NDLI: Noninvasive Procedure for Improving Efficiency of Three-Phase Induction Motors

Content Provider	IEEE Xplore Digital Library
Author	Prakash, V. Baskar, S. Krishna, K.S.
Copyright Year	1965
Abstract	In developing countries, three-phase squirrel cage induction motors, even though with load equal to their name plate rating, may operate at low efficiencies. This may be because their winding parameters are not optimized for lower running cost. To ascertain the cause, it is necessary to know the stator winding data and compare it with the results of the design. If a deviation exists, the winding is improper. However, it may be possible to improve efficiency by rewinding the motor. We propose a noninvasive procedure to determine the following winding data: number of parallel circuits in a phase, number of turns per coil, and conductor area. The procedure includes a new iterative algorithm for determining these winding data. We discuss experimental investigations to validate the proposed procedure and to test its effectiveness in energy conservation. We outline the usefulness of the procedure for designers and the advantages it offers to service providers and educational institutions.
Sponsorship	IEEE Magnetics Society
Starting Page	505
Ending Page	515
Page Count	11
File Size	359103
File Format	PDF
ISSN	00189464
Volume Number	44
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Induction motors Cost function Design optimization Educational institutions Stator windings Testing Optimization methods Reactive power Pulse width modulation inverters Circuits three-phase induction motor AC machine efficiency noninvasive testing stator winding
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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