直流泄漏电流测量中存在的问题分析

Analysis of Problems Existed in Direct Current Leakage Current Measurement

介绍了直流泄漏电流测量中存在的各种问题及其对直流泄漏电流产生的影响。以金属氧化物避雷器(MOA)直流泄漏电流测量为例,分析了现场测量中电压值的选取、微安表位置的设置、试验电压测量等常见问题及测试结果失真的原因,并提出了测量过程中的一些注意事项,以促使测量水平的进一步提高。

Introduction was made to various kinds of problems existed in direct current leakage current measurement and its impacts on direct current leakage current. Taking the metal oxide arrester （MOA） for example, this paper analyzed the selection of voltage measurement value on site, positional setting of microammeter, measurement of testing voltage etc common problems, and the reasons of testing result dis- tortion, presenting several cautions to make the level of measurement improved further.