Electrical Machines Which of following winding is connected in series with armature winding of DC machine? Both Compensating and Commutating pole winding. Compensating winding. Commutating pole winding. Auxiliary winding. Both Compensating and Commutating pole winding. Compensating winding. Commutating pole winding. Auxiliary winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature mmf of a DC machine has trapezoidal space distribution and is stationary in space. stepped distribution and rotates at the speed of armature. triangular space distribution and rotates at the speed of armature. triangular space distribution and is stationary in space. trapezoidal space distribution and is stationary in space. stepped distribution and rotates at the speed of armature. triangular space distribution and rotates at the speed of armature. triangular space distribution and is stationary in space. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the a 230 V DC motor of armature resistance 0.5 Ω and back emf 200 V is 60 40 600 660 60 40 600 660 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are effects of armature reaction? increase the maintenance and repair All of these increases the design cost increase the iron loss increase the maintenance and repair All of these increases the design cost increase the iron loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an auto transformer, for what value of turn ratio, power transferred by inductively and conductively are same? any of the above 0.5 0 1 any of the above 0.5 0 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load current in a transformer lags the applied voltage by about 75°. about 115°. 0°. 90°. about 75°. about 115°. 0°. 90°. ANSWER DOWNLOAD EXAMIANS APP
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