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Leakage Inductances of Transformers at Arbitrarily Located Windings

Author

Listed:
  • Marcin Jaraczewski

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

  • Tadeusz Sobczyk

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

Abstract

The article presents the calculation of the leakage inductance in power transformers. As a rule, the leakage flux in the transformer window is represented by the short-circuit inductance, which affects the short-circuit voltage, and this is a very important factor for power transformers. This inductance reflects the typical windings of power transformers well, but is insufficient for special transformers or in any case of the internal asymmetry of windings. This paper presents a methodology for calculations of the self- and mutual-leakage inductances for windings arbitrarily located in the air window. It is based on the 2D approach for analyzing the stray field in the air zone only, using discrete partial differential operators. That methodology is verified with the finite element method tested on real transformer data.

Suggested Citation

  • Marcin Jaraczewski & Tadeusz Sobczyk, 2020. "Leakage Inductances of Transformers at Arbitrarily Located Windings," Energies, MDPI, vol. 13(23), pages 1-20, December.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:23:p:6464-:d:458094
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    References listed on IDEAS

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    1. Tadeusz Sobczyk & Marcin Jaraczewski, 2020. "On Simplified Calculations of Leakage Inductances of Power Transformers," Energies, MDPI, vol. 13(18), pages 1-13, September.
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    Cited by:

    1. 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.
    2. 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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    2. 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.
    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.

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