变压器套管末屏对现场局部放电测量影响的实例与分析  

Case Analysis of the Influences of Bushing Tap on On-site PD Test for Transformers

作　　者：沈煜[1] 罗维[1] 

机构地区：[1]湖北省电力试验研究院,武汉湖北430077

出　　处：《高压电器》2009年第3期157-159,共3页High Voltage Apparatus

摘　　要：介绍了使用变频电源进行现场局部放电测量的基本方法,总结了现场试验中的干扰类型及排除措施,结合2次现场测量实例,介绍了干扰排除过程及思路,分析了套管末屏接地不良对现场局部放电测量的影响,总结了此类影响的特点及处理方法。该方法对变压器现场试验。This paper introduces the on-site PD testing method by using variable frequency power, analyzes the interferences on test result, and summarizes the ways for suppressing the interferences. Through two on-site PD tests, the procedure of suppressing the interferences is introduced. Moreover, the influences of bushing tap with imperfect earth on on-site PD test of transformers are analyzed, and a method to suppress these interferences is suggested.

关 键 词：电力变压器 局部放电 套管末屏 

分 类 号：TM406[电气工程—电器]