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Observed degrading condenser pressure. En … Observed degrading condenser pressure. Entered abnormal procedure DB-OP-02518, High Condenser Pressure and reduced reactor power. At <280 Mwe and > 5 inches Hg (mercury) A (absolute) , manually tripped the reactor at approximately 45% power in accordance with procedure. Normal post-trip response. Condenser pressure is slowly recovering. Still trying to determine the source of the condenser air in-leakage.</br>Notified Ottawa County Sheriff of main steam safety / atmospheric vent valve operation at 0231 hours per procedure.</br>All control rods fully inserted on the trip. Decay heat is being removed using the turbine bypass valves and the motor driven feed pump. There is no steam generator tube leakage. The atmospheric vent valves / main steam safety valves lifted for a few seconds following the trip and fully reseated after the initial lifting. Plant electrical power if from the grid backfeeding to the station. The electric grid is stable.</br>The NRC Resident Inspector was notified of this event by the licensee.ctor was notified of this event by the licensee. +
06:31:00, 6 September 2006 +
42,828 +
05:33:00, 6 September 2006 +
06:31:00, 6 September 2006 +
Observed degrading condenser pressure. En … Observed degrading condenser pressure. Entered abnormal procedure DB-OP-02518, High Condenser Pressure and reduced reactor power. At <280 Mwe and > 5 inches Hg (mercury) A (absolute) , manually tripped the reactor at approximately 45% power in accordance with procedure. Normal post-trip response. Condenser pressure is slowly recovering. Still trying to determine the source of the condenser air in-leakage.</br>Notified Ottawa County Sheriff of main steam safety / atmospheric vent valve operation at 0231 hours per procedure.</br>All control rods fully inserted on the trip. Decay heat is being removed using the turbine bypass valves and the motor driven feed pump. There is no steam generator tube leakage. The atmospheric vent valves / main steam safety valves lifted for a few seconds following the trip and fully reseated after the initial lifting. Plant electrical power if from the grid backfeeding to the station. The electric grid is stable.</br>The NRC Resident Inspector was notified of this event by the licensee.ctor was notified of this event by the licensee. +
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