Question 110Electricity & Electronics - 1st Asst/Chief

The correct answer is D) it will maintain the frequency of the system. When two AC generators with different speed droop settings are operating in parallel, the generator with the zero speed droop setting will maintain the system frequency. This is because the zero droop setting means the generator's governor will not allow the frequency to change, even as the load on the system changes. The other generator with a 5% droop setting will adjust its output to match the load, but the frequency will remain constant due to the zero droop generator. The other options are incorrect because: A) the zero droop generator will have excellent sensitivity characteristics, not poor; B) it will have excellent power response, not poor; and C) it will assume the larger share of the load, not the smaller.