The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 2016
Filed:
Oct. 24, 2012
Lem Intellectual Property SA, Fribourg, CH;
Wolfram Teppan, Wünnewil, CH;
Stéphane Claeys, Chevrier, FR;
LEM Intellectual Property SA, Fribourg, CH;
Abstract
A closed-loop current transducer comprising a magnetic circuit, a magnetic field detector, and a compensation coil assembly 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 extending through a central opening of the magnetic circuit. The magnetic circuit comprises a first branch, a second branch, and first and second end branches, 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 that defines a cavity extending in an axial direction A for receiving a sensing portion of the magnetic field detector, the second branch comprising two second branch portions separated by an interface resulting from the bringing together of opposed ends of a single piece magnetic circuit.