Faculty Profiles - KOJIMA Hiroki

Presentations -

Division display 701 - 720 of about 805 ／ All the affair displays >>

Thermal Runaway Characteristics of Bi2212 Coil for Conduction-cooled SMES International conference

H. Kojima, N. Hayakawa, S. Noguchi, F. Endo, H. Okubo, N. Hirano, S. Nagaya

Applied Superconductivity Conference

Electrical Insulation Characteristics of HTS Cables with Quench-induced Thermal Stress under High-Voltage Condition International conference

N. Hayakawa, S. Ueyama, H. Kojima, F. Endo, H. Okubo, T. Masuda, M. Hirose

Applied Superconductivity Conference

High-Tc Superconducting Fault Current Limiting Transformer (HTc-SFCLT) with 2G Coated Conductors International coauthorship International conference

H. Okubo, C. Kurupakorn, S. Ito, H. Kojima, N. Hayakawa, F. Endo, M. Noe

Applied Superconductivity Conference

A study on thermal runaway detection and monitoring of HTS coil for conduction-cooled SMES

H. Kojima, S. Noguchi, N. Hayakawa, F. Endo, N. Hirano, S. Nagaya, H. Okubo

2006.5.15

Current Limiting Characteristics of Coated Conductor Tapes for High Temperature Superconducting Fault Current Limiting Transformer (HTc-SFCLT)

N. Hayakawa, C. Kurupakorn, S. Ito, H. Kojima, F. Endo, H. Okubo

2006.5.15

N₂O/CO₂/N₂混合ガスの準平等電界下における絶縁破壊特性

木下修，太田吉彦，小島寛樹，早川直樹，遠藤奎将，吉田昌展，小川達也，大久保仁

平成18年電気学会全国大会

伝導冷却SMES用Bi2212/Agコイルにおける熱暴走特性と熱伝導解析

野口真希，中野俊一，小島寛樹，早川直樹，遠藤奎将，平野直樹，長屋重夫，大久保仁

平成18年電気学会全国大会

N₂/SF₆混合ガス中における部分放電発光スペクトルの高速時間分解測定

太田吉彦，木下修，小島寛樹，早川直樹，遠藤奎将，大久保仁，吉田昌展，小川達也

平成18年電気学会全国大会

高温超電導限流変圧器(HTc-SFCLT)用DyBCO超電導テープの限流特性

クルパコンチャチャヴァン，伊藤智志，小島寛樹，早川直樹，遠藤奎将，大久保仁

平成18年電気学会全国大会

高温超電導ケーブルの液体窒素/積層テープ複合絶縁構成における部分放電および絶縁破壊特性

佐原賢吾，小島寛樹，早川直樹，遠藤奎将，大久保仁

平成18年電気学会全国大会

Synergy Effect in Electrical Insulation Characteristics of N₂O Gas Mixtures

O. Kinoshita, H. Kojima, N. Hayakawa, F. Endo, M. Yoshida, T. Ogawa, H. Okubo

2006.1.26

N₂OガスおよびN₂O混合ガスの絶縁特性

木下修，小島寛樹，早川直樹，遠藤奎将，吉田昌展，小川達也，大久保仁

2005年放電学会年次大会

固体およびガス中部分放電における部分放電電流パルス波形解析(PD-CPWA)の適用

杉森康啓，小島寛樹，早川直樹，遠藤奎将，大久保仁

2005年放電学会年次大会

高温超電導ケーブルの積層テープ絶縁構成における部分放電開始・進展および絶縁破壊特性

佐原賢吾，小島寛樹，早川直樹，遠藤奎将，大久保仁

2005年放電学会年次大会

Partial Discharge Inception and Breakdown Characteristics of LN₂/Polypropylene Laminated Paper Composite Insulation System for HTS Cables International conference

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

2005 IEEE Conference on Electrical Insulation and Dielectric Phenomena 2005.10 IEEE Dielectrics and Electrical Insulation Society

Event date： 2005.10

Language：English Presentation type：Poster presentation

Venue：Nashville Country：United States

A novel technique for partial discharge (PD) measurement and analysis (PD-CPWA: PD Current Pulse Waveform Analysis) is developed and introduced in this paper. The purpose of PD-CPWA is to elucidate PD mechanisms and physics in electrical insulating materials, focusing on the PD current pulse waveform and its time transition from PD inception to breakdown (BD). In this paper, PD-CPWA was applied to liquid nitrogen / polypropylene laminated paper composite insulation system for high temperature superconducting cables, and PD inception and propagation characteristics were obtained. Experimental results revealed that PD inception at the lower stress would mainly originated from micro gaps between PP laminated paper layers, and then PD activity could be developed also in butt gaps at the higher stress, and finally leading to BD. © 2005 IEEE.

DOI： 10.1109/CEIDP.2005.1560692

Scopus

Other Link： https://www.webofscience.com/wos/woscc/full-record/WOS:000235927000086

CO₂ガスおよびSF₆ガス中における固体絶縁物上金属異物による部分放電特性

杉森康啓，早川直樹，小島寛樹，遠藤奎将，大久保仁

平成17年度電気関係学会東海支部連合大会