The following constitute short-circuit in the armature winding.

Related Mcqs:

A separately excited generator as compared to a self-excited generator_____________?

A. is amenable to better voltage control B. is more stable C. has exciting current independent of load current D. has all above features...

The resistance of armature winding depends on

A. length of conductor B. cross-sectional area of the conductor C. number of conductors D. all of the above...

The rapid wear of brushes takes place due to____________?

A. abrasion from dust B. excessive spring pressure C. rough commutator bars D. high mica insulation between com-mutation bars E. all of the above factors...

The e.m.f. generated by a shunt wound D.C. generator isE. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be_______________?

A. E/2 B. 2E C. slightly less than E D. E...

In a D.C. generator:___________________?

A. external resistance = internal char-acteristic – armature reaction B. internal characteristic = magnetisation characteristic – ohmic drop C. external characteristic = magnetisation characteristic – ohmic drop – armature reaction D. magnetisation characteristic = external characteristic...