Effect of Soil Moisture on Arc Discharge in Sandy Soils Under Lightning Struck

被引：3
作者：
Zhang, Bo [1 ]
Wang, Sen [2 ]
Wu, Jinpeng [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
[2] Shaanxi Elect Power Res Inst, Xian 710048, Peoples R China
来源：
IEEE LETTERS ON ELECTROMAGNETIC COMPATIBILITY PRACTICE AND APPLICATIONS | 2020年 / 2卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Lightning; grounding; discharge; humidity; soil; ELECTRICAL BREAKDOWN; MODEL;
D O I：
10.1109/LEMCPA.2020.3035072
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Onset electric field of arc discharge in soil is one of the basic parameters to analyze the lightning impulse performance of a grounding device. In this letter, a grounding rod is placed on the axis of a cylinder filled with sand, and an impulse current is applied between the grounding rod and the cylinder to simulate the electric field around the grounding rod under lightning strike. The transient current and potential are measured simultaneously with which, the onset electric field of arc discharge in sandy soils with different humidity and the time of discharge delay is obtained. Then, the effect and mechanism of the soil moisture on the arc discharge is discussed.
引用
收藏
页码：111 / 114
页数：4
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