4 novembre 2012
Le réacteur a été automatiquement mis à l’arrêt d’urgence suite à un problème sur la turbine principale. L’origine du problème est en cours de recherche.
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Les barres de contrôles sont bien introduites et les circuits d’injection haute pression ont été mis en route. L’isolement du coeur du réacteur s’est effectué correctement
Facility : FITZPATRICK - Region : 1 State : NY Unit : [1] - Type : [1] GE-4
Event Date : 11/04/2012 - Event Time : 21:53
Emergency Class : NON EMERGENCY
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current
RX Mode 1 A/R Y 100 Power Operation 0 Hot Shutdown
Event Text
AUTOMATIC REACTOR SCRAM FROM FULL POWER FOLLOWING TURBINE TRIP
"The reactor was scrammed on a valid reactor protection system activation caused by a main turbine trip. The cause of the main turbine trip is under investigation. All control rods fully inserted. All isolations and initiations occurred as designed. High Pressure Coolant Injection (HPCI) and Reactor Core Isolation Cooling (RCIC) initiated as expected. RCIC injected into the reactor coolant system, HPCI did not, as expected."
This scram was characterized as uncomplicated and the reactor is stable in Mode 3. The plant is in a normal post shutdown electrical lineup. All systems functioned as required.
The NRC Resident Inspector has been notified.
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2012/20121105en.html
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