 d (0.93 hours, 0.00554 weeks, 0.00127 months) +
08:58:00, 24 March 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.