Electrical Machines The heat generated in the transformer is dissipated mainly by convection. All of these radiation. conduction. convection. All of these radiation. conduction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At the instant of starting, the per unit slip of 3 - Φ induction motor is 0.05. 0.5. 1.0. 0.1. 0.05. 0.5. 1.0. 0.1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor winding for a 3-phase slip-ring induction motor having delta-connected stator must be connected in delta. None of these star. delta or star according to need. delta. None of these star. delta or star according to need. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous motor can be started by coupling it with a DC compound motor. any of the above methods. providing damper winding in its rotor circuit. coupling it with a small AC induction motor called the pony motor. coupling it with a DC compound motor. any of the above methods. providing damper winding in its rotor circuit. coupling it with a small AC induction motor called the pony motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The sparking at the the brushes, in a DC machines is due to presence of commutator. armature reaction. reactance voltage. high resistance of carbon brushes. presence of commutator. armature reaction. reactance voltage. high resistance of carbon brushes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In star-delta starting of squirrel cage induction motor compared to DOL starting the starting current and torque are 1/3, 1/√3 1/√3, 1/√3 1/3, 1/3 1/√3, 1/3 1/3, 1/√3 1/√3, 1/√3 1/3, 1/3 1/√3, 1/3 ANSWER DOWNLOAD EXAMIANS APP
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