FAULT POINT SURVEY DEVICE AND FAULT POINT SURVEY METHOD

摘要

PROBLEM TO BE SOLVED: To perform the survey of both a ground fault point and a short-circuit fault point.;SOLUTION: A fault point survey device for surveying the fault points of a plurality of distribution lines includes: a device main body; a plurality of connection cables whose top ends are respectively connected to the plurality of distribution lines; and a DC current detection part for detecting DC currents flowing through the plurality of distribution lines. The device main body includes: a DC voltage generation part for generating a DC voltage; a plurality of switches having one ends to which the DC voltage is applied, and having the other ends that are respectively connected to the base end parts of the plurality of connection cables; a plurality of ground connection terminals for connecting the connection points of the plurality of switches and the plurality of connection cables to the ground; and a plurality of current measurement parts for measuring currents flowing between the connection points and the plurality of connection cables.;COPYRIGHT: (C)2015,JPO&INPIT