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Publication detail
MRAJCA, M.
Original Title
Advanced Turowski's Method for Eddy Loss Calculation in Transformer Foil Winding
Type
article in a collection out of WoS and Scopus
Language
English
Original Abstract
This paper presents an improved Turowski's method for calculating additional losses caused by eddy currents in foil winding, which is widely used in oil and dry distribution transformers. These losses are typically significant, and their estimation is essential for transformer output parameters and heating during the design process. The original method is the only one known to provide an analytical solution, which is necessary for design optimization. However, as this paper demonstrates, it is quite imprecise. Therefore, the final equation is derived without simplifications again. Then the new utilization combines Turowski's equations with the finite element method to describe the current density in each winding turn from the magnetic field strength obtained at the winding end, making the simulation faster and still accurate in comparison with the original method. The results are compared with the reference values and discussed.
Keywords
foil winding; eddy current; additional losses; transformer; current distribution; proximity effect
Authors
Released
25. 4. 2023
Publisher
Brno University of Technology, Faculty of Electrical Engineering and Communication
Location
Brno
Pages count
5
BibTex
@inproceedings{BUT183443, author="Miroslav {Mrajca}", title="Advanced Turowski's Method for Eddy Loss Calculation in Transformer Foil Winding", year="2023", pages="5", publisher="Brno University of Technology, Faculty of Electrical Engineering and Communication", address="Brno" }