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Published in: Measurement Techniques 9/2021

07-02-2022

Method for Determining the Optimal Thickness of Sheets of Magnetic Circuits of Electrical Machines by a Wattmeter Method

Author: S. M. Plotnikov

Published in: Measurement Techniques | Issue 9/2021

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Abstract

The problem of reducing magnetic losses (no-load losses) in the steel of magnetic circuits of electrical machines is studied. The determination of the optimum thickness of steel sheets of magnetic circuits in electrical machinery is investigated. The optimization criterion is minimum power losses in the steel. The magnetic power losses in contemporary electrical machinery and apparatus are analyzed as a function of the thickness of the sheets of electrical steel. A method is proposed for determining the optimum thickness of steel sheets in the magnetic circuit of an electrical machine based on a wattmeter technique. During an experiment on two identical magnetic circuits made of different thicknesses of sheet steel, the losses in the steel were measured at two magnetic reversal frequencies and the optimum thickness of the sheets was calculated. It was shown that the proposed formula for calculating the sheet thickness holds for both isotropic and anisotropic steel. The proposed method is applicable to transformers, as well as to electric motors and generators.
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Metadata
Title
Method for Determining the Optimal Thickness of Sheets of Magnetic Circuits of Electrical Machines by a Wattmeter Method
Author
S. M. Plotnikov
Publication date
07-02-2022
Publisher
Springer US
Published in
Measurement Techniques / Issue 9/2021
Print ISSN: 0543-1972
Electronic ISSN: 1573-8906
DOI
https://doi.org/10.1007/s11018-022-01999-5