Electrical Machines When the rotor of a 3 phase induction motor is blocked then the slip is 1. 0.7. 0.54. 0.3. 1. 0.7. 0.54. 0.3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Quadrature axis synchronous reactance is the ratio of Vmax to Imin. Vmax to Imax. Vmin to Imin. Vmin to Imax. Vmax to Imin. Vmax to Imax. Vmin to Imin. Vmin to Imax. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor will none of these. remains same. increase. Decrease.d none of these. remains same. increase. Decrease.d ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output voltage of a DC generator is E = V + Ia. E = V – IaRa. E = V + Ra. E = V + IaRa. E = V + Ia. E = V – IaRa. E = V + Ra. E = V + IaRa. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the advantages of parallel operation of alternators? Increase in reliability continuity supply is maintained Increase efficiency under light load conditions All of these Increase in reliability continuity supply is maintained Increase efficiency under light load conditions All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In large sized DC machines the compensating windings are provided to neutralize voltage induced in coil due to fluctuation of l reduce eddy current losses by providing local short circuits. None of these compensate for the decrease in speed due to increase of load. neutralize voltage induced in coil due to fluctuation of l reduce eddy current losses by providing local short circuits. None of these compensate for the decrease in speed due to increase of load. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS