| Presentation | 2022-02-10 Break arcs magnetically blown-out in a 48VDC/300A resistive circuit at constant opening speeds Haruko Yazaki, Junya Sekikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Dependences of arc length just before extinction L and contact gap at arc extinction d on contact opening speed v are studied for break arcs generated in a 48VDC resistive circuit and blown-out by transverse magnetic field. Circuit current when electrical contacts were closed I0 was changed from 50A to 300A. The opening speed v is varied over a wide range from 0.05 to 0.5m/s. Magnetic flux density Bx were changed to 5 to 100mT. Following results were obtained. For each I0 and v, The L decreased with increasing the Bx. For each Bx, The L was almost constant with increasing the v for each current I0 when the I0 was lower than 200A. However, the L became shorter when the v was 0.5m/s at I0=200A and 300A.When v=0.5m/s, For each Bx, the L tended to increase with increasing the I0. However, the L was almost constant when the Bx was 50mT and 100mT at I0=200A and 300A. For each I0 and v, The d decreased with increasing the Bx. For each Bx, The d was almost constant with increasing the v when the I0 was lower than 200A.When I0=200A and 300A, the d tended to become longer when the v was slower.When v=0.5m/s, For each Bx, the d tended to increase with increasing the I0. However, the d was almost constant at I0=50A and 100A. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Break arc / Electrical contacts / High-speed camera |
| Paper # | R2021-46,EMD2021-14 |
| Date of Issue | 2022-02-03 (R, EMD) |
| Conference Information | |
| Committee | R / EMD |
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| Conference Date | 2022/2/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tadashi Dohi(Hiroshima Univ.) / Yoshiki Kayano(Univ. of Electro-Comm.) |
| Vice Chair | Yasushi Kadota(Ricoh) |
| Secretary | Yasushi Kadota(Hiroshima Univ.) / (Kansai Univ.) |
| Assistant | Shinji Yokogawa(Univ. of Electro-Comm.) / Takahide Yoshikawa(Fujitsu Lab.) / Takenori Sakumura(Housei Univ.) / Yuichi Hayashi(ＮＡＩＳＴ) / Kazuaki Miyanaga(Fujitsu Component) |
| Paper Information | |
| Registration To | Technical Committee on Reliability / 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) | Break arcs magnetically blown-out in a 48VDC/300A resistive circuit at constant opening speeds |
| Sub Title (in English) | |
| Keyword(1) | Break arc |
| Keyword(2) | Electrical contacts |
| Keyword(3) | High-speed camera |
| 1st Author's Name | Haruko Yazaki |
| 1st Author's Affiliation | Shizuoka University(Shizuoka Univ.) |
| 2nd Author's Name | Junya Sekikawa |
| 2nd Author's Affiliation | Shizuoka University(Shizuoka Univ.) |
| Date | 2022-02-10 |
| Paper # | R2021-46,EMD2021-14 |
| Volume (vol) | vol.121 |
| Number (no) | R-368,EMD-369 |
| Page | pp.pp.18-23(R), pp.18-23(EMD), |
| #Pages | 6 |
| Date of Issue | 2022-02-03 (R, EMD) |