Electrical Machines The slip of an induction motor during DC rheostatic braking is s. 2 - s. 2 + s. 1 - s. s. 2 - s. 2 + s. 1 - s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque angle of a synchorous machine operating from a constant voltage bus is usually defined as the space angle between Stator mmf wave and resultant mmf wave. Rotor mmf wave and stator mmf wave. Stator mmf wave and resultant flux density. Rotor mmf wave and resultant flux density wave. Stator mmf wave and resultant mmf wave. Rotor mmf wave and stator mmf wave. Stator mmf wave and resultant flux density. Rotor mmf wave and resultant flux density wave. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance. none of above both A and B armature circuit shunt field none of above both A and B armature circuit shunt field ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating windings are used in DC generators to provide path for the circulation of cooling air. None of these to neutralize the cross magnetizing effect of the armature reaction. mainly to reduce the eddy currents by providing local short circuit. to provide path for the circulation of cooling air. None of these to neutralize the cross magnetizing effect of the armature reaction. mainly to reduce the eddy currents by providing local short circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator core of a 3 - Φ induction motor is laminated in order to reduce the both of the above. weight of the stator. hysteresis loss. eddy current loss. both of the above. weight of the stator. hysteresis loss. eddy current loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For satisfactory performance of 3-phase 480V, 60 Hz induction motor, the supply voltage at 50 Hz should be equal to 350 V. 480 V. 400 V. 420 V. 350 V. 480 V. 400 V. 420 V. ANSWER DOWNLOAD EXAMIANS APP
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