Leakage Inductance Determination for Transformers with Interleaving of Windings R. Doebbelin and A. Lindemann Institute of Electric Power Systems, Otto-von-Guericke-University Magdeburg, Germany

Leakage Inductance Determination for Transformers with
Interleaving of Windings
R. Doebbelin and A. Lindemann
Institute of Electric Power Systems, Otto-von-Guericke-University Magdeburg, Germany

Abstract| A diversity of formulas is given in literature for leakage inductance calculation
of transformers with interleaving of windings. In the paper, the meaning of included terms and
details of the application for concentric and pie windings transformers shall be discussed. Consid-
ering the limitation of common formulas to magnetically symmetric transformers an alternative
approach shall be demonstrated, which enables leakage inductance prediction also in the case of
transformers with magnetically asymmetric arrangements of windings.

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