变电站高压开关柜防凝露技术方案  

A technical scheme for condensation prevention of high voltage switchgear in substation

作　　者：顾晨 尤婷婷 刘明涛 承方 Gu Chen;You Tingting;Liu Mingtao;Cheng Fang(Yangzhou Power Supply Branch,Jiangsu Electric Power Co.,Ltd,Yangzhou,Jiangsu 225000;Jiangsu Power Design Institute Co.,Ltd of China Energy Engineering Group,Nanjing 211102;Wuxi Safee Electric Power Enviroment Control Equipment Co.,Ltd,Wuxi,Jiangsu 214500)

机构地区：[1]国网江苏省电力有限公司扬州供电分公司,江苏扬州225000 [2]中国能源建设集团江苏省电力设计院有限公司,南京211102 [3]无锡赛孚电力环境控制设备有限公司,江苏无锡214500

出　　处：《电气技术》2019年第11期97-100,120,共5页Electrical Engineering

摘　　要：柜内空气凝露是变电站开关柜运行中出现闪络故障的主要诱因。基于凝露形成的机理分析,本文提出了采用电缆沟进线的高压开关柜内消除凝露的技术实施方案,通过使电缆沟与开关室内空气温湿度参数趋于均匀,有效避免了高压开关柜内凝露的产生。经工程实践检验,该技术方案切实可行。Condensation of air in the cabinet is the main cause of flashover failure in the operation of substation switch cabinet.Based on the mechanism analysis of condensation formation,the technical implementation scheme of eliminating condensation in high-voltage switch cabinet with cable trench inlet is proposed.By keeping the air temperature and humidity parameters in cable trench and switch room to be uniform,condensation in high-voltage switch cabinet is effectively avoided.The engineering practice proves that the technical scheme is feasible.

关 键 词：变电站 开关柜 电缆沟 防凝露 

分 类 号：TM5[电气工程—电器]