发电机转子接地故障分析及处理Generator Rotor Ground Fault Analysis and Treatment
杨联联,张岩
YANG Lian-lian1, ZHANG Yan2 (1. Huazhe Coal & Power Co.
摘要(Abstract):
通过一起发电机转子一点接地保护装置频繁告警故障的分析查找,分析了可能导致保护装置动作的各种情况,通过逐一排查,最终发现和消除了故障产生的原因,并总结得出查找此类故障的步骤和建议,可供应用同类保护装置的发电机组参考。
This paper analyzes various reasons for frequent fault alarms of single-point grounding protection device of generator rotor through the analysis and examination and the causes of faults are found and eliminated eventually after investigation. It sums up the procedures and suggestions as for detecting faults of its kind to offer a reference for generating units with same type of protection devices.
关键词(KeyWords):
转子绕组;接地保护;接地刷辫;软连接
rotor winding; grounding protection; brush cord; soft connection
基金项目(Foundation):
作者(Author):
杨联联,张岩
YANG Lian-lian1, ZHANG Yan2 (1. Huazhe Coal & Power Co.
DOI: 10.19585/j.zjdl.2010.08.011