What is a shaded pole motor used for?
What is a shaded pole motor used for?
Applications of the Shaded Pole Induction Motor Used in exhaust fans, hairdryers, and also table fans. Used in air conditioning and refrigeration equipment and cooling fans. Record players, tape recorders, projectors, photocopying machines. Used for starting electronic clocks and single-phase synchronous timing motors.
What type of motor is a shaded pole?
single-phase induction motor
The shaded-pole type single-phase induction motor is one that has, in addition to the master wiring, an auxiliary short-circuited winding shifted from the master winding by an electric angle of less than 90 degrees.
What is the disadvantage of shaded-pole motor?
Disadvantages of Shaded Pole Motor : Low power factor. High losses. Less efficiency. Difficult in speed reversal as it requires expensive copper rings.
What is the capacity of shaded pole motor?
They are built in power sizes up to about 1⁄4 horsepower (190 W) output. Above 1⁄3 horsepower (250 W), they are not common, and for larger motors, other designs offer better characteristics.
Which motor operates at high power factor?
Advantages of capacitor run induction or PSC motor: A Centrifugal switch is not required. It has high efficiency. It has a high power factor because of a permanently connected capacitor.
What is special about reluctance motor?
A reluctance motor is a type of electric motor that induces non-permanent magnetic poles on the ferromagnetic rotor. The rotor does not have any windings. It generates torque through magnetic reluctance. Reluctance motors can deliver high power density at low cost, making them attractive for many applications.
What is the smallest shaded pole motor size in HP?
Shaded-pole motors are best suited to low-power household application, because the motors have low starting torque and efficiency ratings. Because of the weak starting torque, shaded-pole motors are built only in small sizes ranging from 1/20 to 1/6 hp.
What is a shaded pole induction motor?
The speed of a shaded pole induction motor is inversely proportional to the number of poles used in the motor.
What is a shade pole motor?
Working Principle of Shaded Pole Motor.
What is a motor pole?
The motor drive energizes stator teeth one after the other to make the rotor turn, thanks to its magnets’ tendency to force alignment with the stator teeth. Simply defined, a pole is a north or south magnetic field of force that is generated by a permanent magnet or current passing through a coil of wire.