The invention relates to a resonator of a wireless power transfer system (1), including a magnetic core in the form of an H-core with two yokes and at least one limb (52) connecting the yokes where a winding (53) is wound on the limb (52) of the core. The winding (53) includes a PCB (56.1) on one side of the limb (52) and a PCB (56.2) on another side of the limb (52) where the turns of the coil are formed by traces on the first PCB (56.1) and on the second PCB (56.2) that are connected to each other by soldering pins (57) that are soldered into corresponding holes of the PCBs (56.1, 56.2). The traces on the PCBs (56.1, 56.2) may be provided on a single conductive layer of the PCBs (56.1, 56.2) or the PCBs may be multilayer PBS, where each turn section between two soldering pins (57) on one of the PCBs (56.1, 56.2) may include several strands including one or more traces on one or more conductive layers.

A magnetic module includes: a magnetic core; and plural enameled wires wound on the magnetic core, the enameled wire being wound on the magnetic core to form a primary coil and a secondary coil, the primary coil including a first group of enameled wires and a second group of enameled wires, the secondary coil including a third group of enameled wires and a fourth group of enameled wires, wherein the parts of the first group of enameled wires and the fourth group of enameled wires wound around the magnetic core are twisted together to form a first stranded wire, the parts of the second group of enameled wires and the third group of enameled wires wound around the magnetic core are twisted together to form a second stranded wire, and the first stranded wire and the second stranded wire are twisted together to form a total stranded wire.

A magnetic module includes: a magnetic core; and plural enameled wires wound on the magnetic core, the enameled wire being wound on the magnetic core to form a primary coil and a secondary coil, the primary coil forming a primary input end, a primary output end, and a primary center tap, the secondary coil forming a secondary input end, a secondary output end, and a secondary center tap, wherein one of the primary coil and the secondary coil includes four groups of enameled wires, and the other includes one group of enameled wires.

Sheet metal construction is described for achieving high strength at low weight for a power reactor and for an impedance injection module incorporating the power reactor. Clamping plates are used to retain the core and the windings of the reactor. Integrated features of a specialized frame of the impedance injection module include flanges for structural rigidity, a convenient yoke plate for lifting by crane, feet for mounting insulators, and sufficient strength to maintain mechanical integrity during normal operation and also during fault conditions. The specialized frame provides a light weight assembly suitable for mounting on power transmission lines as well as on ground assemblies. The specialized frame can reduce the cost of the total enclosure to around 25% of the cost and 50% of the weight of an equivalent conventional enclosure. An insulation topology is also described.

A multiple parallel conductor that is easy to produce and use and has a plurality of twisted, insulated individual conductors. The individual conductors are arranged above one another in a plurality of sub-conductor bundles arranged next to one another. A strip is applied to the multiple parallel conductor on a side surface of the multiple parallel conductor in the longitudinal direction of the multiple parallel conductor, on which strip spacer plates are arranged so as to be distributed in the longitudinal direction, and the multiple parallel conductor together with the strip and the spacer plates is wrapped with a wrapping.

First and second wires form a wire assembly by being wound around a winding core portion together. The wire assembly includes a twisted wire portion, an inner layer portion, an outer layer portion, a plurality of outward transition portions, and an inward transition portion. The outer layer portion includes a first outer layer portion which is connected to one of the outward transition portions extending from an intermediate position of the inner layer portion and connected to the inward transition portion. The inward transition portion extends to an intermediate position of the inner layer portion.

A continuously transposed cable CTC, extending according to a longitudinal development direction (L) and having two opposite longitudinal ends, includes a plurality of strands arranged so to form at least a first and a second adjacent stacks, each extending along the longitudinal development direction (L), wherein said at least first and second stacks form a longitudinal interface therebetween. The CTC cable (1) further includes one or more optical fibers positioned at the interface between the first and the second stacks. A winding of an electromagnetic induction device, such as a transformer, can be obtained by winding said CTC cable.

First and second wires form a wire assembly by being wound around a winding core portion together. The wire assembly includes a twisted wire portion, an inner layer portion, an outer layer portion, a plurality of outward transition portions, and an inward transition portion. The outer layer portion includes a first outer layer portion which is connected to one of the outward transition portions extending from an intermediate position of the inner layer portion and connected to the inward transition portion. The inward transition portion extends to an intermediate position of the inner layer portion.

A winding-type coil component includes a first wire and a second wire having a twisted wire portion where the first wire and the second wire are twisted together. Switching positions of the first wire and the second wire in the twisted wire portion are shifted in a circumferential direction of a winding core portion every turn.

The invention relates to a resonator of a wireless power transfer system (1), including a magnetic core in the form of an H-core with two yokes and at least one limb (52) connecting the yokes where a winding (53) is wound on the limb (52) of the core. The winding (53) includes a PCB (56.1) on one side of the limb (52) and a PCB (56.2) on another side of the limb (52) where the turns of the coil are formed by traces on the first PCB (56.1) and on the second PCB (56.2) that are connected to each other by soldering pins (57) that are soldered into corresponding holes of the PCBs (56.1, 56.2). The traces on the PCBs (56.1, 56.2) may be provided on a single conductive layer of the PCBs (56.1, 56.2) or the PCBs may be multilayer PBS, where each turn section between two soldering pins (57) on one of the PCBs (56.1, 56.2) may include several strands including one or more traces on one or more conductive layers.