电机技术
電機技術
전궤기술
ELECTRICAL MACHINERY TECHNOLOGY
2013年
1期
57-61
,共5页
发电机%定子铁心%松动%断齿%绝缘损伤%故障处理
髮電機%定子鐵心%鬆動%斷齒%絕緣損傷%故障處理
발전궤%정자철심%송동%단치%절연손상%고장처리
Generator%Stator core%Loose Teeth br-eaking%Insulation deterioration%Failure handling
介绍了连州发电厂3、4号发电机定子铁心端部阶梯齿断齿以及端部线棒受损的情况.分析了故障现象后,确定定子故障原因主要是由于铁心端部松动、铁心硅钢片表面受损等隐患引起的.针对起因对定子铁心进行了断齿修复和紧固,对受损线棒进行了更换和修理,跟踪各发电机修复后运行状况,结果良好.
介紹瞭連州髮電廠3、4號髮電機定子鐵心耑部階梯齒斷齒以及耑部線棒受損的情況.分析瞭故障現象後,確定定子故障原因主要是由于鐵心耑部鬆動、鐵心硅鋼片錶麵受損等隱患引起的.針對起因對定子鐵心進行瞭斷齒脩複和緊固,對受損線棒進行瞭更換和脩理,跟蹤各髮電機脩複後運行狀況,結果良好.
개소료련주발전엄3、4호발전궤정자철심단부계제치단치이급단부선봉수손적정황.분석료고장현상후,학정정자고장원인주요시유우철심단부송동、철심규강편표면수손등은환인기적.침대기인대정자철심진행료단치수복화긴고,대수손선봉진행료경환화수리,근종각발전궤수복후운행상황,결과량호.
Both the broken of the ladder-shaped teeth and damage of the coil bar of the stator happened in the No.3 and 4 generators in the Lianzhou power plant were introduced. After analyzing the failure phenomenon, the cause of the failure resulted from such hidden factors as the core-loosing and insulation layer damage on the surface of silicon steel sheet was confirmed. The Teeth-broken in the ladder-shaped teeth in the stator was repaired, core-loosing was retightened and damaged coil bar was replaced punctu-ally against the cause. It was found that the repaired genera-tor operated normally after long-term following up.
