The influence of water in XLPE cable conductor on XLPE insulation breakdown voltage and partial discharge

Author

Nikolajevic, S.V. ; Stojanovic, B.B.

Author_Institution

Electr. Power Distribution Co., Beograd, Serbia

Volume

2

fYear

1996

fDate

16-19 Jun 1996

Firstpage

604

Abstract

This paper presents the results of a continuing investigation into degradation of the crosslinked polyethylene (XLPE) power cable insulation. The paper deals with the changing of water absorption of various types of XLPE power cable insulations: steam and nitrogen-dry cured crosslinked polyethylene; (XL) and steam and nitrogen-dry cured water tree retardant crosslinked polyethylene (WTR-XL). The results of the study into effect of water absorption on breakdown stress (AC BDS) and partial discharge for different XLPE power cable insulations are also given. During the aging tests, the cable conductor was poured with tap water and the cable ends were properly closed

Keywords

XLPE insulation; ageing; electric breakdown; insulation testing; partial discharges; power cable insulation; power cable testing; trees (electrical); XLPE power cable insulation; aging tests; breakdown stress; dry cured crosslinked polyethylene; insulation breakdown tests; insulation breakdown voltage; partial discharge; water absorption; water tree retardant crosslinked polyethylene; water treeing; Absorption; Cable insulation; Conductors; Degradation; Electric breakdown; Polyethylene; Power cable insulation; Power cables; Retardants; 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.1996.549418

Filename

549418