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On Simplified Calculations of Leakage Inductances of Power Transformers

Author

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  • Tadeusz Sobczyk

    (Faculty of Electrical and Computer Engineering, Cracow University of Technology, Warszawska 24 Street, 31-155 Cracow, Poland)

  • Marcin Jaraczewski

    (Faculty of Electrical and Computer Engineering, Cracow University of Technology, Warszawska 24 Street, 31-155 Cracow, Poland)

Abstract

This paper deals with the problem of the leakage inductance calculations in power transformers. Commonly, the leakage flux in the air zone is represented by short-circuit inductance, which determines the short-circuit voltage, which is a very important factor for power transformers. That inductance is a good representation of the typical power transformer windings, but it is insufficient for multi-winding ones. This paper presents simple formulae for self- and mutual leakage inductance calculations for an arbitrary pair of windings. It follows from a simple 1D approach to analyzing the stray field using a discrete differential operator, and it was verified by the finite element method (FEM) calculation results.

Suggested Citation

  • Tadeusz Sobczyk & Marcin Jaraczewski, 2020. "On Simplified Calculations of Leakage Inductances of Power Transformers," Energies, MDPI, vol. 13(18), pages 1-13, September.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:18:p:4952-:d:416959
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    References listed on IDEAS

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    1. Hayek, F. A., 2012. "Hayek on Hayek," University of Chicago Press Economics Books, University of Chicago Press, edition 1, number 9780226321202 edited by Kresge, Stephen & Wenar, Leif, October.
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    Cited by:

    1. Huseyin R. Hiziroglu, 2023. "A Special Issue: Electric Machinery and Transformers," Energies, MDPI, vol. 16(15), pages 1-3, July.
    2. Marcin Jaraczewski & Tadeusz Sobczyk, 2020. "Leakage Inductances of Transformers at Arbitrarily Located Windings," Energies, MDPI, vol. 13(23), pages 1-20, December.
    3. Zhi Yang & Mustafa Tahir & Sideng Hu & Qiuyan Huang & Haoqi Zhu, 2022. "Transformer Leakage Inductance Calculation Method with Experimental Validation for CLLLC Converter Topology," Energies, MDPI, vol. 15(18), pages 1-14, September.
    4. Marcin Jaraczewski & Tadeusz J. Sobczyk & Adam Warzecha, 2023. "Direct Steady-State Calculation of Electromagnetic Devices Using Field-Circuit Models," Energies, MDPI, vol. 16(13), pages 1-18, June.

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