Device protects equipment against ground faults

摘要

ABB has introduced the F200 Ground Fault Equipment Protector (GFEP) (FIG, 4), designed to protect equipment against damaging line-to-ground currents by disconnecting all ungrounded conductors of the faulted circuit. A ground fault is caused by an insulation loss between a live conductor and an exposed conductive part that creates a flow of current to the ground.