The power factor of a synchronous motor
A. improves with increase in excitation and may even become leading at higher excitation.
B. decreases with increase in excitation.
C. is independent of excitation.
D. increases with loading for a given excitation. [I.E.S. E.E.-II, 2002]
Answer:A
The power factor of a synchronous motor
A. improves with increase in excitation and may even become leading at higher excitation. B. decreases with increase in excitation. C. is independent of excitation. D. increases with loading for a given excitation. [I.E.S. E.E.-II, 2002]