It provides the phase shift necessary to have a rotating magnetic field for the rotor to spin.
Answer #2:
single phase induction motor can create pulsating magnetic field. due to single phase forward and backward torque created also they cancel led each other.so we want to extra force to rotate rotor either forward or reverse direction or we can give rotating magnetic field by using capacitor(phase split)
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.
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.
CAPACITOR STRAT AND capacitor run of a induction motor
Mostly capacitor is used in the induction motors to improve the power factor , and make them to work as a self starting machine. In the small size , capacity dc motor has capacitor across it to smooth running without spark
Single phase induction motor ( usually capacitor- start type)
capacitor start induction run motor
to start the motor and give more current to motor to run
Single phase induction motor ( usually capacitor- start type)
I have never come across a three phase capacitor start motor. Any three phase motors I have worked on are induction start.
There are 2 types of capacitor including starting capacitor and running capacitor running capacitor are used to improve the power factor of motor. starting capacitor used in split phase induction motor . starting capacitor may isolate from motor,s starting winding through of centrifugal switch after getting motor 90% of it,s rated speed.
As anything to do with timing values for an electronic system of controlling a motor. Based on the question, the simple answer is that the capacitor causes a 90 degree lead which allows the motor to have a magnetic shift which causes the motor to start rotation.
zma da ghan mata sa razeEven if I do not understand the language used above I still believe that the answe above is very irrelevant, to say the least.Answer:1. Resistance start single phase motor2. Capacitor start single phase motor3. Capacitor start and run single phase motor4. Capacitor start capacitor run single phase motor