Analytic calculation of leakage inductances of dual frequency concentric windings transformers
Joseph El Hayek · 2002
Static power electronic converters supplying railways DC or AC motors, require series inductances which can simply be the leakage short-circuit inductances of the traction transformer. This paper describes a one-dimensional analytical method which permits to calculate leakage inductances between primary and secondary windings of dual frequency transformers. A comparison to a two-dimensional analytical method as well as to measurement results on existing units is made. Furthermore, illustration software developed in Visual Basic on Microsoft Excel is presented.