When two D.C. series generators are running in parallel, an equilizer bar is used________________?

Related Mcqs:

In D.C. generators, the cause of rapid brush wear may be___________?

A. severe sparking B. rough commutator surface C. imperfect contact D. any of the above...

D.C. generators are connected to the busbars or disconnected from them only under the floating condition________________?

A. to avoid sudden loading of the primemover B. to avoid mechanicaljerk to the shaft C. to avoid burning of switch contacts D. all above...

Number of tappings for each equalizer ring is equal to_____________?

A. number of pole pairs B. number of poles C. number of parallel paths D. number of commutator segments...

Following D.C. generator will be in a position to build up without any residual magnetism in the poles______________?

A. series generator B. shunt generator C. compound generator D. self-excited generator...

In a separately excited generator supplying rated load the armature reaction.

A. is always present B. is always absent C. may be sometimes present D. none of the above...