Abstract: A fault control system in a machine is provided. The machine may include a double wound AC alternator that includes a first neutral and a second neutral. The fault control system includes a phase fault control circuit connected across the first neutral and the second neutral of the double wound AC alternator. The phase fault control circuit is adapted to generate a control signal for a control system upon detecting a voltage difference between the first neutral and the second neutral. The fault control system includes a voltage divider circuit having a pair of current limiting resistors is connected parallel across the first neutral and the second neutral. The fault control system also includes a ground fault detection circuit to detect a ground fault. The voltage divider circuit precludes the ground current flowing to the phase fault control circuit when a voltage difference between the current limiting resistors is zero.