Related Questions

In a synchronous motor it the back e.m.f. generated in the armature at noload is approximately equal to the applied voltage, then
A synchronous motor installed at the receiving end substation operates with such an excitation that it takes power at lagging power factor. Now if the applied voltage of the synchronous motor goes down, the power factor of the synchronous motor will
When load on an over-excited or under excited synchronous motor is increased, rate of change of its armature current as compared with that of power factor is
In an actual transformer the iron loss remains practically constant from noload to fullload because
An over-excited synchronous motor takes
One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven
When the field of a synchronous motor is under-excited, the power factor will be
A separately excited generator as compared to a self-excited generator
An important advantage of a synchronous motor over wound round induction motor is that
A synchronous motor can be used as a synchronous capacitor when it is