USE VARIABLE SPEED DRIVE (VSD) OR ALSO CALLED VARIABLE FREQUENCY DRIVE (VFD). THE PRINCIPLE IS TO VARY OR CHANGE THE FREQUENCY WITHOUT AFFECTING THE VOLTAGE. THIS IS ONE SOLUTION TO ENERGY MANAGEMENT AND COMBINED TO BUILDING AUTOMATION SYSTEM OR BUILDING MANAGEMENT SYSTEM.
The flux control method is the convectional and the non-convectional method of speed control of an induction motor.
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standard direction of rotation of an induction motor is counterclockwise when looking from the front end i.e. non-driving end of the motor.
A single phase induction motor is not self starting; thus, it is necessary to provide a starting circuit and associated start windings to give the initial rotation in a single phase induction motor. The normal running windings within such a motor can cause the rotor to turn in either direction, so the starting circuit determines the operating direction.
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.
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!!
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
standard direction of rotation of an induction motor is counterclockwise when looking from the front end i.e. non-driving end of the motor.
Cooling remains same irrespective of the motor rotational direction.
It is used for sensorless motor control. With vf speed control u can control speed of any induction motor.
The control panel will be based around a set of reversing magnetics. Depending on how you want to control the mags will depend on what type of peripheral equipment you will need to add to the control panel.
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.
A single phase induction motor has two sets of coils and a centrifugal start switch. The start winding is in series with the start switch. The start winding provides a rotating magnetic field in one direction enabling the motor to start. The motor can be reversed by reversing the connections of either the start winding or the run winding but not both.
A single phase induction motor is not self starting; thus, it is necessary to provide a starting circuit and associated start windings to give the initial rotation in a single phase induction motor. The normal running windings within such a motor can cause the rotor to turn in either direction, so the starting circuit determines the operating direction.