复杂山地环境下变电站接地网的联合保护  

Research on substation grounding grid combined protection in complex mountain environment

作　　者：王浩屹 饶雪[1] 常湧[1] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072 [2]广州供电局有限公司,广东广州510000

出　　处：《武汉大学学报（工学版）》2016年第4期597-602,共6页Engineering Journal of Wuhan University

摘　　要：为解决复杂山地环境下,变电站接地网接地电阻不达标、金属腐蚀情况极为严重等问题,分析了复杂山地的土壤特性,研究了接地网在土壤中的腐蚀机理,提出了基于电化学的接地网联合方法.对高土壤电阻率山区环境下的接地网保护进行了方案设计,实例结果表明该方法有效解决了山区土壤分布不均的情况,较传统接地网防蚀保护方法具有明显的优势,保护效果高达70%.This paper intends to solve the nonstandard grounding resistance and the serious metallic corrosion of the substation grounding grid in complex mountainous environment.Soil properties of complex mountainous areas and corrosion mechanism have been analyzed.This paper puts forward a combined protection technology based on electrochemistry and designs the protection scheme of grounding grid in mountainous environment.It is demonstrated that this technology can effectively solve the uneven distribution of soil and has obvious advantages compared with the traditional protection methods.The protection effect has reached 70%.

关 键 词：接地网保护 土壤电阻率 阴极保护 联合保护 

分 类 号：TM207[一般工业技术—材料科学与工程]