The electrical stiffness of a synchronous generator connected to a very large grid can be increased by
A. increasing the excitation or power angle of the machine.
B. reducing the excitation or the synchronous reactance of the machine.
C. increasing the synchronous reactance of the machine.
D. operating the generator at a much lower MW level compared to the steady state limit. [I.E.S. E.E.-II 2002]
Answer:C
The electrical stiffness of a synchronous generator connected to a very large grid can be increased by
A. increasing the excitation or power angle of the machine. B. reducing the excitation or the synchronous reactance of the machine. C. increasing the synchronous reactance of the machine. D. operating the generator at a much lower MW level compared to the steady state limit. [I.E.S. E.E.-II 2002]