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