| Presentation | 2019-03-01 Influence of ambient gas on various characteristics of break arc for electromagnetic contactor with AC power supply Igarashi Takahiro, Kumagai Fuuma, Kiyoshi Yoshida, Koichiro Sawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Arc discharge at break was generated in the electromagnetic contactor in the atmosphere and hydrogen. The arc duration ta, the arc energy Ea, and the contact resistance Rc during the arc discharge were measured. The power supply voltage was set to AC 100 V and the closed contact current Io was set to 10, 20, 30 A. Experimental results have examined the influence of various characteristics of break arc discharge by ambient gas of air (Air) and hydrogen (H2). As a result, in the air, the arc duration ta did not change even if Io increased. On the other hand, in H2, it was confirmed that ta becomes longer as Io is larger. The arc duration time ta was a relation of H2 < Air. From the observation of the contact surface after the experiment, the arc trace which seemed to have arc occurred in the center of contact surface in the atmosphere. It became wider when Io was large, and its surroundings were discolored to black. On the other hand, white arc discharge marks were formed on the entire contact surface in hydrogen, and black discoloration was confirmed around the surface. The contact resistance Rc was found to be smaller in hydrogen. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Electromagnetic contactor / Electrical contact / Arc duration / Arc energy / Contact resistance / Sealed gas / Atmospheric pressure |
| Paper # | EMD2018-68 |
| Date of Issue | 2019-02-22 (EMD) |
| Conference Information | |
| Committee | EMD |
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| Conference Date | 2019/3/1(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Shinichi Wada(TMC System) |
| Vice Chair | Yoshiki Kayano(Univ. of Electro-Comm.) |
| Secretary | Yoshiki Kayano(Muroran Inst. of Tech.) |
| Assistant | Yuichi Hayashi(ＮＡＩＳＴ) |
| 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 ambient gas on various characteristics of break arc for electromagnetic contactor with AC power supply |
| Sub Title (in English) | |
| Keyword(1) | Electromagnetic contactor |
| Keyword(2) | Electrical contact |
| Keyword(3) | Arc duration |
| Keyword(4) | Arc energy |
| Keyword(5) | Contact resistance |
| Keyword(6) | Sealed gas |
| Keyword(7) | Atmospheric pressure |
| 1st Author's Name | Igarashi Takahiro |
| 1st Author's Affiliation | Nippon Institute of Technology(NIT) |
| 2nd Author's Name | Kumagai Fuuma |
| 2nd Author's Affiliation | Nippon Institute of Technology(NIT) |
| 3rd Author's Name | Kiyoshi Yoshida |
| 3rd Author's Affiliation | Nippon Institute of Technology(NIT) |
| 4th Author's Name | Koichiro Sawa |
| 4th Author's Affiliation | Nippon Institute of Technology(NIT) |
| Date | 2019-03-01 |
| Paper # | EMD2018-68 |
| Volume (vol) | vol.118 |
| Number (no) | EMD-462 |
| Page | pp.pp.47-52(EMD), |
| #Pages | 6 |
| Date of Issue | 2019-02-22 (EMD) |