Prebreakdown phenomena in standard rod gaps subjected to impulse voltages

Author

Matthews, J.E. ; Arnaud, R. Saint

Author_Institution

University of Strathclyde, Department of Electrical Engineering, Glasgow, UK

Volume

118

Issue

10

fYear

1971

fDate

10/1/1971 12:00:00 AM

Firstpage

1528

Lastpage

1534

Abstract

The prebreakdown phenomena of impulse corona, corona propagation and leader propagation in the standard rod gap in air have been studied for spacings of up to 30 cm. The variations occurring in the measured quantities of corona-current amplitude, time of occurrence, corona-propagation time, corona speed, number and length of steps in the leaders, leader-propagation time and leader speed are correlated to the variations in the conditions of gap length, applied voltage, humidity and irradiation. The results of the prebreakdown phenomena have been shown to explain the characteristics of impulse breakdown of the rod gap.

Keywords

corona; electric breakdown; impulse testing; spark gaps; applied voltage; characteristics of impulse breakdown; conditions of gap length; corona current amplitude; corona propagation; corona propagation time; corona speed; correlation; humidity and irradiation; impulse corona; leader propagation; leader propagation time; leader speed; measured quantities; number and length of steps in the leaders; prebreakdown phenomena; results; spacings; standard rod gap in air; time of occurrence; variations;

fLanguage

English

Journal_Title

Electrical Engineers, Proceedings of the Institution of

Publisher

iet

ISSN

0020-3270

Type

jour

DOI

10.1049/piee.1971.0280

Filename

5250651