Electrical Machines In which of the following motors DC excitation is not required? reluctance motor hysteresis motor 3-phase synchronous generator 3-phase synchronous motor reluctance motor hysteresis motor 3-phase synchronous generator 3-phase synchronous motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator can be considered as rotating amplifier. prime mover. rectifier. power pump. rotating amplifier. prime mover. rectifier. power pump. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, armature reaction refers to what? Effect of armature flux on the main field flux. None of these Effect of field flux on the armature flux. Effect of armature flux on the load. Effect of armature flux on the main field flux. None of these Effect of field flux on the armature flux. Effect of armature flux on the load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator, when driven without any excitation, showed an open circuit voltage of 12 V. When the field winding was excited, the voltage dropped to zero. It happened because there was no residual magnetism in the field circuit field winding was wrongly connected field resistance was higher than critical resistance there was a break in the armature circuit there was no residual magnetism in the field circuit field winding was wrongly connected field resistance was higher than critical resistance there was a break in the armature circuit ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is unity zero leading lagging unity zero leading lagging ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an induction machine is run at above the synchronous speed it acts as None of these an induction generator an induction motor a synchronous motor None of these an induction generator an induction motor a synchronous motor ANSWER DOWNLOAD EXAMIANS APP
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