Patent ID: 7504820
Filing Date: 2009-03-17
Classification: G01R

Abstract:
1. Current measurement device equipped with at least one current sensor comprising: one magnetic circuit, as well as a plurality of windings opposite the magnetic circuit of which: at least one excitation winding charged with the excitation of the magnetic circuit, at least one “current” winding, which a current I to be measured is designed to pass through and which is capable of producing a given magnetic field, at least one detection winding, at least one “counter reaction” winding, separate from the detection winding and designed to produce a counter reaction magnetic field opposing the given magnetic field, among said counter reaction and current windings of the sensor is at least one first winding comprising a first plurality of conductive zones located opposite the magnetic circuit and connected to one another in parallel, coupled by magnetic coupling to at least one second winding comprising one second plurality of conductive zones located opposite the magnetic circuit and connected to one another in series.