Influence of desert pollution on the lightning impulse breakdown voltages of rod to plane air gaps

Author

Al-Arainy, A.A. ; Malik, N.H. ; Qureshi, M.I.

Author_Institution

Dept. of Electr. Eng., King Saud Univ., Riyadh, Saudi Arabia

Volume

6

Issue

1

fYear

1991

fDate

1/1/1991 12:00:00 AM

Firstpage

421

Lastpage

428

Abstract

A discussion is presented of the influence of desert contamination on the breakdown voltage characteristics of rod-plane air gaps when subjected to standard lightning impulse voltages of positive and negative polarities. Experimental simulation of desert air pollution was carried out in a chamber where particle parameters could be controlled independently. The gaps studied were from 5 cm up to 2 m with applied voltages, there is a considerable influence on the breakdown behavior. For such cases, the breakdown voltages for dust contaminated gaps can be lower as well as higher than the corresponding values for clean air gaps, depending upon the gap length and the cathode radius. Detailed results and analysis are provided

Keywords

electric breakdown of gases; insulation testing; insulators; lightning; power systems; power transmission; power transmission lines; 1 MV; 5 cm to 2 m; cathode; contamination; desert pollution; dust; gap length; insulation testing; insulators; lightning impulse breakdown voltages; polarities; power systems; rod to plane air gaps; sound; Air gaps; Air pollution; Breakdown voltage; Cathodes; Contamination; Educational institutions; Electric breakdown; Lightning; Storms; Urban pollution;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.103767

Filename

103767