Streamer formation in perfluoropolyether under impulse conditions

Author

Yamashita, H. ; Forster, E.O. ; Pompili, M.

Author_Institution

Dept. of Electr. Eng., Keio Univ., Tokyo, Japan

Volume

28

Issue

3

fYear

1993

fDate

6/1/1993 12:00:00 AM

Firstpage

324

Lastpage

329

Abstract

A family of perfluorinated fluids that recently has become available, called perfluoropolyethers, contain oxygen in addition to fluorine and carbon and are potentially interesting as electrical insulating fluids. A study of their behavior under electrical pulse conditions is reported. Under the prevailing nonuniform field conditions, the breakdown voltage was lower when the needle was a cathode than when it was an anode. The streamer structures and their inception voltages are studied in some detail. The effect of pressure on the streamer structure is evaluated

Keywords

discharges (electric); electric breakdown of liquids; impulse testing; insulation testing; organic insulating materials; polymers; breakdown voltage; electrical insulating fluids; electrical pulse conditions; inception voltages; perfluorinated fluids; perfluoropolyether; pressure effect; streamer structures; Cathodes; Dielectrics and electrical insulation; Electronics industry; Electrons; Heat transfer; Hydrocarbons; Needles; Physics; Viscosity; Voltage;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.236216

Filename

236216