Electrical Machines A 440 V, 3-phase, 10 pole and 50 HZ synchronous motor delivering a torque of 50 N-m, delivers a power of 500W 100W 1000W 3000W 500W 100W 1000W 3000W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately excited DC motor has an armature resistance of 0.5 Ohm. The supply voltage is 250V. Armature current is 20A and the speed of rotation is 1500 rpm. Find the torque developed? 16.55 Nm Zero 15.6 Nm 15.28 Nm 16.55 Nm Zero 15.6 Nm 15.28 Nm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque developed in the rotor is directly proportional to slip inversely proportional to slip either of these not dependent on the slip directly proportional to slip inversely proportional to slip either of these not dependent on the slip ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In Ward-Leonard method of speed control, the direction of rotation of motor is reversed usually reversing the connection of the generator field terminal. motor field terminal. generator armature terminal. motor armature terminal. generator field terminal. motor field terminal. generator armature terminal. motor armature terminal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The squirrel cage induction motors are provided with blades in order to eliminate noise. balance the rotor dynamically. facilitate cooling of rotor. none of these. eliminate noise. balance the rotor dynamically. facilitate cooling of rotor. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statement is correct, if short circuit ratio is high? Low short circuit current High voltage regulation None of these Good voltage regulation Low short circuit current High voltage regulation None of these Good voltage regulation ANSWER DOWNLOAD EXAMIANS APP
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