EP1769513A1 - Coupling electrode for capacitive voltage tapping within the insulation body of a duct or an insulator - Google Patents

Coupling electrode for capacitive voltage tapping within the insulation body of a duct or an insulator

Info

Publication number
EP1769513A1
EP1769513A1 EP05762939A EP05762939A EP1769513A1 EP 1769513 A1 EP1769513 A1 EP 1769513A1 EP 05762939 A EP05762939 A EP 05762939A EP 05762939 A EP05762939 A EP 05762939A EP 1769513 A1 EP1769513 A1 EP 1769513A1
Authority
EP
European Patent Office
Prior art keywords
coupling electrode
electrode
insulating body
component
coupling
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
EP05762939A
Other languages
German (de)
French (fr)
Other versions
EP1769513B1 (en
Inventor
Clemens Albert
Wilfried Albert
Stefan Hohmann
Helmut Späck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1769513A1 publication Critical patent/EP1769513A1/en
Application granted granted Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/005—Insulators structurally associated with built-in electrical equipment

Definitions

  • the invention relates to a coupling electrode for capacitive voltage tap within an insulating body of a Bau ⁇ part having at least one embedded in the insulator th with high voltage potential acted upon conductor portion, with an electrode made of a semiconductive plastic electrode portion and one with the E- lektrodenabrough electrically connected connection element, which is designed such that it can be guided out of the insulating body.
  • the invention further relates to a component having at least one conductor section which can be acted upon by a high-voltage potential and an insulating body made of insulating material, in which each conductor section is embedded.
  • Such a coupling electrode and such a component are already known from EP 0 400 491 A2.
  • the Kop ⁇ pelelektrode shown there has an annular Elektrodenab ⁇ cut from a semiconducting plastic.
  • An electrically conducting connection is designed as a pin check "" ⁇ "'closing element is denabrough to the Elektro ⁇ formed so that be ⁇ between pin and electrode portion.
  • the device shown there comprises an insulating body, in said coupling electrode is embedded In this case, the connection element is led out of the insulating body, so that the potential of the electrode section can be tapped off by appropriate connection plugs on the connection element extends through the insulating body, wherein the Porter ⁇ section and the electrode section are arranged coaxially to each other an ⁇ .
  • the component described is used as a so-called implementation in high and medium voltage technology.
  • the conductor section is subjected to a high-voltage potential, wherein the coupling electrode is used as a capacitive divider element, at which a potential proportional to the high-voltage potential is generated, with which the voltage of the conductor section can be tracked.
  • the coupling electrode is used as a capacitive divider element, at which a potential proportional to the high-voltage potential is generated, with which the voltage of the conductor section can be tracked.
  • Component have the disadvantage that in the manufacture of the insulating body of the component, the coupling electrode must be positioned consuming at the An ⁇ circuit element. Such a mounting of the coupling electrode during the casting process is moreover susceptible to errors, so that measurement inaccuracies may occur.
  • the invention has for its object to provide a Koppelelektro ⁇ de and a component of the type mentioned, which are inexpensive, with an accurate alignment of the coupling electrode is made possible within the cast-molded insulating.
  • the invention achieves this object by means of a holder which is made of a nonconductive material and which is connected to the electrode section and has the parking means with which an insulated mounting of the electrode section is made possible.
  • the coupling electrode has a non-conductive holder. Due to the nonconductivity, it is possible according to the invention, the coupling electrode with the Abstell ⁇ means of the holder, for example, on a in a late the application of earth potential having the Bau ⁇ part in contact bring, without thereby the elektri ⁇ 's properties of the coupling electrode are negatively impaired tigt. In this way, the object of positioning the coupling electrode and forming an electrical connection point is separated according to the invention.
  • the insulator consists of cast resin.
  • the selected semiconducting plastic, from which the electrode section is made, and casting resin have a similar coefficient of thermal expansion, so that mechanical stresses occurring within the insulating body, especially in the case of high temperature changes, are avoided.
  • connection plug connected to a conductor which can be slid onto the connection element.
  • the coupling electrode is releasably connectable with other electronic devices, such as Schutzge ⁇ devices.
  • sealing means are provided which are set up to hold the connection plug in the insulating body.
  • the sealing means are arranged for example before insertion of the connector plug in the insulating body of the component. The connector is then simply plugged into the component and pushed onto the sealant.
  • an electrical insulation of the connection plug in the component is also made possible.
  • the sealants also prevent the entry of moisture or other contaminants.
  • the sealants consist of an elastomer.
  • the elastomer is advantageously an insulating material. A subsequent potting of the connection plug with sealing materials, which became known from the prior art, is eliminated according to the invention.
  • the elastomer is, for example, a suitable SiIi konkautschuk or the like.
  • the sealing means can be latched in the insulating body of the component, for this purpose, for example, latching grooves are formed in the insulating body into which the sealing means are pressed when the connector plug is pushed in.
  • the latching grooves are located, for example, in a recess which is provided in the insulating body and into which the connecting element protrudes.
  • the sealing means have such an elasticity that on the one hand penetration into the locking grooves and thus a rear grip is possible. On the other hand, the elasticity is adjusted so that a sufficiently high holding force is inquirege ⁇ provides to avoid accidental slipping out of Anschluß ⁇ plug from the insulator.
  • the sealing means are for example a single sealing element.
  • the semiconductive plastic contains polyphenylene sulfide and carbon fibers. With this mixture, a sufficiently high conductivity is ensured, wherein the coefficient of thermal expansion is largely adapted to that of the casting resin typically used in the production of the insulating body. Mechanical stresses between the electrode portion and the insulating body with Material breaks in the wake are avoided in this way.
  • the semiconductive plastic preferably consists only of the two said components. However, customary additives can also be used in the course of this further development, the stated proportion of the carbon fibers always referring to the total weight of the electrode section.
  • the proportion of carbon fibers is between 15% by weight and 35% by weight.
  • a carbon fiber content in this range has proven to be sufficient to provide the necessary conductivity be ⁇ .
  • the nonconductive material is polyphenylene sulfide.
  • polyphenylene sulfide has a thermal expansion coefficient which largely corresponds to that of the casting resin.
  • the non-conductive material a micro ⁇ "•” Research of polyphenylene sulfide and glass fibers.
  • the glass fibers reinforce the holder, so that an increased mechanical strength is provided. In this way, destruction or deformation of the coupling electrode can be avoided for example in the manufacturing process.
  • the electrode section has a roughened surface.
  • the roughened surface improves the adhesion of the electrode section in the insulating body. This is a free transfer between Ensures electrode portion and insulator and prevents occurrence of discharge processes.
  • the holder has a retaining ring connected to the electrode section.
  • the component according to the invention has a coupling electrode as described above and, owing to the simpler positioning of the coupling electrode, can be produced more simply and more inexpensively.
  • the component is a leadthrough, with the aid of which it is possible to pass conductor sections with a high-voltage potential through a wall which is acted upon, for example, by ground potential, without causing discharge processes.
  • the component is a so-called support, the free ends of which are connected on the one hand with components to high voltage potential and on the other hand ⁇ with components on Erdpotenti- al.
  • the coupling electrode is completely embedded in the insulating body.
  • FIG. 1 shows a perspective view of an exemplary embodiment of the coupling electrode according to the invention
  • FIG. 2 shows a cross-sectional view of an embodiment of the component according to the invention
  • Figure 3 is an enlarged view of the component according to Figure 2 in a cross-sectional view
  • Figure 4 show a further embodiment of the erfindungs ⁇ contemporary component in a cross-sectional view.
  • FIG. 1 shows an embodiment of the coupling electrode 1 according to the invention in a perspective view.
  • the coupling electrode 1 has an annular electrode section 2 and an attachment pin 3 connected electrically to it as a connection element, which in the example shown in FIG. 1 is fastened to the lower ring side of the electrode section 2 and protrudes outwardly therefrom , ⁇ "' "
  • the coupling electrode 1 also has a holder 4, which is fixedly connected to the electrode section 2 on its fastening side 5.
  • the holder 4 has a holding ring 4 a clamped to the electrode section, to which three identically formed L-shaped holding feet 4 b are formed.
  • the longer legs of the L-shaped support feet 4b of the holder 4 are designed as free ends, so that parking means 7 are formed.
  • the three free ends 7 Finishing a plane shelf on which the Koppelelektro ⁇ de 1 can be safely and stably stored.
  • the electrode section 2 of the coupling electrode 1 is made of a 5 semiconducting plastic and in this case made of polyphenylene sulfide with a carbon content of 30 wt.%.
  • the electrically non-conductive support 4, however, is made of pure polyphenylene sulfide, which was mechanically reinforced with glass fibers.
  • Figure 2 and 3 shows an embodiment of a erfindungs ⁇ contemporary component 8 in a cross-sectional view.
  • the component 8 shown here has a rotationally symmetrical insulating body 9, which consists of casting resin. Due to the insulating
  • the coupling electrode 1 with its electrode section 2 is arranged concentrically around the conductor section 10 and likewise embedded in the insulating body 9. In this case, the 1 bracket 4 with its Abstellstoffn 7 on the flange 13.
  • connection plug 15 For tapping off the potential of the electrode section 2 on the connecting pin 3 is a with a connecting line fourteenth connected connection plug 15 is provided, wherein the An ⁇ circuit line 14 and up to the pin 3 kon ⁇ taktierendes introductory and the connector 15 are surrounded by ei ⁇ nem insulating material flexible.
  • the connection plug 15 is held by insulating means 16, which are made of an elastic and non-conductive material, such as silicone or Si ⁇ likonkautschuk, isolated from the outside environment to the insulating body 9.
  • the sealing means 16 By pressing the connector 15 into a recess 17 formed in the insulating body 9, the sealing means 16 is pressed into locking grooves which are formed in the recess 17. This results in jamming of the connector 15 in the Aus ⁇ saving 17 by the latched sealing means 16 so that a stable and electrically sealed mounting of the connector 15 is provided.
  • FIG. 3 shows an enlarged view of the connection line 14 with the connection plug 15 and the sealing means 16.
  • the electrode section 2 is clamped on an outer ring section 4a of the holder 4.
  • the connecting pin 3 is not formed in one piece with the electrode section 2. Rather, the terminal pin 3 is positioned in a press-in opening of the electrode section 2 'and clamped with this.
  • the sealing means 16 are realized in the ge Service ⁇ th embodiment as a single elastic Silikon ⁇ element.
  • connection plug 15 it may also be expedient in the context of the invention to coat the connection plug 15 with a heat-shrinkable tube on the outside prior to insertion on the connecting pin 3 on the outside.
  • connection plug 15 it may also be expedient in the context of the invention to coat the connection plug 15 with a heat-shrinkable tube on the outside prior to insertion on the connecting pin 3 on the outside.
  • the means 16 Dichtmit ⁇ increases the tightness.
  • the sealing means 16 can not only extend within the recess 17, but can also be guided out of this.
  • FIG 4 shows a further embodiment of a component according to the invention, which is a so-called support insulation 18 or in other words is a supporter.
  • the support insulation 18 again has a conductor section 19 which, however, does not extend completely through the insulating body 9 of the support insulation 18, but instead has a free end which is completely embedded in the insulation body 9.
  • the conductor section 19 again has fastening means 11 for fastening a conductor, not shown, to the high-voltage potential.
  • Extending screens 20 serve to increase the creepage distance along the outer surface of the support insulation.
  • connection element 3 which is firmly and electrically conductively connected to the electrode section 2, is not pin-shaped, but bent at a 90 "angle, with its free end projecting into a recess 21 of the insulating body 9.
  • connection plug 15 is adapted to the depth of the recess 21, so that a secured tap of the potential of the electrode section 2 is also possible in this embodiment of the component 18.
  • a latchable sealant 16 is used for secure attachment of the An ⁇ connector 15 on the insulating body 9 and for electrical see sealing of the connector 15 and to prevent the entry of moisture into the recess 21st

Abstract

According to the invention, a coupling electrode (1), for capacitive voltage tapping within an insulation body (9) of an assembly (8,18), comprising at least one conducting section (10, 19) embedded in the insulation body (9) which may be provided with a high voltage potential, with an electrode section (2), made from a semiconducting plastic and a connector element (3), electrically connected to the electrode section (2), embodied to extend from the insulation body (9), may be economically prepared, whereby a retainer (4), made from a non-conducting material, is connected to the electrode section (2) and comprises positioning means (7), with which an insulated mounting of the electrode section (2) is possible.

Description

Beschreibungdescription
Koppelelektrode zum kapazitiven Spannungsabgriff innerhalb des Isolierkörpers einer Durchführung oder eines StützersCoupling electrode for capacitive voltage tap inside the insulating body of a bushing or a supporter
Die Erfindung betrifft eine Koppelelektrode zum kapazitiven Spannungsabgriff innerhalb eines Isolierkörpers eines Bau¬ teils, das wenigstens einen in den Isolierkörper eingebette¬ ten mit Hochspannungspotential beaufschlagbaren Leiterab- schnitt aufweist, mit einem aus einem halbleitenden Kunst¬ stoff bestehenden Elektrodenabschnitt und einem mit dem E- lektrodenabschnitt elektrisch verbundenen Anschlusselement, das aus dem Isolierkörper herausführbar ausgestaltet ist.The invention relates to a coupling electrode for capacitive voltage tap within an insulating body of a Bau¬ part having at least one embedded in the insulator th with high voltage potential acted upon conductor portion, with an electrode made of a semiconductive plastic electrode portion and one with the E- lektrodenabschnitt electrically connected connection element, which is designed such that it can be guided out of the insulating body.
Die Erfindung betrifft ferner ein Bauteil mit wenigstens ei¬ nem mit Hochspannungspotential beaufschlagbaren Leiterab¬ schnitt und einem aus Isolierstoff gefertigten Isolierkörper, in dem jeder Leiterabschnitt eingebettet ist.The invention further relates to a component having at least one conductor section which can be acted upon by a high-voltage potential and an insulating body made of insulating material, in which each conductor section is embedded.
Eine solche Koppelelektrode und ein solches Bauteil sind aus der EP 0 400 491 A2 bereits bekannt. Die dort gezeigte Kop¬ pelelektrode verfügt über einen ringförmigen Elektrodenab¬ schnitt aus einem halbleitenden Kunststoff. An dem Elektro¬ denabschnitt ist ein als Anschlussstift ausgebildetes An- ""■"' Schlusselement angeformt, so dass zwischen Anschlussstift und Elektrodenabschnitt eine elektrisch leitende Verbindung be¬ steht. Das dort gezeigte Bauteil weist einen Isolierkörper auf, in den die besagte Koppelelektrode eingebettet ist. Da¬ bei ist das Anschlusselement aus dem Isolierkörper herausge- führt, so dass das Potential des Elektrodenabschnittes durch zweckmäßige Anschlussstecker an dem Anschlusselement abge¬ griffen werden kann. Dabei umschließt der ringförmige Elekt¬ rodenabschnitt einen Leiterabschnitt, der sich ebenfalls durch den Isolierkörper hindurch erstreckt, wobei der Leiter¬ abschnitt und der Elektrodenabschnitt koaxial zueinander an¬ geordnet sind. Das beschriebene Bauteil wird als so genannte Durchführung in der Hoch- und Mittelspannungstechnik einge- setzt. Im Betrieb ist der Leiterabschnitt mit einem Hochspan¬ nungspotential beaufschlagt, wobei die Koppelelektrode als kapazitives Teilerelement eingesetzt wird, an dem ein zum Hochspannungspotential proportionales Potential erzeugt wird, mit dem die Spannung des Leiterabschnittes verfolgt werden kann. Die vorbekannte Koppelelektrode und das vorbekannteSuch a coupling electrode and such a component are already known from EP 0 400 491 A2. The Kop¬ pelelektrode shown there has an annular Elektrodenab¬ cut from a semiconducting plastic. An electrically conducting connection is designed as a pin check "" ■ "'closing element is denabschnitt to the Elektro¬ formed so that be¬ between pin and electrode portion. The device shown there comprises an insulating body, in said coupling electrode is embedded In this case, the connection element is led out of the insulating body, so that the potential of the electrode section can be tapped off by appropriate connection plugs on the connection element extends through the insulating body, wherein the Leiter¬ section and the electrode section are arranged coaxially to each other an¬. The component described is used as a so-called implementation in high and medium voltage technology. In operation, the conductor section is subjected to a high-voltage potential, wherein the coupling electrode is used as a capacitive divider element, at which a potential proportional to the high-voltage potential is generated, with which the voltage of the conductor section can be tracked. The previously known coupling electrode and the previously known
Bauteil weisen den Nachteil auf, dass bei der Herstellung des Isolierkörpers des Bauteils die Koppelelektrode an dem An¬ schlusselement aufwändig positioniert werden muss. Eine sol¬ che Halterung der Koppelelektrode während des Gießformprozes- ses ist darüber hinaus fehleranfällig, so dass es zu Messun- genauigkeiten kommen kann.Component have the disadvantage that in the manufacture of the insulating body of the component, the coupling electrode must be positioned consuming at the An¬ circuit element. Such a mounting of the coupling electrode during the casting process is moreover susceptible to errors, so that measurement inaccuracies may occur.
Der Erfindung liegt die Aufgabe zugrunde, eine Koppelelektro¬ de und ein Bauteil der eingangs genannten Art bereitzustel- len, die kostengünstig sind, wobei ein genaues Ausrichten der Koppelelektrode innerhalb des gussgeformten Isolierkörpers ermöglicht ist.The invention has for its object to provide a Koppelelektro¬ de and a component of the type mentioned, which are inexpensive, with an accurate alignment of the coupling electrode is made possible within the cast-molded insulating.
Die Erfindung löst diese Aufgabe durch eine 'aus einem nicht leitfähigen Material bestehende Halterung, die mit dem Elekt¬ rodenabschnitt verbunden ist und die Abstellmittel aufweist, mit denen eine isolierte Lagerung des Elektrodenabschnittes ermöglicht ist.The invention achieves this object by means of a holder which is made of a nonconductive material and which is connected to the electrode section and has the parking means with which an insulated mounting of the electrode section is made possible.
Erfindungsgemäß weist die Koppelelektrode eine nicht leitfä¬ hige Halterung auf. Aufgrund der Nichtleitfähigkeit ist es erfindungsgemäß möglich, die Koppelelektrode mit den Abstell¬ mitteln der Halterung beispielsweise auf einem in einer spä- teren Anwendung Erdpotential aufweisenden Bereich des Bau¬ teils in Kontakt zu bringen, ohne dass dadurch die elektri¬ schen Eigenschaften der Koppelelektrode negativ beeinträch¬ tigt sind. Auf diese Weise wird die Aufgabe der Positionie- rung der Koppelelektrode und der Ausbildung eines elektri¬ schen Anschlusspunktes erfindungsgemäß getrennt.According to the invention, the coupling electrode has a non-conductive holder. Due to the nonconductivity, it is possible according to the invention, the coupling electrode with the Abstell¬ means of the holder, for example, on a in a late the application of earth potential having the Bau¬ part in contact bring, without thereby the elektri¬'s properties of the coupling electrode are negatively impaired tigt. In this way, the object of positioning the coupling electrode and forming an electrical connection point is separated according to the invention.
Zweckmäßigerweise besteht der Isolierkörper aus Gießharz. Der gewählte halbleitende Kunststoff, aus dem der Elektrodenab- schnitt gefertigt ist, und Gießharz weisen einen ähnlichen Wärmeausdehnungskoeffizienten auf, so dass insbesondere bei hohen Temperaturänderungen entstehende mechanische Spannungen innerhalb des Isolierkörpers vermieden sind.Conveniently, the insulator consists of cast resin. The selected semiconducting plastic, from which the electrode section is made, and casting resin have a similar coefficient of thermal expansion, so that mechanical stresses occurring within the insulating body, especially in the case of high temperature changes, are avoided.
Zweckmäßigerweise ist ein mit einem Leiter verbundener An¬ schlussstecker vorgesehen, der auf das Anschlusselement auf¬ schiebbar ist. Auf diese Weise ist die Koppelelektrode lösbar mit anderen elektronischen Geräten, beispielsweise Schutzge¬ räten, verbindbar.Conveniently, a connection plug connected to a conductor is provided which can be slid onto the connection element. In this way, the coupling electrode is releasably connectable with other electronic devices, such as Schutzge¬ devices.
Gemäß einer diesbezüglich zweckmäßigen Weiterentwicklung Dichtmittel vorgesehen, die zum Halten des Anschlusssteckers in dem Isolierkörper eingerichtet sind. Die Dichtmittel sind beispielsweise vor dem Einführen des Anschlusssteckers in dem Isolierkörper des Bauteils angeordnet. Der Anschlussstecker wird dann einfach nachträglich in das Bauteil eingesteckt und dabei auf die Dichtmittel aufgeschoben. Mit Hilfe der Dicht¬ mittel ist neben einem einfachen elektrischen Anschluss der Koppelelektrode auch eine elektrische Isolierung des An- schlusssteckers in dem Bauteil ermöglicht. Die Dichtmittel verhindern darüber hinaus den Eintritt von Feuchtigkeit oder sonstiger Verunreinigungen. Selbstverständlich ist es im Rah¬ men der Erfindung auch möglich, die Dichtmittel an dem An- schlussstecker zu befestigen, bevor dieser in den Isolierkör¬ per eingeführt wird.According to an expedient further development, sealing means are provided which are set up to hold the connection plug in the insulating body. The sealing means are arranged for example before insertion of the connector plug in the insulating body of the component. The connector is then simply plugged into the component and pushed onto the sealant. With the aid of the sealing means, in addition to a simple electrical connection of the coupling electrode, an electrical insulation of the connection plug in the component is also made possible. The sealants also prevent the entry of moisture or other contaminants. Of course, within the scope of the invention, it is also possible to apply the sealing means to the To fix the end plug before it is inserted into the Isolierkör¬ per.
Bei einer diesbezüglich zweckmäßigen Weiterentwicklung beste- hen die Dichtmittel aus einem Elastomer. Der Elastomer ist vorteilhafterweise ein Isolierstoff. Ein wie aus dem Stand der Technik bekannt gewordenes anschließendes Vergießen des Anschlusssteckers mit Dichtmaterialien entfällt erfindungsge¬ mäß. Das Elastomer ist beispielsweise ein zweckmäßiger SiIi- konkautschuk oder dergleichen.In an appropriate further development, the sealants consist of an elastomer. The elastomer is advantageously an insulating material. A subsequent potting of the connection plug with sealing materials, which became known from the prior art, is eliminated according to the invention. The elastomer is, for example, a suitable SiIi konkautschuk or the like.
Bei einer bevorzugten Weiterentwicklung der Erfindung sind die Dichtmittel in dem Isolierkörper des Bauteils verrastbar, Hierzu sind in dem Isolierkörper beispielsweise Rastnuten ausgeformt, in welche die Dichtmittel beim Einschieben des Anschlusssteckers gepresst werden. Die Rastnuten befinden sich beispielsweise in einer in dem Isolierkörper vorgesehe¬ nen Ausnehmung, in die das Anschlusselement hineinragt. Die Dichtmittel weisen eine solche Elastizität auf, dass einer- seits ein Eindringen in die Rastnuten und somit ein Hinter¬ greifen ermöglicht ist. Andererseits ist die Elastizität so eingestellt, dass eine ausreichend hohe Haltekraft bereitge¬ stellt ist, um ein ungewolltes Hinausgleiten des Anschluss¬ steckers aus dem Isolierkörper zu vermeiden. Die Dichtmittel sind beispielsweise ein einziges Dichtelement.In a preferred further development of the invention, the sealing means can be latched in the insulating body of the component, for this purpose, for example, latching grooves are formed in the insulating body into which the sealing means are pressed when the connector plug is pushed in. The latching grooves are located, for example, in a recess which is provided in the insulating body and into which the connecting element protrudes. The sealing means have such an elasticity that on the one hand penetration into the locking grooves and thus a rear grip is possible. On the other hand, the elasticity is adjusted so that a sufficiently high holding force is bereitge¬ provides to avoid accidental slipping out of Anschlu߬ plug from the insulator. The sealing means are for example a single sealing element.
Vorteilhafterweise enthält der halbleiterfähige Kunststoff Polyphenylensulfid und Kohlefasern. Mit dieser Mischung ist für eine ausreichend hohe Leitfähigkeit gesorgt, wobei der Temperaturausdehnungskoeffizient weitestgehend an denjenigen des üblicherweise bei der Herstellung des Isolierkörpers ver¬ wendeten Gießharzes angepasst ist. Mechanische Spannungen zwischen dem Elektrodenabschnitt und dem Isolierkörper mit Materialbrüchen im Gefolge werden auf diese Weise vermieden. Der halbleitfähige Kunststoff besteht vorzugsweise nur aus den beiden besagten Bestandteilen. Jedoch sind im Rahmen die¬ ser Weiterentwicklung auch übliche Zusatzstoffe einsetzbar, wobei sich der angegebene Anteil der Kohlenstofffasern immer auf das Gesamtgewicht des Elektrodenabschnitts bezieht.Advantageously, the semiconductive plastic contains polyphenylene sulfide and carbon fibers. With this mixture, a sufficiently high conductivity is ensured, wherein the coefficient of thermal expansion is largely adapted to that of the casting resin typically used in the production of the insulating body. Mechanical stresses between the electrode portion and the insulating body with Material breaks in the wake are avoided in this way. The semiconductive plastic preferably consists only of the two said components. However, customary additives can also be used in the course of this further development, the stated proportion of the carbon fibers always referring to the total weight of the electrode section.
Gemäß einer diesbezüglich zweckmäßigen Weiterentwicklung liegt der Anteil der Kohlefasern zwischen 15 Gew.-% und 35 Gew.-%. Ein Kohlefaseranteil in diesem Bereich hat sich als ausreichend erwiesen, um die notwendige Leitfähigkeit be¬ reitzustellen.According to an expedient further development, the proportion of carbon fibers is between 15% by weight and 35% by weight. A carbon fiber content in this range has proven to be sufficient to provide the necessary conductivity be¬.
Vorteilhafterweise besteht das nichtleitfähige Material aus Polyphenylensulfid. Wie bereits im Zusammenhang mit dem durch den Kohlenstoffanteil halbleitfähig gemachten Elektrodenab¬ schnitt ausgeführt wurde, weist Polyphenylensulfid einen Tem¬ peraturausdehnungskoeffizienten auf, der demjenigen vom Gie߬ harz weitestgehend entspricht. Somit sind auch Spannungen zwischen der Halterung und dem Isolierkörper erfindungsgemäß vermieden.Advantageously, the nonconductive material is polyphenylene sulfide. As already explained in connection with the electrode portion made semiconductive by the carbon fraction, polyphenylene sulfide has a thermal expansion coefficient which largely corresponds to that of the casting resin. Thus, stresses between the holder and the insulating body are inventively avoided.
Abweichend davon weist das nicht leitfähige Material eine Mi- ■"•" schung aus Polyphenylensulfid und Glasfasern auf. Die Glasfa- sern verstärken die Halterung, so dass eine erhöhte mechani¬ sche Festigkeit bereitgestellt ist. Auf diese Weise kann eine Zerstörung oder Verformung der Koppelelektrode zu Beispiel beim Herstellungsverfahren vermieden werden.Deviating from this, the non-conductive material, a micro ■ "•" Research of polyphenylene sulfide and glass fibers. The glass fibers reinforce the holder, so that an increased mechanical strength is provided. In this way, destruction or deformation of the coupling electrode can be avoided for example in the manufacturing process.
Zweckmäßigerweise weist der Elektrodenabschnitt eine aufge¬ rauhte Oberfläche auf. Durch die aufgerauhte Oberfläche wird die Haftung des Elektrodenabschnittes in dem Isolierkörper verbessert. Damit wird eine ablösefreie Verbindung zwischen Elektrodenabschnitt und Isolierkörper gewährleistet und ein Auftreten von Entladungsprozessen verhindert.Expediently, the electrode section has a roughened surface. The roughened surface improves the adhesion of the electrode section in the insulating body. This is a free transfer between Ensures electrode portion and insulator and prevents occurrence of discharge processes.
Vorteilhafterweise weist die Halterung einen mit dem Elektro- denabschnitt verbundenen Haltering auf.Advantageously, the holder has a retaining ring connected to the electrode section.
Bei einer diesbezüglich zweckmäßigen Weiterentwicklung ist der Haltering mit Abstellfüßen verbunden, deren freies Ende die Abstellmittel ausbilden.In a related expedient development of the retaining ring is connected to Abstellfüßen whose free end form the Abstellmittel.
Das erfindungsgemäße Bauteil verfügt über eine wie zuvor be¬ schriebene Koppelelektrode und ist aufgrund der einfacheren Positionierung der Koppelelektrode einfacher und kostengüns¬ tiger herstellbar.The component according to the invention has a coupling electrode as described above and, owing to the simpler positioning of the coupling electrode, can be produced more simply and more inexpensively.
Zweckmäßigerweise ist das Bauteil eine Durchführung, mit de¬ ren Hilfe ein Hindurchführen von Leiterschnitten mit Hoch¬ spannungspotential durch eine beispielsweise mit Erdpotential beaufschlagte Wandung ermöglicht ist, ohne dass es zu Entla- dungsprozessen kommt.Expediently, the component is a leadthrough, with the aid of which it is possible to pass conductor sections with a high-voltage potential through a wall which is acted upon, for example, by ground potential, without causing discharge processes.
Abweichend hiervon ist das Bauteil ein so genannter stützer, dessen freie Enden einerseits mit Bauteilen auf Hochspan¬ nungspotential und andererseits^mit Bauteilen auf Erdpotenti- al verbunden sind.Notwithstanding this, the component is a so-called support, the free ends of which are connected on the one hand with components to high voltage potential and on the other hand ^ with components on Erdpotenti- al.
Vorteilhafterweise ist die Koppelelektrode vollständig in den Isolierkörper eingebettet.Advantageously, the coupling electrode is completely embedded in the insulating body.
Weitere zweckmäßige Ausgestaltungen und vorteile der Erfin¬ dung sind Gegenstand der nachfolgenden Beschreibungen von Ausführungsbeispielen unter Bezug auf die Figuren der Zeich- Further expedient refinements and advantages of the invention are the subject of the following descriptions of exemplary embodiments with reference to the figures of the drawing.
nung, wobei gleiche Bezugszeichen auf gleichwirkende Bauteile verweisen und wobeition, wherein like reference numerals refer to like-acting components and wherein
Figur 1 eine perspektivische Ansicht eines Ausführungs- beispiels der erfindungsgemäßen Koppelelektrode,FIG. 1 shows a perspective view of an exemplary embodiment of the coupling electrode according to the invention,
Figur 2 eine Querschnittsansicht eines Ausführungsbei¬ spiels des erfindungsgemäßen Bauteils,FIG. 2 shows a cross-sectional view of an embodiment of the component according to the invention,
Figur 3 eine vergrößerte Darstellung des Bauteils gemäß Figur 2 in einer Querschnittsansicht undFigure 3 is an enlarged view of the component according to Figure 2 in a cross-sectional view and
Figur 4 ein weiteres Ausführungsbeispiel des erfindungs¬ gemäßen Bauteils in einer Querschnittsansicht zeigen.Figure 4 show a further embodiment of the erfindungs¬ contemporary component in a cross-sectional view.
Figur 1 zeigt ein Ausführungsbeispiel der erfindungsgemäßen Koppelelektrode 1 in einer perspektivischen Darstellung. Die Koppelelektrode 1 weist einen ringförmigen Elektrodenab- schnitt 2 sowie einen elektrisch mit diesem verbundenen An¬ schlussstift 3 als Anschlusselement auf, welcher bei dem in Figur 1 gezeigten Beispiel an der unteren Ringseite des E- lektrodenabschnittes 2 befestigt ist und von dort aus nach außen ragt. ■"'" Figure 1 shows an embodiment of the coupling electrode 1 according to the invention in a perspective view. The coupling electrode 1 has an annular electrode section 2 and an attachment pin 3 connected electrically to it as a connection element, which in the example shown in FIG. 1 is fastened to the lower ring side of the electrode section 2 and protrudes outwardly therefrom , ■ "'"
Die Koppelelektrode 1 weist weiterhin eine Halterung 4 auf, die an ihrer Befestigungsseite 5 fest mit dem Elektrodenab¬ schnitt 2 verbunden ist. Hierzu weist die Halterung 4 einen mit dem Elektrodenabschnitt verklemmten Haltering 4a auf, an den drei identisch ausgebildete L-förmige Haltefüße 4b ange¬ formt sind. Die längeren Schenkel der L-förmigen Haltefüße 4b der Halterung 4 sind als freie Enden ausgestaltet, so dass Abstellmittel 7 ausgebildet sind. Die drei freien Enden 7 de- finieren eine plane Abstellfläche, auf der die Koppelelektro¬ de 1 sicher und stabil gelagert werden kann.The coupling electrode 1 also has a holder 4, which is fixedly connected to the electrode section 2 on its fastening side 5. For this purpose, the holder 4 has a holding ring 4 a clamped to the electrode section, to which three identically formed L-shaped holding feet 4 b are formed. The longer legs of the L-shaped support feet 4b of the holder 4 are designed as free ends, so that parking means 7 are formed. The three free ends 7 Finishing a plane shelf on which the Koppelelektro¬ de 1 can be safely and stably stored.
Der Elektrodenabschnitt 2 der Koppelelektrode 1 ist aus einem 5 halbleitenden Kunststoff und in diesem Fall aus Polyphenylen- sulfid mit einem Kohlenstoffanteil von 30 Gew.% gefertigt. Die elektrisch nicht leitende Halterung 4 ist hingegen aus reinem Polyphenylensulfid hergestellt, das mit Glasfasern me¬ chanisch verstärkt wurde.The electrode section 2 of the coupling electrode 1 is made of a 5 semiconducting plastic and in this case made of polyphenylene sulfide with a carbon content of 30 wt.%. The electrically non-conductive support 4, however, is made of pure polyphenylene sulfide, which was mechanically reinforced with glass fibers.
1010
Figur 2 und 3 zeigt ein Ausführungsbeispiel eines erfindungs¬ gemäßen Bauteils 8 in einer Querschnittsansicht. Das hier ge¬ zeigte Bauteil 8 weist einen rotationssymmetrischen Isolier¬ körper 9 auf, der aus Gießharz besteht. Durch den Isolierkör-Figure 2 and 3 shows an embodiment of a erfindungs¬ contemporary component 8 in a cross-sectional view. The component 8 shown here has a rotationally symmetrical insulating body 9, which consists of casting resin. Due to the insulating
15 per 9 erstreckt sich ein Leiterabschnitt 10 hindurch, der an seinen beiden freien Enden mit Befestigungsmitteln 11 und 12 ausgerüstet ist. Durch die Befestigungsmittel 11, 12 ist der Leiterabschnitt mit Hochspannungspotential führenden Leitern verbindbar, so dass im Betriebszustand der Leiterabschnitt 1015 by 9 extends a conductor portion 10 therethrough, which is equipped at its two free ends with fastening means 11 and 12. By fastening means 11, 12 of the conductor portion with high voltage potential leading conductors is connected, so that in the operating state of the conductor portion 10th
20 selbst auf einem Hochspannungspotential liegt .20 itself is at a high voltage potential.
Zur Befestigung des Bauteils 8, bei dem es sich hier um eine Durchführung handelt, in der Durchgangsöffnung eines auf Erd- "'*" potential liegenden Gehäuses dient ein Flansch 13, der sich 25 mit seinem freien Ende 14 in den Isolierkörper 9 hinein er¬ streckt und dort mit einem elastischen Material 15 abgedich¬ tet ist. Zum Messen des Potentials des Leiterabschnittes 10 ist die Koppelelektrode 1 mit ihrem Elektrodenabschnitt 2 konzentrisch um den Leiterabschnitt 10 angeordnet und eben- 30 falls in dem Isolierkörper 9 eingebettet. Dabei setzt die 1 Halterung 4 mit ihren Abstellmitteln 7 auf dem Flansch 13 auf. Zum Abgriff des Potentials des Elektrodenabschnittes 2 an dem Anschlussstift 3 ist ein mit einer Anschlussleitung 14 verbundener Anschlussstecker 15 vorgesehen, wobei die An¬ schlussleitung 14 und bis auf sein den Anschlussstift 3 kon¬ taktierendes Einführende auch der Anschlussstecker 15 von ei¬ nem Isolierstoff flexibel umgeben sind. Der Anschlussstecker 15 ist durch Dichtmittel 16, die aus einem elastischen und nicht leitenden Material, wie beispielsweise Silikon oder Si¬ likonkautschuk, gefertigt sind, gegenüber der Außenumgebung isoliert an dem Isolierkörper 9 gehalten. Durch Eindrücken des Anschlusssteckers 15 in eine in dem Isolierkörper 9 aus- gebildete Aussparung 17 wird das Dichtmittel 16 in Rastnuten gepresst, die in der Aussparung 17 ausgebildet sind. Hierbei kommt es zum Verklemmen des Anschlusssteckers 15 in der Aus¬ sparung 17 durch die verrasteten Dichtmittel 16, so dass eine stabile und elektrisch dichte Halterung des Anschlusssteckers 15 bereitgestellt.For fixing of the component 8, which is here to a passage in the through hole of a flange 13, which er¬ to 25 with its free end 14 in the insulating body 9 into serves to earth "'*" potential lying housing stretches and abgedich¬ tet there with an elastic material 15. For measuring the potential of the conductor section 10, the coupling electrode 1 with its electrode section 2 is arranged concentrically around the conductor section 10 and likewise embedded in the insulating body 9. In this case, the 1 bracket 4 with its Abstellmitteln 7 on the flange 13. For tapping off the potential of the electrode section 2 on the connecting pin 3 is a with a connecting line fourteenth connected connection plug 15 is provided, wherein the An¬ circuit line 14 and up to the pin 3 kon¬ taktierendes introductory and the connector 15 are surrounded by ei¬ nem insulating material flexible. The connection plug 15 is held by insulating means 16, which are made of an elastic and non-conductive material, such as silicone or Si¬ likonkautschuk, isolated from the outside environment to the insulating body 9. By pressing the connector 15 into a recess 17 formed in the insulating body 9, the sealing means 16 is pressed into locking grooves which are formed in the recess 17. This results in jamming of the connector 15 in the Aus¬ saving 17 by the latched sealing means 16 so that a stable and electrically sealed mounting of the connector 15 is provided.
Figur 3 zeigt eine vergrößerte Darstellung der Anschlusslei¬ tung 14 mit dem Anschlussstecker 15 und den Dichtmitteln 16. In dieser Darstellung ist erkennbar, dass der Elektrodenab- schnitt 2 auf einem äußeren Ringabschnitt 4a der Halterung 4 verklemmt ist. Der Anschlussstift 3 ist in dem gezeigten Aus¬ führungsbeispiel nicht einstückig mit dem Elektrodenabschnitt 2 ausgebildet. Vielmehr ist der Anschlussstift 3 in einer Einpressöffnung des Elektrodenabschnittes 2' positioniert und mit diesem verklemmt. Die Dichtmittel 16 sind in dem gezeig¬ ten Ausführungsbeispiel als ein einziges elastisches Silikon¬ element realisiert .FIG. 3 shows an enlarged view of the connection line 14 with the connection plug 15 and the sealing means 16. In this illustration, it can be seen that the electrode section 2 is clamped on an outer ring section 4a of the holder 4. In the exemplary embodiment shown, the connecting pin 3 is not formed in one piece with the electrode section 2. Rather, the terminal pin 3 is positioned in a press-in opening of the electrode section 2 'and clamped with this. The sealing means 16 are realized in the gezeig¬ th embodiment as a single elastic Silikon¬ element.
Es kann im Rahmen der Erfindung auch zweckmäßig sein, den An- schlussstecker 15 bereits vor dem Einführen auf den An¬ schlussstift 3 außen mit einem Schrumpfschlauch zu überzie¬ hen. Auf diese weise wir im Zusammenwirken mit den Dichtmit¬ teln 16 die Dichtigkeit erhöht. Es sei auch darauf hingewie- sen, dass die Dichtmittel 16 sich nicht nur innerhalb der Aussparung 17 erstrecken können, sondern sich auch aus dieser heraus geführt sein können.It may also be expedient in the context of the invention to coat the connection plug 15 with a heat-shrinkable tube on the outside prior to insertion on the connecting pin 3 on the outside. In this way, we in cooperation with the means 16 Dichtmit¬ increases the tightness. It should also be pointed out sen, that the sealing means 16 can not only extend within the recess 17, but can also be guided out of this.
Figur 4 zeigt ein weiteres Ausführungsbeispiel eines Bauteils gemäß der Erfindung, wobei es sich hier um eine so genannte Stützisolierung 18 oder mit anderen Worten um einen Stützer handelt. Die Stützisolierung 18 weist wieder einen Leiterab¬ schnitt 19 auf, der sich jedoch nicht gänzlich durch den Iso- lierkörper 9 der Stützisolierung 18 hindurch erstreckt, son¬ dern ein freies Ende aufweist, das vollständig in den Iso¬ lierkörper 9 eingebettet ist. Der Leiterabschnitt 19 weist wieder Befestigungsmittel 11 zum Befestigen eines nicht ge¬ zeigten Leiters mit Hochspannungspotential auf. An dem den Befestigungsmitteln 11 gegenüberliegenden Ende der Stütziso¬ lierung 18 bildet diese eine Abstellfläche aus, an der die Stützisolierung 18 an einer auf Erdpotential liegenden Ober¬ fläche befestigbar ist. Ausladende Schirme 20 dienen zur Er¬ höhung des Kriechweges entlang der Außenoberfläche der Stütz- isolierung. Weiterhin ist erkennbar, dass in den Isolierkör¬ per 9 die erfindungsgemäße Koppelelektrode 1 eingebettet ist. Das mit dem Elektrodenabschnitt 2 fest und elektrisch leitend verbundene Anschlusselement 3 ist in dem gezeigten Ausfüh¬ rungsbeispiel nicht stiftförmig ausgebildet, sondern in einem 90"-Winkel gebogen, wobei es mit seinem freien Ende in eine Aussparung 21 des Isolierkörpers 9 hineinragt.Figure 4 shows a further embodiment of a component according to the invention, which is a so-called support insulation 18 or in other words is a supporter. The support insulation 18 again has a conductor section 19 which, however, does not extend completely through the insulating body 9 of the support insulation 18, but instead has a free end which is completely embedded in the insulation body 9. The conductor section 19 again has fastening means 11 for fastening a conductor, not shown, to the high-voltage potential. At the end of the support insulation 18 which is opposite the attachment means 11, it forms a storage surface on which the support insulation 18 can be fastened to a surface lying at ground potential. Extending screens 20 serve to increase the creepage distance along the outer surface of the support insulation. Furthermore, it can be seen that the coupling electrode 1 according to the invention is embedded in the insulating body 9. In the exemplary embodiment shown, the connection element 3, which is firmly and electrically conductively connected to the electrode section 2, is not pin-shaped, but bent at a 90 "angle, with its free end projecting into a recess 21 of the insulating body 9.
Das Einführende des Anschlusssteckers 15 ist an die Tiefe der Aussparung 21 angepasst, so dass ein gesicherter Abgriff des Potentials des Elektrodenabschnittes 2 auch bei dieser Aus¬ führungsform des Bauteils 18 ermöglicht ist. Wieder dient ein verrastbares Dichtmittel 16 zur sicheren Befestigung des An¬ schlusssteckers 15 an dem Isolierkörper 9 sowie zur elektri- sehen Abdichtung des Anschlusssteckers 15 und zum Verhindern des Eintritts von Feuchtigkeit in die Aussparung 21. The insertion end of the connection plug 15 is adapted to the depth of the recess 21, so that a secured tap of the potential of the electrode section 2 is also possible in this embodiment of the component 18. Again, a latchable sealant 16 is used for secure attachment of the An¬ connector 15 on the insulating body 9 and for electrical see sealing of the connector 15 and to prevent the entry of moisture into the recess 21st

Claims

Patentansprüche claims
1. Koppelelektrode (1) zum kapazitiven Spannungsabgriff in¬ nerhalb eines Isolierkörpers (9) eines Bauteils (8,18), das wenigstens einen in den Isolierkörper (9) eingebetteten mit Hochspannungspotential beaufschlagbaren Leiterabschnitt (10, 19) aufweist, mit einem aus einem halbleitenden Kunststoff bestehenden Elektrodenabschnitt (2) und einem mit dem Elekt¬ rodenabschnitt (2) elektrisch verbundenen Anschlusselement (3), das aus dem Iso.lierkörper (9) herausführbar ausgestaltet ist, g e k e n n z e i c h n e t d u r c h eine aus einem nicht leitfähigem Material bestehende Halte- rung (4), die mit dem Elektrodenabschnitt (2) verbunden ist und die Abstellmittel (7) aufweist, mit denen eine isolierte Lagerung des Elektrodenabschnittes (2) ermöglicht ist.1. coupling electrode (1) for capacitive voltage tap in¬ within an insulating body (9) of a component (8,18) having at least one embedded in the insulating body (9) can be acted upon with high voltage potential conductor portion (10, 19), with one of a Semiconductor plastic existing electrode portion (2) and one with the Elekt¬ rodenabschnitt (2) electrically connected connection element (3), which is designed herausführbar from Iso.lierkörper (9), characterized by a consisting of a non-conductive material holding tion (4 ), which is connected to the electrode portion (2) and the Abstellmittel (7), with which an insulated mounting of the electrode portion (2) is made possible.
2. Koppelelektrode (1) gemäß Anspruch 1, g e k e n n z e i c h n e t d u r c h einen mit einem Leiter (14) verbundenen Anschlussstecker (15), der auf das Anschlusselement (3) aufschiebbar ist.2. Coupling electrode (1) according to claim 1, e g e e n e e c h e n e d h e a connected to a conductor (14) connector (15) which can be pushed onto the connection element (3).
3. Koppelelektrode (1) nach Anspruch 2, g e k e n n z e i c h n e t d u r c h Dichtmittel (16) , die zum Halten des Anschlusssteckers (15) in dem Isolierkörper (9) eingerichtet sind.3. coupling electrode (1) according to claim 2, g e k e n e n e c e n e t d u r c h sealing means (16) which are adapted to hold the connector plug (15) in the insulating body (9).
4. Koppelelektrode (1) nach Anspruch 3, d a d u r c h g e k e n n z e i c h n e t, dass die Dichtmittel (16) aus einem Elastomer bestehen.4. Coupling electrode (1) according to claim 3, d a d e r c h e c e n e c e s in that the sealing means (16) consist of an elastomer.
5. Koppelelektrode (1) nach Anspruch 3 oder 4, d a d u r c h g e k e n n z e i c h n e t, dass die Dichtmittel (16) in dem Isolierkörper (9,19) verrastbar sind.5. coupling electrode (1) according to claim 3 or 4, characterized in that the sealing means (16) in the insulating body (9,19) can be latched.
6. Koppelelektrode (1) nach einem der vorhergehenden Ansprü- che, d a d u r c h g e k e n n z e i c h n e t, dass das halbleitfähige Material Polyphenylensulfid und Kohlefa¬ sern enthält.6. Coupling electrode (1) according to one of the preceding claims, characterized in that the semiconductive material contains polyphenylene sulfide and carbon fibers.
7. Koppelelektrode (1) nach Anspruch 6, d a d u r c h g e k e n n z e i c h n e t, dass der Anteil der Kohlefasern zwischen 15 Gew.-% und 35 Gew.% bezogen auf das Gesamtgewicht des halbleitfähigen Materials beträgt.7. Coupling electrode (1) according to claim 6, wherein a portion of the carbon fibers is between 15% by weight and 35% by weight, based on the total weight of the semiconductive material.
8. Koppelelektrode (1) nach einem der vorhergehenden Ansprü¬ che, d a d u r c h g e k e n n z e i c h n e t, dass das nicht leitfähige Material aus Polyphenylensulf id besteht.8. Coupling electrode (1) according to one of the preceding claims, characterized in that the non-conductive material consists of polyphenylene sulfide id.
9. Koppelelektrode (1) nach einem der Ansprüche 1 bis 7, d a d u r c h g e k e n n z e i c h n e t, dass das nicht leitfähige Material eine Mischung aus Polyphenylen¬ sulfid und Gasfäsern enthält.9. Coupling electrode (1) according to any one of claims 1 to 7, d a d e r c h e c e n e s in that the non-conductive material contains a mixture of Polyphenylen¬ sulfide and gas cylinders.
10. Koppelelektrode (1) nach einem der vorhergehenden Ansprü¬ che, d a d u r c h g e k e n n z e i c h n e t, dass der Elektrodenabschnitt (2) eine aufgeraute Oberfläche auf- weist.10. Coupling electrode (1) according to one of the preceding claims, wherein a portion of the electrode section (2) has a roughened surface.
11. Koppelelektrode (1) nach einem der vorhergehenden An¬ sprüche, d a d u r c h g e k e n n z e i c h n e t, dass die Halterung (4) einen mit dem Elektrodenabschnitt (2) ver¬ bundenen Haltering (4a) aufweist.11. coupling electrode (1) according to one of the preceding An¬ claims, characterized in that the holder (4) has a with the electrode portion (2) ver¬ bound retaining ring (4a).
12. Koppelelektrode (1) nach Anspruch 11, d a d u r c h g e k e n n z e i c h n e t, dass der Haltering (4a) mit Abstellfüßen (4b) verbunden ist, deren freies Ende die Abstellmittel (7) ausbilden.12. coupling electrode (1) according to claim 11, d a d u r c h e g e k e n e s in that the retaining ring (4 a) is connected to Abstellfüßen (4 b) whose free end form the Abstellmittel (7).
13. Bauteil (8, 18) mit wenigstens einem mit Hochspannungspo¬ tential beaufschlagbaren Leiterabschnitt (10,19) und einem aus Isolierstoff gefertigten Isolierkörper (9), in dem jeder Leiterabschnitt (10,19) eingebettet ist, g e k e n n z e i c h n e t d u r c h eine Koppelelektrode (1) gemäß einem der vorhergehenden An¬ sprüche.13. component (8, 18) having at least one conductor element (10, 19) which can be acted upon by high-voltage potential and an insulating body (9) made of insulating material, in which each conductor section (10, 19) is embedded, characterized by a coupling electrode (1) according to one of the preceding An¬ claims.
14. Bauteil (8, 18) gemäß Anspruch 13, d a d u r c h g e k e n n z e i c h n e t, dass die Koppelelektrode (1) vollständig in den Isolierkörper (9) eingebettet ist.14. The component (8, 18) according to claim 13, wherein a coupling electrode (1) is completely embedded in the insulating body (9).
15. Bauteil (8, 18) nach Anspruch 13 oder 14, d'a d u r c h g e k e n n z e i c h n e t, dass ' - in dem Isolierkörper (9) Rastnuten zum Verrasten von Dicht¬ mitteln vorgesehen sind. 15. Component (8, 18) according to claim 13 or 14, d'a characterized in that ' - are provided in the insulating body (9) locking grooves for latching Dicht¬ means.
EP05762939.6A 2004-07-16 2005-07-14 Coupling electrode for capacitive voltage tapping within the insulation body of a duct or an insulator Active EP1769513B1 (en)

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DE102004035176A1 (en) 2006-02-16
NO20070844L (en) 2007-04-16
CN1985336A (en) 2007-06-20
EP1769513B1 (en) 2015-08-26
WO2006008265A1 (en) 2006-01-26
US20080024116A1 (en) 2008-01-31
CN100583314C (en) 2010-01-20
NO337354B1 (en) 2016-03-21
ES2552336T3 (en) 2015-11-27
DE102004035176B4 (en) 2014-09-25

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