you can control the speed of a motor by changing frequency, increase or decrease the field winding or by voltage regulation. in these method you can controle the speed of athree phese motor
SANDEEP SARKAR
The flux control method is the convectional and the non-convectional method of speed control of an induction motor.
How many methods can be used to control the speed of Single Phase Induction Motor? 1.injecting emf method 2.by frequency control method 3.induced voltage method
I need the answer of this question plz!!
by motor starter
It is used for sensorless motor control. With vf speed control u can control speed of any induction motor.
Open ended induction motor - i assume you are talking about split phase induction motor. With these motors old style speed controlling method using external resistors can be used. However this is now obsolete.
It is used for sensorless motor control. With vf speed control u can control speed of any induction motor.
induction motor has two control system one is stator control another rotor control And it comes under the category of asynchronous motors. The term induction is because the rotor of an a.c motor does not receive the electric power through conduction but by induction same as the secondary of the transformer receives the power from primary. And so an induction motor can also be called as a rotating transformer i.e. one in which primary is stationary and secondary is free to rotate.
When you do a load test on a 3-phase induction motor you are checking the power factor, viz slip, and efficiency of the motor. You can test various loads with this test.
Friction is present at the motor shaft and also in various parts of the load. The friction torque is equivalent value of various friction torques referred to the motor shaft.
Yes the Induction motor works on Electromagnetic induction principle.
because its possible only where pole changing arrangements are given and pole changed motor draws more current then its actual pole which damages its windings.