Abstract: An electric machine includes a stator having a first end and a second end and an end frame including a first cup portion arranged to at least partially contain a portion of the stator. The end frame is positioned adjacent the first end of the stator. A potting cup includes a second cup portion arranged to at least partially contain a portion of the stator. The potting cup is positioned adjacent the second end of the stator. A potting member is coupled to the stator, the end frame, and the potting cup to permanently bond the end frame, the potting cup, and the stator to one another.

Abstract: Provided is a rotor for a dynamoelectric machine. The rotor includes winding elements arranged in axially extending grooves of a rotor body, a winding head arranged axially adjacent to the rotor body, and a winding head carrier, connected to the winding head by means of tension bolts, all arranged in such a way that reliable securing of the winding head against radial expansion due to centrifugal forces is ensured, while resulting in a compact and cost-effective configuration as well as sufficient cooling.

Abstract: A rotor of an electric motor is provided in which a permanent magnet holding member can be assuredly fixed to a rotor main body and the rotor main body can be easily worked and inexpensively manufactured. In the rotor, a plurality of permanent magnets 21 are held in a permanent magnet holding member 29 made of a synthetic resin and fixed to an outer peripheral part of a cylindrical rotor main body 28. An outer peripheral surface of the rotor main body 28 is a cylindrical surface. Rotation prevention recessed parts 30 are formed at a plurality of parts in the circumferential direction of the outer peripheral part in both end parts of the rotor main body 28. The permanent magnet holding member 29 includes annular parts 31 which come into close contact with the outer peripheral parts of both end faces of the rotor main body 28 and connecting parts 32 which connect both the annular parts 31 on the outer peripheral surface of the rotor main body 28 and hold the permanent magnets 21.

Abstract: The present invention relates to an electric commutator motor (1) that comprises a stator (2) and a rotor core (3), wherein the magnetic flux transmittance between the rotor (3)-stator (2) is improved and the noise level is reduced by securing a ferromagnetic rotor sleeve (5) on the outer circumference press-fittingly. The sleeve is made of a ring shaped ferromagnetic laminations.

Abstract: In a spinning processing method of processing cylindrical parts includes: joining at least two sheets of metal plates by bring together sheet surfaces of the metal plates; rotating the metal plates using a rotating shaft that is arranged perpendicular to the sheet surfaces of the metal plates; applying a separating and deforming force at a coupling position on a periphery of the at least two sheets of the metal plates to separate and deform the metal plates while the at least two sheets of the metal plates rotate; and applying a cylinder forming force to at least one of the metal plates to form a cylinder along the rotating shaft.

Abstract: The present invention relates to an alternating-current-synchronous-servomotor having a disk-shaped rotor (55, 56) which is located between two stator halves. The rotor comprises an even number of flat permanent magnets pieces (56) having magnet field lines extending parallel to the shaft of the rotor. The permanent magnet pieces (56) form an annular like series including interstices extending around a hub (55) supported on the shaft. The magnet pieces are made of a magnetically non-conductive material and have flat sides acting as magnetic pole surfaces (N, S) which extend in parallel planes to which the axis of the shaft extend perpendicularly. The permanent magnet pieces (56) have limiting surfaces located radially inwards, which are supported each on one of peripheral planes of the hub (55). Said peripheral planes and said limiting surfaces comprise cooperating means (57, 58, 59, 60) for fixing said magnet pieces (54) on said hub (55).

Abstract: The invention is characterized in that in a motor rotor constituted by a motor shaft (30), a permanent magnet (31) surrounding the motor shaft (30) around an axis, a pair of end rings (32, 32) surrounding the motor shaft (30) around the axis and pinching the permanent magnet (31) from both sides in an axial direction, and a hollow cylindrical outer sleeve (33) surrounding the permanent magnet (31) and a pair of end rings (32, 32) in a fastening state around the axis, one end portion or both end portions of the outer sleeve (33) protrudes in the axial direction than an end surface of the end ring (32). A rotating balance correction is executed by pruning away a part of the protruding portion.

Abstract: A wedge for use in a generator rotor includes a wedge body having a generally triangular shape with flat surfaces, and such that when the wedge is placed in a generator rotor, the flat surfaces will define circumferential extents of the wedge body relative to a rotational axis of the rotor, and said flat surfaces extending to a radially outermost extent of the wedge body. A wedge and winding combination, a generator rotor, a generator and a method all using the wedges are disclosed and claimed.

Abstract: A magnet comprising grains of a ferromagnetic material whose main component is iron and a fluorine compound layer or an oxy-fluorine compound layer of fluoride compound particles of alkali metals, alkaline earth metals and rare earth elements, present on the surface of the ferromagnetic material grains, wherein an amount of iron atoms in the fluorine compound particles is 1 to 50 atomic %.

Abstract: A rotor pole crossover connection joint for use in a rotating electrical machine is disclosed. The connection joint integrally couples a bottom rotor coil strap to a rotor pole crossover connector with a single piece connector that reduces, distributes or otherwise tolerates stress concentrations in the connector. A corresponding method of forming a rotor pole crossover connection and a rotor assembly including a rotor pole crossover connection joint are also disclosed.

Abstract: A motor rotor has a resin-impregnated thread layer formed by winding a thread of a reinforced fiber material around a permanent magnet layer with a gap between an outer peripheral surface of the thread layer and an inner peripheral surface of a cylindrical body, and impregnating the thread layer with a curable resin. A subsequent thread layer is formed by leading a continuous thread into an annular passage through thread passing recesses, winding the continuous thread around a bottom portion of the passage, and impregnating the subsequent thread layer with a curable resin. A curable resin is injected into the gap between the outer peripheral surfaces of the thread layer and the subsequent thread layer and the inner peripheral surface of the cylindrical body through resin injection passages and/or the thread passing recesses before heating and curing.

Abstract: A dynamoelectric machine comprising a stator having a plurality of slots and teeth, armature windings wound around the teeth, and a rotor disposed inside the stator, wherein an alloy member is disposed in the inner periphery of the stator and the magnetic compensator has its surface or inside thereof a high resistance layer.

Abstract: An arrangement in a rotor of an electrical machine; the rotor (5) rotates around its axis of rotation and comprises of, at least, the frame (13) and coils (15), which are projected as coil ends (11). There are protruding beams (17,18) substantially projecting in the direction of the longitudinal axis from the frame (13) outside the outer ring surface (12) formed by the coil ends (11); a binding band (9) is fitted on the protruding beams (17, 18) and a binding band (9) is glideable on the protruding beams (17, 18).

Abstract: A brushless motor-generator includes a rotor having a ferromagnetic tube with radially polarized, alternating polarity permanent magnet poles, and an air core armature that magnetically exerts torque upon the rotor. The magnetic poles drive magnetic flux across a radial magnetic air gap inside of the tube and through windings of the armature that are located in the air gap. The windings utilize wire that is comprised of multiple individually insulated strands that are bundled together and sheathed in an outer electrically insulating serve that separates adjacent windings and provides a higher dielectric breakdown strength than the insulation on the individually insulated strands.

Abstract: The segmented permanent-magnet rotor for high-speed synchronous machines reduces eddy-current losses by axially segmenting the containment sleeve and the permanent magnets. The axial segmentation of the containment sleeve includes forming grooves circumferentially around the outer surface of the containment sleeve. The circumferential grooves disrupt the generation of eddy currents on the outer surface of the containment sleeve and therefore reduce eddy-current losses in the containment sleeve. Axial segmentation of the permanent magnets also disrupts eddy current formation, thereby reducing eddy current losses in the permanent magnets. In addition, the presence of an electrically insulating layer between the containment sleeve and the permanent magnets reduces eddy current migration from the containment sleeve to the permanent magnets, and therefore provides additional reduction of eddy-current losses.

Abstract: A rotor structure for an electric motor includes a cylindrical rotor core assembly and a plurality of permanent magnets disposed on an outer circumference of the rotor core assembly. Wrapped around the rotor core assembly is a bandage to secure the permanent magnets in place, wherein the bandage has a bandage edge arranged in proximity of an end surface of the rotor core assembly. In order to securely fix the bandage edge in place, a securing ring is disposed radially over the bandage edge of the bandage to hold the bandage against the rotor core assembly.

Abstract: An electric machine has a rotor that is rotatable about an axis of rotation, and an especially superconducting winding which is to be cooled to a low temperature. The winding is enveloped by a securing means with a wrap. The outer contour of the wrap of the securing means increases from a smaller outside diameter to a greater outside diameter in the axial direction. The wrap is surrounded in a force-fitting manner by several securing rings which are arranged one behind another and have an inside diameter which conforms to the respective outside diameter of the outer contour.

Abstract: An improved generator rotor (30) and a method of repairing an existing generator rotor (12) are disclosed. Methods consistent with the present invention provide techniques for repairing existing stress-damaged rotors (12) to remove stress-induced cracks (29), without requiring new retaining rings (16), to significantly extend the useful life of a generator without the cost and complexity of conventional repair techniques. Improved generator rotors (30) consistent with the present invention provide a tooth-top design that is more resistant to stress-induced cracking than conventional designs, resulting in new generators with longer useful lives.

Abstract: A rotor and a method of constructing a rotor are disclosed. The rotor includes a hub that is capable of being supported by a shaft that extends along an axis, a plurality of laminations, and a plurality of wire windings supported by the plurality of laminations. The hub includes an inner structure configured to support the hub relative to the shaft, an outer structure that supports the laminations, and an intermediate structure that is coupled to the inner and outer structures and supports the inner and outer structures relative to one another.

Abstract: A rotor body assembly includes a rotor and a containment shell surrounding the rotor, the containment shell having an external peripheral surface provided with a plurality of surface deformations.

Abstract: An electric machine (2) comprising a rotor (4) and a stator (6) arranged coaxially therewith, at least one of said rotor (4) and stator (6) being formed of a plurality of parts and there being provided a bandage (16) holding together the plurality of parts of said rotor and/or stator (6), wherein the bandage (16) is formed of an electrically non-conducting fiber material having a coefficient of thermal expansion similar to the coefficient of thermal expansion of the parts of said rotor (4) and/or stator (6).

Abstract: A magnetic shield assembly for confining rotor windings in a generator includes a substantially cylindrical tubular shield of two or more part-annular segments adapted to enclose the rotor windings; a plurality of axially spaced rings located on the tubular shield; and a plurality of annular spacers radially between the tubular shield and the plurality of rings and axially between adjacent rings to thereby present physical barriers to axial migration of the plurality of rings.

Abstract: An improved generator rotor (30) and a method of repairing an existing generator rotor (12) are disclosed. Methods consistent with the present invention provide techniques for repairing existing stress-damaged rotors (12) to remove stress-induced cracks (29), without requiring new retaining rings (16), to significantly extend the useful life of a generator without the cost and complexity of conventional repair techniques. Improved generator rotors (30) consistent with the present invention provide a tooth-top design that is more resistant to stress-induced cracking than conventional designs, resulting in new generators with longer useful lives.

Abstract: The present invention increases the life of a pole crossover while minimizing the need for timely inspections and costly replacements. The present invention splits the pole crossover band 4 at one or more locations along its circumference and then joins the multiple arcs with a flexible member 10, such as an omega shaped bow. As deflection related stresses 8 increase, the circumference of the pole crossover band, the flexible member 10 allows for a natural expansion point in the otherwise rigid material. This relieves stresses that would otherwise be transferred to the connection point 6 between the pole crossover and the generator windings that can cause cracking and eventually generator failure.

Abstract: Rotor for an electric motor that comprises a core (1), segments of a cylinder (5, 6, 7) made of magnetizable materials, a substantially cylindrical retaining wrapper (10) whose end portions are joined to at least a pair of plane elements (8, 9). The rotor also comprises first elastic means (11, 12, 13) having a length that is not smaller than the length of the core and being supported by means (2, 3, 4) that are integrally provided in the core parallelly to the axis of rotation (X) of the rotor, which interfere with contiguous longitudinal edges of the segments of a cylinder so as to keep said segments circumferentially spaced from each other. In a preferred manner, the rotor also comprises second elastic means (21-26) which are adapted to make up for the longitudinal and radial plays of the various parts of the rotor so as to ensure that the outer surface of the segments of a cylinder keeps in contact with the inner surface of the wrapper. The invention further relates to a method for producing the rotor.

Abstract: A rotor body assembly includes a rotor and a containment shell surrounding the rotor, the containment shell having an external peripheral surface provided with a plurality of surface deformations.

Abstract: An electric machine and method for forming the same comprises a rotor, a rotor winding disposed on the rotor and having a body portion and end turn portions, and a non-metallic cylinder arranged around the rotor to restrain both the body portion and the end turn portions of the winding against forces resulting from a rotation of the rotor. No portion of an inner circumference of the cylinder is smaller than an outer circumference of the rotor so that the cylinder may be slid around the rotor without obstruction during construction of the electric machine. The cylinder surrounds a body portion of the rotor and extends axially beyond end faces of the rotor and has a plurality of holes defined therethrough. The rotor includes a plurality of venting passages and at least one opening formed therein to allow a balance plug to be engaged therein.

Abstract: A high temperature superconducting rotor for a synchronous machine includes a high temperature superconducting field winding, a field winding support concentrically arranged about the high temperature superconducting field winding, and a thermal reserve concentrically arranged about the field winding support. The thermal reserve is thermally coupled to the field winding to maintain a temperature differential between the thermal reserve and the field winding not greater than about 10 K.

Abstract: In a rotary electric machine, a collar for restricting expansion of coil ends includes a boss fitted on an armature rotation shaft, a flange radially extending from the boss and a pressing portion for pressing coil ends toward an armature core. The thickness of the boss is greater than that of the flange, so that the force F1 that is caused by deflection of the flange when coil ends expand due to a temperature increase is smaller than the force F2 that is required to remove the boss from the rotation shaft. The force F1 is applied to the boss in a direction that the collar separates from the armature core. Because the pressing portion presses against the coil ends toward the armature core through an insulation ring, the coil ends are restricted from expanding by a centrifugal force when the armature rotates.

Abstract: An electric machine (2) comprising a rotor (4) and a stator (6) arranged coaxially therewith, at least one of said rotor (4) and stator (6) being formed of a plurality of parts and there being provided a bandage (16) holding together the plurality of parts of said rotor and/or stator (6), wherein the bandage (16) is formed of an electrically non-conducting fiber material having a coefficient of thermal expansion similar to the coefficient of thermal expansion of the parts of said rotor (4) and/or stator (6).

Abstract: A rotor structure for an electric motor includes a cylindrical rotor core assembly and a plurality of permanent magnets disposed on an outer circumference of the rotor core assembly. Wrapped around the rotor core assembly is a bandage to secure the permanent magnets in place, wherein the bandage has a bandage edge arranged in proximity of an end surface of the rotor core assembly. In order to securely fix the bandage edge in place, a securing ring is disposed radially over the bandage edge of the bandage to hold the bandage against the rotor core assembly.

Abstract: A retaining ring for a rotor assembly has inboard and outboard ends. Each of the inboard and outboard ends is formed with a locking key groove open in a radially inward direction, each groove having a base representing a maximum depth of the groove, and a pair of side walls, the base having at least one flat portion therealong. In one embodiment, the groove base is defined by a pair of quarter circles connected by respective flat portions, the slots themselves separated by a raised platform. In a second embodiment, the raised platform is eliminated in favor of a flat base extending between radiused curves at the corners of the groove. In the latter embodiment, a locking ring is employed that has corner radii less than the radii of the curves in the corners of the groove.

Abstract: In an armature, a slot insulation paper provided in a slot of an armature core protrudes from an insulation plate in the axial direction. A part of the slot insulation paper that faces an outer peripheral surface of a coil end is cut out to expose the outer peripheral surface of the coil end. A reinforcing ring is fitted at the axial outside of the armature core to surround the exposed outer peripheral surface of the coil end. Accordingly, the reinforcing ring is disposed close to the armature core in the axial direction. Therefore, a straight portion of the coil end is shortened by an amount of cut of the slot insulation paper, and as a result, the axial length of the armature is shortened.

Abstract: A hybrid synchronous machine includes a cylindrical element having slots; excitation windings situated in at least some of the slots; and permanent magnets situated in at least some of the slots, the permanent magnets comprising radially magnetized permanent magnets.

Abstract: A reluctance rotor and method for manufacturing reluctance rotors having soft magnetic regions and regions with magnetic properties that are dissimilar to those of the soft magnetic region so as to create a flux barrier. The method generally entails producing a magnetic body having a central axis and an outer peripheral surface. The body is composed of concentric regions, at least one of which is a soft magnetic region while at least a second region of the concentric regions is formed of a material with dissimilar magnetic properties to the soft magnetic region. Once formed, the body is divided along radials thereof to form wedge-shaped members, with each wedge-shaped member having coaxial arcuate regions that are portions of the concentric regions of the body.

Abstract: A non-metallic structural enclosure for a generator rotor replaces conventional containment components including rotor wedges, rotor teeth and retaining rings. The enclosure includes a non-metallic tube formed of a plurality of spaced rings or of a continuous tube including ventilation holes or slots. The simplified rotor assembly serves to restrain the winding against centrifugal forces with a more highly optimized use of space and materials. The arrangement allows more space for copper and ventilation, thereby benefiting both efficiency and the performance of the machine. The use of individual rings has the additional benefit of providing restraint against centrifugal forces without reducing the effectiveness of cross slots in the rotor body from correcting peripheral dissymmetries in rotor stiffness. The rings also provide openings for ventilation without introducing stress concentrations in the enclosure.

Abstract: Apparatus for fastening a winding assembly disposed at least partially in an air gap between a stator yoke and a rotor of an electric machine, includes a main body made of electrically insulating non-magnetic material. The main body includes a cylindrical base and a plurality of axial webs projecting radially outwards from the base in a direction of the stator yoke for at least partial engagement in complementary recesses in the stator yoke.

Abstract: An electric machine and method for forming the same comprises a rotor, a rotor winding disposed on the rotor and having a body portion and end turn portions, and a non-metallic cylinder arranged around the rotor to restrain both the body portion and the end turn portions of the winding against forces resulting from a rotation of the rotor. The cylinder is preferably a single integral cylinder made of a graphite epoxy. The cylinder surrounds a body portion of the rotor and extends axially beyond end faces of the rotor and has a plurality of holes defined therethrough. The rotor includes a plurality of slots formed therein to enable a plurality of venting passages to be established and at least one opening formed therein to allow a balance plug to be engaged into an opening. The cylinder also includes a protrusion on its inner periphery to engage a groove on the outer periphery of the rotor.

Abstract: An end winding (10) of a high voltage air-cooled ac generator or motor is made more resistant to surface deterioration by corona activity by using a paint whose binder contains at least 20% by weight silicone. An end winding, including its insulated conductors and separator and support structures, are coated with the paint whose composition includes a solvent or thinner, optional pigments, and the binder containing at least 20% by weight silicone. The balance (if any) of the binder can be, for example, an alkyd, acrylic, phenolic or epoxy resin.

Abstract: In the embodiments described in the specification, a stator for an electric motor has an outer ring member made of resin material and supported from a frame by stator caps and a flanged inner composite ring member made of resin material which receives a steel band. Laminations and coil windings are mounted inside the steel band and an outer wrap of resin material encapsulates the steel band, laminations and coil windings. A rotor arrangement includes a steel hub surrounded by a disk-shaped member made of resin material and having inner and outer rings connected by radial arms. A non-ferromagnetic steel band surrounds the peripheral surface of the disk-shaped member and laminations and magnets or coil windings are positioned on the band and are encapsulated by an outer wrap of resin material.

Abstract: A high temperature superconducting rotor for a synchronous machine includes a high temperature superconducting field winding, a field winding support concentrically arranged about the high temperature superconducting field winding, and a thermal reserve concentrically arranged about the field winding support. The thermal reserve includes a thermally conductive material. The material is either electrically conductive, for example, aluminum, or electrically nonconductive, for example, ceramics such as beryllium oxide or alumina. The thermal reserve material includes segmentation in a direction normal to the rotor axis, along the rotor axis, neither, or both. The rotor includes a banding concentrically arranged about the thermal reserve. The banding includes an electrically conductive material, for example, steel, an electrically nonconductive material, for example, Kevlar, or both. The rotor includes an outer layer concentrically arranged about the thermal reserve.

Abstract: A composite electric motor shaft including axially distributed metallic and nonmetallic sections joined together exhibit increased mechanical damping, increased rotor critical speed, improved corrosion resistance and improved motor performance.

Abstract: An armature in which a commutator and a lead-out section are firmly joined and satisfactory insulation is secured between an armature core and an armature coil. An armature (11) is equipped with: a shaft (2); an armature core (3) secured to the shaft (2); an armature coil (4) composed of conductors (4b) wound in slots (3a) formed in the armature core (3); a commutator (5) secured to the shaft (2); a belt-shaped member (13) which is provided to surround a lead-out section (4a) and which fastens a welded portion (A) where segments (8) of the commutator (5) and the lead-out section (4a) are ultrasonically welded; and a molded portion (12) which covers the outer peripheral surface of the armature core (3) and the outer peripheral surface of the lead-out section (4a).

Abstract: A rotor assembly for a synchronous reluctance machine has a plurality of steel punched star-shaped supports secured along a shaft at spaced locations for retaining a plurality of laminated rotor sections. The star-shaped supports have four equiangularly spaced arms having arcuate valleys disposed therebetween that define a plurality of channels for receiving the rotor sections. The rotor sections are secured to the star-shaped core by a plurality of bands fastened circumferentially around the rotor. A plurality of grooves disposed circumferentially around the rotor receive and retain the bands in place. A rotor bar and arcuate spring may be disposed within a concave cavity defined by the rotor sections to reduce audible noise produced as the rotor rotates at a high rate of speed and provide added compression on the rotor sections to the core. The rotor sections also include a dimpled separator of predetermined thickness disposed between the laminate sheets to optimize the machine.

Abstract: An alternator for a vehicle, including a rotating yoke composed of a pair of hook-shaped magnetic poles arranged in facing relation to each other and being concentrically attached to a shaft, a magnetic-field winding for generating a magnetizing force in the hook-shaped magnetic poles, stator magnetic poles arranged in the periphery of the rotating yoke, magnets for decreasing leakage magnetic flux arranged between the hook portions of the hook-shaped magnetic poles, and protection covers arranged in the positions of the outer surface of the magnets fixed to the side surfaces of the hook portions between the hook portions such that the outer surface does not become higher than the outer periphery of the hook portion.

Abstract: In a binding (19) for winding overhangs (20) of rotors (1) of electric machines, essentially comprising a plastic matrix with fibrous material embedded therein, the binding (19) is formed by winding a fiber tape (15) onto the winding overhang (20). The plastic matrix is composed of a thermoplastic. Furthermore, a method is described for applying the fiber tape to the winding overhang of an electric machine.

Abstract: An armature for an electric rotating machine has a plurality of outer coil elements and a plurality of inner coil elements. Each of the coil elements has end protrusions extending axially outwardly from an axial side of an armature. The end protrusions facing each other in a radial direction is joined by an arc welding. In one method, the end protrusion of the outer coil element is formed a projection at an axially inside of an axial end of the protrusion. The end protrusions are held spaced apart from each other in the radial direction while contacting only through the projection. The axial ends of the protrusions are welded by swinging the welding arc. In another method, a ring-shaped brazing material is interposed between the end protrusions. The brazing material is melted by the welding arc to weld the end protrusions, while cutting out the brazing material existing between two adjacent pairs of the end protrusions.

Abstract: An upper coil bar and lower coil bar are disposed in slots of an armature core. The upper coil bars have upper coil-end sections which extend radially from the outer periphery of the armature core and together form a commutator surface with which a brush member is in contact. The upper coil-end sections and coil-end sections of the lower coil bars are retained by a fixing cap fixed between a shaft of the rotary electric machine and the upper coil-end sections, and also by a spacer disposed between the upper coil-end sections and the lower coil-end sections so that the commutator surface can be maintained smooth even under conditions of thermal expansion or high-speed operation.

Abstract: In a cage rotor for an induction motor, a end ring (22) for connecting conductive rods (20) to one another is covered with a reinforcing member (24). The reinforcing member (24) is obtained by integrally forming a tube-like portion (26) having an inner diameter which is substantially equal to the diameter of a central through hole (14) of a laminated core (26), an annular end wall (28) extending radially outward from one end of the tube-like portion (26) in an axial direction, and an annular engagement wall (30) extending radially outward from the other end of the tube-like portion (26) in the axial direction.

Abstract: In an electrodynamic apparatus, a method of securing a coil basket of the type that includes a plurality of top coils and a plurality of bottom coils to a bracing assembly that includes a plurality of support braces includes steps of banding the top coil, the bottom coil and the support brace to each other; positioning a number of inflatable bladders, respectively, between the top coils and the bottom coils in the location of the bandings; and simultaneously inflating the bladders to a predetermined pressure that is sufficient to tension the bandings to a predetermined force, whereby forces that are transmitted to the coil basket from such inflation are imparted evenly throughout the coil basket and at the same time. An improved end winding region support system is also described.