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At 0238, Point Beach Unit 1, classified aAt 0238, Point Beach Unit 1, classified an Unusual Event based on CU3.1, loss of power to or from the 1X-04 transformer that results in a loss of all offsite power to both safety-related busses 1A-05 and 1A-06 for greater than 15 minutes and at least one emergency (diesel) generator is supplying power to an emergency bus.</br>The 1X-04 transformer converts 345 kV to 13.8 kV. Both Emergency Diesel Generators are running supplying the safety-related busses.</br>The licensee notified State and local agencies and the NRC Resident Inspector.</br>* * * UPDATE FROM KARL COSSEY TO JOHN KNOKE AT 0843 EST ON 11/27/11 * * *</br>Off-site power to Unit 1A-05 and 1A-06 Safeguards Busses has been restored via Unit 2 2X-03 High Voltage Station Transformer and 1X-04 Low Voltage Station Transformer.</br>During the transient, all four Emergency Diesel Generators (EDGs) started as expected with G-01 EDG supplying the Unit 1 1A-05 Safeguards Bus and G-03 EDG supplying 1A-06 Safeguards Bus. Off-site power to the Unit 2 Safeguards Buses was not affected. The start of the EDGs is also reportable under 10CFR 50.72 (b)(3)(iv)(A).</br>All systems responded as designed during the transient and operators performed in accordance with procedures and their training. Unit 1 is stable in Mode 5 within normal operating bands. Unit 2 remains operating at 100% power. The Unusual Event was terminated at 0700 (CST) on November 27, 2011. A press release is planned.</br>The licensee has notified State and local agencies and the NRC Resident Inspector. Notified R3DO (Julio Lara), IRD MOC (Jane Marshall), NRR EO (Sher Bahadur), DHS (Rickerson), and FEMA (Hollis).adur), DHS (Rickerson), and FEMA (Hollis).  +
08:38:00, 27 November 2011  +
47,478  +
04:22:00, 27 November 2011  +
08:38:00, 27 November 2011  +
At 0238, Point Beach Unit 1, classified aAt 0238, Point Beach Unit 1, classified an Unusual Event based on CU3.1, loss of power to or from the 1X-04 transformer that results in a loss of all offsite power to both safety-related busses 1A-05 and 1A-06 for greater than 15 minutes and at least one emergency (diesel) generator is supplying power to an emergency bus.</br>The 1X-04 transformer converts 345 kV to 13.8 kV. Both Emergency Diesel Generators are running supplying the safety-related busses.</br>The licensee notified State and local agencies and the NRC Resident Inspector.</br>* * * UPDATE FROM KARL COSSEY TO JOHN KNOKE AT 0843 EST ON 11/27/11 * * *</br>Off-site power to Unit 1A-05 and 1A-06 Safeguards Busses has been restored via Unit 2 2X-03 High Voltage Station Transformer and 1X-04 Low Voltage Station Transformer.</br>During the transient, all four Emergency Diesel Generators (EDGs) started as expected with G-01 EDG supplying the Unit 1 1A-05 Safeguards Bus and G-03 EDG supplying 1A-06 Safeguards Bus. Off-site power to the Unit 2 Safeguards Buses was not affected. The start of the EDGs is also reportable under 10CFR 50.72 (b)(3)(iv)(A).</br>All systems responded as designed during the transient and operators performed in accordance with procedures and their training. Unit 1 is stable in Mode 5 within normal operating bands. Unit 2 remains operating at 100% power. The Unusual Event was terminated at 0700 (CST) on November 27, 2011. A press release is planned.</br>The licensee has notified State and local agencies and the NRC Resident Inspector. Notified R3DO (Julio Lara), IRD MOC (Jane Marshall), NRR EO (Sher Bahadur), DHS (Rickerson), and FEMA (Hollis).adur), DHS (Rickerson), and FEMA (Hollis).  +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
00:00:00, 27 November 2011  +
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>.
02:05:24, 2 March 2018  +
04:22:00, 27 November 2011  +
false  +
false  +
-0.178 d (-4.27 hours, -0.0254 weeks, -0.00585 months)  +
1X-04 +, 1A-05 +, 1A-06 +  and 2X-03 +
08:38:00, 27 November 2011  +
Unusual Event Due to a Loss of Offsite Power During Switching Operations  +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.
1  +