Computation of AC wet flashover voltage of ceramic and composite insulators

Author

Lan, L. ; Gorur, R.S.

Author_Institution

Sch. of Electr. Eng., Wuhan Univ., Wuhan

Volume

15

Issue

5

fYear

2008

fDate

10/1/2008 12:00:00 AM

Firstpage

1346

Lastpage

1352

Abstract

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.

Keywords

ceramic insulators; composite insulators; flashover; 3-dimensional computer package; AC wet flashover voltage; STRI method; Swedish transmission research institute method; ceramic insulators; composite insulators; electric field calculation; flashover voltage calculation; surface wettability; Ceramics; Dielectrics and electrical insulation; Flashover; Glass; Insulator testing; Plastic insulation; Porcelain; Surface cleaning; Surface contamination; Voltage; E-field simulation; Wet flashover; arc; ceramic insulators; composite (nonceramic, polymeric) insulators; residual resistance;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

Conference_Location

10/1/2008 12:00:00 AM

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2008.4656243

Filename

4656243