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At 11:11 Unit 1 Turbine Tripped initiating … At 11:11 Unit 1 Turbine Tripped initiating Reactor Trip. Initial Indications are Turbine Trip due to Lo Auto Stop Oil Pressure on 2 pressure switches. Investigating Switch Actuations.</br>#2 and #4 S/G (Steam Generator) Atmospheric Relief Valves did not control properly and RxOp (Reactor Operator) closed valves with Control Switch.</br>Current Conditions: U1 (Unit 1) Mode 3, Stm Dumps In Service Normal, RCS temp at 547.4F, Pressure 2238 psig. 2 AFW (Auxiliary Feedwater) trains In Service at Normal Operation.</br>All Rods Fully Inserted. Yes.</br>The licensee indicated there was not excessive cooldown or depressurization in the steam generators whose atmospheric relief valves had to be manually closed.</br>The NRC Resident Inspector has been notified.</br>* * * UPDATE PROVIDED BY LICENSEE (FIELDS) TO NRC (HELD) ON 4/9/05 ON 1901 * * *</br>AFW Actuation - due to FW (Feedwater) Isol(ation) tripping both MFPs (Main Feed Pumps) (trips start AFW)</br>AFW includes 2 motor-driven and 1 turbine-driven pump.</br>R2DO (Rogers) notified.rbine-driven pump.
R2DO (Rogers) notified. +
15:11:00, 9 April 2005 +
41,583 +
13:20:00, 9 April 2005 +
15:11:00, 9 April 2005 +
At 11:11 Unit 1 Turbine Tripped initiating … At 11:11 Unit 1 Turbine Tripped initiating Reactor Trip. Initial Indications are Turbine Trip due to Lo Auto Stop Oil Pressure on 2 pressure switches. Investigating Switch Actuations.</br>#2 and #4 S/G (Steam Generator) Atmospheric Relief Valves did not control properly and RxOp (Reactor Operator) closed valves with Control Switch.</br>Current Conditions: U1 (Unit 1) Mode 3, Stm Dumps In Service Normal, RCS temp at 547.4F, Pressure 2238 psig. 2 AFW (Auxiliary Feedwater) trains In Service at Normal Operation.</br>All Rods Fully Inserted. Yes.</br>The licensee indicated there was not excessive cooldown or depressurization in the steam generators whose atmospheric relief valves had to be manually closed.</br>The NRC Resident Inspector has been notified.</br>* * * UPDATE PROVIDED BY LICENSEE (FIELDS) TO NRC (HELD) ON 4/9/05 ON 1901 * * *</br>AFW Actuation - due to FW (Feedwater) Isol(ation) tripping both MFPs (Main Feed Pumps) (trips start AFW)</br>AFW includes 2 motor-driven and 1 turbine-driven pump.</br>R2DO (Rogers) notified.rbine-driven pump.
R2DO (Rogers) notified. +
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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>.
02:21:18, 2 March 2018 +
13:20:00, 9 April 2005 +
true +
-0.0771 d (-1.85 hours, -0.011 weeks, -0.00253 months) +
15:11:00, 9 April 2005 +
Automatic Reactor Trip on Turbine Trip Due to Low Auto Stop Oil Pressure on Pressure Switches +
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