EP2866235A1 - High voltage transformer - Google Patents

High voltage transformer Download PDF

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Publication number
EP2866235A1
EP2866235A1 EP20130005035 EP13005035A EP2866235A1 EP 2866235 A1 EP2866235 A1 EP 2866235A1 EP 20130005035 EP20130005035 EP 20130005035 EP 13005035 A EP13005035 A EP 13005035A EP 2866235 A1 EP2866235 A1 EP 2866235A1
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EP
European Patent Office
Prior art keywords
barrier
voltage transformer
coil
transformer according
barrier structure
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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.)
Granted
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EP20130005035
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German (de)
French (fr)
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EP2866235B1 (en
Inventor
Benjamin Weber
Jens Tepper
Tobias Asshauer
Udo Chudobba
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ABB Schweiz AG
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ABB Technology AG
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Publication date
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Priority to EP13005035.4A priority Critical patent/EP2866235B1/en
Priority to PL13005035T priority patent/PL2866235T3/en
Priority to CA2866054A priority patent/CA2866054C/en
Priority to US14/515,102 priority patent/US9478350B2/en
Priority to CN201410564835.XA priority patent/CN104575988B/en
Publication of EP2866235A1 publication Critical patent/EP2866235A1/en
Application granted granted Critical
Publication of EP2866235B1 publication Critical patent/EP2866235B1/en
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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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/06—Insulation of windings
    • 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
    • H01F27/327—Encapsulating or impregnating
    • H01F2027/328—Dry-type transformer with encapsulated foil winding, e.g. windings coaxially arranged on core legs with spacers for cooling and with three phases

Definitions

  • the invention relates to a high voltage transformer, comprising a transformer core with at least two axially parallel core loops, on each of which a hollow cylindrical coil is arranged, each with at least one electrical winding
  • intermediate barriers between adjacent coils are essentially plates made of an insulating material, which are arranged between the coils and which allow by a correspondingly extended discharge path along the surface thereof to arrange the respective coils with a correspondingly smaller distance from each other.
  • a high-voltage transformer of the aforementioned type This is characterized in that the respective surface regions of the coils have a respective radially externally integrated electrically insulating barrier structure at least in subregions of mutually facing surfaces adjacent coils arranged.
  • a respective barrier structure typically includes the entire axial length of a coil, but may also be somewhat shortened or lengthened as needed.
  • different opposite surface areas result.
  • two barrier structures are provided, for example for the middle coil, arranged radially on the outside, wherein a barrier structure arranged radially on the outside is required for each of the two outer coils.
  • each barrier In the case of a triangular transformer core, each barrier would have two barrier structures offset by 60 ° from each other, which should be realized by an overarching barrier structure.
  • each of the two coils in the region to the adjacent coil would be provided with a barrier structure.
  • the barrier structures are designed such that the voltage difference occurring between the electrical windings of the adjacent coils during operation is held without an additional barrier wall arranged between the coils.
  • An integrated barrier structure advantageously reduces the field strength loading prevailing between the coils in such a way that no further intermediate barrier is necessary any more.
  • a barrier structure can be thought of as a lens-like attachment to the radially outer surface of a coil.
  • a barrier structure has already been integrated into the coil during the production process, similar to the cooling channels known to those skilled in the art, which, however, are not arranged on the surface of the coil but between radially adjacent coil segments.
  • the mechanical stability of a respective transformer is advantageously increased because a mechanically labile construction of one or more barrier plates arranged between the coils has been dispensed with.
  • all the connections of the coils can be guided without geometric impairments.
  • the barrier structures comprise axially extending strips which carry a barrier wall arranged radially above them.
  • a barrier wall arranged radially above them.
  • Such a concept is characterized by a simple manufacturing method and a high mechanical stability.
  • a sufficiently stable material for the strips for example, offers a glass fiber composite material.
  • the barrier wall is at least partially wound from a band-like material.
  • a belt-like material such as a resin impregnated glass fiber reinforced fiber roving, which is heated after completion of the winding process of a coil and thereafter forms a hardened structure, is known in winding coils of high voltage transformers for isolation and stabilization purposes.
  • it is therefore provided in a variant to fix the radially outer barrier structure with such a material or even to wrap it at least partially.
  • this achieves both high mechanical strength and good insulation capability.
  • the barrier wall at least partially consists of a prefabricated cylindrical element, for example an insulating half-shell.
  • a prefabricated cylindrical element for example an insulating half-shell.
  • Such cylinder or shell elements can be easily integrated during the winding process of a coil and have proven themselves, for example, in the integration of cooling channels.
  • a plurality of radially adjacent layers of strips and barrier walls are provided at least in regions.
  • the barrier structure of at least one coil is formed over its entire circumference.
  • a 360 ° encircling barrier structure is characterized in particular by a simpler manufacturing, on the other hand, a slightly increased space is needed If this space is available at a respective transformer, can in this way simplify the production of the coils in an advantageous manner and it In addition, it is no longer necessary to pay attention to alignment of the barrier structure relative to the transformer core.
  • the barrier structure of at least one coil is not formed over its entire circumference, wherein the Cross-section of the barrier structure is at its two outer ends stepped similar pronounced.
  • This is a variant which can be realized in a particularly simple manner, for example by means of a plurality of strips with a radially attached shell element, wherein the two outer steps are formed by a respective side wall of the respective outer strips.
  • the barrier structure of at least one coil is not formed over its entire circumference, wherein the cross section of the barrier structure merges flat at its two outer ends into the surface of the coil.
  • This variant is particularly suitable for at least partially wound barrier walls, wherein a respective insulating strip (18, 20, 22, 52, 72) then runs approximately tangentially between the upper edge of a respective outer strip and the surface of the respective coil.
  • a barrier structure is very similar to the structure of cooling channels arranged between radially adjacent coil segments, for example in the scattering channel. In this case, the chimney effect is advantageously utilized.
  • At least one of the barrier structures projects beyond at least one axial end of the respective coil. This is useful, for example, for controlling the air conditions at the ends of the respective cooling channels in order to increase their cooling effect.
  • Fig. 1 shows an exemplary inventive high-voltage transformer in a sectional top view 10.
  • legs 12, 14, 16 of a transformer core each have a hollow cylindrical coil 18, 20, 22 are arranged.
  • Each coil 18, 20, 22 has a radially inwardly located lower voltage winding and a radially outer high-voltage winding.
  • lens-like barrier structures are integrated, which are each formed by strips 26, 30, 34 and barrier walls 24, 28, 32 lying radially above them.
  • the barrier walls in this case are prefabricated shell elements, which are fixed on the surface of the coils 18, 20, 22 by means of a wound fiber roving.
  • Fig. 2 shows in contrast to Fig. 1 an exemplary high-voltage transformer according to the prior art, which has between adjacent coils respective barrier walls 42, 44, which are to be avoided according to the invention.
  • Fig. 3 shows a first exemplary hollow cylindrical coil with barrier structure in a representation 50.
  • a barrier structure 54 is integrated in a portion of the radially outer surface of a coil 52.
  • This has radially superimposed barrier walls 56, 58, which are each supported by axially extending strips.
  • the spaces between strips and barrier walls are formed as channel-like cavities 60, 62 and are used as cooling channels.
  • the side surfaces of the outer barrier walls 56, 58 form a step-like lateral termination of the barrier structure 54.
  • Fig. 4 shows a second exemplary hollow cylindrical coil with barrier structure in a representation 70.
  • a barrier structure 74 is integrated, the barrier wall is wound so that it flat in the surface of the coil 72nd passes.

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

Abstract

Die Erfindung betrifft einen Hochspannungstransformator (10), umfassend einen Transformatorkern mit wenigstens zwei axial parallelen Kernschenkeln (12, 14, 16), auf welchen jeweils eine hohlzylindrische Spule (18, 20, 22, 52, 72) mit jeweils wenigstens einer elektrischen Wicklung angeordnet ist. Zumindest in Teilbereichen gegeneinander zugewandter Oberflächen (36, 38) benachbart angeordneter Spulen (18, 20, 22, 52, 72) weisen die jeweiligen Oberflächenbereiche der Spulen eine jeweilige radial außen integrierte elektrisch isolierende Barrierenstruktur (54, 74).The invention relates to a high-voltage transformer (10), comprising a transformer core with at least two axially parallel core legs (12, 14, 16), on each of which a hollow cylindrical coil (18, 20, 22, 52, 72) each arranged with at least one electrical winding is. At least in partial regions of mutually facing surfaces (36, 38) of coils (18, 20, 22, 52, 72) arranged adjacent to one another, the respective surface regions of the coils have a respective radially externally integrated electrically insulating barrier structure (54, 74).

Description

Die Erfindung betrifft einen Hochspannungstransformator, umfassend einen Transformatorkern mit wenigstens zwei axial parallelen Kernsehenkeln, auf welchen jeweils eine hohlzylindrische Spule mit jeweils wenigstens einer elektrischen Wicklung angeordnet istThe invention relates to a high voltage transformer, comprising a transformer core with at least two axially parallel core loops, on each of which a hollow cylindrical coil is arranged, each with at least one electrical winding

Es ist allgemein bekannt, dass bei Hochspannungstransformatoren, beispielsweise im Nennspannungsbereich von 6 kV, 10kV, 30kV, 60kV, 110kV und darüber, Maßnahmen zur gegenseitigen Isolation benachbarter Spulen zu treffen sind, um elektrische Durchschläge zu vermeiden. Eine einfache Möglichkeit besteht darin, die Abstände zwischen spannungsführenden Komponenten entsprechend zu vergrößern, jedoch wird hierdurch auch die Baugröße des Hochspannungstransformators nachteilhaft erhöht. Dies gilt insbesondere für Trockentransformatoren, bei welchen eine Isolation lediglich durch das Medium Luft gegeben ist.It is well known that in high-voltage transformers, for example, in the rated voltage range of 6 kV, 10kV, 30kV, 60kV, 110kV and above, measures for mutual isolation of adjacent coils are to be made in order to avoid electrical breakdown. A simple possibility is to increase the distances between live components accordingly, but this also disadvantageously increases the size of the high-voltage transformer. This applies in particular to dry-type transformers in which insulation is provided only by the medium air.

Um den Abstand zwischen benachbarten Spulen und damit die Baugröße eines Transformators verringern zu können, ist es im Stand der Technik üblich, sogenannte Zwischenbarrieren zwischen benachbarten Spulen anzuordnen. Dies sind im Wesentlichen Platten aus einem Isolationsmaterial, welche zwischen den Spulen angeordnet sind und welche durch einen entsprechend verlängerten Entladungspfad längs deren Oberfläche ermöglichen, die betreffenden Spulen mit einem entsprechend geringerem Abstand zueinander anzuordnen.In order to reduce the distance between adjacent coils and thus the size of a transformer, it is common in the art to arrange so-called intermediate barriers between adjacent coils. These are essentially plates made of an insulating material, which are arranged between the coils and which allow by a correspondingly extended discharge path along the surface thereof to arrange the respective coils with a correspondingly smaller distance from each other.

Als nachteilig erweist sich hierbei, dass durch die isolationstechnisch notwendige Breite der Barrierenwandungen platzbedingte Konflikte mit beispielsweise den Anschlüssen der Spulen entstehen können, beispielsweise mit Dreiecksableitungen. Derartige Anschlüsse sind dann in aufwändiger Weise um die Barrieren herum zu führen.It proves to be disadvantageous that space-related conflicts with, for example, the connections of the coils can arise due to the insulation technology required width of the barrier walls, for example with triangular derivatives. Such connections are then lead around the barriers in a complex manner.

Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung, einen Hochspannungstransformator bereitzustellen, welcher eine separate zwischen benachbarten Spulen angeordnete Barrierenstruktur vermeidet.Based on this prior art, it is an object of the invention to provide a high-voltage transformer, which avoids a separate arranged between adjacent coils barrier structure.

Diese Aufgabe wird gelöst von einem Hochspannungstransformator der eingangs genannten Art. Dieser ist dadurch gekennzeichnet, dass zumindest in Teilbereichen gegeneinander zugewandter Oberflächen benachbart angeordneter Spulen die jeweiligen Oberflächenbereiche der Spulen eine jeweilige radial außen integrierte elektrisch isolierende Barrierenstruktur aufweisen.This object is achieved by a high-voltage transformer of the aforementioned type. This is characterized in that the respective surface regions of the coils have a respective radially externally integrated electrically insulating barrier structure at least in subregions of mutually facing surfaces adjacent coils arranged.

Die Grundidee der Erfindung besteht darin, eine Barriere direkt in die isolationstechnisch kritischen Oberflächenbereiche benachbarter Spulen zu integrieren. Dies sind von der Sache her insbesondere diejenigen Oberflächenbereiche benachbarter Spulen, welche gegeneinander zugewandt sind, wobei innerhalb dieser Oberflächenbereiche beim jeweils kleinsten gegenseitigen Abstand auch das höchste Risiko eines Durchschlags besteht. Eine jeweilige Barrierenstruktur umfasst typischerweise die gesamte axiale Länge einer Spule, kann aber auch bedarfsweise etwas verkürzt oder verlängert sein. Je nach Typ des Transformatorkerns ergeben sich unterschiedliche gegenüber liegende Oberflächenbereiche. Bei drei auf einem E-Kern angeordneten Spulen ergeben sich beispielsweise für die mittlere Spule zwei gegenüber liegend radial außen angeordnete Barrierenstrukturen, wobei für die beiden äußeren Spulen jeweils eine radial außen angeordnete Barrierenstruktur benötigt wird.The basic idea of the invention is to integrate a barrier directly into the insulation technology critical surface areas of adjacent coils. These are in particular those surface areas of adjacent coils which face each other, wherein within these surface areas at the smallest mutual distance there is also the highest risk of breakdown. A respective barrier structure typically includes the entire axial length of a coil, but may also be somewhat shortened or lengthened as needed. Depending on the type of transformer core, different opposite surface areas result. In the case of three coils arranged on an E-core, two barrier structures are provided, for example for the middle coil, arranged radially on the outside, wherein a barrier structure arranged radially on the outside is required for each of the two outer coils.

Bei einem dreieckigen Transformatorkern ergäben sich für jede Spule zwei um jeweils 60° zueinander versetzte Barrierenstrukturen, welche zweckmäßiger Weise durch eine übergreifende Barrierenstruktur realisiert werden sollten.In the case of a triangular transformer core, each barrier would have two barrier structures offset by 60 ° from each other, which should be realized by an overarching barrier structure.

Entsprechend würde bei einem Einphasen-Transformatoren mit einem 2-Schenkelkern jede der beiden Spulen in dem Bereich zur benachbarten Spule mit einer Barrierenstruktur versehen.Accordingly, in a single-phase transformer having a 2-leg core, each of the two coils in the region to the adjacent coil would be provided with a barrier structure.

Gemäß einer bevorzugten Ausgestaltungsform des erfindungsgemäßen Hochspannungstransformators sind die Barrierenstrukturen derart ausgestaltet, dass die zwischen den elektrischen Wicklungen der benachbarten Spulen im Betrieb auftretende Spannungsdifferenz ohne eine zusätzliche zwischen den Spulen angeordnete Barrierenwandung gehalten ist.According to a preferred embodiment of the high-voltage transformer according to the invention, the barrier structures are designed such that the voltage difference occurring between the electrical windings of the adjacent coils during operation is held without an additional barrier wall arranged between the coils.

Eine integrierte Barrierenstruktur reduziert in vorteilhafter Weise die zwischen den Spulen herrschende Feldstärkebelastung derart, dass keine weitere Zwischenbarriere mehr notwendig ist. Eine Barrierenstruktur lässt sich beispielsweise als linsenähnlicher Aufsatz auf die radial äußere Oberfläche einer Spule vorstellen. Idealerweise ist eine Barrierenstruktur bereits beim Herstellungsprozess der Spule in diese integriert worden, ähnlich wie die dem Fachmann bekannte Kühlkanäle, welche jedoch nicht an der Oberfläche der Spule sondern zwischen radial benachbarten Spulensegmenten angeordnet sind.An integrated barrier structure advantageously reduces the field strength loading prevailing between the coils in such a way that no further intermediate barrier is necessary any more. For example, a barrier structure can be thought of as a lens-like attachment to the radially outer surface of a coil. Ideally, a barrier structure has already been integrated into the coil during the production process, similar to the cooling channels known to those skilled in the art, which, however, are not arranged on the surface of the coil but between radially adjacent coil segments.

Durch entsprechend mechanisch feste Integration in die Oberflächen der jeweiligen Spulen ist die mechanische Stabilität eines betreffenden Transformators in vorteilhafter Weise erhöht, weil auf eine mechanisch labile Konstruktion einer oder mehrerer zwischen den Spulen angeordneten Barrierenplatten verzichtet wurde. In ebenso vorteilhafter Weise können bei einem erfindungsgemäßen Transformator daher alle Anschlüsse der Spulen ohne geometrische Beeinträchtigungen geführt werden.By correspondingly mechanically fixed integration into the surfaces of the respective coils, the mechanical stability of a respective transformer is advantageously increased because a mechanically labile construction of one or more barrier plates arranged between the coils has been dispensed with. In an equally advantageous manner, therefore, in a transformer according to the invention, all the connections of the coils can be guided without geometric impairments.

Einer weiterhin bevorzugten Ausgestaltungsform des erfindungsgemäßen Transformators folgend umfassen die Barrierenstrukturen axial verlaufende Leisten, welche eine radial darüber angeordnete Barrierenwandung tragen. Ein derartiges Konzept ist durch eine einfache Fertigungsweise sowie eine hohe mechanische Stabilität gekennzeichnet. Als hinreichend stabiles Material für die Leisten bietet sich beispielsweise ein Glasfaserverbundwerkstoff an.Following a further preferred embodiment of the transformer according to the invention, the barrier structures comprise axially extending strips which carry a barrier wall arranged radially above them. Such a concept is characterized by a simple manufacturing method and a high mechanical stability. As a sufficiently stable material for the strips, for example, offers a glass fiber composite material.

Gemäß einer weiteren Ausführungsvariante des erfindungsgemäßen Hochspannungstransformators ist die Barrierenwandung zumindest teilweise aus einem bandähnlichen Material gewickelt. Ein bandähnliches Material, beispielsweise ein harzgetränktes glasfaserverstärktes Faserroving, welches nach Abschluss des Wicklungsvorgangs einer Spule erhitzt wird und danach eine erhärtete Struktur bildet, ist beim Wickeln von Spulen von Hochspannungstransformatoren zu Isolations- und Stabilisierungszwecken bekannt. Erfindungsgemäß ist es daher in einer Variante vorgesehen, auch die radial äußere Barrierenstruktur mit einem derartigen Material zu befestigen oder sogar zumindest teilweise daraus zu wickeln. In vorteilhafter Weise wird dadurch sowohl eine hohe mechanische Festigkeit als auch eine gute Isolationsfähigkeit erreicht.According to a further embodiment of the high-voltage transformer according to the invention, the barrier wall is at least partially wound from a band-like material. A belt-like material, such as a resin impregnated glass fiber reinforced fiber roving, which is heated after completion of the winding process of a coil and thereafter forms a hardened structure, is known in winding coils of high voltage transformers for isolation and stabilization purposes. According to the invention, it is therefore provided in a variant to fix the radially outer barrier structure with such a material or even to wrap it at least partially. Advantageously, this achieves both high mechanical strength and good insulation capability.

Gemäß einer anderen Erfindungsvariante besteht die Barrierenwandung zumindest teilweise aus einem vorgefertigten Zylinderelement, beispielsweise einer isolierenden Halbschale. Derartige Zylinder- beziehungsweise Schalenelemente können einfach beim Wickelprozess einer Spule integriert werden und haben sich beispielsweise auch bei der Integration von Kühlkanälen bewährt.According to another variant of the invention, the barrier wall at least partially consists of a prefabricated cylindrical element, for example an insulating half-shell. Such cylinder or shell elements can be easily integrated during the winding process of a coil and have proven themselves, for example, in the integration of cooling channels.

Einer weiteren Erfindungsvariante folgend sind zumindest bereichsweise mehrere radial benachbarte Lagen von Leisten und Barrierenwandungen vorgesehen. Hierdurch wird beispielsweise in vorteilhafter Weise sowohl die mechanische Stabilität der Barrierenstruktur als auch deren Isolatonsfähigkeit erhöht.According to a further variant of the invention, a plurality of radially adjacent layers of strips and barrier walls are provided at least in regions. As a result, for example, both the mechanical stability of the barrier structure and its isolatability are advantageously increased.

Gemäß einer weiteren Variante der Erfindung ist die Barrierenstruktur wenigstens einer Spule über deren gesamten Umfang ausgebildet. Eine um 360° umlaufende Barrierenstruktur ist insbesondere durch eine einfachere Fertigung gekennzeichnet, wobei auf der anderen Seite ein geringfügig erhöhter Bauraum benötigt wird Wenn dieser Bauraum bei einem jeweiligen Transformator vorhanden ist, lässt sich auf diese Weise die Fertigung der Spulen in vorteilhafter Weise vereinfachen und es ist zudem nicht mehr auf eine Ausrichtung der Barrierenstruktur relativ zum Transformatorkern zu achten.According to a further variant of the invention, the barrier structure of at least one coil is formed over its entire circumference. A 360 ° encircling barrier structure is characterized in particular by a simpler manufacturing, on the other hand, a slightly increased space is needed If this space is available at a respective transformer, can in this way simplify the production of the coils in an advantageous manner and it In addition, it is no longer necessary to pay attention to alignment of the barrier structure relative to the transformer core.

Gemäß einer Variante des Hochspannungstransformators ist die Barrierenstruktur wenigstens einer Spule nicht über deren gesamten Umfang ausgebildet, wobei der Querschnitt der Barrierenstruktur an seinen beiden äußeren Enden stufenähnlich ausgeprägt ist. Dies ist eine Variante, welche sich produktionstechnisch besonders einfach beispielsweise mittels mehrerer Leisten mit radial aufgesetztem Schalenelement realisieren lassen, wobei die beiden äußeren Stufen durch eine jeweilige Seitenwand der jeweils äußeren Leisten gebildet sind.According to a variant of the high-voltage transformer, the barrier structure of at least one coil is not formed over its entire circumference, wherein the Cross-section of the barrier structure is at its two outer ends stepped similar pronounced. This is a variant which can be realized in a particularly simple manner, for example by means of a plurality of strips with a radially attached shell element, wherein the two outer steps are formed by a respective side wall of the respective outer strips.

Entsprechend einer weiteren Ausgestaltungsform des erfindungsgemäßen Transformators ist die Barrierenstruktur wenigstens einer Spule nicht über deren gesamten Umfang ausgebildet, wobei der Querschnitt der Barrierenstruktur an seinen beiden äußeren Enden flach in die Oberfläche der Spule übergeht. Diese Variante bietet sich insbesondere bei zumindest teilweise gewickelten Barrierenwandungen an, wobei ein jeweiliges Isolationsband (18, 20, 22, 52, 72) dann etwa tangential zwischen der Oberkante einer jeweiligen äußeren Leiste und der Oberfläche der jeweiligen Spule verläuft. Durch die Vermeidung einer Stufe wird eine möglichst kompakte Oberflächenstruktur gebildet.According to a further embodiment of the transformer according to the invention, the barrier structure of at least one coil is not formed over its entire circumference, wherein the cross section of the barrier structure merges flat at its two outer ends into the surface of the coil. This variant is particularly suitable for at least partially wound barrier walls, wherein a respective insulating strip (18, 20, 22, 52, 72) then runs approximately tangentially between the upper edge of a respective outer strip and the surface of the respective coil. By avoiding a step, the most compact possible surface structure is formed.

Gemäß einer weiteren Variante sind durch wenigstens eine der Barrierenstrukturen sich über deren gesamte axiale Länge erstreckende Hohlräume gebildet, welche als Kühlkanäle fungieren. Eine Barrierenstruktur ist nämlich der Struktur von zwischen radial benachbarten Spulensegmenten angeordneten Kühlkanälen, beispielsweise im Streukanal, sehr ähnlich. Hierbei wird in vorteilhafter Weise der Kamineffekt ausgenutzt.According to a further variant, extending through at least one of the barrier structures over its entire axial length extending cavities, which act as cooling channels. Namely, a barrier structure is very similar to the structure of cooling channels arranged between radially adjacent coil segments, for example in the scattering channel. In this case, the chimney effect is advantageously utilized.

Gemäß einer weiteren Erfindungsvariante ragt wenigstens eine der Barrierenstrukturen über wenigstens ein axiales Ende der jeweiligen Spule heraus. Dies ist beispielsweise zur Steuerung der Luftverhältnisse an den Enden der jeweiligen Kühlkanäle von Nutzen, um deren Kühlwirkung zu verstärken.According to a further variant of the invention, at least one of the barrier structures projects beyond at least one axial end of the respective coil. This is useful, for example, for controlling the air conditions at the ends of the respective cooling channels in order to increase their cooling effect.

Weitere vorteilhafte Ausgestaltungsmöglichkeiten sind den weiteren abhängigen Ansprüchen zu entnehmen.Further advantageous embodiment possibilities can be found in the further dependent claims.

Anhand der in den Zeichnungen dargestellten Ausführungsbeispiele sollen die Erfindung, weitere Ausführungsformen und weitere Vorteile näher beschrieben werden.Reference to the embodiments illustrated in the drawings, the invention, further embodiments and other advantages will be described in detail.

Es zeigen:

Fig. 1
einen exemplarischen erfindungsgemäßen Hochspannungstransformator,
Fig. 2
einen exemplarischen Hochspannungstransformator gemäß dem Stand der Technik,
Fig. 3
eine erste exemplarische hohlzylindrische Spule mit Barrierenstruktur sowie
Fig. 4
eine zweite exemplarische hohlzylindrische Spule mit Barrierenstruktur.
Show it:
Fig. 1
an exemplary high-voltage transformer according to the invention,
Fig. 2
an exemplary high-voltage transformer according to the prior art,
Fig. 3
a first exemplary hollow cylindrical coil with barrier structure as well
Fig. 4
a second exemplary hollow cylindrical coil with barrier structure.

Fig. 1 zeigt einen exemplarischen erfindungsgemäßen Hochspannungstransformator in einer Schnittdraufsicht 10. Um drei in einer gemeinsamen Ebene angeordnete Kernschenkel 12, 14, 16 eines Transformatorkems sind jeweils eine hohlzylindrische Spule 18, 20, 22 angeordnet. Jede Spule 18, 20, 22 weist eine radial innen liegende Unterspannungswicklung und eine radial außen liegende Oberspannungswicklung auf. In die durch die Pfeile 36 und 38 gekennzeichneten gegeneinander zugewandten Oberflächen der Spulen 18, 20, 22 sind linsenähnliche Barrierenstrukturen integriert, welche jeweils durch Leisten 26, 30, 34 und radial darüber liegende Barrierenwandungen 24, 28, 32 gebildet sind. Die Barrierenwandungen sind in diesem Fall vorgefertigte Schalenelemente, welche mittels eines gewickelten Faserrovings auf der Oberfläche der Spulen 18, 20, 22 fixiert sind. Fig. 1 shows an exemplary inventive high-voltage transformer in a sectional top view 10. To three arranged in a common plane core legs 12, 14, 16 of a transformer core each have a hollow cylindrical coil 18, 20, 22 are arranged. Each coil 18, 20, 22 has a radially inwardly located lower voltage winding and a radially outer high-voltage winding. In the mutually facing surfaces of the coils 18, 20, 22 marked by the arrows 36 and 38, lens-like barrier structures are integrated, which are each formed by strips 26, 30, 34 and barrier walls 24, 28, 32 lying radially above them. The barrier walls in this case are prefabricated shell elements, which are fixed on the surface of the coils 18, 20, 22 by means of a wound fiber roving.

Fig. 2 zeigt im Gegensatz zur Fig. 1 einen exemplarischen Hochspannungstransformator gemäß dem Stand der Technik, welcher zwischen benachbarten Spulen jeweilige Barrierenwandungen 42, 44 aufweist, welche erfindungsgemäß zu vermeiden sind. Fig. 2 shows in contrast to Fig. 1 an exemplary high-voltage transformer according to the prior art, which has between adjacent coils respective barrier walls 42, 44, which are to be avoided according to the invention.

Fig. 3 zeigt eine erste exemplarische hohlzylindrische Spule mit Barrierenstruktur in einer Darstellung 50. In einem Teilbereich der radial äußeren Oberfläche einer Spule 52 ist eine Barrierenstruktur 54 integriert. Diese weist radial übereinander angeordnete Barrierenwandungen 56, 58 auf, welche jeweils von axial verlaufenden Leisten abgestützt sind. Die Zwischenräume zwischen Leisten und Barrierenwandungen sind als kanalähnliche Hohlräume 60, 62 ausgebildet und werden als Kühlkanäle genutzt. Die Seitenflächen der äußeren Barrierenwandungen 56, 58 bilden einen stufenähnlichen seitlichen Abschluss der Barrierenstruktur 54. Fig. 3 shows a first exemplary hollow cylindrical coil with barrier structure in a representation 50. In a portion of the radially outer surface of a coil 52, a barrier structure 54 is integrated. This has radially superimposed barrier walls 56, 58, which are each supported by axially extending strips. The spaces between strips and barrier walls are formed as channel-like cavities 60, 62 and are used as cooling channels. The side surfaces of the outer barrier walls 56, 58 form a step-like lateral termination of the barrier structure 54.

Fig. 4 zeigt eine zweite exemplarische hohlzylindrische Spule mit Barrierenstruktur in einer Darstellung 70. An einem Teilbereich der Außenfläche einer hohlzylindrischen Spule 72 ist über einen Winkelbereich von etwa 90° eine Barrierenstruktur 74 integriert, deren Barrierewandung gewickelt ist, so dass diese flach in die Oberfläche der Spule 72 übergeht. Fig. 4 shows a second exemplary hollow cylindrical coil with barrier structure in a representation 70. At a portion of the outer surface of a hollow cylindrical coil 72 over a angular range of about 90 °, a barrier structure 74 is integrated, the barrier wall is wound so that it flat in the surface of the coil 72nd passes.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
exemplarischer erfindungsgemäßer Hochspannungstransformatorexemplary high-voltage transformer according to the invention
1212
erster Kernschenkelfirst core leg
1414
zweiter Kernschenkelsecond core leg
1616
dritter Kernschenkelthird core leg
1818
erste hohlzylindrische Spule von Hochspannungstransformatorfirst hollow cylindrical coil of high voltage transformer
2020
zweite hohlzylindrische Spule von Hochspannungstransformatorsecond hollow cylindrical coil of high voltage transformer
2222
dritte hohlzylindrische Spule von Hochspannungstransformatorthird hollow cylindrical coil of high voltage transformer
2424
Barrierenwandung von Barrierenstruktur von erster SpuleBarrier wall of barrier structure of first coil
2626
Leiste von Barrierenstruktur von erster SpuleBar of barrier structure from first coil
2828
Barrierenwandung von Barrierenstruktur von zweiter SpuleBarrier wall of barrier structure of second coil
3030
Leiste von Barrierenstruktur von zweiter SpuleBar of barrier structure from second coil
3232
Barrierenwandung von Barrierenstruktur von dritter SpuleBarrier wall of barrier structure of third coil
3434
Leiste von Barrierenstruktur von dritter SpuleBar of barrier structure of third coil
3636
erste gegeneinander zugewandte Oberflächenfirst surfaces facing each other
3838
zweite gegeneinander zugewandte Oberflächensecond facing surfaces
4040
exemplarischer Hochspannungstransformator gemäß Stand der TechnikExemplary high-voltage transformer according to the prior art
4242
BarrierenwandungenBarrierenwandungen
4444
BarrierenwandungenBarrierenwandungen
5050
erste exemplarische hohlzylindrische Spule mit Barrierenstrukturfirst exemplary hollow cylindrical coil with barrier structure
5252
erste exemplarische hohlzylindrische Spulefirst exemplary hollow cylindrical coil
5454
Barrierenstruktur von erster exemplarischer SpuleBarrier structure of first exemplary coil
5656
erste Barrierenwandung von Barrierenstrukturfirst barrier wall of barrier structure
5858
zweite Barrierenwandung von Barrierenstruktursecond barrier wall of barrier structure
6060
erster Hohlraum (als Kühlkanal genutzt)first cavity (used as cooling channel)
6262
zweiter Hohlraum (als Kühlkanal genutzt)second cavity (used as cooling channel)
7070
zweite exemplarische hohlzylindrische Spule mit Barrierenstruktursecond exemplary hollow cylindrical coil with barrier structure
7272
zweite exemplarische hohlzylindrische Spulesecond exemplary hollow cylindrical coil
7474
Barrierenstruktur von zweiter exemplarischer SpuleBarrier structure of second exemplary coil

Claims (11)

Hochspannungstransformator (10), umfassend einen Transformatorkern mit wenigstens zwei axial parallelen Kernschenkeln (12, 14, 16), auf welchen jeweils eine hohlzylindrische Spule (18, 20, 22, 52, 72) mit jeweils wenigstens einer elektrischen Wicklung angeordnet ist,
dadurch gekennzeichnet,
dass zumindest in Teilbereichen gegeneinander zugewandter Oberflächen (36, 38) benachbart angeordneter Spulen (18, 20, 22, 52, 72) die jeweiligen Oberflächenbereiche der Spulen eine jeweilige radial außen integrierte elektrisch isolierende Barrierenstruktur (54, 74) aufweisen.High-voltage transformer (10), comprising a transformer core with at least two axially parallel core legs (12, 14, 16), on each of which a hollow-cylindrical coil (18, 20, 22, 52, 72) having at least one electrical winding is arranged,
characterized,
in that at least in partial regions of mutually facing surfaces (36, 38) of coils (18, 20, 22, 52, 72) arranged adjacently, the respective surface regions of the coils have a respective radially externally integrated electrically insulating barrier structure (54, 74). Hochspannungstransformator nach Anspruch 1, dadurch gekennzeichnet, dass die Barrierenstrukturen (54, 74) derart ausgestaltet sind, dass die zwischen den elektrischen Wicklungen der benachbarten Spulen (18, 20, 22, 52, 72) im Betrieb auftretende Spannungsdifferenz ohne eine zusätzliche zwischen den Spulen angeordnete Barrierenwandung (42, 44) gehalten ist.High-voltage transformer according to claim 1, characterized in that the barrier structures (54, 74) are configured such that the voltage difference occurring between the electrical windings of the adjacent coils (18, 20, 22, 52, 72) during operation without an additional between the coils arranged barrier wall (42, 44) is held. Hochspannungstransformator nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Barrierenstrukturen (54, 74) axial verlaufende Leisten (26, 30, 34) umfassen, welche eine radial darüber angeordnete Barrierenwandung (24, 28, 32, 56, 58) tragen.High-voltage transformer according to Claim 1 or 2, characterized in that the barrier structures (54, 74) comprise axially extending strips (26, 30, 34) which carry a barrier wall (24, 28, 32, 56, 58) arranged radially above them. Hochspannungstransformator nach Anspruch 3, dadurch gekennzeichnet, dass die Barrierenwandung (24, 28, 32, 56, 58) zumindest teilweise aus einem bandähnlichen Material gewickelt ist.High-voltage transformer according to claim 3, characterized in that the barrier wall (24, 28, 32, 56, 58) is at least partially wound from a band-like material. Hochspannungstransformator nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die Barrierenwandung (24, 28, 32, 56, 58) zumindest teilweise aus einem vorgefertigten Zylinderelement besteht.High-voltage transformer according to claim 3 or 4, characterized in that the barrier wall (24, 28, 32, 56, 58) at least partially consists of a prefabricated cylinder element. Hochspannungstransformator nach Anspruch 3 bis 5, dadurch gekennzeichnet, dass zumindest bereichsweise mehrere radial benachbarte Lagen von Leisten (26, 30, 34) und Barrierenwandungen (24, 28, 32, 56, 58) vorgesehen sind.High-voltage transformer according to claim 3 to 5, characterized in that at least partially a plurality of radially adjacent layers of strips (26, 30, 34) and barrier walls (24, 28, 32, 56, 58) are provided. Hochspannungstransformator nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Barrierenstruktur (54, 74) wenigstens einer Spule (18, 20, 22, 52, 72) über deren gesamten Umfang ausgebildet ist.High-voltage transformer according to one of the preceding claims, characterized in that the barrier structure (54, 74) of at least one coil (18, 20, 22, 52, 72) is formed over its entire circumference. Hochspannungstransformator nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Barrierenstruktur (54, 74) wenigstens einer Spule (18, 20, 22, 52, 72) nicht über deren gesamten Umfang ausgebildet ist und dass der Querschnitt der Barrierenstruktur (54, 74) an seinen beiden äußeren Enden stufenähnlich ausgeprägt ist.High-voltage transformer according to one of the preceding claims, characterized in that the barrier structure (54, 74) of at least one coil (18, 20, 22, 52, 72) is not formed over its entire circumference and that the cross section of the barrier structure (54, 74) At its two outer ends step-like pronounced. Hochspannungstransformator nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Barrierenstruktur (54, 74) wenigstens einer Spule (18, 20, 22, 52, 72) nicht über deren gesamten Umfang ausgebildet ist und dass der Querschnitt der Barrierenstruktur (54, 74) an seinen beiden äußeren Enden flach in die Oberfläche der Spule (18, 20, 22, 52, 72) übergeht.High-voltage transformer according to one of the preceding claims, characterized in that the barrier structure (54, 74) of at least one coil (18, 20, 22, 52, 72) is not formed over its entire circumference and that the cross section of the barrier structure (54, 74) at its two outer ends flat in the surface of the coil (18, 20, 22, 52, 72) passes. Hochspannungstransformator nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass durch wenigstens eine der Barrierenstrukturen (54, 74) sich über deren gesamte axiale Länge erstreckende Hohlräume (60, 62) gebildet sind, welche als Kühlkanäle fungieren.High-voltage transformer according to one of the preceding claims, characterized in that through at least one of the barrier structures (54, 74) over its entire axial length extending cavities (60, 62) are formed, which act as cooling channels. Hochspannungstransformator nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass wenigstens eine der Barrierenstrukturen (54, 74) über wenigstens ein axiales Ende der jeweiligen Spule (18, 20, 22, 52, 72) herausragt.High-voltage transformer according to one of the preceding claims, characterized in that at least one of the barrier structures (54, 74) protrudes beyond at least one axial end of the respective coil (18, 20, 22, 52, 72).
EP13005035.4A 2013-10-22 2013-10-22 High voltage transformer Active EP2866235B1 (en)

Priority Applications (5)

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EP13005035.4A EP2866235B1 (en) 2013-10-22 2013-10-22 High voltage transformer
PL13005035T PL2866235T3 (en) 2013-10-22 2013-10-22 High voltage transformer
CA2866054A CA2866054C (en) 2013-10-22 2014-10-03 High-voltage transformer
US14/515,102 US9478350B2 (en) 2013-10-22 2014-10-15 High-voltage transformer
CN201410564835.XA CN104575988B (en) 2013-10-22 2014-10-22 High-tension transformer

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EP13005035.4A EP2866235B1 (en) 2013-10-22 2013-10-22 High voltage transformer

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EP2866235B1 EP2866235B1 (en) 2019-09-25

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CN (1) CN104575988B (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT518664A4 (en) * 2016-04-22 2017-12-15 Trench Austria Gmbh HVDC air choke coil and method of manufacture

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388566A (en) * 1942-05-16 1945-11-06 Gen Electric Electric apparatus
US3142029A (en) * 1960-08-22 1964-07-21 Gen Electric Shielding of foil wound electrical apparatus
US3302149A (en) * 1964-09-30 1967-01-31 Westinghouse Electric Corp Electrical insulating structure
US4173747A (en) * 1978-06-08 1979-11-06 Westinghouse Electric Corp. Insulation structures for electrical inductive apparatus
WO2006069590A1 (en) * 2004-12-27 2006-07-06 Abb Technology Ag An electrical induction device for high-voltage applications
EP2472533A1 (en) * 2011-01-04 2012-07-04 ABB Technology AG Transformer coil with cooling channel
WO2012103613A1 (en) * 2011-02-02 2012-08-09 Siemens Ltda Dry distribution transformer
US8520357B2 (en) * 2008-04-18 2013-08-27 Trench Austria Gmbh Electrostatic shield for an HVDC transmission component

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0722111B1 (en) * 2007-09-28 2018-11-21 Siemens Ag transformer having at least one magnetizable core, with one breech and at least two tabs
CN103093942B (en) * 2011-11-01 2016-03-09 株式会社日立产机系统 Amorphous iron core transformer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388566A (en) * 1942-05-16 1945-11-06 Gen Electric Electric apparatus
US3142029A (en) * 1960-08-22 1964-07-21 Gen Electric Shielding of foil wound electrical apparatus
US3302149A (en) * 1964-09-30 1967-01-31 Westinghouse Electric Corp Electrical insulating structure
US4173747A (en) * 1978-06-08 1979-11-06 Westinghouse Electric Corp. Insulation structures for electrical inductive apparatus
WO2006069590A1 (en) * 2004-12-27 2006-07-06 Abb Technology Ag An electrical induction device for high-voltage applications
US8520357B2 (en) * 2008-04-18 2013-08-27 Trench Austria Gmbh Electrostatic shield for an HVDC transmission component
EP2472533A1 (en) * 2011-01-04 2012-07-04 ABB Technology AG Transformer coil with cooling channel
WO2012103613A1 (en) * 2011-02-02 2012-08-09 Siemens Ltda Dry distribution transformer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT518664A4 (en) * 2016-04-22 2017-12-15 Trench Austria Gmbh HVDC air choke coil and method of manufacture
AT518664B1 (en) * 2016-04-22 2017-12-15 Trench Austria Gmbh HVDC air choke coil and method of manufacture
US11562853B2 (en) 2016-04-22 2023-01-24 Siemens Energy Global GmbH & Co. KG High voltage direct current energy transmission (HVDCT) air-core inductor, and method for manufacturing the HVDCT air-core inductor

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CN104575988A (en) 2015-04-29
US9478350B2 (en) 2016-10-25
CN104575988B (en) 2018-03-30
EP2866235B1 (en) 2019-09-25
PL2866235T3 (en) 2020-04-30
US20150109089A1 (en) 2015-04-23
CA2866054C (en) 2022-04-26
CA2866054A1 (en) 2015-04-22

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