Which type of induction motor is best for pole changing?
Which type of Induction motor is best for pole changing method? Explanation: Pole changing method is used to control the speed of Induction motor. It is only applicable for SCIM because SCIM rotor is made up of aluminum, copper bars. 7.
How many types of pole motors are there?
Basically, the number of poles is an even number (2, 4, 6, 8……). As described on the next page, there are two winding types: distributed winding and concentrated winding. The concentrated winding is suited for brushless motors. You can easily change the number of poles by changing the connection of the coils.
Which starting method is the best method in induction motor?
Starting of an Induction Motor
- Direct on-line starter. The direct on-line starter method, of an induction motor, is simple and economical. …
- Star delta starter. The star delta starter method of starting three-phase induction motors is very common and widely used among all the methods. …
- Autotransformer starter.
Which motor is preferred for quick speed reversal?
For quick speed reversal the motor preferred is. dc motor. squirrel cage induction motor. slip-ring induction motor.
What will happen if we increase the air gap in the induction motor?
If the air gap of an induction motor increases, 1) The permeability of the magnetic circuit rotor-to-stator will decrease. … 4) The magnetic flux in the air gap will decrease and leakage fluxes will increase; This will cause a reduction in the maximum available torque.
What is a pole in an induction motor?
The pole represents the number of permanent magnet poles for the rotating rotor, and a motor with one pair of N pole/S poles is called a two-pole motor.