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 60 Hz 40 HZ 50 Hz 25 Hz 60 Hz 40 HZ 50 Hz 25 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On what factors the speed of dc motor depends? Armature current Ia. All of these. Field flux. Applied voltage. Armature current Ia. All of these. Field flux. Applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An alternator is feeding an infinite busbar. Its prime mover is suddenly shutdown. The alternator will start working as induction motor. continue to work as alternator but the direction of rotation will reverse. continue to work as synchronous motor with same direction of rotation. come to stand still. start working as induction motor. continue to work as alternator but the direction of rotation will reverse. continue to work as synchronous motor with same direction of rotation. come to stand still. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected through inductive coupling in series either of these depending on the design of the motor in parallel through inductive coupling in series either of these depending on the design of the motor in parallel ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformers operating in parallel will share the load depending upon their rating. leakage reactance. efficiency. percentage impedance. rating. leakage reactance. efficiency. percentage impedance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor hunting can be reduced to minimum possible by providing damper winding in the rotor pole faces. any of above methods. designing the motor for adequate synchronizing power. using a flywheel. providing damper winding in the rotor pole faces. any of above methods. designing the motor for adequate synchronizing power. using a flywheel. ANSWER DOWNLOAD EXAMIANS APP
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