EP0216249B1 - High-tension winding consisting of axially superposed disc coil pairs - Google Patents

High-tension winding consisting of axially superposed disc coil pairs Download PDF

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Publication number
EP0216249B1
EP0216249B1 EP86112505A EP86112505A EP0216249B1 EP 0216249 B1 EP0216249 B1 EP 0216249B1 EP 86112505 A EP86112505 A EP 86112505A EP 86112505 A EP86112505 A EP 86112505A EP 0216249 B1 EP0216249 B1 EP 0216249B1
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Prior art keywords
disc
conductors
coil
conductor
disc coil
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EP86112505A
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German (de)
French (fr)
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EP0216249A1 (en
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Walter Dr. Dipl.-Ing. Müller
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Siemens AG
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Siemens AG
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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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2871—Pancake coils

Definitions

  • the invention relates to high-voltage windings from axially one above the other, in pairs electrically connected to disc coil pairs disc coils_from two spatially parallel conductors, through which the same current flows through each other in the same direction by electrical series connection in each of the disc coil pairs, whereby within the electrical series connection of each disc coil pair on the first conductor The first disc coil is followed by the first conductor in the second disc coil and then via a back connection the second conductor in the first disc coil and finally the second conductor in the second disc coil.
  • Such a winding arrangement is known from DE-C 975 856.
  • the conductors When the individual conductors are connected within the disc coils, the conductors require a relatively strong paper insulation because this must be applied for a voltage that is equal to the product of the winding voltage and the number of turns contained in three disc coils. With increasing loss evaluation, it becomes necessary to subdivide the conductor cross sections into partial conductors in order to reduce the eddy current losses in the stray field. At the same time, if possible, the filling factor of the winding should be increased in order to achieve a larger overall cross section and thus a reduction in the 1 2 R losses with constant external dimensions of the winding.
  • the invention is therefore based on the object of providing a high-voltage winding of the type mentioned at the outset, which, even with very large cross sections of the conductors designed for very large currents, has a longitudinal capacitance which is also sufficiently high for loading with surge voltages.
  • the conductor with the higher potential within a disk coil can lie axially on the same side in the disk coils of the same disk coil pair and on axially opposite sides in the disk coils of adjacent disk coil pairs.
  • the individual conductors in the individual bundle conductors are not twisted and the disc coils combined to form a pair of disc coils lie directly against one another, without a cooling and insulating channel, the individual conductors of the bundle conductors being crossed out in relation to one another between the disc coils of the same pair of disc coils.
  • the individual conductors within the bundle conductors are additionally crossed out in cooling and insulating channels between adjacent pairs of disk coils.
  • each of the bundle conductors is constructed from a single stack of wires lying flat on top of one another with a rectangular cross-section, and that the radial dimension of the bundle conductor is greater than its axial dimension within the disc coils.
  • the maximum potential difference between axially adjacent turns both within the individual disk coils and with respect to the adjacent turns in adjacent disk coils is equal to the product of the winding voltage and the number of turns per disk coil. In many applications, it is sufficient to restrict the arrangement of the interwoven disk coil pairs to the high-voltage input region of the winding.
  • High-voltage coils constructed in accordance with the invention are very advantageous because the radial bundle dimensions can be of practically any size, so that the longitudinal capacitance determined thereby is also sufficiently large, and because the maximum voltage stress in the winding assembly is only the product of the winding tension and the number of turns in a single disk coil occurs so that radial channels are not required for electrical reasons.
  • a laminated iron core (not shown) and an undervoltage winding of any type, also not shown, and a high-voltage winding consisting of pairs of disk coils 101 to 106 are arranged concentrically with respect to one another from the inside outward about an axis 100 of a transformer leg.
  • the disk coil pairs 101 to 106 represent the high-voltage input coils with turns 1 to 96, through which the load current flows in the order of the numbers entered.
  • Each of the disk coil pairs 101 to 106 consists of two disk coils, each with eight turns of a conductor 107 in the exemplary embodiment.
  • the dimension of the conductor 107 is significantly larger in the radial direction than in the axial direction.
  • the conductor 107 is constructed as a bundle conductor from ten, preferably enamel-insulated, individual conductors 108 which have a rectangular cross section and lie flat on top of one another.
  • the individual conductors 108 are held together in a bundle by an insulating skin 109 made of paper or another insulating material, the thickness of the insulating skin 109 being determined by the product of the winding tension and the number of turns in a disk coil.
  • Each of the disk coils is wound from two spatially parallel, axially adjacent conductors 107, each of which approximately forms a spiral with four turns in the exemplary embodiment, i.e. each of the disc coils consists of two identical spirals lying axially against one another, the spirals of the same disc coil having the same winding spirals and spirals of adjacent disc coils having opposite winding directions.
  • Two adjacent disc coils are connected together to form one of the disc coil pairs 101 to 106.
  • the spirals formed by the conductors 107 are electrically connected in series so that the windings flow through the current in the order of the numbers entered.
  • the first spiral of the first disk coil is first from the outside inwards as a result of this series connection, then the first spiral of the second disk coil from the inside to the outside, and then the second coil of the first disk coil is connected again from the outside inwards via a reverse connection and finally the current flows through the second spiral of the second disc coil from the inside to the outside.
  • each of the individual conductors 108 are crossed out in the usual way in the back connection between the two disc coils forming a pair of disc coils 101 to 106. If necessary, further outcrossings are provided in the connections of adjacent disk coil pairs 101 to 106.
  • the spiral lying axially in the direction of a high-voltage connection 110 has the higher voltage potential compared to the other spiral of the same disc coil.
  • the reverse is true.
  • the conditions in the disk coil pair 103 are again the same as in the disk coil pair 101.
  • there is a maximum of a voltage between two axially adjacent turns corresponding to the product of the winding voltage and the number of turns of a disk coil in the exemplary embodiment thus a maximum of eight times the winding voltage.
  • the thickness of the insulating skin 109 is also small.
  • the large-area, radially directed broad sides of the conductors 107 lie next to one another with a small spacing and thus contribute significantly to the formation of a good longitudinal capacitance.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Details Of Television Scanning (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

1. High voltage winding consisting of disc coils, which are arranged axially one upon the other, are interconnected in pairs, electrically, to form disc coil pairs (101 to 106) and consist of, in each case, two spatially parallel conductors (107), through which the same current flows successively in the same direction by means of an electrical series connection in each of the disc coil pairs (101 to 106), in which case in the series connection within each disc coil pair (101 to 106) the first conductor in the first disc oil is succeeded by the first conductor in the second disc coil and, by way of return connection, then by the second conductor in the first disc coil and finally by the second conductor in the second disc coil, characterized - in that the spatially parellel conductors (107), which are wound up in each case in the same disc coil, lie directly axially together, - in that each of these conductors (107) by itself is a bundle conductor and - in that the sequence, fixed by the coil connections on the inner and on the outer periphery, of the axially adjacent conductors is such that the radially adjacent conductors merely have one voltage per turn and axially adjacent conductors merely have half the voltage of a complete coil pair as differential voltage.

Description

Die Erfindung betrifft Hochspannungswicklungen aus axial übereinander angeordneten, paarweise elektrisch zu Scheibenspulenpaaren zusammengeschalteten Scheibenspulen_aus jeweils zwei räumlich parallelen Leitern, die durch elektrische Reihenschaltung in jedem der Scheibenspulenpaare nacheinander gleichsinnig von demselben Strom durchflossen sind, wobei innerhalb der elektrischen Reihenschaltung jedes Scheibenspulenpaares auf den ersten Leiter in der ersten Scheibenspule der erste Leiter in der zweiten Scheibenspule und über eine Rückverbindung dann der zweite Leiter in der ersten Scheibenspule und schließlich der zweite Leiter in der zweiten Scheibenspule folgt. Eine derartige Wicklungsanordnung ist durch die DE-C 975 856 bekannt.The invention relates to high-voltage windings from axially one above the other, in pairs electrically connected to disc coil pairs disc coils_from two spatially parallel conductors, through which the same current flows through each other in the same direction by electrical series connection in each of the disc coil pairs, whereby within the electrical series connection of each disc coil pair on the first conductor The first disc coil is followed by the first conductor in the second disc coil and then via a back connection the second conductor in the first disc coil and finally the second conductor in the second disc coil. Such a winding arrangement is known from DE-C 975 856.

Bei der Verschaltung der einzelnen Leiter innerhalb der Scheibenspulen ist für die Leiter eine verhältnismäßig starke Papierisolation erforderlich, weil diese für eine Spannung anzulegen ist, die gleich dem Produkt aus der Windungsspannung und der Anzahl der in drei Scheibenspulen enthaltenen Windungen ist. Bei zunehmender Verlustbewertung wird es notwendig, die Leiterquerschnitte in Teilleiter zu unterteilen, um die Wirbelstromverluste im Streufeld zu reduzieren. Gleichzeitig ist nach Möglichkeit der Füllfaktor der Wicklung zu vergrößern, um einen größeren Gesamtquerschnitt und damit eine Absenkung der 12R-Verluste bei konstanten Außenabmessungen der Wicklung zu erreichen.When the individual conductors are connected within the disc coils, the conductors require a relatively strong paper insulation because this must be applied for a voltage that is equal to the product of the winding voltage and the number of turns contained in three disc coils. With increasing loss evaluation, it becomes necessary to subdivide the conductor cross sections into partial conductors in order to reduce the eddy current losses in the stray field. At the same time, if possible, the filling factor of the winding should be increased in order to achieve a larger overall cross section and thus a reduction in the 1 2 R losses with constant external dimensions of the winding.

Bei der Verwendung von bekannten Bündelleitern, beispielsweise der bekannten Drilleiter, in einer Hochspannungswicklung der eingangs genannten Art, in der die räumlich parallelen Leiter innerhalb der einzelnen Scheibenspulen radial übereinander liegen, ergeben sich aber Nachteile. So ist wegen der, verglichen mit Einzelleitern, erheblich vergrößerten radialen Bündelabmessung nur eine kleinere Spulenwindungszahl und damit eine verringerte Längskapazität je Doppelspule erreichbar. Die verringerte Längskapazität hat eine höhere Teilspannung der Belastung der Hochspannungswicklung bei Stoßspannung zur Folge. Die entscheidenden Bemessungsgrößen für Radialkanäle zwischen den Spulen steigen dadurch entsprechend an, so daß die Ausführbarkeit der Hochspannungswicklung bei weiter wachsenden Leiterquerschnitten generell in Frage gestellt ist.However, there are disadvantages when using known bundle conductors, for example the known stranded conductors, in a high-voltage winding of the type mentioned at the beginning, in which the spatially parallel conductors lie radially one above the other within the individual disk coils. Because of the considerably larger radial bundle dimensions compared to single conductors, only a smaller number of coil turns and thus a reduced longitudinal capacity per double coil can be achieved. The reduced longitudinal capacitance results in a higher partial voltage of the high-voltage winding under surge voltage. The decisive design parameters for radial channels between the coils rise accordingly, so that the feasibility of the high-voltage winding is generally questioned when the conductor cross-sections continue to grow.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Hochspannungswicklung der eingangs genannten Art zu schaffen, die auch bei für sehr große Stromstärken ausgelegte sehr große Querschnitte der Leiter eine auch für die Belastung mit Stoßspannungen ausreichend hohe Längskapazität aufweist.The invention is therefore based on the object of providing a high-voltage winding of the type mentioned at the outset, which, even with very large cross sections of the conductors designed for very large currents, has a longitudinal capacitance which is also sufficiently high for loading with surge voltages.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die jeweils in derselben Scheibenspule aufgewickelten, räumlich parallelen Leiter unmittelbar axial aneinander liegen,

  • daß jeder dieser Leiter für sich ein Bündelleiter ist und
  • daß die durch die Spulenverbindungen am Innen-und am Außenumfang festgelegte Reihenfolge der axial benachbarten Leiter so getroffen ist, daß die radial benachbarten Leiter lediglich eine Windungsspannung und axial benachbarte Leiter lediglich die halbe Spannung eines kompletten Spulenpaares als Differenzspannung aufweisen.
According to the invention, this object is achieved in that the spatially parallel conductors wound in each case in the same disk coil lie directly axially against one another,
  • that each of these leaders is a bundle leader and
  • that the order of the axially adjacent conductors defined by the coil connections on the inner and outer circumference is such that the radially adjacent conductors have only one winding voltage and axially adjacent conductors have only half the voltage of a complete pair of coils as differential voltage.

Dabei kann von den beiden räumlich parallelen Leitern der innerhalb einer Scheibenspule jeweils das höhere Potential aufweisende Leiter in den Scheibenspulen desselben Scheibenspulenpaares jeweils axial auf derselben Seite und in den Scheibenspulen von einander benachbarten Scheibenspulenpaaren jeweils auf axial entgegengesetzten Seiten liegen.In this case, of the two spatially parallel conductors, the conductor with the higher potential within a disk coil can lie axially on the same side in the disk coils of the same disk coil pair and on axially opposite sides in the disk coils of adjacent disk coil pairs.

Nach zweckmäßigen Weiterbildungen der Erfindung sind die Einzelleiter in den einzelnen Bündelleitern unverdrillt und liegen die zu einem Scheibenspulenpaar zusammengefaßten Scheibenspulen unter Verzicht auf einen Kühl- und Isolierkanal unmittelbar aneinander, wobei die Einzelleiter der Bündelleiter innerhalb der Rückverbindung jeweils zwischen den Scheibenspulen desselben Scheibenspulenpaares gegeneinander ausgekreuzt sind. Dabei sind zur weiteren Vergleichmäßigung der Verkettung der Einzelleiter mit dem Magnetfeld die Einzelleiter innerhalb der Bündelleiter zusätzlich in Kühl- und Isolierkanälen zwischen benachbarten Scheibenspulenpaaren gegeneinander ausgekreuzt.According to expedient developments of the invention, the individual conductors in the individual bundle conductors are not twisted and the disc coils combined to form a pair of disc coils lie directly against one another, without a cooling and insulating channel, the individual conductors of the bundle conductors being crossed out in relation to one another between the disc coils of the same pair of disc coils. To further even out the chaining of the individual conductors with the magnetic field, the individual conductors within the bundle conductors are additionally crossed out in cooling and insulating channels between adjacent pairs of disk coils.

Vorteilhafte Ausgestaltungen der Erfindung bestehen darin, daß jeder der Bündelleiter aus einem einzigen Stapel von flach aufeinander liegenden, im Querschnitt rechteckigen Drähten aufgebaut ist und daß innerhalb der Scheibenspulen die radiale Abmessung des Bündelleiters größer ist als seine axiale Abmessung. Dabei ist zur Minimierung des Isolieraufwandes der maximale Potentialunterschied zwischen axial benachbarten Windungen sowohl innerhalb der einzelnen Scheibenspulen als auch gegenüber der benachbarten Windungen in benachbarten Scheibenspulen gleich dem Produkt aus der Windungsspannung und der Windungszahl je Scheibenspule. In vielen Anwendungsfällen ist es ausreichend, die Anordnung der ineinander gewickelten Scheibenspulenpaare auf das hochspannungsseitige Eingangsgebiet der Wicklung zu beschränken.Advantageous embodiments of the invention consist in the fact that each of the bundle conductors is constructed from a single stack of wires lying flat on top of one another with a rectangular cross-section, and that the radial dimension of the bundle conductor is greater than its axial dimension within the disc coils. To minimize the amount of insulation required, the maximum potential difference between axially adjacent turns both within the individual disk coils and with respect to the adjacent turns in adjacent disk coils is equal to the product of the winding voltage and the number of turns per disk coil. In many applications, it is sufficient to restrict the arrangement of the interwoven disk coil pairs to the high-voltage input region of the winding.

Erfindungsgemäß aufgebaute Hochspannungsspulen sind sehr vorteilhaft, weil die radialen Bündelabmessungen praktisch beliebig groß ausführbar sind, so daß die hierdurch bestimmte Längskapazität ebenfalls ausreichend groß ist, und weil als maximale Spannungsbeanspruchung im Wicklungsverband nur das Produkt aus der Windungsspannung und der Zahl der Windungen in einer einzigen Scheibenspule auftritt, so daß Radialkanäle aus elektrischen Gründen nicht erforderlich sind.High-voltage coils constructed in accordance with the invention are very advantageous because the radial bundle dimensions can be of practically any size, so that the longitudinal capacitance determined thereby is also sufficiently large, and because the maximum voltage stress in the winding assembly is only the product of the winding tension and the number of turns in a single disk coil occurs so that radial channels are not required for electrical reasons.

Ein Ausführungsbeispiel der Erfindung wird anhand einer Zeichnung näher erläutert. Im einzelnen zeigt dabei:

  • Figur 1 einen Querschnitt durch die hochspannungsseitigen Eingangsspulen einer erfindungsgemäßen Hochspannungswicklung und
  • Figur 2 den Querschnitt durch ein Leiterbündel aus einem Stapel von flach liegenden Einzelleitern mit rechteckigem Querschnitt.
An embodiment of the invention is explained in more detail with reference to a drawing. The individual shows:
  • 1 shows a cross section through the high-voltage input coils of a high-voltage winding according to the invention and
  • Figure 2 shows the cross section through a bundle of conductors from a stack of flat individual conductors with a rectangular cross-section.

Um eine Achse 100 eines Transformatorschenkels sind konzentrisch zueinander von innen nach außen ein nicht dargestellter lamellierter Eisenkern sowie eine ebenfalls nicht dargestellte Unterspannungswicklung beliebiger Bauart und als Oberspannungswicklung eine Hochspannungswicklung aus Scheibenspulenpaaren 101 bis 106 angeordnet. Dabei stellen die Scheibenspulenpaare 101 bis 106 die hochspannungsseitigen Eingangsspulen mit Windungen 1 bis 96 dar, die in der Reihenfolge der eingetragenen Ziffern vom Laststrom durchflossen sind.A laminated iron core (not shown) and an undervoltage winding of any type, also not shown, and a high-voltage winding consisting of pairs of disk coils 101 to 106 are arranged concentrically with respect to one another from the inside outward about an axis 100 of a transformer leg. The disk coil pairs 101 to 106 represent the high-voltage input coils with turns 1 to 96, through which the load current flows in the order of the numbers entered.

Jedes der Scheibenspulenpaare 101 bis 106 besteht aus zwei Scheibenspulen mit beim Ausführungsbeispiel je acht Windungen eines Leiters 107. Die Abmessung des Leiters 107 ist in radialer Richtung deutlich größer als in axialer Richtung.Each of the disk coil pairs 101 to 106 consists of two disk coils, each with eight turns of a conductor 107 in the exemplary embodiment. The dimension of the conductor 107 is significantly larger in the radial direction than in the axial direction.

Der Leiter 107 ist als Bündelleiter aus zehn, vorzugsweise lackisolierten, Einzelleitern 108 aufgebaut, die rechteckigen Querschnitt haben und flach aufeinander liegen. Die Einzelleiter 108 werden durch eine lsolierhaut 109 aus Papier oder einem anderen Isolierwerkstoff zu einem Bündel zusammengehalten, wobei die Stärke der lsolierhaut 109 durch das Produkt aus der Windungsspannung und der Anzahl der Windungen in einer Scheibenspule bestimmt ist.The conductor 107 is constructed as a bundle conductor from ten, preferably enamel-insulated, individual conductors 108 which have a rectangular cross section and lie flat on top of one another. The individual conductors 108 are held together in a bundle by an insulating skin 109 made of paper or another insulating material, the thickness of the insulating skin 109 being determined by the product of the winding tension and the number of turns in a disk coil.

Jede der Scheibenspulen ist aus zwei räumlich parallelen, axial nebeneinander liegenden Leitern 107 gewickelt, von denen im Ausführungsbeispiel jeder angenähert eine Spirale mit vier Windungen bildet, d.h. jede der Scheibenspulen besteht aus zwei gleichen axial aneinander liegenden Spiralen, wobei die Spiralen derselben Scheibenspule denselben und Spiralen benachbarter Scheibenspulen einander entgegengesetzten Wickelsinn aufweisen.Each of the disk coils is wound from two spatially parallel, axially adjacent conductors 107, each of which approximately forms a spiral with four turns in the exemplary embodiment, i.e. each of the disc coils consists of two identical spirals lying axially against one another, the spirals of the same disc coil having the same winding spirals and spirals of adjacent disc coils having opposite winding directions.

Je zwei einander benachbarte Scheibenspulen sind zu einem der Scheibenspulenpaare 101 bis 106 zusammengeschaltet. Dabei sind die von den Leitern 107 gebildeten Spiralen elektrisch so in Reihe geschaltet, daß die Windungen in der Reihenfolge der eingetragenen Zahlen vom Strom durchflossen sind. Innerhalb jeden Scheibenspulenpaares 101 bis 106 wird dabei infolge dieser Reihenschaltung zunächst die erste Spirale der ersten Scheibenspule von außen nach innen, dann die erste Spirale der zweiten Scheibenspule von innen nach außen, sodann über eine Rückverbindung die zweite Spirale der ersten Scheibenspule wieder von außen nach innen und schließlich die zweite Spirale der zweiten Scheibenspule von innen nach außen vom Strom durchflossen.Two adjacent disc coils are connected together to form one of the disc coil pairs 101 to 106. The spirals formed by the conductors 107 are electrically connected in series so that the windings flow through the current in the order of the numbers entered. Within each pair of disk coils 101 to 106, the first spiral of the first disk coil is first from the outside inwards as a result of this series connection, then the first spiral of the second disk coil from the inside to the outside, and then the second coil of the first disk coil is connected again from the outside inwards via a reverse connection and finally the current flows through the second spiral of the second disc coil from the inside to the outside.

Zur Erzielung gleich starker Verkettungen jedes der Einzelleiter 108 mit dem Magnetfluß sind diese jeweils in der Rückverbindung zwischen den beiden ein Scheibenspulenpaar 101 bis 106 bildenden Scheibenspulen untereinander in üblicher Art und Weise ausgekreuzt. Weitere Auskreuzungen sind erforderlichenfalls in den Verbindungen von einander benachbarten Scheibenspulenpaaren 101 bis 106 vorgesehen.To achieve the same degree of interlinking of each of the individual conductors 108 with the magnetic flux, these are crossed out in the usual way in the back connection between the two disc coils forming a pair of disc coils 101 to 106. If necessary, further outcrossings are provided in the connections of adjacent disk coil pairs 101 to 106.

In den beiden Scheibenspulen des Scheibenspulenpaares 101 hat jeweils die axial in Richtung auf einen Hochspannungsanschluß 110 liegende Spirale das höhere Spannungspotential, verglichen mit der jeweils anderen Spirale derselben Scheibenspule. In den beiden Scheibenspulen des Scheibenspulenpaares 102 ist es gerade umgekehrt. Im Scheibenspulenpaar 103 sind die Verhältnisse wieder wie im Scheibenspulenpaar 101. Dadurch liegt zwischen zwei axial benachbarten Windungen maximal eine Spannung entsprechend dem Produkt aus der Windungsspannung und der Zahl der Windungen einer Scheibenspule, im Ausführungsbeispiel also maximal die achtfache Windungsspannung. Infolge der verhältnismäßig niedrigen maximalen Spannungsbeanspruchung ist die Stärke der Isolierhaut 109 ebenfalls klein. Dadurch liegen die großflächigen, radial gerichteten Breitseiten der Leiter 107 mit geringem Abstand nebeneinander und tragen so wesentlich zur Bildung einer guten Längskapazität bei.In the two disc coils of the disc coil pair 101, the spiral lying axially in the direction of a high-voltage connection 110 has the higher voltage potential compared to the other spiral of the same disc coil. In the two disc coils of the pair of disc coils 102, the reverse is true. The conditions in the disk coil pair 103 are again the same as in the disk coil pair 101. As a result, there is a maximum of a voltage between two axially adjacent turns corresponding to the product of the winding voltage and the number of turns of a disk coil, in the exemplary embodiment thus a maximum of eight times the winding voltage. As a result of the relatively low maximum stress, the thickness of the insulating skin 109 is also small. As a result, the large-area, radially directed broad sides of the conductors 107 lie next to one another with a small spacing and thus contribute significantly to the formation of a good longitudinal capacitance.

Claims (10)

1. High voltage winding consisting of disc coils, which are arranged axially one upon the other, are interconnected in pairs, electrically, to form disc coil pairs (101 to 106) and consist of, in each case, two spatially parallel conductors (107), through which the same current flows successively in the same direction by means of an electrical series connection in each of the disc coil pairs (101 to 106), in which case in the series connection within each disc coil pair (101 to 106) the first conductor in the first disc coil is succeeded by the first conductor in the second disc coil and, by way of a return connection, then by the second conductor in the first disc coil and finally by the second conductor in the second disc coil, characterised
- in that the spatially parallel conductors (107), which are wound up in each case in the same disc coil, lie directly axially together,
- in that each of these conductors (107) by itself is a bundle conductor and
- in that the sequence, fixed by the coil connections on the inner and on the outer periphery, of the axially adjacent conductors is such that the radially adjacent conductors merely have one voltage per turn and axially adjacent conductors merely have half the voltage of a complete coil pair as differential voltage.
2. High voltage winding according to claim 1, characterised in that, of the two spatially parallel conductors (107), the conductor (107) which has the higher potential within a disc coil in each case lies axially on the same side in the disc coils of the same disc coil pair (101 to 106) and on axially opposite sides in the disc coils of adjacent disc coil pairs (101 to 106).
3. High voltage winding according to claim 1 or 2, characterised in that individual conductors (108) are not twisted in the individual bundle conductors.
4. High voltage winding according to one of the claims 1 to 3, characterised in that at least the disc coils which are combined to form a disc coil pair (101 to 106) lie directly together dispensing with a cooling and insulating duct.
5. High voltage winding according to one of the claims 1 to 4, characterised in that the individual conductors of the bundle conductors are cross- connected in respect of each other within the return connection in connection in each case between the disc coils of the same disc coil pair (101 to 106).
6. High voltage winding according to one of the claims 1 to 5, characterised in that the individual conductors within the bundle conductors are cross- connected in respect of each other in addition in cooling and insulating ducts between adjacent disc coil pairs (101 to 106).
7. High voltage winding according to one of the claims 1 to 6, characterised in that each of the bundle conductors is built up out of a single stack of wires, which lie one on top of the other in a planar manner and are rectangular in cross section, as individual conductors (108).
8. High voltage winding according to one of the claims 1 to 7, characterised in that within the disc coils the radial dimension of the bundle conductor is greater than the latter's axial dimension.
9. High voltage winding according to one of the claims 1 to 8, characterised in that the maximum potential difference between axially adjacent windings both inside the individual disc coils and in respect of the adjacent windings in adjacent disc coils is equal to the product of the voltage per turn and the number of turns of each disc coil.
10. High voltage winding according to one of the claims 1 to 9, characterised in that the arrangement of the disc coil pairs (101 to 106) wound in each other is restricted to the high-voltage side input area of a high-voltage main winding.
EP86112505A 1985-09-23 1986-09-10 High-tension winding consisting of axially superposed disc coil pairs Expired EP0216249B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86112505T ATE42860T1 (en) 1985-09-23 1986-09-10 HIGH VOLTAGE WINDING OF PAIRS OF DISC COILS ARRANGED AXIALLY ABOVE OTHER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3533919 1985-09-23
DE3533919 1985-09-23

Publications (2)

Publication Number Publication Date
EP0216249A1 EP0216249A1 (en) 1987-04-01
EP0216249B1 true EP0216249B1 (en) 1989-05-03

Family

ID=6281723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112505A Expired EP0216249B1 (en) 1985-09-23 1986-09-10 High-tension winding consisting of axially superposed disc coil pairs

Country Status (4)

Country Link
EP (1) EP0216249B1 (en)
AT (1) ATE42860T1 (en)
BR (1) BR8604515A (en)
DE (1) DE3663209D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8802882A (en) * 1988-11-22 1990-06-18 Smit Transformatoren Bv TRANSFORMER WINDING EXPLODED WITH AXIAL CHANNELS DISC WINDING.
GB2243248B (en) * 1990-03-30 1994-10-26 Honda Motor Co Ltd Welding transformer and method of manufacturing same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975856C (en) * 1945-01-04 1962-10-31 English Electric Co Ltd Winding arrangement with disc windings, especially for transformers
CH395310A (en) * 1961-08-11 1965-07-15 Smit & Willem & Co Nv Disc coil for a transformer or choke coil winding for large currents
DE2429441C3 (en) * 1974-06-19 1979-05-03 Transformatoren Union Ag, 7000 Stuttgart Winding for transformers and chokes

Also Published As

Publication number Publication date
ATE42860T1 (en) 1989-05-15
EP0216249A1 (en) 1987-04-01
BR8604515A (en) 1987-05-19
DE3663209D1 (en) 1989-06-08

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