GATE Question Bank » EEE » ELECTRICAL MACHINES


 
A) Commulator action would otherwise not possible
B) Armature reaction demagnetizing action would other wire be more
C) Otherwise it would not be possible to place compensating winding in pole shoe
D) Self starting of D.C. motor would not be possible otherwise

 
A) Synchronous motor torque
B) Induction motor torque
C) Induction generator torque
D) No torque will develop


 
A) 3600 rpm
B) 3000 rpm
C) 600 rpm
D) 500 rpm

 
A) 1.0216 Vm  1.732 Vm 
B) 1.023 Vm, 1.231 Vm     
C) 0.722 Vm, 1.225 Vm
D) 1.225 Vm  0.722 Vm

 
A) 0.98
B) 0.951
C) 0.851
D) 1.05


 
A) cos 2250
B) sin 2250
C) cos 450
D) sin 450

 
A) E1 = E2           P1 = 1.15 P2 
B) E1 = 1.15 E2   P1 = 1.15 P2 
C) E1 = 1.15 E1   P1 = 1.15 P2 
D) E2 = 1.15 E1   P2 = 1.15 P1 

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