What is meant by Actuator Lock? What conditions put a governor into Actuator Lock?
Actuator Lock is the loss of the governor control via failure. It still allows the generator to be run, but with no governing controls. A loss of PT source, failure of speed signal, removal of any one of the governor electronic modules (65MI), activation of the governor test switch (43GT) or loss of redundant power supply (sensed by 27BX relay) will put the governor into Actuator lock.