A 24V alternator-transformer is equipped with an IC engine to charge an 33kWh battery of nominal voltage 150V and capacity of 86Ah. The alternator- transformer efficiency is recorded as 59% to generates current of 70A for the engine speed of 2500 rpm. By adding the number of diodes with the rectification ciruit the alternator-transformer efficiency has been improved to 70% for engine speed of 2500 rpm. A. Find the alternator: (i) Required input power (ii) Engine size to power the alternator-transformer, kW (iii) Transformer step ratio for getting the battery nominal voltage of 100V (iv) Battery charging current, A (v) Battery charging time, h (vi) Total charging state increment for 2 hours (2) (2) (2) (2) (2) (2)