Electrical Machines
The result of slip test on a 3-phase, 20 KVA, 400 V, 50 Hz connected salient pole alternator is given below- Phase value: Vmax = 100 V, Vmin = 96 V, Imax = 10 A and I min = 7 A. The direct and quadranature axis reactances are respectively

 14.28 and 9.60 Ω.
 8.248 and 5.54 Ω.
 8.248 and 9.60 Ω.
  14.28 and 5.54 Ω.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following represents the commutator pitch?

 Number of commutator segments between two successive coils.
 Number of conductors spanned by one coil at the front end of the armature.
 The distance between the staring of first coil and its next successive coil
 Number of conductors spanned by one coil at the back end of the armature.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electrical Machines