Patent ID: 6400130
Filing Date: 2002-06-04
Classification: G01R

Abstract:
A current sensor assembly for an electronic electricity meter, said sensor assembly comprising:a current sensor having a central axis extending therethrough, said sensor further including a core with a sensing winding wound around said core to form a sensing coil, said sensing coil and said core being substantially toroidal shaped to form a central opening through said sensor about said axis; and at least two substantially symmetric non-diagonal conductors passing through said opening asymmetrically with respect to said current sensor, each of said conductors being configured to carry a current in the same direction through said sensor and being spaced so that the middle of a line joining the centers of said conductors is located approximately at the center of said current sensor assembly, each of said conductors comprising: a first portion extending substantially perpendicular to said axis; a second portion extending from said first portion toward said opening and being substantially perpendicular to said axis; a third portion extending from said second portion substantially parallel to said axis and extending through said opening; a fourth portion extending from said third portion away from said opening and being substantially perpendicular to said axis; a fifth portion extending from said fourth portion substantially perpendicular to said axis; and a sixth portion extending from said fifth portion substantially parallel to said axis.