V and Inverted V curves of Synchronous Motor
A 3-phase synchronous generator is operating at a constant load while the excitation is adjusted to give unity pf current. If the excitation is now increased, the pf will
A synchronous motor with negligible armature resistance runs at a load angle of 20° at rated frequency. If supply frequency is increased by 10%, keeping other parameters constant, the new load angle will be
The constant speed of a synchronous motor can be changed to new fixed value by
A synchronous motor working on leading power factor and not driving any mechanical, is known
In a synchronous motor if the back emf generated in the armature at no load is approximately equal to the applied voltage, then