Correlation between numerical field computation and experimental investigations on the parameters governing the flashover behavior of solid/liquid interfaces

Author

Krins, M. ; Gärtner, J. ; Jochem, R. ; Gockenbach, E.

Author_Institution

Inst. of High Voltage Tech. & Eng., Hannover Univ., Germany

Volume

2

fYear

2000

fDate

15-18 Oct. 2000

Firstpage

788

Abstract

This paper compares experimental investigations dealing with the ac breakdown and flashover strength of liquid insulated gaps without and with a parallel solid/liquid interface in a non-uniform electrical field with results obtained from field calculations obtained using the finite element method. The liquids investigated were a mineral based transformer oil and an ester liquid, the solid insulating materials were laminated paper, glass-fiber reinforced epoxy resin, and polyethylene.

Keywords

composite insulating materials; dielectric liquids; electric breakdown; finite element analysis; flashover; interface phenomena; organic insulating materials; transformer oil; ac breakdown; ester liquid; field calculations; finite element method; flashover strength; glass-fiber reinforced epoxy resin; laminated paper; liquid insulated gaps; mineral based transformer oil; nonuniform electrical field; numerical field computation; parallel solid/liquid interface; polyethylene; solid insulating materials; Computer interfaces; Dielectric liquids; Dielectrics and electrical insulation; Electric breakdown; Finite element methods; Flashover; Minerals; Oil insulation; Power transformer insulation; Solids;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on

Print_ISBN

0-7803-6413-9

Type

conf

DOI

10.1109/CEIDP.2000.884076

Filename

884076