INES-event
INES 0

LOSS OF OFF-SITE POWER AND REACTOR SCRAM

Unit was operating at full power when a total loss of off-site power and reactor scram occurred due to the loss of a transformer. The loss of the transformer was due to an electrical failure of its associated current transformer. The event was complicated by the unanticipated loss of some non-safety related systems. However, all three emergency diesel generators started and assumed loads as required, and all safety equipment operated as designed. Off-site power, supplied through Unit 2, was restored to the emergency buses in about one hour. The plant was stabilized and cooled down in an orderly manner.

Location: LASALLE-1
Event date: Tue, 14-09-1993
Nuclear event report
Legenda & explanation