Three single-phase transformers are each rated 460 V/ 13.2 kV 400 kVA, 5% short - circuit reactance. The three single-phase transformers are connected as a three-phase Y – Y transformer. A bank of three-phase Y connected resistive load of 30 Ω is connected to the low - voltage side of the transformer using a feeder with the resistance of 1 + j10 Ω. Perform the following: 

i) Compute the three-phase Y – Y transformer high - voltage - side and low - voltage - side voltage and kVA ratings. 

ii) Compute and draw per unit model of the three-phase transformer. 

iii) Give the three-phase equivalent model of the entire mode with actual values 

iv) Give a one-line diagram of the circuit with actual values 

v) Compute and draw the per unit model based on transformer rating