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Paper Abstract and Keywords
Presentation 2017-03-03 13:05
Influence of Break Arc on Electrode Mass Change of Electromagnetic Contactor -- When Sourse Voltage is Less than Minimum Arc Voltage --
Syuwa Tanaka, Yuto Yamanaka, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2016-99
Abstract (in Japanese) (See Japanese page) 
(in English) In this experiment, the electromagnetic contactor with two pairs of Ag and Ni alloy contacts was used. The source voltage was set to 3 V DC below the minimum arc voltage and the closed contacts current was set to 10, 20, and 30A. We examined the influence of this circuit condition and breaking / making operation on contact resistance, arc duration, arc energy, and electrode mass change. The amount of change in mass of the electrode was obtained from the electronic balance and the 3D laser microscope.
As a results, it was found that arc discharge occurs due to influence of the inductance in the circuit even under the minimum arc voltage. When source voltage was applied only breaking, the electrode mass change amount, the large difference in the two pairs of contacts had occurred. On the other hand, when voltage was applied only making, a dent locally occurred on the anode and protrusions occurred on the cathode.
Keyword (in Japanese) (See Japanese page) 
(in English) Electromagnetic contactor / Electrical contact / Arc duration / Contact resistance / Arc discharge / Ag / Ni /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 492, EMD2016-99, pp. 1-4, March 2017.
Paper # EMD2016-99 
Date of Issue 2017-02-24 (EMD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 2017-03-03 - 2017-03-03 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMD 
Conference Code 2017-03-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of Break Arc on Electrode Mass Change of Electromagnetic Contactor 
Sub Title (in English) When Sourse Voltage is Less than Minimum Arc Voltage 
Keyword(1) Electromagnetic contactor  
Keyword(2) Electrical contact  
Keyword(3) Arc duration  
Keyword(4) Contact resistance  
Keyword(5) Arc discharge  
Keyword(6) Ag  
Keyword(7) Ni  
Keyword(8)  
1st Author's Name Syuwa Tanaka  
1st Author's Affiliation Nippon Institute of Technology (NIT)
2nd Author's Name Yuto Yamanaka  
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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Speaker Author-1 
Date Time 2017-03-03 13:05:00 
Presentation Time 15 minutes 
Registration for EMD 
Paper # EMD2016-99 
Volume (vol) vol.116 
Number (no) no.492 
Page pp.1-4 
#Pages 4 
Date of Issue 2017-02-24 (EMD) 

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