Effect of gas impregnation in silicone rubber on electrical tree initiation

Author

Kamiya, Y. ; Muramoto, Y. ; Shimizu, N.

Author_Institution

Meijo Univ., Nagoya

fYear

2007

fDate

14-17 Oct. 2007

Firstpage

53

Lastpage

56

Abstract

We consider that electrical tree initiation is caused by collision impact of electrons which are accelerated in polymer free volume by electric field. It is expected that gas in free volume in SiR affects the electrical tree initiation characteristics. The electrical tree initiation voltage is increased by vacuum evacuation, SF₆ impregnation, and air re-impregnation after vacuum evacuation. It is important to investigate the influence of gas impregnation for the improvement of the electrical tree resistance in SiR. In this paper, we will report the effect of gas impregnation on electrical tree initiation in SiR.

Keywords

electric field effects; polymers; silicone rubber; trees (electrical); collision impact; electrical tree initiation; gas impregnation; polymer; silicone rubber; vacuum evacuation; Dielectrics and electrical insulation; Electrodes; Needles; Petroleum; Power cable insulation; Power cables; Rubber; Sulfur hexafluoride; Trees - insulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2007. CEIDP 2007. Annual Report - Conference on

Conference_Location

Vancouver, BC

Print_ISBN

978-1-4244-1482-6

Electronic_ISBN

978-1-4244-1482-6

Type

conf

DOI

10.1109/CEIDP.2007.4451513

Filename

4451513