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Paper Abstract and Keywords
Presentation 2018-03-02 13:35
Influence of Magnetic Flux Density on Blow-out Behavior of DC High Voltage Arc
Tsubasa Umezawa, Toshiya Morita, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2017-59
Abstract (in Japanese) (See Japanese page) 
(in English) Solar power generation and electric vehicles (EV) that use high current with high DC voltage are increasing. The role of electrical contacts to reliably shut off the DC power supply circuit is important in such systems. In order to extinguish the DC arc discharge, a method called "magnetic blow-out" by a magnetic field is widely used. In the experiment, the magnetic flux density was varied in the range of 1.2 to 150 mT, the source voltage was DC 100, 300, 500 V, and the current was set to 10 A constant. The opening speed of the contact is three patterns of 10, 50, 100 mm/s. And, the contact material is tungsten. Arc duration and arc energy were obtained from the voltage / current waveform and power waveform of the arc discharge. As a result, the arc duration was almost inversely proportional to the increase in magnetic flux density. Furthermore, the arc duration was reduced by 80% or more with a magnetic flux density of 10 mT.
Keyword (in Japanese) (See Japanese page) 
(in English) Arc discharge / Arc duration time / Electrical contact / Break arc / Magnetic flux density / Magnetic blow / Tungsten /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 467, EMD2017-59, pp. 9-12, March 2018.
Paper # EMD2017-59 
Date of Issue 2018-02-23 (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 2018-03-02 - 2018-03-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Nippon Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMD 
Conference Code 2018-03-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of Magnetic Flux Density on Blow-out Behavior of DC High Voltage Arc 
Sub Title (in English)  
Keyword(1) Arc discharge  
Keyword(2) Arc duration time  
Keyword(3) Electrical contact  
Keyword(4) Break arc  
Keyword(5) Magnetic flux density  
Keyword(6) Magnetic blow  
Keyword(7) Tungsten  
Keyword(8)  
1st Author's Name Tsubasa Umezawa  
1st Author's Affiliation Nippon Institute of technology (NIT)
2nd Author's Name Toshiya Morita  
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 2018-03-02 13:35:00 
Presentation Time 15 minutes 
Registration for EMD 
Paper # EMD2017-59 
Volume (vol) vol.117 
Number (no) no.467 
Page pp.9-12 
#Pages 4 
Date of Issue 2018-02-23 (EMD) 

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