Electrical device protection circuit for smart grid

摘要

An electrical device protection circuit for a smart grid includes a detection unit for detecting whether or not the output power source of an electrical device short-circuits; a switch unit for connecting power, input to the electrical device, to the output power source of the electrical device or disconnect it therefrom; and a control unit for generating a control signal for making the switch unit disconnect the power input to the electrical device from the output power source of the electrical device. According to the electrical device protection circuit for a smart grid, a simply configured protection circuit, arranged in the electrical device, operates when the output power source of the electrical device short-circuits, whereby the electrical device may be prevented from being damaged.