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 |
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 |
EMD |
2023-12-22 15:40 |
Tochigi |
Teikyo University |
Characteristics of Break Arcs Generated between Cu, Al and Fe Electrical Contacts in a 100-280VDC/10A Resistive Circuit Aoi Handa, Junya sekikawa (Shizuoka Univ.) EMD2023-38 |
Break arcs were generated using Cu, Al, and Fe as electrical contacts in the resistive load circuit with supply voltage ... [more] |
EMD2023-38 pp.35-40 |
MW, EMCJ, EST, IEE-EMC [detail] |
2023-10-20 09:20 |
Yamagata |
Yamagata University (Primary: On-site, Secondary: Online) |
Improvement of Functional Printed Patterns for Electric Over Stress Protection and its Performance Evaluation Fuga Horie, Takahiro Yoshida (TUS) EMCJ2023-49 MW2023-103 EST2023-76 |
Electrical overstress protection is necessary for electric equipment to prevent malfunctions and failures caused by high... [more] |
EMCJ2023-49 MW2023-103 EST2023-76 pp.72-76 |
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 |
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 |
EMCJ, EMD, WPT (Joint) |
2021-07-02 13:55 |
Online |
Online |
Comparison of discharge circuits for magnetic pulse welding using 1, 5 and 10 turn flat coils Aizawa Tomokatsu (Tokyo Metropolitan College) EMD2021-1 |
The discharge circuits for magnetic pulse welding of sheet metals using 1, 5 and 10 turn flat coils will have tens of ti... [more] |
EMD2021-1 pp.1-6 |
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 |
2020-12-04 13:05 |
Online |
Online |
Observation of arc discharges occurring between commutator and brush Simulating a DC motor by means of a high-speed camera Ryosuke Sano, Junya Sekikawa (Shizuoka Univ.) EMD2020-18 |
Observed results of arc discharges generated between the brush and commutator are reported during arc duration. The arcs... [more] |
EMD2020-18 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 |
2019-11-15 13:05 |
Tokyo |
The University of Electro-Communications |
Magnetic pulse welding method: Discharge current commutates to collision part of Al/Cu sheets Tomokatsu Aizawa (Tokyo Metropolitan College) EMD2019-39 |
In this report, magnetic pulse welding is started by rapidly flowing a damped oscillating discharge current from a capac... [more] |
EMD2019-39 pp.1-4 |
EMD |
2019-10-18 13:05 |
Ibaraki |
|
Magnetic pulse welding method commutating discharge current to collision part of Al/Cu sheets (2nd Peport) Tomokatsu Aizawa (Tokyo Metropolitan College) EMD2019-36 |
In this report, magnetic pulse welding is performed by rapidly flowing a damped-oscillating discharge current from a cap... [more] |
EMD2019-36 pp.1-6 |
EMD |
2019-06-14 16:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Magnetic pulse welding method commutating discharge current to collision part of Al/Cu sheets Tomokatsu Aizawa (Tokyo Metropolitan College) EMD2019-7 |
In this report, magnetic pulse welding is performed by rapidly flowing a discharge current from a capacitor bank to an i... [more] |
EMD2019-7 pp.1-6 |
EMD |
2019-05-17 14:00 |
Miyagi |
Cyberscience Center, Tohoku University |
Proposal of High Speed Mechanical Switch for Commutation of Discharge Current in Magnetic Pulse Welding of Sheet Metals Tomokatsu Aizawa (Tokyo Metropolitan College) EMD2019-2 |
In this report, magnetic pulse welding is done by rapidly flowing a large discharge current from a capacitor bank to an ... [more] |
EMD2019-2 pp.7-11 |
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 |
2018-11-09 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 |
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 |