Electrical Machines The output power of any electrical motor is taken from the Coupling mounted on the shaft. Armature. Motor frame. Field. Coupling mounted on the shaft. Armature. Motor frame. Field. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A delta/star transformer is connected in parallel to a star/delta transformer. The turn ratio former is x times latter, the x is 1/3 1/√3 √3 3 1/3 1/√3 √3 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An alternator is feeding an infinite busbar. Its prime mover is suddenly shutdown. The alternator will come to stand still. continue to work as synchronous motor with same direction of rotation. start working as induction motor. continue to work as alternator but the direction of rotation will reverse. come to stand still. continue to work as synchronous motor with same direction of rotation. start working as induction motor. continue to work as alternator but the direction of rotation will reverse. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field weakening control method is used for the _________ ? None of these below rated speed both A and B above rated speed None of these below rated speed both A and B above rated speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 6 pole lap connected DC generator with 480 conductors has armature resistance of 0.06 Ω. If the conductors are reconnected to from a wave winding other things remaining unchanged, the value of armature resistance will be 0.01 Ω. 0.06 Ω. 0.54 Ω. 0.54 Ω. 0.01 Ω. 0.06 Ω. 0.54 Ω. 0.54 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following methods are suitable for the speed control of squirrel cage induction motor? 1. Voltage control. 2. Frequency control. 3. Pole changing method. 4. Rotor resistance control select the correct answer using the codes given below:- 2 and 4. 1, 2 and 3. 2, 3 and 4. 1, 3 and 4. 2 and 4. 1, 2 and 3. 2, 3 and 4. 1, 3 and 4. ANSWER DOWNLOAD EXAMIANS APP
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