What advantages do three phase motors have over single phase ...

[fnuegbu]

What advantages do three phase motors have over single phase motors?
 
  What will be an ideal response?

Question 2

About how many dice ice cubes would it take to equal one pound of ice?
 
  What will be an ideal response?

[juwms]

Answer to Question 1

The advantages that three phase motors have over single phase motors are:

 They are easily reversible. The direction of rotation can be changed by interchanging any two supply voltage lines.

 There is less running torque pulsation because at least one phase is always producing an induced rotational effect on the rotor.
 They have higher starting torque because each winding is out of phase with the other windings and produces rotational torque.

 They have higher efficiency.

Answer to Question 2

48

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