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Paper Abstract and Keywords
Presentation 2016-11-04 10:20
Commutation Phenomena and Brush Wear of DC Motor at High Speed Rotation
Masayuki Isato, Koichiro Sawa, Takahiro Ueno (NIT) EMD2016-60
Abstract (in Japanese) (See Japanese page) 
(in English) Many DC commutator motors are widely used in automobiles. In recent years, as compact and high output DC motors have been developed due to advanced technology, the faster the rotational speed is required and the commutation arc causes a high rate of wear/erosion of brush and commutator. Therefore, it is important how the motor speed influences commutation phenomena such as arc duration, residual current and erosion and wear of commutator and brush in order to achieve reliability and extensive lifespan.
In this paper waveforms of commutation voltage and current are measured at the rotation speed of 1000 to 5000 [min-1] and the relation between rotation speed and arc duration / residual current is obtained. In addition long term tests is carried out at the rotation speed of 1000 and 2000[min-1] the change of arc duration and effective commutation period is examined during the test of 20 hours. Further, brush wear is evaluated by the difference of brush length between before and after test. Consequently, it can be made clear that as the speed increases, the effective commutation period decreases and the arc duration is almost same among two speeds and is around 42[microsec].
Keyword (in Japanese) (See Japanese page) 
(in English) arc / carbon / erosion / commutation / DC motors / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 283, EMD2016-60, pp. 57-61, Nov. 2016.
Paper # EMD2016-60 
Date of Issue 2016-10-27 (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)
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Conference Information
Committee EMD  
Conference Date 2016-11-03 - 2016-11-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Awaji Yumebutai International Conference Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) International Session IS-EMD2016 
Paper Information
Registration To EMD 
Conference Code 2016-11-EMD 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Commutation Phenomena and Brush Wear of DC Motor at High Speed Rotation 
Sub Title (in English)  
Keyword(1) arc  
Keyword(2) carbon  
Keyword(3) erosion  
Keyword(4) commutation  
Keyword(5) DC motors  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Masayuki Isato  
1st Author's Affiliation Nippon Insitute of Technology (NIT)
2nd Author's Name Koichiro Sawa  
2nd Author's Affiliation Nippon Insitute of Technology (NIT)
3rd Author's Name Takahiro Ueno  
3rd Author's Affiliation Nippon Insitute of Technology (NIT)
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Speaker Author-1 
Date Time 2016-11-04 10:20:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2016-60 
Volume (vol) vol.116 
Number (no) no.283 
Page pp.57-61 
#Pages 5 
Date of Issue 2016-10-27 (EMD) 

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