Arrangement for Measuring the Current Flowing in an Electric Conductor

Abstract

The invention relates to an arrangement for measurement of a current flowing in an electrical conductor having a magnetic circuit, for coupling to the electrical conductor, wherein the magnetic circuit has an air gap. A magnetic-field-sensitive component is located in the air gap in the magnetic circuit and is used to measure the magnetic field produced by the electrical conductor. Two control cores are arranged in the air gap in the magnetic circuit, wherein the control cores each have a control winding for magnetic saturation of the respective control core. The magnetic-field-sensitive component is arranged between the control cores and one or more additional elements are located in the vicinity of the magnetic-field-sensitive component, and are suitable for guidance of disturbing magnetic fields in the vicinity of the magnetic-field-sensitive component, independent of the control cores.

Dependencies are inferred from the claim text.