| 摘要 |
A closed-loop current transducer comprising a magnetic circuit (4), a magnetic field detector (8), and a compensation coil assembly (6) configured to generate a magnetic field opposing a magnetic field created by an electrical current to be measured flowing in one or more primary conductors (2) extending through a central opening of the magnetic circuit. The magnetic circuit comprises a first branch (12), a second branch (14), and first and second end branches (16a, 16b), interconnecting the first and second branches such that the branches surround a central passage through which the one or more primary conductors may extend, the second branch forming a receptacle (22) that defines a cavity (28) extending in an axial direction A for receiving a sensing portion of the magnetic field detector, the second branch comprising two second branch portions (14a, 14b) separated by an interface resulting from the bringing together of opposed ends (31 a, 31 b) of a single piece magnetic circuit. |
