병행 2회선 송전선로에서의 고장점 표정 알고리즘

A Fault Location Algorithm of a Double-Circuit Line

Fault location algorithms based on the current distribution factors under the one-phase to earth fault condition of a double-circuit line are presented. The derivation method for current distribution factors is showed, to calculate fault current, fault resistance and the zero sequence current of other parallel circuit which are unknown. As the proposed algorithms 1,2,3 embodies an accurate location by the voltage and the current of the relaying point.