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Paper Abstract and Keywords
Presentation 2009-07-17 14:20
Rotational Speed of Break Arcs Driven by a Permanent Magnet Embedded in a Ag Electrical Contact
Junya Sekikawa (Shizuoka Univ.), Kazuyoshi Sugimoto (ANDEN Co.,Ltd), Takayoshi Kubono (Shizuoka Univ.) EMD2009-23
Abstract (in Japanese) (See Japanese page) 
(in English) Break arcs are generated in a DC42V resistive circuit. A permanent magnet is embedded in a pipe-shaped cathode. Rotational motion of the break arc driven by the permanent magnet is observed with a high-speed camera. The circuit current when the electrical contacts I are closed is changed from 5A to 21A. Rotational speed of the break arc is analyzed when the gap between the cathode surface and the magnet surface x is set to 1-5mm. The circuit current I and the gap x are changed. It is shown that the rotational speed of the break arc becomes fast for a certain arc length when the arc current and the radial magnetic field are increased. Shortening effect of the arc duration is confirmed by the rotational drive of the break arc with the permanent magnet. The maximum rotational speed is 69m/s within experimental conditions in this report when the arc length is 0.25 - 0.30mm.
Keyword (in Japanese) (See Japanese page) 
(in English) Arc discharge / Contact erosion / High-speed camera / Electromagnetic relay / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 138, EMD2009-23, pp. 13-18, July 2009.
Paper # EMD2009-23 
Date of Issue 2009-07-10 (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 EMD2009-23

Conference Information
Committee EMD  
Conference Date 2009-07-17 - 2009-07-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Chitose Arcadia Plaza 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMD 
Conference Code 2009-07-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Rotational Speed of Break Arcs Driven by a Permanent Magnet Embedded in a Ag Electrical Contact 
Sub Title (in English)  
Keyword(1) Arc discharge  
Keyword(2) Contact erosion  
Keyword(3) High-speed camera  
Keyword(4) Electromagnetic relay  
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1st Author's Name Junya Sekikawa  
1st Author's Affiliation Shizuoka University (Shizuoka Univ.)
2nd Author's Name Kazuyoshi Sugimoto  
2nd Author's Affiliation ANDEN Co.,Ltd (ANDEN Co.,Ltd)
3rd Author's Name Takayoshi Kubono  
3rd Author's Affiliation Shizuoka University (Shizuoka Univ.)
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Speaker Author-1 
Date Time 2009-07-17 14:20:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2009-23 
Volume (vol) vol.109 
Number (no) no.138 
Page pp.13-18 
#Pages 6 
Date of Issue 2009-07-10 (EMD) 

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