In case you are wondering about the difference between 3 phase vs single stage AC motors, just remember this. Single stage AC motors usually operate on a single phase way to obtain power while 3 stage AC motors are powered by a three phase way to obtain power. The single stage alternating current is the most typical source of power used by most households and non industrial businesses. It is 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 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 become power intensive, so that they can end up being able to offer storage space and computing capabilities. It has resulted in the growth popular of power supply to meet up the needs of the data centers. The one phase alternating current power motor can't meet up with the power needs of the data centers because it requires costly rewiring. Three stage alternating current power motor is economical to provide power to data center since it requires much less conductor material to provide electricity. This explains why 3 stage alternating current motor can be used in electric transmission, era and distribution in most countries globally. The single stage alternating electric current motor is much less reliable and more expensive to be used in a national electrical power grid compared to 3 phase alternating current motor.
Both 3 phase and single phase ac motors contain two parts, namely the rotor and stator. The stator may be the part of the motor, which is stationary as the rotor is merely 
the rotating area of the motor.