Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
EMD |
2020-01-17 15:35 |
Kanagawa |
Rental hall Shonan Hiratsuka |
Arc movement observation of DC inductive break arcs of AgSnO2 contacts up to 20V-17A under external magnetic field application Makoto Hasegawa, Seika Tokumitsu (Chitose Inst. of Sci.&Tech.) EMD2019-51 |
AgSnO2 contacts were operated to break an inductive DC load circuit of 14V-7A, 14V-12A, 20V-7A, or 20V-17A with an appli... [more] |
EMD2019-51 pp.17-21 |
EMD |
2019-12-13 14:35 |
Tokyo |
|
Dependence of arc length just before arc extinction on magnetic flux density when break arcs are blown-out in a 48VDC/50A-200A resistive circuit Kenshi Hamamoto, Junya Sekikawa (Shizuoka Univ.) EMD2019-43 |
Break arcs were generated in a 48VDC resistive circuit and blown-out by transverse magnetic field. Circuit current when ... [more] |
EMD2019-43 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 |
2019-12-13 16:30 |
Tokyo |
|
Arc energy calculation in re-striking phenomena in break operations of AgSnO2 contacts in inductive DC load conditions up to 20V-17A Makoto Hasegawa, Seika Tokumitsu (Chitose Inst. of Sci.&Tech.) EMD2019-47 |
AgSnO2 contacts were operated to break an inductive DC load circuit of 14V-7A, 14V-12A, 20V-7A, or 20V-17A with an appli... [more] |
EMD2019-47 pp.25-30 |
EMD |
2019-05-17 13:35 |
Miyagi |
Cyberscience Center, Tohoku University |
Non-Arcing Circuit Breaking Phenomena in Electrical Contacts due to Dark Bridge Hiroyuki Ishida (TBGU) EMD2019-1 |
In this paper, experimental data of non-arcing circuit breaking phenomena in electrical contacts are presented. A dark b... [more] |
EMD2019-1 pp.1-6 |
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 10:35 |
Tokyo |
|
A study in influences of external magnetic field on break arc characteristics of AgSnO2 contacts in a DC inductive load circuit up to 20V-17A up to 20V-17A Seika Tokumitsu, Makoto Hasegawa (Chitose Inst. of Science & Technology) EMD2018-59 |
For the purpose of investigating influences of application of an external magnetic field on shortenings of break arc dur... [more] |
EMD2018-59 pp.1-6 |
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 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 |
EMD, R |
2019-02-15 13:30 |
Osaka |
|
Influence of width of magnets on shape of break arcs magnetically blown-out in a 500VDC/10A resistive circuit Yuta Kaneko, Sekikawa Junya (Shizuoka Univ.) R2018-53 EMD2018-54 |
Silver electrical contacts are separated at constant opening speed in a 500VDC resistive circuit. Break arcs are extingu... [more] |
R2018-53 EMD2018-54 pp.7-12 |
EMD |
2019-01-18 15:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Influences of contact opening speeds and external magnetic field on shortening of break arc durations of AgSnO2 contacts in a DC inductive load circuit up to 20V-17A Seika Tokumitsu, Makoto Hasegawa (Chitose Inst. of Science & Technology) EMD2018-52 |
In a DC inductive (L=5.7mH) load circuit, a AgSnO2 contact pair with applied external magnetic field of about 120mT was ... [more] |
EMD2018-52 pp.23-28 |
EMD |
2018-11-09 13:35 |
Tokyo |
The University of Electro-Communications |
Analysis of Arc Length Just before Arc Extinction Generated in a 500VDC/10A Resistive Circuit by Means of Observation from Two Directions Ryuichiro Yamamura, Junya Sekikawa (Shizuoka Univ) EMD2018-41 |
The experimental circuit is the resistive load resistor with supply voltage of 500 VDC/10A, and the material contacts i... [more] |
EMD2018-41 pp.1-5 |
EMD |
2018-11-09 14:00 |
Tokyo |
The University of Electro-Communications |
Analysis of Length of Break Arcs Magnetically Blown-out just before Arc Extinction Occurring in a 48VDC/50-200A Resistive Circuit Kenshi Hamamoto, Junya Sekikawa (Shizuoka Univ.) EMD2018-42 |
Break arcs are generated in a 48VDC/50-200A resistive circuit and blown-out by transverse magnetic field. The magnetic f... [more] |
EMD2018-42 pp.7-12 |
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 |
2018-11-09 15:05 |
Tokyo |
The University of Electro-Communications |
Evolution of contact surface of closed Cu rivets carrying large current Xue Zhou, Kai Bo, Guofu Zhai (Harbin Inst. Tech) EMD2018-44 |
The mechanism of contact surface of closed Cu rivets are significant to the static welding caused by carrying large curr... [more] |
EMD2018-44 pp.21-25 |
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 |
2018-05-18 15:30 |
Hokkaido |
Muroran Institute of Technology |
Analysis of time evolution of length of break arcs occurring in a 48VDC/150A resistive circuit Kenshi Hamamoto, Junya Sekikawa (Shizuoka Univ.) EMD2018-6 |
Silver electrical contacts are separated using a high-speed contact opening device to generate break arcs in a DC resist... [more] |
EMD2018-6 pp.27-31 |