Electrical Machines What is the phase difference between two windings of A.C servomotor ? 30°. 60°. 120°. 90°. 30°. 60°. 120°. 90°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the speed of a dc motor increases with load torque, then it is a comulatively compounded motor differentially compounded motor series motor permanent magnet motor comulatively compounded motor differentially compounded motor series motor permanent magnet motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V DC machine has an armature resistance 1Ω. If the full load current is 20 A, the difference of induced voltage and generator is 0 V. 60 V. 40 V. 20 V. 0 V. 60 V. 40 V. 20 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed, is 230 V 115 V 460 V 200 V 230 V 115 V 460 V 200 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of 3 - Φ IM, plugging means starting the motor on load which is more than the rated load. interchanging two supply phases for quick stopping. pulling the motor directly on line without a rotor. locking of rotor due to harmonics. starting the motor on load which is more than the rated load. interchanging two supply phases for quick stopping. pulling the motor directly on line without a rotor. locking of rotor due to harmonics. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Width of a carbon brush should be equal to less than the width of commutator segment. the width more than 3 commutator segment. the width of the 1 to 2 commutator segment. the width of the 2 to 3 commutator segment. less than the width of commutator segment. the width more than 3 commutator segment. the width of the 1 to 2 commutator segment. the width of the 2 to 3 commutator segment. ANSWER DOWNLOAD EXAMIANS APP
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