Patent ID: 8676386

Claim:
A fault detection system, comprising: a generator; a power converter selectively connected to the generator that is selectively activated to produce a test voltage; a breaker located between the generator and the power converter for selectively connecting the generator to the power converter, the breaker including an open position and a closed position; a current monitoring device located between the generator and the power converter, the current monitoring device measuring a line current; and a control module in communication with the current monitoring device, the breaker, and the power converter, and control module having a memory with a threshold current value stored therein, the control module comprising: a control logic for monitoring the breaker to determine if the breaker is in one of the open position and the closed position; a control logic for activating the power converter to produce the test voltage if the breaker is in the open position; a control logic for monitoring the current monitoring device for the line current; a control logic for determining if the line current is greater than the threshold current during a period of time while the test voltage is being produced; and a control logic for determining that a fault is present if the breaker is in the open position and if the line current is greater than the threshold current.