A system, in one embodiment, may include a system includes a ground fault detection system (36). The ground fault detection system (36) includes a linear filter (72) configured to receive one or more signals from a static starter system (16) during operations of the static starter system (16) and to produce a linear filter output. The ground fault detection system (36) further includes a rectifier (74) configured to rectify the linear filter output and to produce a rectifier output, and a gain system (76) configured to multiply the rectifier output by a factor to produce a gain output. The ground fault detection system (36) additionally includes a fault indicator system (80) configured to indicate a ground fault based on the gain output, wherein the ground fault detection system (36) is configured to command an action based on the ground fault.