Title :
Development of 500-kV XLPE cables and accessories for long distance underground transmission line-Part I: insulation design of cables
Author :
Kubota, Takeo ; Takahashi, Yoshihisa ; Sakuma, Susumu ; Watanabe, Masaru ; Kanaoka, Mamoru ; Yamanouchi, Hiroshi
Author_Institution :
Tokyo Electr. Power Co. Inc., Japan
fDate :
10/1/1994 12:00:00 AM
Abstract :
This paper discusses the results of a basic study for the development of 500 kV XLPE power cables. The authors have established that the factors that decide the performance of today´s XLPE cables are impurities in the insulator and protrusions on the semiconductive layer, and that the insulation performance of XLPE power cables is determined by the size of these defects. In model tests of XLPE power cables, the minimum insulation breakdown stress of cables was determined, to set the design values for 500 kV XLPE cable. As a result, it was found that it is possible to design cables having an insulation thickness of 25 mm
Keywords :
XLPE insulation; design engineering; electric breakdown; insulation testing; power cable testing; power transmission lines; underground cables; 25 mm; 500 kV; EHV; XLPE power cables; breakdown stress; defects; development; insulation design; long distance underground transmission line; model tests; performance; semiconductive layer; thickness; Cable insulation; Dielectrics and electrical insulation; Electric breakdown; Oil filled cables; Power cables; Power transmission; Power transmission lines; Stress; Underground power cables; Urban areas;
Journal_Title :
Power Delivery, IEEE Transactions on
