A 1, 25 kVA, 220=440 V, 60 Hz transformer gave the following test results. Open circuit test (440 V side open): 220 V, 9:5 A, 650W Short-circuit test (220 V side shorted): 37:5 V, 55 A, 950W (a) Derive the approximate equivalent circuit in per-unit values. (b) Determine the voltage regulation at full load, 0.8 PF lagging. (c) Draw the phasor diagram for condition (b).

I need to design an app in matlab which can solve the question up . I just dropped two photos of the how app almost look like . You can design something different . However we are able to write inputs by keyboard so if it needs we can change it . I just need the codes of the matlab app . Just need the codes of app where I show below in the second picture .