一起800 kV耦合电容器介损测试的影响因素及对策分析  

Analysis of Influencing Factors and Countermeasures of Dielectric Loss Test for 800 kV Coupling Capacitor

作　　者：包艳艳 刘康 温定筠 陈博栋 江峰 高立超 BAO Yanyan;LIU Kang;WEN Dingjun;CHEN Bodong;JIANG Feng;GAO Lichao(State Grid Gansu Electric Power Research Institute,Lanzhou 730070,China)

机构地区：[1]国网甘肃省电力公司电力科学研究院,甘肃兰州730070

出　　处：《电工技术》2021年第6期125-126,128,共3页Electric Engineering

摘　　要：特高压现场试验中,耦合电容器的介质损耗因数均在10 kV及以下电压下进行测试的,但设备自身存在Garton效应,某些时候所测的异常数据不能真实反映设备绝缘状态。针对特高压换流站800 kV耦合电容器的介质损耗因数测试数据异常,从设备的结构、使用条件及测试方法等进行了异常原因的详细分析,给出了应对设备Garton效应的现场实施策略及设备运行建议。In the UHV field test,the dielectric loss factor of the coupling capacitor is tested at a voltage of 10 kV and below.However,the device itself has the Garton effect,and the abnormal data measured at some times cannot truly reflect the insulation state of the device.Aiming at the abnormal dielectric loss factor test data of 800 kV coupling capacitor in UHV converter station,a detailed analysis of the cause of the abnormality is carried out from the structure,use conditions and test methods of the equipment.The on-site implementation strategies and equipment operation suggestions for the Garton effect of equipment are given.

关 键 词：耦合电容器 GARTON效应 介质损耗因数 对策分析 

分 类 号：TM53[电气工程—电器]