Electrical Machines In a synchronous motor, damper windings are provided on stator frame. pole faces. rotor shaft. None of these stator frame. pole faces. rotor shaft. None of these ANSWER DOWNLOAD EXAMIANS APP
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 resistor. an inductor. None of these. A capacitor. A resistor. an inductor. None of these. A capacitor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 2 and 2 4 ang 1 4 and 2 2 and 1 2 and 2 4 ang 1 4 and 2 2 and 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shunt generator is running at 1000 rpm. If flux is reduced by half, then what is the new speed? 1000. 2000. 500. 0. 1000. 2000. 500. 0. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An unexcited single phase synchronous motor is universal motor. reluctance motor. repulsion motor. AC series motor. universal motor. reluctance motor. repulsion motor. AC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If Kh is hysteresis constant, f is supply frequency, Bm maximum flux density in core of transformer, the expression of hysteresis loss in transformer, is given by KhfBm. KhfBm3. KhfBm1.6. Khf2Bm1.6. KhfBm. KhfBm3. KhfBm1.6. Khf2Bm1.6. ANSWER DOWNLOAD EXAMIANS APP