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 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, R |
2020-02-14 14:35 |
Shizuoka |
|
Observations of break arc behaviors of AgSnO2 contacts in a DC inductive load under application of an external magnetic field Makoto Hasegawa, Seika Tokumitsu (Chitose Inst. of Science & Technology) R2019-56 EMD2019-56 |
When AgSnO2 contacts were operated to break an inductive DC load circuit up to 20V-17A with an applied external magnetic... [more] |
R2019-56 EMD2019-56 pp.13-16 |
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 |
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 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 14:15 |
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 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 |
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 |
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 |
2018-06-15 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 13:05 |
Hokkaido |
Muroran Institute of Technology |
A Wear Model of Commutator and Brush Taking Account of Arc Erosion for DC Moto Driving Automotive Fuel Pump Koichiro Sawa, Yoshitada Watanabe, Takahiro Ueno (NIT) EMD2018-1 |
A carbon flat commutator and carbon brush are widely used in a DC motor driving an automotive fuel pump. The authors hav... [more] |
EMD2018-1 pp.1-6 |