表面改性对绝缘子真空沿面闪络特性的影响  

Influence of surface modification on vacuum flashover performance of insulators

作　　者：柯昌凤[1] 刘文元[1] 段荔[1] 李琳[1] 汤俊萍[1] 陈昌华[1] 

机构地区：[1]西北核技术研究所,西安710024

出　　处：《强激光与粒子束》2014年第6期280-284,共5页High Power Laser and Particle Beams

基　　金：国防重点实验室预研基金项目(HPM1203)

摘　　要：在不同温度下对交联聚苯乙烯绝缘子进行了表面氟化处理,在脉宽0.5μs的脉冲电压下对绝缘子的真空沿面闪络性能进行测试.结果表明：在50～60℃下对交联聚苯乙烯进行表面氟化能将绝缘子沿面闪络电压提高40％～60％.通过在绝缘子表面层规律地嵌入多个薄膜导电层,制备了新型结构的高梯度绝缘子,新型高梯度绝缘子沿面闪络电压较相同材料的普通绝缘子提高40％～50％,并保持了较好的力学及加工性能.Cross-link polystyrene insulators was fluoridized at different temperature,and the vacuum flashover properties was tested by inpulse voltage with width of 0.5 μs.The flashover voltage of cross-link polystyrene insulators was enhanced by 40 60% after surface fluoridization at 50-60℃.Multilayer high gradient insulator with new structure was processed by incorporating conducting layers into the surface of insulator orderly,and the flashover voltage was enhanced by 40%-50%,compared with general insulator with the same material,while maintaining good mechanical and machining properties.

关 键 词：绝缘子 沿面闪络 氟化 多层高梯度绝缘子 

分 类 号：TM85[电气工程—高电压与绝缘技术]