DE1563246C

DE1563246C - Layer winding for transformers

Info

Publication number: DE1563246C
Application number: DE19661563246
Authority: DE
Inventors: Jan Dipl Ing 7000 Stuttgart Jakubowski
Original assignee: Licentia Patent Verwaltungs GmbH, 6000 Frankfurt
Priority date: 1966-09-15
Filing date: 1966-09-15
Publication date: 1973-06-28

Description

3 43 4

Einzellagen ausgeführt und gleichsinnig geschaltet darin, daß die Beanspruchung zwischen benachbarsind, wobei die Verbindungen zwischen den Doppel- ten Lagen an den Stellen 23 höchstens der dreifachen lagen und den Einzellagen als Umleitungen ausge- Lagenspannung entspricht bzw., wenn ein Eingangsführt sind, die im Bereich der inneren Doppellagen schild 25 wie eingezeichnet vorhanden ist, nur noch axial entgegengesetzt von der Hochspannungs- S zwischen Schild und der benachbarten äußeren Lage klemme liegen. 17 eine Beanspruchung entsprechend vier in ReiheIndividual layers designed and connected in the same direction in such a way that the stress is between adjacent ones, the connections between the double layers at locations 23 being at most threefold and corresponds to the individual layers as diversions or if an input leads are, which is present in the area of the inner double-layer shield 25 as shown, only axially opposite from the high voltage S between the shield and the adjacent outer layer clamp lie. 17 a load corresponding to four in a row

Beispiele der erfindungsgemäßen Wicklungsanord- geschalteten Lagen auftreten kann, so daß hier derExamples of the layers connected to the winding arrangement according to the invention can occur, so that here the

nung zeigen die F i g. 6 bis 9. Diese weisen die Vor- gesamte radiale Wicklungsaufbau kleiner wird, wasThe F i g. 6 to 9. These show the overall radial winding structure being smaller, what

teile der bekannten Wicklungsanordnung gemäß bei sehr hohen Reihenspannungen von Bedeutungparts of the known winding arrangement according to at very high series voltages of importance

Fig. 4 auf. Durch die vorgeschlagene Kombination io ist.Fig. 4. The combination proposed is io.

von Doppellagen innerhalb und von Einzellagen Auch bei der Herstellung der erfindungsgemäßenof double layers within and of individual layers Also in the production of the invention

außerhalb der Eingangslage erreicht man jedoch, Wicklungsanordnung ergeben sich gegenüber be-outside of the input position one reaches, however, the winding arrangement results compared to

daß durch die oberen an der Ausleitungsseite befind- kannten Anordnungen wesentliche Vorteile. So kannthat through the upper arrangements on the discharge side, there are significant advantages. So can

liehen Verbindungen 13 zwischen benachbarten, in- die Wicklung an der Ausleitungsseite zumindest bisborrowed connections 13 between adjacent, in the winding on the discharge side at least up to

nerhalb der Eingangslage liegenden Lagen die obe- 15 zur Eingangslage 1 durchgehend gewickelt werden,Layers lying within the entry layer that are continuously wound at the top 15 to the entry layer 1,

ren Umleitungen 10, die in F i g. 4 dargestellt sind, was zu einer Einsparung an Lötstellen und zu einerren diversions 10 shown in FIG. 4 are shown, which leads to a saving in soldering points and to a

eingespart werden können. Denn diese Wicklungsan- Verkürzung der Stillstandzeiten der Wickelmaschinecan be saved. Because this winding shortening of the downtimes of the winding machine

Ordnungen gewährleisten weiterhin, daß zwischen be- führt.Regulations continue to ensure that between.

nachbarten Lagen (mit Ausnahme zur Eingangslage) Einige weitere Beispiele der erfindungsgemäßen maximal drei Lagenspannungen auftreten können. 20 Ausführung der Lagenwicklung mit Mitteneingang Durch das Fehlen der bei Umleitungen erforderli- sind in den F i g. 7, 8 und 9 dargestellt,
chen Umrisse 11 (F i g. 4) kann die Ausleitung 14 F i g. 7 und 8 zeigen eine Kombination der Ausohne Schwierigkeiten von der Hochspannungs- führungen gemäß F i g. 5 und 6, wobei dort die Einklemme nach außen geführt werden. Weiterhin ergibt gangslagen etwa in der geometrischen Wicklungssich dadurch eine Beschleunigung des Ölumlaufes 25 mitte liegen.Adjacent layers (with the exception of the initial layer) Some further examples of the maximum three layer stresses according to the invention can occur. 20 Execution of the layer winding with a center entrance Due to the lack of the necessary for diversions, the F i g. 7, 8 and 9 shown,
Chen outline 11 (FIG. 4) can lead to 14 F i g. 7 and 8 show a combination of the without difficulties of the high-voltage guides according to FIG. 5 and 6, with the pinch being led to the outside there. Furthermore, gear positions approximately in the geometric winding result in an acceleration of the oil circulation 25 in the middle.

und damit eine wesentlich verbesserte Kühlung. Bei Fig. 9 zeigt ein Beispiel mit unsymmetrischer AnVerwendung der keilförmigen Lagenisolierung bei Ordnung der Eingangslage. Dort werden bei insge-Doppellagen, die weitgehend der tatsächlichen Bean- samt zehn Lagen nur zwei Umleitungen 21 benötigt, spruchung innerhalb der Lagen angepaßt ist, ergibt wobei bei Ausführungen mit Schild 25, wie eingesich eine Verringerung der Radialabmessungen der 30 zeichnet, nur ein Lagenabstand 17 für die Beanspru-Wicklung. chung längs der vier in Reihe geschalteten Lagenand thus a significantly improved cooling. Fig. 9 shows an example with unbalanced use the wedge-shaped layer insulation with order of the input layer. There are in total double layers, which largely requires only two diversions 21 of the actual ten layers, stress is adapted within the layers, resulting in versions with shield 25, as einich a reduction in the radial dimensions of FIG. 30 shows only one layer spacing 17 for the stress winding. chung along the four layers connected in series

Zwar werden für die außenliegenden Lagen 19 vorgesehen werden muß.It is true that 19 must be provided for the outer layers.

wieder einige Umleitungen 21 benötigt, die hierzu er- Entsprechend der benötigten Lagenzahl und denAgain some diversions 21 are required, which for this purpose correspond to the required number of layers and the

forderliche Lagenisolierung endet jedoch in nach Reihenspannungen der benachbarten Wicklungen 26However, the required layer insulation ends in series voltages of the adjacent windings 26

außen gerichteten Umrissen 22, was die Herausfüh- 35 und 27 (Fig. 5) wird die eine oder die andere Aus-outwardly directed outlines 22, what the leads 35 and 27 (Fig. 5) is one or the other

rung der Ausleitung 14 in keiner Weise behindert. führung der vorgeschlagenen Wicklungsanordnungtion of the diversion 14 is not hindered in any way. leadership of the proposed winding arrangement

Der Vorteil dieser Ausführung (Fig.6) besteht gewählt.The advantage of this version (Fig. 6) is selected.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 21 2

d. that is, the end of one layer is right next to that

Claim: Beginning of the next layer, so that the

Winding a zigzag current direction

Layer winding for transformers, which comes at a cost. F i g. 2 shows the version with a zygangslage approximately in the middle of one made of rear-5 cylindrical layer insulation 4, d. i.e., the insulation Other layers of existing winding must be used for the maximum voltage between two load ranges is arranged, wherein the layers are designed alternately, the on of the layer connection selnd inside and outside of the input layer in each case opposite end rests, so that they are rearranged are characterized by latiν is poorly exploited.

net that the radially inside of the input layer applies (1) lying layers in each case as double layers (20) the so-called wedge-shaped layer insulation 5, while the radially outside according to FIG. 3, in which the largest isolator Layers (19) lying in the initial layer all or at least one functional strength at the point of the highest potential difference. Part of it is arranged as being in the same direction, while the insulation to the lacquered, diverted connected individual layers is kept thinner and thinner.
are performed and connected in the same direction, where In F i g. 4 shows a layer winding with the connections between the double layers in the middle, that is, the approximately middle layer 1 (20) and the individual layers are designed as diversions (21) from an arrangement of concentric layers that are in the area of the inner double layers High-voltage connection connected to the pellets axially opposite from the high-voltage 20 in an even circulation alternating outside and guiding clamp (Figs. 6, 7, 8 and 9). The following layers are connected in series. This creates radial space for the scattering channels in particular? saved, however, the execution of the

Diversions 10 in connection with the outlines 11

25 and the barriers necessary for recovery 12

relatively complex and expensive.

The present invention relates to a layer winding for transformers whose input (Swiss patent specification 207 588), in which from position approximately in the middle of a winding strand consisting of one behind the other, one in the middle of a winding phase consisting of layers connected one behind the other. 30 th layers of existing winding strand is arranged lying, the layers alternating within the connection layer starting from and outside the input layer on both sides of the connection layer following layers each as Dop (Swiss Patent 397 066). Pellagen executed and so one behind the other. 1 to 5 are some common circuits that are shown on a double layer of small-diameter windings for transformers with a higher voltage than that of the connection layer. those with a larger diameter follow. 1 to 3 show layer windings with In between adjacent double layers, ie the innermost of the concentric La voltage differences up to the fourfold layer brackets is connected to the high voltage input 6, so that with such windings a very pants, so that the scattering channel 7 is required for the full upcoming 40 forth isolation effort. Must be measured in a certain tension. This design limits this isolation effort by using the wedge-shaped lugs shown in Fig. 3, since the control winding almost exclusively reduces potential insulation, so that one is tially at the star point and because of the many winding structures receives, as shown in FIG. 5 is shown. Connection lines to the tap changer are concentrated on the 45 Here the middle entry layer 1 is arranged on the upright frame on the outside of the winding. The connection feedthrough 14 is connected to which a layer winding must be imagined as an accumulation of concentric cylinders alternately inside and outside one behind the other, followed by the double layers 18 and 20. The connection terms "inside" and "outside" a location determination according to 13 between two layers of a double layer of the respective layer cylinder with respect to the 50 are on the side of the high voltage supply line at the input layer as a central entrance, i.e. in the middle. Mark the places with the highest stress levels, concentric cylinders. Claim 17 corresponding to the fourfold layers -... Fig. 1 shows ... the so-called diverted layer voltage requires the greatest thickness 16 of the wedge-shaped winding, in which all layers have the same layer insulation 15. To improve the current flow, what 55 surge voltage distribution within the winding is achieved in that the end of the one layer with the beginning of the layer next between the input layer 1 and the next layer in the current flow via a fourth layer outside the winding, a protective sleeve 25 is arranged,
call forwarding 2 is connected. The task of the arrangement is ^: The above-mentioned large span has the advantage that over the entire axial layer stresses and the associated length there is the same voltage difference between two insulation costs. a layer winding for adjacent layers prevails and a layer insulated transformer of the type mentioned at the beginning for vertion of a cylindrical cross section is optimally avoided.

can be used. For this, however, the diversions have to be carried out.

with their varying potentials outside, the fact that the radially inside the input position lies

the winding can be housed and insulated. 65 lowing layers each designed as double layers

■ Fig.2 shows the so-called continuously switched, while the radially outside the input position

Layer winding in which all or at least some of the adjacent layers are located

Layers are traversed by the current in opposite directions, as redirected connected in the same direction