摘要
35 kV高压开关柜长期在潮湿环境中运行时,容易产生凝露现象,进而引起爬电、闪络、绝缘击穿等情况,导致短路故障或事故发生,为此对35 kV高压开关柜内部的凝露现象及常见的几种预防措施进行了对比分析,并重点对35 kV高压开关柜柜内加热除湿方案进行试验论证,并结合高湿度下开关柜的凝露机理仿真分析,提出了行之有效的加热器布置方案。
When the 35 kV high-voltage switchgear is operated in a humid environment for a long time,it is prone to condensation,which can lead to creepage,flashover,insulation breakdown,and short circuit faults or accidents.Therefore,a comparative analysis was conducted on the condensation phenomenon inside the 35 kV high-voltage switchgear and several common preventive measures.Focusing on the experimental demonstration of the heating and dehumidification scheme inside the 35 kV high-voltage switchgear cabinet,and combining with the simulation analysis of the condensation mechanism of the switchgear under high humidity,an effective heater layout scheme has been proposed.
作者
许焰
XU Yan(Tianyi Tongyi Electric Company Limited,Fuzhou 350116,China)
出处
《吉林电力》
2023年第6期53-56,共4页
Jilin Electric Power
关键词
35
kV高压开关柜
绝缘
凝露
预防
加热除湿
35 kV high voltage switchgear
insulation
condensation
prevention
heating dehumidification
