Socomec

Imphy S.a.

Dominique Gautard

Thierry Save

Georges Couderchon

Lucien Coutu

Laurent Chaput

Vincent Begotto

An openable toroidal current transformer is intended to close over at least one electrical conductor in which an electrical current to be measured circulates. The current transformer includes a magnetic circuit, and an electrically conducting coil wound around the magnetic circuit and electrically insulated from the magnetic circuit. The coil comprises a single winding or several distinct windings coupled in series. The magnetic circuit comprises a set of wires of magnetic material assembled in the form of a strand, allowing having uniform flexibility in all directions for the magnetic circuit.

Openable current transformer comprising a flexible magnetic core

A device for recovering energy from a single-phase power cable includes two phase conductors, a magnetic core, in the form of an openable torus, installed around the power cable to form a magnetic circuit able to pick up a magnetic field induced by a primary current passing through the phase conductors, a detection coil wound around the magnetic core, to induce a secondary voltage from the induced magnetic field and deliver across the coil an output voltage usable to power electrical systems, and a heterogeneous magnetic circuit to induce an asymmetrical magnetic flux flow in the magnetic circuit and maximize the output voltage of the detection coil.

Method and device for recovering electrical energy from a single-phase or multiphase power cable

A device for recovering electrical energy includes a ferromagnetic cable helically wound around a portion of a power conductor , and disposed to form both a magnetic system which is capable of sensing the magnetic field induced by a current passing through the power conductor , and a way to generate a utilisable induced voltage from this magnetic field. The ferromagnetic cable is produced from an assembly of unitary strands produced from ferromagnetic material, these strands being assembled into the form of a stranded wire, each unitary strand behaving as a winding in which the induced voltage is induced, and the assembly of unitary strands forming an assembly of windings connected in parallel by way of connecting terminals provided at the ends of the ferromagnetic cable to recover the induced voltage.

Energy recovery device on at least one power conductor and method for manufacturing the recovery device

Stepper motor of the type comprising a rotor (1), a stator (2) and a coil (3) consisting of a magnetic core (4) and of a winding (5), in which the stator (2) consists of a soft magnetic alloy of the FeNiCr type, the chemical composition of which includes, by weight: 40%.ltoreq.Ni+Co.ltoreq.60%, 0%.ltoreq.Co.ltoreq.7%, 8%.ltoreq.Cr.ltoreq.13.5%, 8%.ltoreq.Cr+Mn+Si+Mo+Nb+V+W.ltoreq.13.5%, the remainder being iron and impurities resulting from the manufacture. Soft magnetic alloy.

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Varennes Vauzelles, France

Dominique Gautard