EP0092018B1 - Reactor, particularly air isolated reactor without magnetic core - Google Patents
Reactor, particularly air isolated reactor without magnetic core Download PDFInfo
- Publication number
- EP0092018B1 EP0092018B1 EP82890057A EP82890057A EP0092018B1 EP 0092018 B1 EP0092018 B1 EP 0092018B1 EP 82890057 A EP82890057 A EP 82890057A EP 82890057 A EP82890057 A EP 82890057A EP 0092018 B1 EP0092018 B1 EP 0092018B1
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- individual
- individual coils
- conductor
- conductors
- induction coil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
- H01F37/005—Fixed inductances not covered by group H01F17/00 without magnetic core
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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
- H01F27/2823—Wires
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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
- H01F27/2823—Wires
- H01F2027/2838—Wires using transposed wires
Definitions
- the invention relates to a choke coil, according to the preamble of claim 1.
- a choke coil is known from DE-C-577 650.
- a design that is characterized by the subdivision of the required total conductor cross section into a large number of individual wires insulated from one another is used in the case of choke coils in order to minimize their eddy current losses.
- Such choke coils are mainly used today in power engineering as compensation, filter and series choke coils.
- the different number of turns results in unequal axial winding dimensions, hereinafter referred to as single coil height, of the individual coils, as a result of which different voltage gradients occur in the axial direction on the parallel connected individual coils. These different voltage gradients electrically stress the construction elements lying between the adjacent individual coils.
- Eliminating this disadvantage would be possible by using different conductor dimensions to achieve the same individual coil heights of the individual coils, but is an extremely uneconomical solution due to the large number of relatively small quantities of conductor dimensions required, regardless of whether this occurs when using specialist conductors, round wires or stranded conductors ( DE-C-577 650).
- An embodiment is known in which, based on the principle of concentrically arranged individual coils connected in parallel, these individual coils are also divided into concentrically arranged layers of graduated number of turns.
- These layer windings consist of insulated individual wires and are wound directly on top of each other.
- the current distribution within such directly wound, parallel-connected layer windings requires, because of the extremely high mutual inductances, number of turns, the end turns of which only cover a fraction of the entire circumference, the ends of which are usually to be routed to a common connection via a current distribution circuit made of conductive material.
- a stranded conductor consisting of a number of insulated rectangular specialist conductors to divide the cross section within the individual coil.
- Each of these individual wires takes on different positions in the course of the stranded conductor along its axis and therefore also lies in different induction zones of the coil, but on average all the individual conductors are subject to the same induction conditions, so that there is a uniform current distribution over all of these individual wires of the stranded conductor.
- the stranded conductor offers the possibility of still achieving the same individual coil heights by using individual conductors of different dimensions with the same number of turns in individual cylinders, but, as already mentioned at the beginning, also provides an extremely uneconomical solution here due to the large number of relatively small quantities of conductor dimensions required
- the magnetic field in the edge zones of the winding has a high radial component, so that high eddy current losses are caused in the individual rectangular flat conductors of the wire conductor lying transversely thereto, and therefore an optimal economic utilization of the current conductors used is not possible.
- a choke coil according to the invention is characterized in that all individual coils consist predominantly of the same conductor bundles of the same structure and line cross section with electrically insulated and twisted individual conductors, which are pressed into rectangular shapes with different dimensions in the direction of the coil axis.
- the width ratios of the conductor bundles change in the individual coils in accordance with the number of turns decreasing from the inside to the outside.
- the axial voltage gradient in all individual coils is ensured by achieving the same individual coil heights, this being achieved only by pressing on different heights of one and the same conductor bundle.
- each round individual wire in the course of the conductor bundle takes on different positions to the bundle axis and therefore also passes through different induction zones of the choke coil, which leads to a homogeneous current distribution within the conductor bundle.
- the conductor bundle can consist of round wires insulated with lacquer, insulating powder coating, tape or foil.
- the conductor bundle pressed into the desired cross-sectional shape has a covering made of impregnable and permeable insulating material, in particular glass fiber fabric.
- the conductor bundle can have an electrically highly insulating insert on the side adjacent to the adjacent turn, under the sheath.
- a choke coil according to the invention is produced by winding the conductor bundle pressed into the required shape in the dry state onto a prepared winding mandrel, axial cooling gaps between the individual cylinders being eliminated by inserting strips, preferably made of glass fiber reinforced plastic.
- the fully wound and connected coil is subjected to impregnation as required after pre-drying and vacuum treatment, whereby the insulating resin used fills the spaces between the individual conductors of the bundle and mechanically connects adjacent coil windings and individual coils after curing in the hardening furnace.
- Fig. 1 shows the schematic structure of a choke coil of known construction with, for example, three individual coils, using the same conductor profiles with a height h in all individual coils.
- the current conductor 14 with the height h is used in all three individual coils 11, 12 and 13.
- Different individual coil heights H1, H2, H3 thus result in the three individual coils 11, 12, 13 as a result of the number of turns W1, W2, W3 decreasing from the inner individual coil 11 to the outer individual coil 13.
- There are cooling gaps 15 between the individual coils, the individual coils 11, 12, 13 are held between a press construction 16, which is also used in some cases as a current distribution cross.
- FIG. 2 shows, for example, a choke coil according to the invention, the individual coil height H being the same in all three individual coils 21, 22, 23, although the number of turns W1, W2, W3 of the individual coils decrease from the inner individual coil 21 to the outer individual coil 23.
- This is achieved by using conductor bundles 24a, 24b, 24c, which are pressed to different heights h1, h2, h3 in accordance with the number of turns W1, W2, W3 in the individual coils.
- FIG. 3 shows a section through a choke coil according to the invention and FIG. 4 explains the structure of the conductor bundle used for the individual coils and its pressing in a rectangular shape.
- the individual coils of the choke coil according to the invention are designated here by 31, 32, 33, only the lower end of the individual coils 31, 32, 33 resting on the press construction 36 being shown in the example.
- the conductors obtained for all three individual coils 31, 32, 33 by pressing a bundle of conductors 34 into the rectangular shapes 34a, 34c, 34b, 34c are distinguished by different heights h1, h2, h3.
- the conductor bundle 34 shown in simplified form in FIG. 4 and used as the starting product consists of a number of round individual conductors 341 provided with the insulation 342, the positions of which in the bundle of conductors have been designated 1, 2, 3, 4, 5, 6, 7. As can be seen, the individual conductors 1 to 7 change their position to the axis of the conductor bundle 34 continuously by twisting, twisting or cyclically interchanging.
- the pressed conductor bundles 34a, 34b, 34c (Fig. 3) are provided with a covering 344 made of impregnable and permeable insulating material.
- a covering 344 made of impregnable and permeable insulating material.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Description
Die Erfindung betrifft eine Drosselspule, gemäß Oberbegriff des Anspruches 1. Eine solche Drosselspule ist aus der DE-C-577 650 bekannt.The invention relates to a choke coil, according to the preamble of
Eine Bauart, die durch die Unterteilung des erforderlichen Gesamtleiterquerschnittes in eine Vielzahl gegeneinander isolierter Einzeldrähte gekennzeichnet ist, wird bei Drosselspulen angewendet, um deren Wirbelstromverluste zu minimieren. Derartige Drosselspulen werden heute vorwiegend in der Energietechnik als Kompensations-, Filter- und Reihen-Drosselspulen verwendet.A design that is characterized by the subdivision of the required total conductor cross section into a large number of individual wires insulated from one another is used in the case of choke coils in order to minimize their eddy current losses. Such choke coils are mainly used today in power engineering as compensation, filter and series choke coils.
Der grundsätzliche Aufbau von konzentrisch ineinander angeordneten, elektrisch parallel geschalteten Einzelspulen ist aus den BBC-Nachrichten Juli/August 1930 bekannt und in der DE-B-1 294541 beschrieben. Daraus geht hervor, daß die Stromaufteilung auf die parallel geschalteten Einzelspulen durch deren Windungszahl gesteuert wird, wobei vorwiegend die Windungszahl von der innen liegenden Einzelspule zu den äußeren Einzelspulen abnimmt. Die Anwendung gleicher Windungszahlen in allen Einzelspulen führt zu unterschiedlich wirksamen Einzelspulen-Induktivitäten und dadurch in der praktischen Anwendung zu ungenügender Stromverteilung.The basic structure of concentrically arranged, electrically parallel individual coils is known from the BBC news July / August 1930 and described in DE-B-1 294541. It follows from this that the current distribution to the parallel-connected individual coils is controlled by their number of turns, the number of turns predominantly decreasing from the inside individual coil to the outside individual coils. The use of the same number of turns in all individual coils leads to differently effective single coil inductances and thus to insufficient current distribution in practical use.
Bei Verwendung des gleichen Stromleiters ergeben sich durch die verschiedenen Windungszahlen ungleiche axiale Wicklungsabmessungen, im nachfolgenden kurz Einzelspulenhöhe genannt, der Einzelspulen, wodurch an den parallel geschalteten Einzelspulen unterschiedliche Spannungsgradienten in axialer Richtung auftreten. Durch diese unterschiedlichen Spannungsgradienten werden die zwischen den benachbarten Einzelspulen liegenden Konstruktionselemente elektrisch beansprucht.When using the same current conductor, the different number of turns results in unequal axial winding dimensions, hereinafter referred to as single coil height, of the individual coils, as a result of which different voltage gradients occur in the axial direction on the parallel connected individual coils. These different voltage gradients electrically stress the construction elements lying between the adjacent individual coils.
Ein Eliminieren dieses Nachteiles wäre durch die Verwendung unterschiedlicher Leiterdimensionen zur Erzielung gleicher Einzelspulenhöhen der Einzelspulen möglich, stellt aber durch die Vielzahl der dafür erforderlichen Leiterdimensionen relativ geringer Mengen eine äußerst unwirtschaftliche Lösung dar, gleichgültig, ob dies bei Verwendung von Fachleitern, Runddrähten oder Drilleitern erfolgt (DE-C-577 650).Eliminating this disadvantage would be possible by using different conductor dimensions to achieve the same individual coil heights of the individual coils, but is an extremely uneconomical solution due to the large number of relatively small quantities of conductor dimensions required, regardless of whether this occurs when using specialist conductors, round wires or stranded conductors ( DE-C-577 650).
Die Aufteilung des erforderlichen Gesamtleiterquerschnittes auf eine Anzahl parallel geschalteter Einzelspulen reicht nicht aus, um die Wirbelstromverluste in wirtschaftlichen Grenzen zu halten und es ist daher erforderlich, auch innerhalb einer derartigen Einzelspule den Leiterquerschnitt in eine Vielzahl isolierter Einzeldrähte zu unterteilen.The distribution of the required total conductor cross-section over a number of individual coils connected in parallel is not sufficient to keep the eddy current losses within economic limits and it is therefore necessary to subdivide the conductor cross-section into a plurality of insulated individual wires even within such an individual coil.
Es ist eine Ausführungsform bekannt, bei der in Anlehnung an das Prinzip konzentrisch angeordneter, parallel geschalteter Einzelspulen auch diese Einzelspulen in konzentrisch angeordnete Lagen abgestufter Windungszahlen aufgeteilt werden. Diese Lagenwicklungen bestehen aus isolierten Einzeldrähten und sind unmittelbar aufeinander gewickelt. Die Stromaufteilung innerhalb solcher, unmittelbar aufeinander gewickelter, parallel geschalteter Lagenwicklungen erfordert wegen der extrem hohen Gegeninduktivitäten Windungszahlen, deren Endwindungen nur über einen Bruchteil des gesamten Umfanges reichen, wobei üblicherweise deren Enden über ein Stromverteilungskreus aus Leitmaterial zum gemeinsamen Anschluß zu führen sind. Dieser Forderung kann mit gebräuchlichen 6-, 8- und sogar 12-armigen Stromverteilungskreuzen nicht entsprochen werden, einer Erhöhung der Armzahl sind jedoch fabrikatorische Grenzen gesetzt, so daß eine ungleichmäßige Stromaufteilung auf die einzelnen, aufeinander gewickelten Lagen in Kauf genommen werden muß. Dadurch ergibt sich eine nicht homogene Stromdichte innerhalb der einzelnen Lagenspulen, was zu einer unökonomischen Ausnützung der Leiter führt und gleichzeitig den Nachteil einer ungleichmäßigen Temperaturverteilung innerhalb einer Einzelspule nach sich zieht.An embodiment is known in which, based on the principle of concentrically arranged individual coils connected in parallel, these individual coils are also divided into concentrically arranged layers of graduated number of turns. These layer windings consist of insulated individual wires and are wound directly on top of each other. The current distribution within such directly wound, parallel-connected layer windings requires, because of the extremely high mutual inductances, number of turns, the end turns of which only cover a fraction of the entire circumference, the ends of which are usually to be routed to a common connection via a current distribution circuit made of conductive material. This requirement cannot be met with the usual 6-, 8- and even 12-arm power distribution crosses, but there are manufacturing limits to an increase in the number of arms, so that an uneven distribution of power to the individual, coiled layers must be accepted. This results in a non-homogeneous current density within the individual layer coils, which leads to an uneconomical use of the conductors and at the same time has the disadvantage of an uneven temperature distribution within an individual coil.
Bekannt ist auch, zur Unterteilung des Querschnittes innerhalb der Einzelspule einen aus einer Anzahl von isolierten rechteckigen Fachleitern bestehenden Drilleiter zu verwenden. Jeder dieser Einzeldrähte nimmt im Verlauf des Drilleiters unterschiedliche Lagen zu dessen Achse ein und liegt daher auch in unterschiedlichen Induktionszonen der Spule, doch unterliegen alle Einzelleiter im Durchschnitt gleichen Induktionsverhältnissen, so daß sich eine gleichmäßige Stromverteilung über alle diese Einzeldrähte des Drilleiters ergibt. Der Drilleiter bietet gleichzeitig die Möglichkeit, durch Einsatz von Einzelleitern unterschiedlicher Dimension, bei ungleichen Windungszahlen in Einzelzylindern, dennoch gleiche Einzelspulenhöhen zu erzielen, stellt aber, wie bereits eingangs erwähnt, durch die Vielzahl der dadurch erforderlichen Leiterdimensionen relativ geringer Mengen auch hier eine äußerst unwirtschaftliche Lösung dar. Darüber hinaus weist das magnetische Feld in den Randzonen der Wicklung eine hohe Radialkomponente auf, so daß in den dazu querliegenden einzelnen rechteckigen Flachleitern des Drilleiters hohe Wirbelstromverluste verursacht werden und damit eine optimale wirtschaftliche Ausnützung der eingesetzten Stromleiter nicht möglich ist.It is also known to use a stranded conductor consisting of a number of insulated rectangular specialist conductors to divide the cross section within the individual coil. Each of these individual wires takes on different positions in the course of the stranded conductor along its axis and therefore also lies in different induction zones of the coil, but on average all the individual conductors are subject to the same induction conditions, so that there is a uniform current distribution over all of these individual wires of the stranded conductor. At the same time, the stranded conductor offers the possibility of still achieving the same individual coil heights by using individual conductors of different dimensions with the same number of turns in individual cylinders, but, as already mentioned at the beginning, also provides an extremely uneconomical solution here due to the large number of relatively small quantities of conductor dimensions required In addition, the magnetic field in the edge zones of the winding has a high radial component, so that high eddy current losses are caused in the individual rectangular flat conductors of the wire conductor lying transversely thereto, and therefore an optimal economic utilization of the current conductors used is not possible.
Eine erfindungsgemäße Drosselspule zeichnet sich dadurch aus, daß sämtliche Einzelspulen vorwiegend aus gleichen Leiterbündeln gleichen Aufbaues und Leitungsquerschnittes mit elektrisch isolierten und verdrillten Einzelleitern bestehen, die in rechteckige Formen mit unterschiedlichen Abmessungen in Richtung der Spulenachse gepreßt sind. Die Breitenverhältnisse der Leiterbündel ändern sich in den Einzelspulen entsprechend den von innen nach außen abnehmenden Windungszahlen.A choke coil according to the invention is characterized in that all individual coils consist predominantly of the same conductor bundles of the same structure and line cross section with electrically insulated and twisted individual conductors, which are pressed into rectangular shapes with different dimensions in the direction of the coil axis. The width ratios of the conductor bundles change in the individual coils in accordance with the number of turns decreasing from the inside to the outside.
Durch Verwendung von isolierten runden Einzelleitern wird eine homogene Verteilung der Wirbelstromverluste erzielt, da für deren Höhe, unabhängig von der Richtung des magnetischen Feldes, immer die gleiche Einzelleiterdimension, nämlich der Durchmesser der Einzelleiter, maßgebend ist.By using insulated round single conductors, a homogeneous distribution of the eddy current losses is achieved, because for their height, regardless of the direction of the magnetic field, the same single conductor dimension, namely the diameter of the individual conductor, is always decisive.
Der axiale Spannungsgradient in allen Einzelspulen ist durch die Erzielung gleicher Einzelspulenhöhen sichergestellt, wobei dies nur durch Pressung auf unterschiedliche Höhe ein und desselben Leiterbündels erzielt wird. Durch die Verwendung vorwiegend nur gleicher Leiterbündel für die gesamte Drosselspule ist auch eine optimale Wirtschaftlichkeit in der Erzeugung desselben gegeben.The axial voltage gradient in all individual coils is ensured by achieving the same individual coil heights, this being achieved only by pressing on different heights of one and the same conductor bundle. By using predominantly only the same conductor bundle for the entire choke coil, there is also optimal economy in the production of the same.
Der Aufbau des ungepreßten Leiterbündels erfolgt in der Weise, daß ähnlich wie bei Drilleitern, jeder runde Einzeldraht im Verlauf des Leiterbündels unterschiedliche Lagen zur Bündelachse einnimmt und daher auch unterschiedliche Induktionszonen der Drosselspule durchläuft, was zu einer homogenen Stromaufteilung innerhalb des Leiterbündels führt.The construction of the unpressed conductor bundle is carried out in such a way that, as with twisted pair conductors, each round individual wire in the course of the conductor bundle takes on different positions to the bundle axis and therefore also passes through different induction zones of the choke coil, which leads to a homogeneous current distribution within the conductor bundle.
Diese Forderung wird sowohl durch Verseilen, Verdrehen, als auch durch zyklisches Vertauschen der runden Einzelleiter innerhalb des Leiterbündels erfüllt. Die elektrische Spannungsbeanspruchung der einzelnen Leiter innerhalb des Leiterbündels gegeneinander ist minimal und nur durch Unsymmetrien der induzierten Spannungen bedingt, die erforderliche Einzelleiterisolation muß daher auch nur geringe elektrische, jedoch wegen des Preßvorganges hohe mechanische Festigkeiten aufweisen.This requirement is met by stranding, twisting and cyclically interchanging the round individual conductors within the bundle of conductors. The electrical voltage stress of the individual conductors within the bundle of conductors against one another is minimal and only due to asymmetries of the induced voltages, the required individual conductor insulation must therefore only have low electrical, but high mechanical strength due to the pressing process.
Das Leiterbündel kann aus durch Lack, isolierende Pulverbeschichtung, Band oder Folie isolierten runden Drähten bestehen.The conductor bundle can consist of round wires insulated with lacquer, insulating powder coating, tape or foil.
Um die erforderliche Spannungsfestigkeit sowohl zwischen benachbarten Windungen als auch nach außen zu erzielen, weist das in die gewünschte Querschnittsform gepreßte Leiterbündel eine Umhüllung aus imprägnierfähigem und durchlässigem Isoliermaterial, insbesondere Glasfasergewebe, auf.In order to achieve the required dielectric strength both between adjacent windings and to the outside, the conductor bundle pressed into the desired cross-sectional shape has a covering made of impregnable and permeable insulating material, in particular glass fiber fabric.
Zusätzlich kann das Leiterbündel an einer der benachbarten Windung anliegenden Seite, unter der Umhüllung eine elektrisch hoch isolierende Einlage aufweisen.In addition, the conductor bundle can have an electrically highly insulating insert on the side adjacent to the adjacent turn, under the sheath.
Die Herstellung einer erfindungsgemäßen Drosselspule erfolgt durch Aufwickeln der in die erforderliche Form gepreßten Leiterbündel in trockenem Zustand auf einen vorbereiteten Wickeldorn, wobei axiale Kühlspalte zwischen den Einzelzylindern durch Einlegen von Leisten, vorzugsweise aus glasfaserverstärktem Kunststoff, ausgespart werden. Die fertig gewickelte und mit Anschlüssen versehene Spule wird je nach Erfordernis nach Vortrocknung und Vakuumbehandlung einer Imprägnierung unterzogen, wodurch das verwendete isolierende Kunstharz zugleich die Räume zwischen den Einzelleitern des Bündels füllt und benachbarte Spulenwindungen und Einzelspulen nach dem Aushärten im Härteofen mechanisch fest verbindet.A choke coil according to the invention is produced by winding the conductor bundle pressed into the required shape in the dry state onto a prepared winding mandrel, axial cooling gaps between the individual cylinders being eliminated by inserting strips, preferably made of glass fiber reinforced plastic. The fully wound and connected coil is subjected to impregnation as required after pre-drying and vacuum treatment, whereby the insulating resin used fills the spaces between the individual conductors of the bundle and mechanically connects adjacent coil windings and individual coils after curing in the hardening furnace.
Weitere Einzelheiten und Vorteile des Erfindungsgegenstandes gehen aus der nachfolgenden Zeichnungsbeschreibung hervor.Further details and advantages of the subject matter of the invention emerge from the following description of the drawings.
In der Zeichnung zeigt
Figur 1 schematisch im Längsschnitt den Aufbau einer bekannten Drosselspule,Figur 2 in gleicher Darstellungsweise wie Fig. 1 eine erfindungsgemäße Drosselspule,Figur 3 in größerem Maßstab einen Schnitt durch Einzelwicklungen einer erfindungsgemäßen Drosselspule undFigur 4 ein zum Aufbau der Spulen verwendetes Leiterbündel in Ansicht und mehreren Schnittdarstellungen.
- FIG. 1 shows schematically in longitudinal section the structure of a known choke coil,
- FIG. 2 shows a choke coil according to the invention in the same representation as FIG. 1,
- Figure 3 on a larger scale a section through individual windings of a choke coil according to the invention and
- FIG. 4 shows a conductor bundle used to build up the coils in a view and several sectional views.
Fig. 1 zeigt den schematischen Aufbau einer Drosselspule bekannter Bauweise mit beispielsweise drei Einzelspulen, unter Verwendung gleicher Leiterprofile mit einer Höhe h in allen Einzelspulen. Hierin ist der Stromleiter 14 mit der Höhe h in allen drei Einzelspulen 11, 12 und 13 verwendet. Somit ergeben sich in den drei Einzelspulen 11, 12, 13 infolge der von der inneren Einzelspule 11 zur äußeren Einzelspule 13 abnehmenden Windungszahlen W1, W2, W3 unterschiedliche Einzelspulenhöhen H1, H2, H3. Zwischen den Einzelspulen befinden sich Kühlspalte 15, die Einzelspulen 11, 12, 13 werden zwischen einer Preßkonstruktion 16 gehalten, die fallweise auch als Stromverteilungskreuz verwendet wird.Fig. 1 shows the schematic structure of a choke coil of known construction with, for example, three individual coils, using the same conductor profiles with a height h in all individual coils. The
Fig. 2 stellt beispielsweise eine Drosselspule erfindungsgemäßen Aufbaues dar, wobei die Einzelspulenhöhe H in allen drei Einzelspulen 21, 22, 23 gleich groß sind, obwohl die Windungszahlen W1, W2, W3 der Einzelspulen von der inneren Einzelspule 21 zur äußeren Einzelspule 23 abnehmen. Dies wird durch Verwendung von Leiterbündeln 24a, 24b, 24c erreicht, die entsprechend den Windungszahlen W1, W2, W3 in den Einzelspulen auf unterschiedliche Höhen h1, h2, h3 gepreßt sind. Zwischen den Einzelspulen befinden sich Kühlspalte 25, die gesamte Drosselspule wird durch eine Preßkonstruktion 26 gehalten, die fallweise auch als Stromverteilungskreuz verwendet wird.2 shows, for example, a choke coil according to the invention, the individual coil height H being the same in all three
Fig. 3 zeigt einen Schnitt durch eine erfindungsgemäße Drosselspule und Fig. 4 erläutert den Aufbau des für die Einzelspulen verwendeten Leiterbündels und dessen Pressung in rechteckige Form.FIG. 3 shows a section through a choke coil according to the invention and FIG. 4 explains the structure of the conductor bundle used for the individual coils and its pressing in a rectangular shape.
Mit 31, 32, 33 sind hier die Einzelspulen der erfindungsgemäßen Drosselspule bezeichnet, wobei im Beispiel nur das untere, an der Preßkonstruktion 36 anliegende Ende der Einzelspulen 31, 32, 33 dargestellt ist. Die für alle drei Einzelspulen 31, 32, 33 durch Pressung eines Leiterbündels 34 in die rechteckigen Formen 34a, 34c, 34b, 34c erhaltenen Leiter zeichnen sich durch unterschiedliche Höhen h1, h2, h3 aus.The individual coils of the choke coil according to the invention are designated here by 31, 32, 33, only the lower end of the
Das in Fig. 4 vereinfacht gezeichnete, hiefür als Ausgangsprodukt verwendete Leiterbündel 34 besteht aus einer Anzahl, mit der Isolation 342 versehenen, runder Einzelleiter 341, deren Positionen im Leiterbündel mit 1, 2, 3, 4, 5, 6, 7 bezeichnet wurden. Wie ersichtlich ist, ändern die Einzelleiter 1 bis 7 durch Verdrillung, Verdrehung oder zyklische Vertauschung ihre Lage zur Achse des Leiterbündels 34 kontinuierlich.The
Die gepreßten Leiterbündel 34a, 34b, 34c (Fig. 3) sind mit einer Umhüllung 344 aus imprägnierfähigem und durchlässigem Isoliermaterial versehen. Durch Imprägnierung mit einem isolierenden, aushärtenden Kunstharz werden sowohl die Zwischenräume 345 zwischen den runden Einzelleitern gefüllt, als auch nach dem Aushärten benachbarte Spulenwindungen und Einzelspulen mit den die Kühlspalte 35 bildenden Konstruktionsteilen mechanisch fest verbunden. Zur Erhöhung der Spannungsfestigkeit zwischen den Windungen innerhalb einer Einzelspule ist unter der Umhüllung 344, an einer der benachbarten Windung anliegenden Seite, eine elektrisch hoch isolierende Einlage 343 angeordnet.The pressed
Claims (5)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT82890057T ATE17287T1 (en) | 1982-04-21 | 1982-04-21 | CHOKE COIL, ESPECIALLY DRY INSULATED CHOKE COIL WITHOUT IRON CORE. |
| DE8282890057T DE3268234D1 (en) | 1982-04-21 | 1982-04-21 | Reactor, particularly air isolated reactor without magnetic core |
| EP82890057A EP0092018B1 (en) | 1982-04-21 | 1982-04-21 | Reactor, particularly air isolated reactor without magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP82890057A EP0092018B1 (en) | 1982-04-21 | 1982-04-21 | Reactor, particularly air isolated reactor without magnetic core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0092018A1 EP0092018A1 (en) | 1983-10-26 |
| EP0092018B1 true EP0092018B1 (en) | 1986-01-02 |
Family
ID=8190173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82890057A Expired EP0092018B1 (en) | 1982-04-21 | 1982-04-21 | Reactor, particularly air isolated reactor without magnetic core |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0092018B1 (en) |
| AT (1) | ATE17287T1 (en) |
| DE (1) | DE3268234D1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006024057A1 (en) | 2004-09-03 | 2006-03-09 | Coil Innovation Gmbh | Method and device for producing a coil winding |
| WO2010000005A1 (en) | 2008-06-30 | 2010-01-07 | Coil Innovation Gmbh | Inductance coil for electric power grids having reduced sound emission |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2628882B1 (en) * | 1988-03-18 | 1995-02-17 | Electro Mec Nivernais | ELECTRIC COIL WITH FIRE SAFETY, AND ELECTRIC APPARATUS PROVIDED WITH SUCH A COIL |
| FR2821480B1 (en) * | 2001-02-23 | 2003-04-18 | Alstom | MULTI-STRANDED MUTUALLY INSULATED CONDUCTOR CABLE WITH CERTAIN NON-ISOLATED INDIVIDUALLY STRANDS, AND STRUCTURAL COIL INCORPORATING AT LEAST ONE SUCH CABLE |
| DE102014218874A1 (en) * | 2014-09-19 | 2016-03-24 | Forschungszentrum Jülich GmbH | High quality coil |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE577650C (en) * | 1930-05-09 | 1933-06-02 | Aeg | Magnetic coil for large currents, which consists of several concentrically arranged partial coils with common supply or discharge lines |
| FR1198126A (en) * | 1958-06-02 | 1959-12-04 | Acec | Winding conductor for battleship-nested transformers |
| FR1315930A (en) * | 1961-12-15 | 1963-01-25 | Comp Generale Electricite | Winding for transformer or choke coil |
| FR2327617A1 (en) * | 1975-10-10 | 1977-05-06 | Tocco Stel | Wideband HF power transformer with high transformation ratio - has closed, high permeability ferrite magnetic core with three limbs |
| CH591151A5 (en) * | 1975-11-12 | 1977-09-15 | Bbc Brown Boveri & Cie | |
| US3991394A (en) * | 1975-12-17 | 1976-11-09 | General Electric Company | Helical inductor for power lines and the like |
| JPS609650B2 (en) * | 1980-03-05 | 1985-03-12 | 株式会社日立製作所 | High series capacity transformer winding |
-
1982
- 1982-04-21 AT AT82890057T patent/ATE17287T1/en active
- 1982-04-21 DE DE8282890057T patent/DE3268234D1/en not_active Expired
- 1982-04-21 EP EP82890057A patent/EP0092018B1/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006024057A1 (en) | 2004-09-03 | 2006-03-09 | Coil Innovation Gmbh | Method and device for producing a coil winding |
| AT501074B1 (en) * | 2004-09-03 | 2007-05-15 | Coil Innovation Gmbh | METHOD AND DEVICE FOR PRODUCING A COIL DEVELOPMENT |
| WO2010000005A1 (en) | 2008-06-30 | 2010-01-07 | Coil Innovation Gmbh | Inductance coil for electric power grids having reduced sound emission |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3268234D1 (en) | 1986-02-13 |
| EP0092018A1 (en) | 1983-10-26 |
| ATE17287T1 (en) | 1986-01-15 |
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