Paper Abstract and Keywords |
Presentation |
2019-03-01 14:45
Influence of current and magnetic flux density on magnetic blow-out on arc discharge at breaking of electrical contacts Mano Kenta, Koichiro Sawa, KIyoshi Yoshida (NIT) EMD2018-69 Link to ES Tech. Rep. Archives: EMD2018-69 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Recently, applications using DC high voltage are increasing. In the DC circuit, there is a method called "magnetic blow-out" which extinguishes arc discharge occurring in the electrical contacts by applying a magnetic flux. In the experiment, the current changes in the range of 1 to 30 A. The voltage E is DC 100 V, the magnetic flux density is set to 0 mT, 5 mT, and 10 mT. In addition, the breaking speed of the electrical contact is constant at 100 mm / s. The contact materials are W (tungsten) and Ag (silver). The arc duration time ta and the arc energy Ea were obtained from the arc waveform. Furthermore, the change in the Lorentz force at the magnetic flux density set from the arc current waveform and the gap length at that time was calculated. As a result, ta decreased irrespective of the current when a magnetic field was applied. In the case of 10 mT, it was found that ta increases when the current is below a certain constant current. From this, the relationship between ta and the Lorentz force was estimated. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Arc discharge / Arc duration / Electrical contact / Lorentz force / Magnetic blow-out / Arc current / Magnetic flux / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 462, EMD2018-69, pp. 53-57, March 2019. |
Paper # |
EMD2018-69 |
Date of Issue |
2019-02-22 (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) |
Download PDF |
EMD2018-69 Link to ES Tech. Rep. Archives: EMD2018-69 |
Conference Information |
Committee |
EMD |
Conference Date |
2019-03-01 - 2019-03-01 |
Place (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
EMD |
Conference Code |
2019-03-EMD |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Influence of current and magnetic flux density on magnetic blow-out on arc discharge at breaking of electrical contacts |
Sub Title (in English) |
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Keyword(1) |
Arc discharge |
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Arc duration |
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Electrical contact |
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Lorentz force |
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Magnetic blow-out |
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Arc current |
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Magnetic flux |
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1st Author's Name |
Mano Kenta |
1st Author's Affiliation |
Nippon Institute of Technology (NIT) |
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Koichiro Sawa |
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Nippon Institute of Technology (NIT) |
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KIyoshi Yoshida |
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Nippon Institute of Technology (NIT) |
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Speaker |
Author-1 |
Date Time |
2019-03-01 14:45:00 |
Presentation Time |
15 minutes |
Registration for |
EMD |
Paper # |
EMD2018-69 |
Volume (vol) |
vol.118 |
Number (no) |
no.462 |
Page |
pp.53-57 |
#Pages |
5 |
Date of Issue |
2019-02-22 (EMD) |
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