Hiroshi Yamanouchi
Fujikura
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Featured researches published by Hiroshi Yamanouchi.
IEEE Transactions on Power Delivery | 1994
Takeo Kubota; Yoshihisa Takahashi; Susumu Sakuma; Masaru Watanabe; Mamoru Kanaoka; Hiroshi Yamanouchi
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 todays 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. >
power engineering society summer meeting | 1996
Masami Fukawa; Takayuki Kawai; Yoshinori Okano; Susumu Sakuma; Shinya Asai; Mamoru Kanaoka; Hiroshi Yamanouchi
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.
IEEE Transactions on Power Delivery | 1990
S. Ogata; Y. Maekawa; K. Terashima; R. Okiai; S. Yoshida; Hiroshi Yamanouchi; S. Yokoyama
The DC characteristics of XLPE (crosslinked polyethylene) power cables were investigated. Cables with an insulation thickness of 2.5 mm, 9 mm, and 13 mm using either XLPE or conductive-inorganic-filled XLPE (XL-A) were manufactured, and four kinds of breakdown tests (DC, polarity reversal, impulse, and superposing opposite polarity impulse on DC prestress) were performed. A 250 kV, XL-A cable (20 mm thickness) was designed and manufactured using the results. The test results show that the XL-A cable possesses much better DC breakdown characteristics than the XLPE cable and is adequate for use in DC cables. >
Archive | 1985
Michio Takaoka; Tsuneaki Motai; Motoyuki Ono; Shotaro Yoshida; Toshio Niwa; Toru Takahashi; Keiichiro Kataoka; Hiroshi Yamanouchi
Archive | 1988
Masaru Sugimoto; Osamu Kohno; Yoshimitsu Ikeno; Nobuyuki Sadakata; Mikio Nakagawa; Shin'ya Aoki; Masayuki Tan; Ryuichi Okiai; Syotaro Yoshida; Masakazu Hasegawa; Hiroshi Yamanouchi
Archive | 1989
Yoshimitsu Ikeno; Osamu Kohno; Kenji Goto; Atsushi Kume; Shin'ya Aoki; Nobuyuki Sadakata; Masaru Sugimoto; Toshio Usui; Mikio Nakagawa; Taichi Yamaguchi; Masagazu Hasegawa; Ryuichi Okiai; Syotaro Yoshida; Masayuki Tan; Hiroshi Yamanouchi; Akifumi Ohnishi
Archive | 1988
Masaru Sugimoto; Osamu Kohno; Yoshimitsu Ikeno; Nobuyuki Sadakata; Mikio Nakagawa; Shin'ya Aoki; Masayuki Tan; Ryuichi Okiayu; Shotaro Yoshida; Shoichi Hasegawa; Hiroshi Yamanouchi
Archive | 1991
Kazuhiko Goto; Susumu Takahashi; Yoshihisa Takahashi; Isamu Tomaru; Hiroshi Yamanouchi
Archive | 1987
Tsuneaki Motai; Hiroshi Yamanouchi; Shotaro Yoshida
Archive | 1989
Shoichi Hasegawa; Ryuichi Okiayu; Michio Takaoka; Hiroshi Yamanouchi; Shigekazu Yokoyama; Shotaro Yoshida