Observation and Characteristic Analysis of Ground Potential Rise in the Common Ground Network

GUO Zaihua; ZHU Liang; CHEN Shaodong; ZHANG Yijun; Lü Weitao; YAN Xu

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Observation and Characteristic Analysis of Ground Potential Rise in the Common Ground Network

更新时间：2025-12-08

- Observation and Characteristic Analysis of Ground Potential Rise in the Common Ground Network
- Vol. 42, Issue 11, Pages: 3488-3494(2016)
- 作者机构：
  
  1. 成都信息工程大学电子工程学院
  2. 西南交通大学电气工程学院
  3. 中国气象局广州热带海洋气象研究所
  4. 中国气象科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：20 November 2016，
  
  Published：2016
- 稿件说明：
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GUO Zaihua, ZHU Liang, CHEN Shaodong, et al. Observation and Characteristic Analysis of Ground Potential Rise in the Common Ground Network[J]. 2016, 42(11): 3488-3494.
DOI：

GUO Zaihua, ZHU Liang, CHEN Shaodong, et al. Observation and Characteristic Analysis of Ground Potential Rise in the Common Ground Network[J]. 2016, 42(11): 3488-3494. DOI：

摘要

地电位反击造成设备的损坏和人员生命安全是非常值得关注的问题。基于人工触发闪电

布置了共用地网的试验模型

通过引流杆注入真实雷电流

测量了共用接地情况下接地体的地电位升高电压

并对比分析了闪电回击和M分量放电过程引起地电位升高电压的波形特征。结果表明:获得触发闪电（T201514）7次回击和16次M分量上升沿10%

0%时间分别为0.4μs和279.7μs

半峰宽度的平均值分别为14.8μs和434.7μs。地电位升高电压波形的上升陡度和半峰宽度相对于回击都更大

将电压波形上升陡度和半峰宽度分别与电流波形的参数相比得到比值为14.0和2.7。M分量电压和电流波形相似

电压波形和电流波形对应参数的比值分别为0.8和1.1。触发闪电回击和M分量峰值的平均值分别为–19.1 k A和–1.3 k A

回击以及M分量的峰值和引起的地电位升高电压峰值有很好的线性拟合关系。将电压峰值和电流峰值相比得到等效接地电阻

雷电流的等效接地电阻明显小于回击。

Abstract

The equipment damages and life safety caused by counterattack of ground potential rise（GPR） are worthy of attention. Based on the experiment of artificial triggered lightning

the test model of common ground network is laid out. During experiments

the lightning current is injected into the model from the drainage rod and the GPR is measured. For comparison

different characteristics of GPR caused by return stroke and M-component are analyzed. It is summarized that the average time of 10%

0% rising edge of the trigged lightning（T201514）’s 7 return strokes and 16 M-components is 0.4 μs and 279.7 μs

respectively

and the average time of the half peak width is 14.8 μs and 434.7 μs

respectively. The average time of 10%

0% rising edge and the half peak width of GPR waves compared with the return strokes are larger

and the parameters of return strokes the proportion coefficients are 14.0 and 2.7

respectively. However

for M-components

the parameters between voltage and currents are similar and the corresponding proportion coefficients of them are 0.8 and 1.1

respectively. The peak value of the triggered lightning’s 7 return strokes and 16 M-components are –19.1 k A and –1.3k A

respectively

and they fit well with the voltages. The equivalent impulse earthed resistance can be got by dividing the peak voltage by peak current

the equivalent resistances of return strokes are obviously smaller than those of M-components.

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Related Institution

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