Electrical Machines A synchorous generator connected to an infinite bus is over excited. Considering only the reactive power from the point view of the system the machine acts as A capacitor. None of these. an inductor. A resistor. A capacitor. None of these. an inductor. A resistor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction of an unsaturated DC machine is crossmagnetising. demagnetising. magnetising. none of above. crossmagnetising. demagnetising. magnetising. none of above. 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% remain unaltered reduced to half increase by 100% increase by 200% remain unaltered reduced to half increase by 100% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 1-phase induction motor, if the forward torque slip is S, what is the backward torque slip? S 1-S 1/S 2-S S 1-S 1/S 2-S ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The inertia constant H of a synchronous condenser is greater than that of turbo alternator. equal to that of the effective length of the line. greater than that of hydro generator. none of these. greater than that of turbo alternator. equal to that of the effective length of the line. greater than that of hydro generator. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________. 8. 6. 4. 2. 8. 6. 4. 2. ANSWER DOWNLOAD EXAMIANS APP
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