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EP1997117B1 - Connecting element for an electric shielding assembly - Google Patents

Connecting element for an electric shielding assembly Download PDF

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Publication number
EP1997117B1
EP1997117B1 EP07726917A EP07726917A EP1997117B1 EP 1997117 B1 EP1997117 B1 EP 1997117B1 EP 07726917 A EP07726917 A EP 07726917A EP 07726917 A EP07726917 A EP 07726917A EP 1997117 B1 EP1997117 B1 EP 1997117B1
Authority
EP
European Patent Office
Prior art keywords
connecting element
tubular
electrical shield
barriers
bushing
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.)
Not-in-force
Application number
EP07726917A
Other languages
German (de)
French (fr)
Other versions
EP1997117A1 (en
Inventor
Jens Hoppe
Peter Heinzig
Thomas Kuderna
Lambert Schummer
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to PL07726917T priority Critical patent/PL1997117T3/en
Publication of EP1997117A1 publication Critical patent/EP1997117A1/en
Application granted granted Critical
Publication of EP1997117B1 publication Critical patent/EP1997117B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens

Definitions

  • the invention relates to a connecting element for connecting a first electrical shielding arrangement arranged around a cable feedthrough with at least one tubular insulating barrier arranged around the cable feedthrough and at least one second electrical shielding arrangement arranged around the cable feedthrough with at least one tubular insulating barrier arranged around the cable feedthrough.
  • the invention also relates to an electrical shield for a cable feedthrough and to a method for producing an electrical shield for a cable feedthrough.
  • the electrical connection of electrical systems requires a high technical effort for the electrical shielding of the incoming and outgoing voltage lines.
  • electrical shielding must be provided at all times and over the entire cable routing.
  • the wiring is arranged in a grounded and oil-containing dome of the corresponding electrical system.
  • a capacitive control of the electric field is achieved by means of a capacitor arranged around the separation point.
  • a position in the axial direction relative to the line bushing is defined as a function of the radii of the capacitor body arranged one inside another, which is designed as a kind of straight truncated cone aligned along the line bushing.
  • the DE 690 12 258 T2 a capacitor inner wall for field control of the line connection of a transformer bushing.
  • the capacitor insulating wall prevents a rollover of the electrical voltage in which this barrier is suitable for capacitive and resistive control of the electric field and dimensioned such that the occurring voltages and field strengths in the respective area do not lead to destruction of the barriers.
  • Object of the present invention is therefore to provide an electrical shield to a cable feedthrough, which ensures a quick and easy arrangement of a continuous shielding around the cable feedthrough, even with structurally unfavorable conditions within a boiler room.
  • a connecting element is slidable in the electrical shielding arrangements and has at least two tubular isolation barriers, wherein the two tubular isolation barriers are interconnected.
  • the connecting element bridges a possible distance between the barriers of the first and the second electrical shielding arrangement through the interconnected isolation barriers. At the same time ensures the connection of the two isolation barriers, that on the one hand a corresponding electrical strength as electrical shielding and on the other a mechanical stability of the connecting element is ensured.
  • the interconnected isolation barriers are slidable in the Ablean angelen, so that a simple and fast arrangement of the electrical shield around the cable feedthrough is possible.
  • tubular means that the elements correspondingly named have a longitudinal extension in the axial direction of the cable guide and are formed over a virtually circular cross-section.
  • the respectively named element need not be completely formed as a kind of tube, but may also have segmental recesses and partial openings.
  • circular within the meaning of the invention also includes deviating cross sections, such. As elliptical, triangular or polygonal shapes.
  • the two tubular isolation barriers can each be pushed into the tubular insulating barriers of the first and the second electrical shielding arrangement.
  • a direct and continuous construction of a barrier arrangement is ensured, even if the entire shield of the line feedthrough consists of several segments.
  • the tubular insulation barriers are connected to one another by at least one spacer.
  • the tubular isolation barriers and / or the spacer consist at least partially of an isolation material, in particular pressboard.
  • the length of the tubular isolation barriers is different. On the one hand, this ensures the best possible fitting of the connecting element to a gap between a first and a second shielding arrangement. At the same time can with the radially related to the cable bushing graded isolation barrier lengths of the connecting element occurring electrical and mechanical loads are compensated.
  • graduated insulation barrier systems can facilitate the insertion of the connecting element into a shielding arrangement in that the connecting element is guided through individual insulation barriers along correspondingly corresponding guides of the shielding arrangements.
  • the spacer is shaped such that, on the one hand, the intermediate distances between the tubular insulation barriers of the side facing the first electrical shielding arrangement and the spacings of the barriers of the first electrical shielding arrangement correspond. Alternatively or additionally, the intermediate distances between the tubular insulation barriers of the side facing the second electrical shielding arrangement and the intermediate distances of the barriers of the second electrical shielding arrangement may also correspond. Even with different barrier spacings in the first and second shielding arrangements, appropriately shaped spacers between the isolation barriers ensure a continuous connection of the barrier assembly. In this case, the isolation barriers are then not aligned parallel and concentric with respect to the axis of rotation of the leadthrough, but have e.g. a cone-shaped arrangement with respect to the line feedthrough on. The connecting element can thereby compensate for deviating interspaces of the individual barriers of the first shielding arrangement in comparison to the interspaces of the barriers of the second shielding arrangement.
  • the spacer is formed as a ring and / or logs.
  • at least two spacers equidistantly arranged on a circular surface of a tubular insulation barrier.
  • the tubular isolation barriers can be combined into modular elements and connected to one another via the spacers.
  • the connecting element according to the invention is constructed from modular elements, which in turn can be connected by spacers.
  • the spacers ensure mechanical stability of the respective module elements.
  • the connecting element can be composed of modular components of the isolation barriers in the form of module elements and easily assembled. Spacers arranged radially on the outside and / or inside can be used on the insulation barriers combined as module elements for the mutual fastening of the module elements.
  • the spacers can be plugged together as plug-in systems by means of corresponding plug-in devices, e.g. via a tongue and groove connection. Alternatively, the spacers between the module elements are secured by conventional fasteners, such as e.g. Screws, connectable.
  • an insulating liquid in particular an oil
  • an insulating liquid can circulate between the barriers of the first and the second electrical shielding arrangement, as well as between the tubular isolation barriers.
  • For connecting the first electrical shielding arrangement and the second electrical shielding arrangement serve a plurality of connecting elements for bridging a longitudinal distance between the first and second electrical shielding arrangement, wherein the connecting elements are pushed into one another.
  • a distance between two shielding arrangements can be bridged with a modular construction of a plurality of connecting elements, which are in each case slidable into one another. hereby is not only a modular design of the fasteners per se, but at the same time a modular system structure of several fasteners possible.
  • connection element for connecting the electrical shielding arrangement of a transformer winding can be connected to a line leadthrough of a transformer housing.
  • the distance between the individual isolation barriers for isolation reasons no greater than 300 mm.
  • a plurality of spacers relative to the line feedthrough radially and / or axially offset from one another are arranged between the isolation barriers.
  • the connecting element can be arranged by means of at least one spacer on a control electrode arranged around the line bushing.
  • the object is also solved by the features of claim 16.
  • the method for producing an electrical shield around a line leadthrough first of all the production of a first electrical shielding arrangement with at least one tubular insulating barrier arranged around the line leadthrough is provided.
  • a connecting element with at least two tubular, at least partially interconnected isolation barriers is inserted into the first electrical shielding arrangement and then fixed.
  • the attachment can be done by a mechanical tension of the barriers against each other and / or by an external attitude.
  • the connecting element with a second electrical shielding arrangement with at least one arranged around the cable feedthrough connected tubular insulating barrier is further achieved by the electrical shield to a line feedthrough according to claim 17.
  • FIG. 1 1 shows a schematic side view of the connecting element 1 according to the invention between a first electrical shielding arrangement 2 of a transformer winding 14 (not shown) and a second electrical shielding arrangement 3 for a conductor feedthrough from the transformer housing 13.
  • the first electrical shielding arrangement 2 has barrier elements 5a, 5b, 5c, 5d, 5e, which are arranged around a winding body 11.
  • a tubular control electrode 10 made of copper for insulation and field guidance is arranged around the leadthrough 4.
  • the control electrode 10 is partially insulated by a paper layer 9.
  • the leadthrough 4, the control electrode 10, the first and second shielding assembly 2,3 and the connecting element 1 are rotationally symmetric with respect to the axis shown as a dashed line.
  • rotational symmetry is not a limitation of the subject matter of the invention, since in the context of the invention also partially rotationally symmetrical or segmental barrier arrangements 5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d, 7a, 7b, 7c, 7d are claimed by the features of the claims.
  • the first electrical shielding arrangement 2 is arranged with respect to the control electrode 10 in the radial direction. Due to high-voltage requirements, the distance 12 between the windings 11 and the corresponding boiler wall 13 must have a certain minimum size. However, the barrier elements 5a, 5b, 5c, 5d, 5e of the first electrical shielding arrangement 2 are designed to be too short in order to ensure retraction of the transformer active part.
  • the second electrical shielding arrangement 3 for the cable feedthrough 4 likewise can not be inserted into the first electrical shielding arrangement 2. Therefore, the connecting element 1 according to the invention is inserted between the barrier system 5a, 5b, 5c, 5d, 5e of the first electrical shielding arrangement 2 and the barrier system 6a, 6b, 6c, 6d of the second electrical shielding arrangement 3.
  • the spacers 8 of the connecting element 1 can be chosen such that in each case a precise insertion of the tubular isolation barriers 7a, 7b, 7c, 7d in the respective corresponding openings of the first 5a, 5b, 5c, 5d, 5e or the second barrier system 6a, 6b, 6c, 6d guaranteed is.
  • this barrier arrangement 5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d, 7a, 7b, 7c, 7d furthermore, an oil can circulate as insulation medium. Also, a sufficiently free oil path to the boiler wall 13 is ensured above the connecting element 1.
  • the spacers 8 are formed as rings or blocks.
  • the figure Fig. 2 shows different embodiments of the connecting elements 1.
  • the axial length of the respective tubular isolation barriers 7a, 7b, 7c, 7d may be different.
  • the spacers 8 are advantageously positioned differently between the tubular isolation barriers 7a, 7b, 7c, 7d in the radial and / or axial direction, with respect to the longitudinal extension of the cable feedthrough 4. In this way, a telescoping of the isolation barriers 7a, 7b, 7c, 7d into which the barrier system 5a, 5b, 5c, 5d, 5e of the first electrical shielding arrangement 2 and the barrier system 6a, 6b, 6c, 6d of the second electrical shielding arrangement 3 is ensured.
  • FIG. 3 shows a schematic plan view of a HVDC transformer with inventive connecting element 1.
  • the formed as chimneys barriers 5a, 5b, 5c, 5d, 5e of the first electrical shielding arrangement 2 on the windings 11 of the HVDC transformer are by means of the connecting element 1 with the barrier system 6a, 6b, 6c, 6d connected to the line version of the transformer housing.
  • This ensures that the electrical fields generated during operation are guided within the barrier arrangement 5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d, 7a, 7b, 7c, 7d.
  • the connecting element 1 moreover ensure that the first electrical shielding arrangement 2 is accurately connected to the second electrical shielding arrangement 3 as a boiler design.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Insulating Bodies (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Multi-Conductor Connections (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Insulated Conductors (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Processing Of Terminals (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

A connecting element between a first electric shielding assembly that surrounds a cable feedthrough and includes at least one tubular insulating barrier that surrounds the cable feedthrough and at least one second electric shielding assembly that surrounds the cable feedthrough and includes at least one tubular insulating barrier that surrounds the cable feedthrough. A continuous barrier system around the cable feedthrough is provided by a connecting element with at least two interconnecting insulating barriers, which can be inserted into the shielding assemblies, even if the shielding assembly is configured from sub-segments. The disclosure also relates to an electric shield for a cable feedthrough and to a method for producing an electric shield for a cable feedthrough.

Description

Die Erfindung betrifft ein Verbindungselement zur Verbindung einer ersten um eine Leitungsdurchführung angeordneten elektrischen Abschirmungsanordnung mit mindestens einer um die Leitungsdurchführung angeordneter, rohrförmig isolierender Barriere und mindestens einer zweiten um die Leitungsdurchführung angeordneten elektrischen Abschirmungsanordnung mit mindestens einer um die Leitungsdurchführung angeordneter rohrförmig isolierender Barriere. Ebenfalls betrifft die Erfindung eine elektrische Abschirmung für eine Leitungsdurchführung und ein Verfahren zur Herstellung einer elektrischen Abschirmung für eine Leitungsdurchführung.The invention relates to a connecting element for connecting a first electrical shielding arrangement arranged around a cable feedthrough with at least one tubular insulating barrier arranged around the cable feedthrough and at least one second electrical shielding arrangement arranged around the cable feedthrough with at least one tubular insulating barrier arranged around the cable feedthrough. The invention also relates to an electrical shield for a cable feedthrough and to a method for producing an electrical shield for a cable feedthrough.

Die elektrische Verbindung von elektrischen Anlagen, insbesondere Hochspannungsanlagen, erfordert einen hohen technischen Aufwand für die elektrische Abschirmung der zu- und abführenden Spannungsleitungen. Insbesondere bei Ausleitungen und Durchführungen zu elektrischen Anlagen muss eine elektrische Abschirmung jederzeit und über die gesamte Leitungsführung gegeben sein. Insbesondere in Fällen, in denen die elektrische Anlage ein ölgekühlter Transformator beziehungsweise eine Drosselspule für hohe Betriebsspannungen ist, ist die Leitungsführung in einem geerdeten und Öl-enthaltenden Dom der entsprechenden elektrischen Anlage angeordnet.The electrical connection of electrical systems, in particular high-voltage systems, requires a high technical effort for the electrical shielding of the incoming and outgoing voltage lines. In particular, in the case of discharges and feedthroughs to electrical installations, electrical shielding must be provided at all times and over the entire cable routing. In particular, in cases where the electrical system is an oil-cooled transformer or a choke coil for high operating voltages, the wiring is arranged in a grounded and oil-containing dome of the corresponding electrical system.

Vor allem für hohe Gleichspannungen, wie sie bei Hochspannungsgleichstromübertragungen (HGÜ)auftreten, ist eine elektrische Abschirmung der Leitungsdurchführung unerlässlich. Die dabei auftretenden elektrischen und mechanischen Belastungen müssen durch das Öl-gefüllte Barrierensystem in Verbindung mit der Rohrelektrode jederzeit und für jeden möglichen Spannungsfall kompensiert werden. Dies ist nur mittels einer durchgehenden Barrierenanordnung als elektrische Abschirmung um die Leitungsdurchführung möglich.Especially for high DC voltages, as they occur in high-voltage direct current (HVDC) transmissions, electrical shielding of the cable bushing is essential. The occurring electrical and mechanical loads must be controlled by the oil-filled barrier system in conjunction with the pipe electrode at all times and for every possible voltage drop be compensated. This is only possible by means of a continuous barrier arrangement as electrical shielding around the cable feedthrough.

So beschreibt die DE 690 24 335 T2 eine Buchse für hohe Gleichspannungen. Gemäß der dortigen Erfindung wird mittels eines um die Trennstelle angeordneten Kondensatorkörpers eine kapazitive Steuerung des elektrischen Feldes erreicht. Dabei ist in Abhängigkeit der ineinander angeordneten Radien des Kondensatorkörpers eine Lage in axialer Richtung bezogen auf die Leitungsdurchführung definiert, die als eine Art gerader entlang der Leitungsdurchführung ausgerichteter Kegelstumpf ausgebildet ist.That's how it describes DE 690 24 335 T2 a socket for high DC voltages. According to the local invention, a capacitive control of the electric field is achieved by means of a capacitor arranged around the separation point. In this case, a position in the axial direction relative to the line bushing is defined as a function of the radii of the capacitor body arranged one inside another, which is designed as a kind of straight truncated cone aligned along the line bushing.

Des Weiteren offenbart die DE 690 12 258 T2 eine Kondensatorinnenwand zur Feldsteuerung der Leitungsverbindung einer Transformatordurchführung. Gemäß der dortigen Erfindung verhindert die Kondensatorisolierwand einen Überschlag der elektrischen Spannung, in dem diese Barriere zur kapazitiven sowie resistiven Steuerung des elektrischen Feldes geeignet und so bemessen ist, dass die auftretenden Spannungen und Feldstärken in dem jeweiligen Bereich nicht zu einer Zerstörung der Barrieren führen.Furthermore, the DE 690 12 258 T2 a capacitor inner wall for field control of the line connection of a transformer bushing. According to the invention there, the capacitor insulating wall prevents a rollover of the electrical voltage in which this barrier is suitable for capacitive and resistive control of the electric field and dimensioned such that the occurring voltages and field strengths in the respective area do not lead to destruction of the barriers.

Für die Konzeption eines Hochspannungstransformators, insbesondere eines HGÜ-Transformators, tritt das Problem auf, dass die Barrieren der elektrischen Abschirmung aufgrund der baulich immer größer werdenden Transformatorwicklungen und eines damit verbundenen zu geringen Abstandes zwischen den Transformatorwicklungen und der Kesselwand innerhalb eines gleich bleibenden Kesselgehäuses verkürzt werden müssen. Die aus isolationstechnischen Gründen notwendige Überlappung der zwischen der Abschirmung der Wicklungsseite und der Abschirmung der Ausleitung aus dem Kesselgehäuse ist daher bei einer herkömmlichen Bauweise nicht mehr ohne weiteres gegeben.For the design of a high-voltage transformer, in particular an HVDC transformer, the problem arises that the barriers of electrical shielding are shortened due to the structurally increasing transformer windings and an associated short distance between the transformer windings and the boiler wall within a constant boiler housing have to. The insulation-related reasons necessary overlap between the shielding of the winding side and the shield The discharge from the boiler housing is therefore no longer readily available in a conventional construction.

Nachteilig bei allen Lösungen im Stand der Technik ist, dass herkömmliche Abschirmungsanordnungen um eine Hochspannungsleitungsdurchführung, insbesondere für HGÜ-Anwendungen, keine vollständige Überlappung der Barrierensysteme der Abschirmungsanordnungen bereitstellen.A disadvantage of all solutions in the prior art is that conventional shielding arrangements around a high voltage line feedthrough, especially for HVDC applications, do not provide complete overlap of the barrier systems of the shielding arrangements.

Aufgabe der vorliegenden Erfindung ist es daher, eine elektrische Abschirmung um eine Leitungsdurchführung bereitzustellen, die eine schnelle und einfache Anordnung einer durchgängigen Abschirmung um die Leitungsdurchführung, selbst bei baulich ungünstigen Voraussetzungen innerhalb eines Kesselraumes, gewährleistet.Object of the present invention is therefore to provide an electrical shield to a cable feedthrough, which ensures a quick and easy arrangement of a continuous shielding around the cable feedthrough, even with structurally unfavorable conditions within a boiler room.

Die Erfindung wird gelöst durch die Merkmale des Anspruchs 1. Erfindungsgemäß ist vorgesehen, dass ein Verbindungselement in die elektrischen Abschirmungsanordnungen schiebbar ist und mindestens zwei rohrförmige Isolationsbarrieren aufweist, wobei die zwei rohrförmigen Isolationsbarrieren miteinander verbunden sind. Das Verbindungselement überbrückt durch die miteinander verbundenen Isolationsbarrieren einen möglichen Abstand zwischen den Barrieren der ersten und der zweiten elektrischen Abschirmungsanordnung. Gleichzeitig gewährleistet die Verbindung der beiden Isolationsbarrieren, dass zum einen eine entsprechende elektrische Festigkeit als elektrische Abschirmung und zum anderen eine mechanische Stabilität des Verbindungselements gewährleistet ist. Die miteinander verbunden Isolationsbarrieren sind in die Abschirmanordnungen schiebbar, so dass eine einfache und schnelle Anordnung der elektrischen Abschirmung um die Leitungsdurchführung möglich ist.The invention is solved by the features of claim 1. According to the invention it is provided that a connecting element is slidable in the electrical shielding arrangements and has at least two tubular isolation barriers, wherein the two tubular isolation barriers are interconnected. The connecting element bridges a possible distance between the barriers of the first and the second electrical shielding arrangement through the interconnected isolation barriers. At the same time ensures the connection of the two isolation barriers, that on the one hand a corresponding electrical strength as electrical shielding and on the other a mechanical stability of the connecting element is ensured. The interconnected isolation barriers are slidable in the Abschirmanordnungen, so that a simple and fast arrangement of the electrical shield around the cable feedthrough is possible.

Rohrförmig im Sinne der Erfindung bedeutet, dass die so entsprechend benannten Elemente eine Längserstreckung in axialer Richtung der Leitungsführung aufweisen und über einen nahezu kreisförmigen Querschnitt ausgebildet sind. Hierbei muss das jeweils so benannte Element jedoch nicht vollständig als eine Art Rohr ausgebildet sein, sondern kann auch segmentweise Aussparungen und Teilöffnungen aufweisen.In the sense of the invention, tubular means that the elements correspondingly named have a longitudinal extension in the axial direction of the cable guide and are formed over a virtually circular cross-section. In this case, however, the respectively named element need not be completely formed as a kind of tube, but may also have segmental recesses and partial openings.

Die Definition "kreisförmig" im Sinne der Erfindung umfasst auch hiervon abweichende Querschnitte, wie z. B. elliptische, dreieckige oder mehreckige Ausformungen.The definition "circular" within the meaning of the invention also includes deviating cross sections, such. As elliptical, triangular or polygonal shapes.

Erfindungsgemäß ist vorgesehen, dass die zwei rohrförmigen Isolationsbarrieren jeweils in die rohrförmigen isolierenden Barrieren der ersten und der zweiten elektrischen Abschirmungsanordnung schiebbar sind. Hierdurch wird ein direkter und durchgängiger Aufbau einer Barrierenanordnung gewährleistet, auch wenn die gesamte Abschirmung der Leitungsdurchführung aus mehreren Segmenten besteht.According to the invention, it is provided that the two tubular isolation barriers can each be pushed into the tubular insulating barriers of the first and the second electrical shielding arrangement. As a result, a direct and continuous construction of a barrier arrangement is ensured, even if the entire shield of the line feedthrough consists of several segments.

In einer vorteilhaften Ausgestaltung des Verbindungselements sind die rohrförmigen Isolationsbarrieren durch mindestens einen Abstandshalter miteinander verbunden. Vorteilhafterweise bestehen die rohrförmigen Isolationsbarrieren und/oder der Abstandhalter zumindest teilweise aus einem Isölationsmaterial, insbesondere Pressspan.In an advantageous embodiment of the connecting element, the tubular insulation barriers are connected to one another by at least one spacer. Advantageously, the tubular isolation barriers and / or the spacer consist at least partially of an isolation material, in particular pressboard.

Erfindungsgemäß ist vorgesehen, dass die Länge der rohrförmigen Isolationsbarrieren unterschiedlich ist. Hierdurch ist zum einen eine bestmögliche Einpassung des Verbindungselements an einen Zwischenraum zwischen einer ersten und einer zweiten Abschirmungsanordnung gewährleistet. Gleichzeitig können mit den radial auf die Leitungsdurchführung bezogenen abgestuften Isolationsbarrierenlängen des Verbindungselements auftretende elektrische und mechanische Belastungen kompensiert werden. Darüber hinaus können abgestufte Isolationsbarrieresysteme das Einschieben des Verbindungselements in eine Abschirmungsordnung dadurch erleichtern, dass das Verbindungselement durch einzelne Isolationsbarrieren entlang entsprechend korrespondierende Führungen der Abschirmungsanordnungen geführt wird.According to the invention, it is provided that the length of the tubular isolation barriers is different. On the one hand, this ensures the best possible fitting of the connecting element to a gap between a first and a second shielding arrangement. At the same time can with the radially related to the cable bushing graded isolation barrier lengths of the connecting element occurring electrical and mechanical loads are compensated. In addition, graduated insulation barrier systems can facilitate the insertion of the connecting element into a shielding arrangement in that the connecting element is guided through individual insulation barriers along correspondingly corresponding guides of the shielding arrangements.

Der Abstandshalter ist dergestalt ausgeformt, dass einerseits die Zwischenabstände zwischen den rohrförmigen Isolationsbarrieren der der ersten elektrischen Abschirmungsanordnung zugewandten Seite und den Zwischenabstände der Barrieren der ersten elektrischen Abschirmungsanordnung korrespondieren. Alternativ bzw. zusätzlich können die Zwischenabstände zwischen den rohrförmigen Isolationsbarrieren der der zweiten elektrischen Abschirmungsanordnung zugewandten Seite und den Zwischenabständen der Barrieren der zweiten elektrischen Abschirmungsanordnung ebenfalls korrespondieren. Selbst bei unterschiedlichen Barrierenzwischenabständen in der ersten und der zweiten Abschirmungsanordnung gewährleisten entsprechend geformte Abstandshalter zwischen den Isolationsbarrieren eine durchgehende Verbindung der Barrierenanordnung. In diesem Falle sind die Isolationsbarrieren dann nicht parallel und konzentrisch bezüglich der Rotationsachse der Leitungsdurchführung ausgerichtet, sondern weisen z.B. einen konusförmige Anordnung bezogen auf die Leitungsdurchführung auf. Das Verbindungselement kann dadurch abweichende Zwischenabstände der einzelnen Barrieren der ersten Abschirmanordnung im Vergleich zu den Zwischenabständen der Barrieren der zweiten Abschirmanordnung ausgleichen.The spacer is shaped such that, on the one hand, the intermediate distances between the tubular insulation barriers of the side facing the first electrical shielding arrangement and the spacings of the barriers of the first electrical shielding arrangement correspond. Alternatively or additionally, the intermediate distances between the tubular insulation barriers of the side facing the second electrical shielding arrangement and the intermediate distances of the barriers of the second electrical shielding arrangement may also correspond. Even with different barrier spacings in the first and second shielding arrangements, appropriately shaped spacers between the isolation barriers ensure a continuous connection of the barrier assembly. In this case, the isolation barriers are then not aligned parallel and concentric with respect to the axis of rotation of the leadthrough, but have e.g. a cone-shaped arrangement with respect to the line feedthrough on. The connecting element can thereby compensate for deviating interspaces of the individual barriers of the first shielding arrangement in comparison to the interspaces of the barriers of the second shielding arrangement.

Vorteilhafterweise ist der Abstandshalter als Ring und/oder Klotz ausgebildet. Erfindungsgemäß sind mindestens zwei Abstandshalter äquidistant auf einer kreisförmigen Oberfläche einer rohrförmigen Isolationsbarriere angeordnet.Advantageously, the spacer is formed as a ring and / or logs. According to the invention, at least two spacers equidistantly arranged on a circular surface of a tubular insulation barrier.

In einer vorteilhaften Ausgestaltung der Erfindung sind die rohrförmigen Isolationsbarrieren zu Modulelementen zusammenfassbar und miteinander über die Abstandshalter verbindbar. Das erfindungsgemäße Verbindungselement ist aus Modulelementen aufgebaut, die ihrerseits durch Abstandshalter verbindbar sind. Die Abstandshalter gewährleisten eine mechanische Stabilität der jeweiligen Modulelemente. Das Verbindungselement kann aus modularen Baugruppen der Isolationsbarrieren in Form der Modulelemente zusammengesetzt und leicht aufgebaut werden. Radial außen und/oder innen angeordnete Abstandshalter können an den als Modulelemente zusammengefassten Isolationsbarrieren zur gegenseitigen Befestigung der Modulelemente genutzt werden. Die Abstandshalter können dabei als Stecksysteme mittels korrespondierender steckbarer Vorrichtungen miteinander steckbar sein, z.B. über eine Nut-Feder-Verbindung. Alternativ sind die Abstandshalter zwischen den Modulelementen mittels herkömmlicher Befestigungselemente, wie z.B. Schrauben, verbindbar.In an advantageous embodiment of the invention, the tubular isolation barriers can be combined into modular elements and connected to one another via the spacers. The connecting element according to the invention is constructed from modular elements, which in turn can be connected by spacers. The spacers ensure mechanical stability of the respective module elements. The connecting element can be composed of modular components of the isolation barriers in the form of module elements and easily assembled. Spacers arranged radially on the outside and / or inside can be used on the insulation barriers combined as module elements for the mutual fastening of the module elements. The spacers can be plugged together as plug-in systems by means of corresponding plug-in devices, e.g. via a tongue and groove connection. Alternatively, the spacers between the module elements are secured by conventional fasteners, such as e.g. Screws, connectable.

Erfindungsgemäß kann zwischen den Barrieren der ersten und der zweiten elektrischen Abschirmungsanordnung, sowie zwischen den rohrförmigen Isolationsbarrieren eine Isolationsflüssigkeit, insbesondere ein Öl, zirkulieren. Zur Verbindung der ersten elektrischen Abschirmungsanordnung und der zweiten elektrischen Abschirmungsanordnung dienen mehrere Verbindungselemente zur Überbrückung eines Längsabstandes zwischen der ersten und zweiten elektrischen Abschirmungsanordnung, wobei die Verbindungselemente ineinander schiebbar sind. Ein Abstand zwischen zwei Abschirmungsanordnungen kann mit einem modularen Aufbau von mehreren Verbindungselementen, die jeweils ineinander schiebbar sind, überbrückt werden. Hierdurch ist nicht nur ein modularer Aufbau der Verbindungselemente an sich, sondern gleichzeitig ein modularer Systemaufbau von mehreren Verbindungselementen möglich.According to the invention, an insulating liquid, in particular an oil, can circulate between the barriers of the first and the second electrical shielding arrangement, as well as between the tubular isolation barriers. For connecting the first electrical shielding arrangement and the second electrical shielding arrangement serve a plurality of connecting elements for bridging a longitudinal distance between the first and second electrical shielding arrangement, wherein the connecting elements are pushed into one another. A distance between two shielding arrangements can be bridged with a modular construction of a plurality of connecting elements, which are in each case slidable into one another. hereby is not only a modular design of the fasteners per se, but at the same time a modular system structure of several fasteners possible.

Das Verbindungselement zur Verbindung der elektrischen Abschirmungsanordnung einer Transformatorwicklung ist mit einer Leitungsdurchführung eines Transformatorgehäuses verbindbar. Vorteilhafterweise ist der Abstand zwischen den einzelnen Isolationsbarrieren aus isolationstechnischen Gründen nicht größer als 300 mm.The connection element for connecting the electrical shielding arrangement of a transformer winding can be connected to a line leadthrough of a transformer housing. Advantageously, the distance between the individual isolation barriers for isolation reasons, no greater than 300 mm.

In einer vorteilhaften Ausgestaltung des erfindungsgemäßen Verbindungselements sind mehrere Abstandshalter bezogen auf die Leitungsdurchführung radial und/oder axial gegeneinander versetzt zwischen den Isolationsbarrieren angeordnet. Das Verbindungselement kann mittels mindestens eines Abstandshalters auf einer um die Leitungsdurchführung angeordneten Steuerelektrode angeordnet werden.In an advantageous embodiment of the connecting element according to the invention a plurality of spacers relative to the line feedthrough radially and / or axially offset from one another are arranged between the isolation barriers. The connecting element can be arranged by means of at least one spacer on a control electrode arranged around the line bushing.

Die Aufgabe wird ebenfalls durch die Merkmale des Anspruchs 16 gelöst. Erfindungsgemäß ist nach dem Verfahren zur Herstellung einer elektrischen Abschirmung um eine Leitungsdurchführung zunächst die Herstellung einer ersten elektrischen Abschirmungsanordnung mit mindestens einer um die Leitungsdurchführung angeordneter rohrförmig isolierender Barriere vorgesehen. In diese erste Abschirmanordnung wird ein Verbindungselement mit mindestens zwei rohrförmigen, zumindest teilweise miteinander verbundenen Isolationsbarrieren in die erste elektrische Abschirmungsanordnung eingeschoben und anschließend fixiert. Die Befestigung kann durch eine mechanische Verspannung der Barrieren gegeneinander und/oder durch eine äußere Haltung erfolgen. Anschließend wird das Verbindungselement mit einer zweiten elektrischen Abschirmungsanordnung mit mindestens einer um die Leitungsdurchführung angeordneter rohrförmig isolierender Barriere verbunden. Die Aufgabe wird weiterhin durch die elektrische Abschirmung um eine Leitungsdurchführung gemäß dem Anspruch 17 gelöst.The object is also solved by the features of claim 16. According to the invention, according to the method for producing an electrical shield around a line leadthrough, first of all the production of a first electrical shielding arrangement with at least one tubular insulating barrier arranged around the line leadthrough is provided. In this first shielding arrangement, a connecting element with at least two tubular, at least partially interconnected isolation barriers is inserted into the first electrical shielding arrangement and then fixed. The attachment can be done by a mechanical tension of the barriers against each other and / or by an external attitude. Subsequently, the connecting element with a second electrical shielding arrangement with at least one arranged around the cable feedthrough connected tubular insulating barrier. The object is further achieved by the electrical shield to a line feedthrough according to claim 17.

Weitere vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen. Einige beispielhafte Ausgestaltungen werden anhand der Figuren erläutert. Es zeigen:

  • Fig.1 schematische Seitenansicht des erfindungsgemäßen Verbindungselements zwischen zwei elektrischen Abschirmungsanordnungen;
  • Fig.2a,2b,2c,2d schematische Ansicht von unterschiedlich in axialer Richtung abgestuften erfindungsgemäßen Verbindungselementen;
  • Fig.3 schematische Ansicht von elektrischen Abschirmungsanordnungen mit jeweils erfindungsgemäßem Verbindungselement zur Verbindung zweier Wicklungen.
Further advantageous embodiments will be apparent from the dependent claims. Some exemplary embodiments will be explained with reference to the figures. Show it:
  • Fig.1 schematic side view of the connecting element according to the invention between two electrical shielding arrangements;
  • 2a, 2b, 2c, 2d schematic view of differently graded in the axial direction of the invention connecting elements;
  • Figure 3 schematic view of electrical shielding arrangements, each with inventive connecting element for connecting two windings.

Die Figur Fig. 1 zeigt eine schematische Seitenansicht des erfindungsgemäßen Verbindungselements 1 zwischen einer ersten elektrischen Abschirmungsanordnung 2 einer Transformatorwicklung 14 (nicht dargestellt) und einer zweiten elektrischen Abschirmungsanordnung 3 für eine Leiterdurchführung aus dem Transformatorgehäuse 13. Die erste elektrische Abschirmungsanordnung 2 weist Barrierenelemente 5a, 5b, 5c, 5d, 5e auf, die um einen Wicklungskörper 11 angeordnet sind. Um die Leitungsdurchführung 4 ist eine rohrförmige Steuerelektrode 10 aus Kupfer zur Isolation und Feldführung angeordnet. Die Steuerelektrode 10 ist teilweise durch eine Papierschicht 9 isoliert. Die Leitungsdurchführung 4, die Steuerelektrode 10 die erste und zweite Abschirmungsanordnung 2,3 und das Verbindungselement 1 sind bezüglich der als gestrichelte Linie eingezeichneten Achse rotationssymmetrisch.The figure Fig. 1 1 shows a schematic side view of the connecting element 1 according to the invention between a first electrical shielding arrangement 2 of a transformer winding 14 (not shown) and a second electrical shielding arrangement 3 for a conductor feedthrough from the transformer housing 13. The first electrical shielding arrangement 2 has barrier elements 5a, 5b, 5c, 5d, 5e, which are arranged around a winding body 11. A tubular control electrode 10 made of copper for insulation and field guidance is arranged around the leadthrough 4. The control electrode 10 is partially insulated by a paper layer 9. The leadthrough 4, the control electrode 10, the first and second shielding assembly 2,3 and the connecting element 1 are rotationally symmetric with respect to the axis shown as a dashed line.

Diese Rotationssymmetrie stellt jedoch keine Einschränkung des Gegenstands der Erfindung dar, da im Sinne der Erfindung ebenfalls auch teilweise rotationssymmetrische bzw. segmentweise Barrierenanordnungen 5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d, 7a, 7b, 7c, 7d durch die Merkmale der Patentansprüche mit beansprucht sind.However, this rotational symmetry is not a limitation of the subject matter of the invention, since in the context of the invention also partially rotationally symmetrical or segmental barrier arrangements 5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d, 7a, 7b, 7c, 7d are claimed by the features of the claims.

Die erste elektrische Abschirmungsanordnung 2 ist bezogen auf die Steuerelektrode 10 in radialer Richtung angeordnet. Aufgrund hochspannungstechnischer Erfordernisse muss der Abstand 12 zwischen den Wicklungen 11 und der entsprechenden Kesselwand 13 ein bestimmtes Mindestmaß aufweisen. Die Barrierenelemente 5a, 5b, 5c, 5d, 5e der ersten elektrischen Abschirmungsanordnung 2 sind hierfür jedoch zu kurz ausgestaltet, um das Einfahren des Transformatoraktivteiles zu gewährleisten. Die zweite elektrische Abschirmungsanordnung 3 für die Leitungsdurchführung 4 ist ebenfalls nicht in die erste elektrische Abschirmungsanordnung 2 einschiebbar. Daher wird das erfindungsgemäße Verbindungselement 1 zwischen das Barrierensystem 5a, 5b, 5c, 5d, 5e der ersten elektrischen Abschirmungsanordnung 2 und das Barrierensystem 6a, 6b, 6c, 6d der zweiten elektrischen Abschirmungsanordnung 3 eingeschoben. Aufgrund der bekannten Zwischenabstände zwischen den einzelnen Barrierenelementen 5a, 5b, 5c, 5d, 5e bzw. 6a, 6b, 6c, 6d der ersten elektrischen Abschirmungsanordnung 2 und der zweiten elektrischen Abschirmungsanordnung 3 können die Abstandshalter 8 des Verbindungselements 1 dergestalt gewählt werden, dass jeweils ein passgenaues Einschieben der rohrförmigen Isolationsbarrieren 7a, 7b, 7c, 7d in die jeweils korrespondierenden Öffnungen des ersten 5a, 5b, 5c, 5d, 5e beziehungsweise des zweiten Barrierensystems 6a, 6b, 6c, 6d gewährleistet ist. In dieser Barrierenanordnung 5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d, 7a, 7b, 7c, 7d kann weiterhin ein Öl als Isolationsmedium zirkulieren. Ebenfalls ist oberhalb des Verbindungselementes 1 eine genügend freie Ölstrecke zur Kesselwand 13 gewährleistet. Zwischen den Isolationsbarrieren 7a, 7b, 7c, 7d sind die Abstandhalter 8 als Ringe oder Klötze ausgebildet.The first electrical shielding arrangement 2 is arranged with respect to the control electrode 10 in the radial direction. Due to high-voltage requirements, the distance 12 between the windings 11 and the corresponding boiler wall 13 must have a certain minimum size. However, the barrier elements 5a, 5b, 5c, 5d, 5e of the first electrical shielding arrangement 2 are designed to be too short in order to ensure retraction of the transformer active part. The second electrical shielding arrangement 3 for the cable feedthrough 4 likewise can not be inserted into the first electrical shielding arrangement 2. Therefore, the connecting element 1 according to the invention is inserted between the barrier system 5a, 5b, 5c, 5d, 5e of the first electrical shielding arrangement 2 and the barrier system 6a, 6b, 6c, 6d of the second electrical shielding arrangement 3. Due to the known intermediate distances between the individual barrier elements 5a, 5b, 5c, 5d, 5e and 6a, 6b, 6c, 6d of the first electrical shielding arrangement 2 and the second electrical shielding arrangement 3, the spacers 8 of the connecting element 1 can be chosen such that in each case a precise insertion of the tubular isolation barriers 7a, 7b, 7c, 7d in the respective corresponding openings of the first 5a, 5b, 5c, 5d, 5e or the second barrier system 6a, 6b, 6c, 6d guaranteed is. In this barrier arrangement 5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d, 7a, 7b, 7c, 7d, furthermore, an oil can circulate as insulation medium. Also, a sufficiently free oil path to the boiler wall 13 is ensured above the connecting element 1. Between the isolation barriers 7a, 7b, 7c, 7d, the spacers 8 are formed as rings or blocks.

Die Figur Fig. 2 zeigt unterschiedliche Ausgestaltungen der erfindungsgemäßen Verbindungselemente 1. Die axiale Länge der jeweiligen rohrförmigen Isolationsbarrieren 7a, 7b, 7c, 7d kann dabei unterschiedlich sein. Ebenfalls sind die Abstandshalter 8 vorteilhafterweise zwischen den rohrförmigen Isolationsbarrieren 7a, 7b, 7c, 7d in radialer und/oder axialer Richtung - bezogen auf die Längserstreckung der Leitungsdurchführung 4 - unterschiedlich positioniert. Hierdurch wird ein Ineinanderschieben der Isolationsbarrieren 7a, 7b, 7c, 7d in die das Barrierensystem 5a, 5b, 5c, 5d, 5e der ersten elektrischen Abschirmungsanordnung 2 und das Barrierensystem 6a, 6b, 6c, 6d der zweiten elektrischen Abschirmungsanordnung 3 gewährleistet.The figure Fig. 2 shows different embodiments of the connecting elements 1. The axial length of the respective tubular isolation barriers 7a, 7b, 7c, 7d may be different. Likewise, the spacers 8 are advantageously positioned differently between the tubular isolation barriers 7a, 7b, 7c, 7d in the radial and / or axial direction, with respect to the longitudinal extension of the cable feedthrough 4. In this way, a telescoping of the isolation barriers 7a, 7b, 7c, 7d into which the barrier system 5a, 5b, 5c, 5d, 5e of the first electrical shielding arrangement 2 and the barrier system 6a, 6b, 6c, 6d of the second electrical shielding arrangement 3 is ensured.

Die Figur Fig. 3 zeigt eine schematische Draufsicht eines HGÜ-Transformators mit erfindungsgemäßem Verbindungselement 1. Die als Kamine ausgebildeten Barrieren 5a, 5b, 5c, 5d, 5e der ersten elektrischen Abschirmungsanordnung 2 an den Wicklungen 11 des HGÜ-Transformators werden mittels des Verbindungselements 1 mit dem Barrierensystem 6a, 6b, 6c, 6d um die Leitungsausführung aus dem Transformatorgehäuse verbunden. Hierdurch ist gewährleistet, dass die während des Betriebes entstehenden elektrischen Felder innerhalb der Barrierenanordnung 5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d, 7a, 7b, 7c, 7d geführt werden. Das Verbindungselement 1 gewährleisten darüber hinaus, dass die erste elektrische Abschirmungsanordnung 2 mit der zweiten elektrischen Abschirmungsanordnung 3 als Kesselausführung passgenau verbunden ist.The figure Fig. 3 shows a schematic plan view of a HVDC transformer with inventive connecting element 1. The formed as chimneys barriers 5a, 5b, 5c, 5d, 5e of the first electrical shielding arrangement 2 on the windings 11 of the HVDC transformer are by means of the connecting element 1 with the barrier system 6a, 6b, 6c, 6d connected to the line version of the transformer housing. This ensures that the electrical fields generated during operation are guided within the barrier arrangement 5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d, 7a, 7b, 7c, 7d. The connecting element 1 moreover ensure that the first electrical shielding arrangement 2 is accurately connected to the second electrical shielding arrangement 3 as a boiler design.

Claims (17)

  1. Connecting element (1) for connection of a first electrical shield arrangement (2) which is arranged around a bushing (4), to at least one tubular isolating barrier (5a, 5b, 5c, 5d, 5e) which is arranged around the bushing (4), and to at least one second electrical shield arrangement (3), which is arranged around the bushing (4) and has at least one tubular isolating barrier (6a, 6b, 6c, 6d) which is arranged around the bushing (4), characterized in that the connecting element (1) can be pushed into the electrical shield arrangements (2, 3) and has at least two tubular isolation barriers (7a, 7b, 7c, 7d) with the tubular isolation barriers (7a, 7b, 7c, 7d) being connected to one another.
  2. Connecting element (1) according to Claim 1, characterized in that the tubular isolating barriers (7a, 7b, 7c, 7d) can be pushed into the respective tubular isolating barriers (5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d) of the first and of the second electrical shield arrangements (2, 3).
  3. Connecting element (1) according to one of Claims 1 or 2, characterized in that the tubular isolation barriers (7a, 7b, 7c, 7d) are connected to one another by means of at least one spacer (8).
  4. Connecting element (1) according to one of Claims 1 to 3, characterized in that the tubular isolation barriers (7a, 7b, 7c, 7d) and/or the spacer (8) are/is composed at least partially of an insulation material, in particular pressboard.
  5. Connecting element (1) according to one of Claims 1 to 4, characterized in that the axial length of the respective tubular isolation barriers (7a, 7b, 7c, 7d) is different.
  6. Connecting element (1) according to one of Claims 1 to 5, characterized in that the spacer (8) is shaped such that the intermediate distances between the tubular isolation barriers (7a, 7b, 7c, 7d) on the side of the connecting element (1) facing of the first electrical shield arrangement (2) and the intermediate distances between the barriers (5a, 5b, 5c, 5d, 5e) of the first electrical shield arrangement (2) and/or the intermediate distances between the tubular isolation barriers (7a, 7b, 7c, 7d) on the side of the connecting element (1) facing the second electrical shield arrangement (3), and the intermediate distances between the barriers (6a, 6b, 6c, 6d) of the second electrical shield arrangement (3) correspond.
  7. Connecting element according to one of Claims 1 to 6, characterized in that the spacer (8) is in the form of a ring and/or block.
  8. Connecting element (1) according to one of Claims 1 to 7, characterized in that at least two spacers (8) are arranged equidistantly on the cross-sectional surface of at least one tubular isolation barrier (7a, 7b, 7c, 7d).
  9. Connecting element (1) according to one of Claims 1 to 8, characterized in that an insulation liquid, in particular an oil, can circulate between the barriers (5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d) of the first and of the second electrical shield arrangements (2, 3) and between the tubular isolation barriers (7a, 7b, 7c, 7d).
  10. Connecting element (1) according to one of Claims 1 to 9, characterized in that, in order to connect the first electrical shield arrangement (2) and the second electrical shield arrangement (3), a plurality of connecting elements (1) are used to bridge a longitudinal distance between the first and the second electrical shield arrangements (2, 3), in which case the connecting elements (1) can be pushed into one another.
  11. Connecting element (1) according to one of Claims 1 to 10, characterized in that the tubular isolation barriers (7a, 7b, 7c, 7d) can be combined to form module elements, and the module elements can be connected to one another via the spacers (8).
  12. Connecting element (1) according to one of Claims 1 to 11, characterized in that the connecting element (1) can be connected to a bushing of a transformer housing, for connection of an electrical shield arrangement (2) of a transformer winding (14).
  13. Connecting element (1) according to one of Claims 1 to 12, characterized in that the distance between the individual isolation barriers (7a, 7b, 7c, 7d) is not greater than 300 mm.
  14. Connecting element (1) according to one of Claims 1 to 13, characterized in that, with respect to the bushing, at least two spacers (8) are arranged radially and/or axially offset with respect to one another between the isolation barriers (7a, 7b, 7c, 7d).
  15. Connecting element (1) according to one of Claims 1 to 14, characterized in that the connecting element (1) can be arranged, by means of at least one spacer (8) on a control electrode (9) which is arranged around the bushing (4).
  16. Method for production of an electrical shield around a bushing (4), having the following steps:
    - provision of a first electrical shield arrangement (2) having at least one tubular isolating barrier (5a, 5b, 5c, 5d, 5e) which is arranged around the bushing (4);
    - insertion of a connecting element (1) having at least two tubular isolation barriers (7a, 7b, 7c, 7d), which are at least partially connected to one another, into the first electrical shield arrangement (2);
    - mounting of the electrical element (1) in the first electrical shield arrangement (2);
    - arrangement of a second electrical shield arrangement (3) with at least one tubular isolating barrier (6a, 6b, 6c, 6d), which is arranged around the bushing (4), with the second shield arrangement (3) being connected to the connecting element (1).
  17. Electrical shield around a bushing (4), having a first electrical shield arrangement (2) with at least one tubular isolating barrier (5a, 5b, 5c, 5d, 5e) which is arranged around the bushing (4), having at least one second electrical shield arrangement (3) having at least one tubular isolating barrier (6a, 6b, 6c, 6d) which is arranged around the bushing (4), and having at least one connecting element (1) for connection of the first and second shield arrangements (3, 4) according to one of Claims 1 to 15.
EP07726917A 2006-03-21 2007-03-15 Connecting element for an electric shielding assembly Not-in-force EP1997117B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07726917T PL1997117T3 (en) 2006-03-21 2007-03-15 Connecting element for an electric shielding assembly

Applications Claiming Priority (2)

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DE102006013927A DE102006013927B4 (en) 2006-03-21 2006-03-21 Connecting element for an electrical shielding arrangement
PCT/EP2007/052426 WO2007107492A1 (en) 2006-03-21 2007-03-15 Connecting element for an electric shielding assembly

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EP1997117A1 EP1997117A1 (en) 2008-12-03
EP1997117B1 true EP1997117B1 (en) 2009-12-02

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US (1) US7850467B2 (en)
EP (1) EP1997117B1 (en)
CN (1) CN101405819A (en)
AT (1) ATE450873T1 (en)
CA (1) CA2646584C (en)
DE (2) DE102006013927B4 (en)
DK (1) DK1997117T3 (en)
ES (1) ES2336506T3 (en)
PL (1) PL1997117T3 (en)
PT (1) PT1997117E (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011120543A1 (en) 2010-03-29 2011-10-06 Siemens Aktiengesellschaft Method and device for assembling a transformer

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010063979A1 (en) * 2010-12-22 2012-06-28 Siemens Aktiengesellschaft Electrical shielding arrangement of a separation point of a wiring for a HVDC component
DE102011008456A1 (en) 2011-01-07 2012-07-12 Siemens Aktiengesellschaft Cable routing for HVDC transformer coils or HVDC choke coils
DE102011008459A1 (en) * 2011-01-07 2012-07-12 Siemens Aktiengesellschaft Cable bushing for the boiler wall of an HVDC component
DE102011008461A1 (en) * 2011-01-07 2012-07-12 Siemens Aktiengesellschaft Cutting point of a cable feedthrough for a HVDC component
DE202012100921U1 (en) 2011-10-26 2012-06-14 Abb Technology Ltd. Electrical isolation device and system with the same
EP2487696B1 (en) * 2012-03-28 2014-03-12 ABB Technology AG Shielding electrode and oil-fired boiler
DE102012223559A1 (en) * 2012-09-28 2014-05-15 Siemens Aktiengesellschaft Inductor for heating heavy oil and oil sand deposits
EP2922070A1 (en) * 2014-03-19 2015-09-23 ABB Technology Ltd Electrical insulation system and high voltage electromagnetic induction device comprising the same
WO2017000545A1 (en) * 2015-07-01 2017-01-05 山东电工电气集团有限公司 High voltage outlet structure of ultra-high voltage shunt reactor
DE102017204922A1 (en) * 2017-03-23 2018-09-27 Siemens Aktiengesellschaft Device for connecting shielding tubes of a high-voltage device
RU2750259C1 (en) * 2021-01-11 2021-06-25 Публичное акционерное общество "Радиофизика" Split linkage shielding device

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE526234A (en) *
BE572284A (en) *
GB1104286A (en) * 1964-12-15 1968-02-21 Micanite And Insulators Compan Improvements in and relating to electrical terminals
US3967131A (en) * 1974-06-04 1976-06-29 Ozone Incorporated Corona discharge ozone generating unit
US4310209A (en) * 1980-02-25 1982-01-12 Western Electric Company, Inc. Cable shield connecting device
JPS57160106A (en) * 1981-03-30 1982-10-02 Toshiba Corp Connection structure of insulation lead wire for stationary induction electric apparatus
JPS58124215A (en) * 1982-01-21 1983-07-23 Toshiba Corp Assembling of split type transformer
JPS58125808A (en) * 1982-01-22 1983-07-27 Toshiba Corp Connecting method for oil-immersed electrical machinery and apparatus
SE463951B (en) * 1989-06-19 1991-02-11 Asea Brown Boveri CONTROL BODY CONTAINS FAULT CONTROL OF A TRANSFORMER TRANSMISSION CONNECTOR TO A TRANSFORMER WIRING CONNECTOR WITH STRUCTURAL TRANSFORMERS
SE464898B (en) * 1989-10-31 1991-06-24 Asea Brown Boveri CONDENSOR BODY CONTAINS FAULT CONTROL OF A TRANSFORMER TRANSMISSION CONNECTOR TO A TRANSFORMER WIRING CONNECTOR WITH CIRCUIT TRANSFORMERS
GB9414039D0 (en) * 1994-07-11 1994-09-28 Raychem Ltd Electrical interconnection
DE19530163C2 (en) * 1995-08-03 1997-12-18 Aeg Schorch Transformatoren Gm High voltage leadout and feedthrough arrangement for transformers or choke coils
US7040902B2 (en) * 2003-03-24 2006-05-09 Che-Yu Li & Company, Llc Electrical contact
DE102005021255B4 (en) * 2005-05-02 2007-08-16 Siemens Ag Barrier system for the line feedthrough of an electrical system
DE102006008922B4 (en) * 2006-02-21 2009-01-02 Siemens Ag Electric shielding arrangement
US7828593B2 (en) * 2008-05-02 2010-11-09 Charles David Gilliam Shielded oilfield electric connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011120543A1 (en) 2010-03-29 2011-10-06 Siemens Aktiengesellschaft Method and device for assembling a transformer

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DE102006013927B4 (en) 2008-11-20
DE102006013927A1 (en) 2007-10-04
RU2416133C2 (en) 2011-04-10
US20090130871A1 (en) 2009-05-21
DE502007002183D1 (en) 2010-01-14
RU2008141693A (en) 2010-04-27
CA2646584C (en) 2015-02-03
PL1997117T3 (en) 2010-05-31
EP1997117A1 (en) 2008-12-03
ATE450873T1 (en) 2009-12-15
PT1997117E (en) 2009-12-17
ES2336506T3 (en) 2010-04-13
DK1997117T3 (en) 2010-04-06
CA2646584A1 (en) 2007-09-27
US7850467B2 (en) 2010-12-14
CN101405819A (en) 2009-04-08
WO2007107492A1 (en) 2007-09-27

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