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At 1132 CST on 2/6/13, Point Beach Unit 1 … At 1132 CST on 2/6/13, Point Beach Unit 1 experienced a loss of all offsite power due to the loss of 1X-03 High Voltage Station Aux Transformer. The high side circuit switcher opened. However, the 1X-03 transformer did not lock out resulting in G-01 and G-03 Emergency Diesels energizing the 1A-05 and 1A-06 4160 VAC busses (safety related).</br>The cause of the loss of offsite power is being investigated. In order to exit the event, the plant requires either 345 kV power to be restored or cross-tie plant power between the units. If cross-tied, Technical Specifications require the gas turbine to be placed on the cross-tie within 24 hours. The plant remained at 100% power and there was no effect on Unit 2.</br>The licensee notified the NRC Resident Inspector. </br>Notified the DHS SWO, FEMA, DHS NICC, and the Nuclear SSA (via e-mail).</br>* * * UPDATE AT 1500 ON 2/6/2013 FROM JAMIE WEIGANDT TO MARK ABRAMOVITZ * * *</br>There were specified system actuations with the original event. Emergency diesel generators (EDG) G-01, 2, 3, and 4 started on the undervoltage conditions with G-01 and G-03 loading onto their respective buses. 1P-53, motor driven aux feed pump started as designed on the EDG breaker closures. Offsite power has been restored to safeguards buses and the EDGs have been removed from the buses. Troubleshooting continues on the initial fault. All other systems functioned as designed. The unusual event has been terminated as of 1340 CST on 2/6/13.</br>The safeguards buses are being powered from Unit 2 through the electrical cross-tie.</br>The licensee notified the NRC Resident Inspector.</br>Notified the R3DO (Kunowsky), NRR EO (Evans), IRD (Marshall), DHS SWO, FEMA, DHS NICC, and the Nuclear SSA (via e-mail).HS NICC, and the Nuclear SSA (via e-mail). +
17:43:00, 6 February 2013 +
48,722 +
13:27:00, 6 February 2013 +
17:43:00, 6 February 2013 +
At 1132 CST on 2/6/13, Point Beach Unit 1 … At 1132 CST on 2/6/13, Point Beach Unit 1 experienced a loss of all offsite power due to the loss of 1X-03 High Voltage Station Aux Transformer. The high side circuit switcher opened. However, the 1X-03 transformer did not lock out resulting in G-01 and G-03 Emergency Diesels energizing the 1A-05 and 1A-06 4160 VAC busses (safety related).</br>The cause of the loss of offsite power is being investigated. In order to exit the event, the plant requires either 345 kV power to be restored or cross-tie plant power between the units. If cross-tied, Technical Specifications require the gas turbine to be placed on the cross-tie within 24 hours. The plant remained at 100% power and there was no effect on Unit 2.</br>The licensee notified the NRC Resident Inspector. </br>Notified the DHS SWO, FEMA, DHS NICC, and the Nuclear SSA (via e-mail).</br>* * * UPDATE AT 1500 ON 2/6/2013 FROM JAMIE WEIGANDT TO MARK ABRAMOVITZ * * *</br>There were specified system actuations with the original event. Emergency diesel generators (EDG) G-01, 2, 3, and 4 started on the undervoltage conditions with G-01 and G-03 loading onto their respective buses. 1P-53, motor driven aux feed pump started as designed on the EDG breaker closures. Offsite power has been restored to safeguards buses and the EDGs have been removed from the buses. Troubleshooting continues on the initial fault. All other systems functioned as designed. The unusual event has been terminated as of 1340 CST on 2/6/13.</br>The safeguards buses are being powered from Unit 2 through the electrical cross-tie.</br>The licensee notified the NRC Resident Inspector.</br>Notified the R3DO (Kunowsky), NRR EO (Evans), IRD (Marshall), DHS SWO, FEMA, DHS NICC, and the Nuclear SSA (via e-mail).HS NICC, and the Nuclear SSA (via e-mail). +
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100 +
00:00:00, 6 February 2013 +
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17:43:00, 6 February 2013 +
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