凌霜寒,黄立军,米贤才,吴进
LING Shuanghai,HUANG Lijun,MI Xiancai,WU Jin

• 1:苏州热工研究院有限公司

摘要(Abstract)：

针对发电机转子匝间短路故障的检测方法众多,但大多不够灵敏,无法实现轻微匝间短路故障的检测。介绍一种方便快捷、灵敏度高的匝间短路检测技术—RSO试验方法,说明了其基本工作原理及优点,对某660 MW火电机组在交流阻抗试验初步判断转子存在匝间绝缘缺陷的情况下,利用RSO试验方法成功实现了故障诊断及定位,并通过内窥镜检查验证了判断结果。
The detection methods for inter-turn short circuit fault of generator rotor are various, but most of them are not sensitive enough to detect small inter-turn short circuit faults. The paper introduces a convenient and sensitive method for inter-turn short circuit faults detection, namely the RSO technique, and it also introduces the operating principle and advantages. In an electrochemical impedance spectroscopy(EIS) test of 660 MW thermal power generating units, it is preliminarily determined that there is inter-turn insulation fault in the rotor; by using RSO test method, the fault is diagnosed and located, and the diagnosis result is verified through endoscope examination.

关键词(KeyWords)： 转子绕组;匝间短路;RSO试验方法;故障诊断
rotor winding;inter-turn short circuit;RSO technique;fault diagnosis

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 凌霜寒,黄立军,米贤才,吴进
LING Shuanghai,HUANG Lijun,MI Xiancai,WU Jin

DOI: 10.19585/j.zjdl.2016.08.009

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