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On 10/11/18 at 2304, with both Surry Units … On 10/11/18 at 2304, with both Surry Units at 100% power, the 'A' Reserve Station Service Transformer (RSST) tripped on a pilot wire lockout. This resulted in electrical isolation of the 'A' RSST, the 'D' Transfer Bus and the Unit 1 'J' Emergency Bus. The #3 Emergency Diesel Generator (EDG) started and loaded on the Emergency Bus, as designed. Operations entered the appropriate Abnormal Procedures and stabilized the unit. All equipment operated as expected during the event.</br>A report of a flash at the 'A' RSST was received (at approximately the time of the initiating event) but there were no reports of visible damage, smoke or fire from the RSST or any associated breakers on subsequent investigation. The #3 EDG is running with normal parameters.</br>There was heavy wind/rain in the area associated with Tropical Storm Michael.</br>All other electrical distribution systems are in a normal alignment.</br>The organization is staffing to evaluate the lockout and required actions for recovery.</br>No radiological consequences resulted from this event.</br>This event is being reported IAW (in accordance with) 10 CFR 50.52(b)(3)(iv)(A) due to the actuation of the #3 EDG.</br>The NRC Resident (Inspector) was notified
The NRC Resident (Inspector) was notified +
04:00:00, 11 October 2018 +
53,662 +
01:14:00, 12 October 2018 +
04:00:00, 11 October 2018 +
On 10/11/18 at 2304, with both Surry Units … On 10/11/18 at 2304, with both Surry Units at 100% power, the 'A' Reserve Station Service Transformer (RSST) tripped on a pilot wire lockout. This resulted in electrical isolation of the 'A' RSST, the 'D' Transfer Bus and the Unit 1 'J' Emergency Bus. The #3 Emergency Diesel Generator (EDG) started and loaded on the Emergency Bus, as designed. Operations entered the appropriate Abnormal Procedures and stabilized the unit. All equipment operated as expected during the event.</br>A report of a flash at the 'A' RSST was received (at approximately the time of the initiating event) but there were no reports of visible damage, smoke or fire from the RSST or any associated breakers on subsequent investigation. The #3 EDG is running with normal parameters.</br>There was heavy wind/rain in the area associated with Tropical Storm Michael.</br>All other electrical distribution systems are in a normal alignment.</br>The organization is staffing to evaluate the lockout and required actions for recovery.</br>No radiological consequences resulted from this event.</br>This event is being reported IAW (in accordance with) 10 CFR 50.52(b)(3)(iv)(A) due to the actuation of the #3 EDG.</br>The NRC Resident (Inspector) was notified
The NRC Resident (Inspector) was notified +
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100 +
00:00:00, 12 October 2018 +
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>.
05:01:16, 24 February 2020 +
01:14:00, 12 October 2018 +
true +
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0.885 d (21.23 hours, 0.126 weeks, 0.0291 months) +
04:00:00, 11 October 2018 +
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.