What is Hunting Effect? Why Damper Windings are used in Alternators?

Damper Winding in Salient pole Machines

Hunting Effect: When alternator (synchronous generator) is running under normal condition, stator field and rotor magnetic field will be rotating in the same direction at synchronous speed. When sudden change in load across the alternator (stator) or change in the torque of turbine occurs, speed of the rotor falls back of synchronism with that of … Read more