ENS 43318: Difference between revisions

v t e ENS Event
15:01 Apr 25, 2007
Title	Loss of Offsite Power While Defueled
Event Description	While the offsite grid operator was performing electrical switching in the switchyard, Millstone 3 experienced a complete loss of offsite power. The "A" emergency diesel generator started and supplied power to the protected vital train electrical buses. Power to Spent Fuel Pool Cooling, Service Water, and Component Cooling Water was restored. Spent Fuel Pool level was not affected. No radiation was released from the plant. Offsite power was restored to the site at approximately 11:50. The NRC did not escalate response mode for this event. The licensee notified the NRC Resident Inspector. * * UPDATE AT 1430 ON 4/25/2007 FROM AL ELMS TO MARK ABRAMOVITZ * * * The Unusual Event was terminated at 14:27. The electrical lineup has been restored to the shutdown electrical lineup. The licensee notified the NRC Resident Inspector. Notified FEMA (Dwight Fuller), DHS SWO (John Frost), NRR EO (M.J. Ross-Lee), R1DO (Trapp), R2DO (Payne), R3DO (Passehl), R4DO (Smith), and IRD (Cruz).

ENS 43318 +/-
Where
Millstone Connecticut (NRC Region 1)
Reporting
Emergency class:	Unusual Event
10 CFR 50.72(a) (1) (i), Emergency Class Declaration
Time - Person (Reporting Time:+-3.42 h-0.143 days <br />-0.0204 weeks <br />-0.00468 months <br />)
Opened:	Al Elms 11:36 Apr 25, 2007
NRC Officer:	Mark Abramovitz
Last Updated:	Apr 25, 2007
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v • d • e

v t e Emergency Notification System
Millstone with 10 CFR 50.72(a)(1)(i), Emergency Class Declaration
WEEKMONTHYEAR2020-11-08T13:29:00 [Table view]
[ENS list for Millstone]

@@ Line 16: / Line 16: @@
 | event date = 04/25/2007 11:01 EDT
 | last update date = 04/25/2007
-| title = Loss Of Offsite Power While Defueled
+| title = Loss of Offsite Power While Defueled
 | event text = While the offsite grid operator was performing electrical switching in the switchyard, Millstone 3 experienced a complete loss of offsite power.  The "A" emergency diesel generator started and supplied power to the protected vital train electrical buses.  Power to Spent Fuel Pool Cooling, Service Water, and Component Cooling Water was restored.  Spent Fuel Pool level was not affected.  No radiation was released from the plant.  Offsite power was restored to the site at approximately 11:50.  The NRC did not escalate response mode for this event.
 The licensee notified the NRC Resident Inspector.

Latest revision as of 21:16, 1 March 2018