| 10kV架空线路雷击断线故障的模拟试验研究 |
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| 引用本文： | 沈海滨,陈维江,王颂虞,贺子鸣,陈艳霞.10kV架空线路雷击断线故障的模拟试验研究[J].电网技术,2011(1):117-121. |
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| 作者姓名： | 沈海滨 陈维江 王颂虞 贺子鸣 陈艳霞 |
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| 作者单位： | 中国电力科学研究院;国家电网公司;北京电力公司;北京电力试验研究院; |
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| 摘 要： | 近年来,我国配电网架空线路雷击断线故障时有发生,严重干扰了电网的运行安全,了解雷击断线产生的机制是解决上述问题的关键。已有的研究成果主要集中在定性理论分析上,缺少试验论证。在实验室中模拟了架空线路遭受雷击后对地放电和工频续流起弧燃烧2个过程,重点研究了10 kV系统典型短路故障条件下工频续流电弧烧损导线的情况。研究结果揭示了续流电弧弧根能否自由移动是裸导线耐弧能力强而绝缘导线耐弧能力弱的根本原因,试验验证了工频续流起弧后绝缘导线必断线而裸导线断线概率极低,为架空线路雷击断线防护提供了指导,即绝缘导线有必要采取防雷击断线保护措施而裸导线并非必要。
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| 关 键 词： | 绝缘导线 裸导线 雷击断线 雷电放电 续流电弧 |
Simulation Tests on Lightning Stroke-Caused Wire-Breakage of 10 kV Overhead Transmission Line |
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| SHEN Haibin,CHEN Weijiang,WANG Songyu,HE Ziming,CHEN Yanxia.Simulation Tests on Lightning Stroke-Caused Wire-Breakage of 10 kV Overhead Transmission Line[J].Power System Technology,2011(1):117-121. |
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| Authors: | SHEN Haibin CHEN Weijiang WANG Songyu HE Ziming CHEN Yanxia |
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| Affiliation: | SHEN Haibin1,CHEN Weijiang2,WANG Songyu3,HE Ziming1,CHEN Yanxia4(1.China Electric Power Research Institute,Haidian District,Beijing 100192,China,2.State Grid Corporation of China,Xicheng District,Beijing 100031,3.Beijing Electric Power Corporation,4.Beijing Electric Power Test and Research Institute,Fengtai District,Beijing 102400,China) |
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| Abstract: | In recent years the lightning stroke-caused wire-breakage faults occasionally happen in overhead distribution lines in China and these faults seriously jeopardize the secure operation of power grid,so it is the key for the solution of this problem to make the mechanism leading to lightning stroke-caused wire-breakage clear.Existing research results pay attentions on qualitative theoretical analysis and the experimental verification is in absence.Two processes,i.e.,the line to earth discharge as well as arci... |
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| Keywords: | insulated conductor bare conductor lightning stroke-caused breakage lightning stroke discharge arc caused by sustaining current |
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