EP1060485B1 - Multiple parallel conductor for electrical machines and devices - Google Patents
Multiple parallel conductor for electrical machines and devices Download PDFInfo
- Publication number
- EP1060485B1 EP1060485B1 EP99900823A EP99900823A EP1060485B1 EP 1060485 B1 EP1060485 B1 EP 1060485B1 EP 99900823 A EP99900823 A EP 99900823A EP 99900823 A EP99900823 A EP 99900823A EP 1060485 B1 EP1060485 B1 EP 1060485B1
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- EP
- European Patent Office
- Prior art keywords
- multiple parallel
- conductor
- insulating material
- bundle
- protective insulating
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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.)
- Expired - Lifetime
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- 239000004020 conductor Substances 0.000 title claims abstract description 111
- 230000001681 protective effect Effects 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 32
- 239000011810 insulating material Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 abstract description 43
- 238000001816 cooling Methods 0.000 description 7
- 239000002826 coolant Substances 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
- H01F27/323—Insulation between winding turns, between winding layers
Definitions
- the present invention relates to a multiple parallel conductor for an electrical Machine, in particular for a transformer, consisting of a plurality of neighboring, preferably insulated, partial conductors, which form a bundle are summarized, and a method for producing such Multiple parallel conductors. Furthermore, the present invention relates to a winding for a electrical machine, in particular a transformer with a top and a Undervoltage winding, consisting of at least one multiple parallel conductor Above type, with successive turns of the multiple parallel conductor or parallel parallel multiple parallel and axially and / or radially adjacent are arranged.
- Multiple parallel conductors are included to improve the cooling of electrical conductors a grid-shaped wrap known.
- a multiple parallel conductor consisting of a plurality of partial conductors or twisted conductors described, which with a large-mesh woven ribbon or mesh ribbon made of polyester or a glass silk / polyester mixture is banded, which has a mesh size of at least 2 mm.
- the multiple parallel conductor and / or the woven or lattice band is still impregnated with a partially cross-linked epoxy resin. With such a woven ribbon one can stable compact conductor are produced, in which the partial conductor directly with the Coolant in contact.
- an electrical conductor is known from US Pat. No. 3,098,113, which completely coexists with an oil-impregnable main insulation and a liquid-impermeable Partial insulation is surrounded to allow oil impregnation, but a To prevent water from entering at least partially.
- the liquid impermeable Partial insulation is in turn provided with an oil-impregnable covering.
- This task is based on the multiple parallel ladder mentioned above solved according to the invention in that over the outer surfaces of the partial conductor bundle Flat protective insulation is provided, which has at least one surface section of the partial conductor bundle and at least one further surface section of the Partial conductor bundle is not covered, the surface sections, based on the Longitudinal direction of the multiple parallel conductor, are arranged side by side, and that a lattice-shaped covering, e.g. a grid tape, a thread winding or the like. is provided.
- a lattice-shaped covering e.g. a grid tape, a thread winding or the like.
- the side surfaces with a flat protective insulation stand together in direct contact.
- the protective insulation comprises one or more side surfaces and that of this side surface or edge regions of the neighboring ones facing these side surfaces, not with side surfaces provided with protective insulation and possibly the edge areas between adjacent side surfaces provided with protective insulation. So that's a increased protection of the conductor in the area of the edges possible, so that the electrical Dielectric strength can be further increased.
- the Protective insulation preferably at least two adjacent side surfaces of the Multiple parallel conductor to provide all-round protection of the multiple parallel conductor enable.
- the flat protective insulation is preferably a paper insulation, which due to its good insulation properties and low space consumption for the purposes of present invention is extremely suitable.
- FIG. 1 in which a multiple parallel conductor 1 for an electrical machine using the example of a cable for Undervoltage winding of a transformer is shown.
- the multiple parallel ladder has a number of partial conductors 2, z. B. flat copper conductor with a rectangular Cross section on.
- Each partial conductor 2 is provided with insulation 3, in the present case with a varnish coating Mistake.
- the individual partial conductors 2 in the desired number and orientation combined into a sub-conductor bundle.
- the top of the partial conductor bundle Protective insulation 4 there is a on the top of the partial conductor bundle Protective insulation 4 arranged, which covers the entire top and this top facing edge areas of the side surfaces covered.
- the side surfaces and the The underside of the partial conductor bundle remain without protective insulation.
- material for the Protective insulation is oil-impregnable insulating material, preferably paper, in the required quality and thickness selected.
- the arrangement of the partial conductor bundle with the protective insulation is to achieve the required stability wrapped with a large-mesh grid tape 5. Further Information regarding the grid belt 5 can be given at the beginning international application WO95 / 30991 are taken from the applicant, which is expressly to be regarded as part of the present disclosure.
- Figures 2 and 3 are further embodiments for the invention Multiple parallel conductor using a wire conductor for the undervoltage or Medium voltage winding of a transformer shown.
- a wire conductor for the undervoltage or Medium voltage winding of a transformer shown.
- the protective insulation 4 is on one Side surface and a portion of this top surface facing this side surface arranged, this protective insulation preferably also over the adjacent Extends edge areas. The remaining section of the top, bottom, and opposite side surface are without protective insulation.
- Figure 3 extends the protective insulation 4 over one side surface and the entire Top of the multiple parallel conductor 1, again preferably the adjacent ones Edge areas are included. The opposite side and the bottom remain without protective insulation.
- the arrangement of the protective insulation according to the exemplary embodiments described above is not restrictive.
- Protective insulation can be used in the context of the present invention can be arranged at any point and over any surface section extend. In the context of the present invention it is only provided that the Protective insulation over at least one surface section (side surface, top side, Underside) extends and leaves at least one surface section free.
- two or more protective insulations can also be used be provided, for example diametrically opposite or to each other can be arranged adjacent.
- Windings are the side surfaces of two or more that are in contact with each other Multiple parallel conductor 1 each with protective insulation 4 to the electrical To increase the dielectric strength of the winding further.
- the multiple parallel conductors can be used instead the axial direction, even in a radial direction offset by 90 ° be arranged side by side.
- the protective insulation is on the vertical boundary surfaces between the individual turns of the radial winding arranged.
- Winding is only a part of the side surfaces of two or two that are in contact with each other several multiple parallel conductors with a flat protective insulation 4.
- a winding 6 is shown for a transformer, which by a so-called drill conductor trained multiple parallel conductor 7 is made of a large number of partial conductors 2.
- the multiple parallel conductors 7 designed according to the invention are arranged such that at least on one of the horizontal boundary surfaces over which the individual Turns are in direct contact with each other, at least one Multiple parallel conductor 7 is provided with protective insulation 4.
- Such multiple parallel conductors 7, which are connected to neighboring ones Windings are not in direct contact, likewise with protective insulation 4 according to of the present invention be equipped to the mechanical stability and the to increase the dielectric strength of the multiple parallel conductor.
- Such a Multiple parallel conductor is shown in Figure 5 above.
- multiple parallel conductors can also be used both in radial as well as in the axial direction are involved, for. B. in groups of four (Fig. 4a, 4b).
- an L-shaped protective insulation is preferably provided (see also Fig. 3), which extends both horizontally and vertically Side surface of each multiple parallel conductor extends.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
- Installation Of Bus-Bars (AREA)
- Programmable Controllers (AREA)
- Insulated Conductors (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Mehrfachparallelleiter für eine elektrische Maschine, insbesondere für einen Transformator, bestehend aus einer Mehrzahl von benachbarten, vorzugsweise voneinander isolierten Teilleitern, die zu einem Bündel zusammengefaßt sind, sowie ein Verfahren zur Herstellung eines solchen Mehrfachparallelleiters. Weiters betrifft die vorliegende Erfindung eine Wicklung für eine elektrische Maschine, insbesondere ein Transformator mit einer Ober- und einer Unterspannungswicklung, bestehend aus zumindest einem Mehrfachparallelleiter der oben genannten Art, wobei aufeinanderfolgende Windungen des Mehrfachparallelleiters oder parallel gewickelte Mehrfachparallelleiter axial und/oder radial benachbart angeordnet sind.The present invention relates to a multiple parallel conductor for an electrical Machine, in particular for a transformer, consisting of a plurality of neighboring, preferably insulated, partial conductors, which form a bundle are summarized, and a method for producing such Multiple parallel conductors. Furthermore, the present invention relates to a winding for a electrical machine, in particular a transformer with a top and a Undervoltage winding, consisting of at least one multiple parallel conductor Above type, with successive turns of the multiple parallel conductor or parallel parallel multiple parallel and axially and / or radially adjacent are arranged.
Zur Verbesserung der Kühlung von elektrischen Leitern sind Mehrfachparallelleiter mit einer gitterförmigen Umwicklung bekannt. Beispielsweise ist in der internationalen Veröffentlichung WO95/30991 der Anmelderin ein Mehrfachparallelleiter, bestehend aus einer Mehrzahl von Teilleitern oder Drilleitern beschrieben, welcher mit einem großmaschigen Webband oder Gitterband aus Polyester oder einem Glasseide/Polyester-Gemisch umbändert ist, welches eine Maschenweite von zumindest 2 mm aufweist. Gegebenenfalls ist der Mehrfachparallelleiter und/oder das Web- bzw. Gitterband noch mit einem teilvernetzten Epoxidharz imprägniert. Mit einem solchen Webband kann ein stabiler kompakter Leiter hergestellt werden, bei welchem die Teilleiter direkt mit dem Kühlmedium in Kontakt stehen. Durch diese wesentlich verbesserten Kühleigenschaften sind eine kompaktere und kostengünstigere Bauweise von elektrischen Maschinen und Geräten möglich. Wird ein Mehrfachparallelleiter dieser Art in der Weise verarbeitet, daß einzelne Windungen oder parallel gewickelte Mehrfachparallelleiter direkt aneinander liegen, besteht die Gefahr, daß die Lackisolation der Teilleiter durch Reibung beschädigt und die elektrischen Eigenschaften der Wicklung dadurch beeinträchtigt werden. Aus diesem Grund wird ein Mehrfachparallelleiter dieser Art in der Praxis so verarbeitet, daß zwischen zwei benachbarten Mehrfachparallelleitern Distanzstücke angeordnet sind.Multiple parallel conductors are included to improve the cooling of electrical conductors a grid-shaped wrap known. For example, in the international Publication WO95 / 30991 by the applicant a multiple parallel conductor consisting of a plurality of partial conductors or twisted conductors described, which with a large-mesh woven ribbon or mesh ribbon made of polyester or a glass silk / polyester mixture is banded, which has a mesh size of at least 2 mm. If necessary, the multiple parallel conductor and / or the woven or lattice band is still impregnated with a partially cross-linked epoxy resin. With such a woven ribbon one can stable compact conductor are produced, in which the partial conductor directly with the Coolant in contact. Through these significantly improved cooling properties are a more compact and less expensive construction of electrical machines and Devices possible. Is a multiple parallel conductor of this type processed in such a way that single turns or parallel parallel multiple parallel conductors directly next to each other lie, there is a risk that the paint insulation of the partial conductor is damaged by friction and the electrical properties of the winding are affected. Out for this reason, a multiple parallel conductor of this type is processed in practice so that Spacers are arranged between two adjacent multiple parallel conductors.
Weiters ist aus der US 3 098 113 ein elektrischer Leiter bekannt, welcher vollständig mit einer ölimprägnierbaren Hauptisolierung und einer flüssigkeitsundurchlässigen Teilisolierung umgeben ist, um zwar eine Ölimprägnierung zu ermöglichen, jedoch ein Eindringen von Wasser zumindest teilweise zu verhindern. Die flüssigkeitsundurchlässige Teilisolierung ist wiederum mit einer ölimprägnierbaren Umhüllung versehen. Im Hinblick auf einen kompakten und stabilen Leiter ist diese Konstrukion unvorteilhaft, da sie zumindest abschnittsweise doppelte und dreifache Isolierschichten erfordert. Weiters zeichnet sich dieser Leiter durch vergleichsweise schlechte Kühleigenschaften aus.Furthermore, an electrical conductor is known from US Pat. No. 3,098,113, which completely coexists with an oil-impregnable main insulation and a liquid-impermeable Partial insulation is surrounded to allow oil impregnation, but a To prevent water from entering at least partially. The liquid impermeable Partial insulation is in turn provided with an oil-impregnable covering. With regard on a compact and stable conductor, this construction is disadvantageous because it double and triple layers of insulation required at least in sections. Furthermore this conductor is characterized by comparatively poor cooling properties.
Es ist eine Aufgabe der vorliegenden Erfindung, durch Weiterentwicklung von Mehrfachparallelleitern der oben genannten Art eine Möglichkeit zu finden, Wicklungen mit einem noch höheren Füllfaktor zu schaffen, bei welchen eine Beeinträchtigung der elektrischen Eigenschaften vermieden werden kann und dennoch gute Kühleigenschaften erzielt werden. Weiters ist es eine Aufgabe der Erfindung, ein Verfahren zur Herstellung eines solchen Mehrfachparallelleiters anzugeben, sowie eine Möglichkeit zur Herstellung von Wicklungen, bestehend aus zumindest einem solchen Mehrfachparallelleiter zu schaffen.It is an object of the present invention through further development of Multiple parallel conductors of the type mentioned above find a way to windings to create with an even higher fill factor, in which an impairment of the electrical properties can be avoided and still good cooling properties be achieved. Furthermore, it is an object of the invention to provide a method for the production to specify such a multiple parallel conductor, as well as a possibility for production of windings consisting of at least one such multiple parallel conductor create.
Diese Aufgabe wird ausgehend von dem oben angeführten Mehrfachparallelleiter erfindungsgemäß dadurch gelöst, daß über den Außenflächen des Teilleiterbündels eine flächige Schutzisolation vorgesehen ist, welche zumindest einen Oberflächenabschnitt des Teilleiterbündels überdeckt und zumindest einen weiteren Oberflächenabschnitt des Teilleiterbündels nicht überdeckt, wobei die Oberflächenabschnitte, bezogen auf die Längsrichtung des Mehrfachparallelleiters, nebeneinander angeordnet sind, und daß darüber zumindest abschnittsweise eine gitterförmige Umhüllung, z.B. ein Gitternetzband, eine Faden-Umspinnung od.dgl. vorgesehen ist. Bei einem Verfahren der erfindungsgemäßen Art ist demnach vorgesehen, daß auf das Teilleiterbündel eine zumindest eine Seitenfläche, jedoch nicht den gesamten Umfang des Teilleiterbundels überdeckende flächige Schutzisolation aufgebracht wird und daß das Teilleiterbündel samt Schutzisolation mit einer gitterförmigen Umhüllung versehen wird. Eine Wicklung bestehend aus zumindest einem erfindungsgemäßen Mehrfachparallelleiter, bei welcher aufeinanderfolgende Windungen des Mehrfachparallelleiters oder parallel gewickelte Mehrfachparallelleiter axial und/oder radial benachbart angeordnet sind, ist erfindungsgemäß dadurch gekennzeichnet, daß von den einander zugewandten Seitenflächen benachbarter Windungsabschnitte des Mehrfachparallelleiters zumindest eine Seitenfläche mit einer flächigen Schutzisolation versehen ist. Bei einer Ausführungsform der erfindungsgemäßen Wicklung mit einem besonders hohen Füllfaktor stehen die mit einer flächigen Schutzisolation versehenen Seitenflächen miteinander unmittelbar in Kontakt. This task is based on the multiple parallel ladder mentioned above solved according to the invention in that over the outer surfaces of the partial conductor bundle Flat protective insulation is provided, which has at least one surface section of the partial conductor bundle and at least one further surface section of the Partial conductor bundle is not covered, the surface sections, based on the Longitudinal direction of the multiple parallel conductor, are arranged side by side, and that a lattice-shaped covering, e.g. a grid tape, a thread winding or the like. is provided. In a process of The type according to the invention is accordingly provided that a at least one side surface, but not the entire circumference of the partial conductor bundle covering flat protective insulation is applied and that the partial conductor bundle including protective insulation is provided with a lattice-shaped covering. A winding consisting of at least one multiple parallel conductor according to the invention, in which successive turns of the multiple parallel conductor or wound in parallel Multiple parallel conductors are arranged axially and / or radially adjacent according to the invention characterized in that of the facing each other Side surfaces of adjacent winding sections of the multiple parallel conductor at least one side surface is provided with a flat protective insulation. At a Embodiment of the winding according to the invention with a particularly high fill factor the side surfaces with a flat protective insulation stand together in direct contact.
Durch die Kombination einer Schutzisolation mit einer gitterförmigen Umhüllung wird sowohl eine erhöhte mechanische Festigkeit als auch eine höhere Spannungsfestigkeit erreicht, sodaß die einzelnen Mehrfachparallelleiter einer Windung -ohne Zwischenschaltung von Distanzstücken- unmittelbar übereinander oder nebeneinander angeordnet werden können, ohne die elektrischen Eigenschaften dabei zu beeinträchtigen. Durch die freie Zugänglichkeit der nicht miteinander in Kontakt stehenden Oberflächen des Mehrfachparallelleiters für das Kühlmedium und die guten Kühlungseigenschaften eines mit einer gitterförmigen Umhüllung versehenen Mehrfachparallelleiters ist eine ausreichende Kühlung des Leiters bzw. der Wicklung gewährleistet. Durch diese erfindungsgemäße Lösung können somit der Füllfaktor und folglich die Herstellkosten für eine Wicklung weiter reduziert und die Betriebssicherheit weiter erhöht werden.By combining protective insulation with a lattice-shaped covering both increased mechanical strength and higher dielectric strength reached so that the individual multiple parallel conductors of one turn - without Interposition of spacers - directly above or next to each other can be arranged without the electrical properties affect. Due to the free accessibility of those who are not in contact with each other Surfaces of the multiple parallel conductor for the cooling medium and the good ones Cooling properties of a multiple parallel conductor provided with a grid-shaped sheath sufficient cooling of the conductor or winding is guaranteed. With this solution according to the invention, the fill factor and consequently the Manufacturing costs for a winding are further reduced and operational reliability is further increased become.
Bei einer bevorzugten Ausführungsform des erfindungsgemäßen Mehrfachparallelleiters umfaßt die Schutzisolation eine oder mehrere Seitenflächen und die dieser Seitenfläche bzw. diesen Seitenflächen zugewandten Kantenbereiche der benachbarten, nicht mit einer Schutzisolation versehenen Seitenflächen und gegebenenfalls die Kantenbereiche zwischen benachbarten, mit einer Schutzisolation versehenen Seitenflächen. Damit ist ein erhöhter Schutz des Leiters im Bereich der Kanten möglich, sodaß die elektrische Spannungsfestigkeit weiter gesteigert werden kann.In a preferred embodiment of the multiple parallel conductor according to the invention the protective insulation comprises one or more side surfaces and that of this side surface or edge regions of the neighboring ones facing these side surfaces, not with side surfaces provided with protective insulation and possibly the edge areas between adjacent side surfaces provided with protective insulation. So that's a increased protection of the conductor in the area of the edges possible, so that the electrical Dielectric strength can be further increased.
Bei einer Wicklung, bei welcher benachbarte Mehrfachparallelleiter über zwei Seitenflächen miteinander in Kontakt stehen, z.B. bei einer Vierergruppe, überdeckt die Schutzisolation vorzugsweise zumindest zwei benachbarte Seitenflächen des Mehrfachparallelleiters, um einen allseitigen Schutz des Mehrfachparallelleiters zu ermöglichen.In the case of a winding in which adjacent multiple parallel conductors have two Side surfaces are in contact with each other, e.g. in a group of four, covers the Protective insulation preferably at least two adjacent side surfaces of the Multiple parallel conductor to provide all-round protection of the multiple parallel conductor enable.
Die flächige Schutzisolation ist vorzugsweise eine Papierisolation, welche aufgrund ihrer guten Isoliereigenschaften und des geringen Platzverbrauchs für die Zwecke der vorliegenden Erfindung hervorragend geeignet ist.The flat protective insulation is preferably a paper insulation, which due to its good insulation properties and low space consumption for the purposes of present invention is extremely suitable.
Weitere Merkmale der vorliegenden Erfindung ergeben sich aus der nachfolgenden
Beschreibung von nicht einschränkenden Ausführungsbeispielen des erfindungsgemäßen
Mehrfachparallelleiters bzw. einer damit hergestellten Wicklung, wobei auf die
beiliegenden Figuren Bezug genommen wird, die folgendes zeigen:
Im folgenden wird auf die Figur 1 Bezug genommen, in welcher ein Mehrfachparallelleiter
1 für eine elektrische Maschine am Beispiel eines Drilleiters für die
Unterspannungswicklung eines Transformators dargestellt ist. Der Mehrfachparallelleiter
weist eine Anzahl von Teilleitern 2, z. B. flache Kupferleiter mit einem rechteckigen
Querschnitt auf.In the following, reference is made to FIG. 1, in which a multiple parallel conductor
1 for an electrical machine using the example of a cable for
Undervoltage winding of a transformer is shown. The multiple parallel ladder
has a number of
Jeder Teilleiter 2 ist mit einer Isolierung 3, im vorliegenden Fall einem Lacküberzug
versehen. Zur Herstellung des Mehrfachparallelleiters werden die einzelnen Teilleiter 2 in
der gewünschten Anzahl und Ausrichtung zu einem Teilleiterbündel zusammengefaßt.Each
Bei dem vorliegenden Ausführungsbeispiel ist an der Oberseite des Teilleiterbündels eine
Schutzisolation 4 angeordnet, welche die gesamte Oberseite und die dieser Oberseite
zugewandten Kantenbereiche der Seitenflächen überdeckt. Die Seitenflächen und die
Unterseite des Teilleiterbündels bleiben ohne Schutzisolation. Als Material für die
Schutzisolation wird ölimprägnierbarer Isolierstoff, vorzugsweise Papier, in der
erforderlichen Qualität und Dicke gewählt.In the present exemplary embodiment, there is a on the top of the partial conductor bundle
Die Anordnung des Teilleiterbündels mit der Schutzisolation ist zur Erreichung der
erforderlichen Stabilität mit einem großmaschigen Gitterband 5 umwickelt. Weitere
informationen betreffend das Gitterband 5 können der eingangs angeführten
internationalen Anmeldung WO95/30991 der Anmelderin entnommen werden, welche
ausdrücklich als ein Teil der vorliegenden Offenbarung anzusehen ist.The arrangement of the partial conductor bundle with the protective insulation is to achieve the
required stability wrapped with a large-
Anstelle des oben angeführten Gitterbandes 5 können im Rahmen der vorliegenden
Erfindung natürlich auch alle anderen, dem Fachmann bekannte Mittel zur Stabilisierung
eines Teilleiterbündels, bei welchem das Kühlmedium mit zumindest einer Seitenfläche
des Teilleiterbündels in unmittelbarem Kontakt gerät, z. B. eine kreuzweise Umwicklung
mit Fäden, verwendet werden.Instead of the above-mentioned
In den Figuren 2 und 3 sind weitere Ausführungsbeispiele für den erfindungsgemäßen Mehrfachparallelleiter anhand eines Drilleiters für die Unterspannungs- oder Mittelspannungswicklung eines Transformators dargestellt. In der nachfolgenden Beschreibung werden für dieselben Merkmale identische Bezugszeichen verwendet und diese nicht mehr ausführlich erläutert.In Figures 2 and 3 are further embodiments for the invention Multiple parallel conductor using a wire conductor for the undervoltage or Medium voltage winding of a transformer shown. In the following Description are used for the same features and identical reference numerals these are no longer explained in detail.
Bei dem Mehrfachparallelleiter 1 von Figur 2 ist die Schutzisolation 4 an einer
Seitenfläche und eines dieser Seitenfläche zugewandten Teilabschnittes der Oberseite
angeordnet, wobei sich diese Schutzisolation vorzugsweise auch über die angrenzenden
Kantenbereiche erstreckt. Der restliche Abschnitt der Oberseite, die Unterseite und die
gegenüberliegende Seitenfläche sind ohne Schutzisolation.In the case of the multiple parallel conductor 1 from FIG. 2, the
Bei dem Ausführungsbeispiel eines erfindungsgemäßen Mehrfachparallelleiters 1 gemäß
Figur 3 erstreckt sich die Schutzisolation 4 über eine Seitenfläche und die gesamte
Oberseite des Mehrfachparallelleiters 1, wobei wiederum vorzugsweise die angrenzenden
Kantenbereiche mit umfaßt sind. Die gegenüber liegende Seitenfläche und die Unterseite
verbleiben ohne Schutzisolation.In the embodiment of a multiple parallel conductor 1 according to the invention
Figure 3 extends the
Die Anordnung der Schutzisolation gemäß der oben beschriebenen Ausführungsbeispiele ist nicht einschränkend. Im Rahmen der vorliegenden Erfindung kann eine Schutzisolation an jeder beliebigen Stelle angeordnet sein und sich über beliebige Oberflächenabschnitte erstrecken. Im Rahmen der vorliegenden Erfindung ist lediglich vorgesehen, daß sich die Schutzisolation über zumindest einen Oberflächenabschnitt (Seitenfläche, Oberseite, Unterseite) erstreckt und zumindest einen Oberflächenabschnitt frei läßt. The arrangement of the protective insulation according to the exemplary embodiments described above is not restrictive. Protective insulation can be used in the context of the present invention can be arranged at any point and over any surface section extend. In the context of the present invention it is only provided that the Protective insulation over at least one surface section (side surface, top side, Underside) extends and leaves at least one surface section free.
Im Rahmen der vorliegenden Erfindung können weiters zwei oder mehr Schutzisolationen vorgesehen sein, welche beispielsweise diametral gegenüberliegend oder aneinander angrenzend angeordnet sein können.In the context of the present invention, two or more protective insulations can also be used be provided, for example diametrically opposite or to each other can be arranged adjacent.
Bei einer in Figur 4a dargestellten Ausführungsvariante einer erfindungsgemäßen
Wicklung sind die miteinander in Kontakt stehenden Seitenflächen zweier oder mehrerer
Mehrfachparallelleiter 1 mit je einer Schutzisolation 4 versehen, um die elektrische
Spannungsfestigkeit der Wicklung weiter zu erhöhen.In a variant of an embodiment of the invention shown in FIG. 4a
Windings are the side surfaces of two or more that are in contact with each other
Multiple parallel conductor 1 each with
Bei einer anderen, nicht dargestellten Wicklung können die Mehrfachparallelleiter, anstelle der axialen Richtung, auch in einer um 90° versetzten radialen Richtung unmittelbar nebeneinander angeordnet werden. In diesem Fall ist die Schutzisolation an den vertikalen Begrenzungsflächen zwischen den einzelnen Windungen der radialen Wicklung angeordnet.In the case of another winding, not shown, the multiple parallel conductors can be used instead the axial direction, even in a radial direction offset by 90 ° be arranged side by side. In this case the protective insulation is on the vertical boundary surfaces between the individual turns of the radial winding arranged.
Bei einer in Figur 4b dargestellten Ausführungsvariante einer erfindungsgemäßen
Wicklung ist nur ein Teil der miteinander in Kontakt stehenden Seitenflächen zweier oder
mehrerer Mehrfachparallelleiter mit einer flächigen Schutzisolation 4 versehen.In a variant of an embodiment of the invention shown in FIG. 4b
Winding is only a part of the side surfaces of two or two that are in contact with each other
several multiple parallel conductors with a flat
In Figur 5 ist eine Wicklung 6 für einen Transformator dargestellt, welche durch einen als
sogenannten Drilleiter ausgebildeten Mehrfachparallelleiter 7 hergestellt wird, der aus
einer großen Anzahl von Teilleitern 2 besteht.In Figure 5, a winding 6 is shown for a transformer, which by a
so-called drill conductor trained multiple parallel conductor 7 is made of
a large number of
Bei dem dargestellten Ausführungsbeispiel sind die einzelnen Windungen des Mehrfachparallelleiters 7 in axialer Richtung übereinander angeordnet, wobei eine Anzahl von Windungen unmittelbar miteinander in Kontakt steht und eine Anzahl von Windungen mittels (nicht dargestellten) Distanzstücken voneinander beabstandet ist, um zwischen den Windungen Kühlkanäle für das Kühlmedium, z. B. Öl, ausbilden zu können, welche in Figur 5 mittels Pfeilen dargestellt sind.In the illustrated embodiment, the individual turns of the Multiple parallel conductors 7 arranged one above the other in the axial direction, a number of turns is in direct contact with each other and a number of turns is spaced from each other by means of (not shown) spacers in order to between the turns cooling channels for the cooling medium, for. B. oil to be able to train, which in Figure 5 are represented by arrows.
Die erfindungsgemäß ausgebildeten Mehrfachparallelleiter 7 sind so angeordnet, daß
zumindest an einer der horizontalen Begrenzungsflächen, über welche die einzelnen
Windungen unmittelbar miteinander in Kontakt stehen, zumindest ein
Mehrfachparallelleiter 7 mit einer Schutzisolation 4 versehen ist.The multiple parallel conductors 7 designed according to the invention are arranged such that
at least on one of the horizontal boundary surfaces over which the individual
Turns are in direct contact with each other, at least one
Multiple parallel conductor 7 is provided with
Natürlich können auch solche Mehrfachparallelleiter 7, welche mit benachbarten
Windungen nicht unmittelbar in Kontakt stehen, ebenso mit einer Schutzisolation 4 gemäß
der vorliegenden Erfindung ausgestattet sein, um die mechanische Stabilität und die
elektrische Spannungsfestigkeit des Mehrfachparallelleiters zu erhöhen. Ein solcher
Mehrfachparallelleiter ist in Figur 5 oben dargestellt.Of course, such multiple parallel conductors 7, which are connected to neighboring ones
Windings are not in direct contact, likewise with
Im Rahmen der vorliegenden Erfindung können Mehrfachparallelleiter weiters sowohl in radialer als auch in axialer Richtung miteinander verwickelt werden, z. B. in Vierergruppen (Fig. 4a, 4b). Für diesen Fall ist vorzugsweise eine L-förmige Schutzisolation vorgesehen (siehe auch Fig. 3), welche sich sowohl über eine horizontale, als auch eine vertikale Seitenfläche eines jeden Mehrfachparallelleiter erstreckt.Within the scope of the present invention, multiple parallel conductors can also be used both in radial as well as in the axial direction are involved, for. B. in groups of four (Fig. 4a, 4b). In this case, an L-shaped protective insulation is preferably provided (see also Fig. 3), which extends both horizontally and vertically Side surface of each multiple parallel conductor extends.
Die oben mit Bezug auf die Figuren beschriebenen Ausführungsbeispiele sind keineswegs einschränkend. Im Rahmen der vorliegenden Erfindung ist jede beliebige, für den Fachmann realisierbare Kombinationen der erläuterten Anordnungen und Merkmale umfaßt.The exemplary embodiments described above with reference to the figures are in no way restrictive. Within the scope of the present invention, any one for Combinations of the arrangements and features explained to those skilled in the art includes.
Claims (11)
- A multiple parallel conductor (1) for an electrical machine, specifically for a transformer, containing a plurality of adjacent conductor elements (2) preferably isolated from each other which are combined to form a bundle characterised in that a two-dimensional protective insulating material (4) which covers at least one surface portion of said bundle of conductor elements and does not cover at least another surface portion of said bundle of conductor elements is provided on the outer surfaces of said bundle of conductor elements wherein said surface portions are arranged adjacent to each other in relation to the longitudinal direction of said multiple parallel conductor and that a grid-like sheathing (5) such as a gridded tape, a thread cover or the like is provided thereon in at least some portions.
- The multiple parallel conductor as claimed in Claim 1 characterised in that said protective insulating material (4) includes one or multiple side faces of said bundle of conductor elements and the edge regions of the adjacent side faces which are not provided with a protective insulating material, which (the edge regions) face said side face(s) and, as appropriate, the edge regions between adjacent side faces provided with said protective insulating material.
- The multiple parallel conductor as claimed in Claim 1 or 2 characterised in that said protective insulating material (4) covers two adjacent side faces of said bundle of conductor elements.
- The multiple parallel conductor as claimed in Claim 1 characterised in that said two-dimensional protective insulating material (4) is an insulating material impregnatable with oil, preferably insulating paper.
- The multiple parallel conductor as claimed in Claim 1 characterised in that said conductor elements are enamelled.
- A method for the manufacture of a multiple parallel conductor (1) for an electrical machine, specifically a transformer, wherein individual conductor elements (2) which are preferably isolated from each other, are combined to form a bundle of conductor elements characterised in that a two-dimensional protective insulating material (4) which covers at least one side face but does not cover the entire circumference of said bundle of conductor elements is applied to said bundle of conductor elements and that said bundle of conductor elements including the protective insulating material is provided with a grid-like sheathing (5).
- The method as claimed in Claim 6 characterised in that an insulating material impregnatable with oil, preferably paper, is used for the preparation of the protective insulating material (4).
- The method as claimed in Claim 6 or 7 characterised in that said protective insulating material is agglutinated to said bundle of conductor elements.
- A winding for an electrical machine, specifically a transformer, containing at least one multiple parallel conductor (1, 7) as claimed in any one of Claims 1 to 5 wherein successive turns of said multiple parallel conductor (1, 7) or of parallel-wound multiple parallel conductors are arranged in an axially and/or radially adjacent manner characterised in that at least one side face of the side faces of adjacent turn portions of the multiple parallel conductor(s) (1, 7), which face each other, are provided with a two-dimensional protective insulating material (4).
- The winding as claimed in Claim 8 characterised in that said side faces provided with said two-dimensional protective insulating material (4) are in direct contact with each other.
- A transformer having a high-voltage winding and a low-voltage winding which is formed at least in some portions by the multiple parallel conductor as claimed in any one of Claims 1 to 6 characterised in that at least the top surface of said multiple parallel conductor (1, 7) of said low-voltage winding which faces the boundary surface between said high-voltage winding and said low-voltage winding comprises a two-dimensional protective insulating material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0032898A AT406923B (en) | 1998-02-24 | 1998-02-24 | MULTIPLE PARALLEL LADDER FOR ELECTRICAL MACHINES AND DEVICES |
| AT32898 | 1998-02-24 | ||
| PCT/AT1999/000014 WO1999044209A1 (en) | 1998-02-24 | 1999-01-21 | Multiple parallel conductor for electrical machines and devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1060485A1 EP1060485A1 (en) | 2000-12-20 |
| EP1060485B1 true EP1060485B1 (en) | 2001-10-24 |
Family
ID=3487669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99900823A Expired - Lifetime EP1060485B1 (en) | 1998-02-24 | 1999-01-21 | Multiple parallel conductor for electrical machines and devices |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6563413B1 (en) |
| EP (1) | EP1060485B1 (en) |
| AT (2) | AT406923B (en) |
| CA (1) | CA2320773C (en) |
| DE (1) | DE59900349D1 (en) |
| WO (1) | WO1999044209A1 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6724118B2 (en) * | 2001-06-13 | 2004-04-20 | Siemens Westinghouse Power Corporation | Electrical isolation layer system strand assembly and method of forming for electrical generator |
| DE102004013416A1 (en) * | 2004-03-18 | 2005-10-06 | Nexans | Main conductor for a capacitively controlled high voltage winding |
| JP4996086B2 (en) * | 2005-09-29 | 2012-08-08 | 株式会社東芝 | Mica tape and rotating electric coil using this mica tape |
| US7982133B2 (en) * | 2008-08-29 | 2011-07-19 | Pratt & Whitney Canada Corp. | Crack controlled resin insulated electrical coil |
| US8742814B2 (en) | 2009-07-15 | 2014-06-03 | Yehuda Binder | Sequentially operated modules |
| US8602833B2 (en) | 2009-08-06 | 2013-12-10 | May Patents Ltd. | Puzzle with conductive path |
| NL2005439C2 (en) * | 2010-10-01 | 2012-04-03 | Draad Nijmegen B V | A multiple parallel conductor for an electrical machine. |
| US9019718B2 (en) | 2011-08-26 | 2015-04-28 | Littlebits Electronics Inc. | Modular electronic building systems with magnetic interconnections and methods of using the same |
| US9597607B2 (en) | 2011-08-26 | 2017-03-21 | Littlebits Electronics Inc. | Modular electronic building systems with magnetic interconnections and methods of using the same |
| US11330714B2 (en) | 2011-08-26 | 2022-05-10 | Sphero, Inc. | Modular electronic building systems with magnetic interconnections and methods of using the same |
| CN102708949B (en) * | 2012-05-29 | 2013-09-25 | 江苏句容联合铜材有限公司 | Conductor composited in radially and axially parallel way for three times and processing method thereof |
| DE102015010636A1 (en) * | 2015-08-12 | 2017-02-16 | Karlsruher Institut für Technologie | Superconductive conductor and use of the superconductive conductor |
| US11616844B2 (en) | 2019-03-14 | 2023-03-28 | Sphero, Inc. | Modular electronic and digital building systems and methods of using the same |
| EP4086927B1 (en) * | 2021-05-05 | 2024-03-27 | Hitachi Energy Ltd | Coil for a transformer core |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE541636C (en) | 1932-01-14 | Siemens Schuckertwerke Akt Ges | Method for inserting Z-shaped insulation strips between adjacent electrical conductors of coils, in particular choke coils | |
| US3098113A (en) * | 1959-12-04 | 1963-07-16 | English Electric Co Ltd | Oil-immersed electrical apparatus having oil-impregnated main insulation partly covered by liquid-impervious material |
| US3202558A (en) * | 1960-12-23 | 1965-08-24 | Gen Electric | Process for insulating an electric coil |
| GB1103764A (en) | 1963-12-17 | 1968-02-21 | Pirelli General Cable Works | Improvements in or relating to composite conductors for heavy current windings |
| US3723797A (en) * | 1970-06-05 | 1973-03-27 | Asea Ab | Insulated coil for arrangement in a slot in the stator or rotor of an electrical machine |
| DE3031866A1 (en) * | 1980-08-23 | 1982-04-01 | Brown, Boveri & Cie Ag, 6800 Mannheim | LADDER BAR FOR ELECTRICAL MACHINE |
| DE3425982A1 (en) * | 1984-07-11 | 1986-01-23 | Siemens AG, 1000 Berlin und 8000 München | GRID OF AN ELECTRICAL MACHINE |
| JPS63172413A (en) | 1987-01-12 | 1988-07-16 | Mitsubishi Electric Corp | coil conductor |
| JPH04296316A (en) * | 1990-12-18 | 1992-10-20 | General Electric Co <Ge> | Heat-resistant resin composition and its product and manufacture |
| DE4244298C2 (en) * | 1992-12-28 | 2003-02-27 | Alstom | Electrical tape and process for its manufacture |
| DE59500312D1 (en) | 1994-05-10 | 1997-07-17 | Asta Elektrodraht Ges M B H | MULTIPLE PARALLEL LADDER FOR WINDINGS OF ELECTRICAL MACHINES AND DEVICES |
| DE19609260C2 (en) | 1996-02-28 | 2000-05-18 | Aeg Schorch Transformatoren Gm | Insulation arrangement for rectangular winding wires for the production of windings from disc coils for transformers and chokes |
| EP0872858A3 (en) * | 1997-04-17 | 1999-02-24 | Alcatel | Multiple parallel conductor for windings of electric devices and machines |
| US6051793A (en) * | 1998-05-22 | 2000-04-18 | Alcatel | Multiple parallel conductor featuring conductors partially wrapped with an aramid or other suitable wrapping material |
-
1998
- 1998-02-24 AT AT0032898A patent/AT406923B/en not_active IP Right Cessation
-
1999
- 1999-01-21 US US09/600,877 patent/US6563413B1/en not_active Expired - Lifetime
- 1999-01-21 AT AT99900823T patent/ATE207652T1/en active
- 1999-01-21 DE DE59900349T patent/DE59900349D1/en not_active Expired - Lifetime
- 1999-01-21 EP EP99900823A patent/EP1060485B1/en not_active Expired - Lifetime
- 1999-01-21 CA CA002320773A patent/CA2320773C/en not_active Expired - Lifetime
- 1999-01-21 WO PCT/AT1999/000014 patent/WO1999044209A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE59900349D1 (en) | 2001-11-29 |
| US6563413B1 (en) | 2003-05-13 |
| ATA32898A (en) | 2000-02-15 |
| CA2320773C (en) | 2004-08-03 |
| EP1060485A1 (en) | 2000-12-20 |
| WO1999044209A1 (en) | 1999-09-02 |
| ATE207652T1 (en) | 2001-11-15 |
| AT406923B (en) | 2000-10-25 |
| CA2320773A1 (en) | 1999-09-02 |
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