In a three-phase uncontrolled star rectifier with resistive load, the average load voltage and current are 190 V and 4.5 A respectively. Calculate the load power, load resistance, maximum transformer line-line secondary voltage and transformer power rating. Design the diodes. Calculate the primary line current if the transformer is A/Y connected with turns ratio 30/14. Design a single phase full wave uncontrolled rectifier with center-tapped transformer for a 600 watt, 140 V (Vdc) load if the main supply is 220 volt.