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Paper Abstract and Keywords
Presentation 2013-01-25 16:15
Measurement of V-I Characteristics and Extinction Characeristics of Arcs between Tungsten Electrodes
Yusuke Mishima, Keiichi Suhara (TNCT) EMD2012-101 Link to ES Tech. Rep. Archives: EMD2012-101
Abstract (in Japanese) (See Japanese page) 
(in English) As an expression of tungsten arc V-I characteristics, there is Holm’s arc V-I diagram. This diagram is applicable to tungsten arc ranging from 0.05 to 1 mm in gap length and from 1 to 3 A in arc current. However, when calculating opening contact arc in inductive circuit, we sometimes need V-I characteristics of arc longer than 1mm and lower than 1A in current. In addition, the minimum arc current 1 A, determined in Holm’s diagram as the lowest limit of arc current, does not agree with observation. Therefore, we measured V-I characteristics of tungsten arc in the gap range up to 10 mm and the current range lower than 1A, by using opening electrodes. We also investigated the arc extinction V-I characteristics in the low current range where the arc becomes unstable.
Keyword (in Japanese) (See Japanese page) 
(in English) tungsten electrodes / arc V-I characteristics / Holm's Diagram / inductive circuit / opening electrodes / extinction characteristics / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 415, EMD2012-101, pp. 21-26, Jan. 2013.
Paper # EMD2012-101 
Date of Issue 2013-01-18 (EMD) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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 EMD2012-101 Link to ES Tech. Rep. Archives: EMD2012-101

Conference Information
Committee EMD  
Conference Date 2013-01-25 - 2013-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Hitachi, Ltd., (Totsuka, Yokohama) 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMD 
Conference Code 2013-01-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Measurement of V-I Characteristics and Extinction Characeristics of Arcs between Tungsten Electrodes 
Sub Title (in English)  
Keyword(1) tungsten electrodes  
Keyword(2) arc V-I characteristics  
Keyword(3) Holm's Diagram  
Keyword(4) inductive circuit  
Keyword(5) opening electrodes  
Keyword(6) extinction characteristics  
Keyword(7)  
Keyword(8)  
1st Author's Name Yusuke Mishima  
1st Author's Affiliation Tokyo National College of Technology (TNCT)
2nd Author's Name Keiichi Suhara  
2nd Author's Affiliation Tokyo National College of Technology (TNCT)
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Speaker Author-1 
Date Time 2013-01-25 16:15:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2012-101 
Volume (vol) vol.112 
Number (no) no.415 
Page pp.21-26 
#Pages
Date of Issue 2013-01-18 (EMD) 


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