Electrical Machines Field divertor method of speed control of a DC series motor gives speed above rated one due to reduction of Armature current. None of above. Line current. Field current. Armature current. None of above. Line current. Field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the DC Motor use flywheel? Differently compared motor. Series motor. Shunt motor. Cumulatively compound motor. Differently compared motor. Series motor. Shunt motor. Cumulatively compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc motor with armature resistance of 0.5 ohms connected directly to a 230 Volt supply. If the armature is stationary then the current flowing through armature is 340 A. 460 A. 250 A. 570 A. 340 A. 460 A. 250 A. 570 A. 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. 24.11 kW. 26.21 kW. 25 kW. 23.06 kW. 24.11 kW. 26.21 kW. 25 kW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer which of the following losses are zero? Copper loss All of these Iron loss Rotational loss Copper loss All of these Iron loss Rotational loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The ventilating ducts in most of DC machine are none of these. radial. radial as well as longitudinal. longitudinal. none of these. radial. radial as well as longitudinal. longitudinal. ANSWER DOWNLOAD EXAMIANS APP
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