How can the direction of rotation of a synchronous motor be changed?

The direction of rotation of a synchronous motor is reversed by interchanging any two of the three line leads feeding the stator winding. The direction of rotation of the motor does not change if the two conductors of the dc source are interchanged.

How do you reverse a synchronous motor?

Synchronous motors with a single-phase AC voltage and a permanent magnet must have, for reverse operation, at least 2 stators and 2 coils. Reverse operation can be achieved electrically using a single-pole switch.

What is V curve in synchronous motor?

In power engineering & electrical engineering, V curve is the graph showing the relation of armature current as a function of field current in synchronous machines keeping the load constant.

How is the direction of rotation of a split phase motor can be reversed by reversing the connection of?

This can be accomplished by reversing the polarity of the starter or auxiliary winding. Basically, it is done by interchanging the connections on either end of the starter or auxiliary winding.

What will happen if we increase the air gap in the induction motor *?

Detailed Solution. If the air gap of an induction motor increases, 1) The permeability of the magnetic circuit rotor-to-stator will decrease. 2) The magnetizing inductance of the motor thus decreases.

How can we change the direction of the rotating magnetic field?

Direction of Rotation This is accomplished by reversing the connections of two of the power lines to the motor leads. The result is the rotating magnetic field will reverse, and the rotor will turn in that direction.

What is the V curve of synchronous motor show relationship between?

Detailed Solution. Synchronous motor: V curves for synchronous motor give the relation between armature current and DC field current.

Why we use V and inverted V curves?

What is V Curve and inverted v curve? The graphical representation of armature current Ia vs field current If is called V-curve since the final view looks like English letter V. At the same time the power factor vs field current is called inverted V-curve of a synchronous motor.