Induced EMF Equation in Synchronous Machine Emf is induced in the armature windings due to the cutting of flux by the rotation of the rotor poles. Distribution of coils in the stator slots and the use of short-pitch coils affect the magnitude and the waveshape of the induced coil. In synchronous machines, the armature winding …
Method of starting of Synchronous Machine As we know that the three-phase synchronous machine is not self-starting. The average synchronous motor torque is zero at rest. For a net average torque, the motor must reach near synchronous speed. Some auxiliary device is, therefore, necessary to bring the synchronous motor up to near synchronous speed. The …
Construction of Alternator
The AC generator (alternator) or synchronous generator is a machine which converts the mechanical power or energy into electrical power.
The construction of an alternator is very similar to the DC generator but the main difference between them in DC generator the armature winding is the rotating part and field winding is the stationary part whereas in an alternator the armature winding is stationary and field winding is the rotary part.
Working Principle Of An Alternator The fundamental working principle of an alternator is the same as the DC generator i.e as DC generator an alternator or synchronous generator work on the principle of Faraday’s law of electromagnetic induction. Faraday’s law of electromagnetic induction states that when a current-carrying conductor is placed in the magnetic field …
