DC Surface Flashover Characteristics on Polyimide Under Different Temperature in Vacuum

被引：0
作者：
Zhang, Zhen-Jun [1 ]
Zheng, Xiao-Quan [1 ]
Wu, Wen-Bin [1 ]
Yang, Pei [1 ]
Peng, Ping [1 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Shaanxi, Peoples R China
来源：
2013 IEEE CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA (CEIDP) | 2013年
关键词：
flashover; polyimide; temperature; electron emission; gas desorption; VOLTAGE;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Researching the effects on different temperature of dc surface flashover characteristics on solid insulating dielectric in vacuum what can improve the reliability applied to complex environments. In this paper, we use the self-made polyimide (PI) sample as the object of study. The dc surface flashover characteristics at different temperatures (193-353K) are experimental studied, with theoretical analysis. It is found that the dc surface flashover voltage presented first decreased and then increased and finally decreased again with the increasing of temperature. The dc flashover voltage reached the maximum at 313K and minimum at 273K respectively. The experiments suggest that the electron emission near the cathode, the charge transport of dielectric insulators and the gas desorption are important reasons for the affecting of PI material dc flashover voltage as the temperature increased. Besides, the characteristics of the material itself also has important effects when the temperature varied.
引用
收藏
页码：468 / 471
页数：4
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