Abstract: A magnetic fault current limiter core (10a) comprising at least one first magnetic element (12) and at least one second magnetic element (14), the magnetic elements (12,14) being arranged to define a substantially parallel array of magnetic elements (12,14), the or each first magnetic element (12) including a soft magnetic material and the or each second magnetic element (14) including a hard magnetic material, wherein the or each soft magnetic material in a non-saturated state has a higher magnetic permeability than the or each hard magnetic material.

Abstract: The invention provides an amorphous alloy stereo wound-core, comprising three structurally identical amorphous alloy made square frames; the cross section of the sides of the frames is in an approximately semi-circular or semi-polygonal shape; the frames have semi-circular cross sections and uniform thicknesses; the vertical sides of every two adjacent frames fit together fixedly to form a core pillar, the horizontal sides of the frames form iron yokes; the cross section of each core pillar has a circular or regular-polygonal shape. With this structure, the magnetic conduction direction of the amorphous alloy is completely consistent with the magnetic circuit direction of the core, and its working vibration is small. This core structure guarantees balanced three-phase power supply and largely reduces the magnetic resistance and excited current. There is no seam in the amorphous alloy stereo wound-core, so there is no area with high energy consumption.

Abstract: An amorphous alloy-based magnetic core with reduced audible noise and a method of making the amorphous alloy-based magnetic core emanating low audible noise, including: placing the core with multiple layers of high strength tape on the core legs, wherein the tapes have a high tensile strength, high dielectric strength and high service temperature, resulting in reduced level of audible noise. When operated under optimum condition, the reduced level of audible noise is 6-10 dB less when compared with a same-size core that has been coated with resin instead.

Abstract: A method for manufacturing an armature core is provided, in which a plurality of split cores, which are formed by laminating core pieces produced through punching by punching dies, are coupled together to form an annular shape as a whole, so as to manufacture one armature core. The method includes: preparing a plurality of sets of the split cores, each set having three split cores, so as to form one armature core; and arranging the three split cores in each set at intervals of 120° in the circumferential direction. The three split cores in each set are formed by core pieces that have been punched by the same part of the same punching die.

Abstract: A manufacturing method of ground-buried-type solid insulation transformer includes producing a coil form into which an inner window is formed; winding a low voltage coil and a high voltage coil on the coil form to produce a first coil part; winding glass fiber on the first coil part to produce a second coil part and assembling a first mold into the inner window and then pre-heating the second coil part; putting the second coil part into a second mold and injecting epoxy resin and hardener between the second coil part and the second mold, and automatically molding and curing thereof under predetermined speed, vacuum, pressure and temperature to produce a third coil part on outer circumference of which an epoxy layer is formed; separating the first mold from the inner window of the third coil part and then after-treating and curing the third coil part; cooling the after-treated and cured third coil part and sanding and washing the epoxy layer, and applying semi-conductive coating material to the sanded part to

Abstract: An electrode winding apparatus and method of detecting displacement between a strip-shaped electrode and a strip-shaped separator when stacking and winding the strip-shaped electrode and the strip-shaped separator is described. A winding shaft is configured to wind the strip-shaped electrode and the strip-shaped separator, and a guide member is configured to stack the strip-shaped electrode and the strip-shaped separator before the strip-shaped electrode and the strip-shaped separator are wound around the winding shaft. An imaging device is disposed so as to photograph a portion in which the strip-shaped electrode and the strip-shaped separator are stacked between the guide member and the winding shaft from a side on which the strip-shaped separator is stacked. The imaging device is configured to photograph the strip-shaped separator and the strip-shaped electrode through the strip-shaped separator.

Abstract: An electrical assembly for use with a rotary transformer is provided. The electrical assembly includes a assembly structure having a first flange positioned proximate a first end portion of the assembly structure and a second flange positioned proximate a second end portion of the assembly structure. The electrical assembly further includes at least one lamella coupled to the assembly structure. The at least one lamella extends from the first flange to the second flange.

Abstract: A magnetic component and a method for manufacturing a low profile, magnetic component. The method comprises the steps of providing at least one sheet, coupling at least a portion of at least one winding to the at least one sheet, and laminating the at least one sheet with at least a portion of the at least one winding. The magnetic component comprises at least one sheet and at least a portion of at least one winding coupled to the at least one sheet, wherein the at least one sheet is laminated to at least a portion of the at least one winding. The winding may comprise a clip, a preformed coil, a stamped conductive foil, or an etched trace using chemical or laser etching. The sheet may comprise any material capable of being laminated and/or rolled, including, but not limited to, flexible magnetic powder sheets.

Abstract: A method of manufacturing a magnetic core includes joining first and second core stacks having a plurality of layers of magnetic core material arranged in a laminated structure so as to substantially align the magnetic core layers of the first core stack with those of the second core stack, and inserting a magnetic filler into gaps between the substantially aligned magnetic core layers so as to bridge the gaps between the substantially aligned magnetic core layers.

Abstract: A multilayer coil component includes internal conductors made of silver (Ag) having metal films provided on surfaces thereof to suppress migration of Ag contained in the internal conductors and/or relieve internal stress between magnetic ceramic layers and internal conductor layers without forming gaps at interfaces between the internal conductors including the metal films and a magnetic ceramic surrounding the internal conductors and the interfaces between the internal conductors and the magnetic ceramic. In a manufacturing method for forming a multilayer coil, an acidic solution containing a metal is allowed to penetrate a magnetic ceramic through side surfaces thereof and side gap sections that are regions between side portions of internal conductors and the side surfaces to reach the interfaces between the internal conductors and a surrounding magnetic ceramic, whereby the metal is deposited on surfaces of the internal conductors.

Abstract: A variety of power inductor structures are obtained by arranging a magnetic material block between a plurality of wires and a plurality of bond fingers or bond finger pairs. The power inductor structure can provide high inductance and high currents and at the same time afford smaller sizes.

Abstract: A method of manufacturing electrical windings for transformers and electrical apparatus is disclosed.

Abstract: A thermal expansion compensator is provided and includes a first electrode structure having a first surface, a second electrode structure having a second surface facing the first surface and an elastic element bonded to the first and second surfaces and including a conductive element by which the first and second electrode structures electrically and/or thermally communicate, the conductive element having a length that is not substantially longer than a distance between the first and second surfaces.

Abstract: Magnetic component assemblies and core structures including coil coupling arrangements, that are advantageously utilized in providing surface mount magnetic components such as inductors and transformers.

Abstract: Magnetic flux in a magnetic flux distribution inside a wound iron core for a stationary apparatus is mal-distributed toward the inner periphery side where the magnetic path of a laminated magnetic steel sheet is short with respect to the total lamination thickness and magnetic resistance is small and the inner periphery side on which magnetic flux is concentrated has a high magnetic flux density and increased iron loss, and therefore magnetic steel sheets of different magnetic characteristics are disposed at an arbitrary lamination ratio to make uniform the magnetic flux distribution inside the same wound iron core.

Abstract: A method for producing a coil, in particular an ignition coil for a motor vehicle, in which a primary winding is wound onto a winding mandrel. Then the winding mandrel is introduced into a housing of the coil and the winding mandrel then is removed from the housing, the primary winding remaining inside the housing. Finally, additional components of the coil, in particular a secondary coil shell onto which a secondary winding has been wound, are introduced into the housing, so that the secondary winding is concentrically disposed within the primary winding while dispensing with a separate primary coil shell. The method allows a design of the coil that is more compact in diameter.

Abstract: A transformer transporting/assembling method comprises a transportation step of transporting a U-shaped iron core with an iron plate horizontally extending to a place near an installation site and an erection step of erecting the U-shaped iron core together with an erection tank from a state that the iron plate extends horizontally to a state that the iron plate extend vertically, with the U-shaped iron core contained in the erection tank. The erection step includes a sub-step in which a portal lifter composed of two booms which are vertically expandable and parallel movable with a predetermined distance therebetween and between which the erection tank is disposed and a beam horizontally connecting the two booms and vertically moved as the booms expands or contracts is used, the beam supports the erection tank through a flexible member at predetermined support portions, and the beam is vertically moved by expanding/contracting the booms.

Abstract: Traditional methods of making headlamp coils have left a portion of the coils with slightly irregular forms. These irregularities can result in defects in the ultimate beam pattern. Accommodating these defects in robust lamp and headlamp optical systems can reduce the performance that might otherwise be available. The preferred coil is therefore continuously coiled as a straight body, and carefully cut into segments. Subsequently, legs are welded to the coil segment ends. The coil is then left substantially undistorted by the manufacturing process that would otherwise normally leave a portion of the coils distorted. The method particularly enables a functional center leg coil.

Abstract: In a method for manufacturing pencil cores a continuous strip of electrical steel is provided. The continuous strip is cut to create a plurality of starting strips as laminations each having a length longer than a desired length of the pencil cores and at least one of the strips having a strip width at least equal to or larger than a desired diameter of a cross-section of the pencil cores. The starting strips are provided with a bonding layer. The starting strips are stacked and then heated and cured to create a bonded stack. The bonded stack is machined to a substantially circular cross-section. Without a de-burring or de-smearing operation after the machining, the machined bonded stack is cut to create a plurality of pencil cores of the desired length. The pencil cores created by the method are substantially round, and have no welds at end faces.

Abstract: An inductor component has electrode portions, a winding portion in which a conductor is wound by three or more turns, and lead portions located at both ends of the winding portion and connecting the winding portion and the electrode portions. Winding intervals of the respective turns in the winding portion decrease monotonically from one end to the other end of the winding portion.

Abstract: In a circuit breaker, a current transformer for fault powering trip unit electronics and sensing low currents and high currents includes a core with solid laminations and gapped laminations to sense a wide range of currents from locked-rotor currents to high, instantaneous short-circuit currents in a single current transformer. The current transformer can also fault power trip unit electronics without requiring an additional current transformer. The operating range of the circuit breaker is significantly enhanced compared to existing breakers that can sense only a limited range of current levels.

Abstract: A method of producing a laminated variant-shaped core 10, includes punching out core sheets 12-14 from a strip 11 to form the outlines of the core sheets 12-14, and push back the punched out core sheets 12-14 into the strip 11; forming cutouts 28, 30 and 32 reaching outer peripheries of outer plates 27, 29 and 31, the outer plates 27, 29 and 31 being the same in outer shape and respectively containing thereinside the core sheets 12-14, the cutouts 28, 30 and 32 having inner edges respectively in contact with the core sheets 12-14; forming caulking portions 21 in each of the core sheets 12-14 and caulking portions 33 in each of the outer plates 27, 29 and 31; punching out the outer plates 27, 29 and 31 from the strip 11 to form the outlines of the outer plates 27, 29 and 31, and laminating and interlocking the core sheets 12-14 to form the variant-shaped laminated core 10 and laminating and interlocking the outer plates 27, 29 and 31; and removing the outer plates 27, 29 and 31 located outside the laminated an

Abstract: A laminated inductor includes a plurality of magnetic plates, each having a surface to which a high-permeability magnetic body is attached, and at least one spacer assembly interposed between the magnetic plates. The spacer assembly includes two magnetic boards having moderate magnetic permeability and a magnetic board having low magnetic permeability interposed between the two moderate-permeability magnetic boards. Both moderate-permeability and low-permeability boards are provided, at a surface of each board, with a magnetic body having high permeability. A magnetic top lid and a magnetic bottom lid are respectively set on outside surfaces of the topmost and bottommost ones of the magnetic plates. The high-permeability magnetic bodies mounted to the magnetic plates and the arrangement of the spacer assembly help improve the characteristic of DC superimposition of the laminated inductor thereby enhancing current endurance thereof.

Abstract: In an open magnetic circuit type laminated coil component having a laminate formed by laminating a magnetic layer and a non-magnetic layer or a low magnetic permeability layer and a coil conductor disposed in the laminate, a zirconium oxide is included in the non-magnetic layer or the low magnetic permeability layer forming the laminate. The content of the zirconium oxide in the low magnetic permeability layer is in the range of about 0.02 wt % to about 1.0 wt %. A zirconium oxide is also included in the magnetic layer in a proportion of less than about 1.0 wt %. As the magnetic layer, a material including Ni—Cu—Zn ferrite as a main component is preferably used. As the non-magnetic layer or the low magnetic permeability layer, a material including Cu—Zn ferrite as a main component is preferably used.

Abstract: In a method for manufacturing pencil cores a continuous strip of electrical steel is provided. The continuous strip is cut to create a plurality of starting strips as laminations each having a length longer than a desired length of the pencil cores and at least one of the strips having a strip width at least equal to or larger than a desired diameter of a cross-section of the pencil cores. The starting strips are provided with a bonding layer. The starting strips are stacked and then heated and cured to create a bonded stack. The bonded stack is machined to a substantially circular cross-section. Without a de-burring or de-smearing operation after the machining, the machined bonded stack is cut to create a plurality of pencil cores of the desired length. The pencil cores created by the method are substantially round, and have no welds at end faces.

Abstract: Disclosed is a wound iron core (3) for a static apparatus in which magnetic paths in the inside of the wound iron core are subdivided to improve iron core characteristics. The iron core (3) is configured by using two or more kinds of magnetic materials (11 to 14) with different magnetic permeabilities to form laminated blocks with single plates or a plurality of laminated plates and by alternately arranging the laminated blocks with different magnetic permeabilities from the inner circumference. An iron core material (14) with large magnetic permeability out of iron core materials with different magnetic permeabilities is arranged on the inner circumference side. Further, when the iron core materials with different magnetic permeabilities are alternately arranged, the iron core materials (11) with the same magnetic permeability are configured to gradually change in thickness to ease an excessive magnetic flux density distribution in the iron core.

Abstract: A method for manufacture of a conductor assembly along a curvilinear axis. The assembly may be of the type which, when conducting current, generates a magnetic field or in which, in the presence of a changing magnetic field, a voltage is induced. In one example, the assembly includes a structure having a curved shape extending along the axis. A surface of the structure is positioned for formation of a channel along the curved shape. The structure is rotated about a second axis. While rotating the structure, a channel is formed in the surface that results in a helical shape in the structure. The channel extends both around and along the first axis.

Abstract: A laminated device comprising pluralities of magnetic ferrite layers, conductor patterns each formed on each magnetic ferrite layer and connected in a lamination direction to form a coil, and a non-magnetic ceramic layer formed on at least one magnetic ferrite layer such that it overlaps the conductor patterns in a lamination direction, the non-magnetic ceramic layer comprising as main components non-magnetic ceramics having higher sintering temperatures than that of the magnetic ferrite, and further one or more of Cu, Zn and Bi in the form of an oxide.

Abstract: A method for manufacture of a conductor assembly. The assembly is of the type which, when conducting current, generates a magnetic field or in which, in the presence of a changing magnetic field, a voltage is induced. In an example embodiment one or more first coil rows are formed. The assembly has multiple coil rows about an axis with outer coil rows formed about inner coil rows. A determination is made of deviations from specifications associated with the formed one or more first coil rows. One or more deviations correspond to a magnitude of a multipole field component which departs from a field specification. Based on the deviations, one or more wiring patterns are generated for one or more second coil rows to be formed about the one or more first coil rows. The one or more second coil rows are formed in the assembly. The magnitude of each multipole field component that departs from the field specification is offset.

Abstract: A method of fabricating conducting crossover structures for power inductors comprises providing a first lead frame array including first lead frames, providing a second lead frame array including said second lead frames, stamping one side of a second lead frame array to define first and second terminals of said second lead frames, at least one of coating, spraying, applying and/or attaching an insulating material to said first lead frame array to form a first laminate, stamping said first laminate in a direction from said insulating material towards said first lead frame array to define first and second terminals of said first lead frames; and arranging said insulating material of said first laminate adjacent to and in contact with said one side of said second lead frame array to form a second laminate.

Abstract: A laminated ceramic component includes a ferrite magnetic layer and a glass ceramic layer made chiefly of borosilicate glass. The glass ceramic layer is laminated with the ferrite magnetic layer, and has an Ag inner conductor embedded inside. A microscopic region where aluminum and silver coexist is dispersed in the glass ceramic layer.

Abstract: A transformer includes a frame type iron core having plate-shaped magnetic members. At least one of the plate-shaped magnetic members has a large width and forms a magnetic circuit in which a magnetic flux is concentrated. Each of the plate-shaped magnetic members includes magnetic member pieces. Each adjacent pair of end surfaces of the magnetic member pieces are joined together to form a joint portion. Three or more joint portions, each of which is formed, by joining together adjacent end surfaces of an adjacent pair of the magnetic member pieces included in the plate-shaped magnetic member having the large width, are shifted from each other in the direction of a magnetic path of the magnetic circuit to increase an effective cross sectional area of the magnetic path. The magnetic member pieces included in the plate-shaped magnetic member having the large width have a high magnetic permeability to reduce a magnetic resistance of the magnetic circuit.

Abstract: A conductor assembly and method of manufacture. The assembly includes a magnetic coil positioned about a curvilinear axis with one or more coil rows comprising conductive material having an arcuate shape. A generated field is characterized by a dipole component having a first magnitude, a quadrupole component having a second magnitude, a sextupole component having a third magnitude and a decupole component having a fourth magnitude. The third and fourth magnitudes are each 10?3 the first magnitude or less.

Abstract: A DC-DC converter comprising a soft-magnetic, multi-layer substrate provided with a laminated coil constituted by connecting pluralities of conductor lines, and a semiconductor integrated circuit device comprising a switching device and a control circuit, which are mounted on the soft-magnetic, multi-layer substrate; the semiconductor integrated circuit device comprising an input terminal, an output terminal, a first control terminal for controlling the ON/OFF of the switching device, a second control terminal for variably controlling output voltage, and pluralities of ground terminals; the soft-magnetic, multi-layer substrate comprising first external terminals formed on a first main surface, first connecting wires formed on the first main surface and/or on nearby layers, second connecting wires formed between the side surface of the multi-layer substrate and a periphery of the laminated coil, and second external terminals formed on a second main surface; and terminals of the semiconductor integrated circuit

Abstract: The invention provides a high-quality magnetic iron core by concurrently satisfying requirements for enhancement in strength of a wound iron core, particularly, strength of a wound iron core made up of amorphous foil strips, reduction in manufacturing time, and manufacturing cost. The invention also provides an electromagnetic application product highly efficient and small in size as an application of the magnetic iron core. The magnetic iron core includes an amorphous foil strip being wound to form the magnetic iron core. The magnetic iron core is filled with resin, the resin being disposed in every plural turns of windings of the amorphous foil strip. Preferably, the magnetic iron core is filled with the resin, the resin being disposed by using a spacer in every plural turns of windings of the amorphous foil strip. Preferably, the magnetic iron core is covered with resin which is integrated with and continuous to the resin disposed in every plural turns of windings of the amorphous foil strip.

Abstract: A method of manufacturing a coil having a cross section differing from a circular ring cross section. In this method a circular cylindrical coil with a circular ring cross section is first wound and then reshaped into a coil with a cross section differing from the circular ring cross section. At least two axially parallel fingers of an expander are temporarily inserted into the coil interior for reshaping the wound circular cylindrical coil and are displaced in a diverging relative movement after the insertion and while doing so expand the initially circular cylindrical coil into the coil having the different cross section.

Abstract: An inductor may be formed from a magnetic film on a package substrate. Conductors coupled either to a die or a voltage converter extend perpendicularly through the film to conductive plates, defining current paths through and across the film.

Abstract: A method for producing a transformer core with layers of core laminations includes forming at least one core lamination of at least two segmental laminations. An end region of a first segmental lamination has a straight crosscut edge. The straight crosscut edge of the first segmental lamination together with a corresponding straight crosscut edge of an end region of a second segmental lamination forms a form-locking straight abutting edge. The straight abutting edge is at an angle relative to the longitudinal direction of the end region of one of the segmental laminations of the first core lamination. Using core laminations having different angular orientations of the abutting edges, avoids magnetic losses such as those occurring when using conventional layering techniques. Simultaneously, an intermediate space created by conventional layering techniques between individual core lamination packs can be minimized, and thereby susceptibility to corrosion can likewise be reduced or completely avoided.

Abstract: The present invention is directed to a method of making a transformer having a stacked core, which includes top and bottom yokes and first and second outer legs. The core also includes an inner leg that is formed from a pair of stacked plates, which abut each along a seam that extends in the longitudinal direction of the inner leg. Each of the upper and lower yokes may be formed from a single stack of plates, or a plurality of stacks of plates. Each of the inner and outer legs may also be formed from a single stack of plates, or a plurality of stacks of plates. The cross-section of the core may be rectangular or cruciform.

Abstract: A ballast choke coil constructed with more than two winding coils assembled on laminate cores (LC) being held together firmly by a bracket (M1) in the manner of simulating the toroidal structure created more space for increasing the number of winding turn of the coil or alternatively allow for increase of wire size. Total number of winding turns that is needed to achieve the required inductance is divided to several coils. The new structure utilizes only half of the laminate material for producing a simple ballast choke coil unit that is similar performance to the existing fluorescent lamp ballast choke coil available in the market. Even though two units of coil (WC) are used in the construction of this ballast choke coil, the wire total weight that is used to produce a unit of ballast need not be increased.

Abstract: A current transformer core has a ratio of the core outside diameter Da to the core inside diameter Di of <1.5, a saturation magnetostriction ?s of =|4| ppm, a circular hysteresis loop with 0.50=Br/Bs=0.85 and an Hcmax=20 mA/cm. The current transformer core is made of a soft magnetic iron alloy in which at least 50% of the alloy structure is occupied by fine-crystalline particles with an average particle size of 100 nm or less, and the iron-based alloy comprises, in essence, one combination.

Abstract: A load sensing, high efficiency, modular transformer assembly for use in power distribution networks. The control of each module of the modular assembly of high efficiency transformers results in considerable energy savings when compared to conventional transformers. The assembly is controlled according to the requirements of the connected load, with modules being switched in and out of circuit, thereby resulting in a transformer with a higher efficiency than is possible with currently available distribution transformers of equivalent capacity. Connection and disconnection of the transformer modules is accomplished with the use of a purpose designed electronic controller.

Abstract: A transformer core includes a stack of a plurality of planar core plates of a magnetically permeable material, which plates each consist of a first and a second sub-part that together enclose at least one opening. The sub-parts can be fitted together via contact faces that are located on either side of the opening and that extend obliquely with respect to the centerline of the core plate. The invention also relates to the use of the described transformer core in a Coriolis flowmeter with the Coriolis tube extending through the opening so as to induce a current in the tube.

Abstract: A method for producing a winding, particularly for electrical transformer from a cylindrical tubular metal element of polygonal cross-section, includes steps of machining, in a first series of passes, a first series of cuts substantially parallel to one another through all of the sides of the tubular element with the exception of a last one of said sides, and machining, in a second series of passes, a second series of cuts in said last one of said sides in order to ensure that junctions of the first series of cuts open out in the sides adjacent to the second series of cuts, so that the first and second series of cuts are continuous with respect to one another and constitute a single groove of helicoidal shape.

Abstract: An ignition coil, in particular for an internal combustion engine of a motor vehicle, has an inner magnet core which is concentrically enclosed by a primary coil and a secondary coil. The inner magnet coil is made up of sheet-metal strips stacked on top of each other, the sheet-metal strips forming a substantially rectangular or square cross-section surface of the inner magnet core. At least the lower and the upper sheet-metal strips, delimiting the inner magnet core, have, at least in partial areas, a reduced width viewed in the longitudinal direction compared to the other sheet-metal strips of the inner magnet core. This makes a primary bobbin and a secondary bobbin having an enlarged corner radius and a more uniform winding density of the primary coil and the secondary coil possible.

Abstract: An ignition apparatus includes a transformer having a central core, a primary winding disposed thereabout, a secondary winding disposed outwardly of the primary winding, a case configured to house the central components, and an outer core or shield disposed outwardly of the secondary winding. The central core is formed from multiple, low carbon steel wires held together is a cylindrical shape with cured bond coating material such as an epoxy material or an aromatic polyamide material. In one configuration, at least two different sizes of wires are used in forming the core to increase the density of the magnetically-permeable wire material in the core.

Abstract: Low profile magnetic components and methods of manufacture include first and second core pieces extending interior and exterior to an open center area of a coil. Surface mount terminations are also provided to complete electrical connections to a circuit board.

Abstract: A magnetic core (1, 1?, 20, 28, 29, 58, 61, 70, 70?, 80, 80?, 90) for a magnetic component has a longitudinal axis parallel to which a magnetic current is to be substantially guided inside the magnetic core. The magnetic core consists of a plurality of magnetic elements (2, 3, 4, 5, 6, 7, 8, 29, 30, 35, 36, 38, 39, 40, 48, 49, 52, 53) shaped like bars or strips arranged parallel to one another, at least one of the magnetic elements (2, 3, 4, 5, 6, 7, 8, 29, 30, 35, 36, 38, 39, 40, 48, 49, 52, 53) is different from the other magnetic elements in one or several of the following characteristics: permeability of material, curvature, length, shape and/or size of surface area, presence, type and location of notches in the magnetic elements.

Abstract: A stack of metallic laminations, a metallic lamination and a process for forming a lamination stack. The stack of laminations includes at least one locking lamination provided with at least two locking openings and at least one passage lamination comprising at least two passage openings, each locking lamination incorporating a tab that passes through a passage opening of a lamination seated against the locking lamination, said tab being bent so as to be contained in said passage opening and seated on an edge portion of the latter, deformed to the inside of the locking opening of the locking lamination, and at least one of the parts of locking lamination and passage lamination further comprising a lock means actuating in a lock receiving means provided in the other of said parts.

Abstract: A magnetic pole for magnetically levitation vehicles is described comprising a core and a winding applied on said core. According to the present invention, the winding has two spaced disks formed of conductor strip sections (21a, 21b) wound in opposite winding sense and in several layers around said core and conductively connected to each other at ends near said core by a connection section (21c) which defines the axial distance of said two disks (11, 12) and the winding sense of the two conductor strip sections (21a, 21b).