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in ceiling fans we use AC capacitors they give the initial torque to the running windings or to give the self start to the fan . .
to make rotating magnetic field
Ceiling fan is a single phase induction motor, which doesn't have the property of self starting. Ceiling fan contains two windings, a starting winding and a running winding. capacitor is connected in series with starting winding. When energized, the starting winding creates a phase difference which leads approx.90 degree wrt running winding and thereby creates a starting torque. ceiling fan is a capacitor start, capacitor run induction motor. Apparently ceiling fan is a Two phase Induction motor.
