Basic studies on extrusion molded joints for high-voltage XLPE cables

Author

Fukunaga, Sadao ; Yatuka, Ken ; Ban, Shun-ichiro ; Hirotu, Ken-ichi

Author_Institution

Sumitomo Electr. Ind. Ltd., Osaka, Japan

fYear

1990

fDate

3-6 Jun 1990

Firstpage

300

Lastpage

304

Abstract

The relation between jointing condition and interface microcavity generation was investigated for extrusion molded joints (EMJs) for XLPE (cross-linked polyethylene) cable. In addition, the relation between jointing condition and water generation in the cable´s reheated part was studied for the purpose of finding the optimum jointing condition that does not degrade electrical characteristics. Ways to eliminate microcavities on the interface and extra-long bow-tie trees in the middle layer of the reheated part have been investigated

Keywords

cable jointing; high-voltage techniques; insulation testing; organic insulating materials; polymers; power cables; bow-tie trees elimination; cross-linked polyethylene; extra-long bow-tie trees; extrusion molded joints; high-voltage XLPE cables; interface microcavity generation; jointing condition; microcavities elimination; on-site extrusion; optimum jointing condition; water generation; Breakdown voltage; Cable insulation; Noise generators; Optical noise; Partial discharges; Polyethylene; Power transformer insulation; Semiconductivity; Semiconductor device noise; Trees - insulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1990., Conference Record of the 1990 IEEE International Symposium on

Conference_Location

Toronto, Ont.

ISSN

1089-084X

Type

conf

DOI

10.1109/ELINSL.1990.109760

Filename

109760