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Following a downpower to 75% for replaceme … Following a downpower to 75% for replacement of DEH-SV-TRIP/B (solenoid for quadvoter valve) a reactor SCRAM occurred during the performance of the DEH (Digital Electric Hydraulic) quadvoter valve testing. The cause of the reactor SCRAM was Governor Valve Fast Closure signal due to DEH trip header pressure fluctuation. The cause of the DEH trip header pressure fluctuation is unknown and being investigated. All rods fully inserted. MSIVs remained open. No SRVs opened. RPV level is being controlled in the normal band using the feedwater and condensate systems. RPV pressure is being controlled in the normal band using the Bypass valves and Main Steam Line drains. All other safety systems operated as designed. Off-site power is available. All three emergency diesel generators are operable and available.</br>The licensee will be making a press release.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
19:25:00, 8 February 2009 +
18:08:00, 8 February 2009 +
19:25:00, 8 February 2009 +
Following a downpower to 75% for replaceme … Following a downpower to 75% for replacement of DEH-SV-TRIP/B (solenoid for quadvoter valve) a reactor SCRAM occurred during the performance of the DEH (Digital Electric Hydraulic) quadvoter valve testing. The cause of the reactor SCRAM was Governor Valve Fast Closure signal due to DEH trip header pressure fluctuation. The cause of the DEH trip header pressure fluctuation is unknown and being investigated. All rods fully inserted. MSIVs remained open. No SRVs opened. RPV level is being controlled in the normal band using the feedwater and condensate systems. RPV pressure is being controlled in the normal band using the Bypass valves and Main Steam Line drains. All other safety systems operated as designed. Off-site power is available. All three emergency diesel generators are operable and available.</br>The licensee will be making a press release.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
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75 +
00:00:00, 8 February 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>.
02:12:44, 2 March 2018 +
18:08:00, 8 February 2009 +
true +
-0.0533 d (-1.28 hours, -0.00762 weeks, -0.00175 months) +
19:25:00, 8 February 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.