CURRENT SENSORS AND ASSOCIATED MEASUREMENT SYSTEMS

This current sensor (6) includes: - an insulating substrate (10) provided with a central opening (12); 5 - a Rogowski winding (14) surrounding the central opening and including a first coil (16) and a second coil (18) which are superposed and electrically connected in series, the first coil and the second coil being wound around the substrate along a first contour line (Cl) and a second contour line (C2), respectively, each contour line defining, in the plane of the substrate, a contour in the shape of a quadrilateral centred on the central opening; 0 wherein the length (LI) of the contour in the shape of a quadrilateral defined by the first contour line (Cl) is greater than the length (L2) of the quadrilateral defined by the second contour line (C2) and the width (f1) thereof is smaller than the width (2) of the quadrilateral defined by the second contour line (C2).