Woodward EPG

The EPG (electrically powered governor) system is designed for precise speed control of diesel, gas, gasoline engines, and gas turbines. The governor is especially suited to prime movers without a mechanical drive or hydraulic oil supply for the governor and which have low-mass, lowfriction fuel linkages. Controls are built with dynamics designed for specific engine applications.

The 512/524 and 1712/1724 EPGs are three component governing systems for 12 or 24 Vdc operation. All EPG systems include an actuator, an electronic speed control, and magnetic pickup.

In operation, the control compares the speed of the engine with the desired speed or desired load and sets the actuator position to correct discrepancies. Gain and stability adjustments tailor the governor’s response to the specific engine. EPG controllers with switch-selected dynamics allow stable operation at no load and brisk response when the unit is heavily loaded.