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Paper Abstract and Keywords
Presentation 2010-05-21 15:55
Starting Conditions for Rotational Motion of Break Arcs Driven by a Permanent Magnet Embedded in an Electrical Contact
Naoya Takeshita, Junya Sekikawa, Takayoshi Kubono (Shizuoka Univ.) EMD2010-6 Link to ES Tech. Rep. Archives: EMD2010-6
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 cthode made by Ag, Ag/SnO2, or Ag/ZnO. Rotational motion of 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. The point starting rotation of the break arc is analyzed when the gap between the cathode surface and the magnet surface x is set to 1-5mm or contact material is changed. Lorentz force when periodic rotation starts has grown in order of Ag, Ag/SnO2, and Ag/ZnO. The arc length at that time became constant although the current is changed. However, the value has changed by materials.
Keyword (in Japanese) (See Japanese page) 
(in English) Arc discharge / Contact erosion / Electromagnetic relay / Hight-speed camera / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 51, EMD2010-6, pp. 31-36, May 2010.
Paper # EMD2010-6 
Date of Issue 2010-05-14 (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 EMD2010-6 Link to ES Tech. Rep. Archives: EMD2010-6

Conference Information
Committee EMD  
Conference Date 2010-05-21 - 2010-05-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Akita Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMD 
Conference Code 2010-05-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Starting Conditions for Rotational Motion of Break Arcs Driven by a Permanent Magnet Embedded in an Electrical Contact 
Sub Title (in English)  
Keyword(1) Arc discharge  
Keyword(2) Contact erosion  
Keyword(3) Electromagnetic relay  
Keyword(4) Hight-speed camera  
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 Shizuoka University (Shizuoka Univ.)
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Date Time 2010-05-21 15:55:00 
Presentation Time 25 
Registration for EMD 
Paper # IEICE-EMD2010-6 
Volume (vol) IEICE-110 
Number (no) no.51 
Page pp.31-36 
#Pages IEICE-6 
Date of Issue IEICE-EMD-2010-05-14 

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