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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 37  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
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
R, EMD 2022-02-10
16:00
Online Online Break arcs magnetically blown-out in a 48VDC/300A resistive circuit at constant opening speeds
Haruko Yazaki, Junya Sekikawa (Shizuoka Univ.) R2021-46 EMD2021-14
Dependences of arc length just before extinction L and contact gap at arc extinction d on contact opening speed v are st... [more] R2021-46 EMD2021-14
pp.18-23
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, 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
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
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 2019-03-01
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, 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
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 2018-05-18
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
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 2017-03-03
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
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
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
EMD, CPM, OME 2015-06-19
16:45
Tokyo Kikai-Shinko-Kaikan Bldg. An experimental study on break arc characteristics of AgSnO2 contact pairs at interruptions of DC load currents with different contact opening speeds
Makoto Hasegawa (Chitose Inst. of Science & Technology) EMD2015-19 CPM2015-29 OME2015-32
In DC load circuit conditions with a power supply voltage of DC14V, break operations of a load current in the range from... [more] EMD2015-19 CPM2015-29 OME2015-32
pp.47-50
EMD 2015-03-06
15:35
Chiba Chiba Institute of Technology Influence of Opening Velocity on Various Characteristics in Break Arc
Syogo Funawatari, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2014-119
Recently, the demand to interrupt the DC high voltage and the large-current by electric contact has increased. Experime... [more] EMD2014-119
pp.29-32
EMD 2015-01-23
13:55
Kanagawa   An experimental study on influences of contact opening speeds on break arc characteristics of AgSnO2 contact pair at interruptions of inductive DC load currents
Makoto Hasegawa, Nanami Ohkawa, Hiroya Sonobe (Chitose Inst. of Science & Technology) EMD2014-102
In a DC inductive load circuit (L=20mH) with a power supply voltage of DC14V, break operations of a load current in the ... [more] EMD2014-102
pp.7-10
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