Explain important functions served by the damper winding in a synchronous motor.

Important functions of damper winding in a synchronous motor: 

• The oscillatory motion of the rotor about the operating point is considerably reduced in amplitude and rotor quickly returns to the steady position. 
• Providing starting torque like an induction motor.
• At starting, the rotor achieves a speed close to synchronous speed and the rotor and stator fields lock into each other as soon as field excitation is switched on. 

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