Nov 27, 2019 · To find the effect of field current variation on synchronous motor we study given below figure. First, we suppose that the motor is connected with inductive load (lagging P.F) …

Synchronous generators or alternators are synchronous machines used to convert mechanical energy into electrical energy. Synchronous motors convert electrical energy into mechanical …

A dc current must be supplied to the field circuit on the rotor. Since the rotor is rotating, a special arrangement is required to get the dc power to its field windings.

Nov 5, 2017 · V-curve and power factor control of generator are closely related to each other. V-curve of Generator is basically a plot of variation of armature current with the change in field …

Power factor is the cosine between voltage and current in a sinusoidal AC circuit. Note that the power factor angle is controllable by the generated voltage E and hence by the DC field …

Oct 23, 2022 · In a synchronous generator, a DC current is applied to the rotor winding, which produces a rotor magnetic field. The rotor of the generator is then turned by a prime mover, …

This lesson covers the fundamental aspects of synchronous machines, focusing on their operation, features, and the impact of varying the excitation. It explains how the power factor …

• In synchronous generators a stator (armature) winding produces voltage in response to a magneti fi ld d d h t i di itic field produced when a rotor winding is “excited” by field current • …

Synchronous machines are similar to DC machines in that: they have a field winding and an armature winding; a dc current is passed through the field winding to produce flux; the flux …

•Synchronous generators can operate either as generators or as motors •Synchronous motors run in synchronism with the revolving field: –When the frequency is fixed, the motor speed stays …