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This non-emergency 4-hour and 8-hour repor … This non-emergency 4-hour and 8-hour report is pursuant to 10CFR50.72(b)(2) and 10CFR50.72(b)(3). On 7/10/05 at 0318 hours, Unit 2 experienced a turbine trip and subsequent reactor scram. An RPS actuation occurred, as expected, following the turbine trip. RPS responded normally and reactor power is 0%. Reactor water level went below 1 inch, as expected, following a reactor scram from 100% power. At a reactor level of less than 1 inch, PCIS Group 2 and 3 isolations occurred. Reactor water level has been restored above 1 inch to the normal level using the normal reactor feedwater system. All safety systems responded as designed.</br>An investigation is in progress to determine the cause of the turbine trip and to initiate appropriate corrective actions.</br>During the scram the RCS experienced a high pressure condition which caused both recirculation pumps to trip and 3 SRVs to lift and reseat. The licensee is presently depressurizing primary system in order to restart one of the recirculation pumps. Current RCS parameters: Pressure - 320 psig; Temperature - 428 F; and Level - +23 inches. All rods fully inserted.</br>Prior to the turbine trip the licensee was conducting a routine weekly "Mechanical Trip Valve Test.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
07:18:00, 10 July 2005 +
41,832 +
06:42:00, 10 July 2005 +
07:18:00, 10 July 2005 +
This non-emergency 4-hour and 8-hour repor … This non-emergency 4-hour and 8-hour report is pursuant to 10CFR50.72(b)(2) and 10CFR50.72(b)(3). On 7/10/05 at 0318 hours, Unit 2 experienced a turbine trip and subsequent reactor scram. An RPS actuation occurred, as expected, following the turbine trip. RPS responded normally and reactor power is 0%. Reactor water level went below 1 inch, as expected, following a reactor scram from 100% power. At a reactor level of less than 1 inch, PCIS Group 2 and 3 isolations occurred. Reactor water level has been restored above 1 inch to the normal level using the normal reactor feedwater system. All safety systems responded as designed.</br>An investigation is in progress to determine the cause of the turbine trip and to initiate appropriate corrective actions.</br>During the scram the RCS experienced a high pressure condition which caused both recirculation pumps to trip and 3 SRVs to lift and reseat. The licensee is presently depressurizing primary system in order to restart one of the recirculation pumps. Current RCS parameters: Pressure - 320 psig; Temperature - 428 F; and Level - +23 inches. All rods fully inserted.</br>Prior to the turbine trip the licensee was conducting a routine weekly "Mechanical Trip Valve Test.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
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