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Paper Abstract and Keywords
Presentation 2019-05-17 15:50
Influence of ambient gas on arc duration and energy of electromagnetic contactor in AC power supply
Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki (Fuji Electric FA Components & Systems) EMD2019-6 Link to ES Tech. Rep. Archives: EMD2019-6
Abstract (in Japanese) (See Japanese page) 
(in English) Arc discharge at break was generated in the electromagnetic contactor in the air 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, and 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 air. 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) 
(in English) Electromagnetic contactor / Electrical contact / Arc duration / Arc energy / Contact resistance / Sealed gas / hydrogen /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 41, EMD2019-6, pp. 29-34, May 2019.
Paper # EMD2019-6 
Date of Issue 2019-05-10 (EMD) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 EMD2019-6 Link to ES Tech. Rep. Archives: EMD2019-6

Conference Information
Committee EMD  
Conference Date 2019-05-17 - 2019-05-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Cyberscience Center, Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMD 
Conference Code 2019-05-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of ambient gas on arc duration and energy of electromagnetic contactor in 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) hydrogen  
1st Author's Name Kiyoshi Yoshida  
1st Author's Affiliation Nippon Institute of Technology (NIT)
2nd Author's Name Koichiro Sawa  
2nd Author's Affiliation Nippon Institute of Technology (NIT)
3rd Author's Name Kenji Suzuki  
3rd Author's Affiliation Fuji Electric FA Components & Systems Co., Ltd (Fuji Electric FA Components & Systems)
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Speaker Author-1 
Date Time 2019-05-17 15:50:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2019-6 
Volume (vol) vol.119 
Number (no) no.41 
Page pp.29-34 
Date of Issue 2019-05-10 (EMD) 

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