Abstract: 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.

Abstract: The invention concerns a device (10) for recovering energy from a single-phase power cable (1) comprising two phase conductors (C1, C2). It comprises a magnetic core (20), in the form of an openable torus, installed around said power cable (1) to form a magnetic circuit able to pick up a magnetic field induced by a primary current passing through said phase conductors, and a detection coil (30) wound around said magnetic core (20), to induce a secondary voltage from said induced magnetic field and deliver across said coil an output voltage usable to power electrical systems. It comprises a heterogeneous magnetic circuit to induce an asymmetrical magnetic flux flow in said magnetic circuit and maximize the output voltage of said detection coil (30).

Abstract: This power cable comprises at least one conductive element and further comprises: at least one means (36) for measuring at least one physical quantity; at least one electronic circuit (32), connected to the measurement means (36) and suitable for receiving from the at least one measurement means (36) at least one signal representative of the at least one physical quantity; and at least one energy harvesting system (30) disposed inside the cable, suitable for supplying the at least one electronic circuit (32) with electrical energy from the electrical energy available in the at least one conductive element.

Abstract: 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.

Abstract: The invention relates to a power cable comprising at least one conductor element (10) and which additionally comprises at least one strip (16) arranged on at least one portion of the length of said conductor element (10). The strip (16) is equipped with a winding-free energy recovery system which supplies the strip (16) with electric current from the energy available in the conductor (10). The strip (16) has a plurality of elements (18) which generate light from this electric current.

Abstract: The invention relates to a power cable which comprises a central filler region (13) containing at least one conductor element (10), and additionally comprises at least one strip (16) arranged in said central filler region (13) in the vicinity of the conductor element (10). The cable is equipped with a winding-free energy recovery system (11) which supplies the strip (16) with electric current from the energy available in the conductor (10). The strip (16) has a plurality of elements which generate light from this electric current.

Abstract: 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 .

Abstract: 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.

Abstract: The invention relates to a method of producing a strip of nanocrystalline material which is obtained from a wound ribbon that is cast in an amorphous state, having atomic composition [Fe1?a?bCoaNib]100?x?y?z??????CuxSiyBzNb?M??M??, M? being at least one of elements V, Cr, Al and Zn, and M? being at least one of elements C, Ge, P, Ga, Sb, In and Be, with: a ?0.07 and b ?0.1, 0.5 ?x ?1.5 and 2 ???5, 10?y?16.9 and 5?z?8, ??2 and ??2. According to the invention, the amorphous ribbon is subjected to crystallization annealing, in which the ribbon undergoes annealing in the unwound state, passing through at least two S-shaped blocks under voltage along an essentially longitudinal axial direction of the ribbon, such that the ribbon is maintained at an annealing temperature of between 530° C. and 700° C. for between 5 and 120 seconds and under axial tensile stress of between 2 and 1000 MPa.

Abstract: A nanocrystallised tape-wound core without a localised airgap, consisting of a nanocrystalline material with the following atomic composition: [Fe1-aNia]100-x-y-z-a-?-?CuxSiyBzNbaM??M??, wherein a?0.3, 0.6?x?1.5, 10?y?17, 5?z?14, 2?a?6, ??7, ??8, M? is at least one of the elements V, Cr, Al and Zn, M? is at least one of the elements C, Ge, P, Ga, Sb, In and Be, with a permeability ? of 200 to 4000, a saturation of more than 1T, an induction range, in which the permeability does not vary by more than 5%, of more than 0.9T, a remanent induction of less than 0.02T and a cut-off frequency higher than 1 MHz, such that ? varies by less than 1% when the core is aged for 100h at more than 100° C., ? varies by less than 5% when the core is coated, ? varies by less than 15% when the temperature is in the range of ?25° C. and +60° C., and by less than 25% when the temperature is in the range of ?40° C. and +120° C., and ? varies in a monotonic and substantially linear manner with a temperature of ?40° C. to +120° C.

Abstract: The invention relates to a method of producing a strip of nanocrystalline material which is obtained from a wound ribbon that is cast in an amorphous state, having atomic composition [Fe1-a-bCoaNib]100-x-y-z-$g(a)-$g(b)-$g(g)CuxSiyBzNb$g(a)M?$g(b)M$g(g), M? being at least one of elements V, Cr, Al and Zn, and M being at least one of elements C, Ge, P, Ga, Sb, In and Be, with: a $m(F) 0.07 and b $m(F) 0.1, 0.5 $m(F) x $m(F) 1.5 and 2 $m(F) $g(a) $m(F) 5, 10 $m(F) y $m(F) 16.9 and 5 $m(F) z $m(F) 8, $g(b) $m(F) 2 and $g(g) $m(F) 2. According to the invention, the amorphous ribbon is subjected to crystallisation annealing, in which the ribbon undergoes annealing in the unwound state, passing through at least two S-shaped blocks under voltage along an essentially longitudinal axial direction of the ribbon, such that the ribbon is maintained at an annealing temperature of between 530° C. and 700° C. for between 5 and 120 seconds and under axial tensile stress of between 2 and 1000 MPa.

Abstract: A nanocrystallised tape-wound core without a localised airgap, consisting of a nanocrystalline material with the following atomic composition: [Fe1-aNia] 100xyza??CuxSiyBzNbaM??M??, wherein a?0.3, 0.6?x?1.5, 10?y?17, 5?z?14, 2?a?6, ??7, ??8, M? is at least one of the elements V, Cr, Al and Zn, M? is at least one of the elements C, Ge, P, Ga, Sb, In and Be, with a permeability ? of 200 to 4000, a saturation of more than 1 T, an induction range, in which the permeability does not vary by more than 5%, of more than 0.9 T, a remanent induction of less than 0.02 T and a cut-off frequency higher than 1 MHz, such that ? varies by less than 1% when the core is aged for 100 h at more than 100° C., ? varies by less than 5% when the core is coated, ? varies by less than 15% when the temperature is in the range of ?25° C. and +60° C., and by less than 25% when the temperature is in the range of ?40° C. and +120° C., and ? varies in a monotonic and substantially linear manner with a temperature of ?40° C. to +120° C.