| 10kV配电线路雷害事故分析及防雷措施仿真研究 |
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| 引用本文： | 陈洁,姜建勋.10kV配电线路雷害事故分析及防雷措施仿真研究[J].电瓷避雷器,2011(4):73-77. |
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| 作者姓名： | 陈洁 姜建勋 |
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| 作者单位： | 长沙电力职业技术学院,长沙,410131 |
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| 摘 要： | 根据某地10 kV配电线路的雷害情况和典型事例,分析了10 kV配电线路跳闸的原因。结合相关理论计算分析后得出:感应雷过电压是造成10 kV配电线路跳闸的主要原因,对均高15 m的架空配电线路,若雷击点距此线路65 m,雷电流幅值为100 kA,感应雷过电压可以达到576.9 kV。结果表明:更换线路绝缘子、适当加装线路避雷器、并联保护间隙和安装自动跟踪补偿消弧装置可以有效提高10kV配电线路的耐雷水平,降低线路雷击跳闸率。
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| 关 键 词： | 配电线路 感应雷过电压 防雷措施 耐雷水平 |
Analysis of Lightning-strike Fault of 10 kV Distribution Lines and Simulation Study on Lightning Protection Measures |
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| CHEN Jie,JIANG Jian-xun.Analysis of Lightning-strike Fault of 10 kV Distribution Lines and Simulation Study on Lightning Protection Measures[J].Insulators and Surge Arresters,2011(4):73-77. |
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| Authors: | CHEN Jie JIANG Jian-xun |
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| Affiliation: | CHEN Jie,JIANG Jian-xun(Changsha Electricity Vocational and Technical College,Changsha 410131,China) |
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| Abstract: | According to the actual cases of lightning damage and representative accidents in the operation of 10 kV distribution line,the 10 kV distribution line trip reasons are analyzed.Combined with relevant theories,it is indicated that the induced overvoltage is the main cause of 10 kV distribution line tripping.For the 15 m pole,if the lightning location is 65 m from the distribution line and the lightning current amplitude is 100 kA,the induced overvoltage will reach 576.9 kV.The result shows that: replacing th... |
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| Keywords: | distribution line induced overvoltage lightning protection measures lightning protection level |
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