How many poles should the alternators driven by the oil engines and hydraulic turbine prime movers must have, for better operation?
A. fewer number of poles
B. larger number of poles
C. medium number of poles
D. any of the mentioned
Answer:A
How many poles should the alternators driven by the oil engines and hydraulic turbine prime movers must have, for better operation?
A. fewer number of poles B. larger number of poles C. medium number of poles D. any of the mentioned