Development of 500-kV XLPE cables and accessories for long distance underground transmission line. Part 3: Electrical properties of 500-kV cables

Journal Article · Mon Apr 01 00:00:00 EST 1996 · IEEE Transactions on Power Delivery

DOI:https://doi.org/10.1109/61.489315· OSTI ID:244793

Fukawa, Masami ^[1]; Kawai, Takayuki ^[2]; Okano, Yoshinori ^[3]; Sakuma, Susumu ^[4]; Asai, Shinya ^[5]; Kanaoka, Mamoru ^[6]; Yamanouchi, Hiroshi ^[7]

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1. Tokyo Electric Power Co. (Japan)
2. Chubu Electric Power Co., Inc., Nagoya (Japan)
3. Kansai Electric Power Co., Osaka (Japan)
4. Furukawa Electric Co., Ltd., Tokyo (Japan)
5. Sumitomo Electric Industries Ltd., Osaka (Japan)
6. Hitachi Cable Ltd. (Japan)
7. Fujikura Ltd., Tokyo (Japan)

500-kV XLPE-insulated cable with an insulation thickness of 27 mm has been developed for long-distance transmission lines. Basic studies on 500-kV XLPE cable have shown that contaminants in the insulation may be the factor determining 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 the electrical characteristics of full-sized cables. Voltage-withstand and long-term tests have confirmed the design values for minimum breakdown stress, for AC and impulse voltage, and for the degradation coefficients.

• OSTI ID: 244793
• Report Number(s): CONF-950727-; ISSN 0885-8977; TRN: IM9627%%115
• Journal Information: IEEE Transactions on Power Delivery, Vol. 11, Issue 2; Conference: 1995 IEEE Power Engineering Society summer meeting, Portland, OR (United States), 23-27 Jul 1995; Other Information: PBD: Apr 1996
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
POWER TRANSMISSION LINES
ELECTRIC CABLES
UNDERGROUND POWER TRANSMISSION
EHV AC SYSTEMS
ELECTRICAL INSULATION
PERFORMANCE