Development of prefabricated type joint for 275 kV XLPE cable

Author

Yoshida, S. ; Tan, M. ; Yagi, S. ; Seo, S. ; Isaka, M.

Author_Institution

Fujikura Ltd., Tokyo, Japan

fYear

1990

fDate

3-6 Jun 1990

Firstpage

290

Lastpage

295

Abstract

Discussed are the electric characteristics and installation of a prefabricated joint for 275-kV XLPE (cross-linked polyethylene) cables that control potential distribution with an electrode embedded epoxy unit used in sealing ends and transition joints of cables for voltage of less than 154 kV, as well as with premolded stress relief cones. The interface pressure and the electric stress of each part were taken into account in the design, and it was confirmed by partial discharge, AC breakdown voltage and impulse breakdown voltage tests that the joint had high electric properties. Acoustic emission sensors have been used to predict the breakdown of the insulation

Keywords

cable jointing; high-voltage engineering; organic insulating materials; polymers; power cables; 275 kV; 275 kV XLPE cable; AC breakdown voltage testing; XLPE insulated cables; cable splicing; control potential distribution; cross-linked polyethylene; design; electric characteristics; electric stress; electrode embedded epoxy unit; impulse breakdown voltage tests; installation; interface pressure; partial discharge testing; prefabricated joint; prefabricated type joint; premolded stress relief cones; sealing ends; transition joints; Acoustic emission; Acoustic testing; Electric variables; Electrodes; Impulse testing; Partial discharges; Polyethylene; Power cables; Stress control; Voltage control;

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.1990.109758

Filename

109758