| 某矿区变电站进线段防雷改造措施及仿真分析 |
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| 引用本文： | 童年,周易龙,周利兵,陈锦麟,郭亦坚.某矿区变电站进线段防雷改造措施及仿真分析[J].工矿自动化,2014(4):105-110. |
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| 作者姓名： | 童年 周易龙 周利兵 陈锦麟 郭亦坚 |
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| 作者单位： | 长沙理工大学电气与信息工程学院; |
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| 摘 要： | 介绍了某矿区110kV变电站线路防雷措施的基本情况,分析了该变电站35kV进线段遭受雷击的原因,即线路绝缘水平遭人为提高后与站内绝缘水平等级不匹配和进线段杆塔接地电阻过高,并提出了相应的采用加装绝缘子保护间隙配合避雷器进行差异性保护和采用树枝状接地装置的改造措施。ATPEMTP仿真分析结果验证了改造措施的可行性。
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| 关 键 词： | 矿区变电站 雷击事故 保护间隙 差异性保护 树枝状接地装置 |
Lightning protection measures of inlet line of a mining area substation and its simulation analysis |
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| Abstract: | The paper introduced some basic situations of lightning protection measures of inlet line of a mining area 110kV substation,analyzed causes of lightning strike of 35kV inlet line of the substation, namely line insulation level increased by people is mismatch with on-site insulation level and inlet line tower grounding resistance is too high,and proposed corresponding renovation measures,namely adopting difference protection measures of installation of insulator protection gap with lightning arrester and dendritic grounding device.ATP-EMTP simulation results verify feasibility of the reform measures. |
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| Keywords: | mining area substation lightning accident protection gap difference protection dendritic grounding device |
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