局部放电检测法在高压变频机组绝缘检测中的应用  

Partial Discharge Detection Method Application in Insulation Detection of High Voltage Inverter Motor Unit

作　　者：唐玉龙 孙丽华 TANG Yulong;SUN Lihua(Zhengzhou Gas Transmission Branch of West-East Gas Transmission Company of State Pipeline Network,Zhengzhou 450000,Henan,China;Liuzhou Electric Power Survey and Design Co.,Ltd.,Liuzhou 545000,Guangxi,China)

机构地区：[1]国家管网集团西气东输公司郑州输气分公司,河南郑州450000 [2]柳州电力勘察设计有限公司,广西柳州545000

出　　处：《电气传动》2021年第19期77-80,共4页Electric Drive

摘　　要：通过对直流叠加法、温度测量法、接地线电流法、局部放电检测法等几种常见的电气绝缘在线检测方法的研究和分析,阐述了各种检测方法的原理、检测方式、适用范围、优缺点。重点对局部放电检测法在高压变频机组的应用进行了实验分析。局部放电检测技术具有与检测装置无电气连接、检测灵敏度高、安装简便的优越性,可实现便携式检测,是高压变频机组绝缘检测的最佳方案。Several on-line detection methods of electrical insulation,such as DC superposition method,distributed optical fiber temperature measurement method,grounding current method and partial discharge detection method,were studied and analyzed.The principle,detection mode,application range,advantages and disadvantages of various detection methods were introduced.The emphasis was put on the experimental analysis of the partial discharge detection method application for high voltage inverter motor unit.The partial discharge detection technology has the advantages of no electrical connection with the detection device,high detection sensitivity,simple installation and portable detection,it is the best scheme for insulation detection of high voltage inverter motor unit.

关 键 词：高压变频机组 局部放电检测技术 超高频法 高频脉冲电流法 

分 类 号：TM921[电气工程—电力电子与电力传动]