| 一次触发闪电引起的独立地网转移电位特征分析 |
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| 引用本文： | 曹雪芬,陈绍东,梁红玉,高文俊,李和捷,蔡占文. 一次触发闪电引起的独立地网转移电位特征分析[J]. 中国电力, 2021, 54(3): 117-124. DOI: 10.11930/j.issn.1004-9649.202007068 |
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| 作者姓名： | 曹雪芬 陈绍东 梁红玉 高文俊 李和捷 蔡占文 |
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| 作者单位： | 1. 广东省气象公共安全技术支持中心，广东 广州 510080;2. 中国气象局广州热带海洋气象研究所，广东 广州 510080;3. 广州市气象公共服务中心，广东 广州 511430 |
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| 基金项目： | 国家重点研发计划资助项目(雷击全过程破坏效应及防护试验研究,2017YFC1501506);国家自然科学基金资助项目(基于闪电放电特征的氧化锌SPD损害机理试验研究,41775007) |
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| 摘 要： | 基于人工触发闪电T179的10次回击过程,分析了雷电流作用下2个独立地网的相互作用及转移地电位特征,并通过冲击低压电源浪涌保护器(SPD),计算和评估了转移地电位冲击SPD的能量.结果发现,地网隔离40 m距离产生的转移电位(TGP)电压峰值比较大,平均值可达–10.9 kV.TGP电压峰值与触发闪电电流峰值之间呈现非...
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| 关 键 词： | 人工触发闪电 独立地网 转移地电位 SPD残压 接地线电流 |
| 收稿时间： | 2020-07-20 |
| 修稿时间： | 2020-08-26 |
Transferred Ground Potential Characteristics of Independent Ground Networks Caused by One Artificially Triggered Lightning |
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| CAO Xuefen,CHEN Shaodong,LIANG Hongyu,GAO Wenjun,LI Hejie,CAI Zhanwen. Transferred Ground Potential Characteristics of Independent Ground Networks Caused by One Artificially Triggered Lightning[J]. Electric Power, 2021, 54(3): 117-124. DOI: 10.11930/j.issn.1004-9649.202007068 |
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| Authors: | CAO Xuefen CHEN Shaodong LIANG Hongyu GAO Wenjun LI Hejie CAI Zhanwen |
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| Affiliation: | 1. Guangdong Technical Support Center of Meteorological Public Security, Guangzhou 510080, China;2. Guangzhou Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou 510080, China;3. Guangzhou Meteorological Public Service Center, Guangzhou 511430, China |
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| Abstract: | Based on 10 return strokes of one artificially triggered lightning T179,the interaction of two independent ground networks and the characteristics of transferred ground potential(TGP)under the action of lightning current are analyzed,and the energy of SPD impacted by TGP is calculated and evaluated through the impulse low-voltage power surge protector(SPD).The results show that the generated peak TGP voltage at the ground network 40 m away is relatively large,reaching–10.9 kV on average.There is a very good positive correlation between the peak TGP voltage and the peak triggered lightning current with the correlation coefficient R2 reaching 0.97.The energy of impacting SPD is relatively small,with the average value of 10 return strokes being 1.5 J.It is therefore very safe to install SPD surge protector for electronic equipment. |
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| Keywords: | artificially triggered lightning independent ground grid transferred ground potential SPD residual voltage ground wire current |
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