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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| CPM, ED, EID, SDM, ICD, MRIS, QIT, SCE, OME, EMD (Joint) [detail] |
2018-03-08 15:15 |
Shizuoka | Degradation Phenomenon of Electrical Contacts by using a Micro-Sliding Mechanism
-- The comparison with input waveforms concerning of minimal sliding amplitudes under some conditions 4 -- Keiji Koshida, Shin-ichi Wada (TMC), Koichiro Sawa (NIT)  EMD2017-75 MR2017-46 SCE2017-46 EID2017-48 ED2017-120 CPM2017-140 SDM2017-120 ICD2017-125 OME2017-69 |
Authors have studied degradation phenomena on electrical contacts under oscillations. In addition, they have developed a... [more] | EMD2017-75 MR2017-46 SCE2017-46 EID2017-48 ED2017-120 CPM2017-140 SDM2017-120 ICD2017-125 OME2017-69 pp.15-20 |
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| EMD | 2018-03-02 13:05 |
Saitama | Nippon Institute of Technology | Influence of Sealed Gases and Pressure on Arc Duration of Electromagnetic Contactor Ryoya Kaneko, Hiroki Funada, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2017-57 |
A electromagnetic contactor with magnets to shut off DC circuit was set in the chamber. The enclosed gases are hydrogen,... [more] | EMD2017-57 pp.1-4 |
| EMD | 2018-03-02 13:20 |
Saitama | Nippon Institute of Technology | An experiment on reliability of Auxiliary Contacts in Electromagnetic Contactor Sora Ishiwa, Kazuki Takahashi, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2017-58 |
We have carried out an open and close operation experiments to evaluate the contact reliability of the auxiliary contact... [more] | EMD2017-58 pp.5-8 |
| EMD | 2018-03-02 13:35 |
Saitama | Nippon Institute of Technology | Influence of Magnetic Flux Density on Blow-out Behavior of DC High Voltage Arc Tsubasa Umezawa, Toshiya Morita, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2017-59 |
Solar power generation and electric vehicles (EV) that use high current with high DC voltage are increasing. The role o... [more] | EMD2017-59 pp.9-12 |
| AP, WPT (Joint) |
2018-01-18 15:10 |
Nara | ATR | Revisit to Design Theory of Electrically Coupled Resonator WPT System Ikuo Awai (Ryutech) WPT2017-60 |
A new finding in an electrically coupled resonator WPT system is introduced contributing to its design. It is on the def... [more] | WPT2017-60 pp.27-30 |
| EMD | 2017-11-17 10:05 |
Tokyo | The University of Electro-Communications | A Study of a Transient Current Switch Circuit Device of DC48V/100A for Suppressing Electrical Surge and Arc Ignition with Large Inductive Loads Hiroaki Tamura, Shigeaki Shingyochi (NIDEC COPAL ELECTRONICS), Noboru Wakatsuki (Ishinomaki Senshu Univ.) EMD2017-43 |
We fabricated the TCS circuit device that could perform current interruption suppressing electrical surge and arc igniti... [more] | EMD2017-43 pp.1-6 |
| EMD | 2017-11-17 10:30 |
Tokyo | The University of Electro-Communications | A Method for Evaluating Degradation Phenomenon of Electrical Contacts using a Micro-Sliding Mechanism
-- Minimal Sliding Amplitudes against Input Waveforms (3) -- Shin-ichi Wada, Keiji Koshida (TMC), Koichiro Sawa (Nippon Inst. of Tech.) EMD2017-44 |
The authors obtaine experimental results on the minimal sliding amplitude (MSA) required to make resistances fluctuate o... [more] | EMD2017-44 pp.7-12 |
| EMD | 2017-11-17 11:10 |
Tokyo | The University of Electro-Communications | Effect of arc discharge types on various characteristics and mass change in electrodes for electromagnetic contractor Kiyoshi Yoshida, Koichiro Sawa (Nippon Inst. of Tech.), Kenji Suzuki, Koetsu Takaya (Fuji Electric FA) EMD2017-45 |
Experiments were carried out at several voltages to clarify the influence of the voltage on various characteristics, i.e... [more] | EMD2017-45 pp.13-19 |
| EMD | 2017-11-17 15:15 |
Tokyo | The University of Electro-Communications | Splitting of Break Arcs Being Magnetically Blown-out in 450VDC/20A Resistive Circuit Yu Ota, Junya Sekikawa (Shizuoka Univ.) EMD2017-51 |
Silver contacts are separated at constant speed and break arcs are generated in a resistive circuit in air. Supply volta... [more] | EMD2017-51 pp.47-52 |
| EMD | 2017-11-17 15:40 |
Tokyo | The University of Electro-Communications | Break Arcs Magnetically Blown-out in Nitrogen or Air in a DC High Voltage Resistive Circuit Akinori Ishihara, Junya Sekikawa (Shizuoka Univ.) EMD2017-52 |
Electrical contacts are separated at constant speed and break arcs are generated in nitrogen or air in a 200V-450V DC /1... [more] | EMD2017-52 pp.53-57 |
| EMD | 2017-10-20 13:45 |
Yamanashi | Kofu-shi-Shoukoukaigisyo (Kofu） | Break Arcs Magnetically Blown-out in Nitrogen in a DC High Voltage Resistive Circuit Akinori Ishihara, Junya Sekikawa (Shizuoka Univ.) EMD2017-39 |
Electrical contacts are separated at constant speed and break arcs are generated in nitrogen in a 200V-450V DC /10A res... [more] | EMD2017-39 pp.7-11 |
| EMD | 2017-05-19 14:30 |
Hokkaido | Chitose Arcadia Plaza | Various characteristics of the electromagnetic contactor when continuously make and break at below minimum arc voltage Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki, Koetsu Takaya (Fuji Electric FA) EMD2017-2 |
The electromagnetic contactor with two pairs of Ag and Ni alloy contacts was used in this experiment,. The source volta... [more] | EMD2017-2 pp.7-11 |
| EMD | 2017-05-19 15:10 |
Hokkaido | Chitose Arcadia Plaza | Shortening of duration of break arcs by high flow rate air blow Shoma Yamashita, Junya Sekikawa (Shizuoka Univ.) EMD2017-3 |
Horizontally-opposed electrical contacts are separated in a 48VDC/10A resistive circuit at contact separation speed of 1... [more] | EMD2017-3 pp.13-18 |
| EMD | 2017-05-19 15:35 |
Hokkaido | Chitose Arcadia Plaza | Shortening effect of duration of break arc by air blow and magnetic blow-out Ryuichiro Yamamura, Junya Sekikawa (Shizuoka Univ) EMD2017-4 |
In a DC high voltage circuit, Ag contacts was attached to a constant speed breaking device to generate break arcs. Suppl... [more] | EMD2017-4 pp.19-24 |
| WPT | 2017-03-06 15:50 |
Kyoto | Kyoto Univ. Uji Campus | Study on groundless electrically coupling non-contact power transfer to horizontally shifting systems Kentaro Kawabe, Yangjun Zhang (Ryukoku Univ.), Ikuo Awai (Ryutech) WPT2016-72 |
We propose a WPT system that directly connects an electrode plate to a λ/2 open spiral resonator, where power transmissi... [more] | WPT2016-72 pp.37-42 |
| EMD | 2017-03-03 13:05 |
Chiba | Influence of Break Arc on Electrode Mass Change of Electromagnetic Contactor
-- When Sourse Voltage is Less than Minimum Arc Voltage -- Syuwa Tanaka, Yuto Yamanaka, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2016-99 |
In this experiment, the electromagnetic contactor with two pairs of Ag and Ni alloy contacts was used. The source volta... [more] | EMD2016-99 pp.1-4 |
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| EMD | 2017-03-03 13:20 |
Chiba | Influence of Contact Materials and Opening velocity in DC High Voltage Arc Keisuke Kojima, Hidekazu Hirasawa, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2016-100 |
Recently, applications using DC high voltage and large current such as photovoltaic power generation and electric vehicl... [more] | EMD2016-100 pp.5-8 |
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| EMD | 2017-03-03 13:35 |
Chiba | Influence of Sealed Gas and Pressure on Arc Duration of Electromagnetic Contactor Ryosuke Takei, Masaki Yuzawa, Kiyoshi Yoshida, Koichiro Sawa (NIT) EMD2016-101 |
The electromagnetic contactor was installed in the chamber sealed with nitrogen, hydrogen, helium and clean air, and bre... [more] | EMD2016-101 pp.9-12 |
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| EMD | 2016-12-16 14:55 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Dependence of Arc Length at Arc Extinction of Break Arcs Magnetically Blown-out on Contact Material in DC High Voltage Circuit Akinori Ishihara, Junya Sekikawa (Shizuoka Univ.) EMD2016-67 |
Electrical contacts are separated at constant speed and break arcs are generated in a 200V-450V DC /10A resistive circu... [more] | EMD2016-67 pp.13-18 |
| EMD | 2016-12-16 15:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Restriction of Motion of Break Arcs Being Magnetically Blown-out by Side Surface of Metal Plates Part 2 Yu Ota, Junya Sekikawa (Shizuoka Univ.) EMD2016-68 |
Metal plate (iron or copper) is fixed on the top of the contact gap. Thickness of them is 1mm. Circular cylindrical elec... [more] | EMD2016-68 pp.19-24 |
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