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| Presentation | 2008-11-16 13:20 Electric Measurement of Melting Phenomena for Breaking Relay Contacts Noboru Wakatsuki, Nobuo Takatsu, Masahiro Oikawa (Ishinomaki Senshu Univ.)  EMD2008-96 Link to ES Tech. Rep. Archives: EMD2008-96 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Using the transient current switch circuit in parallel with the energizing switching contacts for timely control of breaking operations, the increase of contact voltage is suppressed at the last stage of the breaking of electric contacts. Breaking contact voltage Vc and current Ic of electromagnetic relays with Ag contacting electrodes were measured with 12.5～50 V and 0.1～20 A for two hinge springs (Spring constants; 2 N/mm and 0.2 N/mm). The current-decreasing process was clearly measured at the melting voltage Um. After Vc=Um, the breaking time of contact current did not depend on mechanical motion controlled by the two hinge springs and energizing power-supply voltage, but depended on the contact current. The residue of melt electrode was observed optically as a white fusion spot, with radius depending on the energizing current. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Transient current switch circuit / Melting voltage / Electromagnetic relay / Arc ignition / Electric contacts / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 296, EMD2008-96, pp. 125-128, Nov. 2008. | |
| Paper # | EMD2008-96 | |
| Date of Issue | 2008-11-08 (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 | EMD2008-96 Link to ES Tech. Rep. Archives: EMD2008-96 |
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| Conference Information | |
| Committee | EMD |
| Conference Date | 2008-11-15 - 2008-11-16 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku Bunka Gakuin University (Sendai) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | International Session on Electro-Mechanical Devices 2008 |
| Paper Information | |
| Registration To | EMD |
| Conference Code | 2008-11-EMD |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Electric Measurement of Melting Phenomena for Breaking Relay Contacts |
| Sub Title (in English) | |
| Keyword(1) | Transient current switch circuit |
| Keyword(2) | Melting voltage |
| Keyword(3) | Electromagnetic relay |
| Keyword(4) | Arc ignition |
| Keyword(5) | Electric contacts |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Noboru Wakatsuki |
| 1st Author's Affiliation | Ishinomaki Senshu University (Ishinomaki Senshu Univ.) |
| 2nd Author's Name | Nobuo Takatsu |
| 2nd Author's Affiliation | Ishinomaki Senshu University (Ishinomaki Senshu Univ.) |
| 3rd Author's Name | Masahiro Oikawa |
| 3rd Author's Affiliation | Ishinomaki Senshu University (Ishinomaki Senshu Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-11-16 13:20:00 |
| Presentation Time | 20 minutes |
| Registration for | EMD |
| Paper # | EMD2008-96 |
| Volume (vol) | vol.108 |
| Number (no) | no.296 |
| Page | pp.125-128 |
| #Pages | 4 |
| Date of Issue | 2008-11-08 (EMD) |
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