EP0056580A1 - Winding for an air-cooled dry transformer or reactor having spacers in the air channels - Google Patents

Winding for an air-cooled dry transformer or reactor having spacers in the air channels Download PDF

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Publication number
EP0056580A1
EP0056580A1 EP82100047A EP82100047A EP0056580A1 EP 0056580 A1 EP0056580 A1 EP 0056580A1 EP 82100047 A EP82100047 A EP 82100047A EP 82100047 A EP82100047 A EP 82100047A EP 0056580 A1 EP0056580 A1 EP 0056580A1
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EP
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Prior art keywords
winding
spacer elements
winding according
cross
air
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Granted
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EP82100047A
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German (de)
French (fr)
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EP0056580B1 (en
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Jacobus F.H. Van Der Vegt
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Holec Systemen en Componenten BV
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Smit Transformatoren BV
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    • 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/322—Insulating of coils, windings, or parts thereof the insulation forming channels for circulation of the fluid

Definitions

  • the invention relates to a winding for an air-cooled dry-type transformer or a choke coil, in which circumferential air channels between at least two winding layers are kept open by rod-shaped spacer elements which are distributed over the circumference in the axial direction or obliquely thereto.
  • the invention is accordingly based on the basic idea of replacing the full profile spacer elements with those that do not have a full profile, but rather a web profile that is open at least on one side.
  • Such spacer elements can be produced from plastic by extrusion.
  • the support legs can lie parallel to one another and, in cross section, form an H or N configuration together with the connecting web.
  • the or ⁇ configuration has the advantage that the top and bottom are the same when inserted.
  • the ⁇ configuration again leads to a somewhat greater strength, since the connecting crossbar forms a kind of roof.
  • the spacer elements can, for example, be applied to an auxiliary carrier provided with an adhesive layer. It is also possible to connect them to one another at their free ends or in other areas via a spray skin or a thin film.
  • the film should be so thin or appropriately perforated that it can easily be torn again.
  • the partial winding which is shown in Figure 1, is made of winding wire or foil winding, as is known as the prior art.
  • the spacer elements 3 are designed as an open profile, the cross section having a configuration.
  • the configuration consists of two support legs 4, 5 which are parallel to one another and are rigidly connected to one another with a connecting web 6 lying perpendicular thereto.
  • the wall thickness of the support legs is about 5 - 20% of the cross-sectional width or height.
  • This shape of the spacer elements enables the Cross section of the spacer element is used for the heat transport by the cooling air, while at the same time a relatively dense covering of the circumference with spacer elements is possible to increase the strength.
  • the covering of the cross section with winding material be it wire or be it foil, can be increased.
  • the spacer elements can be connected to one another at their feet or free ends 7 with a fine spray skin 8, so that insertion is facilitated. Instead of a spray skin, another thin film, which is advantageously easy to tear, can be used.
  • the spacer elements are preferably made of plastic in the extrusion process or of glass fiber reinforced plastic, the preferred fiber direction being in the element axis direction.
  • FIGS. 2 a) to d show a cross-sectional shape similar to that in FIG. 1.
  • the support legs 4, 5 end in foot-like widenings 9.
  • the spacer elements have stiffeners 10. In the present case, these stiffeners are thickened portions of the plastic mass used.
  • the cross-sectional shape shown in FIG. 2 a) is therefore suitable for absorbing a greater load than the profile of FIG. 1.
  • FIG. 2 b shows a cross-sectional shape in which the support legs 4 b, 5 b diverge towards the free ends 9 b, the ends which are close to one another being connected to one another by a connecting web 6 b. This results in a trapezoidal shape in cross section. If the web 6 is omitted and a corresponding one Inclination of the legs 4 b, 5 b selected, a V-shape can also result.
  • Figure 2 c shows a so-called H configuration, in which the support legs 4 c, 5 c are parallel to each other and are connected approximately in the middle by a connecting web 6 c.
  • This configuration has the advantage that the top and bottom can be interchanged during assembly.
  • FIG. 2 d shows a configuration in which the support legs 4 d, 5 d are parallel to one another and are connected to one another by an arch 3 d instead of by a straight web.
  • an arch can deflect the applied forces particularly well to the sides.
  • the height and length of the support legs in relation to the connecting webs or the bend results from the necessary distances of the winding layers to be cooled or from the heat dissipation necessities known to the person skilled in the art for a certain electrical winding power. Otherwise, the proportions of the parts relative to one another can be read from FIGS. 1 and 2.
  • the new spacer elements are inserted and attached, as is known.
  • auxiliary spacer elements during the winding and to remove them again after the winding has hardened.
  • glue the spacer elements onto a carrier film and to attach them in the desired arrangement within the windings.
  • the spacer elements can be introduced within the high-voltage, low-voltage winding or inserted between the high and low-voltage winding.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Transformer Cooling (AREA)

Abstract

1. A winding for a dry transformer or reactor, in which the hollow space between at least two winding layers (1, 2) is divided into a plurality of axially extending cooling channels by an axially aligned spacer assembly, with the spacer assembly including supporting legs interconnected with a spacing from each other, characterized in that in the spacer assembly, two of the supporting legs (4, 5; 4b, 5b; 4c, 5c; 4d, 5d) each terminate freely and are rigidly interconnected in pairs to define separate distance elements (3).

Description

Die Erfindung betrifft eine Wicklung für einen luftgekühlten Trockentransformator oder eine Drosselspule, bei der zirkumferentiale Luftkanäle zwischen wenigstens zwei Wicklungslagen durch in Achsenrichtung oder schräg dazu liegende, über den Umfang verteilte, stabförmige Distanzelemente offen gehalten sind.The invention relates to a winding for an air-cooled dry-type transformer or a choke coil, in which circumferential air channels between at least two winding layers are kept open by rod-shaped spacer elements which are distributed over the circumference in the axial direction or obliquely thereto.

Es ist bekannt, bei sogenannten Trockentransformatoren oder ähnlich aufgebauten Drosselspulen mit Luftkühlungskanälen den Aufbau der Windungen zu einer Wicklung so vorzunehmen, daß im Naßwickelverfahren die Wicklungsdrähte in einer aushärtenden Kunstharzbettung gewickelt werden, wobei je nach Belastung und Erfordernissen zwischen Wicklungslagen zirkumferentiale Luftkanäle gelassen werden, in denen stabförmige Distanzelemente eingelegt werden. Dabei können zur Erleichterung des Wickelns und zur genauen Distanzhaltung Hilfsstäbe eingelegt werden, die nach dem Wickeln wieder entfernt werden. Es ist auch möglich, die Distanzelemente nicht genau axial, sondern etwas schräg zur Achse zu legen. Ein Wicklungsverfahren der beschriebenen Art ist beispielsweise aus der US-A 3 170 225 zu ersehen. Die Distanzelemente bestehen üblicherweise aus Holz oder Kunststoff. Im Querschnitt zeigen sie ein rechteckiges Vollprofil. Es ist ersichtlich, daß der durch die Distanzelemente eingenommene Platz für den Kühlkanalquerschnitt verlorengeht.It is known in so-called dry-type transformers or similarly constructed choke coils with air cooling ducts to make the windings to form a winding in such a way that the winding wires are wound in a hardening synthetic resin bed in the wet winding method, depending on the load and requirements between winding layers, circumferential air channels are left in which rod-shaped spacer elements are inserted. To facilitate winding and for precise spacing, auxiliary rods can be inserted, which are removed again after winding. It is also possible not to place the spacer elements exactly axially, but rather at an angle to the axis. A winding method of the type described can be seen, for example, from US Pat. No. 3,170,225. The spacer elements usually consist of wood or plastic. In cross section they show a rectangular full profile. It can be seen that the space occupied by the spacer elements for the cooling channel cross section is lost.

Es ist auch schon bekannt, mäandrierende oder in Sägezahnform gewellte Folien in den Kühlkanal-Raum einzulegen. Hierzu wird beispielsweise auf die Figur 4 der NL-A 7 209 447 verwiesen. Diese Art der Gestaltung der Distanzelemente hat den Vorteil, daß der Kühlkanal einen größeren lichten Querschnitt erhält.It is also known to insert meandering or sawtooth-shaped foils into the cooling channel space. For this purpose, reference is made, for example, to FIG. 4 of NL-A 7 209 447. This type of design of the spacer elements has the advantage that the cooling channel has a larger clear cross section.

Es zeigt sich allerdings, daß eine besondere Problematik durch die bekannten Abstandselemente nicht gelöst wird. Wie bekannt, werden die Wicklungslagen der innenliegenden Wicklungen, d. h. derjenigen Wicklungen, die direkt um den Kernschenkel angeordnet sind, im Kurzschlußfall mit erheblichen Kräften in Richtung Kern gedrückt. Bei den außen liegenden Wicklungen sind die Kräfte radial nach außen gerichtet. Diese Kräfte müssen durch die Distanzhalter aufgefangen werden. Während des normalen Betriebes der Wicklungen sind diese Kräfte nicht so hoch. Im allgemeinen wird daher der Konstrukteur einen Kompromiß suchen zwischen dem zirkumferentialen Abstand der einzelnen Distanzelemente und der notwendigen Festigkeit gegenüber den Wicklungskräften zwischen den Distanzelementen. Es ist deshalb beim Wickeln eine besondere "Kunst", die unmittelbar auf den Distanzelementen liegenden Bereiche der Wicklung etwas stärker mit Kunstharz zu tränken, um eine stärkere Durchbiegungskraft aufnehmen zu können. Diese besondere Art der Herstellung ist natürlich nicht besonders leicht reproduzierbar, so daß im allgemeinen eine dichtere'Folge der Distanzelemente aus Sicherheitsgründen gewählt werden muß. Bei den gewellten Einlagen dagegen sind die Abstände bestimmt und können praktisch nicht variiert werden.It turns out, however, that a particular problem is not solved by the known spacer elements. As is known, the winding layers of the inner windings, i.e. H. of the windings which are arranged directly around the core leg, pressed in the event of a short circuit with considerable forces in the direction of the core. For the external windings, the forces are directed radially outwards. These forces must be absorbed by the spacers. These forces are not as high during normal operation of the windings. In general, the designer will therefore seek a compromise between the circumferential distance of the individual spacer elements and the necessary strength against the winding forces between the spacer elements. It is therefore a special "art" when winding to soak the areas of the winding lying directly on the spacer elements somewhat more strongly with synthetic resin in order to be able to absorb a greater deflection force. Of course, this particular type of production is not particularly easy to reproduce, so that in general a denser sequence of the spacer elements must be chosen for safety reasons. With corrugated inserts, on the other hand, the distances are determined and can practically not be varied.

Es stellt sich demnach die Aufgabe, die Wicklung für luftgekühlte Trockentransformatoren so dicht und straff wie möglich wickeln zu können, ohne daß die erforderliche Kühlleistung darunter leidert, oder umgekehrt, eine ausreichende Kühlleistung auch dann herzustellen, wenn die Wicklung möglichst dicht und straff gewickelt ist.It is therefore the task of being able to wind the winding for air-cooled dry-type transformers as tightly and tightly as possible without the required cooling capacity being impaired, or vice versa, to produce sufficient cooling capacity even if the winding is wound as tightly and tightly as possible.

Diese Aufgabe wird gelöst bei einer Wicklung für einen luftgekühlten Trockentransformator oder eine Drosselspule, bei der die über den Umfang verteilten Distanzelemente keinen Vollquerschnitt aufweisen, sondern aus zwei wenigstens auf einer Seite frei endenden, untereinander verbundenen Stützschenkeln bestehen.This object is achieved in the case of a winding for an air-cooled dry transformer or a choke coil, in which the spacer elements distributed over the circumference do not have a full cross-section, but instead consist of two interconnected support legs that end at least on one side.

Die Erfindung beruht demgemäß auf dem Grundgedanken, die Vollprofil-Distanzelemente durch solche zu ersetzen, die kein Vollprofil, sondern ein wenigstens einseitig offenes Stegprofil aufweisen. Derartige Distanzelemente können durch Extrudieren aus Kunststoff hergestellt werden.The invention is accordingly based on the basic idea of replacing the full profile spacer elements with those that do not have a full profile, but rather a web profile that is open at least on one side. Such spacer elements can be produced from plastic by extrusion.

Dabei sind_verschiedene Konfigurationen möglich. Die Stützschenkel können parallel zueinander liegen und im Querschnitt zusammen mit dem Verbindungssteg ein H-odern-Konfiguration bilden. Die oder π -Konfiguration hat den Vorteil, daß bei dem Einlegen Ober- und Unterseite gleich sind. Die π -Konfiguration wieder führt zu einer etwas größeren Festigkeit, da der verbindende Quersteg eine Art Dach bildet.Different configurations are possible. The support legs can lie parallel to one another and, in cross section, form an H or N configuration together with the connecting web. The or π configuration has the advantage that the top and bottom are the same when inserted. The π configuration again leads to a somewhat greater strength, since the connecting crossbar forms a kind of roof.

Es ist auch möglich, die Stützschenkel zu ihren freien Enden hin divergieren zu lassen, wobei sie im Querschnitt gegebenenfalls zusammen mit einem Verbindungs-steg, eine Trapez- oder V-Form bilden. Diese Konfiguration hat den Vorteil, daß die schrägliegenden Stützschenkel eine relativ große Knicklast aufnehmen können. Schließlich ist noch möglich, daß bei parallelen oder im Winkel zueinander stehenden Stützschenkeln diese durch einen Bogen miteinander verbunden sind.It is also possible to have the support legs diverge towards their free ends, the cross-section of which, if necessary together with a connecting web, form a trapezoidal or V-shape. This configuration has the advantage that the inclined support legs can absorb a relatively large buckling load. Finally, it is also possible that with parallel or at an angle to each other support legs are connected to each other by an arc.

Die Distanzelemente können beispielsweise auf einem mit Klebschicht versehenen Hilfsträger aufgebracht sein. Es ist auch möglich, sie an ihren freien Enden oder in anderen Bereichen über eine Spritzhaut oder eine dünne Folie miteinander zu verbinden. Die Folie sollte so dünn oder entsprechend perforiert sein, daß sie auch leicht wieder eingerissen werden kann.The spacer elements can, for example, be applied to an auxiliary carrier provided with an adhesive layer. It is also possible to connect them to one another at their free ends or in other areas via a spray skin or a thin film. The film should be so thin or appropriately perforated that it can easily be torn again.

Weitere Eigenschaften, von denen ein Teil auch in den Unteransprüchen erwähnt ist, werden im folgenden anhand der Beschreibung von Ausführungsbeispielen erläutert. Die zugehörige Zeichnung umfaßt folgende Figuren:

  • Figur 1 zeigt einen Teil einer Wicklung, bei denen zwischen zwei Wicklungslagen Distanzelemente eingebaut sind;
  • Figuren 2 a) - d) zeigen verschiedene Querschnitte von Distanzelementen.
Further properties, some of which are also mentioned in the subclaims, are explained below on the basis of the description of exemplary embodiments. The accompanying drawing includes the following figures:
  • FIG. 1 shows part of a winding in which spacer elements are installed between two winding layers;
  • Figures 2 a) - d) show different cross sections of spacer elements.

Die Teilwicklung, die in der Figur 1 dargestellt ist, ist aus Wicklungsdraht oder aus Folienwicklung hergestellt, wie diese als Stand der Technik bekannt ist. Die zwischen zwei Wicklungslagen 1, 2 in Achsenrichtung (oder im wesentlichen in Achsenrichtung) liegenden, über den Umfang verteilten, stabförmigen Distanzelemente 3 sind relativ dicht angeordnet, jedenfalls in Umfangsrichtung enger und dichter, als es bei den bekannten Vollprofil-Stabelementen üblich ist. Die Distanzelemente 3 sind als ein offenes Profil gestaltet, wobei der Querschnitt einen-Konfiguration hat. Die Konfiguration besteht aus zwei Stützschenkeln 4, 5, die parallel zueinander liegen und mit einem senkrecht dazu liegenden Verbindungssteg 6 miteinander starr verbunden sind. Die Wandstärke der Stützschenkel beträgt etwa 5 - 20 % der Querschnittsbreite bzw. -höhe. Diese Gestalt der Distanzelemente ermöglicht, daß auch der Querschnitt der Distanzelement für den Wärmetransport durch die Kühlungsluft ausgenutzt wird, während gleichzeitig eine relativ dichte Belegung des Umfanges mit Distanzelementen zur Erhöhung der Festigkeit möglich ist. Durch diese Konfiguration kann die Belegung des Querschnittes mit Wicklungsmaterial, sei es Draht, sei es Folie, erhöht werden.The partial winding, which is shown in Figure 1, is made of winding wire or foil winding, as is known as the prior art. The rod-shaped spacer elements 3, which are distributed over the circumference and are located between two winding layers 1, 2 in the axial direction (or essentially in the axial direction), are arranged relatively densely, at least in the circumferential direction, more closely and densely than is customary in the known full-profile rod elements. The spacer elements 3 are designed as an open profile, the cross section having a configuration. The configuration consists of two support legs 4, 5 which are parallel to one another and are rigidly connected to one another with a connecting web 6 lying perpendicular thereto. The wall thickness of the support legs is about 5 - 20% of the cross-sectional width or height. This shape of the spacer elements enables the Cross section of the spacer element is used for the heat transport by the cooling air, while at the same time a relatively dense covering of the circumference with spacer elements is possible to increase the strength. With this configuration, the covering of the cross section with winding material, be it wire or be it foil, can be increased.

Die Distanzelemente können an ihren Füßen bzw. freien Enden 7 mit einer feinen Spritzhaut 8 untereinander verbunden sein, so daß das Einlegen erleichtert wird. Anstelle einer Spritzhaut kann auch eine andere dünne Folie, die vorteilhafterweise leicht einzureißen ist, verwendet werden. Die Distanzelemente sind vorzugsweise aus Kunfststoff im Extrudierverfahren oder aus glasfaserverstärktem Kunststoff hergestellt, wobei die Faservorzugsrichtung in Element-Achsenrichtung liegt.The spacer elements can be connected to one another at their feet or free ends 7 with a fine spray skin 8, so that insertion is facilitated. Instead of a spray skin, another thin film, which is advantageously easy to tear, can be used. The spacer elements are preferably made of plastic in the extrusion process or of glass fiber reinforced plastic, the preferred fiber direction being in the element axis direction.

Andere Möglichkeiten der Querschnittskonfiguration sind in den Figuren 2 a) bis d) dargestellt. Figur 2 a) zeigt eine Querschnittsform ähnlich der in Figur 1. Die Stützschenkel 4, 5 enden in fußartigen Verbreiterungen 9. Im Bereich der Übergänge von Stützschenkel zum Verbindungssteg 6 weisen die Distanzelemente Versteifungen 10 auf. Diese Versteifungen sind im vorliegenden Falle in den Winkeln angebrachte Verdickungen der verwendeten Kunststoffmasse. Die in Figur 2 a) dargestellte Querschnittsform ist daher geeignet, eine größere Belastung aufzunehmen als das Profil der Figur 1.Other cross-sectional configuration options are shown in FIGS. 2 a) to d). FIG. 2 a) shows a cross-sectional shape similar to that in FIG. 1. The support legs 4, 5 end in foot-like widenings 9. In the region of the transitions from the support leg to the connecting web 6, the spacer elements have stiffeners 10. In the present case, these stiffeners are thickened portions of the plastic mass used. The cross-sectional shape shown in FIG. 2 a) is therefore suitable for absorbing a greater load than the profile of FIG. 1.

Figur 2 b) zeigt eine Querschnittsform, bei der die Stützschenkel 4 b, 5 b zu den freien Enden 9 b hin divergieren, wobei die nahe zueinanderliegenden Enden durch einen Verbindungssteg 6 b miteinander verbunden sind. Dadurch ergibt sich im Querschnitt eine Trapezform. Wird der Steg 6 weggelassen und eine entsprechende Neigung der Schenkel 4 b, 5 b gewählt, so kann sich auch eine V-Form ergeben.FIG. 2 b) shows a cross-sectional shape in which the support legs 4 b, 5 b diverge towards the free ends 9 b, the ends which are close to one another being connected to one another by a connecting web 6 b. This results in a trapezoidal shape in cross section. If the web 6 is omitted and a corresponding one Inclination of the legs 4 b, 5 b selected, a V-shape can also result.

Figur 2 c zeigt eine sogenannte H-Konfiguration, bei der die Stützschenkel 4 c, 5 c parallel zueinander liegen und Etwa in der Mitte durch einen Verbindungssteg 6 c verknüpft sind. Diese Konfiguration hat den Vorteil, daß oben und unten bei der Montage vertauscht werden können.Figure 2 c shows a so-called H configuration, in which the support legs 4 c, 5 c are parallel to each other and are connected approximately in the middle by a connecting web 6 c. This configuration has the advantage that the top and bottom can be interchanged during assembly.

Figur 2 d zeigt eine Konfiguration, bei der Stützschenkel 4 d, 5 d parallel zueinander liegen und anstelle durch einen geraden Steg durch einen Bogen 3 d miteinander verbunden sind. Wie bekannt, kann ein Bogen die aufliegenden Kräfte besonders gut nach den Seiten hin ableiten.FIG. 2 d shows a configuration in which the support legs 4 d, 5 d are parallel to one another and are connected to one another by an arch 3 d instead of by a straight web. As is known, an arch can deflect the applied forces particularly well to the sides.

Die Höhe und Länge der Stützschenkel im Verhältnis zu den Verbindungsstegen bzw. dem Bogen ergibt sich aus den nctwendigen Abständen der zu kühlenden Wicklungslagen bzw. aus den dem Fachmann bekannten Wärmeabführungsnotwendigkeiten bei bestimmter elektrischer Wicklungsleistung. Im übrigen lassen sich aus den Figuren 1 und 2 in etwa die Größenverhältnisse der Teile zueinander ablesen.The height and length of the support legs in relation to the connecting webs or the bend results from the necessary distances of the winding layers to be cooled or from the heat dissipation necessities known to the person skilled in the art for a certain electrical winding power. Otherwise, the proportions of the parts relative to one another can be read from FIGS. 1 and 2.

Bei der Montage der Wicklung werden die neuen Distanzelemente eingelegt und angebracht, wie dies bekannt ist. Beispielsweise ist auch möglich, Hilfsdistanzelemente während des Wickelns einzulegen und nach dem Aushärten der Wicklung wieder zu entfernen. Es ist auch möglich, die Distanzelemente auf eine Trägerfolie aufzukleben und in der gewünschten Anordnung innerhalb der Wicklungen anzubringen. Wie bekannt, können die Distanzelemente innerhalb der Oberspannungs-, Unterspannungswicklung eingebracht oder zwischen die Ober- und Unterspannungswicklung eingelegt werden.When assembling the winding, the new spacer elements are inserted and attached, as is known. For example, it is also possible to insert auxiliary spacer elements during the winding and to remove them again after the winding has hardened. It is also possible to glue the spacer elements onto a carrier film and to attach them in the desired arrangement within the windings. As is known, the spacer elements can be introduced within the high-voltage, low-voltage winding or inserted between the high and low-voltage winding.

Claims (8)

1. Wicklung für einen luftgekühlten Trockentransformator oder eine Drosselspule, bei der zirkumferentiale Luftkanäle zwischen wenigstens zwei-Wicklungslagen durch die Achsenrichtung oder schräg dazu liegende, über den Umfang verteilte, stabförmige Distanzelemente offengehalten sind, dadurch gekennzeichnet, daß im Querschnitt die Distanzelemente (3) aus zwei wenigstens auf einer Seite frei endenden, untereinander verbundenen Stützschenkeln (4, 5) bestehen.1. Winding for an air-cooled dry-type transformer or a choke coil, in which circumferential air ducts between at least two winding layers are kept open by the axial direction or diagonally lying, bar-shaped spacer elements distributed over the circumference, characterized in that the spacer elements (3) are made in cross section there are two supporting legs (4, 5) which end freely at least on one side and are interconnected. 2. Wicklung nach Anspruch 1, dadurch gekennzeichnet, daß die Stützschenkel (4, 5; 4 b, 5 b) parallel zueinander liegen und im Querschnitt zusammen mit dem Verbindungssteg eine H- oder n -Konfiguration bilden (Figur 2 a, c).2. Winding according to claim 1, characterized in that the support legs (4, 5; 4 b, 5 b) are parallel to each other and form an H or n configuration in cross section together with the connecting web (Figure 2 a, c). 3. Wicklung nach Anspruch 1, dadurch gekennzeichnet, daß die Stützschenkel (4 b, 5 b) zu den freien Enden (9 b) hin divergieren und im Querschnitt eine Trapez- oder V-Form bilden (Figur 2 b).3. Winding according to claim 1, characterized in that the support legs (4 b, 5 b) diverge towards the free ends (9 b) and form a trapezoidal or V-shaped cross section (Figure 2 b). 4. Wicklung nach Anspruch 1, dadurch gekennzeichnet, daß die Stützschenkel (4 d, 5 d) parallel oder gewinkelt zueinander liegen und durch einen Bogen (3 d) untereinander verbunden sind (Figur 2 d).4. Winding according to claim 1, characterized in that the support legs (4 d, 5 d) are parallel or angled to one another and are connected to one another by an arch (3 d) (Figure 2 d). 5. Wicklung nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß die Distanzelemente im Bereich der Übergänge von Stützschenkel zum Verbindungssteg oder Bogen Versteifungen (10) aufweisen.5. Winding according to claim 1 to 4, characterized in that the spacer elements in the area of the transitions from the support leg to the connecting web or arch stiffeners (10). 6. Wicklung nach Anspruch 1, dadurch gekennzeichnet, daß die freien Enden der Distanzelemente mit fußartigen Verbreiterungen (9) versehen sind.6. Winding according to claim 1, characterized in that the free ends of the spacer elements are provided with foot-like widenings (9). 7. Wicklung nach Anspruch 1, dadurch gekennzeichnet, daß mehrere Distanzelemente an den freien Enden der Verbindungsstege über eine Spritzhaut (8) oder eine dünne Folie miteinander verbunden sind.7. Winding according to claim 1, characterized in that a plurality of spacer elements are connected to one another at the free ends of the connecting webs via a spray skin (8) or a thin film. 8. Wicklung nach Anspruch 1, dadurch gekennzeichnet, daß die Distanzelemente (3) aus glasfaserverstärktem Kunststoff hergestellt sind, wobei die Faservorzugsrichtung in Elementachsenrichtung liegt.8. Winding according to claim 1, characterized in that the spacer elements (3) are made of glass fiber reinforced plastic, the fiber preferred direction being in the element axis direction.
EP82100047A 1981-01-16 1982-01-07 Winding for an air-cooled dry transformer or reactor having spacers in the air channels Expired EP0056580B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82100047T ATE15293T1 (en) 1981-01-16 1982-01-07 WINDING FOR AN AIR-COOLED DRY TRANSFORMER OR FOR A CHOKE COIL WITH SPACERS IN THE AIR DUCT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3101217 1981-01-16
DE3101217A DE3101217C2 (en) 1981-01-16 1981-01-16 Winding for a dry-type transformer with spacer arrangement

Publications (2)

Publication Number Publication Date
EP0056580A1 true EP0056580A1 (en) 1982-07-28
EP0056580B1 EP0056580B1 (en) 1985-08-28

Family

ID=6122737

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EP82100047A Expired EP0056580B1 (en) 1981-01-16 1982-01-07 Winding for an air-cooled dry transformer or reactor having spacers in the air channels

Country Status (4)

Country Link
EP (1) EP0056580B1 (en)
JP (1) JPS57172707A (en)
AT (1) ATE15293T1 (en)
DE (1) DE3101217C2 (en)

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EP0170170A1 (en) * 1984-08-02 1986-02-05 Siemens Aktiengesellschaft Layer winding for transformers
US6822363B2 (en) 1996-05-29 2004-11-23 Abb Ab Electromagnetic device
US6825585B1 (en) 1997-02-03 2004-11-30 Abb Ab End plate
US6828701B1 (en) 1997-02-03 2004-12-07 Asea Brown Boveri Ab Synchronous machine with power and voltage control
EP1715495A2 (en) * 2005-04-21 2006-10-25 TMC Italia S.p.A. Resin-insulated dry transformer
WO2009138095A1 (en) * 2008-05-13 2009-11-19 Abb Technology Ag Dry-type transformer
WO2023001392A1 (en) * 2021-07-19 2023-01-26 Hitachi Energy Switzerland Ag Support structure and transformer including a support structure

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ATE250817T1 (en) 1996-05-29 2003-10-15 Abb Ab CONDUCTOR FOR HIGH VOLTAGE WINDINGS AND ROTATING ELECTRICAL MACHINE HAVING SUCH A CONDUCTOR
SE510192C2 (en) 1996-05-29 1999-04-26 Asea Brown Boveri Procedure and switching arrangements to reduce problems with three-tier currents that may occur in alternator and motor operation of AC machines connected to three-phase distribution or transmission networks
EP1016185A1 (en) 1996-05-29 2000-07-05 Abb Ab Insulated conductor for high-voltage windings and a method of manufacturing the same
SE510422C2 (en) 1996-11-04 1999-05-25 Asea Brown Boveri Magnetic sheet metal core for electric machines
SE508543C2 (en) 1997-02-03 1998-10-12 Asea Brown Boveri Coiling
SE508544C2 (en) 1997-02-03 1998-10-12 Asea Brown Boveri Method and apparatus for mounting a stator winding consisting of a cable.
SE9704427D0 (en) 1997-02-03 1997-11-28 Asea Brown Boveri Fastening device for electric rotary machines
SE9704423D0 (en) 1997-02-03 1997-11-28 Asea Brown Boveri Rotary electric machine with flushing support
SE9704421D0 (en) 1997-02-03 1997-11-28 Asea Brown Boveri Series compensation of electric alternator
AU9362998A (en) 1997-11-28 1999-06-16 Asea Brown Boveri Ab Method and device for controlling the magnetic flux with an auxiliary winding ina rotating high voltage electric alternating current machine
GB2331867A (en) 1997-11-28 1999-06-02 Asea Brown Boveri Power cable termination
DE10246363B4 (en) * 2002-09-27 2006-04-13 August Krempel Söhne Gmbh & Co. Kg Plastic sheet of pressed prepreg material and manufacturing process
CN101728078A (en) * 2008-10-30 2010-06-09 张家港市中亚特种变压器制造有限公司 Coil stay used on dry-type transformer
CN103779043B (en) * 2012-10-25 2017-09-26 台达电子企业管理（上海）有限公司 Great-power electromagnetic component
CN103515054A (en) * 2013-10-18 2014-01-15 安徽华正电气有限公司 Large-air-passage radiating dry type air reactor
CN104752038A (en) * 2015-04-22 2015-07-01 攀钢集团工程技术有限公司 Inner stay, power transformer and method for reducing coil deformation caused by current sudden change
DE102017220781B4 (en) * 2017-11-21 2019-09-26 Siemens Aktiengesellschaft Method for producing spacers for a winding unit and winding unit

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EP0170170A1 (en) * 1984-08-02 1986-02-05 Siemens Aktiengesellschaft Layer winding for transformers
US6822363B2 (en) 1996-05-29 2004-11-23 Abb Ab Electromagnetic device
US6825585B1 (en) 1997-02-03 2004-11-30 Abb Ab End plate
US6828701B1 (en) 1997-02-03 2004-12-07 Asea Brown Boveri Ab Synchronous machine with power and voltage control
EP1715495A2 (en) * 2005-04-21 2006-10-25 TMC Italia S.p.A. Resin-insulated dry transformer
EP1715495A3 (en) * 2005-04-21 2011-09-28 TMC Italia S.p.A. Resin-insulated dry transformer
WO2009138095A1 (en) * 2008-05-13 2009-11-19 Abb Technology Ag Dry-type transformer
US8310330B2 (en) 2008-05-13 2012-11-13 Abb Technology Ag Dry-type transformer
WO2023001392A1 (en) * 2021-07-19 2023-01-26 Hitachi Energy Switzerland Ag Support structure and transformer including a support structure

Also Published As

Publication number Publication date
DE3101217C2 (en) 1984-08-23
EP0056580B1 (en) 1985-08-28
ATE15293T1 (en) 1985-09-15
DE3101217A1 (en) 1982-08-05
JPS57172707A (en) 1982-10-23

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