The influence of polarity on DC-induced streamers in n-hexane

Author

Marsden, H.I. ; McGrath, P.B.

Author_Institution

Clarkson Univ., Potsdam, NY, USA

Volume

26

Issue

6

fYear

1991

fDate

12/1/1991 12:00:00 AM

Firstpage

1189

Lastpage

1194

Abstract

It is shown that prebreakdown streamers can be generated and recorded when DC voltages are applied. With the aid of point-to-plane electrodes it is shown that strong polarity effects exist. A disturbance that originates at the anode may take one of two distinctly different forms. The commonly observed point anode event is shown to be supersonic, while its less frequent counterpart is subsonic. The subsonic anode generated streamer closely resembles that observed when using a point cathode. From conduction measurements made in the test cell circuit, it is shown that the inception and growth phase of each type of streamer is associated with a specific phase of a unique conduction current pulse burst

Keywords

discharges (electric); electric breakdown of liquids; organic insulating materials; DC-induced streamers; conduction current pulse burst; growth phase; inception; n-hexane; point anode event; point-to-plane electrodes; polarity; prebreakdown streamers; subsonic anode generated streamer; test cell circuit; Anodes; Cathodes; Circuit testing; Current measurement; DC generators; Electrodes; Phase measurement; Pulse circuits; Pulse measurements; Voltage;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.108158

Filename

108158