大型汽轮发电机定子接地故障点分析  

Analysis on the Stator Grounding Fault Point of Large-size Turbine Generators

作　　者：李胜帅 陈涛 周青 LI Shengshuai;CHEN Tao;ZHOU Qing(Shanghai Electric Power Generation Equipment Co.,Ltd.Generator Plant,200240)

机构地区：[1]上海电气电站设备有限公司发电机厂,200240

出　　处：《电机技术》2023年第5期42-45,60,共5页Electrical Machinery Technology

摘　　要：定子接地故障是发电机的常见故障,属于较为严重的故障类型,影响机组的安全运行。文章介绍了定子接地故障点的排查方法,通过对发电机在故障发生时出现的异常现象及运行参数的变化情况进行分析,缩小了故障区域的排查范围,从而缩短了排查周期。Stator grounding fault is a common fault in the generators,in which it belongs to the more serious type of faults and affects the safe operation of the unit.The article introduces the investigation method of stator grounding fault point,analysis on the abnormal phenomena and changes of operating parameters of the generator when the fault occurring,thus,the investigation scope of the fault area is scaled down,shortening the investigation period.

关 键 词：定子接地 故障录波图 故障点 

分 类 号：TM307[电气工程—电机]