An Aircraft Differential-Voltage Cutout

Experience obtained with present multiengine aircraft electrical systems indicates a need for preventing interchange of current between generators when the system is operating at light loads. Such current interchange causes reverse-current cutouts of conventional design to connect and disconnect their respective generators to the system so rapidly that the action is called ``chatter.´´ Conventional cutouts connect the generator to the system when the generator voltage is above a pre-set value. The differential-voltage reverse-current cutout connects the generator to the system when the generator voltage is a pre-set value above the system voltage. A description is given on the design, operation, and advantages of a differential-voltage reverse-current cutout which prevents interchange of current between the generators.