Study of water droplet discharge by electric field computation and high-speed video

Author

Zixia, Cheng ; Xidong, Liang ; Yuanxiang, Zhou ; Shaowu, Wang ; Zhicheng, Guan

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

Volume

2

fYear

2003

fDate

1-5 June 2003

Firstpage

820

Abstract

In this paper, model of composite insulators were designed to study distortion, movement of the water droplets when discharging occurs on the shed surface of composite insulators applied with uniformity electric field. The distortion and movements of single and multiple water droplets on the surface of insulator in ac and dc electric fields were studied. The results show that the water droplets gradually increase in length in the action of electric field, and the distortion considerably increases with the increase of the electric fields. From these results, the effect of water droplets on flashover voltage is analyzed.

Keywords

composite insulators; drops; finite element analysis; flashover; silicone rubber insulators; water; H₂O; ac electric fields; composite insulators; dc electric fields; electric field computation; flashover voltage; high-speed video; water droplet discharge; Dielectrics and electrical insulation; Electric fields; Electric resistance; Flashover; Porcelain; Surface contamination; Surface discharges; Surface resistance; Voltage; Water pollution;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on

ISSN

1081-7735

Print_ISBN

0-7803-7725-7

Type

conf

DOI

10.1109/ICPADM.2003.1218545

Filename

1218545