干式空心电抗器周围电缆发热案例分析  

The Analysis of Cable Heating Case Around Dry-Type Air-Core Reactor

作　　者：肖迈 任旭超 陈昊 XIAO Mai;REN Xuchao;CHEN Hao(EHV Branch,State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing Jiangsu 211102,China;Dispatching Control Center,State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing Jiangsu 210000,China;Nanjing Power Supply Branch,State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing Jiangsu 210019,China)

机构地区：[1]国网江苏省电力有限公司超高压分公司,江苏南京211102 [2]国网江苏省电力有限公司电力调度控制中心,江苏南京210000 [3]国网江苏省电力有限公司南京供电分公司,江苏南京210019

出　　处：《湖北电力》2024年第4期35-41,共7页Hubei Electric Power

基　　金：国家自然科学基金项目(项目编号:62203248)。

摘　　要：介绍了干式空心电抗器及其周围磁场的影响,以及变电站内端子箱附近的二次电缆接地连接情况,结合现场发生的实际案例,讨论了其缺陷排查方法并分析了故障原因。最后针对干式空心电抗器周围二次电缆,从设计、施工工艺、验收和测温巡视等多个方面提出了举措建议,以期减少干式空心电抗器周围电缆发热问题的发生,保障电网安全。This paper first introduces the influence of dry-type air-core reactor and its surrounding magnetic field,and the ground connection of secondary cable near terminal box in substations,then combines with the actual case,and discusses the defect troubleshooting method and analyzes the fault cause.Finally,for the secondary cable around the dry-type air core reactor,the paper puts forward some suggestions from design,construction technology,acceptance and temperature inspection,so as to reduce the problem of cable heating around the dry-type air-core reactor and ensure the safety of the power grid.

关 键 词：干式空心电抗器 接地网 二次电缆 电缆发热 电缆铠装层 电缆屏蔽层 

分 类 号：TM645[电气工程—电力系统及自动化]