System and method for determining a position of a single phase fault to ground in a feeder line

摘要

A system and a method for determining a position of a single phase fault to ground in a feeder line are provided. The feeder line is electrically connected to an electrical substation via a substation bus. The system includes first and second sensors electrically coupled to a transformer in the electrical substation. The system further includes a processor that determines a reactance value based on measured electrical characteristics and a predetermined constant. The processor accesses a table having a plurality of position identifiers associated with positions on the feeder line, and a plurality of reactance component values corresponding to positions on the feeder line relative to the substation bus. The processor selects a first reactance component value from the plurality of reactance component values in the table to determine the position of a fault.