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Paper Abstract and Keywords
Presentation 2021-03-08 13:45
Effect of ambient gas on break arc in AC power supply
Hiroto Takano, Kotaro Nakashima, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2020-31
Abstract (in Japanese) (See Japanese page) 
(in English) The electromagnetic contactor was opened and closed in air or in hydrogen. The arc duration ta, arc energy Ea, and arc extinction current were measured from arc waveform of the breaking arc. The power supply voltage was AC100V, 50Hz. The closed contact current Io was set at 4A, and the gas pressure was set at 1, 3 atm, and effects of the ambient gas were compared. As a result, it was confirmed that the arc duration ta in the air was not affected by gas pressure. On the other hand, in hydrogen, it became shorter when the ambient pressure was 3 atm. The arc extinction current was larger in hydrogen than in air.
Keyword (in Japanese) (See Japanese page) 
(in English) Electromagnetic contactor / Electrical Contact / Arc duration / Arc energy / Ambient Gas / Hydrogen / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 425, EMD2020-31, pp. 12-17, March 2021.
Paper # EMD2020-31 
Date of Issue 2021-03-01 (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)
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Conference Information
Committee EMD  
Conference Date 2021-03-08 - 2021-03-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Short NOTE 
Paper Information
Registration To EMD 
Conference Code 2021-03-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Effect of ambient gas on break arc 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) Ambient Gas  
Keyword(6) Hydrogen  
1st Author's Name Hiroto Takano  
1st Author's Affiliation Nippon Institute of Technology (NIT)
2nd Author's Name Kotaro Nakashima  
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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Date Time 2021-03-08 13:45:00 
Presentation Time 20 
Registration for EMD 
Paper # IEICE-EMD2020-31 
Volume (vol) IEICE-120 
Number (no) no.425 
Page pp.12-17 
#Pages IEICE-6 
Date of Issue IEICE-EMD-2021-03-01 

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