Magnetizing currents of transformers operating with submagnetizing of DC

This paper presents a method for specifying the magnetizing current of the transformers operating with different submagnetizing of DC flux and for different values of supply voltage (flux density in the core). The theoretical method of calculating of magnetizing currents has been developed. The comp...

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Bibliographic Details
Published inInternational journal of applied electromagnetics and mechanics Vol. 57; no. S1; pp. 191 - 200
Main Author Majer, Krzysztof
Format Journal Article
LanguageEnglish
Published Amsterdam IOS Press BV 08.04.2018
Subjects
Flux density
Instantaneous current
Magnetic circuits
Transformers
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Summary:This paper presents a method for specifying the magnetizing current of the transformers operating with different submagnetizing of DC flux and for different values of supply voltage (flux density in the core). The theoretical method of calculating of magnetizing currents has been developed. The computation and corresponding measurements were performed for single phase and three phase, three and five legs transformer cores. The influence of magnetization characteristics on the shape of instantaneous current value was investigated. The results obtained were used to determine the peak values of flux density in certain parts of the magnetic circuit. This has a significant impact on precisely determine vibroacoustic parameters and losses in particular sections of the magnetic circuit of transformers.
ISSN:1383-5416
1875-8800
DOI:10.3233/JAE-182313