In a system without droop or incorrectly set droop, a load increase will cause the engine to slow down. The governor will respond by increasing the fuel until the engine speed has returned to the original speed. Due to the combined properties of inertia and power lag, the engine speed will continue to increase beyond the original speed setting, causing an overshoot in speed. The governor again will respond to decrease speed to correct for the overshoot. It will over-correct the speed in the other direction causing an undershoot. This overcorrection of speed in both directions (instability) will amplify until the engine trips out on overspeed.
Негізгі бет Governor - instability/droop issue.
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