What is the function of a ground fault monitor?

The function of a ground fault monitor is to detect ground faults, which are unintended electrical paths between a source of current and the grounded surface. When a ground fault occurs, it can pose serious safety hazards, including electrical shocks. The ground fault monitor continuously monitors the electrical circuit for signs of a ground fault and, upon detection, it can automatically shut off power to the affected circuit. This rapid response minimizes the risk of serious injury or damage by ensuring that current does not continue to flow through faulty pathways that could lead to shock hazards.

The other options presented, while related to electrical systems, do not accurately represent the primary role of a ground fault monitor. Measuring electrical current, regulating voltage surges, or converting voltage levels are functions that pertain to other types of equipment or devices, but these are not the specific functions of a ground fault monitor.