Electrical Machines A 4 pole, 3-phase induction motor is running at 4% slip at full load. If the speed of the motor is 720 rpm, the supply frequency is 40 HZ 60 Hz 50 Hz 25 Hz 40 HZ 60 Hz 50 Hz 25 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which method is less recommendable for induction motor starting in the industries? Stator resistance starting. Rotor resistance starting. Direct online starting. Auto transformer starting. Stator resistance starting. Rotor resistance starting. Direct online starting. Auto transformer starting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 2 and 1 2 and 2 4 and 2 4 ang 1 2 and 1 2 and 2 4 and 2 4 ang 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Silicon content in steel lamination is kept within 5% as it increases hysteresis loss. makes the material brittle. Increases cost. All of these increases hysteresis loss. makes the material brittle. Increases cost. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Secondary winding of an auto transformer is also called damping winding. common winding. compensating winding. tertiary winding. damping winding. common winding. compensating winding. tertiary winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Thin laminations are used in a machine in order to reduce Hysteresis losses Eddy current losses Both 1 and 2 Copper losses Hysteresis losses Eddy current losses Both 1 and 2 Copper losses ANSWER DOWNLOAD EXAMIANS APP
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