Electrical Machines High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance. none of above both A and B shunt field armature circuit none of above both A and B shunt field armature circuit ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 400 V, 50 Hz, 30 Hp, three phase IM is drawing 50 A current at 0.8 p.f lagging. The stator and rotor copper losses are 1.5 KW and 900 W respectively. The friction and windage losses are 1050 W and core losses are 1200 W. The air gap power of the motor will be 23.06 kW. 26.21 kW. 25 kW. 24.11 kW. 23.06 kW. 26.21 kW. 25 kW. 24.11 kW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC series motor is best suited for electric traction as It is cheaper in cost. It develops high starting torque. It runs at very high speed at light load. It consume less power. It is cheaper in cost. It develops high starting torque. It runs at very high speed at light load. It consume less power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Speed of DC motor can be controlled by varying all of these. resistance of armature culture. its flux oer pole. applied voltage. all of these. resistance of armature culture. its flux oer pole. applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An ideal DC generated is one that has _____________ voltage regulation. negative. zero. positive. low. negative. zero. positive. low. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC generator rotates at 1500 rpm. How many times in a second, will the emf induced in each armature conductor changes its direction? 100. 200. 750. 500. 100. 200. 750. 500. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS