一起汽轮发电机转子匝间绝缘恶化的监测、诊断与处理  

Monitoring,diagnosis and treatment of interturn insulation deterioration of a turbo-generator rotor

作　　者：金泱 黄捷 庞雷 王新 王展宏 钱坤 JIN Yang;HUANG Jie;PANG Lei;WANG Xin;WANG Zhanhong;QIAN Kun(Zhejiang Energy Group R&D,Hangzhou 311121,China;Zhejiang Provincial Key Laboratory of Energy Conservation&Pollutant Control Technology for Thermal Power Hangzhou 311121,China;Zhejiang Energy Yueqing Power Generation Co.LTD,Wenzhou 3256091,China)

机构地区：[1]浙江浙能技术研究院有限公司,浙江杭州311121 [2]浙江省火力发电高效节能与污染物控制技术研究重点实验室,浙江杭州311121 [3]浙江浙能乐清发电有限责任公司,浙江温州325609

出　　处：《能源工程》2022年第6期57-61,共5页Energy Engineering

摘　　要：重复脉冲法相较于线圈电压法和极间电压法具有更高的灵敏度。通过跟踪一起发电机转子匝间绝缘逐渐恶化直至金属性短路的实例,对比了RSO法、极间电压法和线圈电压法的检测结果,论证了RSO法在检测转子非金属性匝间短路中的有效性。此外,通过分析该转子历年RSO试验检测结果,证明了定期进行RSO试验能够有效监测转子匝间绝缘的发展趋势。RSO has higher sensitivity than the coil voltage method and interpole voltage method.In this paper,by tracking an example of generator rotor interturn insulation deterioration until the insulation is metallic short circuit and comparing the detection results of RSO,interpole voltage method and coil voltage method,the effectiveness of RSO in detecting non-metallic interturn shortcircuit of rotor have been demonstrated.In addition,by analyzing the rotor’s test results of RSO over the years,it is proved that regular RSO test can effectively monitor the development trend of interturn insulation of rotor.

关 键 词：重复脉冲法 匝间短路 转子 绝缘监测 

分 类 号：TM311[电气工程—电机]