The following constitute short-circuit in the armature winding.

A. Insulation failure between two commutator bars

B. Insulation failure between two turns of a coil

C. Two of more turns of the same coil getting grounded

D. All of the above

Answer: Option D

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Related Questions on D.C. Generators

Which of the following statement about D.C. generators is false?

A. Compensating winding in a D.C. machine helps in commutation

B. In a D. C. generator interpoles winding is connected in series with the armature winding

C. Back pitch and front pitch are both odd and approximately equal to the pole pitch

D. Equalizing bus bars are used with parallel running of D.C. shunt generators