An inductor has one or more wires and a multipart magnetic core. The multipart magnetic core has magnetic core parts that are adjacent and magnetically coupled. The inductor provides an inductance of at least 40 nH for currents greater than 1 A and less than 60 A, and at least 20 nH for currents of at least 60 A.

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.

A three phase fractal generator system includes an armature plate, having a first conductor winding having nine fractal circles wrapped in wire; a second conductor winding having nine fractal circles wrapped in wire; and a third conductor winding having nine fractal circles wrapped in wire; a fractal field relay positioned on top of the armature plate, the fractal field relay having, an inner, middle, and outer circular row of magnets; each magnet is flanked by a magnet with an opposite pole; and a position and proximity of each of the magnets in the fractal field relay create a compressed woven magnetic field that reduces bleed off while channeling a peak strength to the armature plate and spins relative to the armature plate.

A three phase fractal generator system includes an armature plate, having a first conductor winding having nine fractal circles wrapped in wire; a second conductor winding having nine fractal circles wrapped in wire; and a third conductor winding having nine fractal circles wrapped in wire; a fractal field relay positioned on top of the armature plate, the fractal field relay having, an inner, middle, and outer circular row of magnets; each magnet is flanked by a magnet with an opposite pole; and a position and proximity of each of the magnets in the fractal field relay create a compressed woven magnetic field that reduces bleed off while channeling a peak strength to the armature plate and spins relative to the armature plate.

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.

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.

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.

A laminated core of a rotary electric machine having: a first spiral core constituent body layer configured by linking a plurality of metal first core constituent pieces that have a magnet mounting part, the first spiral core constituent body layer being wound in a spiral shape as an integral body; and a second spiral core constituent body layer configured by linking the plurality of first core constituent pieces and a metal second core constituent piece that has a magnet mounting part, the second core constituent piece having a different longitudinal-direction length than do the first core constituent pieces, and the second spiral core constituent body layer being wound in a spiral shape as an integral body. The second spiral core constituent body layer is laminated on the first spiral core constituent body layer in continuation with the first spiral core constituent body layer.

A laminated core of a rotary electric machine having: a first spiral core constituent body layer configured by linking a plurality of metal first core constituent pieces that have a magnet mounting part, the first spiral core constituent body layer being wound in a spiral shape as an integral body; and a second spiral core constituent body layer configured by linking the plurality of first core constituent pieces and a metal second core constituent piece that has a magnet mounting part, the second core constituent piece having a different longitudinal-direction length than do the first core constituent pieces, and the second spiral core constituent body layer being wound in a spiral shape as an integral body. The second spiral core constituent body layer is laminated on the first spiral core constituent body layer in continuation with the first spiral core constituent body layer.

An electromagnet and method for producing an electromagnet. The electromagnet includes a sheet metal casing encompassing a magnetic coil at its end face on a magnetic pole side and extends into an interior of the magnetic coil and forms, in this case, a magnetic pole which interacts with a magnet keeper. The electromagnet enables actuation of a valve, a coupling or a reciprocating pump. The structure is achieved with as few cutting processes as possible to be used for generating the individual parts and as small a number as possible of individual parts is to be used per electromagnet.