Electrical Machines A 3 - Φ, 6 pole, 50 Hz IM has a rotor speed of 987 rpm find rotor frequency? 0.75 Hz. 0.70 Hz. 0.65 Hz. 60 Hz. 0.75 Hz. 0.70 Hz. 0.65 Hz. 60 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction effect is more in which of the following methods? None of these same in both methods field weakening method armature resistance control None of these same in both methods field weakening method armature resistance control ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The dc motor which can provide zero speed regulation at full load without any controller, is cumulative compound. series. shunt. differential compound. cumulative compound. series. shunt. differential compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator core of a 3 - Φ induction motor is laminated in order to reduce the hysteresis loss. both of the above. eddy current loss. weight of the stator. hysteresis loss. both of the above. eddy current loss. weight of the stator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. decreases increases remains unaffected any of the above decreases increases remains unaffected any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On which of the following factor/factors the speed of a DC motor depends upon? Applied voltage. All of these. Field flux. Armature current. Applied voltage. All of these. Field flux. Armature current. ANSWER DOWNLOAD EXAMIANS APP
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