Development of 500-kV XLPE cables and accessories for long distance underground transmission lines-Part II: jointing techniques

Author

Kubota, Takeo ; Takahashi, Yoshihisa ; Hasegawa, Takaaki ; Noda, Hajime ; Yamaguchi, Masayuki ; Tan, Masayuki

Author_Institution

Tokyo Electr. Power Co. Inc., Japan

Volume

9

Issue

4

fYear

1994

fDate

10/1/1994 12:00:00 AM

Firstpage

1750

Lastpage

1759

Abstract

This paper reports on the results of a basic inquiry for the purpose of developing extrusion-molded joints (EMJ) for use with 500 kV XLPE power cable. The authors have made it clear that the factors that govern EMJ performance, like cable performance, are contaminants in the insulation and protrusions in the semiconductor layer. Through modeling experiments, the authors determine the minimum breakdown strength of EMJ and use this to determine design values for 500 kV EMJ. Finally, they carry out breakdown tests on actual equipment, resulting in the prospect of the actual realization of 500 kV EMJ

Keywords

XLPE insulation; cable insulation; cable jointing; electric breakdown; extrusion; insulation testing; power cable testing; power cables; 500 kV; XLPE power cable; breakdown tests; contaminants; design; extrusion-molded joints; insulation; jointing techniques; minimum breakdown strength; modeling; performance; protrusions; semiconductor layer; Automated highways; Cable insulation; Cities and towns; Electric breakdown; Power cable insulation; Power cables; Testing; Underground power cables; Urban areas; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.329508

Filename

329508