The main factor that leads to unstable parallel operation of flat or over compounded dc generators is
A. their rising voltage characteristics.
B. unequal series field resistances.
C. unequal speed regulation of their prime movers.
D. their drooping voltage characteristics.
Answer:A
The main factor that leads to unstable parallel operation of flat or over compounded dc generators is
A. their rising voltage characteristics. B. unequal series field resistances. C. unequal speed regulation of their prime movers. D. their drooping voltage characteristics.