In case you are wondering about the difference between 3 stage vs single phase AC motors, remember this. Single 
phase AC motors usually are powered by a single phase source of power while 3 stage AC motors operate on a three phase source of power. The single phase alternating electric current is the most common source of power utilized by the majority of households and non commercial businesses. It’s the power that is utilized to light homes and power TVs in THE UNITED STATES. Today, most commercial buildings in the US use the 3 phase alternating electric current motors due to its versatility an power density. The 3 phase AC motor is particularly common in huge businesses which includes in the manufacturing and industrial businesses.
Data centers today have grown to be power intensive, to ensure that they can be able to offer storage space and computing capabilities. This has led to the growth in demand of power supply to meet the needs of these data centers. The single phase alternating current power motor can no longer meet up with the power needs of these data centers since it requires costly rewiring. Three phase alternating current power engine is economical to supply capacity to data center since it requires much less conductor material to provide electricity. This explains why 3 phase alternating current motor is utilized in electric transmission, generation and distribution in most countries globally. The single stage alternating current motor is less reliable and more expensive to be used in a national electrical power grid in comparison to 3 phase alternating current motor.
Both 3 phase and solitary phase ac motors consist of two parts, namely the rotor and stator. The stator may be the part of the motor, which is stationary while the rotor is merely the rotating section of the motor.