The power factor at which a paralleled AC generator operates is usually adjusted by the ().
A、connected load
B、prime mover speed
C、field excitation
D、generators rated voltage
A、connected load
B、prime mover speed
C、field excitation
D、generators rated voltage
A、A.Circulating currents are kept to a minimum B、B.Field excitation losses are kept to a minimum C、C.Generator rotors will have a lesser tendency to hunt D、D.Because a power factor increase will decrease kilowatt output
A、 UPS form factor B、 Server form factor C、 Server power supplys wattage rating D、 Desired runtime
A、save network cost B、improve the reliability of supplying power to important load C、prevent sequence reverse D、increase the power factor of important load