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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| 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 | 2017-03-03 13:50 |
Chiba | Automatic Measurement of Charging and Discharging State of Solar Power System Yusuke Matsui, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2016-102 |
In the previous report , we used a lithium ion battery 40 Ah for solar power generation system. And the automatic measu... [more] | EMD2016-102 pp.13-16 |
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| EMD | 2017-03-03 16:20 |
Chiba | Effect of lubricant on contact resistance in sliding contact electric conduction Toru Shibata, Ryoga Hayashi, Yuki Amada, Koichiro Sawa, Takahiro Ueno (NIT) EMD2016-110 |
[more] | EMD2016-110 pp.45-48 |
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| EMD | 2017-03-03 16:35 |
Chiba | Ag Graphite Brush Wear Characteristic of Silver Content 80% and 90% in Brush-Slip Ring System Hiromi Inada, Yuta Abo, Naoki Fukuda, Koichiro Sawa, Takahiro Ueno (NIT) EMD2016-111 |
[more] | EMD2016-111 pp.49-52 |
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| EMD | 2017-03-03 16:50 |
Chiba | A Study of Brush and Commutator Wear for Automotive Fuel Pump DC Motor in the Butanol Takayuki Adachi, Hayata Kitahara, Koichiro Sawa, Takahiro Ueno (NIT) EMD2016-112 |
[more] | EMD2016-112 pp.53-56 |
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| EMD | 2016-11-03 13:30 |
Hyogo | Awaji Yumebutai International Conference Center | Molybdenum Disulfide Lubricant for Copper-copper Electrical Sliding Contacts Tomoharu Ootsuka, Yoshitada Watanabe, Koichiro Sawa, Takahiro Ueno (NIT) EMD2016-51 |
Sliding contacts are an important mechanical feature of various types of equipment including motors, electric trains, an... [more] | EMD2016-51 pp.5-9 |
| EMD | 2016-11-03 13:55 |
Hyogo | Awaji Yumebutai International Conference Center | Degradation Phenomenon of Electrical Contacts by using a Micro-Sliding Mechanism
-- The comparison with input waveforms concerning of minimal sliding amplitudes under some conditions 2 -- Shin-ichi Wada, Keiji Koshida (TMC), Koichiro Sawa (NIT) EMD2016-52 |
Authors have studied degradation phenomenon on electrical contacts under the influences of an external micro-oscillation... [more] | EMD2016-52 pp.11-16 |
| EMD | 2016-11-04 09:55 |
Hyogo | Awaji Yumebutai International Conference Center | Dynamic Characteristics of Ag Graphite Brush at Vrious Atmospheric Temperatures Naoki Fukuda, Koichiro Sawa, Takahiro Ueno, Yuta Abo, Hiromi Inada (NIT) EMD2016-59 |
Sliding contact is the process by which electrical current is transferred between stationary and moving objects. Commonl... [more] | EMD2016-59 pp.53-56 |
| EMD | 2016-11-04 10:20 |
Hyogo | Awaji Yumebutai International Conference Center | Commutation Phenomena and Brush Wear of DC Motor at High Speed Rotation Masayuki Isato, Koichiro Sawa, Takahiro Ueno (NIT) EMD2016-60 |
Many DC commutator motors are widely used in automobiles. In recent years, as compact and high output DC motors have bee... [more] | EMD2016-60 pp.57-61 |
| 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 | 2016-10-21 14:35 |
Kanagawa | Mechanical Wear and Arc-erosion of Brush and Commutator for DC Motor Driving Automotive Fuel Pump Koichiro Sawa, Yoshitada Watanabe, Takahiro Ueno (NIT) EMD2016-47 |
[more] | EMD2016-47 pp.7-12 |
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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 | 2016-03-04 13:05 |
Saitama | Sliding Characteristic of Noble Metal Slip Ring and Ag Brush at Various Atmospheric Temperatures Shota Sugiyama, Yuki Sato, Satoshi Kamitsuma, Koichiro Sawa, Yoshitada Watanabe, Takahiro Ueno (NIT) EMD2015-99 |
[more] | EMD2015-99 pp.1-4 |
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| EMD | 2016-03-04 14:05 |
Saitama | Effect of Solid Lubricant under Electrical Sliding Contacts Tomoharu Ootuka, Tomoaki Nijuri, Yoshitada Watanabe, Koichiro Sawa, Takahiro Ueno (NIT) EMD2015-102 |
[more] | EMD2015-102 pp.13-16 |
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| EMD | 2016-03-04 14:55 |
Saitama | Influence of Opening Velocity and Contact Material on Various Characteristics in Break Arc Hikaru Kanou, Hiroto Yamagishi, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2015-104 |
The experimental apparatus that is able to set opening velocity at wide-range of 1-200mm/s with an equal speed was used ... [more] | EMD2015-104 pp.21-24 |
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| EMD | 2016-03-04 15:15 |
Saitama | Influences of Make Arc on Various Characteristics and Electrode Mass Change for Electromagnetic Contactor Yuuki Takahadhi, Yuuta Higan, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2015-105 |
Experiments were carried out to clarify the influence of closed contact current on various characteristics, such as arc ... [more] | EMD2015-105 pp.25-28 |
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| 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 | 2015-11-05 14:30 |
Miyagi | Tohoku University, School of engineering, Aoba memorial hall | Electrical Sliding Contact of Au Coated Slip Ring and Ag Graphite Brush at Low Temperatures Naoki Fukuda, Koichiro Sawa, Takahiro Ueno (NIT) EMD2015-68 |
[more] | EMD2015-68 pp.7-10 |
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