16 février 2018
L’arrêt se serait effectué sans problème. L’alimentation en eau auxiliaire s’est enclenchée comme prévu. L’évacuation de la chaleur résiduelle est réalisée par l’intermédiaire des générateurs de vapeur vers le condenseur principal. Aucune radioactivité n’aurait été relâchée.
Type : PWR : Puissance : 3 216 MWth - Première divergence : 4 / 1976 -
Available in english only
Event Number : 53216
Facility : INDIAN POINT - Region : 1 State : NY Unit : [3] - RX Type : [3] W-4-LP
Event Date : 02/16/2018 Event Time : 02:01 [EST]
Emergency Class : NON EMERGENCY 10 CFR Section : 50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Initial PWR : 100 % Current PWR : 0 %
Event Text
AUTOMATIC TRIP DUE TO LOSS OF EXCITATION ON MAIN GENERATOR
"On February 16, 2018 at 02:01 EST Indian Point Unit 3 automatically tripped on a turbine trip due to a loss of main generator excitation. All control rods fully inserted and all plant equipment responded normally to the unit trip. This is reportable under 10 CFR 50.72(b)(2)(iv)(B).
"The auxiliary feedwater system actuated following the automatic trip as expected. This is reportable under 10 CFR 50.72(b)(3)(iv)(A). During the event offsite power remained available and stable. No primary or secondary reliefs lifted. The plant is stable, in Mode 3, at no load operating temperature and pressure. Decay heat removal is via the steam generators to the main condenser via the condenser steam dumps. No radiation was released.
"Indian Point Unit 2 was unaffected by this event and remains at 100 percent power.
"A post trip investigation is in progress.
"The licensee has notified the NRC Resident Inspector."
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2018/20180216en.html
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