EP2529382A1 - On-load tap changer - Google Patents

On-load tap changer

Info

Publication number
EP2529382A1
EP2529382A1 EP10794882A EP10794882A EP2529382A1 EP 2529382 A1 EP2529382 A1 EP 2529382A1 EP 10794882 A EP10794882 A EP 10794882A EP 10794882 A EP10794882 A EP 10794882A EP 2529382 A1 EP2529382 A1 EP 2529382A1
Authority
EP
European Patent Office
Prior art keywords
cooling device
tap changer
cooling
load tap
oil
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
EP10794882A
Other languages
German (de)
French (fr)
Other versions
EP2529382B1 (en
Inventor
Thomas Huber
Christian Hurm
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.)
Maschinenfabrik Reinhausen GmbH
Scheubeck GmbH and Co
Original Assignee
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
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
Application filed by Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
Publication of EP2529382A1 publication Critical patent/EP2529382A1/en
Application granted granted Critical
Publication of EP2529382B1 publication Critical patent/EP2529382B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0044—Casings; Mountings; Disposition in transformer housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts

Definitions

  • the present invention relates to an on-load tap-changer for uninterrupted use
  • On-load tap-changers have been in worldwide use for many years for uninterrupted switching between different winding taps of tapped transformers in large numbers.
  • Such on-load tap changer usually consist of a selector for powerless selection of the respective winding tap of the tapped transformer to be switched to, and a diverter switch for the actual switching from the previous to the new, preselected winding tapping.
  • the diverter switch usually has switching contacts and resistance contacts. The switch contacts are used for direct connection of the respective winding tap with the load dissipation, the resistance contacts for short-term shading, d. H. Bridging by means of one or more switching resistors.
  • On-load tap-changer is either the entire on-load tap-changer, but at least the then separate diverter switch is mounted in an oil tank separated from the transformer oil.
  • the oil serves both for electrical insulation and increase the dielectric strength between voltage-carrying parts on the tap changer, as well as for
  • the object of the present invention is therefore to specify an on-load tap-changer which, despite a large number of completed circuits, does not exceed the limits of the insulating oil temperature within the oil tank within a relatively short period of time.
  • the general inventive idea is to provide in the area of the tap changer head a cooling device through which a separate circulating cooling medium can flow, which is designed as a closed cooling circuit and by means of which the excess heat energy can be removed from the insulating oil of the oil tank of the on-load tap changer.
  • the dissipated heat energy may be released via commercial components to the environment (e.g., fluid-to-air heat exchangers) or other cooling media (e.g., fluid-to-fluid heat exchangers).
  • the temperature of the insulating oil in the oil vessel by the additionally provided cooling device which works like a heat exchanger, is kept at a definable low level, it is with the
  • the cooling efficiency can be selectively controlled both via the volume flow of the cooling medium and the temperature of the same.
  • cooling media can in principle all fluids can be used, which have a large specific heat capacity, in particular the insulating oil itself.
  • the heat sink is the
  • Cooling device formed as a immersed in the insulating oil of the oil vessel spiral, wherein the respective ends of the spiral once form the inflow and the other times the outflow for the cooling medium. Due to the helical configuration of the heat sink is a
  • Stepped transformer may require the spiral configuration of the
  • Heatsink in the context of this embodiment also double, or multiple, i. three, four or five times.
  • the cooling efficiency of the cooling device can also be influenced by the number of individual turns of the respective spiral. The cooling device is therefore limited neither to the number of spirals shown in this embodiment, nor the number of turns shown.
  • the cooling device is integrated with separately circulating cooling medium in the arranged on the on-load tap changer shield rings.
  • Such umbrella rings for on-load tap-changers are known, for example, from DE10011966, which is based on the Applicant.
  • the integration of the cooling device into the without existing shield rings of the on-load tap-changer offers a particularly space-saving solution for the additionally provided cooling device with separate cooling medium through the functional combination of cooling and dielectric properties in a single component, namely the further developed shield rings.
  • the additional cooling device is a circulating integrated in the lateral wall of the tap changer head
  • the additional cooling device is a cooling coil on which the separate oil vessel upwards i arranged sealing cover of the on-load tap-changer.
  • Design of the cooling device leads to an enlargement of the passing with warm insulating oil in contact surface and thus to an improvement in the cooling performance of
  • Cooling device In a particularly simple manner, the connections for the inflow and outflow of the separate cooling medium can also be performed by the lid to the outside.
  • the insulating oil itself is not cooled, but forced a heat exchange through the additional cooling device with separate cooling medium.
  • a forced exchange takes place between the located in the cooling radiators insulating oil on the one hand and the remaining, much larger volume of insulating oil, which is still in the transformer tank.
  • Figure 1 is a schematic representation of a part of an inventive
  • FIGS. 3a and 3b show a further preferred embodiment of a device according to the invention
  • Figure 4 shows yet another preferred embodiment of a
  • An on-load tap-changer shown only partially in FIG. 1 for reasons of clarity, for uninterrupted switching between different winding taps of a tapped transformer has a substantially flange-like design
  • Tap changer head 1 on the inner lateral wall of the lower ring, a designed as a double spiral cooling device according to the invention 3 is arranged, which is traversed by a separately circulating cooling medium, so that so that
  • Tap-changer head 1 ensures that it is always flushed by the warm insulating oil.
  • FIGS. 2a and 2b show a preferred embodiment of the invention, in which the cooling device 3 is integrated in at least one shield ring 5 of the on-load tap changer.
  • Such umbrella rings 5 are basically known components according to the prior art and are described for example in DE 10011966 of the applicant.
  • the shield ring 5 of Figures 2a and 2b is formed as a horizontally cut, rotationally symmetric toroid having on its inner side a substantially spirally encircling arranged hollow rectangular profile, which forms the cooling device 3.
  • the separate cooling medium of the cooling device 3 can be supplied or removed via the respective pipe connections 4.1 and 4.2, which are located at the corresponding ends of the cooling device 3 designed as a rectangular profile.
  • FIG. 3 a shows a further preferred embodiment in which the cooling device 3 is integrated in the lateral wall of the tap changer head 1 and is designed as a piping system revolving in several horizontal planes.
  • the cooling device 3 in FIG. 3 b is not designed as a tubular system revolving in several horizontal planes, but rather as a hollow profile revolving in the lateral wall of the tap changer head
  • Wall thickness uses available volume as a hollow profile to flow through with a separate cooling medium.
  • the inlet and outlet of the separate cooling medium is also in this embodiment via the corresponding pipe connections 4.1 and 4.2, in this figure, due to the representation of only one of the two pipe connections, namely 4.1, is visible.
  • At the lower end of the lateral wall of the tap changer head is located contact-tight, d. H. sealing, arranged the oil vessel 2, in which the actual, but not shown for reasons of clarity, on-load tap-changer is located.
  • Figure 4 shows the underside of a substantially circular lid 5, which has an additional cooling device 3 in the manner of a cooling coil.
  • the serpentine configuration of the cooling device 3 is adapted to the underside of the lid 5 such that it achieves the greatest possible length for increasing the surface area by means of several turns and bends, which leads to an improvement in the surface coming into contact with warm insulating oil.
  • the pipe connections 4.1 and 4.2 serve in this embodiment both for the inflow and outflow of the separate cooling medium, as well as for fixing the cooling device 3 to the lid 5. Depending on the dimensions of the cooling device 3, this is still by means of further attachment points on the underside of the lid fifth attached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Transformer Cooling (AREA)

Abstract

The invention relates to an on-load tap changer for uninterrupted switching between various winding taps of a tapped transformer. In said on-load tap changer, a cooling device through which a separately circulating cooling medium flows is provided in the area of a tap changer top. Said cooling device is designed as a closed cooling circuit and allows the excess thermal energy to be evacuated from the insulating oil in the oil vessel of the on-load tap changer.

Description

Laststufenschalter  OLTC
Die vorliegende Erfindung betrifft einen Laststufenschalter zur unterbrechungslosen The present invention relates to an on-load tap-changer for uninterrupted use
Umschaltung zwischen verschiedenen Wicklungsanzapfungen eines Stufentransformators gemäß dem Oberbegriff des ersten Patentanspruches. Switchover between different winding taps of a tapped transformer according to the preamble of the first claim.
Laststufenschalter sind seit vielen Jahren zur unterbrechungslosen Umschaltung zwischen verschiedenen Wicklungsanzapfungen von Stufentransformatoren in großen Zahlen weltweit im Einsatz. Solche Laststufenschalter bestehen üblicherweise aus einem Wähler zur leistungslosen Anwahl der jeweiligen Wicklungsanzapfung des Stufentransformators, auf die umgeschaltet werden soll, und einem Lastumschalter zur eigentlichen Umschaltung von der bisherigen auf die neue, vorgewählte Wicklungsanzapfung. Der Lastumschalter weist dazu üblicherweise Schaltkontakte und Widerstandskontakte auf. Die Schaltkontakte dienen dabei zur direkten Verbindung der jeweiligen Wicklungsanzapfung mit der Lastableitung, die Widerstandskontakte zur kurzzeitigen Beschattung, d. h. Überbrückung mittels eines oder mehrerer Überschaltwiderstände. Die Entwicklungen der letzten Jahre führten jedoch weg von Lastumschaltern mit mechanischen Schaltkontakten im Isolieröl. Stattdessen werden vermehrt Vakuumschaltzellen als Schaltelemente eingesetzt. Zukünftig werden auch On-load tap-changers have been in worldwide use for many years for uninterrupted switching between different winding taps of tapped transformers in large numbers. Such on-load tap changer usually consist of a selector for powerless selection of the respective winding tap of the tapped transformer to be switched to, and a diverter switch for the actual switching from the previous to the new, preselected winding tapping. The diverter switch usually has switching contacts and resistance contacts. The switch contacts are used for direct connection of the respective winding tap with the load dissipation, the resistance contacts for short-term shading, d. H. Bridging by means of one or more switching resistors. The developments of recent years, however, led away from load switches with mechanical switching contacts in insulating oil. Instead, more and more vacuum switching cells are used as switching elements. In the future, too
Halbleiterschaltelemente zum Einsatz kommen!  Semiconductor switching elements are used!
Bei einer besonderen Gattung von Laststufenschaltern, den so genannten Lastwählern, sind die beschriebenen Mittel zur Anwahl einer neuen Wicklungsanzapfung und die Mittel zur eigentlichen Lastumschaltung baulich vereinigt und werden gemeinsam betätigt. In a special type of on-load tap-changers, the so-called load selectors, the described means for selecting a new winding tapping and the means for actual load switching are structurally combined and operated together.
Abhängig vom Umschaltprinzip und der konstruktiven Bauart des jeweiligen Depending on the switching principle and the structural design of the respective
Laststufenschalters ist entweder der gesamte Laststufenschalter, mindestens jedoch der dann separate Lastumschalter in einem vom Transformatoröl separierten Ölgefäß montiert. Das Öl dient dabei sowohl zur elektrischen Isolation bzw. Erhöhung der dielektrischen Festigkeit zwischen spannungstragenden Teilen am Stufenschalter, als auch zur  On-load tap-changer is either the entire on-load tap-changer, but at least the then separate diverter switch is mounted in an oil tank separated from the transformer oil. The oil serves both for electrical insulation and increase the dielectric strength between voltage-carrying parts on the tap changer, as well as for
gleichzeitigen Kühlung thermisch stark beanspruchter Bauteile, wie beispielsweise den Überschaltwiderständen, während der eigentlichen Umschaltung. Außerdem dient das Öl zur besseren Lichtbogenlöschung und reduziert im Betrieb die aufzuwendende mechanische Energie aufgrund der guten Schmiereigenschaft. Die kühlende Wirkung des Isolieröls ist auch erforderlich, da während der Umschaltung am Übergangswiderstand (ggf. Drossel) eine hohe Wärmeenergie erzeugt und über das Öl abgeführt wird. Bestimmte Anwendungsgebiete eines Laststufenschalters erfordern jedoch ein häufiges Umschalten zwischen den Wicklungsanzapfungen des Stufentransformators aufgrund häufiger Regelung oder unvorhergesehenen Störungssituationen. Die häufigen simultaneous cooling of components subject to high thermal stress, such as the over-resistance, during the actual switching. In addition, the oil is used for better arc quenching and reduced in operation, the expended mechanical energy due to the good lubricating property. The cooling effect of the insulating oil is also necessary, since during the switchover at the contact resistance (possibly throttle) produces a high heat energy and dissipated via the oil. However, certain applications of an on-load tap changer require frequent switching between the tap taps of the tapped transformer due to frequent control or unforeseen fault situations. The frequent ones
Umschaltungen pro Zeiteinheit könnten das Isolieröl im Stufenschalterölgefäß über die technisch zulässigen Grenzwerte erwärmen. Trotz Erfüllung der Temperaturgrenzwerte einschlägiger Normen können spezielle praktische Anwendungsfälle ohne zusätzliche Maßnahme nicht abgedeckt werden. Switching per unit time could heat the insulating oil in the tap-changer tank over the technically permissible limits. Despite meeting the temperature limits of relevant standards, specific practical applications can not be covered without additional measures.
Aufgabe der vorliegenden Erfindung ist es demnach, einen Laststufenschalter anzugeben, der trotz einer Vielzahl vollzogener Schaltungen innerhalb einer relativ kurzen Zeitperiode keine Überschreitung der Grenzwerte der Isolieröltemperatur innerhalb des Ölgefäßes aufweist. The object of the present invention is therefore to specify an on-load tap-changer which, despite a large number of completed circuits, does not exceed the limits of the insulating oil temperature within the oil tank within a relatively short period of time.
Diese Aufgabe wird durch einen Laststufenschalter mit den Merkmalen des ersten This object is achieved by an on-load tap changer having the features of the first
Patentanspruches gelöst. Die Unteransprüche betreffen besonders vorteilhafte Claim solved. The subclaims relate to particularly advantageous
Weiterbildungen der Erfindung. Further developments of the invention.
Die allgemeine erfinderische Idee besteht darin, im Bereich des Stufenschalterkopfes eine mit einem separat zirkulierenden Kühlmedium durchströmbare Kühleinrichtung vorzusehen, die als geschlossener Kühlkreislauf ausgebildet ist und mittels der die überschüssige Wärmeenergie aus dem Isolieröl des Ölgefäßes des Laststufenschalters abgeführt werden kann. Die abgeführte Wärmeenergie kann über handelsübliche Komponenten an die Umgebung (z.B. Fluid-Luft-Wärmetauscher) oder an andere Kühlmedien (z.B. Fluid-Fluid- Wärmetauscher) abgegeben werden. Indem nun die Temperatur des Isolieröls im Ölgefäß durch die zusätzlich vorgesehene Kühleinrichtung, die nach Art eines Wärmetauschers funktioniert, auf einem definierbar niedrigen Niveau gehalten wird, ist es mit dem The general inventive idea is to provide in the area of the tap changer head a cooling device through which a separate circulating cooling medium can flow, which is designed as a closed cooling circuit and by means of which the excess heat energy can be removed from the insulating oil of the oil tank of the on-load tap changer. The dissipated heat energy may be released via commercial components to the environment (e.g., fluid-to-air heat exchangers) or other cooling media (e.g., fluid-to-fluid heat exchangers). By now the temperature of the insulating oil in the oil vessel by the additionally provided cooling device, which works like a heat exchanger, is kept at a definable low level, it is with the
erfindungsgemäßen Laststufenschalter jetzt möglich, eine Vielzahl von  Inventive on-load tap-changer now possible, a variety of
Wicklungsanzapfungen des Stufentransformators innerhalb einer kurzen Zeitperiode zu durchschalten und dennoch eine ausreichende Kühlung der thermisch belasteten Bauteile des Laststufenschalters sicherzustellen. Da auf Grund der natürlichen Konvektion innerhalb des Ölgefäßes der Kühlkörper zwangsweise von dem nach oben steigenden wärmeren Isolieröl umströmt wird, gewährleistet die gezielte Positionierung der Kühleinrichtung im oberen Bereich des ölgefäßes des Laststufenschalters eine zusätzliche Effizienzsteigerung des Wärmeaustausches zwischen kaltem Kühlmedium und warmen Isolieröl. Je nach vorhandenem Temperaturunterschied zwischen Kühlmedium und Isolieröl kann die Kühleffizienz sowohl über den Volumenstrom des Kühlmediums, als auch die Temperatur des Selbigen gezielt gesteuert werden. Als Kühlmedien können grundsätzlich alle Fluide verwendet werden, die eine große spezifische Wärmekapazität aufweisen, insbesondere das isolieröl selbst. Turn through the winding taps of the tapped transformer within a short period of time and still ensure sufficient cooling of the thermally loaded components of the on-load tap-changer. Since, due to the natural convection within the oil vessel, the heat sink is forced to flow around the warmer insulating oil rising upwards, the targeted positioning of the cooling device in the upper region of the oil vessel of the on-load tap-changer ensures an additional increase in efficiency of the heat exchange between the cold cooling medium and the warm insulating oil. Depending on the existing temperature difference between the cooling medium and insulating oil, the cooling efficiency can be selectively controlled both via the volume flow of the cooling medium and the temperature of the same. As cooling media can in principle all fluids can be used, which have a large specific heat capacity, in particular the insulating oil itself.
Nach einer bevorzugten Ausführungsform der Erfindung ist der Kühlkörper der According to a preferred embodiment of the invention, the heat sink is the
Kühleinrichtung als eine im Isolieröl des Ölgefäßes eingetauchte Spirale ausgebildet, wobei die jeweiligen Enden der Spirale einmal den Zufluss und das andere mal den Abfluss für das Kühlmedium bilden. Durch die spiralförmige Ausgestaltung des Kühlkörpers wird eine Cooling device formed as a immersed in the insulating oil of the oil vessel spiral, wherein the respective ends of the spiral once form the inflow and the other times the outflow for the cooling medium. Due to the helical configuration of the heat sink is a
Vergrößerung der mit warmen Isolieröl umströmbaren Oberfläche geschaffen, was zu einer Steigerung der Kühlleistung der Kühleinrichtung beiträgt. Für spezielle Anwendungen, die ein sehr häufiges Umschalten zwischen den verschiedenen Wicklungsanzapfungen des Enlarged created with warm insulating oil surface, which contributes to an increase in the cooling capacity of the cooling device. For special applications, the very frequent switching between the different winding taps of the
Stufentransformators erforderlich machen, kann die spiralförmige Ausgestaltung des Stepped transformer may require the spiral configuration of the
Kühlkörpers im Rahmen dieser Ausführungsform auch doppelt, oder mehrfach, d.h. drei-, vier- oder fünffach, ausgeführt werden. Neben der Gesamtanzahl der Spiralen kann die Kühleffizienz der Kühleinrichtung zudem über die Anzahl der einzelnen Windungen der jeweiligen Spirale beeinflusst werden. Die Kühleinrichtung ist daher weder auf die in diesem Ausführungsbeispiel abgebildete Anzahl der Spiralen, noch der dargestellten Anzahl der Windungen begrenzt. Heatsink in the context of this embodiment also double, or multiple, i. three, four or five times. In addition to the total number of spirals, the cooling efficiency of the cooling device can also be influenced by the number of individual turns of the respective spiral. The cooling device is therefore limited neither to the number of spirals shown in this embodiment, nor the number of turns shown.
Nach einer weiteren bevorzugten Ausführungsform ist die Kühleinrichtung mit separat zirkulierendem Kühlmedium in den am Laststufenschalter angeordneten Schirmringen integriert. Derartige Schirmringe für Laststufenschalter sind beispielsweise aus der auf die Anmelderin zurückgehenden DE10011966 bekannt. Die Integration der Kühleinrichtung in die ohne hin vorhanden Schirmringe des Laststufenschalters bietet durch die funktionale Zusammenführung von kühlenden und dielektrischen Eigenschaften in einem einzigen , Bauteil, nämlich den weiterentwickelten Schirmringen, eine besonders platzsparende Lösung für die zusätzlich vorgesehene Kühleinrichtung mit separatem Kühlmedium. According to a further preferred embodiment, the cooling device is integrated with separately circulating cooling medium in the arranged on the on-load tap changer shield rings. Such umbrella rings for on-load tap-changers are known, for example, from DE10011966, which is based on the Applicant. The integration of the cooling device into the without existing shield rings of the on-load tap-changer offers a particularly space-saving solution for the additionally provided cooling device with separate cooling medium through the functional combination of cooling and dielectric properties in a single component, namely the further developed shield rings.
Nach einer nochmals weiteren Ausführungsform ist die zusätzliche Kühleinrichtung als ein in der seitlichen Wandung des Stufenschalterkopfes integriertes umlaufendes According to yet another embodiment, the additional cooling device is a circulating integrated in the lateral wall of the tap changer head
Rohrleitungssystem ausgebildet. Da in dieser Ausführungsform keine zusätzlichen Zu- bzw. Ableitungen für das zirkulierende Kühlmedium des Kühlkörpers innerhalb des Ölgefäßes geführt werden müssen und zudem kein separater Kühlkörper im Ölgefäß vorgesehen ist, wird hierdurch ein besonders einfacher Ein- und Ausbau des Lastumschaltereinsatzes im Wartungsfall möglich.  Pipe system formed. Since in this embodiment, no additional supply or discharge lines for the circulating cooling medium of the heat sink must be performed within the oil vessel and also no separate heat sink is provided in the oil vessel, this is a particularly simple installation and removal of the diverter switch insert for maintenance possible.
Nach einer wiederum weiteren bevorzugten Ausführungsform der Erfindung ist die zusätzliche Kühleinrichtung als Kühlschlange an dem das separate Ölgefäß nach oben hin i abdichtenden Deckel des Laststufenschalters angeordnet. Die schlangenartige According to yet another preferred embodiment of the invention, the additional cooling device is a cooling coil on which the separate oil vessel upwards i arranged sealing cover of the on-load tap-changer. The serpentine
Ausgestaltung der Kühleinrichtung führt zu einer Vergrößerung der mit warmen Isolieröl in Kontakt tretenden Oberfläche und damit zu einer Verbesserung der Kühlleistung der Design of the cooling device leads to an enlargement of the passing with warm insulating oil in contact surface and thus to an improvement in the cooling performance of
Kühleinrichtung. Auf besonders einfache Weise können die Anschlüsse für den Zu- bzw. Abfluss des separaten Kühlmediums ebenfalls durch den Deckel nach außen geführt werden. Cooling device. In a particularly simple manner, the connections for the inflow and outflow of the separate cooling medium can also be performed by the lid to the outside.
Zwar ist es beispielsweise bereits aus der DE 10 2008 003 672 oder der WO 01/37292 bekannt, das Isolieröl von Stufentransformatoren mittels extern angebrachten Kühlradiatoren und mit diesen zusammenwirkenden weiteren Lüftern zu kühlen, jedoch eignet sich das Verfahren in mehrfacher Hinsicht nicht für den Einsatz bei Laststufenschaltern. Although it is already known, for example, from DE 10 2008 003 672 or WO 01/37292 to cool the insulating oil of tapped transformers by means of externally mounted cooling radiators and with these cooperating other fans, however, the method is not suitable for use in several respects load tap changers.
Erfindungsgemäß wird nicht, wie aus dem Stand der Technik bekannt, das Isolieröl selbst gekühlt, sondern ein Wärmeaustausch über die zusätzliche Kühleinrichtung mit separaten Kühlmedium erzwungen. So muss in beiden genannten Publikationen mittels einer aufwändigen Pumpenkonstruktion sichergestellt werden, dass ein Zwangsaustausch zwischen dem in den Kühlradiatoren befindlichen Isolieröl einerseits und dem restlichen, weitaus größeren Volumen des Isolieröls, welches sich noch im Transformatortank befindet, stattfindet. Zudem gilt es zu berücksichtigen, dass beim Ein- bzw. Ausschalten der According to the invention, as is known from the prior art, the insulating oil itself is not cooled, but forced a heat exchange through the additional cooling device with separate cooling medium. Thus, in both publications mentioned must be ensured by means of a complex pump design that a forced exchange takes place between the located in the cooling radiators insulating oil on the one hand and the remaining, much larger volume of insulating oil, which is still in the transformer tank. In addition, it should be noted that when switching on or off the
Pumpenkonstruktion Druckschwankungen innerhalb des Isolieröls auftreten, die mit dem Stufenschalter in Wirkverbindung stehende Schutzeinrichtungen fehlauslösen könnten. Durch die erfindungsgemäße Lösung, im Bereich des Stufenschalterkopfes eine mit einem separat zirkulierenden Kühlmedium durchströmbare Kühleinrichtung vorzusehen, die als geschlossener Kühlkreislauf ausgebildet ist und mittels der die überschüssige Wärmeenergie aus dem Isolieröl des Ölgefäßes des Laststufenschalters abgeführt werden kann, werden diese Nachteile wirkungsvoll vermieden und erstmals eine für einen Laststufenschalter einsetzbare Kühleinrichtung geschaffen.  Pump design Pressure fluctuations within the insulating oil occur, which could misapplied protective devices operatively connected to the tap changer. The inventive solution to provide in the field of tap changer head with a separately circulating cooling medium durchströmbare cooling device, which is designed as a closed cooling circuit and by means of which the excess heat energy from the insulating oil of the oil vessel of the on-load tap-changer can be dissipated, these disadvantages are effectively avoided and for the first time created for an on-load tap changer usable cooling device.
Die Erfindung soll nachstehend beispielhaft an Hand von Zeichnungen noch näher erläutert werden. The invention will be explained in more detail by way of example with reference to drawings.
Es zeigen: Show it:
Figur 1 eine schematische Darstellung eines Teiles eines erfindungsgemäßen Figure 1 is a schematic representation of a part of an inventive
Laststufenschalters mit Kühiungseinrichtung  On-load tap-changer with cooling device
Figuren 2a und 2b eine bevorzugte Ausführungsform eines erfindungsgemäßen  Figures 2a and 2b, a preferred embodiment of an inventive
Laststufenschalters mit Kühiungseinrichtung Figuren 3a und 3b eine weitere bevorzugte Ausführungsform eines erfindungsgemäßenOn-load tap-changer with cooling device FIGS. 3a and 3b show a further preferred embodiment of a device according to the invention
Laststufenschalters mit Kühlungseinrichtung On-load tap-changer with cooling device
Figur 4 eine nochmals weitere bevorzugte Ausführungsform eines  Figure 4 shows yet another preferred embodiment of a
erfindungsgemäßen Laststufenschalters mit Kühleinrichtung.  Inventive load tap changer with cooling device.
Ein in Figur 1 aus Übersichtlichkeitsgründen nur zum Teil gezeigter Laststufenschalter zur unterbrechungslosen Umschaltung zwischen verschiedenen Wicklungsanzapfungen eines Stufentransformators weist einen im wesentlichen flanschartig ausgebildeten An on-load tap-changer, shown only partially in FIG. 1 for reasons of clarity, for uninterrupted switching between different winding taps of a tapped transformer has a substantially flange-like design
Stufenschalterkopf 1 sowie ein sich am unteren Ring des Stufenschalterkopfes 1 abdichtend anschließendes ölgefäß 2 auf, das als dielektrischer Isolierstoffzylinder ausgebildet ist. Tap changer head 1 and a sealing on the lower ring of the tap changer head 1 subsequent oil vessel 2, which is designed as a dielectric insulating material.
Innerhalb des separierten Ölgefäßes 2, vollständig eingetaucht im Isolieröl, befindet sich der in dieser Darstellung nicht erkennbare eigentliche Laststufenschalter. Im Bereich des Within the separated oil vessel 2, completely immersed in the insulating oil, is not recognizable in this illustration actual on-load tap-changer. In the area of
Stufenschalterkopfes 1 , an dessen inneren seitlichen Wandung des unteren Rings, ist eine als doppelte Spirale ausgebildete erfindungsgemäße Kühleinrichtung 3 angeordnet, die mit einem separat zirkulierenden Kühlmedium durchströmbar ist, so dass damit die Tap changer head 1, on the inner lateral wall of the lower ring, a designed as a double spiral cooling device according to the invention 3 is arranged, which is traversed by a separately circulating cooling medium, so that so that
überschüssige Wärmeenergie nach dem physikalischen Prinzip des Wärmeaustausches aus dem Isolieröl des ölgefäßes 2 abgeführt werden kann. Über entsprechende Excess heat energy can be removed from the insulating oil of the oil vessel 2 according to the physical principle of heat exchange. About appropriate
Rohrleitungsanschlüsse 4.1 und 4.2, die am Flanschring des Stufenschalterkopfes 1 angeordnet sind, wird eine Versorgung der Kühleinrichtung 3 mit separatem Kühlmedium sichergestellt. Je nach vorhandenem Temperaturunterschied zwischen Kühlmedium und Isolieröl kann die Kühleffizienz sowohl über den Volumenstrom des separaten Kühlmediums, als auch die Temperatur des Selbigen gezielt gesteuert werden. Auf Grund der auftretenden natürlichen Konvektion, d. h. dem Aufstieg des warmen Isolieröls innerhalb des ölgefäßes 2, ist durch die gezielte Positionierung der Kühleinrichtung 3 im Bereich des Pipe connections 4.1 and 4.2, which are arranged on the flange of the tap changer head 1, a supply of the cooling device 3 is ensured with a separate cooling medium. Depending on the existing temperature difference between the cooling medium and insulating oil, the cooling efficiency can be controlled selectively both via the volume flow of the separate cooling medium and the temperature of the same. Due to the occurring natural convection, d. H. the rise of the warm insulating oil within the oil vessel 2, by the targeted positioning of the cooling device 3 in the region of
Stufenschalterkopfes 1 sichergestellt, dass diese stets vom warmen Isolieröl zwangsumspült wird.  Tap-changer head 1 ensures that it is always flushed by the warm insulating oil.
Die Figuren 2a und 2b zeigen eine bevorzugte Ausführungsform der Erfindung, bei der die Kühleinrichtung 3 in wenigstens einem Schirmring 5 des Laststufenschalters integriert ist. Derartige Schirmringe 5 sind grundsätzlich bekannte Bauteile nach dem Stand der Technik und werden beispielsweise in der DE 10011966 der Anmelderin beschrieben. Der Schirmring 5 der Figuren 2a und 2b ist dabei als horizontal aufgeschnittener, rotationsymmetrischer Toroid ausgebildet, der an seiner Innenseite ein im wesentlichen spiralförmig umlaufend angeordnetes hohles Rechteckprofil aufweist, das die Kühleinrichtung 3 bildet. Über die jeweiligen Rohrleitungsanschlüsse 4.1 und 4.2, die sich an den entsprechenden Enden der als Rechteckprofil ausgebildeten Kühleinrichtung 3 befinden, kann das separate Kühlmedium der Kühleinrichtung 3 zu- bzw. abgeführt werden. Die Figur 3a zeigt eine weitere bevorzugte Ausführungsform, bei der die Kühleinrichtung 3 in der seitlichen Wandung des Stufenschalterkopfes 1 integriert und dabei als ein in mehreren horizontalen Ebenen umlaufendes Rohrsystem ausgebildet ist. Im Unterschied zu der Figur 3a ist in der Figur 3b die Kühleinrichtung 3 nicht als ein in mehreren horizontalen Ebenen umlaufendes Rohrsystem ausgebildet, sondern als ein in der seitlichen Wandung des Stufenschalterkopfes umlaufendes Hohlprofil, das im wesentlichen das durch die Figures 2a and 2b show a preferred embodiment of the invention, in which the cooling device 3 is integrated in at least one shield ring 5 of the on-load tap changer. Such umbrella rings 5 are basically known components according to the prior art and are described for example in DE 10011966 of the applicant. The shield ring 5 of Figures 2a and 2b is formed as a horizontally cut, rotationally symmetric toroid having on its inner side a substantially spirally encircling arranged hollow rectangular profile, which forms the cooling device 3. The separate cooling medium of the cooling device 3 can be supplied or removed via the respective pipe connections 4.1 and 4.2, which are located at the corresponding ends of the cooling device 3 designed as a rectangular profile. FIG. 3 a shows a further preferred embodiment in which the cooling device 3 is integrated in the lateral wall of the tap changer head 1 and is designed as a piping system revolving in several horizontal planes. In contrast to FIG. 3 a, in FIG. 3 b the cooling device 3 is not designed as a tubular system revolving in several horizontal planes, but rather as a hollow profile revolving in the lateral wall of the tap changer head
Wandstärke zur Verfügung stehende Volumen als Hohlprofil zum Durchströmen mit separatem Kühlmedium nutzt. Der Zu- bzw. Ablauf des separaten Kühlmediums erfolgt auch in dieser Ausführungsform über die entsprechenden Rohrleitungsanschlüsse 4.1 und 4.2, wobei in dieser Figur auf Grund der Darstellungsweise nur einer der beiden Rohranschlüsse, nämlich 4.1 , sichtbar ist. Am unteren Ende der seitlichen Wandung des Stufenschalterkopfes befindet sich kontaktschlüssig, d. h. dichtend, angeordnet das ölgefäß 2, in dem sich der eigentliche, aber aus Übersichtlichkeitsgründen hier nicht dargestellte, Laststufenschalter befindet. Wall thickness uses available volume as a hollow profile to flow through with a separate cooling medium. The inlet and outlet of the separate cooling medium is also in this embodiment via the corresponding pipe connections 4.1 and 4.2, in this figure, due to the representation of only one of the two pipe connections, namely 4.1, is visible. At the lower end of the lateral wall of the tap changer head is located contact-tight, d. H. sealing, arranged the oil vessel 2, in which the actual, but not shown for reasons of clarity, on-load tap-changer is located.
Figur 4 zeigt die Unterseite eines im wesentlichen kreisförmigen Deckels 5, der eine zusätzliche Kühleinrichtung 3 nach Art einer Kühlschlange aufweist. Die schlangenartige Ausgestaltung der Kühleinrichtung 3 ist derart an die Unterseite des Deckels 5 angepasst, dass sie mittels mehrerer Windungen und Biegungen eine möglichst große Länge zur Oberflächenvergrößerung erreicht, was zu einer Verbesserung der mit warmen Isolieröl in Kontakt tretenden Oberfläche führt. Die Rohrleitungsanschlüsse 4.1 und 4.2 dienen in diesem Ausführungsbeispiel sowohl für den Zu- und Abfluss des separaten Kühlmediums, als auch zur Befestigung der Kühleinrichtung 3 an dem Deckel 5. Je nach Dimensionierung der Kühleinrichtung 3 ist diese noch mittels weiterer Befestigungspunkte an der Unterseite des Deckels 5 befestigt. Figure 4 shows the underside of a substantially circular lid 5, which has an additional cooling device 3 in the manner of a cooling coil. The serpentine configuration of the cooling device 3 is adapted to the underside of the lid 5 such that it achieves the greatest possible length for increasing the surface area by means of several turns and bends, which leads to an improvement in the surface coming into contact with warm insulating oil. The pipe connections 4.1 and 4.2 serve in this embodiment both for the inflow and outflow of the separate cooling medium, as well as for fixing the cooling device 3 to the lid 5. Depending on the dimensions of the cooling device 3, this is still by means of further attachment points on the underside of the lid fifth attached.

Claims

Patentansprüche claims
1. Laststufenschalter zur unterbrechungslosen Umschaltung zwischen verschiedenen Wicklungsanzapfungen eines Stufentransformators, 1. On-load tap-changer for uninterrupted switching between different winding taps of a tapped transformer,
aufweisend Mittel zur Anwahl der jeweiligen Wicklungsanzapfung des Stufentransformators, auf die umgeschaltet werden soll, comprising means for selecting the respective winding tapping of the tapped transformer to be switched to
weiterhin Mittel zur eigentlichen Umschaltung von der beschalteten auf die neue, angewähltefurthermore means for actually switching from the wired to the new, selected
Wicklungsanzapfung, winding tap,
mindestens einen Überschaltwiderstand, at least one switching resistor,
mindestens einen am Lastumschalter angeordneten Schirmring zur dielektrischen at least one arranged on the diverter switch screen ring to the dielectric
Abschirmung elektrischer Felder, Shielding of electrical fields,
einen mit öl befüllten Isolierstoffzylinder, der wenigstens den Lastumschalter aufnimmt, einen im oberen Bereich des Isolierstoffzylinder angeordneten Stufenschalterkopf, und einen den Isolierstoffzylinder abdichtenden Deckel an insulating cylinder filled with oil, which accommodates at least the diverter switch, a tap changer head arranged in the upper region of the insulating cylinder, and a lid sealing the insulating cylinder
dadurch gekennzeichnet, characterized,
dass im oberen Bereich des Stufenschalterkopfes (1) eine mit einem separat zirkulierenden Kühlmedium durchströmbare Kühleinrichtung (3) vorgesehen ist, die als geschlossener Kühlkreislauf ausgebildet ist, derart, dass damit die überschüssige Wärmeenergie aus dem Isolieröl des Ölgefäßes (2) des Laststufenschalters an andere Medien, wie Luft oder Fluid, abgeführt werden kann. in that in the upper region of the tap changer head (1) there is provided a cooling device (3) through which a cooling medium flows separately, which is designed as a closed cooling circuit such that the excess heat energy from the insulating oil of the oil receptacle (2) of the on-load tap changer is transferred to other media , such as air or fluid, can be dissipated.
2. Vorrichtung nach Anspruch 1 , 2. Apparatus according to claim 1,
dadurch gekennzeichnet,  characterized,
dass die Kühleinrichtung (3) als eine im Bereich des Stufenschalterkopfes (1 ) angeordnete Spirale ausgebildet ist.  the cooling device (3) is designed as a spiral arranged in the region of the tap changer head (1).
3. Vorrichtung nach Anspruch 1 , 3. Apparatus according to claim 1,
dadurch gekennzeichnet,  characterized,
dass die Kühleinrichtung (3) in den mindestens einen Schirmring (5) integriert ist. the cooling device (3) is integrated in the at least one shielding ring (5).
4. Vorrichtung nach Anspruch 1 , 4. Apparatus according to claim 1,
dadurch gekennzeichnet, characterized,
dass die Kühleinrichtung (3) in der seitlichen Wandung des Stufenschalterkopfes (1) integriert ist. the cooling device (3) is integrated in the lateral wall of the tap changer head (1).
5. Vorrichtung nach Anspruch 1 , 5. Apparatus according to claim 1,
dadurch gekennzeichnet, characterized,
dass die Kühleinrichtung (3) an der Unterseite des Deckels (5) angeordnet ist. the cooling device (3) is arranged on the underside of the cover (5).
6. Vorrichtung nach einem der Ansprüche 1 bis 5, 6. Device according to one of claims 1 to 5,
dadurch gekennzeichnet, characterized,
dass als Kühlmedium ein Fluid ist. that as a cooling medium is a fluid.
EP10794882.0A 2010-01-30 2010-12-09 On-load tap changer Active EP2529382B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010006308 DE102010006308A1 (en) 2010-01-30 2010-01-30 OLTC
PCT/EP2010/007503 WO2011091829A1 (en) 2010-01-30 2010-12-09 On-load tap changer

Publications (2)

Publication Number Publication Date
EP2529382A1 true EP2529382A1 (en) 2012-12-05
EP2529382B1 EP2529382B1 (en) 2014-10-01

Family

ID=43707910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10794882.0A Active EP2529382B1 (en) 2010-01-30 2010-12-09 On-load tap changer

Country Status (6)

Country Link
EP (1) EP2529382B1 (en)
CN (1) CN102834884B (en)
DE (1) DE102010006308A1 (en)
ES (1) ES2527289T3 (en)
HK (1) HK1173554A1 (en)
WO (1) WO2011091829A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113345687B (en) * 2021-04-27 2022-07-15 中韶电气股份有限公司 Vegetable oil transformer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025661C2 (en) * 1980-07-07 1982-11-04 Transformatoren Union Ag, 7000 Stuttgart Device for utilizing the heat loss from internally liquid-cooled transformers or inductors
DE4006985A1 (en) * 1989-03-14 1990-09-20 Elin Energieversorgung Steeping transformer loud switching device - has screening rings acting as shunt resistances parallel to permanent contacts
DE4423071C1 (en) * 1994-07-01 1996-03-21 Reinhausen Maschf Scheubeck Gas-insulated tap changer
BR0015595A (en) 1999-11-17 2002-07-09 Trexco Llc System and method for reducing the temperature of a refrigerant that flows through a power transformer cooling system
DE10011966C1 (en) 2000-03-11 2001-06-28 Reinhausen Maschf Scheubeck Step switch has housing with fixed inner contacts, inner driven switch column with bearing block for contact carrier or contact carrier directly mounted via upper, lower two-part clamp rings
CN2755751Y (en) * 2004-11-24 2006-02-01 上海华明电力设备制造有限公司 Flange structure of bell loaded tap switch
JP2008092727A (en) * 2006-10-04 2008-04-17 Toyota Motor Corp Drive unit for vehicle
DE102008003672A1 (en) 2008-01-09 2009-07-16 Areva Energietechnik Gmbh Electric transformer unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011091829A1 *

Also Published As

Publication number Publication date
EP2529382B1 (en) 2014-10-01
ES2527289T3 (en) 2015-01-22
DE102010006308A1 (en) 2011-08-04
CN102834884A (en) 2012-12-19
WO2011091829A1 (en) 2011-08-04
CN102834884B (en) 2015-07-08
HK1173554A1 (en) 2013-05-16

Similar Documents

Publication Publication Date Title
EP2460168B1 (en) Arrangement comprising a stepping switch and a control transformer
DE102016200744A1 (en) Transformer with temperature-dependent cooling
WO2008083838A1 (en) Semiconductor module for connecting to a transformer winding, and transformer arrangement
DE102008004342B3 (en) Arrangement with at least one electrical winding
EP2684202A2 (en) Electrical component comprising at least one electrical power loss source arranged in a casting compound and a cooling device
EP2529382B1 (en) On-load tap changer
DE102011007334A1 (en) Liquid-cooled inductive component
DE102004018963B4 (en) magnetizing
EP3316268B1 (en) Transformer with heated radiator element
WO2014108244A1 (en) On-load tap changer
DE102010020138B4 (en) Diverter for a transformer
WO2015124511A1 (en) Switching unit
EP3494584B1 (en) Electrical device having a plurality of cooling units
WO2014108246A1 (en) On-load tap changer comprising a connection to the oil volume of a transformer
WO2009050028A1 (en) Electric component, particularly an electric inductor
DE102004046442A1 (en) Arrangement for the protection of electronic components
DE19912280C1 (en) Transformer and method for cooling a transformer
DE1057219B (en) Medium and high frequency power transformer
EP3685411B1 (en) Winding assembly
EP3420570B1 (en) Electrical high-voltage device with a regulating winding group
DE202011110750U1 (en) Electrical component with at least one arranged in a potting electrical power loss source and a cooling device
DE563899C (en) Resistance switch
WO2014108245A1 (en) On-load tap changer comprising a connection to the oil volume of a transformer
DE102017215460A1 (en) Arrangement for connection to a high-voltage network with adjustable impedance
DE1050403B (en) Inductance arrangement with conductor parts that can be switched on and off by a displaceable tap

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: 20120830

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1173554

Country of ref document: HK

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

INTG Intention to grant announced

Effective date: 20140811

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 689879

Country of ref document: AT

Kind code of ref document: T

Effective date: 20141015

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502010008007

Country of ref document: DE

Effective date: 20141113

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2527289

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20150122

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20141001

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

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

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150101

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150202

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150201

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150102

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

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

Ref country code: BE

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

Effective date: 20141231

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010008007

Country of ref document: DE

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

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141209

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20150702

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: HK

Ref legal event code: GR

Ref document number: 1173554

Country of ref document: HK

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

Ref country code: CH

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

Effective date: 20141231

Ref country code: LI

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

Effective date: 20141231

Ref country code: IE

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

Effective date: 20141209

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

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: 20151209

Year of fee payment: 6

Ref country code: GB

Payment date: 20151221

Year of fee payment: 6

Ref country code: BG

Payment date: 20151217

Year of fee payment: 6

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

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

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

Ref country code: FR

Payment date: 20151218

Year of fee payment: 6

Ref country code: ES

Payment date: 20151218

Year of fee payment: 6

Ref country code: SE

Payment date: 20151222

Year of fee payment: 6

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

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

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

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

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

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20101209

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

Ref country code: IT

Payment date: 20151222

Year of fee payment: 6

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

Ref country code: TR

Payment date: 20141209

Year of fee payment: 5

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 689879

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151209

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: 20151209

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502010008007

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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

Effective date: 20161209

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

Ref country code: SE

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

Effective date: 20161210

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170831

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

Effective date: 20161209

Ref country code: FR

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

Effective date: 20170102

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: 20161209

Ref country code: DE

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

Effective date: 20170701

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: 20161210

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

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

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

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141001

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20181107

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

Ref country code: BG

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

Effective date: 20170808