Patent ID: 6489782
Filing Date: 2002-12-03
Classification: G01R,H02B

Abstract:
A partial discharge sensor, comprising:an electrical insulator; a live side metal insert disposed within said electrical insulator for supporting an electrical conductor external of said electrical insulator; a live side electrode disposed within said electrical insulator in a condition of electrical continuity with said live side metal insert; an electrostatic shield disposed within said electrical insulator in a condition of electric field continuity with said live side electrode; a ground side electrode for supporting said electrical insulator disposed within said electrical insulator in a condition of electrical continuity with said electrostatic shield; a current transformer secondary winding disposed within said electrical insulator in a condition of electromagnetic continuity with said ground sided electrode; a ferrite current transformer core disposed within said electrical insulator in a condition of electromagnetic continuity with said current transformer secondary winding; and a current transformer secondary winding lead interconnected with said current transformer secondary winding for conducting electrical in said current transformer secondary winding to a region outside of said electrical insulator.