論文 - 大塚 信也
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Propagation Properties of Electromagnetic Waves Emitted by Partial Discharge in Oil for Model Transformer Tank with a Practical Coil 査読有り
M.Kozako, A.Morita, S.Ohtsuka, M.Hikita, S.Yamada, Y.Taniguchi
International Conference on Condition Monitoring and Diagnosis (CMD2010) A4-3 123 - 126 2010年09月
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Switching Characteristics of SiC-VJFET and Manufacture of Inverter 査読有り
Katsuhiko Harada, Kentaro Maki, Sompathana Pounyakhet, Junichiro Tokiyoshi, Masahiro Kozako, Shinya Ohtsuka, Masayuki Hikita,
The 2010 International Power Electronics Conference,2010 ( 0424 ) 176 - 179 2010年06月
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Investigation of EMTP Transformer Model for TRV Calculation after Fault Current Interrupting by Using FRA Measurement 査読有り
MYOMIN Thein, IKEDA Hisatoshi, TODA Hiroaki, HARADA Katsuhiko,OHTSUKA Shinya, HIKITA Masayuki, HAGINOMORI Eiichi, KOSHIDUKA Tadashi,
2010 Transmission and Distribution Conference and Exposision 0424 2010年04月
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Corona Inception Electric Field of Arcing Horn Model by Electric Field Calculation Based On 2D And 3D Models 査読有り
Hiroyuki Shirai,Nhiarue Touamoua ,Masahiro Kozako,Masayuki Hikita,Minoru Uehara ,Yukito Tsuji,Shinya Ohtsuka
2009 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering ( OC-3 ) 126 - 129 2009年11月
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Low temperature operation of Self-recovering micro fuse in liquid nitrogen and its ON resistance properties 査読有り
Shigeru Mitarai,Naoki Sugitani,Masahiro Kozako,Masayuki Hikita,Shinya Ohtsuka
2009 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering ( PB-6 ) 346 - 349 2009年11月
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Preparation and Fundamental Investigation of Characteristics of Silicon Rubber Nanocomposite for Outdoor Insulation 査読有り
Masashi Higashikoji,Masahiro Kozako,Shinya Ohtsuka,Masayuki Hikita,Toshikatsu Tanaka
2009 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering ( PB-5 ) 342 - 345 2009年11月
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Comparison of Partial Discharge Charge Quantity between Tio2 Filler Filled and SiO2 Filler Filled Enameled Wires Under High-frequency AC Voltage Simulating Inverter Surge Voltage 査読有り
Kouhei Yamaguchi,Masato Fujimoto,Masahiro Kozako,Shinya Ohtsuka,Masayuki Hikita,Makoto Ohya,Keiichi Tomizawa,Noriyoshi Fushimi
2009 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering ( PA-12 ) 300 - 303 2009年11月
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Electromagnetic Wave Propagation Characteristics Emitted from Partial Discharge by Needle - Plane Electrode in Transformer Tank Model with Practical Coil 査読有り
Akinori Morita,Kyohei Yamada,Yutaro Abe,Masahiro Kozako,Shinya Ohtsuka,Masayuki Hikita,Shin Yamada,Yasuhiko Taniguchi
2009 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering ( PA-11 ) 296 - 299 2009年11月
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Propagation properties of PD-induced Electromagnetic Wave in model 66kV GIS with T-Branch structure 査読有り
Y. Yamamura,T. Nakano,S. Ohtsuka,M. Kozako,M. Hikita,T. Hoshino,S. Maruyama,T. Sakaibara,G. Ueta,S. Okabe
2009 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering ( PA-10 ) 292 - 295 2009年11月
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Gas pressure dependence of Negative Lightning Impulse PD properties in SF6 gas observed by time and spatial-resolved spectroscopic measurement system 査読有り
Yuta Suzuki,Tomoki Hara,Masaaki Furukawa,Atsushi Sogabe,Masahiro Kozako,Masayuki Hikita,Shinya Ohtsuka
2009 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering ( PA-6 ) 276 - 279 2009年11月
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Investigation of PD condition in SF6 gas by image processing of spatial-resolved spectroscopic light emission images under positive lightning impulse voltage 査読有り
Tomoki Hara,Yuta Suzuki,Masayuki Hikita,Shinya Ohtsuka
2009 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering ( PA-5 ) 272 - 275 2009年11月
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Identification of Propagation Path of Acoustic Wave Signals in Simulated Transformer using Wavelet Analysis 査読有り
Kyohei Yamada,Akinori Morita,Masahiro Kozako,Shinya Ohtsuka,Masayuki Hikita,Kenji Kashine,Itaru Nakamura,Hidenobu Koide
2009 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering ( OA-2 ) 79 - 82 2009年11月
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Development of partial discharge location system of power cable using GPS and atomic clock 査読有り
Tomohiko Katayama,Masahiro Kozako,Shinya Ohtsuka,Masayuki Hikita,Kazutoshi Abe,Hiroshi Suzuki
2009 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering ( PA-4 ) 268 - 271 2009年11月
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BreakdownMechanism in C3F8/CO2 Gas Mixture under Non-uniform Field on the Basis of Partial Discharge Properties 査読有り
Masayuki Hikita,Shinya Ohtsuka,Shigemitsu Okabe,Genyo Ueta
IEEE Transactions on Dielectrics and Electrical Insulation 16 ( 5 ) 1413 - 1419 2009年10月
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Investigation of Transuformer Model for TRV Calculation by EMTP 査読有り
M.M.Thein, H.Ikeda, K.Harada, S.Ohtsuka, M.Hikita, E.Haginomori, T.Koshiduka
IEEJ Trans. on PE (電気学会論文誌B) 129 ( 10 ) 1174 - 1180 2009年10月
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Rersearch on Acceleration Phenomena with Test equipment of simulating Puffer type Gas Circuit Breaker 査読有り
H.Ikeda, S.Kawachi, K.Harada, S.Ohtsuka, M.Hikita, T.Nagata, K.Iwamoto
IEEE Transmission & Distribution conference: Asia and Pacific (T&D2009) OR10-1 1 - 6 2009年10月
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Electromagnetic Wave Propagation Characteristics Emitted from air PD Caused by Simulated PD Source in Transformer Tank Model with Practical Coil 査読有り
Masayuki Hikita,Akinori Morita,Masahiro Kozako,Shinya Ohtsuka,Shin Yamada,Yasuhiko Taniguchi
16th International Sympasium on High Voltage Engineering (ISH2009) 2009年08月
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SENSITIVITY OF UHF COUPLER AND LOOP ELECTRODE USING UHF METHOD AND COMPARISON FOR DETECTING A PARTIAL DISCHARGE IN GIS (2) 査読有り
T. Hoshino,S. Maruyama,T. Sakakibara,S. Ohtsuka,M. Hikita,G. Ueta
16th International Sympasium on High Voltage Engineering (ISH2009) 2009年08月
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INFLUENCE OF EXTERNAL NOISES ON INSULATION DIAGNOSIS OF GIS WHEN UHF PD DETECTION METHOD IS USED 査読有り
Masayuki Hikita,Taiki Nakano,Kazutaka Omori ,Masashi Sawada,Shinya Ohtsuka,Masahiro Kozako,Hisatoshi,Ikeda ,Hiroshi Koyama,Toshihiro Hoshino,Shiro Maruyama,Yasuhiko Taniguchi,Takaaki Sakakibara
16th International Sympasium on High Voltage Engineering (ISH2009) 2009年08月
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INFLUENCE OF T-BRANCH STRUCTURE OF MODEL GIS ON PROPAGATION PROPERTIES OF PD-INDUCED ELECTROMAGNETIC WAVE 査読有り
T. Nakano,K. Omori,M. Sawada,Y. Yamamura,S. Ohtsuka,M. Kozako,H. Ikeda,M. Hikita,T. Hoshino,S. Maruyama,T. Sakakibara,G. Ueta,S. Okabe
16th International Sympasium on High Voltage Engineering (ISH2009) 2009年08月