减小220kV金属氧化物锌避雷器直流泄漏电流测量偏差的方法  

A Method for Reducing the Measurement Deviation of 220 kV MOA DC Leakage Current

作　　者：丁常松 

机构地区：[1]马鞍山供电公司,安徽马鞍山243000

出　　处：《电瓷避雷器》2014年第2期115-118,共4页Insulators and Surge Arresters

摘　　要：对220 kV输电线路用金属氧化物避雷器直流泄漏试验数据偏大原因分析后,发现高压引线输出端对地杂散电流、被试品高压端对地杂散电流、表面泄漏电流等对测量结果有很大的影响。通过理论分析寻找解决问题的对策,用现场试验验证的方法,得出改进型试验接线方法是科学可行的。具体阐述了避雷器泄漏电流试验时如何减少影响因素,测量出准确试验数据,为同行在遇到类似问题时提供借鉴。Through the analysis on the reasons of the DC leakage test data are relatively large for in MOA the 220 kV transmission lines, it is found that stray current of high voltage test, surface leakage the stray current of high voltage lead output end, current have great influence on the measurement resuhs. Through theoretical analysis and find solutions to the problem, by using method of field testing, the improved test wiring method which is scientific and feasible is obtained. It is expounded that how to reduce the influence factors in case of the arrester leakage current test, obtain the accurate experimental data, and provide the reference to the peer for similar problems.

关 键 词：金属氧化物避雷器 直流泄漏试验 试验接线 

分 类 号：TM862.1[电气工程—高电压与绝缘技术] TM934.31