Frequent alarm for high generator stator temperature in a hydropower station;the connecting bolt of the induced draft fan falls off,causing damage to the generator stator;the stator core is loosened,protruded and cuts the winding bar,and the core is partially burned;brake jam,air leakage and blow-by and other defects threatening the safe operation of hydraulic turbine generator unit.A series of solutions are proposed to solve the above problems completely and ensure the safe operation of the hydraulic turbine generator unit.
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