DOI: https://doi.org/10.15407/publishing2020.55.046

INCREASING THE EFFICIENCY OF USING AN AUTOTRANSFORMER WITH A CORE OF MAGNETIC CIRCUIT AS A PART OF THE TRANSFORMER-AND-SWITCHES EXECUTIVE STRUCTURE OF AN AC VOLTAGE STABILIZER

K.O. Lypkivskyi*, A.G. Mozharovskyi**
Institute of Electrodynamics of the National Academy of Sciences of Ukraine,
Peremohy, 56, Kyiv-57, 03680, Ukraine,
e-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , This e-mail address is being protected from spambots. You need JavaScript enabled to view it
* ORCID ID : http://orcid.org/0000-0002-3292-1360
** ORCID ID : http://orcid.org/0000-0001-9801-2728

The autotransformer (AT) of the transformer-and-switches executive structure (TSES) of an AC voltage stabilizer largely determines the overral dimensions of the converter. One of the methods to increase the efficiency of using the installed power of the AT is the targeted redistribution of losses in the elements of the AT, which can reduce the unevenness of their heating, increase the current density in its windings and, as a result, increase the load current and its allowable power. The paper traces the features of this procedure and its consequences for a TSES with an autotransformer which has a core magnetic circuit, the possible choice of which is one of a number of manifestations of the multivariance of the construction of a transformer-and-switches executive structure. References 12, figures 2, table 1.
Key words: transformer-and-switches executive structure, discrete smart transformer, AC voltage converter, partitioned winding, variation of current density, thermal processes.

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Received 05.09.2019  

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