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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EMD | 2020-03-06 13:20 |
Chiba | CHIBA Institute of Technology Tsudanuma Campus (Cancelled but technical report was issued) |
Study on brush wear and wear of high speed rotating commutator motor Syougo Aoki, Hayate Saito, Koichiro Sawa, Takahiro Ueno (NIT)  EMD2019-60 |
Small DC motors with brushes are widely used especially in automobiles, and requested for smaller size and higher output... [more] | EMD2019-60 pp.5-8 |
| EMD | 2020-03-06 13:35 |
Chiba | CHIBA Institute of Technology Tsudanuma Campus (Cancelled but technical report was issued) |
Study of Brush Consumption and its Control by Commutation Arc of DC Motor Serina Hosoya, Ryusyo Onodera, Koichiro Sawa, Takahiro Ueno (NIT) EMD2019-61 |
[more] | EMD2019-61 pp.9-14 |
| EMD | 2020-03-06 16:05 |
Chiba | CHIBA Institute of Technology Tsudanuma Campus (Cancelled but technical report was issued) |
Production of Automatic Contact Resistance Measurement System for Electrical Contacts Tatsuya Onodera, Sho Kashiwabara, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2019-69 |
In this study, we constructed an automatic measurement system for the contact resistance of electrical contacts. This sy... [more] | EMD2019-69 pp.51-56 |
| EMD | 2020-03-06 16:20 |
Chiba | CHIBA Institute of Technology Tsudanuma Campus (Cancelled but technical report was issued) |
Influence on Various Characteristics with and without Magnet in DC Electromagnetic Contactor Akira Iwanami, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2019-70 |
An experiment was conducted on a DC electromagnetic contactor with a structure in which the arc was blown out by the mag... [more] | EMD2019-70 pp.57-60 |
| EMD | 2020-03-06 16:35 |
Chiba | CHIBA Institute of Technology Tsudanuma Campus (Cancelled but technical report was issued) |
Influence of Magnetic Flux Density and Breaking Speed on Magnetic Blowout of DC Arc Discharge Hiroki Yamauchi, Hayato Watanabe, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2019-71 |
The arc duration time ta and the arc energy Ea when a magnetic flux was applied to the electrical contact were measured.... [more] | EMD2019-71 pp.61-64 |
| EMD | 2020-03-06 16:50 |
Chiba | CHIBA Institute of Technology Tsudanuma Campus (Cancelled but technical report was issued) |
Influence of Ambient Gas on Breaking Arc Discharge of Electromagnetic contactor
-- Effect of Gas Pressure and Current -- Sota Nagase, Yoshiki Yamamoto, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2019-72 |
The electromagnetic contactor was opened and closed in air or in hydrogen. The arc duration ta, arc energy Ea, arc exti... [more] | EMD2019-72 pp.65-70 |
| EMD | 2020-01-17 14:30 |
Kanagawa | Rental hall Shonan Hiratsuka | Sliding characteristics of copper contacts by Molybdenum disulfide shot testment Tatsuro Iizuka, Yuki Kawashima, Syo Ogata, Yoshitada Watanabe, Takahiro Ueno, Koichiro Sawa (NIT) EMD2019-49 |
The electric sliding contact mechanism is a mechanism for energizing a moving object from a stationary object. It is us... [more] |
EMD2019-49 pp.7-10 |
| 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 |
|
| EMD | 2019-11-15 13:30 |
Tokyo | The University of Electro-Communications | A Study on Contact Voltage Waveform and its Relation with Deterioration Process of AgPd Brush and Au-plated Slip-ring System with Lubricant Koichiro Sawa, Yoshitada Watanabe, Takahiro Ueno (NIT), Hiroyasu Masubuchi (NIDEC SERVO) EMD2019-40 |
[more] | EMD2019-40 pp.5-10 |
| EMD | 2019-10-18 13:55 |
Ibaraki | A Method for Evaluating Degradation Phenomenon of Electrical Contacts using a Micro-Sliding Mechanism
-- Minimal Sliding Amplitudes against Input Waveforms (3) -- Shin-ichi Wada (TMC), Koichiro Sawa (NIT) EMD2019-38 |
[more] | EMD2019-38 pp.13-20 |
|
| EMD | 2019-06-14 16:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Fluctuation Components of Contact Voltage at AgPd Brush and Au-plated Slip-ring System withLlubricant II Koichiro Sawa, Yoshitada Watanabe, Takahiro Ueno (NIT), Hiroyasu Masubuchi (NIDEC SERVO) EMD2019-9 |
The authors have been investigating the deterioration process of Au-plated slip-ring and Ag-Pd brush system with lubrica... [more] | EMD2019-9 pp.13-18 |
| 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 | 2019-03-01 14:00 |
Tokyo | Contact reliability of electrical contacts by continuous make/break test of electromagnetic contactor Ikarashi Masanari, Ogaki Asuka, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2018-67 |
In this research, we conducted 5 million times of opening and closing experiments with contacts under minute load condit... [more] | EMD2018-67 pp.41-46 |
|
| EMD | 2019-03-01 14:15 |
Tokyo | Influence of ambient gas on various characteristics of break arc for electromagnetic contactor with AC power supply Igarashi Takahiro, Kumagai Fuuma, Kiyoshi Yoshida, Koichiro Sawa (NIT) EMD2018-68 |
Arc discharge at break was generated in the electromagnetic contactor in the atmosphere and hydrogen. The arc duration t... [more] | EMD2018-68 pp.47-52 |
|
| EMD | 2019-03-01 14:45 |
Tokyo | Influence of current and magnetic flux density on magnetic blow-out on arc discharge at breaking of electrical contacts Mano Kenta, Koichiro Sawa, KIyoshi Yoshida (NIT) EMD2018-69 |
Recently, applications using DC high voltage are increasing. In the DC circuit, there is a method called "magnetic blow-... [more] | EMD2018-69 pp.53-57 |
|
| EMD | 2019-03-01 15:00 |
Tokyo | Influence on various characteristics such as arc duration during continuous make/break of electromagnetic contactor Hiroki Takeuchi, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2018-70 |
By forming the contact portion in an airtight structure, it is possible to suppress the ejection of the arc discharge to... [more] | EMD2018-70 pp.59-62 |
|
| EMD | 2019-03-01 15:15 |
Tokyo | A Study on Deterioration Phenomenon of Au-plated Slip Ring for Small Electric Power Transfer Yoshitaka Yamaki, Naoki Takahashi, Kouitirou Sawa, Takahiro Ueno (NIT) EMD2018-71 |
[more] | EMD2018-71 pp.63-67 |
|
| EMD | 2019-03-01 15:30 |
Tokyo | Sliding characteristics of the intervention of molybdenum disulfide between copper contacts in high speed region and low speed region Tatsuro Iizuka, Taisuke Nakano, Yoshitada Watanabe, Takahiro Ueno, Kohichiro Sawa (NIT) EMD2018-72 |
[more] | EMD2018-72 pp.69-73 |
|
| EMD | 2019-03-01 16:00 |
Tokyo | Arc Erosion of Brush at Sliding Contacts between Cu commutator and Carbon Brush Youdai Suzuki, Kaito Niiya, Kouichiro Sawa, Takahiro Ueno (NIT) EMD2018-73 |
Compact DC motors are used for driving fuel pumps used in automobiles due to their superior cost advantages. From the re... [more] | EMD2018-73 pp.75-80 |
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