220 kV GIS变电站接地网设计优化及评估  

Design Optimization and Evaluation of 220 kV GIS Substation Grounding Grid

作　　者：龚志辉 GONG Zhihui(Guangdong Nanhai Electric Power Design Institute Engineering Co.,Ltd.,Foshan 528000,China)

机构地区：[1]广东南海电力设计院工程有限公司,广东佛山528000

出　　处：《山东电力高等专科学校学报》2023年第2期1-4,共4页Journal of Shandong Electric Power College

摘　　要：针对某220 kV GIS变电站接地网提出了一种变电站接地网设计优化方法。首先根据勘测的土壤电阻率,反演出土壤分层情况,然后对斜井设计方案进行优化,调整斜井角度,最后对接地网安全性能进行评估。评估结果表明,该接地网方案满足规范要求,可保障变电站人身及设备安全,节省工程投资。A design optimization method of substation grounding grid is proposed for a 220 kV GIS substation grounding grid.Firstly,the soil stratification is deduced from the surveyed soil resistivity.Secondly the design scheme of the inclined shaft is optimized and the inclined shaft angle is adjusted.Finally,the safety performance of the grounding grid is evaluated.The evaluation results show that the grounding grid scheme meets the code requirements,which can ensure the safety of people and equipment in the substation,and save the project investment.

关 键 词：接地网设计 接地电阻 接地网电位 地网评估 

分 类 号：TM862[电气工程—高电压与绝缘技术]