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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EMD | 2023-12-22 14:50 |
Tochigi | Teikyo University | Numerical Analysis of Hole Diameter Dependence of Airflow Distribution between Electrical Contacts with an Airflow Jet Hole Koki Kameyama, Naoki Kanda, Junya Sekikawa (Shizuoka Univ.)  EMD2023-36 |
The authors proposed a method to shorten the duration of break arcs by ejecting airflow from the surface of an electrica... [more] | EMD2023-36 pp.25-29 |
| EMD | 2023-06-30 13:10 |
Hokkaido | Chitose Arcadia Plaza | Effect of position and shape of contacts on the moving characteristics and duration of break arcs blown by airflow from inside a contact Naoki Kanda, Junya Sekikawa (Shizuoka Univ.) EMD2023-1 |
In a resistive circuit with a DC power supply voltage of 100 V and a circuit current of 10 A, a silver contact pair with... [more] | EMD2023-1 pp.1-6 |
| R, EMD | 2022-02-10 15:35 |
Online | Online | Investigation by numerical simulation of flow velocity of air blowing to electrical contact gap and its effect on break arcs Takashige Okuno, Junya Sekikawa (Shizuoka Univ.) R2021-45 EMD2021-13 |
In the interruption of DC high voltage circuits, it is desirable to extinguish the arc at the opening of the contacts in... [more] | R2021-45 EMD2021-13 pp.12-17 |
| 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, 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 |
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| 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 |
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| 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 |
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| 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 | 2018-05-18 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, R | 2018-02-16 15:00 |
Mie | Sumitomo Wiring Systems | Simultaneous Observation of Break Arcs from Two Directions by High Speed Cameras when a 48VDC/270A resistive circuit is interrupted Ryuichi Takano, Junya Sekikawa (Shizuoka Univ.) R2017-64 EMD2017-56 |
Break arcs are occurred by using an experimental equipment for breaking a 48VDC/270A high-current circuit and photograph... [more] | R2017-64 EMD2017-56 pp.19-23 |
| EMD | 2016-11-03 15:50 |
Hyogo | Awaji Yumebutai International Conference Center | Experimental Equipment Including a Contact Opening Apparatus and Capacitors for High-Current Break Arcs Generated in a 48VDC/250A Resistive Circuit Ryuichi Takano, Akinori Ishihara, Junya Sekikawa (Shizuoka Univ) EMD2016-56 |
Experimental equipment including a contact opening apparatus and capacitors for high-current break arcs is reported. The... [more] | EMD2016-56 pp.35-39 |
| EMD | 2014-11-29 10:50 |
Hokkaido | Chitose Cultural Center | Moving characteristics of cathode spots of break arcs occurring between Ag and Pd electrical contacts Shingo Suzuki, Junya Sekikawa (Shizuoka Univ.) EMD2014-67 |
Break arcs are generated between Ag and Pd contacts in a DC48V and 9A resistive circuit. The behavior of the break arcs ... [more] | EMD2014-67 pp.13-17 |
| EMD | 2014-11-30 11:00 |
Hokkaido | Chitose Cultural Center | Observation and Analysis of Cathode Surfaces Being Affected by Break Arcs Masato Nakamura, Junya Sekikawa (Shizuoka Univ) EMD2014-85 |
Break arcs are generated in a DC48V and 9A resistive circuit at contact opening speed of 5mm/s. The morphology of the ca... [more] | EMD2014-85 pp.115-120 |
| EMD | 2014-01-31 14:25 |
Tokyo | Distribution of composition on Ag cathode surfaces heated after occurrence of break arcs Tomoyuki Atsumi, Junya Sekikawa (Shizuoka Univ.) EMD2013-138 |
Break arcs are generated in a DC48V and 12A resistive circuit. Composition distribution on contact surfaces eroded by br... [more] | EMD2013-138 pp.11-16 |
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| EMD | 2012-12-21 13:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Special Talk]
Arc V-I Characteristics and Their Measuring Method
-- From a Viewpoint of Applying Them on Break Arc Voltage and Current Calculation -- Keiichi Suhara (TNCT) EMD2012-91 |
Arc V-I Characteristics are necessary for calculation of voltage and current in electric circuit involving arc discharge... [more] | EMD2012-91 pp.1-6 |
| EMD | 2012-01-20 14:00 |
Kanagawa | Relationship between moving range of break arcs and radius of curvature of electrical contacts in a DC48V circuit Toru Sugiura, Junya Sekikawa, Takayoshi Kubono (Shizuoka Univ.) EMD2011-113 |
Break arc generated in a DC48V/6-24A resistive circuit using Ag contact that the radius of curvature of a contact surfa... [more] | EMD2011-113 pp.7-12 |
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| EMD | 2011-11-17 09:05 |
Akita | Akita Univ. Tegata Campus | Position and shape of break arcs driven by transverse magnetic field Tomoaki Sasaki, Junya Sekikawa, Takayoshi Kubono (Shizuoka Univ) EMD2011-67 |
Silver contacts are separated at constant speed and break arcs are generated in a DC48V and 9.6A resistive circuit. The ... [more] | EMD2011-67 pp.7-12 |
| EMD | 2011-11-17 14:40 |
Akita | Akita Univ. Tegata Campus | Dependence of Contact Resistance Distribution on Circuit Current after Occurrence of Break Arcs Youhei Yamanashi, Katsuyoshi Miyaji, Junya Sekikawa, Takayoshi Kubono (Shizuoka Univ.) EMD2011-79 |
Break arcs are generated in a DC48V and 1-6A resistive circuit. Contact surface that is exposed by the break arc, the co... [more] | EMD2011-79 pp.67-72 |
| EMD | 2010-11-11 08:30 |
Overseas | Xi'an Jiaotong University | Dependence of the Break arcs Driven by Transverse Magnetic Field on the Contact Opening Speed in a DC High-voltage Resistive Circuit Tomohiro Atsumi, Junya Sekikawa, Takayoshi Kubono (Shizuoka Univ.) EMD2010-67 |
Break arcs are generated between pure silver electrical contacts in a DC high-voltage resistive circuit. The break arc i... [more] | EMD2010-67 pp.1-4 |
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