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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 82  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
EMD 2024-03-01
14:20
Chiba   Observations of break arc discharge characteristics and arc behaviors of AgSnO2 contacts in DC inductive load circuits up to DC20V
Reo Oikawa, Yuya Asari, Makoto Hasegawa (Chitose Inst. of Science and Technology) EMD2023-42
The authors’ research group has continued a series of observations of break arc behaviors and arc duration measurements ... [more] EMD2023-42
pp.19-24
EMD 2024-03-01
15:00
Chiba   Effect of magnets on arc discharge at low DC voltage
Yuki Yokohari, Ryo Watanabe, Kiyoshi Yoshida, Koichiro Sawa (NIT) EMD2023-44
In this study, we conducted experiments using a device that opens electrical contacts at a constant speed. Previous stud... [more] EMD2023-44
pp.30-35
EMD 2023-12-22
13:50
Tochigi Teikyo University Application of electron/ion emission equivalent circuit as a compass in investigation for accidents caused by arc discharge
Noboru Wakatsuki (Ishinomaki Senshu Univ.), Katsuhiro Hosoe (Administrative scrivener), Shuhei Suzuki (consultant), Yu Yonezawa (Nagoya Univ.) EMD2023-34
Electrical accidents related to arc discharge are complex phenomena. In most cases, there is no map that shows a clear p... [more] EMD2023-34
pp.13-18
LQE, OPE, CPM, EMD, R 2023-08-25
13:50
Miyagi Tohoku university
(Primary: On-site, Secondary: Online)
Hypothetic model of electron and ion emission due to an electric double layer at the interface between solid and liquid phases at electrical contacts
Noboru Wakatsuki (Ishinomaki Senshu Univ.), Katuhiro Hosoe (Administrative scrivener), Shuhei Suzuki, Yu Yonezawa (Nagoya Univ.) R2023-34 EMD2023-29 CPM2023-39 OPE2023-78 LQE2023-25
We want to analyze the current interruption phenomenon of electric contacts, that accompanies melting and arc discharge,... [more] R2023-34 EMD2023-29 CPM2023-39 OPE2023-78 LQE2023-25
pp.89-94
WPT, EMCJ, EMD
(Joint)
2023-07-21
15:00
Tokyo
(Primary: On-site, Secondary: Online)
Hypothetic model of solid/liquid interfacial electric double layer for electric contact
Noboru Wakatsuki (Ishinomaki Senshu Univ), Katuhiro Hosoe (Administrative scrivener), Shuhei Suzuki (Consultant), Yu Yonezawa (Nagoya Univ) EMD2023-12
This paper proposes an electric circuit model to analyze the physical phenomena at the electric contact during the break... [more] EMD2023-12
pp.13-18
EMD 2023-03-03
15:45
Saitama NIT and Online
(Primary: On-site, Secondary: Online)
Break arc characteristics of AgSnO2 contacts in an inductive load circuit up to DC20V
Shota Kosugi, Makoto Hasegawa (Chitose Inst. of Science and Technology) EMD2022-29
The authors’ research group has continued a series of observations of break arc behaviors and arc duration measurements ... [more] EMD2022-29
pp.46-51
EMD 2023-03-03
16:00
Saitama NIT and Online
(Primary: On-site, Secondary: Online)
Various Characteristics of Arc Discharge Generated in DC Toggle Switches
Masaya Harada, Hiroto Kanemoto, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2022-30
In this study, using a commercially available DC toggle switch, the same load conditions as in past experiments were use... [more] EMD2022-30
pp.52-57
EMD 2022-03-04
15:00
Online Online Effect of inductance and magnetic blowout on DC arc discharge when contacts opened
Yuuto Waragai, Kiyoshi Yoshida, Koichiro Sawa (NIT) EMD2021-20
DC current switching has been getting important as DC grid systems and electrical vehicles have been more popular. As we... [more] EMD2021-20
pp.31-36
EMD, R 2021-02-12
13:35
Online Online Photograph observation of 12 parallel discharge arcs generated in the atmosphere by a reliable trigger gap switch
Tomokatsu Aizawa (Tokyo Metropolitan College) R2020-34 EMD2020-25
This trigger gap switch has a switching circuit that combines multiple main electrodes and induced electric field genera... [more] R2020-34 EMD2020-25
pp.1-6
EMD 2019-12-13
15:40
Tokyo   Characteristics of break arcs blown-out in a 500VDC/10A circuit when moving range of arc spots is changed by shape of insulated silver pipes
Taiju Masuda, Junya Sekikawa (Sizuoka Univ.) EMD2019-45
Break arcs are generated and magnetically blown-out by transverse magnetic field in a 500VDC/10A resistive circuit. Silv... [more] EMD2019-45
pp.13-18
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 2019-01-18
14:40
Tokyo Kikai-Shinko-Kaikan Bldg. kV-kA class Hybrid DC Circuit Breaker using SiC-MOSFET
Shoya Kubo, Shunsuke Sato, Shungo Zen, Koichi Yasuoka (Tokyo Tech) EMD2018-50
A hybrid circuit breaker consisted of power semiconductor devices and varistor connected in parallel with an electrical ... [more] EMD2018-50
pp.11-16
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 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
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
EMCJ, EMD 2017-07-21
13:05
Tokyo Kikai-Shinko-Kaikan Bldg. Circuit simulation of a Hybrid DC Circuit Breaker consisted of electric contacts and Semiconductor switch
Kyotaro Nakayama, Shungo Zen, Koichi Yasuoka (Tokyo Inst. of Tech.) EMCJ2017-25 EMD2017-13
Recently, a hybrid DC circuit breaker consisted of metal contacts, semiconductor devices and a varistor is intensely stu... [more] EMCJ2017-25 EMD2017-13
pp.1-6
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 2017-03-03
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
 Results 1 - 20 of 82  /  [Next]  
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