Electrical Machines In salient pole synchronous machine, the reluctance power varies as cosδ cos2δ sin2δ sinδ cosδ cos2δ sin2δ sinδ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which DC motor will have least percentage increase of input current, for the same percentage increase in the torque Separately Excited DC Motor Compound Wound DC Motor DC Series Motor DC Shunt Motor Separately Excited DC Motor Compound Wound DC Motor DC Series Motor DC Shunt Motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase 6 pole 50 Hz induction motor is running at 5% slip.What is the speed of the motor? 850 rpm 950 rpm 900 rpm 1000 rpm 850 rpm 950 rpm 900 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions is a dc motor provided with compensating winding used ? 1. Wide range of speed control above normal 2. Wide range of steady load variation with no speed control 3.Wide range of rapid variation in load Select the correct answer using the codes given below : Codes : 2 and 3 1 and 3 1, 2 and 3 1 and 2 2 and 3 1 and 3 1, 2 and 3 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A belt-driven cumulatively-compound dc generator is delivering power to the dc mains. If the Belt snaps then the machine will run as a cumulative compounded motor in the same direction differentially compounded motor in the opposite direction cumulative compounded motor in opposite direction differentially compounded motor in the same direction cumulative compounded motor in the same direction differentially compounded motor in the opposite direction cumulative compounded motor in opposite direction differentially compounded motor in the same direction ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the emf generated by a 4 pole Lap connected DC Motor rotating at 1500 rpm having 1000 conductors and useful flux per pole is 0.4 mWb. 20 volts. 40 volts. 10 volts. 30 volts. 20 volts. 40 volts. 10 volts. 30 volts. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS