Calculation of parameters in transformer winding based on the model of multi-conductor transmission line

This paper uses multi-conductor transmission line (MTL) to model transformer windings. According to the symmetry of windings, a 2D equivalent finite element model can be set up under ANSYS environment. On the basis, finite element method (FEM) is used to calculate the distributed parameters in transformer windings. In the process of calculation, the skin effect is focused on. The frequency-dependent parameters are calculated at the different frequency points based on FEM. Therefore, the calculating parameters are helpful to research on propagation characteristics of PD pulses in electric equipments.