Question

Consider a power system with three identical generators. The transmission losses are negligible. One generator (G1) has a speed governor which maintains its speed constant at the rated value while the other generators (G2 and G3) have governors with a droops of 5%. If the load of the system is increased, then in steady state.

• A. Generation of G2 adn G3 is increased equally while generation of G1 is unchanged.
• B. Generation of G1 alone is increased while generation of G2 and G3 is unchanged.
• C. Generation of G1, G2 and G3 is increased equally.
• D. Generation of G1, G2 and G3 is increased in the ratio 0.5 : 25 : 0.25

Answer 1

The correct option is B Generation of G1 alone is increased while generation of G2 and G3 is unchanged.

Generation of G1 alone is increased while generation of G2 and G3 is unchanged.