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MRAJCA, M.
Originální název
Eddy Currents Additional Losses Comparison in Oil Distribution Transformer Windings
Typ
článek ve sborníku mimo WoS a Scopus
Jazyk
angličtina
Originální abstrakt
This paper examines the additional losses caused by eddy currents in various types of windings typically used for oil distribution transformers. Two models were selected for 2D simulation using the finite element method, one with only a core leg and the other with the core leg and yoke. The parameters of the models are based on real manufactured transformers of rated power 250, 630 and 1000 kVA. The final results are discussed and compared with measurements. The highest percentage of additional losses is found in the foil winding, followed by round, rectangular wire, and finally the lowest percentage is found in the flattened round wire. The presence of the yoke near the winding end significantly reduces these losses in foil and, conversely, increases them slightly in wire winding.
Klíčová slova
eddy current; additional losses; foil; round wire; flattened wire; rectangular wire; winding, transformer
Autoři
Vydáno
25. 4. 2023
Nakladatel
Brno University of Technology, Faculty of Electrical Engineering and Communication
Místo
Brno
Strany počet
5
BibTex
@inproceedings{BUT183442, author="Miroslav {Mrajca}", title="Eddy Currents Additional Losses Comparison in Oil Distribution Transformer Windings", year="2023", pages="5", publisher="Brno University of Technology, Faculty of Electrical Engineering and Communication", address="Brno" }