Locating of partial-discharge-generating faults

摘要

A method of locating incipient faults that generate partial discharges in an AC power distribution system is disclosed, comprising the steps of: - detecting at least one spike (21) in a PD pattern (pC) generated by such system (10); - getting the voltage wave (kV) of the AC power in the system; - detecting a phase (&phgr;) of such spike (21) with respect to the voltage (kV) of the AC power; - locating an incipient fault (20) where such phase (&phgr;) is below a predetermined threshold (&phgr;