Electrical Machines Hunting in a synchronous cannot be due to windage friction. variable load. variable frequency. variable supply voltage. windage friction. variable load. variable frequency. variable supply voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase slip ring induction motor is wound for 4 poles on stator and 6 poles on the rotor. When 3-phase balanced voltage source at 50 Hz is applied, it will run at 1000 rpm 750rpm 1500 rpm zero speed 1000 rpm 750rpm 1500 rpm zero speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a short circuit test on a transformer is performed at 25 V, 50 Hz, the drawn current is I1. If the test is performed by 25 V and 25 Hz and power drawn current is I2, then I1 = I2 I1 > I2 I1 < I2 None of these I1 = I2 I1 > I2 I1 < I2 None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will any of the above. remain constant. increase. decrease. any of the above. remain constant. increase. decrease. 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 Increase. Decrease. Remains same. None of these. Increase. Decrease. Remains same. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip exists in synchronous motor. none of above. in both machines. induction motor. synchronous motor. none of above. in both machines. induction motor. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS