中国电力2018，Vol.51Issue(4)：39-44,95,7.DOI:10.11930/j.issn.1004-9649.201708146
某地区配电线路防雷现状分析及防雷装置研究
Study on Lighting Protection Situation and Device of 10 kV Distribution Lines
摘要
Abstract
Lightning-caused line break became more and more serious with application of 10 kV Insulation-covered distribution lines. According to statistic, 49% of lightning stroke tripping happen on distribution lines. It is necessary to develop lighting protection device to reduce lightning-caused break probability and improve power supply reliability. By taking typical 10 kV distribution lines as example, the situation and tripping scenarios are analyzed in detail. An arrester with two cascade gaps are adopted and improved. The spherical electrode and main gap parameters are determined by experiments. The volt-second characteristic of lightning impulse and current cut-down ability are also tested. The lighting protection ability of arrester with two cascade gaps are both verified by engineering application.关键词
10kV配电线路/雷击断线/双间隙型氧化锌避雷器/防雷装置Key words
10 kV distribution lines/lightning-caused break/arrester with two cascade gaps/lightning device分类
信息技术与安全科学引用本文复制引用
秦如意,刘宗良,陈洲,徐重酉,吴军..某地区配电线路防雷现状分析及防雷装置研究[J].中国电力,2018,51(4):39-44,95,7.基金项目
国网浙江电力科技项目(基于线路风险的配电网立体防雷技术体系研究).This work is supported by Zhangjiang Power Science and Technology Project of SGCC. （基于线路风险的配电网立体防雷技术体系研究）
