The influence of applied voltage on the surface conductivity of atmospheric ice deposited on insulating surfaces

Author

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

Author_Institution

Quebec Univ., Chicoutimi, Que., Canada

Volume

1

fYear

1996

fDate

16-19 Jun 1996

Firstpage

275

Abstract

In the present paper, the effect of applied voltage on the conductivity of both the inner and outer surfaces of atmospheric ice accreted on an insulating surface was investigated. The results were compared with those obtained on a polluted insulating surface. During the development of the flashhover arc, an equivalent surface conductivity for an insulating surface covered with ice was defined. A linear relationship between the equivalent surface conductivity of ice and the conductivity of freezing water was established. The results obtained are helpful for characterizing and modeling flashover arcs on actual HV insulators covered with ice

Keywords

insulator testing; applied voltage; atmospheric ice deposition; equivalent surface conductivity; flashhover arc; freezing water; insulating surfaces; surface conductivity; Conductivity; Electrodes; Ice surface; Insulation; Leakage current; Rough surfaces; Surface contamination; Surface discharges; Surface resistance; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on

Conference_Location

Montreal, Que.

ISSN

1089-084X

Print_ISBN

0-7803-3531-7

Type

conf

DOI

10.1109/ELINSL.1996.549335

Filename

549335