发电机注入式转子一点接地故障分析

Analysis of One Point Grounding Fault of Generator Injected Rotor

转子接地保护是水轮机组继电保护的重要组成部分,转子接地保护装置的正常运行对机组稳定运行起着非常重要的作用。本文分析了双端注入式原理测量转子绝缘电阻时,影响转子绝缘降低的可能性原因,对转子绝缘降低故障查找具有一定的参考指导意义。

rotor ground protection is an important part of relay protection of hydraulic turbine unit. The normal operation of the rotor grounding protection device plays a very important role in the stable operation of the unit. This paper analyzes the reason of the influence of the rotor insulation resistance when measuring the rotor insulation resistance, and it has certain reference significance for the rotor insulation reduction and fault finding.