Papers - HAYAKAWA, Naoki
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Physical Mechanisms of Partial Discharges at Nitrogen Filled Delamination in Epoxy Cast Resin Power Apparatus Reviewed
D.-E.A.Mansour, H.Kojima, N.Hayakawa, M.Hanai, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 20 ( 2 ) page： 454-461 2013
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Status of 275 kV Class REBCO Superconducting Cable Development Reviewed
S.Mukoyama, M.Yagi, T.Mitsuhashi, T.Nomura, J.Ten, R.Nakayama, T.Ohkuma, O.Maruyama, Y.Aoki, T.Saitoh, N.Amemiya, A.Ishiyama, N.Hayakawa
IEEE Trans. on Applied Superconductivity Vol. 23 ( 3 ) page： 5402804 2013
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Feasibility Study on Superconducting Power Flow Controller and Fault Current Limiter (SPFCL) Reviewed
N.Hayakawa, X.Mao, H.Kojima, M.Hanai, H.Okubo, N.Kashima, S.Nagaya, S.Sugimoto
IEEE Trans. on Applied Superconductivity Vol. 23 ( 3 ) page： 5600504 2013
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Development of 66 kV and 275 kV Class REBCO HTS Power Cables Reviewed
O.Maruyama, T.Ohkuma, T.Masuda, Y.Ashibe, S.Mukoyama, M.Yagi, T.Saitoh, T.Hasegawa, N.Amemiya, A.Ishiyama, N.Hayakawa
IEEE Trans. on Applied Superconductivity Vol. 23 ( 3 ) page： 5401405 2013
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部分放電メカニズムに基づくGIS中金属異物形状同定手法 Reviewed
小島寛樹，鈴木隆文，早川直樹，花井正広，大久保仁
電気学会論文誌B Vol. 133 ( 1 ) page： 114-120 2013
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Integration of Asset Management and Smart Grid with Intelligent Grid Management System Reviewed
M.Hanai, H.Kojima, N.Hayakawa, K.Shinoda, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 20 ( 6 ) page： 2195-2202 2013
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Charge behavior in Palm Fatty Acid Ester Oil (PFAE) / pressboard composite insulation system under voltage application Reviewed
H.Kojima. N.Hayakawa, H.Okubo, K.Kato, K.Kawanishi, H.Koide
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 19 ( 2 ) page： 419-423 2012
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Estimation of Partial Discharge Inception Voltage of Magnet Wire under Inverter Surge Voltage by Volume-Time Theory Reviewed
N.Hayakawa, F.Shimizu, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 19 ( 2 ) page： 550-557 2012
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Feasibility Study on High Temperature Superconducting Fault Current Limiting Cable (SFCLC) Using Flux Flow Resistance Reviewed
H.Kojima, F.Kato, M.Hanai, N.Hayakawa, H.Okubo
IEEE Trans. on Applied Superconductivity Vol. 22 ( 2 ) page： 4800105 2012
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Current limitation and recovery function for superconducting fault current limiting transformer (SFCLT) Reviewed
J.Himbele, H.Kojima, N.Hayakawa, M.Hanai, H.Okubo
Physics Procedeia Vol. 36 page： 841-844 2012
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Superconducting Fault Current Limiting Cable (SFCLC) with Current Limiting and Recovery Function Reviewed
H.Kojima, F.Kato, N.Hayakawa, M.Hanai, H.Okubo
Physics Procedeia Vol. 36 page： 1296-1300 2012
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Recent Progress in Electrical Insulation Techniques for HTS Power Apparatus Reviewed
N.Hayakawa, H.Kojima, M.Hanai, H.Okubo
Physics Procedeia Vol. 36 page： 1305-1308 2012
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周波数応答解析によるモータサージ電圧の推定と抑制 Reviewed
脇本亨，高橋芳光，木村統公，鳴海礼斗史，早川直樹
電気学会論文誌A Vol. 132 ( 8 ) page： 630-637 2012
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Model Cable Tests for a 275 kV 3 kA HTS Power Cable Reviewed
S.Mukoyama, M.Yagi, T.Yonemura, T.Nomura, N.Fujiwara, Y.Ichikawa, Y.Aoki, T.Saitoh, N.Amemiya, A.Ishiyama, N.Hayakawa
IEEE Trans. on Applied Superconductivity Vol. 21 ( 3 ) page： 976-979 2011
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Analysis of Current Limiting and Recovery Characteristics of Superconducting Fault Current Limiting Transformer (SFCLT) with YBCO Coated Conductors Reviewed
N.Hayakawa, T.Kito, H.Kojima, M.Hanai, H.Okubo
IEEE Trans. on Applied Superconductivity Vol. 21 ( 3 ) page： 1422-1425 2011
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Development Process of Impulse Surface Flashover on Alumina Dielectrics in Vacuum Reviewed
H.Kojima, N.Hayakawa, T.Ishida, H.Okubo, K.Tsuchiya
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 18 ( 3 ) page： 918-923 2011
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Evaluation of UHF Method for Partial Discharge Measurement by Simultaneous Observation of UHF Signal and Current Pulse Waveforms Reviewed
M.Yoshida, H.Kojima, N.Hayakawa, F.Endo, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 18 ( 2 ) page： 425-431 2011
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Progress in Development of Superconducting Fault Current Limiting Transformer (SFCLT) Reviewed
N.Hayakawa, H.Kojima, M.Hanai, H.Okubo
IEEE Trans. on Applied Superconductivity Vol. 21 ( 3 ) page： 1397-1400 2011
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Current Limiting and Recovery Characteristics of 2 MVA Class Superconducting Fault Current Limiting Transformer (SFCLT) Reviewed
H.Kojima, M.Kotari, T.Kito, N.Hayakawa, M.Hanai, H.Okubo
IEEE Trans. on Applied Superconductivity Vol. 21 ( 3 ) page： 1401-1404 2011
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Conditioning Mechanism of Cu-Cr Electrode Based on Electrode Surface State under Impulse Voltage Application in Vacuum Reviewed
H.Kojima, N.Hayakawa, R.Nishimura, H.Okubo, H.Sato, H.Saito, Y.Noda
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 18 ( 6 ) page： 2108-2114 2011