| Presentation | 2015-11-06 Observation of Break Arcs Rotated by Radial Magnetic Field in a 48VDC Resistive Circuit using two high-speed cameras Jun Matsuoka, Junya Sekikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Break arcs are rotated with the radial magnetic field formed by a magnet embedded in a fixed cathode contact. The break arcs are generated in a 48VDC resistive circuit. The circuit current when the contacts are closed is 10A. The depth of the magnet varies from 1mm to 4mm to change the strength of the radial magnetic field for rotating break arcs. Images of break arcs are taken by two high-speed cameras from two directions and the rotational motion of the break arcs is observed. The rotational period of rotational motion of the break arcs is investigated. The following results are obtained. The break arcs rotate clockwise on the cathode surface seen from anode side. This rotation direction conforms to the direction of the Lorentz force that affects to the break arcs with the radial magnetic field. The rotational period gradually decreases during break operation. When the depth of magnet is larger, the rotational period becomes longer. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Arc dischargeContact erosionHigh-speed camera |
| Paper # | EMD2015-75 |
| Date of Issue | 2015-10-29 (EMD) |
| Conference Information | |
| Committee | EMD |
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| Conference Date | 2015/11/5(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku University, School of engineering, Aoba memorial hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | International Session IS-EMD2015 |
| Chair | Junya Sekikawa(Shizuoka Univ.) |
| Vice Chair | Yoshiteru Abe(NTT) |
| Secretary | Yoshiteru Abe(Sumitomo Denso) |
| Assistant | Shinichi Wada(TMC system) |
| Paper Information | |
| Registration To | Technical Committee on Electromechanical Devices |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Observation of Break Arcs Rotated by Radial Magnetic Field in a 48VDC Resistive Circuit using two high-speed cameras |
| Sub Title (in English) | |
| Keyword(1) | Arc dischargeContact erosionHigh-speed camera |
| 1st Author's Name | Jun Matsuoka |
| 1st Author's Affiliation | Shizuoka University(Shizuoka Univ.) |
| 2nd Author's Name | Junya Sekikawa |
| 2nd Author's Affiliation | Shizuoka University(Shizuoka Univ.) |
| Date | 2015-11-06 |
| Paper # | EMD2015-75 |
| Volume (vol) | vol.115 |
| Number (no) | EMD-291 |
| Page | pp.pp.47-52(EMD), |
| #Pages | 6 |
| Date of Issue | 2015-10-29 (EMD) |