Effects of Potential Difference within Large Grounding Grid on Secondary Cables Due to Lightning Strike

被引：0
|
作者：
Meng, Yongchang [1 ]
Zhang, Bo [1 ]
Wang, Sen [2 ]
Li, Zhizhong [2 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Beijing, Peoples R China
[2] Shaanxi Elect Power Res Inst, Xian, Shaanxi, Peoples R China
来源：
2017 IEEE 5TH INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC-BEIJING) | 2017年
关键词：
grounding; potential difference; lightning; secondary cable; induced voltage; SYSTEMS;
D O I：
暂无
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：
When substations suffer from lightning, the potential difference occurs within the grounding grid, which will generate induced voltage between the core, shield and the armor of the two-end grounded cables and significantly affect the secondary system in substation. This paper analyses the potential difference within large grounding grid and its influence on the secondary cables through the field test. The induced voltage in cable was measured and analyzed. The usage of drain wires was studied.
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页数：4
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