[1]程养春,李日东,李光茂.110 kV氧化锌避雷器泄漏电流带电检测结果统计分析[J].电瓷避雷器,2020,(02):64-71,80.[doi:10.16188/j.isa.1003-8337.2020.02.011]
 CHENG Yangchun,LI Ridong,LI Guangmao.Statistical Analysis for On-Line Detection Results of 110 kV ZnO Arrester Leakage Current[J].,2020,(02):64-71,80.[doi:10.16188/j.isa.1003-8337.2020.02.011]
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110 kV氧化锌避雷器泄漏电流带电检测结果统计分析()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年02期
页码:
64-71,80
栏目:
避雷器
出版日期:
2020-04-25

文章信息/Info

Title:
Statistical Analysis for On-Line Detection Results of 110 kV ZnO Arrester Leakage Current
作者:
程养春1 李日东1 李光茂2
(1.新能源电力系统国家重点实验室(华北电力大学), 北京 102206; 2.广州供电局电力试验研究院, 广州 510410)
Author(s):
CHENG Yangchun1 LI Ridong1 LI Guangmao2
(1.State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(North China Electric Power University), Beijing 102206, China; 2. Test and Research Institute of Guangzhou Power Supply Bureau, Guangzhou 510410, China)
关键词:
氧化锌避雷器 带电检测 泄漏电流 统计分析
Keywords:
Zinc oxide surge arrester on-line detection leakage current statistical analysis
DOI:
10.16188/j.isa.1003-8337.2020.02.011
摘要:
氧化锌避雷器泄漏电流的带电检测是获取避雷器状态评估数据的重要方法,受避雷器生产厂家、型号、温度和湿度等因素的影响,泄漏电流的分布具有明显分散性,影响评价结果的准确性。统计分析了110 kV氧化锌避雷器全电流和阻性电流与环境温度(8~30 ℃)、湿度(45%~80%)和避雷器运行年限(0—20年)3种因素的关系,结果表明:全电流和阻性电流与这3种因素皆存在一定的线性正相关关系,并据此提出了现场检测数据的换算方法。换算至统一环境条件下的电流分布更加集中,在一定程度上减小了环境因素的影响,有助于提升氧化锌避雷器状态评估结果的准确性。
Abstract:
The on-line detection of the leakage current of the zinc oxide surge arrester is an important method to obtain the arrester status evaluation data. Affected by the arrester manufacturer, model, temperature and humidity, the distribution of the leakage current is significantly dispersive, and the dispersity will lower the accuracy of assessment results. The relationship between the full current and resistive current of 110 kV zinc oxide arrester and the ambient temperature(8~30 ℃), humidity(45%~80%)and the operating life of the arrester(0-20 years)was analyzed. The results show that there is a certain linear positive correlation between the full current or resistive current and the three external factors. At the same time, based on the relationship between current and environmental factors, the conversion method of on-site detection data was proposed. After being converted to the uniform environment conditions, the current distribution is more concentrated, which reduces the influence of environmental factors to some extent and helps to improve the accuracy of zinc oxide surge arrester status assessment results.

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备注/Memo

备注/Memo:
收稿日期:2018-06-13作者简介:程养春(1974—),男,教授,主要从事电气设备智能监测诊断和电气绝缘的研究工作。
更新日期/Last Update: 2020-04-25