Browse wiki
Jump to navigation
Jump to search
At 1805, due to lowering Condenser Vacuum … At 1805, due to lowering Condenser Vacuum caused by ingress of algae and seaweed, Unit 2 was manually tripped. Power had been reduced to 94% for the securing of one Circulating Water Pump (2A1). It was then identified that 2A2 Circulating Water Debris filter differential pressure was above administrative limits of 200 inches water. While the station was making preparations to reduce Circulating water flow on the 2A2 Circulating Water Pump, the unit began losing condenser vacuum. Plant was manually tripped at 92% power. All CEA's fully inserted on the trip. Auxiliary Feedwater automatically initiated on Low Steam Generator Level. No PZR PORVS opened. RCS Heat removal is now being maintained with Main Feedwater and Steam Bypass control system. All systems functioned normally, and plant is stabilized at normal operating Temperature and Pressure. This non-emergency notification is being made pursuant to 10 CFR 50.72(b)(2)(iv)(B) due to manual RPS actuation and 10 CFR 50.72(b)(3)(iv)(B) due to PWR auxiliary feedwater system actuation.</br>There was no impact on Unit 1.</br>The licensee informed the Resident Inspector. licensee informed the Resident Inspector. +
22:05:00, 1 April 2009 +
44,952 +
20:51:00, 1 April 2009 +
22:05:00, 1 April 2009 +
At 1805, due to lowering Condenser Vacuum … At 1805, due to lowering Condenser Vacuum caused by ingress of algae and seaweed, Unit 2 was manually tripped. Power had been reduced to 94% for the securing of one Circulating Water Pump (2A1). It was then identified that 2A2 Circulating Water Debris filter differential pressure was above administrative limits of 200 inches water. While the station was making preparations to reduce Circulating water flow on the 2A2 Circulating Water Pump, the unit began losing condenser vacuum. Plant was manually tripped at 92% power. All CEA's fully inserted on the trip. Auxiliary Feedwater automatically initiated on Low Steam Generator Level. No PZR PORVS opened. RCS Heat removal is now being maintained with Main Feedwater and Steam Bypass control system. All systems functioned normally, and plant is stabilized at normal operating Temperature and Pressure. This non-emergency notification is being made pursuant to 10 CFR 50.72(b)(2)(iv)(B) due to manual RPS actuation and 10 CFR 50.72(b)(3)(iv)(B) due to PWR auxiliary feedwater system actuation.</br>There was no impact on Unit 1.</br>The licensee informed the Resident Inspector. licensee informed the 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>.
92 +
00:00:00, 1 April 2009 +
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>.
22:32:46, 24 September 2017 +
20:51:00, 1 April 2009 +
true +
true +
-0.0513 d (-1.23 hours, -0.00732 weeks, -0.00168 months) +
22:05:00, 1 April 2009 +
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.