The effect of contaminant in breakdown time lag of uniform electric field using impulse breakdown in mineral oil

Author

Naoshi, H. ; Aloys, O.A. ; Kiyomitsu, A.

Author_Institution

Fac. of Eng., Ehime Univ.

fYear

1999

fDate

1999

Firstpage

207

Lastpage

210

Abstract

A breakdown time lag of uniform electric field using sphere-sphere electrodes was measured in pure mineral oil and in contaminated oil. The electrodes were steel spheres of diameter 12.5 mm. The effect for breakdown time lag wielded by differences of the distance between electrodes, applied impulse voltage and contaminant was measured, The breakdown time lag increased proportionally to applied voltage and the breakdown time lag of contaminated oil was shorter than the one of no contaminated oil. It was found that the breakdown phenomenon in this experiment was a streamer type breakdown structure

Keywords

electric breakdown; insulating oils; insulator contamination; 12.5 mm; applied impulse voltage; breakdown time lag; contaminant; contaminated oil; impulse breakdown; mineral oil; pure mineral oil; sphere-sphere electrodes; steel spheres; streamer type breakdown structure; uniform electric field; Agricultural engineering; Breakdown voltage; Copper; Electric breakdown; Electrodes; Lubricating oils; Minerals; Petroleum; Pollution measurement; Powders;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids, 1999. (ICDL '99) Proceedings of the 1999 IEEE 13th International Conference on

Conference_Location

Nara

Print_ISBN

0-7803-4759-5

Type

conf

DOI

10.1109/ICDL.1999.798907

Filename

798907