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On January 21, 2010, at 1820 hours, Salem … On January 21, 2010, at 1820 hours, Salem Unit 2 had an Automatic Reactor Trip due to low steam generator (SG) water level in the 22 SG. Prior to the reactor trip, the 21 SG feedwater pump tripped due to low oil pressure. A turbine runback was in progress and SG levels failed to recover. (Also at the time of the reactor trip), the 22 SG feedwater pump tripped on overspeed.</br>All rods fully inserted on the trip and all systems responded as designed with decay heat being removed via the Steam Dump system, with condenser vacuum maintained. All three AFW Pumps auto started due to low Steam Generator level. Following the trip, the 22 Reactor Coolant Pump (RCP) flange vibration level spiked to approximately 9 mils and returned to a normal value of 2.6 mils. 22 RCP remained in service following the trip. The 21RS12 low pressure turbine intercept valve failed to indicate closed following the turbine trip but was locally verified closed.</br>Salem Unit 2 is currently in mode 3. The Reactor Coolant System temperature is 547 degrees F with pressure at 2235 psig (NOT and NOP). All ECCS and ESF Systems are available and no ECCS systems actuated during the event. No personnel injuries occurred as a result of the trip.</br>There is no primary to secondary leakage. The electrical shutdown configuration is normal. There was no impact on Unit-1.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
23:20:00, 21 January 2010 +
45,647 +
21:36:00, 21 January 2010 +
23:20:00, 21 January 2010 +
On January 21, 2010, at 1820 hours, Salem … On January 21, 2010, at 1820 hours, Salem Unit 2 had an Automatic Reactor Trip due to low steam generator (SG) water level in the 22 SG. Prior to the reactor trip, the 21 SG feedwater pump tripped due to low oil pressure. A turbine runback was in progress and SG levels failed to recover. (Also at the time of the reactor trip), the 22 SG feedwater pump tripped on overspeed.</br>All rods fully inserted on the trip and all systems responded as designed with decay heat being removed via the Steam Dump system, with condenser vacuum maintained. All three AFW Pumps auto started due to low Steam Generator level. Following the trip, the 22 Reactor Coolant Pump (RCP) flange vibration level spiked to approximately 9 mils and returned to a normal value of 2.6 mils. 22 RCP remained in service following the trip. The 21RS12 low pressure turbine intercept valve failed to indicate closed following the turbine trip but was locally verified closed.</br>Salem Unit 2 is currently in mode 3. The Reactor Coolant System temperature is 547 degrees F with pressure at 2235 psig (NOT and NOP). All ECCS and ESF Systems are available and no ECCS systems actuated during the event. No personnel injuries occurred as a result of the trip.</br>There is no primary to secondary leakage. The electrical shutdown configuration is normal. There was no impact on Unit-1.</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>.
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