ENS 47745: Difference between revisions

v t e ENS Event
00:34 Mar 15, 2012
Title	Hpci Inoperable Due to Failure of Turbine Governor Valve
Event Description	On March 14th, 2012 at 2034 EST the High Pressure Coolant Injection System (HPCI) was declared inoperable due to a failure of the turbine governor valve to respond as expected to demanded position. With the HPCI system flow controller output signal at zero percent demand the governor valve traveled to the mid position and did not remain closed as expected when the oil system auxiliary pump was started. With this unexpected response the speed and flow control system for the turbine is inoperable. The failure was discovered as part of a planned evolution for oil sampling. All other Emergency Core Cooling Systems and the Reactor Core Isolation Cooling (RCIC) system remain operable. The unit remains at 100% power. The station has initiated an Event Response Team to identify and correct the cause of the failure. No personnel injuries resulted from the event. The NRC Resident Inspector and Lower Alloway Creek Township will be notified.

ENS 47745 +/-
Where
Hope Creek New Jersey (NRC Region 1)
Reporting

10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Time - Person (Reporting Time:+3.63 h0.151 days <br />0.0216 weeks <br />0.00497 months <br />)
Opened:	Kenneth Breslin 04:12 Mar 15, 2012
NRC Officer:	Charles Teal
Last Updated:	Mar 15, 2012
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v • d • e

v t e Emergency Notification System
Hope Creek with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2023-04-30T05:00:00 [Table view]
[ENS list for Hope Creek]

@@ Line 16: / Line 16: @@
 | event date = 03/14/2012 20:34 EDT
 | last update date = 03/15/2012
-| title = Hpci Inoperable Due To Failure Of Turbine Governor Valve
+| title = Hpci Inoperable Due to Failure of Turbine Governor Valve
 | event text = On March 14th, 2012 at 2034 EST the High Pressure Coolant Injection System (HPCI) was declared inoperable due to a failure of the turbine governor valve to respond as expected to demanded position.  With the HPCI system flow controller output signal at zero percent demand the governor valve traveled to the mid position and did not remain closed as expected when the oil system auxiliary pump was started.  With this unexpected response the speed and flow control system for the turbine is inoperable.  The failure was discovered as part of a planned evolution for oil sampling.
 All other Emergency Core Cooling Systems and the Reactor Core Isolation Cooling (RCIC) system remain operable.

Latest revision as of 22:04, 1 March 2018