INES 0 |
REACTOR SHUTDOWN DUE TO EXCESS HYDROGEN CONCENTRATION IN THE GENERATOR STATOR GAS TRAP |
The unit was shut down by protecitn on hydrogen content in the generator stator gas trap in excess of permissible values.
BASIS FOR RATING: Initiator - hydrogen leakage.
Criterion - degradation of defence-in-depth.
Initial event - expected, real. Safety function availability: full, which corresponds to level 0/1 (A-1R).
DIFFICULTIES IN RATING:
Event date: Wed, 13-02-1991