AC single phase motor is one which runs on a single phase AC supply and converts electrical energy into magnetic energy.
why single phase motor does not automate?
The design of AC single phase motor is almost similar to that of three phase motor, the only difference is that Winding is done inside this motor only for single phase When the stator of a motor is connected to a single phase supply,Alternating field is created in it which is only going to be less and more due to which no torque is produced Thus the rotor remains in place If the rotor is somehow rotated in one way, it starts rotating in the same direction.This means that the alternating flash cannot make a rotating wheel.And the motor can’t be automatic To make the motor automatic, it is necessary to make a rotating spoke inside it.A starting device is required before starting a single phase motor.To make most of the second page, an auxiliary winding is done in the stator which is called plate phase winding.It produces a rotating field between the main poles through its poles.Due to whose two fields the motor becomes automatic
Principle of AC Single Phase Motor
The principle of motor is same as that of three phase motor i.e. when any short circuit conductor comes in the middle of rotating magnetic field, a bar is generated on it.whereby it begins to roam in the middle of it
- Methods for automating a motor
Single phase motors can automate the motor by any one of the following methods for making toilets by producing a rotating field
1. Send splitting daughter by dividing one page into two pages
2. commentator method
Under status when single phase supply is given So due to having more resistance and index than starting and running winding, two types of current are formed inside them as The current of the starting winding is near the voltage but the current of the running winding is away from the vector, due to which a rotating magnetic field is produced.causing a darkening inside the rotor and the rotor of the motor starts rotating when the rotor speed is near 75 or 80%At that point the centric google switch isolates the starting winding from the circuit by centrifugal force.And the motor runs on the running winding, the starting torque of the motor is low and the starting current is high.
This type of motor is used in blower fan centrifugal pump etc.
1. There are different types of split phase motors.
• Permanent Capacitor Motor
• Split Phase Induction Motor Capacitor Start
• Split Phase Induction Motor Capacitor Start Capacitor Run
• shaded pole motor
- Permanent Capacitor Motor
The rotor of this type of motor is made like a shrinkage but two types of winding are done on the stator.One winding thin wire having maximum and low index and second winding modi wire having low turn low resistance and high index A capacitor setter is connected in series with the starting winding In this type of motor, no centrifugal switch is used in the series of starting winding.The starting winding is inserted in the upper part of the slot, it is mostly used in single fan table fan etc..
- Must read
Split Phase Induction Motor Capacitor Start Both the rotor and state of this type of motor are made like split phase.There are two types of winding in the stator, one starting winding and the other running winding.One of the series of starting winding is veto Due to this the current leads the voltage and the current in the running winding lags the voltage When the motor achieves speed close to 75%, here the winding and capacitor are separated from the circuit by the centrifugal switch and run on the running winding of the motor only.Thus in each winding the current out off is faster the torque
of the motor is good