Electrical Machines A 4 pole DC generator rotates at 1500 rpm. How many times in a second, will the emf induced in each armature conductor changes its direction? 200. 100. 750. 500. 200. 100. 750. 500. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In Ward-Leonard system, the lower limit of the speed imposed by Residual magnetism of the generator. None of above. Armature resistance. Field resistance. Residual magnetism of the generator. None of above. Armature resistance. Field resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For high current and low voltage rating which winding is employed to DC machine? Both wave and lap winding. Wave winding. No wave and lap winding. Lap winding. Both wave and lap winding. Wave winding. No wave and lap winding. Lap winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a conductively compensated DC series motor, the compensating winding is provided In parallel with the field winding. In parallel with the armature winding. In series with the armature winding. As a separate unit. In parallel with the field winding. In parallel with the armature winding. In series with the armature winding. As a separate unit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator core of a 3 - Φ induction motor is laminated in order to reduce the eddy current loss. weight of the stator. both of the above. hysteresis loss. eddy current loss. weight of the stator. both of the above. hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed in a cylindrical synchronous machine depends on load angle excitation synchronous reactance both 1and 2 load angle excitation synchronous reactance both 1and 2 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS