The role of XLPE type on electroluminescence and subsequent electrical treeing

Author

Kabir, F. ; Braun, J.M. ; Hampton, R.N. ; Verne, S. ; Walton, M. ; Densley, J.

Author_Institution

Ontario Hydro, Toronto, Ont., Canada

Volume

2

fYear

1996

fDate

16-19 Jun 1996

Firstpage

691

Abstract

Extruded polymers used as insulations for high-voltage cables are susceptible, at high stress, to electrical-tree degradation which initiates at stress enhancements. Light is emitted during the tree-initiation phase, prior to the formation of channels and partial discharges. This paper presents data on the light emission and electrical treeing characteristics for two XLPE power cable insulations and shows that the light inception is directly related to the tree inception, as measured by ramp- or constant-voltage tests

Keywords

XLPE insulation; electric breakdown; electroluminescence; partial discharges; power cable insulation; power cable testing; trees (electrical); XLPE power cable insulation; channels formation; electrical treeing; electroluminescence; light emission; partial discharges; stress enhancements; tree-initiation phase; Cable insulation; Cables; Dielectrics and electrical insulation; Electroluminescence; Partial discharges; Plastic insulation; Polymers; Stress; Thermal degradation; Trees - insulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on

Conference_Location

Montreal, Que.

ISSN

1089-084X

Print_ISBN

0-7803-3531-7

Type

conf

DOI

10.1109/ELINSL.1996.549439

Filename

549439