Electrical Machines In a single phase induction motor, the starting torque developed is proportional to supply voltage V 1/V V² 1/V² supply voltage V 1/V V² 1/V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - φ induction motor running at full load which of these parameters is stationary with respect to the stator mmf wave? Stator winding. Both rotor and stator winding. Rotor mmf wave. Rotor winding. Stator winding. Both rotor and stator winding. Rotor mmf wave. Rotor winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A large series motor is never started without some mechanical on it because otherwise it will Open fuse or circuit breaker. Produce sparking at brushes. Draw too much current. Develop excessive speed and damage itself. Open fuse or circuit breaker. Produce sparking at brushes. Draw too much current. Develop excessive speed and damage itself. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 ,V 15 , kW 100 rpm shunt motor with armature resistance of 0.25 , W has a rated line current of 68 A and a rated field current of 2.2 A. The change in field flux required to obtain a speed of 1600 rpm while drawing a line current of 52.8 A and a field current of 1.8 A is 36.36% increase 36.36% decrease 36.36% increase 18.18% increase 36.36% increase 36.36% decrease 36.36% increase 18.18% increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The size of inter poles is small as compared to main poles. What is the reason? In order to get saturated. In order to not to get saturated. In order to get more flux. All of these In order to get saturated. In order to not to get saturated. In order to get more flux. All of these 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. providing damper winding in its rotor circuit. coupling it with a small AC induction motor called the pony motor. any of the above methods. coupling it with a DC compound motor. providing damper winding in its rotor circuit. coupling it with a small AC induction motor called the pony motor. ANSWER DOWNLOAD EXAMIANS APP
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