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REACTOR TRIP DUE TO TURBINE TRIP CAUSED BY STEAM GENERATOR LEVEL "HI-HI" SIGNAL

The plant was operated at rated power. One of position indicators of Main Feedwater Control Valves (MFCV) had a trouble and MFCV maintained at fully open position. Main feed flowrate increased and caused steam generator level "hi-hi" level signal. This signal caused turbine trip and reactor trip.

Location: KORI-2
Event date: Sun, 25-09-1994
Nuclear event report
Legenda & explanation