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Publication
Featured researches published by Tadashi Morita.
IEEE Transactions on Power Delivery | 1992
Shuichi Sugiyama; Tadashi Morita; Tatsuzo Hosokawa; Yoshihisa Sekiya; Y. Mukaiyama; I. Takagi; Kwang-Sik Lee
Using an experimental apparatus modeled for the contact portion of a gas insulated switchgear (GIS), the influence of the distance between the portion and the dead tank of the GIS and arc duration on the breakdown voltage was investigated. The study was conducted both experimentally and theoretically for the case when the arc was ignited in the portion. In the theoretical analysis, profiles of flow velocity and gas density were calculated. Breakdown voltage evaluated through the gas density was in relatively good agreement with that of the experiment. >
IEEE Transactions on Dielectrics and Electrical Insulation | 1994
Shuichi Sugiyama; Tadashi Morita; Tatsuzo Hosokawa; Yoshihisa Sekiya; Kwang-Sik Lee
Using an experimental apparatus modeled for a gas-insulated switchgear (GIS), the influence of the arc duration on the breakdown voltage between the contact and the grounded tank of the GIS was investigated in the case that the arc was kept ignited in the contact area. From the result, characteristics of the breakdown voltage vs. the arc duration were found to be divided into six stages and the characteristics in each stage were estimated. >
Ieej Transactions on Power and Energy | 1996
Koichi Nakamura; Astushi Noro; Toshihide Watanabe; Tadashi Morita
Journal of The Illuminating Engineering Institute of Japan | 1999
Tadashi Morita; Hiromi Iwai; Shinichi Kai; Masayoshi Nagata
Journal of Light & Visual Environment | 1999
Tadashi Morita; Hiromi Iwai; Shinichi Kai; Masayoshi Nagata
Journal of The Illuminating Engineering Institute of Japan | 1998
Shinichi Kai; Yuji Honda; Masayoshi Nagata; Hiromi Iwai; Tadashi Morita
Ieej Transactions on Power and Energy | 1995
Yu Ashida; Shinichi Kai; Masayoshi Nagata; Hiromi Iwai; Tadashi Morita
Electrical Engineering in Japan | 1992
Yoshihisa Sekiya; Tatsuzo Hosokawa; Tadashi Morita; Shuichi Sugiyama; Yoku Mukaiyama; Isao Takagi
Ieej Transactions on Power and Energy | 1991
Tatuzo Hosokawa; Kazuhiko Kwamura; Yoshihisa Sekiya; Tadashi Morita; Shuichi Sugiyama
Ieej Transactions on Power and Energy | 1990
Shuichi Sugiyama; Tadashi Morita; Tatuzo Hosokawa; Yoshihisa Sekiya; Yoku Mukaiyama; Isao Takagi