Browse wiki
Jump to navigation
Jump to search
98 +
On Tuesday May 31, 2005, Limerick Unit 2 w … On Tuesday May 31, 2005, Limerick Unit 2 was operating at 100% power at 10:31 hours when the 2A Reactor Recirculation Motor-Generator speed increased to the high-speed stop. Reactor power increased to approximately 106% and three main steam bypass valves opened as designed to control pressure. Operators reduced power to 98% as directed by emergency operating procedures using the 2B Reactor Recirculation Pump. </br>This event caused thermal power to exceed the 100% rated maximum power level of 3458 megawatts thermal specified in section 2.C.(1.) of the Limerick Unit 2 operating license. Therefore, this event is being reported via ENS within 24 hours with a written followup within 30 days as required by section 2.E of the Limerick Unit 2 operating license.</br>The licensee stated that power level exceeded 100% for approximately 1 minute during the event transient. Both the mechanical and electrical overspeed stops on the MG set were actuated. The licensee reviewed the transient and it does not appear that any other thermal limits were exceeded and there is no indication of any affect on the core or the fuel. Although trouble-shooting of the problem is still in progress, the licensee currently believes that the event was caused by the MG set controller. The licensee plans to remain at approximately 97% power until the problem is resolved.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
14:31:00, 31 May 2005 +
41,736 +
17:22:00, 31 May 2005 +
14:31:00, 31 May 2005 +
On Tuesday May 31, 2005, Limerick Unit 2 w … On Tuesday May 31, 2005, Limerick Unit 2 was operating at 100% power at 10:31 hours when the 2A Reactor Recirculation Motor-Generator speed increased to the high-speed stop. Reactor power increased to approximately 106% and three main steam bypass valves opened as designed to control pressure. Operators reduced power to 98% as directed by emergency operating procedures using the 2B Reactor Recirculation Pump. </br>This event caused thermal power to exceed the 100% rated maximum power level of 3458 megawatts thermal specified in section 2.C.(1.) of the Limerick Unit 2 operating license. Therefore, this event is being reported via ENS within 24 hours with a written followup within 30 days as required by section 2.E of the Limerick Unit 2 operating license.</br>The licensee stated that power level exceeded 100% for approximately 1 minute during the event transient. Both the mechanical and electrical overspeed stops on the MG set were actuated. The licensee reviewed the transient and it does not appear that any other thermal limits were exceeded and there is no indication of any affect on the core or the fuel. Although trouble-shooting of the problem is still in progress, the licensee currently believes that the event was caused by the MG set controller. The licensee plans to remain at approximately 97% power until the problem is resolved.</br>The licensee notified the NRC Resident Inspector.ensee 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, 31 May 2005 +
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>.
02:20:54, 2 March 2018 +
17:22:00, 31 May 2005 +
true +
false +
0.119 d (2.85 hours, 0.017 weeks, 0.0039 months) +
14:31:00, 31 May 2005 +
Operation at Greater than Licensed Power Lever (106% Rated) Due to Recirc Pump Motor Generator Set Fault +
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.