A 50 kVA, 2200/110 V transformer when tested gave the following results:
OC test, measurements on the LV side:
400 W, 10 A, 110 V SC test, measurements on the HV side; 808 W, 20.5 A, 90 V
Compute all the parameters of the equivalent circuit referred to the HV and LV sides of the transformer. Also calculate % voltage regulation and efficiency at full load and 0.8 pf lagging.