Development of 500-kV XLPE cables

• Published in: Electrical engineering in Japan Vol. 118; no. 1; pp. 28 - 40
• Main Authors: Kaminaga, Kenji, Ichihara, Masaki, Jinno, Mitsuo, Tanabe, Teruyoshi, Fukunaga, Sadao, Kanaoka, Mamoru, Takehana, Hajime
• Format: Journal Article
• Language: English
• Published: New York Wiley Subscription Services, Inc., A Wiley Company 15.01.1997; John Wiley & Sons
• Subjects: 500-kV XLPE cable; Applied sciences; design stress; Electric connection. Cables. Wiring; Electrical engineering. Electrical power engineering; Electrical power engineering; Exact sciences and technology; minimum insulation breakdown strength; performance dominant factor; Power networks and lines; Underground and submarine networks; Various equipment and components; Plastic insulated cable; Breakdown voltage; Polyethylene; Electric breakdown; Dielectric test; Crosslinked polymer; Electrical insulation; High voltage cable; Contaminant; Research and development
• ISSN: 0424-7760; 1520-6416
• DOI: 10.1002/(SICI)1520-6416(19970115)118:1<28::AID-EEJ3>3.0.CO;2-P

A 500‐kV XLPE insulated cable with an insulation thickness of 27 mm has been developed for long‐distance transmission lines. Basic studies on the 500‐kV XLPE cable have shown that contaminants in the insulation may determine electrical performance. This hypothesis is justified by the good correlation obtained between statistical estimations of the size of the largest contaminant in the insulation and electrical characteristics of full‐size cables. Voltage‐withstand and long‐term tests have confirmed design values for minimum breakdown stress, ac and impulse voltage, and degradation coefficients. © 1997 Scripta Technica, Inc. Electr Eng Jpn, 118 (1): 28–40, 1997