EP0782755A1 - Power supply conductor from the conductive foil of the foil winding of a power transformer - Google Patents

Power supply conductor from the conductive foil of the foil winding of a power transformer

Info

Publication number
EP0782755A1
EP0782755A1 EP95930376A EP95930376A EP0782755A1 EP 0782755 A1 EP0782755 A1 EP 0782755A1 EP 95930376 A EP95930376 A EP 95930376A EP 95930376 A EP95930376 A EP 95930376A EP 0782755 A1 EP0782755 A1 EP 0782755A1
Authority
EP
European Patent Office
Prior art keywords
power supply
foil
supply conductor
end pieces
flag
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95930376A
Other languages
German (de)
French (fr)
Other versions
EP0782755B1 (en
Inventor
Peter Henninger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6528815&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0782755(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0782755A1 publication Critical patent/EP0782755A1/en
Application granted granted Critical
Publication of EP0782755B1 publication Critical patent/EP0782755B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • H01F27/2847—Sheets; Strips
    • H01F27/2852—Construction of conductive connections, of leads

Definitions

  • the invention relates to a laminated current supply conductor of a power transformer with an air-cooled film winding wound from a strip-shaped conductor film, the film end of which forms a plurality of tab-like end pieces due to slits running in the longitudinal direction of the film, which end pieces form one opposite the film longitudinal direction bent stack of the power supply conductor are folded.
  • a power supply conductor is from "Electrical Equipment", Jul./Aug. 1974, pages 60 to 62.
  • Rail no longer holds useful electricity; that is, for electricity transportation it no longer makes any significant contribution in the film.
  • Only eddy currents which generate additional losses are induced in the more distant part of the power supply rail.
  • Particularly high eddy currents are induced in the supply rails at the winding edges by the foil winding.
  • the film winding shows greatly increased current densities due to the current displacement effect.
  • This increased flow through the film winding induces eddy currents in the cross-sectional plane of the supply rails and thus additional losses. If the sum of the losses in the area of the supply lines becomes too large in the case of highly utilized transformers, an attempt is made to solve this problem by changing the conductive cross section or by changing the electrical conductivity due to the use of different material or by improving the cooling . Combined measures are also used for this.
  • This object is achieved in that the flag-like, folded end pieces of the conductor stack are mutually insulated at least in the region of the winding edge of the unslit film part.
  • End pieces need only be guided a few centimeters from the line of the elongated long side of the unslit film part to the outside in isolation; further outside (outside the area of the film winding) one can do without insulation of the flag-like end pieces and carry them on without insulation or let them pass into a massive supply rail.
  • Figure 6 shows another special embodiment of such a power supply conductor.
  • Figure 7 shows a diagram of the current drop on a corresponding power supply conductor.
  • connection foil For an effective reduction of the power loss in a power supply conductor and an associated connection foil of the foil winding of a power transformer, there is one 4 Lamination of the cross section of the power supply conductor and its shortening to an electrically effective length are provided.
  • a controlled introduction of current into the connection foil reduces the maximum current densities that occur in the winding foil; and thus the losses in the connection area of the film are also reduced.
  • FIG. 1 shows the end of a known band-shaped conductor foil 2 with a width B.
  • the flag-like end pieces 3i all have approximately the same width b. If necessary, they can also have different widths.
  • the width b of the end pieces 3i is preferably chosen so that end-side edge zones 2a and 2b of the connecting foil 2 remain free.
  • the flag-like end pieces 3i can advantageously be arranged symmetrically with respect to the extended center line 5 of the connecting film 2.
  • the length Li of the individual end pieces 3i can be chosen so that after folding the end ends 6i of the end pieces 3i form approximately a common end face of a stack of the current supply conductor.
  • the shortest end piece 3a is the first one that is to be folded, and also the first one seen in the direction of current conduction that enables the current to pass from the current supply conductor to the connecting foil 2. According to the representation of the figure, it is to be seen as the "uppermost" end piece.
  • This uppermost end piece 3a is folded upward according to FIG. 2 with an angle of 90 ° and with the formation of a folding area 11a.
  • this end piece now designated 3a ', is to be at least partially insulated on its upper flat side F, on which the next flag-like end piece (3b) will later lie.
  • This flat side F can be covered with an insulation film 7a.
  • the insulation film can have a somewhat larger width b 'than the associated flag-like end piece 3a'; the widths b 'and b of insulation film 7a and end piece 3a' can also be the same.
  • the insulation foil 7a is intended to cover at least one area 12 around the elongated lateral edge 21 of the connecting foil 2 (or around its elongated lateral longitudinal edge).
  • the two side edges of the region 12 are advantageously a few centimeters away from the extended edge 21.
  • the insulating film 7 advantageously extends up to the folding area 11a of the end piece 3a (inclusive) and preferably beyond it, while still covering the folding area 11b of the next end piece (3b). If necessary, the underside of the end piece 3a 'can also be provided with an insulating film, at least in its folding area 11a.
  • the second flag-like end piece 3b is then folded upwards accordingly, so that the two end pieces 3a 'and 3b' together with the iso present between them lation film 7a, for example, come to lie congruently one above the other. Then insulation is again carried out according to FIG. 3.
  • the flag-like end pieces 3i only have to be guided in isolation from one another up to a few centimeters outside the edge region 12 of the film winding; after that, there is no need for insulation between the end pieces and this can be continued without insulation or can be passed into a massive feed rail.
  • the distribution of the total conductor current among the individual flag-like end pieces is influenced by the different length and thus by the electrical resistance of the respective end pieces and by the different axial connection positions of the end pieces on the connecting foil. These connection positions lay the different
  • FIG. 7 shows such a drop in current in a diagram.
  • the current I is plotted in the ordinate direction in the current supply conductor at its end on the film side and in the abscissa direction its length x at this end in arbitrary units.
  • the respective extent a (3i ') of the individual flag-like end pieces 3i' is marked by the corresponding reference number of the respective end piece.
  • the extent a (2) of the area of the connecting foil 2 of the undervoltage winding is entered accordingly.
  • the controlled, relatively uniform current drop at the end of the power supply line can be seen from the curve. This increases current density increases in the connecting foil and consequently additional losses avoided.
  • a lateral shift can take place, for example, by a subsequent material removal on the left and / or right-hand longitudinal edges of the end pieces.
  • the measures according to the invention essentially relate to the configuration of a power supply line of a power transformer with a foil winding.
  • Corresponding power transformers are known in principle, so that their explicit representation has been omitted in the drawings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Dc-Dc Converters (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

PCT No. PCT/DE95/01230 Sec. 371 Date Mar. 20, 1997 Sec. 102(e) Date Mar. 20, 1997 PCT Filed Sep. 8, 1995 PCT Pub. No. WO96/09631 PCT Pub. Date Mar. 28, 1996The power supply conductor of a power transformer with foil winding is formed with a plurality of flag-shaped end pieces at one end due to slots running in the longitudinal direction of the foil, which flag-shaped end pieces are folded to form a stack kinked in relation to the longitudinal direction of the foil. The flag-shaped, folded end pieces of the conductor stack must be insulated at least in the area of the edge of the unslotted foil from one another, for example, using insulating foils.

Description

Beschreibung description
Stromzuführungsleiter aus der Leiterfolie der Folienwicklung eines LeistungstransformatorsPower supply conductor from the conductor foil of the foil winding of a power transformer
Die Erfindung bezieht sich auf einen lamellierten Stromzufüh¬ rungsleiter eines Leistungstransformators mit einer aus einer bandförmigen Leiterfolie gewickelten, luftgekühlten Folien¬ wicklung, deren Folienende aufgrund von in Längsrichtung der Folie verlaufenden Schlitzungen mehrere fahnenartigen End¬ stücke bildet, welche zu einem gegenüber der Folienlängsrich¬ tung abgeknickten Stapel des Stromzuführungsleiters gefaltet sind. Ein derartiger Stromzuführungsleiter ist aus "Electrical Equipment", Jul./Aug. 1974, Seiten 60 bis 62 be- kannt.The invention relates to a laminated current supply conductor of a power transformer with an air-cooled film winding wound from a strip-shaped conductor film, the film end of which forms a plurality of tab-like end pieces due to slits running in the longitudinal direction of the film, which end pieces form one opposite the film longitudinal direction bent stack of the power supply conductor are folded. Such a power supply conductor is from "Electrical Equipment", Jul./Aug. 1974, pages 60 to 62.
Bei hoch ausgelasteten, luftgekühlten Leistungstransforma¬ toren mit sogenannten Unterspannungswicklungen aus bandför¬ migen Leiterfolien kann es leicht zu Übertemperaturen an Stromzuleitungen kommen, welche in einem Anschlußbereich mit der Leiterfolie der Wicklung verbunden sind. Bei einer be¬ kannten Ausführungsform eines solchen Leistungstransformators ist als Stromzuführung eine Leitungsschiene vorgesehen, an welche seitlich die Leiterfolie der Unterspannungswicklung angeschweißt wird. Dabei stellt sich eine Stromumlenkung in die Folie frei nach den induzierten Spannungen und Wider¬ standsverhältnissen ein. Dies führt zu einem exponentiellen Abfallen des Stromes in der Stromzuleitung, wenn man in Stromzuführungsrichtung von der Schiene auf die Folie, und zwar von der ersten Verbindungsstelle (Ecke) der Folie mit der Schiene zu der gegenüberliegenden Ecke der Folie sieht. Dadurch treten in der ersten Ecke der Folie sehr hohe Strom¬ dichten auf, die zu starken lokalen thermischen Belastungen führen. Durch den exponenziellen Abfall des Stromes in der Stromzuleitungsschiene trägt die entferntere Hälfte derIn the case of high-capacity, air-cooled power transformers with so-called undervoltage windings made of band-shaped conductor foils, overtemperature in the power supply lines can easily occur, which are connected to the conductor foil of the winding in a connection area. In a known embodiment of such a power transformer, a line rail is provided as the power supply, to which the conductor foil of the undervoltage winding is welded on the side. A current deflection into the film occurs freely according to the induced voltages and resistance conditions. This leads to an exponential drop in the current in the power supply line when looking from the rail onto the film in the direction of current supply, from the first connection point (corner) of the film with the rail to the opposite corner of the film. As a result, very high current densities occur in the first corner of the film, which lead to strong local thermal loads. Due to the exponential drop in current in the power supply rail, the more distant half carries the
Schiene faßt keinen Nutzstrom mehr; d.h., zum Stromtransport in der Folie liefert sie keinen nennenswerten Beitrag mehr. In dem entfernteren Teil der Stromzuleitungsschiene werden nur Wirbelströme induziert, die zusätzliche Verluste erzeu¬ gen. Besonders hohe Wirbelströme werden in den Zuleitungs- schienen an den Wicklungsrändern durch die Folienwicklung in¬ duziert. Hier zeigt die Folienwicklung stark erhöhte Strom¬ dichten durch den Stromverdrängungseffekt. Diese erhöhte Durchflutung der Folienwicklung induziert Wirbelströme in der Querschnittsebene der Zuleitungsschienen und damit zusätzli- ehe Verluste. Wenn bei hoch ausgelasteten Transformatoren die Summe der Verluste im Bereich der Zuleitungen zu groß wird, so wird versucht, diese Problematik durch Änderung des lei¬ tenden Querschnitts oder durch Änderungen der elektrischen Leitfähigkeit aufgrund der Verwendung von anderem Material oder durch eine Verbesserung der Kühlung zu lösen. Auch kom¬ binierte Maßnahmen werden hierzu eingesetzt.Rail no longer holds useful electricity; that is, for electricity transportation it no longer makes any significant contribution in the film. Only eddy currents which generate additional losses are induced in the more distant part of the power supply rail. Particularly high eddy currents are induced in the supply rails at the winding edges by the foil winding. Here the film winding shows greatly increased current densities due to the current displacement effect. This increased flow through the film winding induces eddy currents in the cross-sectional plane of the supply rails and thus additional losses. If the sum of the losses in the area of the supply lines becomes too large in the case of highly utilized transformers, an attempt is made to solve this problem by changing the conductive cross section or by changing the electrical conductivity due to the use of different material or by improving the cooling . Combined measures are also used for this.
Aus der eingangs genannten Literaturstelle aus "Electrical Equipment" ist es für Leistungstransformatoren mit Folien- Wicklungen bekannt, daß man das Folienende in einem Anschlu߬ bereich aufgrund von in Längsrichtung der Leiterfolie verlau¬ fenden Schlitzungen in mehrere fahnenartige Endstücke unter¬ teilt, welche so um einen rechten Winkel abgeknickt bzw. ge¬ faltet werden, daß die fahnenartigen Endstücke einen Stapel eines lamellierten Stromzuführungsleiters bilden. Weitere konkrete Ausgestaltungen eines solchen lamellierten Stromzu¬ führungsleiters sind der genannten Literaturstelle nicht zu entnehmen. Es ist davon auszugehen, daß auch in einem derar¬ tigen lamellierten Stromzuführungsleiter erhebliche Wirbel- Stromverluste auftreten.For the power transformers with foil windings, it is known from the above-mentioned literature reference from "Electrical Equipment" that the foil end is divided into a plurality of tab-like end pieces in a connection area on account of slits running in the longitudinal direction of the conductor foil, which thus are bent or folded at a right angle such that the flag-like end pieces form a stack of a laminated power supply conductor. No further specific configurations of such a laminated current supply conductor can be found in the cited literature reference. It can be assumed that considerable eddy current losses also occur in such a laminated power supply conductor.
Aufgabe der vorliegenden Erfindung ist es deshalb, den be¬ kannten Stromzuführungsleiter mit den eingangs genannten Merkmalen dahingehend zu verbessern, daß die Wirbelstromver- luste in seinem lamellierten Stapel weiter vermindert sind. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die fahnenartigen, gefalteten Endstücke des Leiterstapels zumin¬ dest in dem Bereich des Wicklungsrandes des ungeschlitzten Folienteils gegenseitig isoliert sind.It is therefore an object of the present invention to improve the known power supply conductor with the features mentioned at the outset in such a way that the eddy current losses in its laminated stack are further reduced. This object is achieved in that the flag-like, folded end pieces of the conductor stack are mutually insulated at least in the region of the winding edge of the unslit film part.
Mit dieser Maßnahme können vorteilhaft Wirbelströme in der Querschnittsebene des Stromzuführungsleiters weitgehend un¬ terdrückt werden. Es wurde nämlich erkannt, daß gerade in dem Randbereich des ungeschlitzten Folienteils die Gefahr einer Wirbelstrombildung besonders hoch ist. Die fahnenartigenWith this measure, eddy currents can advantageously be largely suppressed in the cross-sectional plane of the power supply conductor. It was recognized that the risk of eddy current formation is particularly high in the edge region of the unslit film part. The flag-like
Endstücke brauchen dabei nur einige Zentimeter von der Linie der verlängerten Längsseite des ungeschlitzten Folienteils nach außen hin isoliert voneinander geführt zu werden; weiter außen (außerhalb des Bereichs der Folienwicklung) kann man auf eine Isolation der fahnenartigen Endstücke verzichten und diese ohne Isolation weiterführen oder in eine massive Zulei¬ tungsschiene übergehen lassen.End pieces need only be guided a few centimeters from the line of the elongated long side of the unslit film part to the outside in isolation; further outside (outside the area of the film winding) one can do without insulation of the flag-like end pieces and carry them on without insulation or let them pass into a massive supply rail.
Vorteilhafte Ausgestaltungen des erfindungsgemäßen Stromzu- führungsleiters gehen aus den Unteransprüchen hervor.Advantageous refinements of the power supply conductor according to the invention emerge from the subclaims.
Zur weiteren Erläuterung der Erfindung wird nachfolgend auf die Zeichnung Bezug genommen. Dabei zeigen jeweils schema¬ tisch als Aufsicht deren Figuren 1 bis 5 den sukzessiven Aufbau eines erfindungsgemäßen Stromzuführungsleiters für einenTo further explain the invention, reference is made below to the drawing. 1 to 5 schematically show the successive structure of a power supply conductor according to the invention for one
Leistungstransformator und'Power transformer and '
Figur 6 eine weitere spezielle Ausführungsform eines solchen Stromzuführungsleiters.Figure 6 shows another special embodiment of such a power supply conductor.
Figur 7 zeigt als Diagramm den Stromabfall an einem entsprechenden Stromzuführungsleiter.Figure 7 shows a diagram of the current drop on a corresponding power supply conductor.
Für eine wirksame Verminderung der Verlustleistung in einem Stromzuführungsleiter und einer ihm zugeordneten Anschlußfo¬ lie der Folienwicklung eines Leistungstransformators ist eine 4 Lamellierung des Querschnitts des Stromzuführungsleiters und dessen Verkürzung auf eine elektrisch wirksame Länge vorgese¬ hen. Außerdem vermindert eine kontrollierte Stromeinleitung in die Anschlußfolie die maximal auftretenden Stromdichten in der Wicklungsfolie; und damit werden die Verluste im An¬ schlußbereich der Folie ebenfalls reduziert.For an effective reduction of the power loss in a power supply conductor and an associated connection foil of the foil winding of a power transformer, there is one 4 Lamination of the cross section of the power supply conductor and its shortening to an electrically effective length are provided. In addition, a controlled introduction of current into the connection foil reduces the maximum current densities that occur in the winding foil; and thus the losses in the connection area of the film are also reduced.
Beim Aufbau eines entsprechenden Stromzuführungsleiters wird von der in der genannten Literaturstelle aus "Electrical Equipment" angedeuteten Maßnahme ausgegangen, aus dem Ende einer bandförmigen Leiterfolie einer Folienwicklung eine An¬ zahl von fahnenartigen Endstücken herauszuarbeiten, die dann durch eine sukzessive Faltung einen Stapel des Stromzufüh¬ rungsleiters mit der benötigten elektrischen Querschnittsflä- ehe ergeben (vgl. Figuren 1 bis 5). Die im folgenden be¬ schriebenen Schritte zeigen den Aufbau eines solchen Stromzu¬ führungsleiters.When constructing a corresponding power supply conductor, the measure indicated in the cited reference from "Electrical Equipment" is used to work out a number of tab-like end pieces from the end of a ribbon-shaped conductor foil of a foil winding, which end pieces then successively fold a stack of the power supply conductor with the required electrical cross-sectional area (see FIGS. 1 to 5). The steps described below show the construction of such a power supply conductor.
Figur 1 zeigt das Ende einer an sich bekannten bandförmigen Leiterfolie 2 mit einer Breite B. Diese Leiterfolie stellt die Anschlußfolie einer Folienwicklung dar und geht in meh¬ rere, beispielsweise vier, fahnenartige Endstücke 3i (mit i = a, b, c oder d) über, die zweckmäßigerweise gegenseitig durch schmale Schlitze 4 getrennt sind. Gemäß dem angenomme- nen Ausführungsbeispiel haben die fahnenartigen Endstücke 3i alle etwa die gleiche Breite b. Gegebenenfalls können sie je¬ doch auch unterschiedliche Breiten haben. Die Breite b der Endstücke 3i wird dabei vorzugsweise so gewählt, daß stirn¬ seitige Randzonen 2a und 2b der Anschlußfolie 2 frei bleiben. Außerdem können vorteilhaft die fahnenartigen Endstücke 3i symmetrisch bezüglich der verlängerten Mittellinie 5 der An¬ schlußfolie 2 angeordnet sein. Die Länge Li der einzelnen Endstücke 3i kann dabei so gewählt werden, daß nach einer Faltung die stirnseitigen Enden 6i der Endstücke 3i in etwa eine gemeinsame Stirnseite eines Stapels des Stromzufüh¬ rungsleiters bilden. In Figur 1 ist das kürzeste Endstück 3a das erste, das gefal¬ tet werden soll, und auch das in Stromführungsrichtung gese¬ hen erste, das den Obergang des Stromes von dem Stromzufüh- rungsleiter auf die Anschlußfolie 2 ermöglicht. Gemäß der Darstellung der Figur ist es als "oberstes" Endstück anzuse¬ hen.FIG. 1 shows the end of a known band-shaped conductor foil 2 with a width B. This conductor foil represents the connecting foil of a foil winding and goes into several, for example four, flag-like end pieces 3i (with i = a, b, c or d) about, which are conveniently separated from each other by narrow slots 4. According to the assumed exemplary embodiment, the flag-like end pieces 3i all have approximately the same width b. If necessary, they can also have different widths. The width b of the end pieces 3i is preferably chosen so that end-side edge zones 2a and 2b of the connecting foil 2 remain free. In addition, the flag-like end pieces 3i can advantageously be arranged symmetrically with respect to the extended center line 5 of the connecting film 2. The length Li of the individual end pieces 3i can be chosen so that after folding the end ends 6i of the end pieces 3i form approximately a common end face of a stack of the current supply conductor. In FIG. 1, the shortest end piece 3a is the first one that is to be folded, and also the first one seen in the direction of current conduction that enables the current to pass from the current supply conductor to the connecting foil 2. According to the representation of the figure, it is to be seen as the "uppermost" end piece.
Dieses oberste Endstück 3a wird gemäß Figur 2 nach oben unter Abwinklung um 90° und unter Ausbildung eines Faltungsbereichs 11a gefaltet. Dieses nunmehr mit 3a' bezeichnete Endstück soll erfindungsgemäß auf seiner oberen Flachseite F,auf der später das nächste fahnenartige Endstück (3b) zu liegen kom¬ men soll, zumindest teilweise isoliert werden. (Die gefalte- ten Endstücke sind nachfolgend zusätzlich mit "'" markiert). Hierzu kann gemäß Figur 3 diese Flachseite F entsprechend mit einer Isolationsfolie 7a abgedeckt werden. Die Isola¬ tionsfolie kann, wie in Figur 3 angenommen, eine etwas größe¬ re Breite b' als das zugehörende fahnenartige Endstück 3a' aufweisen; die Breiten b' und b von Isolationsfolie 7a und Endstück 3a' können aber auch gleich sein. Die Isolationsfo¬ lie 7a soll mindestens einen Bereich 12 um den verlängerten seitlichen Rand 21 der Anschlußfolie 2 (bzw. um deren verlän¬ gerte seitliche Längskante) abdecken. Vorteilhaft liegen die beiden Seitenränder des Bereichs 12 einige Zentimeter von dem verlängerten Rand 21 entfernt. Außerdem erstreckt sich vor¬ teilhaft die Isolationsfolie 7 bis zum Faltungsbereich 11a ■ des Endstücks 3a (einschließlich) und vorzugsweise darüber hinaus unter Abdeckung noch des Faltungsbereichs 11b des nächsten Endstücks (3b) . Gegebenenfalls kann auch die Unter¬ seite des Endstücks 3a' wenigstens in dessen Faltungsbereich 11a mit einer Isolationsfolie versehen werden.This uppermost end piece 3a is folded upward according to FIG. 2 with an angle of 90 ° and with the formation of a folding area 11a. According to the invention, this end piece, now designated 3a ', is to be at least partially insulated on its upper flat side F, on which the next flag-like end piece (3b) will later lie. (The folded end pieces are additionally marked with "'" below). For this purpose, according to FIG. 3, this flat side F can be covered with an insulation film 7a. As assumed in FIG. 3, the insulation film can have a somewhat larger width b 'than the associated flag-like end piece 3a'; the widths b 'and b of insulation film 7a and end piece 3a' can also be the same. The insulation foil 7a is intended to cover at least one area 12 around the elongated lateral edge 21 of the connecting foil 2 (or around its elongated lateral longitudinal edge). The two side edges of the region 12 are advantageously a few centimeters away from the extended edge 21. In addition, the insulating film 7 advantageously extends up to the folding area 11a of the end piece 3a (inclusive) and preferably beyond it, while still covering the folding area 11b of the next end piece (3b). If necessary, the underside of the end piece 3a 'can also be provided with an insulating film, at least in its folding area 11a.
Gemäß Figur 4 wird dann das zweite fahnenartige Endstück 3b entsprechend nach oben gefaltet, so daß die beiden Endstücke 3a' und 3b' zusammen mit der zwischen ihnen vorhandenen Iso- lationsfolie 7a beispielsweise deckungsgleich übereinander zu liegen kommen. Dann wird wiederum eine Isolation gemäß Figur 3 vorgenommen.According to FIG. 4, the second flag-like end piece 3b is then folded upwards accordingly, so that the two end pieces 3a 'and 3b' together with the iso present between them lation film 7a, for example, come to lie congruently one above the other. Then insulation is again carried out according to FIG. 3.
Die Faltung der fahnenartigen Endstücke 3i in dem jeweiligen Faltungsbereich (11a bis lld) und deren gegenseitige Isola¬ tion wird fortgesetzt, bis alle Endstücke übereinander ge¬ meinsam gemäß Figur 5 einen gegenüber der Folienlängsrichtung abgeknickten Stapel 10 eines lamellierten Stromzufüh- rungsleiters 8 bilden. Zwischen den einzelnen fahnenartigen Endstücken 3i' befindet sich dabei zumindest in dem Randbe¬ reich 12, vorteilhaft auch bis in die jeweiligen Faltungsbe¬ reiche (11a bis lld) jeweils eine Isolationsfolie (7a bis 7c) , damit die Endstücke elektrisch voneinander isoliert sind. Hierdurch lassen sich Wirbelströme in der Querschnitts¬ ebene des Stromzuführungsleiters 8 wirksam unterdrücken.The folding of the flag-like end pieces 3i in the respective folding area (11a to 11d) and their mutual insulation is continued until all the end pieces form a stack 10 of a laminated power supply conductor 8 that is bent relative to the film longitudinal direction. Between the individual tab-like end pieces 3i 'there is at least in the edge area 12, advantageously also up to the respective folding areas (11a to 11d) an insulation film (7a to 7c) so that the end pieces are electrically insulated from one another. As a result, eddy currents in the cross-sectional plane of the power supply conductor 8 can be effectively suppressed.
Die fahnenartige Endstücke 3i müssen nur bis einige Zentime¬ ter außerhalb des Randbereichs 12 der Folienwicklung isoliert voneinander geführt werden; danach kann man auf eine Isola¬ tion zwischen den Endstücken verzichten und diese ohne Isola¬ tion weiterführen oder in eine massive Zuleitungsschiene übergehen lassen.The flag-like end pieces 3i only have to be guided in isolation from one another up to a few centimeters outside the edge region 12 of the film winding; after that, there is no need for insulation between the end pieces and this can be continued without insulation or can be passed into a massive feed rail.
Die Aufteilung des gesamten Leiterstromes auf die einzelnen fahnenartigen Endstücke wird beeinflußt durch die unter¬ schiedliche Länge und damit durch den elektrischen Widerstand der jeweiligen Endstücke sowie durch die unterschiedlichen axialen Anschlußpositionen der Endstücke an der Anschlußfo- lie. Diese Anschlußpositionen legen die unterschiedlicheThe distribution of the total conductor current among the individual flag-like end pieces is influenced by the different length and thus by the electrical resistance of the respective end pieces and by the different axial connection positions of the end pieces on the connecting foil. These connection positions lay the different
Flußverkettung der Folie über der Wicklungshöhe und damit die induzierte Spannung fes . In der axialen Mitte der Folie ist die Flußverkettung höher als am oberen und unteren Rand der Folie. Die natürliche ungleichmäßige Aufteilung des gesamten Leiter¬ stromes auf die einzelnen fahnenartigen Endstücke 3i' kann man vorteilhaft durch kleine Verschiebungen der Endstücke in Umfangsrichtung, d.h. in der verlängerten Längsrichtung der Anschlußfolie 2, gegeneinander beeinflussen, indem sich die induzierte Spannung entsprechend ändert. In Figur 6 ist eine derartige Verschiebung v der fahnenartigen Endstücke 3d' und 3c' in einer den Figuren 1 bis 5 entsprechenden Darstellung veranschaulicht. Die gegenseitige Verschiebung der Endstücke in Längsrichtung der Folie 2 liegt im allgemeinen im mm-Be- reich und hängt von der jeweiligen WindungsSpannung des Fo¬ lientransformators ab. Im allgemeinen beträgt die seitliche Verschiebung höchstens einige mm. Dann läßt sich vorteilhaft eine Vergleichmäßigung der Stromaufteilung zwischen den einzelnen fahnenartigen Endstücken erreichen. Entsprechende Verschiebungen können selbstverständlich auch für die übrigen fahnenartigen Endstücke vorgesehen sein.Flow linkage of the film over the winding height and thus the induced voltage fes. The flux linkage is higher in the axial center of the film than at the top and bottom of the film. The natural, uneven distribution of the total conductor current to the individual flag-like end pieces 3i 'can advantageously be influenced by small displacements of the end pieces in the circumferential direction, ie in the extended longitudinal direction of the connecting foil 2, by changing the induced voltage accordingly. Such a displacement v of the flag-like end pieces 3d 'and 3c' is illustrated in FIG. 6 in a representation corresponding to FIGS. 1 to 5. The mutual displacement of the end pieces in the longitudinal direction of the film 2 is generally in the mm range and depends on the respective winding voltage of the film transformer. In general, the lateral displacement is at most a few mm. Then it is advantageously possible to achieve an equalization of the current distribution between the individual flag-like end pieces. Corresponding displacements can of course also be provided for the other flag-like end pieces.
Mit einer anhand der vorstehenden Figuren erläuterten Strom- Zuführungsleitung läßt sich bei einem Leistungstransformator ein kontrollierter Stromabfall in der Zuleitung und damit zu¬ gleich eine entsprechend gleichmäßige Stromeinleitung in eine Anschlußfolie einer Unterspannungswicklung erreichen. Figur 7 zeigt in einem Diagramm einen solchen Stromabfall. Dabei sind in Ordinatenrichtung der Strom I in dem Stromzuführungsleiter an dessen folienseitigem Ende und in Abszissenrichtung dessen Länge x an diesem Ende jeweils in willkürlichen Einheiten aufgetragen. Die jeweilige Ausdehnung a(3i') der einzelnen fahnenartigen Endstücke 3i' ist durch das entsprechende Bezugszeichen des jeweiligen Endstückes markiert.Ferner ist die Ausdehnung a(2) des Bereichs der Anschlußfolie 2 der Unterspannungswicklung entsprechend eingetragen. Aus dem Kurvenverlauf läßt sich der kontrollierte, verhältnismäßig gleichmäßige Stromabfall am Ende der Stromzuführungsleitung erkennen. Damit werden vorteilhaft Stromdichteüberhöhungen in der Anschlußfolie und daraus folgend zusätzlich Verluste ver¬ mieden.With a current supply line explained with reference to the preceding figures, a controlled current drop in the supply line and thus a correspondingly uniform current introduction into a connecting foil of an undervoltage winding can be achieved in a power transformer. FIG. 7 shows such a drop in current in a diagram. The current I is plotted in the ordinate direction in the current supply conductor at its end on the film side and in the abscissa direction its length x at this end in arbitrary units. The respective extent a (3i ') of the individual flag-like end pieces 3i' is marked by the corresponding reference number of the respective end piece. Furthermore, the extent a (2) of the area of the connecting foil 2 of the undervoltage winding is entered accordingly. The controlled, relatively uniform current drop at the end of the power supply line can be seen from the curve. This increases current density increases in the connecting foil and consequently additional losses avoided.
Gemäß den dargestellten Ausführungsbeispielen wurde davon ausgegangen, daß die gegenseitige Isolation der einzelnen ge¬ falteten Endstücke 3i' mittels Isolationsfolien bewirkt wird. Selbstverständlich sind auch andere isolationstechnische Maßnahmen geeignet. So kann man z.B. die einzelnen Endstücke vor oder nach deren Faltung mit isolierenden Schichten verse- hen.According to the exemplary embodiments shown, it was assumed that the mutual insulation of the individual folded end pieces 3i 'is effected by means of insulation foils. Of course, other insulation measures are also suitable. So you can e.g. provide the individual end pieces with insulating layers before or after they are folded.
Ferner wurde eine symmetrische Anordnung der fahnenartigen Endstücke 3i bezüglich der gedachten Folienmittellinie 5 an¬ genommen (vgl. Figur 1). Jedoch ist auch eine unsymmetrische Anordnung möglich. Dies führt zu dem Vorteil kürzerer Leiter¬ längen und damit kleinerer Verluste bei ungleichmäßigerer Stromaufteilung. Eventuelle Probleme einer ungleichmäßigeren Stromaufteilung können jedoch durch die in Figur 6 veran¬ schaulichten seitlichen Verschiebungen der Endstücke verrin- gert werden.Furthermore, a symmetrical arrangement of the flag-like end pieces 3i with respect to the imaginary film center line 5 was assumed (cf. FIG. 1). However, an asymmetrical arrangement is also possible. This leads to the advantage of shorter conductor lengths and thus smaller losses with a more uneven current distribution. Any problems with a more uneven current distribution can, however, be reduced by the lateral displacements of the end pieces illustrated in FIG. 6.
Auch sind ungleiche Breiten der einzelnen fahnenartigen End¬ stücke 3i prinzipiell möglich und können vorteilhaft mit den erwähnten seitlichen Verschiebungsmaßnahmen kombiniert wer- den. Eine seitliche Verschiebung kann beispielsweise durch eine nachträgliche Materialentfernung an den links- und/oder rechtsseitigen Längskanten der Endstücke erfolgen.In principle, unequal widths of the individual flag-like end pieces 3i are possible and can advantageously be combined with the lateral displacement measures mentioned. A lateral shift can take place, for example, by a subsequent material removal on the left and / or right-hand longitudinal edges of the end pieces.
Die erfindungsgemäßen Maßnahmen beziehen sich im wesentlichen auf die Ausgestaltung einer Stromzuführungsleitung eines Lei¬ stungstransformators mit Folienwicklung. Entsprechende Lei¬ stungstransformatoren sind prinzipiell bekannt, so daß in den Zeichnungen auf deren explizite Darstellung verzichtet wurde. The measures according to the invention essentially relate to the configuration of a power supply line of a power transformer with a foil winding. Corresponding power transformers are known in principle, so that their explicit representation has been omitted in the drawings.

Claims

Patentansprüche claims
1. Lamellierter Stromzuführungsleiter eines Leistungstrans¬ formators mit einer aus einer bandförmigen Leiterfolie ge- wickelten, luftgekühlten Folienwicklung, deren Folienende aufgrund von in Längsrichtung der Folie verlaufenden Schlit¬ zungen mehrere fahnenartigen Endstücke bildet, welche zu einem gegenüber der Folienlängsrichtung abgeknickten Stapel des Stromzuführungsleiters gefaltet sind, d a d u r c h g e k e n n z e i c h n e t , daß die fahnenartigen, gefal¬ teten Endstücke (3i') des Leiterstapels (10) zumindest in dem Bereich (12) des Randes (21) des ungeschlitzten Folienteils (2) gegenseitig isoliert sind.1. Laminated power supply conductor of a power transformer with an air-cooled foil winding wound from a strip-shaped conductor foil, the foil end of which forms several flag-like end pieces due to slits running in the longitudinal direction of the foil, which are folded to form a stack of the power supply conductor that is bent relative to the foil longitudinal direction , characterized in that the flag-like, folded end pieces (3i ') of the conductor stack (10) are mutually insulated at least in the region (12) of the edge (21) of the unslit film part (2).
2. Stromzuführungsleiter nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß zur gegenseitigen Isola¬ tion der fahnenartigen, gefalteten Endstücke (3i') Isola¬ tionsfolien (7) vorgesehen sind.2. Power supply conductor according to claim 1, d a d u r c h g e k e n e z e i c h n e t that for the mutual insulation of the flag-like, folded end pieces (3i ') insulation foils (7) are provided.
3. Stromzuführungsleiter nach Anspruch 1 oder 2, d a ¬ d u r c h g e k e n n z e i c h n e t , daß die fahnenar¬ tigen Endstücke (3i) vor ihrer Faltung symmetrisch bezüglich einer Mittellinie (5) der Leiterfolie (2) angeordnet sind.3. Power supply conductor according to claim 1 or 2, so that the tab-like end pieces (3i) are arranged symmetrically with respect to a center line (5) of the conductor foil (2) before they are folded.
4. Stromzuführungsleiter nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t , daß die fah¬ nenartigen Endstücke (3i bzw. 3i') gleiche Breite (b) haben.4. Power supply conductor according to one of claims 1 to 3, d a d u r c h g e k e n n z e i c h n e t that the flag-like end pieces (3i or 3i ') have the same width (b).
5. Stromzuführungsleiter nach einem der Ansprüche 1 bis 4, d a d u r c h g e k e n n z e i c h n e t , daß die fah¬ nenartigen Endstücke (3i) vor ihrer Faltung von Endstück zu Endstück zunehmende Länge (Li) aufweisen, so daß sie nach der Faltung in etwa eine gemeinsame Stirnseite des Stromzufüh¬ rungsleiters (8) bilden. 5. Power supply conductor according to one of claims 1 to 4, characterized in that the Fah¬ NEN-like end pieces (3i) have increasing length (Li) before folding from end piece to end piece, so that after folding about a common end face of the Stromzufüh¬ form approximately (8).
6. Stromzuführungsleiter nach einem der Ansprüche 1 bis 5, d a d u r c h g e k e n n z e i c h n e t , daß die fah¬ nenartigen Endstücke (3i') derartig gefaltet sind, daß sie in dem Stapel (10) zumindest annähernd deckungsgleich angeordnet sind.6. Power supply conductor according to one of claims 1 to 5, d a d u r c h g e k e n n z e i c h n e t that the flag-like end pieces (3i ') are folded such that they are arranged in the stack (10) at least approximately congruent.
7. Stromzuführungsleiter nach einem der Ansprüche 1 bis 5, d d u r c h g e k e n n z e i c h n e t , daß zumindest einige der fahnenartigen Endstücke (3C, 3d') derart gefaltet sind, daß sie in dem Stapel des Stromzuführungsleiters gegen¬ einander geringfügig seitlich verschoben angeordnet sind (vgl. Figur 6) .7. Power supply conductor according to one of claims 1 to 5, characterized by the fact that at least some of the flag-like end pieces (3C, 3d ') are folded in such a way that they are arranged slightly laterally displaced relative to one another in the stack of the power supply conductor (see FIG. 6). .
8. Stromzuführungsleiter nach Anspruch 7, d a d u r c h g e k e n n z e i c h n e t , daß die seitliche Verschie¬ bung (v) höchstens einige Millimeter beträgt.8. Power supply conductor according to claim 7, so that the lateral displacement (v) is at most a few millimeters.
9. Folienwicklung mit einem Stromzuführungsleiter nach einem der Ansprüche 1 bis 8.9. foil winding with a power supply conductor according to one of claims 1 to 8.
10. Leistungstransformator mit einem Stromzuführungsleiter nach einem der Ansprüche 1 bis 8. 10. Power transformer with a power supply conductor according to one of claims 1 to 8.
EP95930376A 1994-09-21 1995-09-08 Power supply conductor from the conductive foil of the foil winding of a power transformer Expired - Lifetime EP0782755B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4433700A DE4433700A1 (en) 1994-09-21 1994-09-21 Power supply conductor from the conductor foil of the foil winding of a power transformer
DE4433700 1994-09-21
PCT/DE1995/001230 WO1996009631A1 (en) 1994-09-21 1995-09-08 Power supply conductor from the conductive foil of the foil winding of a power transformer

Publications (2)

Publication Number Publication Date
EP0782755A1 true EP0782755A1 (en) 1997-07-09
EP0782755B1 EP0782755B1 (en) 1998-05-06

Family

ID=6528815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95930376A Expired - Lifetime EP0782755B1 (en) 1994-09-21 1995-09-08 Power supply conductor from the conductive foil of the foil winding of a power transformer

Country Status (11)

Country Link
US (1) US5805045A (en)
EP (1) EP0782755B1 (en)
JP (1) JPH10505952A (en)
KR (1) KR970706589A (en)
CN (1) CN1068954C (en)
AT (1) ATE165933T1 (en)
BR (1) BR9508980A (en)
DE (2) DE4433700A1 (en)
ES (1) ES2116762T3 (en)
TW (1) TW271483B (en)
WO (1) WO1996009631A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6535100B2 (en) * 2000-04-14 2003-03-18 Powerware Corporation Insulated transformer foil windings with breakouts and methods for forming the same
DE10052569A1 (en) * 2000-10-24 2002-04-25 Bosch Gmbh Robert Foil winding for rotary transformer includes electrical ribbon conductor curled on itself, insulating coating covering conductor and connectors, each making electrical contact with the end of the conductor
US6930582B2 (en) * 2000-11-07 2005-08-16 Iota Engineering Co. Self lead foil winding configuration for transformers and inductors
US6642830B1 (en) * 2000-11-07 2003-11-04 Iota Engineering Co. Self lead foil winding configuration for transformers and inductors
DE10157590A1 (en) * 2001-11-23 2003-06-05 Abb T & D Tech Ltd Winding for a transformer or a coil
WO2007035155A1 (en) * 2005-09-20 2007-03-29 Scandinova Systems Ab A foil winding pulse transformer
CN102314992A (en) * 2010-06-29 2012-01-11 信源电子制品(昆山)有限公司 Hollow induction coil
WO2013084609A1 (en) * 2011-12-07 2013-06-13 Ｎｅｃトーキン株式会社 Coil, reactor, and coil formation method
WO2017216412A1 (en) * 2016-06-13 2017-12-21 Trafotek Oy A busbar for a core-structure electric power engineering component with foil type windings, and a core-structure electric power engineering component with foil type windings
US11605496B2 (en) 2018-04-09 2023-03-14 Abb Schweiz Ag Foil wound magnetic assemblies with thermally conductive tape and methods of assembling same
NL2032236B1 (en) * 2022-06-21 2024-01-08 Univ Eindhoven Tech Foil winding leads and method for forming the same
CN115331954B (en) * 2022-10-17 2023-01-24 广州市一变电气设备有限公司 Transformer foil type coil winding and wire outgoing method, winding and energy-saving and environment-friendly transformer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1160357A (en) * 1909-03-03 1915-11-16 Agnew Electric Welding Company Electrical transformer.
US2378884A (en) * 1940-06-20 1945-06-19 Thomson Gibb Electric Welding Transformer
DE911292C (en) * 1947-10-03 1954-05-13 Asea Ab High current winding for transformers u. like
US2961747A (en) * 1955-03-21 1960-11-29 Aladdin Ind Inc Method of making inductance coils
SE324668B (en) * 1968-12-20 1970-06-08 Ibm Svenska Ab
DE1908165A1 (en) * 1969-02-19 1970-10-15 Schorch Gmbh Tape winding for transformers
NL8702531A (en) * 1987-10-23 1989-05-16 Philips Nv ROTATING TRANSFORMER.
US4902998A (en) * 1988-11-21 1990-02-20 Westinghouse Electric Corp. Inductor assembly with cooled winding turns

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ELECTRICAL EQUIPMENT, Juli 1974 Seiten 60-62, 'AL ALLOYS for foil-wound coils' *
JOURNAL DE L'EQUIPEMENT ELECTRIQUE ET ELECTRONIQUE, Nr. 295, November 1969 Seite 123:'Les bobinages de transformateurs en feuilles d'aluminium' *

Also Published As

Publication number Publication date
CN1152970A (en) 1997-06-25
KR970706589A (en) 1997-11-03
JPH10505952A (en) 1998-06-09
DE59502126D1 (en) 1998-06-10
DE4433700A1 (en) 1996-03-28
US5805045A (en) 1998-09-08
EP0782755B1 (en) 1998-05-06
CN1068954C (en) 2001-07-25
TW271483B (en) 1996-03-01
BR9508980A (en) 1998-01-13
WO1996009631A1 (en) 1996-03-28
ES2116762T3 (en) 1998-07-16
ATE165933T1 (en) 1998-05-15

Similar Documents

Publication Publication Date Title
EP2717278B1 (en) Inductive fault current limiter with split secondary coil assembly
DE69723435T2 (en) CONTROLLABLE INDUCTOR
DE69215777T2 (en) Transformer winding consisting of an insulating tape with electrically conductive patterns for parallel connection of the patterns when zigzag-shaped folding of this insulating tape
EP3815221A1 (en) Actively cooled coil
DE2728296A1 (en) INDUCTION HEATING DEVICE
EP0782755B1 (en) Power supply conductor from the conductive foil of the foil winding of a power transformer
EP1315182B1 (en) Winding for a tranformer or a coil
EP1722996B1 (en) Magnetic pole for magnetic levitation vehicles
DE3108161C2 (en) Winding for a transformer or a choke
DE3033890C2 (en) Three-phase transformer group
DE102014106480A1 (en) Low-loss transformers and manufacturing methods for these
DE1242265B (en) Power cryotron
EP0520361B1 (en) Water cooled inductance for high-current devices
DE2548328A1 (en) SUPPRESSION OF CORONA DISCHARGE IN HIGH VOLTAGE EVOLUTIONS
DE1413549B2 (en) HIGH VOLTAGE LEVEL WINDING WITH INTERNAL ENTRANCE FOR TRANS FORMATORS AND REACTORS
DE102016205249A1 (en) condenser system
DE1764268C3 (en) Superconducting magnet coil
DE2421257A1 (en) TRANSFER
DE2653591A1 (en) HIGH PERFORMANCE TRANSFORMER FOR ULTRA HIGH VOLTAGE
DE102020128417A1 (en) TAP CONDUCTOR DEVICE AND CABLE COMPRISING THE TAP CONDUCTOR DEVICE
DE2625165A1 (en) TRANSFORMER COIL FOR VERY HIGH VOLTAGE
DE2002192C (en) Transformer, choke coil or similar induction devices for high secondary voltage
DE1413549C (en) High-voltage layer winding with internal input for transformers and reactors
DE102020100190A1 (en) Inductive component with an operating frequency in the medium frequency range
DE2019103C3 (en) Double-layer windings for transformers and reactors

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19961204

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI PT SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19970806

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI PT SE

REF Corresponds to:

Ref document number: 165933

Country of ref document: AT

Date of ref document: 19980515

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59502126

Country of ref document: DE

Date of ref document: 19980610

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19980608

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN P. & C. S.N.C.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2116762

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 19980819

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19980826

Year of fee payment: 4

26 Opposition filed

Opponent name: BLOCK TRANSFORMATOREN-ELEKTRONIK GMBH & CO. KG GES

Effective date: 19980709

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19980909

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19980911

Year of fee payment: 4

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 19980805

PLAV Examination of admissibility of opposition

Free format text: ORIGINAL CODE: EPIDOS OPEX

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990909

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19990929

PLAV Examination of admissibility of opposition

Free format text: ORIGINAL CODE: EPIDOS OPEX

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000331

EUG Se: european patent has lapsed

Ref document number: 95930376.9

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20000331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000914

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20000920

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000929

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20001120

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20001214

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010930

BERE Be: lapsed

Owner name: SIEMENS A.G.

Effective date: 20010930

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020501

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020531

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20001013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050908

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT