| 35kV熔断器防雷接地事故原因及防雷改造 |
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| 引用本文： | 扈海泽,曾水玲,孙乾方,梁冰,王林,方梦鸽,扈菲宇,莫异.35kV熔断器防雷接地事故原因及防雷改造[J].吉首大学学报(自然科学版),2019,40(5):25. |
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| 作者姓名： | 扈海泽 曾水玲 孙乾方 梁冰 王林 方梦鸽 扈菲宇 莫异 |
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| 作者单位： | 吉首大学信息科学与工程学院,湖南吉首,416000;国网郴州供电分公司,湖南郴州,423000;长沙理工大学电气与信息工程学院,湖南长沙,410000 |
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| 基金项目： | 湖南省教育厅重点科研项目（17A173）；湖南省教育厅一般科研项目（18C0565）；吉首大学科研项目（JD17007，JDX1703）；吉首大学大学生创新性项目（9520113）；湖南省信息类专业校企合作创新创业教育基地项目（2017JSUJD032） |
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| 摘 要： | 对某35 kV变电站雷电导致熔断器炸裂事故进行了分析，提出了增设避雷针、更换接地体、接地体与主接地网并接，以及并联安装保护间隙等防雷措施.采用电磁暂态仿真软件ATP-EMTP对接地电阻和保护间隙前后的防雷效果进行了仿真验证，实验结果表明，避雷器接地体与主接地网连接、熔断器并联安装保护间隙等措施能够有效地降低雷电过电压幅值.
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| 关 键 词： | 变电站 熔断器 主接地网 保护间隙 ATP-EMTP |
Analysis of Lightning Protection and Grounding Accident of 35 kV Fuse |
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| HU Haize,ZENG Shuiling,SUN Qianfang,LIANG Bing,WANG Lin,FANG Mengge,HU Feiyu,MO Yi.Analysis of Lightning Protection and Grounding Accident of 35 kV Fuse[J].Journal of Jishou University(Natural Science Edition),2019,40(5):25. |
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| Authors: | HU Haize ZENG Shuiling SUN Qianfang LIANG Bing WANG Lin FANG Mengge HU Feiyu MO Yi |
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| Institution: | (1. School of Information Science and Engineering, Jishou University, Jishou 416000, Hunan China; 2. State Grid Chengzhou Power Supply Company, Chengzhou 423000, Hunan China; 3. College of Science and Technology, Changsha University of Science & Technology, Changsha 410000, China) |
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| Abstract: | This paper analyzes the causes of fuse blowout caused by lightning in a 35 kV substation, and proposes lightning protection measures such as adding lightning rod, replacing the grounding body, connecting the grounding body with the main grounding grid, and installing protective gaps in parallel. At the same time, the electromagnetic transient simulation software ATP-EMTP is used to simulate the grounding resistance and the lightning protection effect before and after the protection gap. The simulation results show that connection of the grounding body of the arrester with the main grounding grid and the protective gap of the fuse can effectively reduced, the lightning overvoltage amplitude. |
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| Keywords: | substation fuse main grounding grid protection gap ATP-EMTP |
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