Papers - HAYAKAWA, Naoki
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Discharge Characteristics of Composite Insulation System with Floating Electrode and Solid Insulator in Vacuum Reviewed
F.Kong, Y.Nakano, H.Kojima, N.Hayakawa, T.Kimura, M.Tsukima
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 23 ( 2 ) page： 1219-1225 2016
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Discharge Characteristics for Various Discharge Patterns under Negative Lightning Impulse Voltage in Vacuum Reviewed
F.Kong, Y.Nakano, H.Kojima, N.Hayakawa, T.Kimura, M.Tsukima
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 23 ( 2 ) page： 813-818 2016
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Fabrication and Simulation of Permittivity Graded Materials for Electric Field Grading of Gas Insulated Power Apparatus Reviewed
N.Hayakawa, J.Ishiguro, H.Kojima, K.Kato, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 23 ( 1 ) page： 547-554 2016
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Classification of Impulse Breakdown Mechanisms under Non-uniform Electric Field in Air Reviewed
H.Kojima, K.Hotta, T.Kitamura, N.Hayakawa, A.Otake, K.Kobayashi, T.Kato, T.Rokunohe H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 23 ( 1 ) page： 194-201 2016
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Analysis of Conditioning and Damaging Process in Vacuum Based on Breakdown Probability Distribution Reviewed
H.Kojima, Y.Otake, T.Takahashi, N.Hayakawa, K.Hasegawa, H.Saito, M.Sakaki
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 23 ( 1 ) page： 43-48 2016
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Control and Suppression of Impulse Surface Flashover in Vacuum Based on Discharge Development Mechanisms Reviewed
Y.Nakano, H.Kojima, K.Tsuchiya, N.Hayakawa
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 23 ( 1 ) page： 35-42 2016
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Dependence of Spark Conditioning on Breakdown Charge and Electrode Material under a Non-Uniform Electric Field Reviewed
H.Kojima, T.Takahashi, N.Hayakawa, K.Hasegawa, H.Saito, M.Sakaki
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 23 ( 5 ) page： 3224-3230 2016
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真空中の複合絶縁系における放電パターンの識別 Reviewed
孔飛，小島寛樹，木村俊則，月間満，早川直樹
電気学会論文誌A Vol. 136 ( 9 ) page： 594-602 2016
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Measurement and Evaluation of Partial Discharge Inception Voltage for Enameled Rectangular Wires under AC Voltage Reviewed
T.Wakimoto, H.Kojima, N.Hayakawa
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 23 ( 6 ) page： 3566-3574 2016
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Experimental Results of 275 kV-3 kA REBCO HTS Power Cable Reviewed
M.Yagi, J.Liu, S.Mukoyama, T.Mitsuhashi, J.Teng, N.Hayakawa, X.Wang, A.Ishiyama,
IEEE Trans. on Applied Superconductivity Vol. 25 ( 3 ) page： 5401405 2015
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Fault Current Limitation Coordination in Power Transmission System with Superconducting Fault Current Limiting Cables (SFCLC) Reviewed
H.Kojima, T.Osawa, N.Hayakawa
IEEE Trans. on Applied Superconductivity Vol. 25 ( 3 ) page： 5401904 2015
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Quench-Induced Dynamic Breakdown Characteristics of LN2 and LN2/PPLP Composite Electrical Insulation System for Superconducting Power Apparatus Reviewed
N.Hayakawa, T.Matsuoka, S.Nishimachi, H.Kojima
IEEE Trans. on Applied Superconductivity Vol. 25 ( 3 ) page： 7700304 2015
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Power Flow Control and Maintenance Strategy of Transformers in Transmission and Distribution Systems Reviewed
H.Kojima, K.Fukaya, N.Hayakawa, M.Hanai, H.Okubo
Vol. 135 ( 5 ) page： 316-321 2015
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Impulse Surface Flashover Development Associated with Transient Charging by Explosive Electron Emission in Vacuum Reviewed
Y.Nakano, H.Kojima, K.Tsuchiya, N.Hayakawa
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 22 ( 4 ) page： 2390-2397 2015
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Size Effect on Breakdown Strength in Sub-cooled Liquid Nitrogen for Superconducting Power Apparatus Reviewed
N.Hayakawa, S.Nishimachi, H.Kojima, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 22 ( 5 ) page： 2565-2571 2015
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真空中における突発的電子放出に起因する沿面フラッシオーバ進展過程の過渡帯電特性 Reviewed
中野裕介，小島寛樹，土屋賢治，早川直樹
電気学会論文誌A Vol. 134 ( 11 ) page： 578-584 2014
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Influence of longitudinal temperature distribution on current limiting function of Superconducting Fault Current Limiting Cable (SFCLC) Reviewed
H.Kojima, T.Osawa, N.Hayakawa , M.Hanai, H.Okubo
Journal of Physics: Conference Series (JPCS) Vol. 507 page： 032026 2014
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A Novel Electrical Insulating Material for 275 kV High-Voltage HTS Cable with Low Dielectric Loss Reviewed
N.Hayakawa, S.Nishimachi, O.Maruyama, T.Ohkuma, J.Liu, M.Yagi
Journal of Physics: Conference Series (JPCS) Vol. 507 page： 032021 2014
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Pre-discharge and Flashover Characteristics of Impulse Surface Discharge in Vacuum Reviewed
Y.Nakano, H.Kojima, N.Hayakawa, K.Tsuchiya, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 21 ( 1 ) page： 403-410 2014
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Technique for Discriminating the Type of PD in SF6 Gas Using the UHF Method and the PD Current with a Metallic Particle Reviewed
M.Hanai, H.Kojima, N.Hayakawa, R.Mizuno, H.Okubo
IEEE Trans. on Dielectrics and Electrical Insulation Vol. 21 ( 1 ) page： 88-95 2014