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At 2345 on 12/23/04 both reactor recirc pu … At 2345 on 12/23/04 both reactor recirc pumps down shifted from fast to slow speed which resulted in reactor power reducing from 100% to 44%. At 2354 an automatic scram occurred from the activation of the Oscillation Power Range Monitor (OPRM) instrumentation. After the scram all safety systems responded as designed. Cause of the reactor recirc pump downshift is still under discovery.</br>All rods fully inserted. No safety relief valves lifted during the transient. The licensee was in no major LCO at the time. Pressure control is via the steam bypass valves.</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
04:54:00, 24 December 2004 +
41,290 +
03:07:00, 24 December 2004 +
04:54:00, 24 December 2004 +
At 2345 on 12/23/04 both reactor recirc pu … At 2345 on 12/23/04 both reactor recirc pumps down shifted from fast to slow speed which resulted in reactor power reducing from 100% to 44%. At 2354 an automatic scram occurred from the activation of the Oscillation Power Range Monitor (OPRM) instrumentation. After the scram all safety systems responded as designed. Cause of the reactor recirc pump downshift is still under discovery.</br>All rods fully inserted. No safety relief valves lifted during the transient. The licensee was in no major LCO at the time. Pressure control is via the steam bypass valves.</br>The licensee has notified the NRC Resident Inspector.e has 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>.
44 +
05000440/LER-2005-001, And LER 05-001-00 Perry Nuclear Power Plant Regarding Unplanned Automatic Oscillation Power Range Monitor Scram and Manual Reactor Scram Following Unexpected Reactor Recirculation Pump Trip + and And LER 05-001-00 Perry Nuclear Power Plant Regarding Unplanned Automatic Oscillation Power Range Monitor Scram and Manual Reactor Scram Following Unexpected Reactor Recirculation Pump Trip +
00:00:00, 24 December 2004 +
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>.
02:22:05, 2 March 2018 +
03:07:00, 24 December 2004 +
true +
-0.0742 d (-1.78 hours, -0.0106 weeks, -0.00244 months) +
04:54:00, 24 December 2004 +
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.