Two similar synchronous generators are working in parallel to supply a common load demand with identical excitations and steam supplies to their prime movers. Now, if the steam supply to the prime mover of one of the generators is increased compared to the other, with field excitation kept unchanged, then
A. its active power component will remain the same but the reactive power contribution will increase.
B. its active power will decrease while the reactive power will increase.
C. both active and reactive components of power will increase.
D. its active power contribution will increase but reactive power contributions of both will remain unchanged. [I.E.S. E.E.-II, 1993]
Answer:D
Two similar synchronous generators are working in parallel to supply a common load demand with identical excitations and steam supplies to their prime movers. Now, if the steam supply to the prime mover of one of the generators is increased compared to the other, with field excitation kept unchanged, then
A. its active power component will remain the same but the reactive power contribution will increase. B. its active power will decrease while the reactive power will increase. C. both active and reactive components of power will increase. D. its active power contribution will increase but reactive power contributions of both will remain unchanged. [I.E.S. E.E.-II, 1993]