25 kVA, 440 / 220 V, 60 Hz, one idle operation of a phase transformer and short-circuit tests measurements have been made:
Idle test: Primary on low voltage in circuit state 220V, 9.6 A and 710W on the side.
Short circuit test: At rated current high when the secondary is shorted 42V, 57 A and 1030W on the voltage side.
Primary winding resistance is 0.20. Calculate according to the transformer T equivalent circuit parameters.