Repetitive pulse method is used to test a generator of a gas-steam combined cycle unit,which determines that an inter-turn insulation defect exists in the generator rotor due to partial oil and gas adhering to the side of end coils and the inter-turn insulation surface and the reduced inter-turn insulation caused by high temperature carbonization so that the rotor is returned for factory inspection.The inter-turn insulation is replaced,and the elastic support,slot insulation,windings and other components are repaired and maintained,which effectively solves the insulation defect and ensures the reliability and safety of the unit operation.
关键词
燃气-蒸汽联合循环机组/发电机转子/匝间短路/重复脉冲法
Key words
gas-steam combined cycle unit/generator rotor/inter-turn short circuit/repetitive pulse method
维普
万方数据