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| 講演名 | 2011-11-17 15:15 The Effect of Transverse Magnetic Field on Arcing Duration of Electrical Contact Liu Yun・Xu Guangda・○Li Zhenbiao・Zhao Laijun（Huazhong Univ. of Science and Tech.）・Makoto Hasegawa（Chitose Inst. of Science and Tech.）  EMD2011-80 |
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| 抄録 | （和） | Application of transverse magnetic field (TMF) is one of the most important ways to improve electric life and breaking capacity of DC relays. For better understanding of dependence of arc durations on transverse magnetic field, a series of experiments were conducted under an external transverse magnetic field with 12 pairs of AgSnO2 contacts in a DC 28V - 60A/30A/5A circuit, respectively. By using permanent magnets, the transverse magnetic field was obtained and the magnetic flux density at the gap center was varied from 13 to 94 mT. The results show that breaking arc duration is decreased monotonically with increases in the magnetic flux density, but making arc duration isn。ッt decreased monotonically with increases in the magnetic flux density. In addition, both of the magnetic flux density and the breaking arc duration have threshold values Bl and Tbmin, respectively, which means the breaking arc duration is almost stable with the value Tbmin even if the magnetic flux density is higher than Bl. |
| （英） | Application of transverse magnetic field (TMF) is one of the most important ways to improve electric life and breaking capacity of DC relays. For better understanding of dependence of arc durations on transverse magnetic field, a series of experiments were conducted under an external transverse magnetic field with 12 pairs of AgSnO2 contacts in a DC 28V - 60A/30A/5A circuit, respectively. By using permanent magnets, the transverse magnetic field was obtained and the magnetic flux density at the gap center was varied from 13 to 94 mT. The results show that breaking arc duration is decreased monotonically with increases in the magnetic flux density, but making arc duration isn。ッt decreased monotonically with increases in the magnetic flux density. In addition, both of the magnetic flux density and the breaking arc duration have threshold values Bl and Tbmin, respectively, which means the breaking arc duration is almost stable with the value Tbmin even if the magnetic flux density is higher than Bl. | |
| キーワード | （和） | Transverse magnetic field (TMF) / Arc duration / Relay / Contact / / / / |
| （英） | Transverse magnetic field (TMF) / Arc duration / Relay / Contact / / / / | |
| 文献情報 | 信学技報, vol. 111, no. 299, EMD2011-80, pp. 73-77, 2011年11月. | |
| 資料番号 | EMD2011-80 | |
| 発行日 | 2011-11-10 (EMD) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| 著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します．(許諾番号：10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| PDFダウンロード | EMD2011-80 |
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