Motors have played a very important role in our life because they are present in almost every gadget that we use in our daily life. AC motors or Alternating Current motors are those motors that run on alternating current. However, there are different AC motors that can be further divided as per the kind of rotor that is used in them. AC motors are not new to us, and they have been invented in the 19th century by various great electrical engineers like Nikola Tesla and Michail Dolivo Dobrovolsky who came out with three phase AC motors that are commonly used in major commercial applications.
Today AC motors are being use in some of the common applications that we use like mixers and hand drills. AC motors are generally divided into single phase motor and three phase motors. Single phase AC motors are mostly used for items that are used in home, and therefore, you find them in juicers, mixers and other household appliances. However, there are large single phase AC motors that are used by adding a capacitor to it, which creates a second phase from the single phase AC current passing through it. This kind of AC motor is better known as induction motor. On the other hand, three phase AC motors have more power, and therefore, they are mainly used for applications in factories and industrial settings.
One of the important advantages of using an AC motor is that you can vary the speed of the motor as per your convenience. The speed is generally measured in rotation per minute also known as RPM.