Electrical Machines Compensating winding is placed in the armature core All of these main field pole shoe armature core All of these main field pole shoe ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The external resistance to be added in the armature circuit to limit the armature current to 125% of its rated value is 31.9 Ω 15.9 Ω 31.1 Ω 15.1 Ω 31.9 Ω 15.9 Ω 31.1 Ω 15.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The condition for maximum running torque is unity zero R = S.X 0.5 lagging 0.707 lagging unity zero R = S.X 0.5 lagging 0.707 lagging ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machines have highest power factor with respect to magnetizing current? Semi closed slot type machine. Closed slot type machines. Open slot type machines. Any of the above. Semi closed slot type machine. Closed slot type machines. Open slot type machines. Any of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor operates in stable region at which of the following slip? both 1 and 2 unity slip high slip region low slip region both 1 and 2 unity slip high slip region low slip region ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the ripples in the direct emf generated are reduced by employing graphite brushes. commutator with large number of segments. carbon brushes. equalizer rings. graphite brushes. commutator with large number of segments. carbon brushes. equalizer rings. ANSWER DOWNLOAD EXAMIANS APP
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