Lem International Sa

Lem Intellectual Property Sa

Steve Mouchet

Steve Moureaux

Stéphan Trombert

Félix Buhlmann

Diego Neftali Gutierrez Hernandez

A closed-loop current transducer comprising a magnetic circuit core made of a material with a low magnetic reluctance to conduct magnetic flux and concentrate a magnetic field, a magnetic field detector positioned in a magnetic circuit gap of the magnetic circuit core, and a compensation coil assembly comprising a compensation coil and a compensation coil support comprising a coil support bobbin, the compensation coil being wound around the coil support bobbin. The magnetic circuit comprises a first longitudinal branch, a second longitudinal branch, and first and second end branches interconnecting the first and second longitudinal branches such that the branches surround a central opening configured to receive one or more primary conductors therethrough, the magnetic circuit being formed of first and second parts assembled together from opposed ends of the compensation coil support.

Closed-loop current transducer

Current transducer

A current transducer including a housing comprising an outer casing, a magnetic circuit core configured to encircle at least one primary conductor, and a magnetic field detector positioned in a magnetic circuit gap of the magnetic circuit core. The housing further includes an inner support part comprising a main body portion and a magnetic core support portion. The magnetic circuit core is in the form of a thin strip of amorphous material supported on the main body portion and magnetic core support portion, the magnetic circuit gap being formed between overlapping ends of the strip.

Electrical current transducer

Electrical current transducer including a housing (), a magnetic field detector device () comprising a magnetic field sensing element (), and a magnetic circuit comprising a magnetic core () with a gap () and a bridging device () mounted on the magnetic core and spanning across the gap. The bridging device comprises a gap-width setting portion () made of a non-magnetic material inserted in the gap configured to determine a minimum width of the gap. The bridging device comprises at least two parts (), a first part mounted against a first lateral side () of the magnetic core and a second part mounted () mounted against a second lateral side () of the magnetic core opposite the first lateral side, at least one of the first and second parts comprising fixing extensions () cooperating with the other of the first and second parts configured for clamping together the first and second parts around a portion of the magnetic core comprising the gap.

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Pringy, France

Steve Mouchet