| Presentation | 2018-03-02 Influence of Magnetic Flux Density on Blow-out Behavior of DC High Voltage Arc Tsubasa Umezawa, Toshiya Morita, Koichiro Sawa, Kiyoshi Yoshida, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Solar power generation and electric vehicles (EV) that use high current with high DC voltage are increasing. The role of electrical contacts to reliably shut off the DC power supply circuit is important in such systems. In order to extinguish the DC arc discharge, a method called "magnetic blow-out" by a magnetic field is widely used. In the experiment, the magnetic flux density was varied in the range of 1.2 to 150 mT, the source voltage was DC 100, 300, 500 V, and the current was set to 10 A constant. The opening speed of the contact is three patterns of 10, 50, 100 mm/s. And, the contact material is tungsten. Arc duration and arc energy were obtained from the voltage / current waveform and power waveform of the arc discharge. As a result, the arc duration was almost inversely proportional to the increase in magnetic flux density. Furthermore, the arc duration was reduced by 80% or more with a magnetic flux density of 10 mT. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Arc discharge / Arc duration time / Electrical contact / Break arc / Magnetic flux density / Magnetic blow / Tungsten |
| Paper # | EMD2017-59 |
| Date of Issue | 2018-02-23 (EMD) |
| Conference Information | |
| Committee | EMD |
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| Conference Date | 2018/3/2(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nippon Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yoshiteru Abe(NTT) |
| Vice Chair | |
| Secretary | (NAIST) |
| Assistant | Yoshiki Kayano(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Electromechanical Devices |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Influence of Magnetic Flux Density on Blow-out Behavior of DC High Voltage Arc |
| Sub Title (in English) | |
| Keyword(1) | Arc discharge |
| Keyword(2) | Arc duration time |
| Keyword(3) | Electrical contact |
| Keyword(4) | Break arc |
| Keyword(5) | Magnetic flux density |
| Keyword(6) | Magnetic blow |
| Keyword(7) | Tungsten |
| 1st Author's Name | Tsubasa Umezawa |
| 1st Author's Affiliation | Nippon Institute of technology(NIT) |
| 2nd Author's Name | Toshiya Morita |
| 2nd Author's Affiliation | Nippon Institute of technology(NIT) |
| 3rd Author's Name | Koichiro Sawa |
| 3rd Author's Affiliation | Nippon Institute of technology(NIT) |
| 4th Author's Name | Kiyoshi Yoshida |
| 4th Author's Affiliation | Nippon Institute of technology(NIT) |
| Date | 2018-03-02 |
| Paper # | EMD2017-59 |
| Volume (vol) | vol.117 |
| Number (no) | EMD-467 |
| Page | pp.pp.9-12(EMD), |
| #Pages | 4 |
| Date of Issue | 2018-02-23 (EMD) |