Papers - HAYAKAWA, Naoki
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*Breakdown Characteristics of N2O Gas Mixtures for Quasiuniform Electric Field under Lightning Impulse Voltage Reviewed
H.Kojima, O.Kinoshita, N.Hayakawa, F.Endo, H.Okubo, M.Yoshida, T.Ogawa
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 14 ( 6 ) page： 1492-1497 2007
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N2O混合ガスの絶縁特性におけるシナジズム効果 Reviewed
早川直樹，木下修，小島寛樹，遠藤奎将，吉田昌展，小川達也，大久保仁
電気学会論文誌B Vol. 126 ( 11 ) page： 1164-1170 2006
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Streamer and Leader Discharge Propagation Characteristics Leading to Breakdown in Electronegative Gases Reviewed
N.Hayakawa, K.Hatta, S.Okabe, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 113 ( 4 ) page： 842-849 2006
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Impulse and ac Partial Discharge Inception and Breakdown Characteristics of LN2/Polypropylene Laminated Paper Composite Insulation System Reviewed
H.Okubo, H.Kojima, F.Endo, K.Sahara, N.Hayakawa
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 113 ( 3 ) page： 664-669 2006
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Common Insulating Properties in Insulating Materials Reviewed
S.Okabe, N.Hayakawa, H.Murase, H.Hama, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 113 ( 2 ) page： 327-335 2006
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Simulation of Electrical and Thermal Behavior of High Temperature Superconducting Fault Current Limiting Transformer (HTc-SFCLT) Reviewed
C.Kurupakorn, H.Kojima, N.Hayakawa, F.Endo, N.Kashima, S.Nagaya, M.Noe, H.Okubo
Journal of Physics: Conference Series Vol. 43 page： 950-953 2006
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Electrical and Thermal Characteristics of Bi2212/Ag HTS Coils for Conduction-cooled SMES Reviewed
N.Hayakawa, S.Noguchi, C.Kurupakorn, H.Kojima, F.Endo, N.Hirano, S.Nagaya, H.Okubo
Journal of Physics: Conference Series Vol. 43 page： 813-816 2006
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Impulse Partial Discharge Characteristics and Their Mechanisms under Non-uniform Electric Field in N2/SF6 Gas Mixtures Reviewed
N.Hayakawa, Y.Yoshitake, N.Koshino, T.Ueda, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 12 ( 5 ) page： 1035-1042 2005
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A Novel Technique for Partial Discharge and Breakdown Investigation Based on Current Pulse Waveform Analysis Reviewed
H.Okubo, N.Hayakawa
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 12 ( 4 ) page： 736-744 2005
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Temperature Dependence of Critical Current at 4.2K–55K of Conduction-cooled Bi2212/Ag Wires Reviewed
H.Kojima, S.Noguchi, C.Kurupakorn, N.Hayakawa, M.Goto, N.Hirano, S.Nagaya, H.Okubo
IEEE Trans. on Applied Superconductivity Vol. 15 ( 2 ) page： 2550-2553 2005
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High voltage requirements and test of a 10 MVA superconducting fault current limiter Reviewed
M.Noe, K.-P.Juengst, S.Elschner, J.Bock, F.Breuer, R.Kreutz, M.Kleimaier, K.-H.Weck, N. Hayakawa
IEEE Trans. on Applied Superconductivity Vol. 15 ( 2 ) page： 2082-2085 2005
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Recovery Characteristics after Current Limitation of High Temperature Superconducting Fault Current Limiting Transformer (HTc-SFCLT) Reviewed
C.Kurupakorn, H.Kojima, N.Hayakawa, M.Goto, N.Kashima, S.Nagaya, M.Noe, K.-P.Juengst, H.Okubo
IEEE Trans. on Applied Superconductivity Vol. 15 ( 2 ) page： 1859-1862 2005
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Dielectric Characteristics of HTS Cables Based on Partial Discharge Measurement Reviewed
N.Hayakawa, M.Nagino, H.Kojima, M.Goto, T.Takahashi, K.Yasuda, H.Okubo
IEEE Trans. on Applied Superconductivity Vol. 15 ( 2 ) page： 1802-1805 2005
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CO2ガスのインパルス比と初期電子発生特性 Reviewed
越野尚人，木下修，早川直樹，五島久司，岡部成光，森井浩，大久保仁
電気学会論文誌B Vol. 125 ( 6 ) page： 568-574 2005
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Partial Discharge Inception Characteristics of LN2/PP Laminated Paper Composite Insulation System for High Temperature Superconducting Cable Reviewed
N.Hayakawa, T.Kobayashi, M.Hazeyama, T.Takahashi, K.Yasuda, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 12 ( 1 ) page： 166-174 2005
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Partial discharge characteristics of inverter-fed motor coil samples under ac and surge voltage conditions Reviewed
N.Hayakawa, H.Okubo
IEEE Electrical Insulation Magazine Vol. 21 ( 1 ) page： 5-10 2005
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Electrical Insulation Characteristics at Cryogenic Temperature for High Temperature Superconducting Cables Reviewed
H.Okubo, N.Hayakawa
KIEE International Transactions on Electrophysics and Applications Vol. 4-C ( 1 ) page： 15-20 2004
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高温超電導限流変圧器（HTc-SFCLT）の開発 Reviewed
クルパコン チャチャヴァン，早川直樹，鹿島直二，長屋重夫，大久保仁
電気学会論文誌B Vol. 124 ( 10 ) page： 1193-1199 2004
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Development of High Temperature Superconducting Fault Current Limiting Transformer (HTc-SFCLT) with Bi2212 Bulk Coil Reviewed
C.Kurupakorn, N.Hayakawa, H.Okubo, N.Kashima, S.Nagaya, M.Noe, K.-P.Juengst
IEEE Trans. on Applied Superconductivity Vol. 14 ( 2 ) page： 900-903 2004
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棒－平板電極における空気および窒素ガス中インパルス部分放電および絶縁破壊特性 Reviewed
斉藤 仁，森田啓一，吉川隆司，早川直樹，大久保仁
電気学会論文誌B Vol. 123 ( 2 ) page： 169-174 2003