NDLI: Dissymmetry in D-C Rotating Electric Machines

Content Provider	IEEE Xplore Digital Library
Author	Diehl, J.E.
Copyright Year	1963
Abstract	A new technique for detecting dissymmetries built or developed in rotating electric machines is introduced. It is presented with the intent of interesting machine manufacturers to investigate the ideas developed and the degree of practical advances that may be realized by measuring, analyzing, and minimizing detrimental nonuniformities found in such rotating devices. The method promises a simple and more accurate test and final machine adjustment tool. Heretofore unsuspected causes of harmful effects are shown to be mechanical, magnetic, and electrical machine unbalances. The internal electric transients revealed throw new light on machine sizes, efficiencies, radio interference, carbon brush evaluating techniques, and application, as well as on the commutation phenomenon itself. It indicates that exact duplicate machines are rare accidents. The easing of present operating conditions for carbon brushes and extended life for the versatile d-c system are envisioned.
Starting Page	57
Ending Page	67
Page Count	11
File Size	14877016
File Format	PDF
ISSN	00189510
Volume Number	82
Issue Number	65
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1963-04-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electric machines Commutation Brushes Coils Testing Laboratories Voltage Manufacturing Rotation measurement Magnetic analysis
Content Type	Text
Resource Type	Article
Subject	Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Contribution to the Theory of Commutation on D-C Machines

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A Proposal for International Standardization of EHV Transmission Voltages

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