500kV氧化锌避雷器直流泄漏电流超标原因分析  

Analysis on the Reason of Overproof of Direct Current Leakage Current 500kV Zinc Oxide Lightning Arrester

作　　者：侯素青 盖雅明 HOU Suqing;GE Yaming(Guohua Jungar Power-generation Limited Liability Company,Jungar,Inner Mongolia,010300)

机构地区：[1]国华准格尔发电有限责任公司

出　　处：《神华科技》2019年第5期42-44,共3页Shenhua Science and Technology

摘　　要：氧化锌避雷器直流泄漏电流试验是检验避雷器能否正常运行的重要手段,泄漏电流的超标可以反应出内部老化、绝缘故障等情况,严重者可能会导致避雷器击穿损坏等重大事故发生。本文介绍了影响氧化锌避雷器直流泄漏电流的因素,并分析避雷器直流泄漏电流超标的原因,针对实际情况提出如何提高国华准格尔发电有限责任公司避雷器直流泄露电流测试数据的准确性。The direct current leakage current test of the zinc oxide lightning arrester is an important means to check whether the lightning arrester can operate normally. The overproof of the leakage current can reflect the internal aging,insulation failure,etc.,and it may leads to severe accident such as breakdown and damage of the lightning arrester,etc if it becomes more serious. This paper introduces the factors that affect the DC leakage current of the zinc oxide lightning arrester,and analyzes the reason why the DC leakage current of the lightning arrester exceeds the standard,and puts forward how to improve the accuracy of the DC leakage current test data of the lightning arrester in our plant.

关 键 词：氧化锌避雷器 直流泄漏电流 超标 

分 类 号：TM862[电气工程—高电压与绝缘技术]