The performance curve can be a graph of torque versus speed. The torque is zero at zero speed and also at the synchronous speed.
Normally an induction motor operates at 90-97% of the synchronous speed, where the slip is between 10% and 3%. In this region the torque is proportional to the slip. As the torque is increased the speed falls until the motor stalls and the speed drops to zero.
Below the stalling speed the torque rises between zero speed and the stalling speed. Because the torque is 0 at 0, a single-phase induction motor needs a separate starting winding fed by a starting capacitor to produce a little positive torque that starts the motor.
capacitive start motors start by themselves however a normal single phase induction motor requires a starter motor to 'kick-start' the motor into action.
Could be a single phase induction motor of 20-40 watts.
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Split Phase Induction Motor.
There no brushes in an induction motor. The rotor is independent and is a short-circuited cage of parallel bars.
how reversing an ac single phase induction motor to wark as induction generator
single-phase induction motor is used in ceiling fan.
Single phase Induction motor
The single phase induction motors are made self starting by providing an additional flux by some additional means. Now depending upon these additional means the single phase induction motors are classified as: 1.Split phase induction motor. 2.Capacitor start inductor motor. 3.Capacitor start capacitor run induction motor. 4. Shaded pole induction motor.
capacitive start motors start by themselves however a normal single phase induction motor requires a starter motor to 'kick-start' the motor into action.
Could be a single phase induction motor of 20-40 watts.
revolving field theory of single phase induction motor
A single phase induction motor is mainly used in fans.It is capacitor start capacitor run induction motor.In three phase induction motor squirrel cage induction motor is mainly used in elevators,lifts,cranes.slip ring induction motor is mainly used in electrically driven ships.
Single phase induction motor is used in grinder.
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because the squirrel cage induction motor is cheaper and high starting performance is not required.
Split Phase Induction Motor.