工业园区附近高压隔离开关触头发热问题分析  

Analysis on Heating Problem of High-Voltage Isolating Switch Contact near Industrial Area

作　　者：杨倩倩 吕雨桐[1] 王耀 王彪[1] 徐宇[1] 武占军 王威 YANG Qianqian;LYU Yutong;WANG Yao;WANG Biao;XU Yu;WU Zhanjun;WANG Wei(Inner Mongolia Power Research Institute,Hohhot 010020,China;Luoyang Advanced Manufacturing Industrial R&D Center,Tianjin Research Institute for Advanced Equipment,Tsinghua University,Luoyang 471003,China;Bayannur Electric Power Bureau,Bayannur 015000,China)

机构地区：[1]内蒙古电力科学研究院,呼和浩特010020 [2]清华大学天津高端装备研究院洛阳先进制造产业研发基地,河南洛阳471003 [3]巴彦淖尔电业局,内蒙古巴彦淖尔015000

出　　处：《内蒙古电力技术》2021年第2期16-19,24,共5页Inner Mongolia Electric Power

基　　金：国家自然科学基金项目“多因素复合运动条件下金基合金摩擦副导电特性研究”(U1730130);内蒙古电力(集团)有限责任公司科技项目“基于触头材料的隔离开关发热缺陷分析、控制技术与应用”(2019-53)。

摘　　要：针对内蒙古西部地区工业园区附近变电站隔离开关触头发热问题,进行实地调研,结合SEM、EDS和XRD分析方法对触头腐蚀表面进行检测,分析其发热原因。分析认为,触头基体材质、环境因素、开关结构等都会直接或间接导致接触电阻增大,造成开关发热。并从改善基体材质、优化隔离开关结构、采用新型涂层及日常维护等方面提出解决或缓解隔离开关发热问题的建议。This paper focuses on the heating problem of the isolating switch contact currently used in substations in the west of Inner Mongolia.A field investigation is conducted,advanced SEM,EDS and XRD analysis methods are combined to detect the surface of the contact,and the root cause of the heat is analyzed.The result shows that the contact base material,environmental factors,switch structure,etc.will directly or indirectly increase the contact resistance and cause the switch heating.Therefore,this paper proposes suggestions to solve or alleviate the heating problem of isolating switch from the aspects of improving the base material,optimizing the switch structure,adopting new coatings and routine maintenance.

关 键 词：高压隔离开关 触头发热 工业园区 接触电阻 

分 类 号：TM564.1[电气工程—电器]