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Paper Abstract and Keywords
Presentation 2010-10-15 13:35
Influence of the Polarity of a Permanent Magnet embedded in an Electrical Contact to the Rotational Motion of Break Arcs
Naoya Takeshita, Junya Sekikawa (Shizuoka Univ.), Takayoshi Kubono (Prof. Emeritus of Shizuoka Univ.) EMD2010-63
Abstract (in Japanese) (See Japanese page) 
(in English) Break arcs are generated in a DC42V resistive circuit. A permanent magnet embedded in a pipe-shaped anode made by Ag. Rotational motion of break arcs driven by the permanent magnet is observed with a high-speed camera. The circuit current when the electrical contacts are closed I is changed from 5A to 21A. The starting time and frequency of rotation of break arcs is analyzed when the gap between the anode surface and the magnet surface d is set to 1-5mm. The result is compared with that of cathode. As results, the rotational frequency when periodic rotation of break arcs starts increases linearly with increase of the current. The Lorentz force at that time also increases linearly with increase of the current.
Keyword (in Japanese) (See Japanese page) 
(in English) Arc discharge / Contact erosion / Electromagnetic relay / High-speed camera / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 230, EMD2010-63, pp. 1-6, Oct. 2010.
Paper # EMD2010-63 
Date of Issue 2010-10-08 (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)
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Conference Information
Committee EMD  
Conference Date 2010-10-15 - 2010-10-15 
Place (in Japanese) (See Japanese page) 
Place (in English) NTT Musashino Research and Development Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Electromechanical Devices 
Paper Information
Registration To EMD 
Conference Code 2010-10-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of the Polarity of a Permanent Magnet embedded in an Electrical Contact to the Rotational Motion of Break Arcs 
Sub Title (in English)  
Keyword(1) Arc discharge  
Keyword(2) Contact erosion  
Keyword(3) Electromagnetic relay  
Keyword(4) High-speed camera  
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Keyword(6)  
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1st Author's Name Naoya Takeshita  
1st Author's Affiliation Shizuoka University (Shizuoka Univ.)
2nd Author's Name Junya Sekikawa  
2nd Author's Affiliation Shizuoka University (Shizuoka Univ.)
3rd Author's Name Takayoshi Kubono  
3rd Author's Affiliation Professor Emeritus of Shizuoka University (Prof. Emeritus of Shizuoka Univ.)
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Speaker Author-1 
Date Time 2010-10-15 13:35:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2010-63 
Volume (vol) vol.110 
Number (no) no.230 
Page pp.1-6 
#Pages 6 
Date of Issue 2010-10-08 (EMD) 

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