# Question: A 500 V/230 V single-phase transformer is rated at 30 kVA. The open-circuit test results, with the instruments connected to the high voltage winding, are 300 W, 3.5 A at 500 V, 50 Hz. The short circuit test results, 230 V winding short-circuited, and with the instruments still connected to the 500 V winding, are 1500 W, full load current at 30V. (a) Calculate the approximate equivalent circuit values. (b) Draw the approximate equivalent circuit with the appropriate values referred to the high voltage winding. (c) Draw the approximate equivalent circuit with the appropriate values when referred to the low voltage winding. -Free Course Hero Question Answer.

Question Description: A 500 V/230 V single-phase transformer is rated at 30 kVA. The open-circuit test results, with the instruments connected to the high voltage winding, are 300 W, 3.5 A at 500 V, 50 Hz. The short circuit test results, 230 V winding short-circuited, and with the instruments still connected to the 500 V winding, are 1500 W, full load current at 30V. (a) Calculate the approximate equivalent circuit values. (b) Draw the approximate equivalent circuit with the appropriate values referred to the high voltage winding. (c) Draw the approximate equivalent circuit with the appropriate values when referred to the low voltage winding.