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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EMD | 2020-07-17 15:00 |
Hokkaido | Chitose-Arcadia-Plaza | Production of automatic measurement system for contact resistance and its measurement results
-- Contact resistance when switching 1 million times under small load condition -- Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki (Fuji FA Comp. & Sys.)  EMD2020-6 |
In this study, we constructed an automatic measurement system for the contact resistance of electrical contacts. This sy... [more] | EMD2020-6 pp.17-22 |
| EMD | 2020-01-17 14:55 |
Kanagawa | Rental hall Shonan Hiratsuka | Influence of Ambient Gas and Pressure on Break Arc Characteristics in Alternating Current Yoshiki Yamamoto, Sota Nagase, Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki (Fuji Electric FA Components & System) EMD2019-50 |
Arc discharge at break was generated in the electromagnetic contactor in the air and hydrogen. The arc duration ta, the ... [more] | EMD2019-50 pp.11-16 |
| EMD | 2019-12-13 15:00 |
Tokyo | Influence of load current and breaking velocity on arc discharge at breaking of electrical contacts Koichiro Sawa, Kiyoshi Yoshida (NIT), Kenji Suzuki (Fuji Electric) EMD2019-44 |
[more] | EMD2019-44 pp.7-12 |
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| EMD | 2019-05-17 15:50 |
Miyagi | Cyberscience Center, Tohoku University | Influence of ambient gas on arc duration and energy of electromagnetic contactor in AC power supply Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki (Fuji Electric FA Components & Systems) EMD2019-6 |
Arc discharge at break was generated in the electromagnetic contactor in the air and hydrogen. The arc duration ta, the ... [more] | EMD2019-6 pp.29-34 |
| EMD, R | 2019-02-15 13:05 |
Osaka | A Summary of 29th International Conference on Electrical Contacts and 64th IEEE Holm Conference on Electrical Contacts Koichiro Sawa, Kiyoshi Yoshida, Takahiro Ueno (NIT), Kenji Suzuki (Fuji Electric) R2018-52 EMD2018-53 |
[more] | R2018-52 EMD2018-53 pp.1-6 |
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| EMD | 2018-11-09 14:25 |
Tokyo | The University of Electro-Communications | Characteristics of arc duration at breaking contacts for low DC current with magnetic blow-out effect Kiyoshi Yoshida, Kenta Mano, Koichiro Sawa (NIT), Kenji Suzuki (Fuji Electric FA Components & Systems) EMD2018-43 |
It is well-known that magnetic blow-out is an very useful method to extinguish quickly arc discharge at interrupting DC ... [more] | EMD2018-43 pp.13-19 |
| MRIS, ITE-MMS | 2018-10-18 16:10 |
Osaka | Osaka University | High transport property of microwave in heat-driven magnetic tunnel junction Yuma Yamada (Osaka Univ.), Minori Goto (Osaka Univ./CSRN-Osaka), Takekazu Yamane, Naomichi Degawa, Tuyoshi Suzuki, Atsushi Shimura, Susumu Aoki, Junichiro Urabe, Shinji Hara (TDK), Shinji Miwa (Osaka Univ. /Univ. of Tokyo /CSRN-Osaka), Suzuki Yoshishige (Osaka Univ. /CSRN-Osaka) |
[more] | |
| EMD | 2018-10-05 15:10 |
Tokyo | Fuji Electric (TOKYO: Osaki East Tower 23F) | Characteristics of arc duration at breaking contacts for low DC current with magnetic blow-out effect. Kenta Mano, Kiyosi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki (Fuji Electric FA Components & Systems) EMD2018-39 |
[more] | EMD2018-39 pp.13-18 |
| EMD | 2018-06-15 15:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Effect of circuit conditions on various characteristics such as molten metal bridge and arc discharge of auxiliary contact for electromagnetic contactor Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki (Fuji Electric FA Components & Systems) EMD2018-11 |
We have carried out an open and close operation experiments to evaluate the contact reliability of the auxiliary contact... [more] | EMD2018-11 pp.19-23 |
| EMD | 2018-05-18 13:30 |
Hokkaido | Muroran Institute of Technology | Influence of Magnetic Flux Density and Breaking Velocity and Source Voltage on Magnetic Blow-out Behavior of DC High Voltage Arc Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki (Fuji Electric FA Components & Systems) EMD2018-2 |
Recently, the applications for make and break DC power supply circuits such as solar power generation and electric vehic... [more] | EMD2018-2 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 | 2017-05-19 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 | 2016-10-21 14:05 |
Kanagawa | Comparison of electrical contact material on breaking characteristics of arc discharge at DC high voltage
-- Experimental results from DC200 to 500V of various contacts materials -- Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki, Koetsu Takaya (Fuji Electric FA Comp & Sys) EMD2016-46 |
[more] | EMD2016-46 pp.1-5 |
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| EMD | 2016-05-20 14:50 |
Hokkaido | Chitose Arcadia Plaza | Influence of electrical contact material on breaking characteristics of arc discharge at DC high voltage
-- Experimental results from DC200 to 500V of various materials -- Kiyoshi Yoshida, Koichiro Sawa, Hikaru Kanou, Hiroto Yamagishi (NIT), Kenji Suzuki, Koetsu Takaya (Fuji FA Comp.& Sys.) EMD2016-4 |
The experimental apparatus that is able to set opening velocity at wide-range of 1-200mm/s with an equal speed was used ... [more] | EMD2016-4 pp.19-24 |
| EMD | 2015-11-05 14:05 |
Miyagi | Tohoku University, School of engineering, Aoba memorial hall | Various Characteristics of Electromagnetic Contactor with Make Arc
-- Influence of Closed Contacts Current -- Shu Shimotsuma, Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki, Koetsu Takaya (Fuji FA Comp. & systems) EMD2015-67 |
Experiments at several load currents have been carried out to clarify the various characteristics of AgNi contacts with ... [more] | EMD2015-67 pp.1-6 |
| EMD | 2015-10-02 16:00 |
Saitama | Fuji Electric FA Components & SystemCo.,Ltd. | An experiment concerning influence of surrounding gases and their pressure on various characteristics of electrical contact Xuebo Dong, Koichiro Sawa, Kiyoshi Yoshida (NIT), Kenji Suzuki, Koetsu Takaya (Fuji FA Comp. & systems) EMD2015-64 |
[more] | EMD2015-64 pp.25-30 |
| EMD | 2015-05-15 14:00 |
Akita | Akita University Tegata Campus | Influence of Current on Electrode Mass Change of AgNi Contacts for Electromagnetic Contactor
-- Various characteristics of contactor with only break arc -- Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki, Hideki Daijima, Koetsu Takaya (Fuji Elec. FA&Sys.) EMD2015-2 |
Experiments were carried out to clarify the influence of closed contact current on various characteristics, such as arc ... [more] | EMD2015-2 pp.7-12 |
| EMD | 2014-12-19 15:35 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Influence of Opening Velocity on Characteristics of Break Arc Extinction
-- An experimental results for DC200V, Ag contacts -- Kiyoshi Yoshida, Koichiro Sawa, Syogo Funawatari (NIT), Kenji Suzuki, Koetsu Takaya (Fuji Electric) EMD2014-98 |
Recently, the demand to cut the DC high voltage and the heavy-current by electric contact has risen. Experimental appar... [more] | EMD2014-98 pp.19-24 |
| EMD | 2013-05-17 15:30 |
Hokkaido | Chitose Arcadia Plaza | Various characteristics of Cu system contacts for electromagnetic contactors
-- Arc duration and resistance of Cu and CuCr contacts -- Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki, Hideki Daijima, Kouetsu Takaya (Fuji Electric FA Components & Systems) EMD2013-5 |
Experiments were carried out in AgNi contacts to clarify the various characteristics, arc duration, contact resistance, ... [more] | EMD2013-5 pp.23-28 |
| EMD | 2012-11-30 14:50 |
Chiba | Chiba Institute of Technology | Relation between Electrode Mass Change and Arc Energy of AgNi Contacts for Electromagnetic Contactors Kiyoshi Yoshida, Koichiro Sawa (Nippon Inst. of Tech.), Kenji Suzuki, Hideki Daijima, Koetsu Takaya (Fuji Electric) EMD2012-71 |
Experiments were carried out at several voltages to clarify the influence of the voltage on various characteristics, i.e... [more] | EMD2012-71 pp.43-48 |
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