一起500kV变电站避雷器异常发热分析  

Analysis of Abnormal Heating of a 500 kV Substation Arrester

作　　者：谭超 陈上豪 Tan Chao;Chen Shanghao(Zhejiang Institute of Communications,Hangzhou,China;State Grid Zhejiang Electric Power Co.,Ltd.Ultra High Voltage Branch,Hangzhou,China)

机构地区：[1]浙江交通职业技术学院,浙江杭州 [2]国网浙江省电力有限公司超高压分公司,浙江杭州

出　　处：《科学技术创新》2024年第22期81-84,共4页Scientific and Technological Innovation

摘　　要：在电力系统中,避雷器是保护设备免受雷电过电压和操作过电压损害的重要设备。其中,500 kV变电站所使用的无间隙金属氧化物避雷器在运行过程中出现异常发热现象,严重影响了设备的正常运行和电网的安全。本文通过对一起500 kV变电站无间隙金属氧化物避雷器异常发热的案例分析,探讨了发热的原因,并提出了相应的处理措施和防范策略。In power system,the arrester is an important equipment to protect equipment from lightning overvoltage and operating overvoltage damage.Among them,the gapless metal oxide arrester used in 500 kV substation has abnormal heating phenomenon during operation,which seriously affects the normal operation of the equipment and the safety of the power grid.Based on this,a case of abnormal heating of metal oxide arrester in 500 kV substation is analyzed.The cause of heating is discussed,and the corresponding treatment measures and prevention strategies are put forward in his paper.

关 键 词：500 kV变电站 无间隙金属氧化物避雷器 异常发热 带电检测 

分 类 号：TM862[电气工程—高电压与绝缘技术] TM63