Research on inductance parameters of transformer winding applied transient voltage

Based on the transformer winding inductance model which presented by P.I. Fergested, a new kind of calculation method is presented, which the inductance parameters are divided into the hollow inductance and core inductance two separate parts, each part is divided into self-inductance and mutual-inductance, while the related parameter values are discussed. The measurement results are consistent with the calculation results of the inductance parameters in an actual transformer winding model, which verifies the calculation method is correct and feasible, the theoretical basis can be provided for accurately analyzing the very fast transient process in the transformer winding.