Computation of ac Wet Flashover Voltage of Ceramic and Composite Insulators

被引:25
|
作者
Lan, L. [1 ,2 ]
Gorur, R. S. [1 ]
机构
[1] Arizona State Univ, Dept Elect Engn, Tempe, AZ 85287 USA
[2] Wuhan Univ, Sch Elect Engn, Wuhan 430072, Peoples R China
关键词
Wet flashover; ceramic insulators; composite; (nonceramic; polymeric); insulators; E-field simulation; arc; residual resistance;
D O I
10.1109/TDEI.2008.4656243
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
This paper presents a theoretical method for calculating the flashover voltage of ceramic and composite insulators under wet conditions. The insulator surface is assumed to be clean. A 3-Dimensional computer package (Coulomb) was used to calculate the electric field of wet surfaces. The surface wettability has been varied from hydrophobic to hydrophilic using the Swedish Transmission Research Institute (STRI) method of classification. The calculated results are in good agreement with published data.
引用
收藏
页码:1346 / 1352
页数:7
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