IN THIS CONTRIBUTION A HIGH FREQUENCY MODEL FOR POWER TRANSFORMERS BASED ON TRAVELING WAVE THEORY IS USED TO ENABLE THE CALCULATION OF WINDING PARAMETERS. FOR DIAGNOSTIC AND TRANSIENT ANALYSIS, DETERMINATION OF HIGH FREQUENCY PARAMETERS OF THE WINDING IS NECESSARY.
THE PARTIAL DIFFERENTIAL EQUATION ACCORDING TO THE SUGGESTED MODEL IS SOLVED FOR A WINDING WHERE THE NEUTRAL HAS BEEN GROUNDED THROUGH A PURE RESISTANCE. WITH THE HELP OF SIGNAL MEASUREMENT AT THE TERMINALS AND USING THE MODEL THE PARAMETERS ARE CALCULATED. SOFT COMPUTING METHODS LIKE THE GENETIC ALGORITHM ARE USED FOR IDENTIFICATION OF MODEL PARAMETERS. THE EXPERIMENTAL RESULTS FOR A REAL TRANSFORMER IS REPORTED IN THE PAPER AS WELL.