Paper Title
High Frequency Analysis Of Power Transformer Taking Into Account The Frequency Dependent Losses

Power system widely uses the Gas Insulated Substation and it has been experienced that fast switching operations generates Very Fast Transients Overvoltage’s which have a very short rise time of 50ns and is usually accompanied by high frequency oscillation. In this paper the hybrid modeling of a power transformer, which is based on travelling wave theory, is being explained Further this paper deals with the modeling and simulation of a Power transformer, having a disk type winding. Simulation work is done in MATLAB to find inter-turn and inter-disk voltages. In the modeling of transformer the frequency dependent losses are also taken into account because their effect become more prominent at higher frequency ranges.