Fabrication and experimental verification of permittivity graded solid spacer for GIS

Author

Kurimoto, M. ; Kato, K. ; Adachi, H. ; Sakuma, S. ; Okubo, H.

Author_Institution

Okubo Lab., Nagoya Univ., Japan

fYear

2002

fDate

2002

Firstpage

789

Lastpage

792

Abstract

Functionally gradient materials (FGM) have a spatial distribution of permittivity in order to achieve an efficient stress control. The application of FGM to solid spacers for gas insulated switchgear (GIS) is expected to improve electric field distribution around the spacer. In this paper, we discussed the applicability of FGM with experimental results and fabrication conditions. We firstly investigated the field control effect of the double-layer distribution FGM spacer by dielectric breakdown experiments under the application of lightning impulse voltage. Secondly, we confirmed the effect of FGM on the enhancement of electric field utilization experimentally. Thirdly, we succeeded in the fabrication of continuously graded distribution of permittivity by applying the centrifugal force technique.

Keywords

electric breakdown; electric fields; gas insulated switchgear; insulators; permittivity; GIS; breakdown characteristics; centrifugal force technique; electric field distribution; experimental verification; fabrication conditions; functionally gradient materials; gas insulated switchgear; lightning impulse voltage application; permittivity graded solid spacer; stress control; Dielectric breakdown; Fabrication; Gas insulation; Geographic Information Systems; Lighting control; Permittivity; Solids; Stress control; Switchgear; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2002 Annual Report Conference on

Print_ISBN

0-7803-7502-5

Type

conf

DOI

10.1109/CEIDP.2002.1048914

Filename

1048914