某350MW汽轮发电机转子不稳定高阻接地故障查找方法及原因分析  

Search method and analysis of causes of turbo-generator rotor unstable high resistance ground fault

作　　者：单银忠 杨璐[2] 金红[3] 

机构地区：[1]国电科学技术研究院,江苏南京210031 [2]华北电力大学,河北保定071003 [3]河北省电力勘测设计研究院,河北石家庄050031

出　　处：《电力科技与环保》2013年第5期52-54,共3页Electric Power Technology and Environmental Protection

摘　　要：介绍了某电厂350MW汽轮发电机转子绕组不稳定高阻多点接地故障的查找方法,接地故障的原因分析,为保证修复质量,除了按预试规程要求进行试验外,结合现场实际提出了"测量转子两极阻抗电压"对比的方法。The search method and the analysis of causes of rotor windings unstable high resistance multi - point ground fault of a 350 MW turbo - generator in a power plant was describd. To ensure the repairment quality, in addition to regular tests conducted as required by pre - voltages of two poles of rotor windings is proposed on trial procedures,the way of measuring the impedance the basis of the actual situation.

关 键 词：汽轮发电机 转子绕组 不稳定高阻多点接地故障 

分 类 号：TM311[电气工程—电机]