文章基本信息

标题：Comparison of Grounding Grid Parameters Between Copper and Galvanized Flat Steel
本地全文：下载
作者：Yue Yu ; Yanjun Li ; Dehong Wang 等
期刊名称：E3S Web of Conferences
印刷版ISSN：2267-1242
电子版ISSN：2267-1242
出版年度：2021
卷号：267
页码：1-4
DOI：10.1051/e3sconf/202126702058
语种：English
出版社：EDP Sciences
摘要：In the intelligent substation, the shell of the secondary equipment is connected to the ground grid locally. When the short circuit fault current is injected into the grounding grid to cause the ground potential rise, the potential difference between the two points of the grounding grid will affect the normal operation of the secondary equipment. In this paper, aiming at the grounding grid of a 220kV substation, the grounding impedance, ground potential rise and ground potential difference between galvanized flat steel and copper grounding grid are calculated by using CDEGS software. The results show that the copper ground grid has a significant effect on reducing the potential difference of the ground grid.