Presentations -

真空バルブ中間シールドの電界最適化自動計算における収束性の検討

鈴木啓也，加藤克巳，小島寛樹，大久保仁

平成21年度電気関係学会東海支部連合大会 

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Event date： 2009.9

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：愛知工業大学   Country：Japan  

空気中における2次ストリーマの進展と破壊特性

岩田健，吉田聡，小島寛樹，早川直樹，遠藤奎将，加藤達朗，六戸敏昭，大久保仁

平成21年電気学会基礎・材料・共通部門大会 

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Event date： 2009.9

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：静岡大学   Country：Japan  

真空中インパルス電圧印加時における微小電流の発生特性

青木圭太，安川英明，小島寛樹，本間三孝，塩入哲，大久保仁

平成21年電気学会基礎・材料・共通部門大会 

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Event date： 2009.9

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：静岡大学   Country：Japan  

Gas Pressure Dependency of Partial Discharge Activity at Electrode/Epoxy Delamination in GIS Spacer

D.A. Mansour, H. Kojima, N. Hayakawa, F. Endo, H. Okubo

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Event date： 2009.9

Language：English   Presentation type：Oral presentation (general)  

Country：Japan  

真空中固体絶縁物上正極性帯電がインパルス沿面放電の進展に与える影響

石田亜成，加藤秀紀，小島寛樹，土屋賢治，大久保仁

平成21年度電気関係学会東海支部連合大会 

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Event date： 2009.9

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：愛知工業大学   Country：Japan  

真空中Cu-Cr電極のインパルスコンディショニング過程の定量的検討

安川英明，青木圭太，小島寛樹，大久保仁，佐藤裕昌，斉藤仁，野田泰司

平成21年度電気関係学会東海支部連合大会 

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Event date： 2009.9

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：愛知工業大学   Country：Japan  

SF₆ガス中金属異物の部分放電特性に及ぼす電極間微小ギャップの影響

浅井基希，小島寛樹，早川直樹，遠藤奎将，吉田昌展，大久保仁

平成21年度電気関係学会東海支部連合大会 

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Event date： 2009.9

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：愛知工業大学   Country：Japan  

2MVA級高温超電導限流変圧器（SFCLT）YBCOコイルの限流動作特性

神足将司，小島寛樹，早川直樹，遠藤奎将，大久保仁

平成21年度電気関係学会東海支部連合大会 

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Event date： 2009.9

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：愛知工業大学   Country：Japan  

電力システムの最適保守に及ぼす需要規模の影響

鈴木陽太郎，小島寛樹，早川直樹，遠藤奎将，大久保仁

平成21年度電気関係学会東海支部連合大会 

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Event date： 2009.9

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：愛知工業大学   Country：Japan  

Leader Discharge Development and Breakdown Criteria under Non-uniform Electric Field in SF₆ International conference

H. Kojima, S. Yoshida, T. Iwata, N. Hayakawa, F. Endo, H. Okubo

16th International Symposium on High Voltage Engineering 

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Event date： 2009.8

Language：English   Presentation type：Poster presentation  

Country：South Africa  

Optimization of Asset Maintenance Strategies and Power Flow Operation Based on Condition Diagnoses International conference

F. Endo, R. Shiomi, Y. Suzuki, H. Kojima, N. Hayakawa, H. Okubo

16th International Symposium on High Voltage Engineering 

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Event date： 2009.8

Language：English   Presentation type：Oral presentation (general)  

Country：South Africa  

Automatic Calculation of Optimized Electrode Configuration in Vacuum Interrupter International conference

K. Suzuki, K. Kato, H. Kojima, H. Okubo

16th International Symposium on High Voltage Engineering 

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Event date： 2009.8

Language：English   Presentation type：Oral presentation (general)  

Country：South Africa  

HVDC機器の運転条件下における電界分布に対する絶縁物配置効果

飯塚伸介，小島寛樹，遠藤奎将，大久保仁

平成21年電気学会電力・エネルギー部門大会 

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Event date： 2009.8

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：芝浦工業大学   Country：Japan  

電力システムへの故障インパクトを考慮した開閉装置の保守最適化

鈴木陽太郎，塩見僚，小島寛樹，早川直樹，遠藤奎将，大久保仁

平成21年電気学会電力・エネルギー部門大会 

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Event date： 2009.8

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：芝浦工業大学   Country：Japan  

SF₆ガス中部分放電特性に及ぼすフロート金属異物の影響とその識別

浅井基希，小島寛樹，早川直樹，遠藤奎将，吉田昌展，内田克己，大久保仁

平成21年電気学会電力・エネルギー部門大会 

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Event date： 2009.8

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：芝浦工業大学   Country：Japan  

Optimized Asset Management of High Voltage Substations and Power Network Operation Based on Equipment Performance International conference

F. Endo, R. Shiomi, Y. Suzuki, H. Kojima, N. Hayakawa, H. Okubo

Cigré 6th Southern Africa Regional Conference and Joint Colloquium of CIGRE Study Committees A2(Transformers)-A3(High Voltage Equipment)-B3(Substations) 

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Event date： 2009.8

Language：English   Presentation type：Oral presentation (general)  

Country：South Africa  

Influence of Accumulated Surface Charges on Partial Discharge Activity at Micro Gap Delamination in Epoxy GIS Spacer International conference

D. A. Mansour, H. Kojima, N. Hayakawa, F. Endo, H. Okubo

9th International Conference on Properties and Applications of Dielectric Materials  2009.7.21  Harbin University of Science and Technology

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Event date： 2009.7

Language：English   Presentation type：Oral presentation (general)  

Venue：Harbin   Country：China  

In epoxy spacers in Gas Insulated Switchgear (GIS) under operating thermal or mechanical stresses, delamination would be initiated at electrode/epoxy interface leading to partial discharge (PD) activity. In this paper, PD activity for delamination at electrode/epoxy interface in SF6 gas is measured and analyzed to clarify the effect of accumulated charges on the epoxy surface. The delamination gap length considered in this paper is 50 mum. The moment of delamination initiation in GIS is successfully simulated by applying sudden voltage to the electrode setup. The main results show that the charge accumulation has great effect on the PD generation rate. This effect is different between negative and positive PD as a result of the difference in initial electron generation mechanism. The measurement of surface potential and the change in PD inception voltage after PD activity enable to estimate the accumulated charge polarity. Consequently, the role of charge accumulation in PD activity is proposed based on the change in local electric field inside the delamination gap.

DOI： 10.1109/ICPADM.2009.5252341

Scopus

CiNii Research

HTS Fault Current Limiting Transformer (SFCLT) International coauthorship International conference

N. Hayakawa, H. Kojima, F. Endo, H. Okubo, M. Noe

CIGRE Workshop on Test Techniques and Procedures for HTS Power Applications 

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Event date： 2009.5

Language：English   Presentation type：Symposium, workshop panel (nominated)  

Country：Japan  

Electrical Insulation Test Techniques for HTS Power Equipment International conference

H. Okubo, N. Hayakawa, F. Endo, H. Kojima

CIGRE Workshop on Test Techniques and Procedures for HTS Power Applications 

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Event date： 2009.5

Language：English   Presentation type：Symposium, workshop panel (nominated)  

Country：Japan  

名古屋大学におけるSMES研究 Invited

小島寛樹

低温工学協会第4回材料研究会 

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Event date： 2009.3

Language：Japanese   Presentation type：Oral presentation (invited, special)  

Venue：名古屋大学   Country：Japan