Intelligent fault isolation device and operating method thereof

Abstract

It is disclosed that an intelligent fault isolation device capable of rapidly and accurately detecting faults based on an inclination angle of fault currents according to a line impedance and an operating method thereof. The intelligent fault isolation device that minimizes power failure sections in a low-voltage direct current (LVDC) distribution system includes a plurality of hardware device units and a software device unit. The hardware device units provide a transmission path for current applied from a converter side to a consumer side. The software device unit calculates an inclination angle of a fault current in consideration of the line impedance of each section and determines that a fault has occurred in section n to limit the fault current in the operation mode of the hardware device unit corresponding to the section among the hardware device units.

Dependencies are inferred from the claim text.