大型同步发电机转子匝间短路故障分析及诊断方法  

Analysis and Diagnosis Methods of Rotor Inter-turn Short Circuit Fault of Large Synchronous Generator

作　　者：苏振 SUZhen(Dongfang Electric Machinery Co.,Ltd.,618000, Deyang,Sichuan, China)

机构地区：[1]东方电气东方电机有限公司,四川德阳618000

出　　处：《东方电气评论》2017年第3期27-31,共5页Dongfang Electric Review

摘　　要：转子匝间短路是大型同步发电机常见故障之一,它将导致发电机励磁电流增大、阻抗变小、输出无功减小、振动值增大等各种异常现象,如不及时发现并加以消除,将会导致严重事故。本文结合工程实例,对电力行业通常使用的几种转子匝间短路故障诊断方法进行分析及评价,并对基于定子支路环流特征等新转子匝间短路故障监测理论进行简单介绍及分析。Turn to turn short circuit fault of rotor is one of the common faults of synchronous generator. It will increase the exciting current and rotor vibration, decrease the impedance and reactive power. If it is not found and repaired in time, serious troubles will be caused. Based on actual cases, this paper introduces and analyzes some diagnostic methods of inter-turn short circuit fault of rotor,including some new theories in this field.

关 键 词：同步发电机 转子匝间短路 诊断 探测线圈 RS0 

分 类 号：TM31[电气工程—电机]