The advantages of AC over DC are given below.
a. For the same capacity alternators are cheaper than DC generators, because alternator is not having commutator arrangement and there by small in size.
b. Alternating current produces pulsating magnetic field and there by it posses the property of inductance and capacitance.
c. Alternating current can be step-up or step-down by static transformer.
d. AC can be transmitted with very less cost in comparing to DC transmission.
e. Alternating line losses are very less comparing to DC line losses.
f. An alternators and AC motor requires very less maintenance.
g. Charge per unit for AC is less than DC.
