Accident Analysis of 600 MW Hydrogen-Cooled Generator
At 22:45,February 18,2012 in H power plant,short circuit fault occurred in No.1 generator differential protection and generator interphase.Consequently,arc strikes were found in steam side stator bar 3,4,37,38,39 ;cross core screws were partialy melted at stator core slot 31-38; several generator rotor cooling blades were deformed.This paper analyzes the accident cause and process based on the inspection results and operation maintenance records.Finally,suggestions are provided for the accident repairment.
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