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On 2/27/2007 at 2333 CST a Reactor Trip oc … On 2/27/2007 at 2333 CST a Reactor Trip occurred during performance of a surveillance procedure calibrating a Nuclear Power Range instrument. The Reactor trip resulted in an automatic Turbine Trip and actuation of the Auxiliary Feedwater System. No safeguards equipment was out of service at the time of the trip. Following the trip, a steam inlet valve on a Moisture Separator associated with the main turbine failed to close which resulted in RCS temperature decreasing to 537 degF. This valve was manually isolated and RCS temperature returned to normal 547 degF. Normal heat sink to the Main Condenser was available during the event. Investigation is continuing into the exact cause of the Reactor trip.</br>This event is being reported under 10CFR50.72(b)(2)(iv)(B) for actuation of the Reactor Protection System and 10CFR50.72(b)(3)(iv)(A) for actuation of the Auxiliary Feedwater System.</br>All control rods fully inserted on the reactor trip. Decay heat is being removed by Auxiliary Feedwater feeding the steam generators, steaming to the main condenser.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
05:33:00, 28 February 2007 +
43,196 +
02:04:00, 28 February 2007 +
05:33:00, 28 February 2007 +
On 2/27/2007 at 2333 CST a Reactor Trip oc … On 2/27/2007 at 2333 CST a Reactor Trip occurred during performance of a surveillance procedure calibrating a Nuclear Power Range instrument. The Reactor trip resulted in an automatic Turbine Trip and actuation of the Auxiliary Feedwater System. No safeguards equipment was out of service at the time of the trip. Following the trip, a steam inlet valve on a Moisture Separator associated with the main turbine failed to close which resulted in RCS temperature decreasing to 537 degF. This valve was manually isolated and RCS temperature returned to normal 547 degF. Normal heat sink to the Main Condenser was available during the event. Investigation is continuing into the exact cause of the Reactor trip.</br>This event is being reported under 10CFR50.72(b)(2)(iv)(B) for actuation of the Reactor Protection System and 10CFR50.72(b)(3)(iv)(A) for actuation of the Auxiliary Feedwater System.</br>All control rods fully inserted on the reactor trip. Decay heat is being removed by Auxiliary Feedwater feeding the steam generators, steaming to the main condenser.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
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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>.
02:17:09, 2 March 2018 +
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-0.145 d (-3.48 hours, -0.0207 weeks, -0.00477 months) +
05:33:00, 28 February 2007 +
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