架空输电线路接地装置的优化设计  

An Optimal Design Method of Grounding Device for Overhead Transmission Lines

作　　者：尹志强 杨程 杨利伟 YIN Zhiqiang;YANG Cheng;YANG Liwei(China Gezhouba Group Electric Power Co.,Ltd.,Hubei Yichang 443000,China;Guangxi Boyang Electric Power Survey&Design Co.,Ltd.,Guangxi Nanning 530022,China;Power Grid Planning Research Center of Guangxi Power Grid Co.,Ltd.,Guangxi Nanning 530023,China)

机构地区：[1]中国葛洲坝集团电力有限责任公司,湖北宜昌443000 [2]广西博阳电力勘察设计有限公司,广西南宁530022 [3]广西电网有限责任公司电网规划研究中心,广西南宁530023

出　　处：《广西电力》2020年第6期58-61,80,共5页Guangxi Electric Power

摘　　要：接地装置设计的合理性对输电线路的正常运行至关重要。受气候、土壤环境复杂性影响,输电线路接地装置设计容易出现接地电阻不达标或材料用量过度浪费等问题。为此,提出了一种接地装置优化设计方法,该方法考虑了基础自然接地和人工接地的共同降阻作用,并且人工接地采用可逐级扩展的布置方案。应用结果表明,所提出的设计方法可在满足接地要求的前提下最大限度节省接地材料用量,具有良好的经济效益。The design rationality of grounding device is crucial to the normal operation of transmission lines.Affected by the complexity of the climate and soil environment,the design of the grounding device of the transmission line is prone to problems such as the substandard grounding resistance or the excessive waste of materials.For this reason,a grounding device optimization design method,which takes into account the joint resistance reduction effect of the natural grounding and the artificial grounding and adopts the layout scheme that can be expanded step by step for the artificial grounding,is proposed.Application results show that the proposed design method can save the amount of grounding materials to the greatest extent while meeting grounding requirements,and has good economic benefits.

关 键 词：接地装置 自然接地体 人工接地体 接地电阻 

分 类 号：TM862[电气工程—高电压与绝缘技术]