Fremgangsmåte for deteksjon av en partiell utladning i en isolasjon for en elektrisk effektinnretning

摘要

47ABSTRACT OF THE DISCLOSUREIn an electric apparatus such as an electricpower cable system, a high frequency pulse is inducedon a conductive member such as a metal sheath, wherepartial discharge occurs in an insulation. The highfrequency pulse is detected by means of a bypass leadwire, a metal foil electrode, a detecting coil, and thelike provided on the electric apparatus withoutinterrupting a live operation of the electricapparatus.