EP1959460B1 - Procédé de fabrication d'un transformateur - Google Patents

Procédé de fabrication d'un transformateur Download PDF

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Publication number
EP1959460B1
EP1959460B1 EP08010496A EP08010496A EP1959460B1 EP 1959460 B1 EP1959460 B1 EP 1959460B1 EP 08010496 A EP08010496 A EP 08010496A EP 08010496 A EP08010496 A EP 08010496A EP 1959460 B1 EP1959460 B1 EP 1959460B1
Authority
EP
European Patent Office
Prior art keywords
winding
support
winding support
voltage
transformer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08010496A
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German (de)
English (en)
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EP1959460A2 (fr
EP1959460A3 (fr
Inventor
Volker Werner Hanser
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Individual
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Individual
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Publication date
Priority claimed from DE102004048793A external-priority patent/DE102004048793B3/de
Application filed by Individual filed Critical Individual
Publication of EP1959460A2 publication Critical patent/EP1959460A2/fr
Publication of EP1959460A3 publication Critical patent/EP1959460A3/fr
Application granted granted Critical
Publication of EP1959460B1 publication Critical patent/EP1959460B1/fr
Not-in-force legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/16—Toroidal transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/061—Winding flat conductive wires or sheets
    • H01F41/063—Winding flat conductive wires or sheets with insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/08—Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/09—Winding machines having two or more work holders or formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/12—Two-phase, three-phase or polyphase transformers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling

Definitions

  • the invention relates to a high-voltage winding of a toroidal transformer, and their production method, for distribution transformers from a power of 100 kVA and a voltage from 6000 volts, based on toroidal technology.
  • the winding of the high voltage of toroidal distribution transformers high power and voltage for example, 2,000 kVA and 20,000 volts, is very complicated, time-consuming and thus expensive.
  • the high-voltage winding must be divided into several segments, so that the position voltage of the high-voltage winding can be reduced, and the reliability can be ensured. For example, at a voltage of 20,000 volts, 10 segments are provided. The voltage per segment is 2,000 volts. The layer tension is thereby reduced accordingly to a tenth. Furthermore, the voltage resistance to the low-voltage winding must be ensured.
  • a method of winding closed cores with wire in which a wire coil is parallel to a bobbin, a wire is drawn from the wire bobbin and guided by a guide wheel and wound up in layers on the bobbin.
  • a method for winding a closed ring core for high power transformers and chokes is known in which a winding device has a winding to be wound around the toroidal leg guide and several along this guide through the toroidal core transportable, unrollable winding rollers.
  • a device according to the preamble of claim 1 is known from the US 4,639,705 A ,
  • an electrical transformer with improved insulation and coolant conduction in which at least one high voltage electrical winding and at least one electrical resistance winding are disposed about an insulating tube and wherein the tube is routed around the core associated therewith, with a distance therebetween Pipe and the core is maintained and the insulating tube extends axially beyond the carried by this electrical windings.
  • a winding machine in which a split tube is driven about one side of a closed metallic core and has a toothed end, the machine having a drive head with a gear making a drive connection with the tube and with which the tube is rotatable to wind a coil on the pipe.
  • At least one winding station with one on the winding support consisting of two voltage-resistant half-shells with side flange (at least one side flange with an insulated cavity for the implementation of the line material) of insulating high strength, which to a voltage-resistant round Unit assembled around the closed ring core, or the winding support by means of a casting mold around the toroidal core in a Druckgelierhabilit as a whole, for receiving the segments of the high voltage winding of the transformer, consisting of at least one electrical conductor and at least one insulating material with a winding carrier acting on the holding and Drehlagerung for rotatably supporting the winding support, is provided, which holding and pivot bearing has a plurality of circumferentially engaging the winding support rollers or the like rolling elements, vo n which at least one, is connected to the drive and brake device to drive the winding support and decelerate, so that the electrical conductor and the insulating material can be wound onto a closed ring core.
  • the winding support preferably consists of two high-strength half-shells with side flange, which are equipped with an overlapping latching device, or a hinge and an overlapping latching device, which are firmly assembled before the actual winding process to the closed ring core to a round unit, preferably with a special adhesive, so that the voltage resistance to the low-voltage winding can be guaranteed.
  • a further embodiment of the winding carrier provides that a divisible casting mold is placed around the closed ring core, with the aid of which the winding carrier, for example in a Druckgelierhabilit can be made directly on the closed ring core and is located after removal of the mold in one piece around the toroidal core and wound can.
  • the winding support has at least one side flange an insulated cavity with respect to the winding space, wherein at the lower end of the cavity an opening in the winding space of the winding support is to carry out the lower Wicklungsterrorisms, laterally past the winding, upwards.
  • This winding carrier has six advantageous functions firstly to ensure the basic voltage resistance to the undervoltage, secondly the holder for the high-voltage winding, third to allow the winding process, fourthly, the distance of the segments to each other by spacers allows fifth, a predetermined distance to the low-voltage winding is realized and sixth is the insulation of the lower Wicklungstearings by an isolated cavity opposite to the winding in the winding support in a small space upwards allows.
  • the winding carriers can be filled with the segments of the high-voltage winding with one or more insulating materials.
  • the coil carriers can be designed with a cover for insulation, leak-tightness or damage.
  • the winding support can be made electrically conductive to the outside, taking into account that no closed turn around the ring core itself arises. If necessary, this electrically conductive layer can be grounded or set to a defined potential.
  • a winding carrier For winding a winding carrier this is used in the holding and pivot bearing of the winding device and the winding material is supplied to the winding support of the (the) holding and pivot bearing spaced winding material storage roll (s) supplied.
  • the drive and braking device With the drive and braking device, at least one of the rolling elements is driven, or braked and rotated, whereby the winding support on which this rolling body circumferentially engages, gets into rotation.
  • Rolling elements not connected to the drive device serve as a holder for the winding carrier. To avoid frictional forces, these are preferably also rotatably mounted, so that a rolling or rolling of the winding carrier on these rolling elements is possible.
  • a frictional, optionally positive drive and braking device is provided between the winding support and at least the rolling element (s) connected to the drive and braking device.
  • a frictional connection can be realized in a structurally simple manner.
  • Winding material is removed from the winding material storage roll (s) and wound onto the winding carrier. Since the winding material storage roll (s) are fixed in place and are not moved around the winding support, large winding material storage rolls may be used, on which winding material for winding a plurality of winding supports may be sequentially applied. Windings can be wound for high-power toroidal distribution transformers, for example, over 10 MVA. As a winding material both round wires and flat strips can be used.
  • the present invention provides that a plurality of circumferentially juxtaposed winding stations are provided for simultaneously winding a plurality of winding carriers arranged on a toroidal core.
  • a plurality of juxtaposed winding carriers can be wound in groups or all at the same time, as a result of which the time required for winding can be considerably reduced.
  • the number of winding stations can be chosen so that a winding station is available for each winding carrier.
  • This winding carriers can be wound in groups or all at the same time.
  • the control succeeds centrally.
  • the winding device is preferably divided into two levels, wherein the winding material storage roll (s) are arranged in the upper level of the winding device. As a result, the usability is much easier.
  • the floors can also be reversed as needed.
  • At least one winding material storage roll with conductor material and at least one second winding material storage roll with insulation material for the simultaneous, layer-wise winding of Conductor material and insulation material are provided on the winding support. It is also possible to provide three, four, or five winding material storage rolls for simultaneously winding a winding carrier, wherein two, three, or four of the winding material storage rolls carry conductor material and a third, fourth, or fifth winding material storage roll carries insulating material for insulation. When using insulated conductive material, a winding material storage roll is sufficient.
  • the rolling elements are spring-loaded for adaptation to different winding carriers in the diameter and / or the outline shape and are preferably also supported in a damped manner.
  • This makes it possible to wind with a winding station winding support with circular cross-sections and different diameters, without making any structural changes to the winding station, or the holding and pivot bearing.
  • the rolling bearings can be positioned more or less spaced apart from the spring force according to the winding carrier diameter.
  • the dielectric strength can be realized and with the winding device, it is possible, the high-voltage windings for a toroidal distribution transformer in a relatively short time to wind.
  • a transformer in particular the high-voltage winding of a toroidal transformer high power, and their manufacturing process, wherein at least one winding station with a winding support, consisting of two voltage-resistant shells with side flange of high-strength insulating material, which to a voltage-resistant round unit to the closed Combined toroidal, for receiving the segments of the high-voltage winding of the transformer, consisting of an electrical conductor and an insulating material with a winding carrier engaging on the holding and pivot bearing for rotatably supporting the winding support, is provided, which holding and pivot bearing a plurality, peripherally acting on the winding support Rollers or the like rolling elements, of which at least one, is connected to the drive and braking device to drive the winding support and decelerate, so that the electrical conductor can be wound on a closed ring core with the insulating material.
  • a transformer in particular the high-voltage winding of a toroidal transformer high power, and their production method is provided, wherein the winding support is filled after or during the application of the high-voltage winding with solid, liquid or gaseous insulating material.
  • a transformer is provided, wherein at least one side flange of a winding carrier is provided with an insulated cavity, wherein at the lower end of the cavity an opening in the winding space of the winding support, for the implementation of the underlying winding start of the line material of the high-voltage winding upwards located.
  • a transformer wherein a divisible mold is placed around the closed ring core, with the aid of the winding support, for example, can be made in a Druckgelierbacter directly to the closed ring core and after removal of the mold is in one piece around the ring core and can be wound.
  • a transformer wherein the winding support consists of at least two parts with side flange, they are equipped with at least one overlapping latching device, or a hinge and an overlapping latching, the before the actual winding process to the closed ring core to a round unit , preferably with a special stress-resistant adhesive are joined together.
  • a transformer wherein the winding support consists of several insulating materials, and wherein the winding support has holders for the high-voltage winding, and wherein the side flanges of the winding carrier have a frictional or form-fitting surface, and wherein the winding support spacers for setting a has defined spacing of the segments to each other, and wherein the winding support has holders for setting a defined distance to the low-voltage winding.
  • a transformer wherein the coil carrier with a casting resin under atmospheric conditions, casting resin filling under vacuum, casting resin filling by a Druckgelierbacter or in a dense implementation with gaseous or liquid insulating materials, for example with nitrogen or an insulating oil, during or after the winding process is filled.
  • a transformer is provided, wherein the winding support can be carried out to be electrically conductive, taking into account that no closed turn around the toroid itself, this electrically conductive layer can be grounded, or can be set to a defined potential.
  • a transformer is provided, wherein for the simultaneous winding of several, arranged on a toroidal winding carrier a plurality, circumferentially juxtaposed winding stations are provided.
  • a transformer wherein the winding device is divided into two floors, wherein the winding material Vorratsungsrolle (s) in the upper floor of the winding device or vice versa are arranged.
  • a transformer wherein at least one winding material storage roll with conductor material and at least one second winding material storage roll with insulation material for the simultaneous, layer-wise winding of conductor material and insulation material are provided on the winding support, or three, four or five winding material storage rollers for simultaneously winding a winding carrier, wherein two, three or four, the winding material storage rolls of conductor material and a third, fourth or fifth winding material storage roll carries insulation material for insulation.
  • a transformer wherein the rolling elements are sprung for adaptation to the diameter and / or the outline of different winding support and are preferably also supported damped.
  • the invention also relates to the low-voltage winding of a toroidal distribution transformer, as well as their manufacturing process, a closed multi-stage transformer core high stability, electrically insulated to the outside, as well as on its manufacturing process, for distribution transformers in cast resin technology, from a power of 100 kVA and a voltage from 6000 V, based on the ring core technology.
  • Low-voltage windings for distribution transformers have very large cross-sections, for example, for 1,000 kVA this is about 1,500 mm2. Such cross sections are made for conventional distribution transformers in the leg construction with wide electrically conductive bands. In a toroidal distribution transformer, no such bands can be used due to the geometric conditions. The undervoltage winding would have to be produced in a very complex form by parallel connection of electrically insulated flat wires. Ring cores for toroidal transformers are today only produced for low power and low voltage in one-stage form. Multistage closed high strength toroidal transformer cores and insulated to the outside for distribution transformers and their manufacturing processes are not known.
  • the achievement of this object is that a turn of the low-voltage winding of an electrically conductive material is preformed in two halves, these two halves are electrically connected to each other around the closed ring core, wherein at least one half has a floor, so that a spiral winding, consisting is formed from several turns on the closed ring core, for the toroid, a thin magnetically conductive material is wound into a multi-stage closed toroidal transformer core, between the magnetically conductive material is an adhesive which mutually isolated the material (to avoid eddy currents) and the toroidal core solidified and the electrical insulation is obtained with respect to the low voltage winding with spacers or spacers made of electrically non-conductive material.
  • the toroidal transformer core can be completely cast with an electrically non-conductive casting resin high strength.
  • a further embodiment provides that the electrical insulation (core for undervoltage winding) is realized by at least three spacer rings or in each case three spacers per turn, which are fixedly mounted in the steps of the toroidal core. Subsequently, the toroidal core is coated with a varnish for insulation and protection against corrosion.
  • One turn of the undervoltage winding is preformed from two halves with electrically conductive material, for example aluminum with a cross-section of 1500 mm 2 . At least one half has a floor, so that from the individual halves a turn and from the turns a continuous spiral winding is formed, the shape of the floor sets the distance to the isolation of the turns against each other.
  • the individual halves can be screwed and / or welded.
  • the advantage of the toroidal core technology is that it allows toroidal distribution transformers to be realized in the highest power range, which are extremely low-loss and only about 50% of the operating costs of conventional distribution transformers in casting resin technology.
  • the toroidal distribution transformer refinances in a few years and, in addition, a significant amount of primary energy, for the conservation of resources and the environment, can be saved.
  • a transformer in particular a spiral undervoltage winding high cross-section and their manufacture, a multi-stage closed toroidal transformer high stability, from magnetically conductive and mutually insulated material, electrically insulated for undervoltage winding, and its manufacturing method, preferably a support frame with at least 3 Vorratsrollenvorlegien, each with a braking device, with at least 2 different widths of magnetically conductive material, at least three Klebersprühvorraumen, and at least three Aufwickelvortechniken with a drive system, at least three guide devices, a guide rail, and a cutting device is provided.
  • a transformer in particular a spiral undervoltage winding high cross-section and their manufacture, a multi-stage closed toroidal transformer high stability, from magnetically conductive and mutually insulated material, electrically insulated for undervoltage winding, and its manufacturing method, preferably a support frame with at least 3 Vorratsrollenvoridesen, each with a braking device, with at least 2 different widths of magnetically
  • each supply roll device as well as each take-up device is equipped with a drive and brake device.
  • a transformer is provided, wherein at least three spacer rings or three spacers per turn, are firmly attached in the gradations of the toroidal core.
  • a transformer is provided, the toroidal core being coated with a varnish for insulation and for protection against corrosion.
  • a transformer is provided wherein the toroidal transformer core is encased in a high strength cast resin.
  • the object is also achieved by a transformer, in particular a spiral low-voltage winding of high cross-section and their manufacture, a multi-stage closed toroidal transformer high stability, from magnetically conductive and mutually insulated material, electrically insulated for undervoltage winding, and its manufacturing process, wherein a turn of the low-voltage winding an electrically conductive material is preformed in two halves, these two halves are electrically conductively connected to each other around the closed ring core, wherein at least one half has a floor, so that a spiral winding, consisting of several turns on the closed ring core is formed.
  • a method wherein the winding halves are screwed together or / and welded.
  • FIG. 1 is a generally designated with 101 polyphase transformer having three stacked axially in the axial direction of ring cores 102.
  • adjacent ring cores 102 carry phase windings of different phases, wherein the phase windings are respectively applied to the ring cores 102 annularly enclosing coil bobbins 103.
  • bobbin 103 may be alternately arranged with primary and secondary windings next to each other or one above the other. It is also possible for primary and secondary windings to be applied together to a bobbin 103.
  • the ring cores 102 are arranged in a holding device 104 which has outer and inner guide rails 105a, 105b for forming a receiving region for the toroidal cores 102.
  • the guide rails 105a, 105b are each made of insulating material, so that the ring cores 102 and the phase windings on the bobbin 103 of the ring cores 102 are laterally outwardly insulated.
  • the holding device 104 has on its underside a bottom part 107, which likewise consists of insulating material.
  • insulating support elements 108 are provided for the lower ring core 102.
  • a plurality of spaced bearing elements 108 may be provided, or it is a continuous ring as a support element 108 is provided.
  • Spacers 109 are respectively provided between the individual ring cores 102 with which the ring cores 102 or the coil cores 103 respectively assigned to the toroidal cores 102 are fixed relative to one another in their position.
  • Insulating support elements 108 are again provided above the upper ring core 102, on which a cover part 110 rests and the toroidal cores 102 are also insulated on the upper side towards the outside.
  • the Indian FIG. 1 shown polyphase transformer 101 is formed as a three-phase transformer.
  • the connection points of the individual phase windings of the toroidal cores 102 or of the spool bodies 103, which are not illustrated in more detail, are each offset by 120 ° relative to one another.
  • the phase windings are thereby mechanically offset from one another by an angle which corresponds to the electrical phase shift or the electrical phase angle between the voltage signals of these phase windings.
  • the multi-phase transformer 101 can thereby be constructed compact and with reduced space requirements.
  • no or only little insulation measures are required, whereby costs are saved and the construction is simplified.
  • the ring cores 102 are formed with their respective bobbins 103 like a module.
  • the affected toroidal core can be exchanged for a replacement module or the defective module is electrically disconnected and a replacement module is provisionally connected to the polyphase transformer 101.
  • a replacement module is provisionally connected to the polyphase transformer 101.
  • FIG. 2 a winding device, generally designated 201, for winding winding carriers 202 is shown.
  • the winding device for winding winding carriers 202 with winding material 204a, 204b stored on rotatably mounted winding material storage rollers 203a has two winding stations 205, which are arranged at 90 degrees from one another, on a ring core 6 indicated as an option.
  • the winding stations 205 each have a support frame 207, with a holding and pivot bearing 208, for each one winding support 202.
  • the winding supports 202 are each arranged concentrically around the ring core 206, wherein an air gap 20 9 remains free between the ring core 206 and the winding supports 202.
  • the ring core 206 is held with a holding device, not shown, in the position shown.
  • the holding and pivot bearings 208 three each have on a roller holder 211, rotatably mounted rollers 210 as rolling elements, which act on the winding support 202.
  • Two of the rollers 210 support the winding support 202 while from below and thus form a stable support and the third roller 210 acts on the winding support 202, from above, so that the winding support 202 is practically pinched by three rollers 210 and accidentally releasing the winding support 202 of the Holding and pivot bearing 208 is avoided.
  • the rollers 210 are connected to a drive and brake device, not shown, with which the rollers are rotated in the direction of the arrows.
  • a frictional drive and braking device is provided between the rollers 210 and the winding support 202, so that when rotating the rollers 210 in a clockwise direction, the winding support 202 is rotated in opposite directions.
  • the winding material 204a, 204b is detached from the rotatably mounted winding material storage rollers 203a, 203b and wound onto the winding carrier 202.
  • the winding carriers 202 of the individual winding stations 205 can be wound simultaneously.
  • the winding carriers 202 are made of a high-strength insulating material, each coil-like with the winding space 213 and laterally defining flanges 214 are formed.
  • the insulation material is required for dielectric strength, in particular with respect to the low-voltage winding. The high strength is needed for the winding process, as well as the holding of the relatively heavy winding material.
  • the outer edges of these side flanges 214 serve as loading surfaces for the rollers 210.
  • the winding material 204a, 204b can be guided between the side flanges 214 on the winding support 202 without hindering the supply of the winding material 204a, 204b by the rollers 210.
  • the side flanges 214 form an insulation to adjacent coil carriers, as well as lateral boundary for the coil material 204a, 204b.
  • the rollers 210 are spring-loaded and damped at their roller holder 211, respectively. This allows the rollers 210, a holding and pivot bearing 208 move apart to use a winding support 202, in the holding and pivot bearing and remove again. In addition, it is possible to wind winding carriers of different sizes.
  • a first winding material storage roll 203a, with conductor material 204a, and a second winding material storage roll 203b with insulating material 204b, for simultaneously, layer by layer wrap the conductor and the insulating material, on a winding support 202 are provided.
  • the invention relates to a high-voltage winding of a toroidal transformer, as well as their method of manufacture, for distribution transformers, based on toroidal technology.
  • the winding station with one on the winding carrier, consisting of two voltage-resistant half-shells with side flange High-strength insulating material which is assembled to form a voltage-resistant round unit around the closed ring core, for receiving the segments of the high-voltage winding of the transformer, consisting of at least one electrical conductor and at least one insulating material with a holding and pivot bearing engaging on the winding support for rotatably supporting the winding support is, so that the electrical conductor and the insulating material can be wound onto a closed ring core.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Insulating Of Coils (AREA)

Claims (15)

  1. Dispositif de fabrication de l'enroulement haute tension d'un transformateur à noyau toroïdal, dans lequel est prévu au moins un poste de bobinage (205) muni d'un système (208) de retenue et de support rotatif, en vue du montage rotatif d'un support d'enroulement (202) dudit transformateur à noyau toroïdal, lequel système (208) de retenue et de support rotatif comporte plusieurs rouleaux (210) ou corps similaires de roulement en applique contre le pourtour du support d'enroulement (202), et dont au moins l'un est relié à un dispositif d'entraînement et de freinage, afin d'entraîner et de freiner ledit support d'enroulement (202) de façon telle qu'un conducteur électrique, pourvu d'un matériau isolant, puisse être enroulé sur un noyau toroïdal fermé (206), sachant que des bandes aplaties peuvent être utilisées en tant que matériau de bobinage, caractérisé en ce que plusieurs postes de bobinage (205), agencés en juxtaposition dans la direction périphérique, sont prévus pour le bobinage simultané de plusieurs supports d'enroulements (202) disposés sur le noyau toroïdal.
  2. Dispositif selon la revendication 1, caractérisé en ce que le support d'enroulement (202) est constitué de deux demi-coques résistant à la tension, dotées d'un collet latéral (214) en un matériau isolant de haute robustesse et assemblées, autour du noyau toroïdal fermé (206), en un ensemble unitaire circulaire résistant à la tension.
  3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que le support d'enroulement (202) entoure, d'un seul tenant, le noyau toroïdal fermé (206).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que les supports d'enroulements (202) sont respectivement agencés de manière concentrique autour du noyau toroïdal (206).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les systèmes (208) de retenue et de support rotatif sont respectivement pourvus, en tant que corps de roulement, de trois rouleaux (210) qui sont montés à rotation sur un porte-rouleau (211) et sollicitent le support d'enroulement (202), sachant que deux, parmi lesdits rouleaux (210), procurent un soutien de bas en haut audit support d'enroulement et que le troisième rouleau (210) agit de haut en bas sur ledit support d'enroulement (202), de sorte que ledit support d'enroulement (202) est pratiquement enserré par les trois rouleaux (210) et qu'une dissociation involontaire dudit support d'enroulement (202), d'avec le système (208) de retenue et de support rotatif, s'en trouve évitée.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce qu'au moins un rouleau (203a) de réserve en matériau de bobinage, offrant un matériau conducteur (204a), et au moins un second rouleau (203b) de réserve en matériau de bobinage, offrant un matériau isolant (204b), sont prévus à chaque poste de bobinage afin de déposer simultanément, par couches, du matériau conducteur et du matériau isolant sur le support d'enroulement (202).
  7. Dispositif selon la revendication 6, caractérisé en ce que trois, quatre ou cinq rouleaux de réserve en matériau de bobinage sont prévus pour le bobinage simultané d'un support d'enroulement (202) ; et en ce que deux, trois ou quatre desdits rouleaux de réserve en matériau de bobinage portent du matériau conducteur, et un troisième, quatrième ou cinquième rouleau de réserve en matériau de bobinage porte du matériau isolant, en vue de l'isolation.
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé par la présence, en vue du montage du support d'enroulement (202), de corps de roulement (212) à montage suspendu élastiquement et/ou amorti, en vue de l'adaptation à des supports d'enroulements (202) présentant des diamètres et/ou des profils différents.
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que chaque dispositif à rouleaux de réserve, ainsi que chaque dispositif de bobinage, sont équipés d'un dispositif d'entraînement et de freinage.
  10. Procédé dévolu à la fabrication d'un transformateur à noyau toroïdal et dans lequel, en vue du bobinage d'un support d'enroulement (202), ce dernier est inséré dans un système (208) de retenue et de support rotatif d'un dispositif (201) conforme à l'une des revendications 1 à 9, le matériau de bobinage (204a, 204b) étant délivré audit support d'enroulement (202) par le(s) rouleau(x) (203a, 203b) de réserve en matériau de bobinage qui est/sont placé(s) à distance dudit système (208) de retenue et de support rotatif, au moins un corps de roulement (210) étant respectivement entraîné ou freiné par un dispositif d'entraînement et de freinage, ce qui imprime une rotation au support d'enroulement (202) contre le pourtour duquel ce corps de roulement (210) est en applique, sachant que des bandes aplaties peuvent être utilisées en tant que matériau de bobinage, un moule de coulée, pouvant être scindé, étant mis en place autour du noyau toroïdal fermé (206) en vue de produire le support d'enroulement (202), ledit support d'enroulement (202) étant produit par un procédé de gélification sous pression, et ledit support d'enroulement (202) étant bobiné après l'enlèvement dudit moule de coulée.
  11. Procédé selon la revendication 10, caractérisé en ce que le support d'enroulement (202) est empli de matériau isolant solide, liquide ou gazeux après ou pendant la mise en place de l'enroulement haute tension.
  12. Procédé selon l'une des revendications 10 ou 11, caractérisé en ce que, pendant ou après le processus de bobinage, le support d'enroulement (202) est empli d'une résine coulée sous conditions atmosphériques, d'un garnissage en résine coulée sous vide, d'un garnissage en résine coulée par un procédé de gélification sous pression ; ou, dans le cas d'une réalisation étanche, par des substances isolantes gazeuses ou liquides, en particulier de l'azote ou une huile à effet d'isolation.
  13. Procédé selon l'une des revendications 10 à 12, caractérisé en ce que du matériau conducteur (204a, 204b) et du matériau isolant (204a, 204b) sont simultanément déposés, par couches, sur le support d'enroulement (202).
  14. Procédé selon l'une des revendications 10 à 13, caractérisé en ce que des fils métalliques ronds sont utilisés en tant que matériau de bobinage.
  15. Procédé selon l'une des revendications 10 à 13, caractérisé en ce que des bandes aplaties sont utilisées en tant que matériau de bobinage.
EP08010496A 2004-10-07 2005-10-06 Procédé de fabrication d'un transformateur Not-in-force EP1959460B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004048793A DE102004048793B3 (de) 2004-10-07 2004-10-07 Ringkern-Transformator
DE102005041975 2005-09-03
EP05799949A EP1797573B1 (fr) 2004-10-07 2005-10-06 Transformateur a noyau toroidal

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP05799949A Division EP1797573B1 (fr) 2004-10-07 2005-10-06 Transformateur a noyau toroidal
EP05799949.2 Division 2005-10-06

Publications (3)

Publication Number Publication Date
EP1959460A2 EP1959460A2 (fr) 2008-08-20
EP1959460A3 EP1959460A3 (fr) 2008-10-01
EP1959460B1 true EP1959460B1 (fr) 2012-04-18

Family

ID=35509325

Family Applications (3)

Application Number Title Priority Date Filing Date
EP05799949A Not-in-force EP1797573B1 (fr) 2004-10-07 2005-10-06 Transformateur a noyau toroidal
EP08010496A Not-in-force EP1959460B1 (fr) 2004-10-07 2005-10-06 Procédé de fabrication d'un transformateur
EP08010495A Not-in-force EP1959459B1 (fr) 2004-10-07 2005-10-06 Procédé de fabrication d'un noyau toroïdal

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05799949A Not-in-force EP1797573B1 (fr) 2004-10-07 2005-10-06 Transformateur a noyau toroidal

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08010495A Not-in-force EP1959459B1 (fr) 2004-10-07 2005-10-06 Procédé de fabrication d'un noyau toroïdal

Country Status (24)

Country Link
US (1) US20080007378A1 (fr)
EP (3) EP1797573B1 (fr)
JP (1) JP2008516433A (fr)
KR (1) KR20070102987A (fr)
CN (1) CN101036204A (fr)
AP (1) AP2125A (fr)
AT (3) ATE554488T1 (fr)
AU (1) AU2005293857B2 (fr)
BR (1) BRPI0516543A (fr)
CA (1) CA2583262A1 (fr)
CY (1) CY1109446T1 (fr)
DE (1) DE502005006711D1 (fr)
DK (1) DK1797573T3 (fr)
EA (3) EA012993B1 (fr)
EG (1) EG24744A (fr)
ES (1) ES2321638T3 (fr)
MA (1) MA29002B1 (fr)
MX (1) MX2007004125A (fr)
PL (1) PL1797573T3 (fr)
PT (1) PT1797573E (fr)
SI (1) SI1797573T1 (fr)
TN (1) TNSN07129A1 (fr)
WO (1) WO2006040074A1 (fr)
ZA (1) ZA200702353B (fr)

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FR2907591B1 (fr) * 2006-10-20 2009-01-16 Centre Nat Rech Scient Procede d'alimentation d'un coupleur magnetique et dispositif d'alimentation d'un dipole electrique.
US7834736B1 (en) 2009-07-31 2010-11-16 Abb Technology Ag Dry type pole-mounted transformer
US9257412B2 (en) * 2012-09-12 2016-02-09 Taiwan Semiconductor Manufacturing Company, Ltd. Stress reduction apparatus
CN103050273B (zh) * 2012-12-27 2015-12-09 吴江变压器有限公司 三相椭圆形线圈用的压具
US9878060B2 (en) * 2014-02-19 2018-01-30 Tetra Laval Holdings & Finance S.A. Sterilization device and an electron beam emitter
CN103971921A (zh) * 2014-05-19 2014-08-06 苏州上电科电气设备有限公司 一种变压器绕线机夹具
RU168099U1 (ru) * 2016-06-16 2017-01-18 Публичное акционерное общество "Транснефть" (ПАО "Транснефть") Трансформатор преобразовательный трехфазный многообмоточный с замкнутой системой воздушного охлаждения
MX2019015008A (es) 2017-06-13 2020-02-26 Radyne Corp Ensamble de autotransformador portatil toroidal.
CN112335002A (zh) * 2018-05-31 2021-02-05 豪倍公司 三相环形变压器
DE102018118551A1 (de) * 2018-07-31 2020-02-06 Tdk Electronics Ag Verfahren zur Herstellung eines induktiven Bauelements und induktives Bauelement

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DE1016377B (de) * 1954-12-27 1957-09-26 Licentia Gmbh Kreisfoermiger Bandringkern mit abgestuftem Kernquerschnitt
US3043000A (en) * 1958-04-24 1962-07-10 Mc Graw Edison Co Method of forming a conductive coil on a closed magnetic core
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FR1333285A (fr) * 1962-09-04 1963-07-26 A R L Etablissements Augier So Nouveau mode de fabrication des noyaux magnétiques et enroulements de transformateurs
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Also Published As

Publication number Publication date
PT1797573E (pt) 2009-05-21
EP1797573B1 (fr) 2009-02-25
AP2007003983A0 (en) 2007-06-30
ATE554489T1 (de) 2012-05-15
CN101036204A (zh) 2007-09-12
EP1959459B1 (fr) 2012-04-18
ES2321638T3 (es) 2009-06-09
AU2005293857B2 (en) 2009-10-01
AP2125A (en) 2010-05-17
JP2008516433A (ja) 2008-05-15
PL1797573T3 (pl) 2009-07-31
DE502005006711D1 (de) 2009-04-09
EA200900169A1 (ru) 2009-06-30
ZA200702353B (en) 2008-04-30
CY1109446T1 (el) 2014-08-13
CA2583262A1 (fr) 2006-04-20
WO2006040074A1 (fr) 2006-04-20
SI1797573T1 (sl) 2009-08-31
ATE554488T1 (de) 2012-05-15
EP1959460A2 (fr) 2008-08-20
US20080007378A1 (en) 2008-01-10
EA012485B1 (ru) 2009-10-30
EP1959460A3 (fr) 2008-10-01
ATE424030T1 (de) 2009-03-15
MA29002B1 (fr) 2007-11-01
EA012992B1 (ru) 2010-02-26
EA012993B1 (ru) 2010-02-26
MX2007004125A (es) 2007-08-02
EP1959459A2 (fr) 2008-08-20
TNSN07129A1 (en) 2008-11-21
EP1797573A1 (fr) 2007-06-20
DK1797573T3 (da) 2009-06-02
EA200700561A1 (ru) 2007-10-26
BRPI0516543A (pt) 2008-09-09
EA200900170A1 (ru) 2009-06-30
KR20070102987A (ko) 2007-10-22
AU2005293857A1 (en) 2006-04-20
EP1959459A3 (fr) 2008-09-03
EG24744A (en) 2010-07-18

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