宁夏电力Issue(z1)：34-37,4.DOI:10.3969/j.issn.1672-3643.2023.S1.007
多柱并联避雷器直流参数测量方法
Measurement method of DC parameters of multi-column parallel lightning arrester
摘要
Abstract
Aiming at the problem that the multi-column parallel arrester requires a large capacity of the test instrument to measure the leakage current under 1 mA DC reference voltage U1 mA and 0.75 times U1 mA,and there was an uncertain floating potential between the high-voltage flanges of the arrester during the measurement process,the test method of multi-column parallel arrester without removing the arrester body was carried out.The resistance divider method was proposed to reduce the differential pressure between the high-voltage flanges of the arrester and the output capacity of the DC high-voltage generator.The feasibility of measuring the DC parameters of multi-column parallel arresters by resistance divider method was demonstrated from three aspects:the potential difference of the high-voltage end flange of the arrester,the required test current and the measurement accuracy,which provide theoretical support and measurement guidance for the routine test of multi-column parallel arrester.关键词
氧化锌避雷器/绝缘电阻/高压引线Key words
zinc oxide arrester/insulation resistance/high voltage lead分类
信息技术与安全科学引用本文复制引用
贾晓瑜,李连众,刘晓飞..多柱并联避雷器直流参数测量方法[J].宁夏电力,2023,(z1):34-37,4.基金项目
国网河北省电力有限公司科技项目(kj2022-036) （kj2022-036）
