Fault current limiting method through the application of superconducting fault current limiter into the neutral line of power system

摘要

PURPOSE: A fault current limiting method using a superconductive current limiter in a neutral line of a power system is provided to perform a current limiting operation about an asymmetrical ground fault by installing a superconductive current limiter to a neutral line of a power system. CONSTITUTION: An asymmetrical fault current is limited from an asymmetrical ground fault like one line ground fault or two lines ground fault by applying a superconductive current limiter to a neutral line of a power system having Y-wired neutral line ground. An indirect current limiting operation of the superconductive current limiter is performed from the fault current having an asymmetrical ground component by connecting the neutral line and the superconductive current limiter in a first side and a second side of an insulation transformer.