超高频与超声波法在GIS局部放电现场检测中的应用研究  

Application Research on On-line Detection of GIS Partial Discharge Based on Ultrahigh Frequency Method and Ultrasonic Method

作　　者：刘君华[1] 吴晓春[1] 徐敏骅[1] 

机构地区：[1]上海市电力公司超高压输变电公司,上海200063

出　　处：《华东电力》2011年第12期2096-2100,共5页East China Electric Power

摘　　要：局部放电检测作为一种有效的绝缘诊断技术在GIS现场安全维护中得到广泛的关注。通过分析局部放电检测超高频法与超声波法的技术特点,并在现场检测中进行应用研究,提出以超高频法为主,超声波法为辅,结合GIS设备部件结构特点进行局部放电现场检测分析的方法。现场应用情况表明,该方法能够有效处理GIS不同结构部件发生局部放电情况时的检测分析,为GIS设备绝缘诊断与检修策略的制定提供了有力支持。As an effective insulation diagnostic technique, Partial discharge （PD） detection has received broad attention in GIS online monitoring and maintenance. After the feature analysis of ultrahigh frequency （UHF） method and ultrasonic method, and the application research in PD on-line detection, a PD detection method is proposed. In the case of PD on-line detection, UHF method is taken as the main way and ultrasonic method as the supplementary way, combined with the analysis of GIS component construction. The field application experience also shows that this PD detection method can be used effectively for the PD occurances in different GIS components, providing an important and useful support for the GIS insulation diagnosis and the arrangement of device maintenance.

关 键 词：GIS 局部放电 在线检测 超高频 超声波 

分 类 号：TM83[电气工程—高电压与绝缘技术]