接地网导体缺陷诊断方法的分析与研究  

Analysis and Research of Conductor Defect Diagnostic Method in Grounding Grid

作　　者：陈宇燕[1] 郭平[2] 杨波[1] 陈明华 CHEN Yuyan;GUO Ping;YANG Bo;CHEN Minghua(Guangxi Electrical Polytechnic Institute,Nanning,Guangxi,530007;Guangxi Vocational College of Water Resources and Electric Power,Nanning,Guangxi,530023;China Energy Engineering Group Guangxi Electric Power Design Institute Co.,Ltd.,Nanning,Guangxi,530007)

机构地区：[1]广西电力职业技术学院,广西南宁530007 [2]广西水利电力职业技术学院,广西南宁530023 [3]中国能源建设集团广西电力设计研究院有限公司,广西南宁530007

出　　处：《红水河》2021年第4期89-91,96,共4页Hongshui River

基　　金：2021年度广西高校中青年教师基础能力提升项目(2021KY1313)。

摘　　要：接地网是保障入侵变电站的短路电流正常流散的重要设施,然而,长期埋设在土壤中的接地网导体在各种物理和化学因素的影响下会发生腐蚀甚至断裂,影响变电站及接地网的正常运行,因此,需要采用有效的方法对接地网导体的缺陷加以诊断。笔者阐述了当前接地网导体缺陷诊断的3种方法,应用CDEGS软件建立接地网缺陷诊断仿真模型并进行仿真计算和分析,总结出3种诊断方法的特点和适用性,为接地网导体缺陷诊断提供理论依据。The grounding grid is an important facility to ensure the normal flow of short-circuit current invaded into the substation.However,the grounding grid conductor buried in the soil for a long time will be corroded or even fractured under the influence of various physical and chemical factors,which affects the normal operation of the substation and the grounding grid.Therefore,it is necessary to adopt effective methods to diagnose the defects of the grounding grid conductor.In this paper,three methods of conductor defect diagnosis of grounding grid are expounded,and the simulation model of conductor defect diagnosis of grounding grid is established by CDECS software,and the simulation calculation and analysis are carried out.The characteristics and applicability of the three diagnostic methods are summarized,which provides theoretical basis for conductor defect diagnosis of grounding grid.

关 键 词：变电站 接地网 缺陷 诊断方法 导体 

分 类 号：TM207[一般工业技术—材料科学与工程]