Influence of pollution of HV insulators

Author

Gouda, O.E.

Author_Institution

Dept. of Electr. Eng., Cairo Univ., Egypt

fYear

1990

fDate

3-6 Jun 1990

Firstpage

195

Lastpage

198

Abstract

The factors affecting pollution-layer conductivity are reported and discussed. Pollution-layer conductivity is shown to depend on the contamination material, the wetting method, and the pollution-layer density. Tests to simulate pollution conditions in the desert and near cement factories are also discussed. The tests were carried out using the cap-and-pin type of insulator, which is commonly used in overhead networks in Egypt and neighboring countries. The process of wetting the polluted surfaces of transmission line insulators has a great effect on the conductivities and flashover voltages of the transmission line insulators

Keywords

air pollution; flashover; insulators; overhead lines; Egypt; HV insulators; cap-and-pin type of insulator; cement factories; contamination material; desert; flashover voltages; overhead networks; pollution conditions; pollution-layer conductivity; pollution-layer density; transmission line insulators; wetting method; Building materials; Conducting materials; Conductivity; Flashover; Insulation; Insulator testing; Pollution; Production facilities; Surface contamination; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1990., Conference Record of the 1990 IEEE International Symposium on

Conference_Location

Toronto, Ont.

ISSN

1089-084X

Type

conf

DOI

10.1109/ELINSL.1990.109739

Filename

109739