Electrical Machines A 8-pole, DC generator has a simplex wave-wound armature containing 32 coils of 6 turns each. Its flux per pole is 0.06 Wb. The machine is running at 250 rpm. The induced armature voltage is 384 V 768 V 192 V 96 V 384 V 768 V 192 V 96 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous motor can be started by any of the above methods. coupling it with a DC compound motor. coupling it with a small AC induction motor called the pony motor. providing damper winding in its rotor circuit. any of the above methods. coupling it with a DC compound motor. coupling it with a small AC induction motor called the pony motor. providing damper winding in its rotor circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series generators are used in which of the following applications? Arc welding. Used as boosters in dc distribution or transmission. Air crafts. All of these Arc welding. Used as boosters in dc distribution or transmission. Air crafts. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase induction motor, the starting torque developed is proportional to 1/V 1/V² V² supply voltage V 1/V 1/V² V² supply voltage V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principle of operation of a 3 - Φ induction motor is almost similar to that of transformer with secondary short circuited. repulsion start induction motor. synchronous motor. capacitor start induction motor. transformer with secondary short circuited. repulsion start induction motor. synchronous motor. capacitor start induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has a rotor resistance of 0.002 Ω / phase. If the resistance is increased to 0.004 Ω / phase then the maximum torque will increase by 200% increase by 100% reduced to half remain unaltered increase by 200% increase by 100% reduced to half remain unaltered ANSWER DOWNLOAD EXAMIANS APP
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