論文 - 早川 直樹
-
Common Insulating Properties in Insulating Materials 査読有り
S.Okabe, N.Hayakawa, H.Murase, H.Hama, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation 113 巻 ( 2 ) 頁: 327-335 2006年
-
Simulation of Electrical and Thermal Behavior of High Temperature Superconducting Fault Current Limiting Transformer (HTc-SFCLT) 査読有り
C.Kurupakorn, H.Kojima, N.Hayakawa, F.Endo, N.Kashima, S.Nagaya, M.Noe, H.Okubo
Journal of Physics: Conference Series 43 巻 頁: 950-953 2006年
-
Electrical and Thermal Characteristics of Bi2212/Ag HTS Coils for Conduction-cooled SMES 査読有り
N.Hayakawa, S.Noguchi, C.Kurupakorn, H.Kojima, F.Endo, N.Hirano, S.Nagaya, H.Okubo
Journal of Physics: Conference Series 43 巻 頁: 813-816 2006年
-
Impulse Partial Discharge Characteristics and Their Mechanisms under Non-uniform Electric Field in N2/SF6 Gas Mixtures 査読有り
N.Hayakawa, Y.Yoshitake, N.Koshino, T.Ueda, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation 12 巻 ( 5 ) 頁: 1035-1042 2005年
-
A Novel Technique for Partial Discharge and Breakdown Investigation Based on Current Pulse Waveform Analysis 査読有り
H.Okubo, N.Hayakawa
IEEE Trans. on Dielectrics and Electrical Insulation 12 巻 ( 4 ) 頁: 736-744 2005年
-
Temperature Dependence of Critical Current at 4.2K–55K of Conduction-cooled Bi2212/Ag Wires 査読有り
H.Kojima, S.Noguchi, C.Kurupakorn, N.Hayakawa, M.Goto, N.Hirano, S.Nagaya, H.Okubo
IEEE Trans. on Applied Superconductivity 15 巻 ( 2 ) 頁: 2550-2553 2005年
-
High voltage requirements and test of a 10 MVA superconducting fault current limiter 査読有り
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 15 巻 ( 2 ) 頁: 2082-2085 2005年
-
Recovery Characteristics after Current Limitation of High Temperature Superconducting Fault Current Limiting Transformer (HTc-SFCLT) 査読有り
C.Kurupakorn, H.Kojima, N.Hayakawa, M.Goto, N.Kashima, S.Nagaya, M.Noe, K.-P.Juengst, H.Okubo
IEEE Trans. on Applied Superconductivity 15 巻 ( 2 ) 頁: 1859-1862 2005年
-
Dielectric Characteristics of HTS Cables Based on Partial Discharge Measurement 査読有り
N.Hayakawa, M.Nagino, H.Kojima, M.Goto, T.Takahashi, K.Yasuda, H.Okubo
IEEE Trans. on Applied Superconductivity 15 巻 ( 2 ) 頁: 1802-1805 2005年
-
CO2ガスのインパルス比と初期電子発生特性 査読有り
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 125 巻 ( 6 ) 頁: 568-574 2005年
-
Partial Discharge Inception Characteristics of LN2/PP Laminated Paper Composite Insulation System for High Temperature Superconducting Cable 査読有り
N.Hayakawa, T.Kobayashi, M.Hazeyama, T.Takahashi, K.Yasuda, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation 12 巻 ( 1 ) 頁: 166-174 2005年
-
Partial discharge characteristics of inverter-fed motor coil samples under ac and surge voltage conditions 査読有り
N.Hayakawa, H.Okubo
IEEE Electrical Insulation Magazine 21 巻 ( 1 ) 頁: 5-10 2005年
-
Electrical Insulation Characteristics at Cryogenic Temperature for High Temperature Superconducting Cables 査読有り
H.Okubo, N.Hayakawa
KIEE International Transactions on Electrophysics and Applications 4-C 巻 ( 1 ) 頁: 15-20 2004年
-
高温超電導限流変圧器(HTc-SFCLT)の開発 査読有り
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 124 巻 ( 10 ) 頁: 1193-1199 2004年
-
Development of High Temperature Superconducting Fault Current Limiting Transformer (HTc-SFCLT) with Bi2212 Bulk Coil 査読有り
C.Kurupakorn, N.Hayakawa, H.Okubo, N.Kashima, S.Nagaya, M.Noe, K.-P.Juengst
IEEE Trans. on Applied Superconductivity 14 巻 ( 2 ) 頁: 900-903 2004年
-
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 査読有り
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 123 巻 ( 2 ) 頁: 169-174 2003年
-
Electrical Insulation Performance under Thermal and Electric Combined Stress for Resistive Superconducting Fault Current Limiters 査読有り
N.Hayakawa, M.Noe, K.-P.Juengst, H.Okubo
IEEE Trans. on Applied Superconductivity 13 巻 ( 2 ) 頁: 1996-1999 2003年
-
V-t characteristics for Partial Discharge Inception of High Temperature Superconducting Power Transmission Cables 査読有り
M.Hazeyama, N.Hayakawa, K.Matsuo, T.Masuda, H.Okubo
Physica C 372-376 巻 ( 3 ) 頁: 1551-1554 2002年
-
V-t Characteristics of Partial Discharge Inception in Liquid Nitrogen/PPLP Composite Insulation System for HTS Superconducting Cable 査読有り
H.Okubo, M.Hazeyama, N.Hayakawa, S.Honjo, T.Masuda
IEEE Trans. on Dielectrics and Electrical Insulation 9 巻 ( 6 ) 頁: 945-951 2002年
-
Impulse Partial Discharge and Breakdown Characteristics of Rod-Plane Gaps in N2/SF6 Gas Mixtures 査読有り
H.Saitoh, K.Morita, T.Kikkawa, N.Hayakawa, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation 9 巻 ( 4 ) 頁: 544-550 2002年