As the power requirements of single load systems are often small, all our homes, offices are supplied with a single-phase A.C. Single Phase Ac Motor supply only. To get appropriate working circumstances using this single-stage supply, compatible motors have to be used. Besides becoming compatible, the motors need to be economical, dependable and easy to repair. One will discover most of these characteristics in a single phase induction motor easily. Similar to three-stage motors but with some modifications, single-phase induction motors certainly are a great choice for domestic appliances. 
Their simple design and low cost have attracted many applications.
Single-phase induction motors are the basic motors which are powered by single -stage A.C. and where torque is produced because of induction of electricity due to the alternating magnetic fields