Contents
A three-dimensional analysis of the quasistationary leakage magnetic field of a three-phase transformer with disk windings is presented. A simplified mathematical model of the transformer based on Maxwell's equations has been applied. Computational results of the short-circuit reactance for the symmetrical and asymmetrical disk windings have been compared with analytical ones according to Richter's formulas [8]. For the magnetic field calculation, the finite difference method with the application of fast calculating subroutines has been used.
Übersicht
Es wird eine dreidimensionale Analyse des quasistationären magnetischen Streufeldes eines dreiphasigen Transformators mit Scheibenwicklung dargestellt. Dazu wird ein vereinfachten mathematisches Modell eines Transformators auf der Basis der Maxwell-Gleichungen angewandt. Die numerischen Ergebnisse der Kurzschlußreaktanz für symmetrische und unsymmetrische Scheibenwicklung wurden mit den analytischen Ergebnissen nach R. Richter [8] verglichen.
Für die Berechnung des magnetischen Feldes wurde ein Differenzenverfahren mit schnellen numerischen Prozeduren verwendet.
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The first author is on leave from the Technical University in Opole (Poland) under the Alexander von Humboldt Grant.
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Lukaniszyn, M., Unbehauen, R. The 3-D calculations of the leakage magnetic field and the short-circuit reactance in a transformer with disk windings. Electrical Engineering 78, 151–157 (1995). https://doi.org/10.1007/BF01236790
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DOI: https://doi.org/10.1007/BF01236790