Modeling of the AC arc discharge on ice surfaces

Author

Farzaneh, M. ; Zhang, J. ; Chen, X.

Author_Institution

Quebec Univ., Chicoutimi, Que., Canada

Volume

12

Issue

1

fYear

1997

fDate

1/1/1997 12:00:00 AM

Firstpage

325

Lastpage

338

Abstract

A model for predicting the flashover voltage of ice-covered insulators energized with AC voltage is presented in this paper. The model takes into account the variation of ice surface conductivity as a function of freezing water conductivity. The effects of the length of the arc on its own characteristics, as well as the AC arc reignition condition, were determined in a laboratory investigation using triangular ice samples. The model is applied to a short string of 5 IEEE standard insulator units. There is an excellent concordance between the 50% flashover voltage calculated from the mathematical model and the experimental results

Keywords

flashover; ice; insulators; surface conductivity; AC arc discharge modeling; AC arc reignition condition; AC voltage; IEEE standard insulator units; arc constants; arc length; arc reignition condition; equivalent surface conductivity; flashover voltage prediction; freezing water conductivity; ice surface conductivity; ice surfaces; ice-covered insulators; industrial insulators; triangular ice samples; Arc discharges; Conductors; Corona; Dielectrics and electrical insulation; Electrodes; Flashover; Ice surface; Laboratories; Poles and towers; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.568256

Filename

568256