EMF Equation of a Synchronous Generator or Alternator

We know that in a synchronous generator or alternator when the conductors of the rotor cuts the alternating magnetic flux lines produced by the stator or field winding an EMF will induce in the rotor conductors (according to the …

V Curves and Inverted V Curves of Synchronous Motor

The performance characteristics of a synchronous motor are obtained by v-curves and inverted v-curves. Synchronous machines have parabolic type characteristics (the graph drawn is in the shape of parabolic). If the excitation i…

Synchronous Condenser and Power Factor Correction

Synchronous Condenser or Synchronous Capacitor : If a synchronous motor is on no-load and over-excited (E b > V) then the current drawn by it leads the voltage by nearly 90°. The phasor diagram of the motor at no-load is sh…

Starting Methods of Synchronous Motor

A device that converts electrical energy into mechanical energy running at synchronous speed is called Synchronous Motor . Its speed is constant irrespective of load. It is a doubly excited machine because its field winding is ex…

Construction Details of Synchronous Motor

As there is no constructional difference between dc generator and dc motor, similarly, there is no difference between the construction of a synchronous motor and a synchronous generator (alternator). The construction of a synch…

Efficiency and Power Flow Diagram of Induction Motor

Power Transfer Stages of Induction Motor : An induction motor converts electrical power supplied to it into mechanical power. The various stages in this conversion are called power transfer stages in an induction motor. The 3-ph…

Induction Motor Applications

Most of the motors used for household and commercial purposes are induction motors. The use of an induction motor as an induction generator is insignificant. An induction motor has nearly constant speed motor characteristics. Oth…

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