Transient Behavior of Common Grounding Grids to Artificially Triggered Lightning
Transient Behavior of Common Grounding Grids to Artificially Triggered Lightning
复制标题
普通接地网对人为触发雷电的暂态行为
DOI：
10.1109/temc.2018.2829928
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发表时间：
2019-04
影响因子：
2.1
通讯作者：
Wei Wenfu
中科院分区：
文献类型：
--
作者：
Guo Zaihua;Wu Guangning;Chen Shaodong;Zhang Yijun;Wei Wenfu
对专门布置的远程公共接地网在触发雷电流作用下的电位和分布电流进行了测量和分析。尽管测得的电位和分布电流波形不同，但电位峰值与注入雷电流呈线性关系。在M分量过程中，测得的电位和分布电流的波形与注入电流相似，但公共接地网电位可能会增加到5 kV以上。在回程过程中，接地电位的平均峰值为40 kV，且半峰宽度比注入电流更宽，经常损坏连接到接地网的电涌保护器。发现两个过程中的分布电流平均处于几千安培的低水平。分布电流与注入电流之比与注入电流成正比。而且，与能量耗散相比，分布电流的幅值衰减更快；后者主要是由于半峰宽度变宽。由此可见，浪涌电流的高峰值和长持续时间在防雷方面具有同等的风险。
Electrical potential and distributed current of a specifically arranged remote common grounding grid subjected to triggered lightning currents were measured and analyzed. Although the measured waveforms of potential and distributed current were different, the peak of this potential displayed a linear relationship with the injected lightning currents. In the M-component process, waveforms of the measured potential and distributed current were similar to the injected current, but the common grounding grid potential may increase to as high as more than 5 kV. In the return-stroke process, the grounding potential had an average peak of 40 kV and a wider half-peak width compared to the injected current, which frequently damaged the surge protective devices connected to the grounding grids. The distributed current was found to be at an average low level of several kiloamperes in both processes. The ratio of distributed current to the injected current is proportional to the injected current. Moreover, the attenuation in amplitudes of distributed current is faster compared to the energy dissipation; the latter was primarily due to the widened half-peak width. It, thus, indicates the equal risks of both high peak and long duration of the surge currents in terms of the lightning protection.
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影响因子：
4.4
作者：
A. Mousa
通讯作者：
A. Mousa
影响因子：
2.1
作者：
S. Visacro;G. Rosado
通讯作者：
S. Visacro;G. Rosado
影响因子：
4.4
作者：
Yaqing Liu;N. Theethayi;R. Thottappillil
通讯作者：
Yaqing Liu;N. Theethayi;R. Thottappillil
DOI：
10.1109/sipda.2011.6088421
发表时间：
2011-12
期刊：
2011 International Symposium on Lightning Protection
影响因子：
--
作者：
J. Birkl;C. Barbosa
通讯作者：
J. Birkl;C. Barbosa
影响因子：
4.4
作者：
M.A.F. Mattos
通讯作者：
M.A.F. Mattos