水电厂发电机组定子绕组单点接地故障排查及处理方法的研究  

Research on Single-point Grounding Fault Investigation and Treatment Method of Stator Winding of Generator Set in Hydro-power Plant

作　　者：陈汉强 Chen Hanqiang

机构地区：[1]英德市白石窑水电投资有限责任公司

出　　处：《变频器世界》2024年第6期104-106,共3页The World of Inverters

摘　　要：针对水轮发电机组定子线圈发生接地故障,又没有明显的故障点,在无法通过现场勘查发现故障部位时,通过电流加热法能快速发现故障点并及时处理,为定子接地故障查找方法提供一种非常有效的技术手段。同时采用甩开一根故障线圈方法,能快速恢复发电。In view of the grounding fault of the stator coil of the hydro-generator set,and there is no obvious fault point,when the fault part cannot be found through on-site investigation,the fault point can be quickly found and dealt with in time by the current heating method,which provides a very effective technical means for the stator grounding fault finding method.At the same time,the method of throwing off a faulty coil can quickly restore power generation.

关 键 词：接地故障 定子线棒 绝缘电阻 电流加热法 

分 类 号：TM622[电气工程—电力系统及自动化]