摘要
分别对N2及SF6中不同均匀度电场和不同气压下环氧树脂的沿面闪络特性进行研究,并对电极不对称时正、负极性直流电源下环氧树脂的沿面闪络特性进行对比分析。结果表明:SF6中环氧树脂的沿面闪络电压对电场均匀度更敏感,随气体压强的变化更大;电极不对称时N2中与SF6中环氧树脂的沿面闪络电压有相反的极性特性。
The flashover characteristics of epoxy resin in N2 and SF6 under different electric field and different air pressure were studied, and the flashover characteristics of epoxy resin under positive and negative DC power were compared when the electrodes are asymmetric. The results show that the flashover voltage of epoxy resin in SF6 is more sensitive to the extremely uneven electric field and changes more with the gas pressure. When the electrodes are asymmetric, the flashover voltage of epoxy resin in N2 is opposite to that in SF6.
作者
刘海锋
王涛
胡伟涛
梁少栋
LIU Haifeng;WANG Tao;HU Weitao;LIANG Shaodong(State Grid Hebei Maintenance Branch,Shijiazhuang 050000,China;North China Electric Power University,Baoding 071003,China)
出处
《绝缘材料》
CAS
北大核心
2019年第12期23-26,共4页
Insulating Materials
关键词
N2
SF6
沿面闪络
电场均匀度
气压
极性
N2
SF6
surface flashover
uniformity of electric field
air pressure
polar
