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| Presentation | 2018-03-02 13:20 An experiment on reliability of Auxiliary Contacts in Electromagnetic Contactor Sora Ishiwa, Kazuki Takahashi, Koichiro Sawa, Kiyoshi Yoshida (NIT)  EMD2017-58 Link to ES Tech. Rep. Archives: EMD2017-58 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have carried out an open and close operation experiments to evaluate the contact reliability of the auxiliary contacts of the electromagnetic contactor. The influence of the circuit conditions and the number of operations on the contact resistance Rc, the arc duration time ta, the molten metal bridge time tb and the arc energy Ea was experimented. The contact surface after the experiment was observed with a 3D laser microscope. As a result, arc discharge occurred in the circuit including the inductance even at DC10V and 1A, and the contact shape was affected. Moreover, from the operation test of 1 million times under the small load condition (DC3V,3mA), it became clear that contact reliability is very high. Because the value of Rc was low and stable. From the surface observation, the transition of the material could not be confirmed. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Electromagnetic contactor / Electrical contact / Auxiliary contact / Contact resistance / Arc discharge / Contact reliability / Arc energy / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 467, EMD2017-58, pp. 5-8, March 2018. | |
| Paper # | EMD2017-58 | |
| Date of Issue | 2018-02-23 (EMD) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | EMD2017-58 Link to ES Tech. Rep. Archives: EMD2017-58 |
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| Conference Information | |
| Committee | EMD |
| Conference Date | 2018-03-02 - 2018-03-02 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nippon Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EMD |
| Conference Code | 2018-03-EMD |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An experiment on reliability of Auxiliary Contacts in Electromagnetic Contactor |
| Sub Title (in English) | |
| Keyword(1) | Electromagnetic contactor |
| Keyword(2) | Electrical contact |
| Keyword(3) | Auxiliary contact |
| Keyword(4) | Contact resistance |
| Keyword(5) | Arc discharge |
| Keyword(6) | Contact reliability |
| Keyword(7) | Arc energy |
| Keyword(8) | |
| 1st Author's Name | Sora Ishiwa |
| 1st Author's Affiliation | Nippon Institute of technology (NIT) |
| 2nd Author's Name | Kazuki Takahashi |
| 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) |
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| Speaker | Author-1 |
| Date Time | 2018-03-02 13:20:00 |
| Presentation Time | 15 minutes |
| Registration for | EMD |
| Paper # | EMD2017-58 |
| Volume (vol) | vol.117 |
| Number (no) | no.467 |
| Page | pp.5-8 |
| #Pages | 4 |
| Date of Issue | 2018-02-23 (EMD) |
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