EP1304772B1 - Connector for medium-voltage distribution system - Google Patents

Connector for medium-voltage distribution system Download PDF

Info

Publication number
EP1304772B1
EP1304772B1 EP02018192A EP02018192A EP1304772B1 EP 1304772 B1 EP1304772 B1 EP 1304772B1 EP 02018192 A EP02018192 A EP 02018192A EP 02018192 A EP02018192 A EP 02018192A EP 1304772 B1 EP1304772 B1 EP 1304772B1
Authority
EP
European Patent Office
Prior art keywords
contact
cable
cage
cable connector
inner conductor
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.)
Expired - Lifetime
Application number
EP02018192A
Other languages
German (de)
French (fr)
Other versions
EP1304772A3 (en
EP1304772A2 (en
Inventor
Siegfried Dr.-Ing. Ruhland
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.)
Grid Solutions SAS
Original Assignee
Alstom SA
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 Alstom SA filed Critical Alstom SA
Publication of EP1304772A2 publication Critical patent/EP1304772A2/en
Publication of EP1304772A3 publication Critical patent/EP1304772A3/en
Application granted granted Critical
Publication of EP1304772B1 publication Critical patent/EP1304772B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • H01R25/142—Their counterparts

Definitions

  • the invention is based on a cable connection part for a medium-voltage switchgear, with which a conductor of the medium-voltage switchgear can be connected to a cable.
  • Document FR-A-2 774 814 discloses a cable connector according to the preamble of claim 1.
  • the object of the invention is to provide a cable connection part, which requires less installation effort and less isolation effort.
  • the invention thus provides no more screw. Instead, according to the invention, there is a contact system in which the cable inner conductor of the cable to be connected to the conductor can be inserted.
  • the contact system is designed such that the cable is fixed in the radial and in the axial direction.
  • the invention opens up the possibility of accommodating the contact system of the cable connection part in a simple manner within an insulating body.
  • the current-carrying components are arranged within the insulating body, so that further insulation, for example by means of phase barriers or the like is no longer required.
  • the contact system on a contact part with therein contact springs wherein a contact cage on the free End of the cable inner conductor can be plugged and wherein the cable inner conductor with the contact cage between the contact springs of the contact system can be inserted.
  • the contact cage thus forms a connection with the contact springs, with which the radial and axial fixation of the cable inner conductor within the contact system is achieved.
  • the contact cage has an outwardly projecting part. This part then comes into operative contact with the contact springs in such a way that, in particular, the axial fixation of the cable inner conductor within the contact system is further improved.
  • the contact cage on a plurality of segments which can be held together by means of a rotating spring and thus can be plugged onto the cable inner conductor.
  • FIG. 1 shows a cable connection part 1 with which a conductor L is connected to a cable K. can.
  • the cable connection part 1 is formed substantially rotationally symmetrical.
  • the cable connection part 1 has a fixed contact 2, which is firmly connected to the conductor L, for example, welded. With the fixed contact 2, a contact system 3 is firmly connected, which will be explained in more detail in connection with the figure 2.
  • the fixed contact 2 and the contact system 3 are cast in an insulating body 4.
  • the insulating body may for example consist of silicone or EPDM (ethylene-propylene sealing material).
  • the insulating body 4 is cup-shaped, which should be indicated in the figure 1 with the aid of the dashed line.
  • the cable K can be introduced.
  • the cable K consists of a cable inner conductor 5, a main insulation 6 arranged above it and a cable insulation 7 arranged again above it.
  • one or more potential controls 8 and one or more capacitive conductive linings 9 are further cast or cast. Over or over the capacitive Leitbeläge 9, the Jardinan gleichteil 1 are connected via a capacitance to ground. A voltage test system or voltage indication system can be connected to the capacitance.
  • the cable connection part 1 can be designed multipolar. In this case, several, in particular up to four cables per phase may be present.
  • the contact system 3 is shown in more detail.
  • the contact system 3 a contact part 10 which is fixedly connected to the fixed contact 2, for example, welded.
  • the contact part 10 is cup-shaped and consists of an electrically conductive material.
  • contact springs 11 are arranged in the interior of the contact part 10, on the circumferential inner wall of the contact part 10. There are a plurality of such contact springs 11 along the circumference of the contact part 10.
  • the contact springs 11 are made of an electrically conductive material.
  • the contact springs 11 can be firmly connected to the contact part 10, in particular welded.
  • the cable inner conductor 5 is shown enlarged.
  • annular contact cage 12 is attached on the free end of the cable inner conductor 5.
  • the inner diameter of the contact cage 12 substantially corresponds to the outer diameter of the inner cable conductor 5.
  • the outer diameter of the contact cage 12 is adapted to the inner diameter of the contact part 10 and in particular to the inner diameter of the contact springs 11.
  • the contact cage 12 may be composed of a plurality of segments. In this case, the segments of the contact cage 12 are held together by means of a circumferential, annular spring 13.
  • the contact cage 12 or its segments and, if present, the spring 13 are made of an electrically conductive material.
  • the cable insulation 7 is first removed from the cable K.
  • the distance of the cable insulation 7 is made such that the cable insulation 7 extends into the interior of the insulating body 4, when the cable K is inserted into the insulating body 4.
  • the main insulation 6 of the cable K is removed such that the cable inner conductor 5 is inserted into the contact system 3 or can be inserted.
  • the contact cage 12 is optionally attached with the aid of the spring 13 on the free end of the cable inner conductor 5.
  • the cable inner conductor 5 together with the attached contact cage 12 is then inserted into the interior of the insulating body 4.
  • the cable inner conductor 5 is inserted with the attached contact cage 12 in the interior of the contact part 10 and inserted between the springs 11 in the contact system 3.
  • a conductive connection is formed between the conductor L and the cable inner conductor 5 of the cable K.
  • the cable inner conductor 5 is within the contact system 3 and thus fixed within the cable connection part 1 in the radial direction.
  • the contact cage 12 has an L-shaped configuration in cross-section. In this case, the outwardly projecting part of the contact cage 12 constitutes a further fixation of the contact inner conductor 5 within the contact system 3 in the axial direction.
  • the contact cage 12 may further be provided to compensate for differences in the outer diameter of the inner cable conductor 5 and the inner diameter of the contact springs 11. For this purpose, it is on the one hand possible to adapt the width of the contact cage 12 in the radial direction to the outer diameter of the cable inner conductor 5. If the contact cage 12 consists of a plurality of segments, such an adjustment can be made by a different number of segments and their attachment to the free end of the cable inner conductor 5 by means of the spring 13.
  • Another measure for fixing the cable K within the interior of the cable connection part 1 may be, for example, Schlstecken annular insulation spacers on the main insulation 6 and / or the cable insulation 7, whose outer diameter substantially coincides with the inner diameter of the insulating body 4.
  • the described cable termination part 1 is designed to be used for rated operational current, short-circuit current and surge short-circuit current up to the values of 2500 A, 50 kA (3 s) and 125 kA.
  • the cable connection part 1 is so far preferably suitable for the connection of a circuit breaker of a medium voltage switchgear with a medium voltage cable.
  • the voltage in such a medium-voltage switchgear is usually greater than 1 kilovolt and less than or equal to 52 kilovolts.

Landscapes

  • Cable Accessories (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Communication Cables (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

The connector joins a cable (K) to a conductor (L) of the switchgear. The inner conductor (5) of the cable is inserted into a contact system (3), in which the cable is fixed in radial and axial directions. The contact system includes a contact piece with contact springs. A contact retainer is attachable to the free end of the inner conductor of the cable. <??>An Independent claim is also included for medium voltage switchgear.

Description

Die Erfindung geht aus von einem Kabelanschlussteil für eine Mittelspannungsschaltanlage, mit dem ein Leiter der Mittelspannungsschaltanlage mit einem Kabel verbunden werden kann. Dokument FR-A-2 774 814 offenbart einem Kabelanschlussteil gemäß dem Obergriff des Anspruchs 1.The invention is based on a cable connection part for a medium-voltage switchgear, with which a conductor of the medium-voltage switchgear can be connected to a cable. Document FR-A-2 774 814 discloses a cable connector according to the preamble of claim 1.

Derartige Kabelanschlussteile werden bei bekannten Mittelspannungsschaltanlagen mit Hilfe von Schraubverbindungen realisiert. Dies stellt einen erheblichen Montageaufwand dar. Ebenfalls bringen derartige Schraubverbindungen meist einen erheblichen Isolationsaufwand mit sich. So sind bei Mittelspannungsschaltanlagen oft aufwendige Phasentrennwände oder dergleichen zur Isolation derartiger bekannter Kabelanschlussteile erforderlich.Such cable connection parts are realized in known medium voltage switchgear by means of screw. This represents a considerable installation effort. Also bring such screw usually a considerable Isolation effort with it. For medium-voltage switchgear often expensive phase separation walls or the like for the isolation of such known cable connection parts are required.

Aufgabe der Erfindung ist es, ein Kabelanschlussteil zu schaffen, das weniger Montageaufwand und weniger Isolationsaufwand erfordert.The object of the invention is to provide a cable connection part, which requires less installation effort and less isolation effort.

Diese Aufgabe wird durch einen Kabelanschlussteil gemäß Anspruch 1 oder durch eine Mittelspannungsschaltanlage gemäß Anspruch 8 gelöst.This object is achieved by a cable connection part according to claim 1 or by a medium-voltage switchgear according to claim 8.

Die Erfindung sieht somit keine Schraubverbindungen mehr vor. Stattdessen ist erfindungsgemäß ein Kontaktsystem vorhanden, in das der Kabelinnenleiter des mit dem Leiter zu verbindenden Kabels einsteckbar ist. Das Kontaksystem ist dabei derart ausgebildet, dass das Kabel in radialer und in axialer Richtung fixiert ist.The invention thus provides no more screw. Instead, according to the invention, there is a contact system in which the cable inner conductor of the cable to be connected to the conductor can be inserted. The contact system is designed such that the cable is fixed in the radial and in the axial direction.

Auf diese Weise wird eine erhebliche Reduzierung des Montageaufwands erreicht. Bei der Erfindung ist es ausreichend, das mit dem Leiter zu verbindende Kabel in das Kontaktsystem des Kabelanschlussteils einzustecken. Allein dadurch wird die radiale und axiale Fixierung des Kabels innerhalb des Kabelanschlussteils erreicht. Weitere Maßnahmen sind nicht erforderlich.In this way, a significant reduction of the installation effort is achieved. In the invention, it is sufficient to connect the cable to be connected to the conductor in the Insert contact system of the cable connection part. This alone achieves the radial and axial fixation of the cable within the cable connection part. Further measures are not required.

Durch die Vermeidung von Schraubverbindungen wird bei der Erfindung die Möglichkeit eröffnet, das Kontaktsystem des Kabelanschlussteils in einfacher Weise innerhalb eines Isolierkörpers unterzubringen. Damit sind die stromführenden Bauteile innerhalb des Isolierkörpers angeordnet, so dass eine weitere Isolierung beispielsweise mit Hilfe von Phasentrennwänden oder dergleichen nicht mehr erforderlich ist.By avoiding screw connections, the invention opens up the possibility of accommodating the contact system of the cable connection part in a simple manner within an insulating body. Thus, the current-carrying components are arranged within the insulating body, so that further insulation, for example by means of phase barriers or the like is no longer required.

Besonders vorteilhaft ist es, in bzw. an den Isolierkörper eine Potentialsteuerung und/oder einen kapazitiven Leitbelag einzugießen bzw. anzugießen. Damit wird bereits durch den Isolierkörper ohne weiteren Aufwand eine Potentialsteuerung ermöglicht. Ebenfalls ist es möglich, mit Hilfe des kapazitiven Leitbelags ein zusätzliches Prüfsystem zur Spannungsanzeige anzukoppeln.It is particularly advantageous to pour or apply a potential control and / or a capacitive conductive coating in or on the insulating body. This allows a potential control already by the insulator without further effort. It is also possible to couple with the help of the capacitive Leitbelags an additional test system for voltage display.

Bei einer vorteilhaften Weiterbildung der Erfindung weist das Kontaktsystem ein Kontaktteil mit darin befindlichen Kontaktfedern auf, wobei ein Kontaktkäfig auf das freie Ende des Kabelinnenleiters aufsteckbar ist und wobei der Kabelinnenleiter mit dem Kontaktkäfig zwischen die Kontaktfedern des Kontaktsystems einsteckbar ist.In an advantageous embodiment of the invention, the contact system on a contact part with therein contact springs, wherein a contact cage on the free End of the cable inner conductor can be plugged and wherein the cable inner conductor with the contact cage between the contact springs of the contact system can be inserted.

Der Kontaktkäfig bildet damit mit den Kontaktfedern eine Verbindung, mit der die radiale und die axiale Fixierung des Kabelinnenleiters innerhalb des Kontaktsystems erreicht wird.The contact cage thus forms a connection with the contact springs, with which the radial and axial fixation of the cable inner conductor within the contact system is achieved.

Dabei ist es besonders vorteilhaft, wenn der Kontaktkäfig ein nach außen abstehendes Teil aufweist. Dieses Teil tritt dann derart in einen Wirkkontakt mit den Kontaktfedern, dass insbesondere die axiale Fixierung des Kabelinnenleiters innerhalb des Kontaktsystems weiter verbessert wird.It is particularly advantageous if the contact cage has an outwardly projecting part. This part then comes into operative contact with the contact springs in such a way that, in particular, the axial fixation of the cable inner conductor within the contact system is further improved.

In einer vorteilhaften Ausgestaltung der Erfindung weist der Kontaktkäfig eine Mehrzahl von Segmenten auf, die mit Hilfe einer umlaufenden Feder zusammengehalten werden können und damit auf den Kabelinnenleiter aufsteckbar sind. Mit Hilfe dieser Aufteilung des Kontaktkäfigs in eine Mehrzahl von Segmenten ist es möglich, den Kontaktkäfig ohne größeren Aufwand auch für unterschiedliche Außendurchmesser des Kabelinnenleiters zu verwenden. In diesen Fällen ist es ausreichend, eine jeweils entsprechende Anzahl von Segmenten vorzusehen und mit Hilfe der umlaufenden Feder zusammenzuhalten und auf den Kabelinnenleiter aufzustecken.In an advantageous embodiment of the invention, the contact cage on a plurality of segments, which can be held together by means of a rotating spring and thus can be plugged onto the cable inner conductor. With the help of this division of the contact cage in a plurality of segments, it is possible to use the contact cage without much effort for different outer diameter of the cable inner conductor. In these cases, it is sufficient one each Provide appropriate number of segments and hold together with the help of the rotating spring and aufzustecken on the cable inner conductor.

Weitere Merkmale, Anwendungsmöglichkeiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen der Erfindung, die in den Figuren der Zeichnung dargestellt sind. Dabei bilden alle beschriebenen oder dargestellten Merkmale für sich oder in beliebiger Kombination den Gegenstand der Erfindung, unabhängig von ihrer Zusammenfassung in den Patentansprüchen oder deren Rückbeziehung sowie unabhängig von ihrer Formulierung bzw. Darstellung in der Beschreibung bzw. in der Zeichnung.

Figur 1
zeigt einen schematischen Querschnitt eines Ausführungsbeispiels eines erfindungsgemäßen Kabelanschlussteils; und
Figur 2
zeigt einen schematischen Querschnitt eines Kontaktsystems des Kabelanschlussteils der Figur 1.
Other features, applications and advantages of the invention will become apparent from the following description of embodiments of the invention, which are illustrated in the figures of the drawing. All described or illustrated features, alone or in any combination form the subject matter of the invention, regardless of their summary in the claims or their dependency and regardless of their formulation or representation in the description or in the drawing.
FIG. 1
shows a schematic cross section of an embodiment of a cable connection part according to the invention; and
FIG. 2
shows a schematic cross section of a contact system of the cable connection part of Figure 1.

In der Figur 1 ist ein Kabelanschlussteil 1 dargestellt, mit dem ein Leiter L mit einem Kabel K verbunden werden kann.FIG. 1 shows a cable connection part 1 with which a conductor L is connected to a cable K. can.

Das Kabelanschlussteil 1 ist im Wesentlichen rotationssymmetrisch ausgebildet. Das Kabelanschlussteil 1 weist einen Festkontakt 2 auf, der mit dem Leiter L fest verbunden, beispielsweise verschweißt ist. Mit dem Festkontakt 2 ist ein Kontaktsystem 3 fest verbunden, das im Zusammenhang mit der Figur 2 noch näher erläutert werden wird.The cable connection part 1 is formed substantially rotationally symmetrical. The cable connection part 1 has a fixed contact 2, which is firmly connected to the conductor L, for example, welded. With the fixed contact 2, a contact system 3 is firmly connected, which will be explained in more detail in connection with the figure 2.

Der Festkontakt 2 und das Kontaktsystem 3 sind in einen Isolierkörper 4 eingegossen. Der Isolierkörper kann beispielsweise aus Silikon oder EPDM (Ethylen-Propylen-Dichtungsmaterial) bestehen. Der Isolierkörper 4 ist topfförmig ausgebildet, was in der Figur 1 mit Hilfe der gestrichelten Linie angedeutet sein soll. In den Innenraum des Isolierkörpers 4 kann das Kabel K eingeführt werden. Das Kabel K besteht dabei aus einem Kabelinnenleiter 5, einer darüber angeordneten Hauptisolierung 6 und einer wiederum darüber angeordneten Kabelisolierung 7.The fixed contact 2 and the contact system 3 are cast in an insulating body 4. The insulating body may for example consist of silicone or EPDM (ethylene-propylene sealing material). The insulating body 4 is cup-shaped, which should be indicated in the figure 1 with the aid of the dashed line. In the interior of the insulating 4, the cable K can be introduced. The cable K consists of a cable inner conductor 5, a main insulation 6 arranged above it and a cable insulation 7 arranged again above it.

In oder an dem Isolierkörper 4 sind weiterhin ein oder mehrere Potentialsteuerungen 8 sowie ein oder mehrere kapazitive Leitbeläge 9 ein- oder angegossen. Über dem bzw. über die kapazitiven Leitbeläge 9 kann das Kabelanschlussteil 1 über eine Kapazität nach Erde geschaltet werden. An die Kapazität kann ein Spannungsprüfsystem oder ein Spannungsanzeigesystem angeschlossen werden.In or on the insulating body 4, one or more potential controls 8 and one or more capacitive conductive linings 9 are further cast or cast. Over or over the capacitive Leitbeläge 9, the Kabelanschlussteil 1 are connected via a capacitance to ground. A voltage test system or voltage indication system can be connected to the capacitance.

Das Kabelanschlussteil 1 kann mehrpolig ausgeführt sein. In diesem Fall können mehrere, insbesondere bis zu vier Kabel pro Phase vorhanden sein.The cable connection part 1 can be designed multipolar. In this case, several, in particular up to four cables per phase may be present.

In der Figur 2 ist das Kontaktsystem 3 detaillierter dargestellt. So weist das Kontaktsystem 3 ein Kontaktteil 10 auf, das mit dem Festkontakt 2 fest verbunden, beispielsweise verschweißt ist. Das Kontaktteil 10 ist topfförmig ausgebildet und besteht aus einem elektrisch leitfähigen Material.In the figure 2, the contact system 3 is shown in more detail. Thus, the contact system 3, a contact part 10 which is fixedly connected to the fixed contact 2, for example, welded. The contact part 10 is cup-shaped and consists of an electrically conductive material.

Im Innenraum des Kontaktteils 10, und zwar an der umlaufenden Innenwand des Kontaktteils 10, sind Kontaktfedern 11 angeordnet. Es befinden sich eine Mehrzahl derartiger Kontaktfedern 11 entlang des Umfangs des Kontaktteils 10. Die Kontaktfedern 11 sind aus einem elektrisch leitfähigen Material hergestellt. Die Kontaktfedern 11 können mit dem Kontaktteil 10 fest verbunden, insbesondere verschweißt sein.In the interior of the contact part 10, on the circumferential inner wall of the contact part 10, contact springs 11 are arranged. There are a plurality of such contact springs 11 along the circumference of the contact part 10. The contact springs 11 are made of an electrically conductive material. The contact springs 11 can be firmly connected to the contact part 10, in particular welded.

In der Figur 2 ist der Kabelinnenleiter 5 vergrößert dargestellt. Auf das freie Ende des Kabelinnenleiters 5 ist ein ringförmiger Kontaktkäfig 12 aufgesteckt. Der Innendurchmesser des Kontaktkäfigs 12 entspricht im Wesentlichen dem Außendurchmesser des Kabelinnenleiters 5. Der Außendurchmesser des Kontaktkäfigs 12 ist an den Innendurchmesser des Kontaktteils 10 und insbesondere an die Innendurchmesser der Kontaktfedern 11 angepasst. Der Kontaktkäfig 12 kann aus einer Mehrzahl von Segmenten zusammengesetzt sein. In diesem Fall werden die Segmente des Kontaktkäfigs 12 mit Hilfe einer umlaufenden, ringförmigen Feder 13 zusammengehalten.In the figure 2, the cable inner conductor 5 is shown enlarged. On the free end of the cable inner conductor 5, an annular contact cage 12 is attached. The inner diameter of the contact cage 12 substantially corresponds to the outer diameter of the inner cable conductor 5. The outer diameter of the contact cage 12 is adapted to the inner diameter of the contact part 10 and in particular to the inner diameter of the contact springs 11. The contact cage 12 may be composed of a plurality of segments. In this case, the segments of the contact cage 12 are held together by means of a circumferential, annular spring 13.

Der Kontaktkäfig 12 bzw. dessen Segmente und, sofern vorhanden, die Feder 13 sind aus einem elektrisch leitfähigem Material hergestellt.The contact cage 12 or its segments and, if present, the spring 13 are made of an electrically conductive material.

Zur Verbindung des Leiters L mit dem Kabel K wird zuerst die Kabelisolierung 7 von dem Kabel K entfernt. Die Entfernung der Kabelisolierung 7 wird dabei derart vorgenommen, dass die Kabelisolierung 7 in den Innenraum des Isolierkörpers 4 hineinreicht, wenn das Kabel K in den Isolierkörper 4 eingeführt ist. Weiterhin wird die Hauptisolierung 6 des Kabels K derart entfernt, dass der Kabelinnenleiter 5 in das Kontaktsystem 3 eingeführt bzw. eingesteckt werden kann.To connect the conductor L to the cable K, the cable insulation 7 is first removed from the cable K. The distance of the cable insulation 7 is made such that the cable insulation 7 extends into the interior of the insulating body 4, when the cable K is inserted into the insulating body 4. Furthermore, the main insulation 6 of the cable K is removed such that the cable inner conductor 5 is inserted into the contact system 3 or can be inserted.

Daraufhin wird der Kontaktkäfig 12 ggf. unter Zuhilfenahme der Feder 13 auf das freie Ende des Kabelinnenleiters 5 aufgesteckt. Der Kabelinnenleiter 5 zusammen mit dem aufgesteckten Kontaktkäfig 12 wird dann in den Innenraum des Isolierkörpers 4 eingeführt. Schließlich wird der Kabelinnenleiter 5 mit dem aufgesteckten Kontaktkäfig 12 in den Innenraum des Kontaktteils 10 eingeführt und zwischen die Federn 11 in das Kontaktsystem 3 eingesteckt.Then, the contact cage 12 is optionally attached with the aid of the spring 13 on the free end of the cable inner conductor 5. The cable inner conductor 5 together with the attached contact cage 12 is then inserted into the interior of the insulating body 4. Finally, the cable inner conductor 5 is inserted with the attached contact cage 12 in the interior of the contact part 10 and inserted between the springs 11 in the contact system 3.

Über die elektrisch leitfähigen Bauteile 2, 10, 11, 12 und ggf. 13 entsteht eine leitfähige Verbindung zwischen dem Leiter L und dem Kabelinnenleiter 5 des Kabels K. Mit Hilfe der Federn 11 des Kontaktsystems 3 ist der Kabelinnenleiter 5 innerhalb des Kontaktsystems 3 und damit innerhalb des Kabelanschlussteils 1 in radialer Richtung fixiert. In axialer Richtung ist der Kabelinnenleiter 5 aufgrund der Reibungskräfte an den Kontaktfedern 11 fixiert. Zusätzlich ist es möglich, dass der Kontaktkäfig 12 im Querschnitt eine L-förmige Ausbildung aufweist. In diesem Fall stellt das nach außen abstehende Teil des Kontaktkäfigs 12 eine weitere Fixierung des Kontaktinnenleiters 5 innerhalb des Kontaktsystems 3 in axialer Richtung dar.Via the electrically conductive components 2, 10, 11, 12 and possibly 13, a conductive connection is formed between the conductor L and the cable inner conductor 5 of the cable K. With the aid of the springs 11 of the contact system 3, the cable inner conductor 5 is within the contact system 3 and thus fixed within the cable connection part 1 in the radial direction. In the axial direction of the cable inner conductor 5 is fixed due to the friction forces on the contact springs 11. In addition, it is possible that the contact cage 12 has an L-shaped configuration in cross-section. In this case, the outwardly projecting part of the contact cage 12 constitutes a further fixation of the contact inner conductor 5 within the contact system 3 in the axial direction.

Zur weiteren Aufnahme axialer Kräfte ist es möglich, das Kabel K mit Hilfe eines Kabeleisens zu befestigen.For further absorption of axial forces, it is possible to secure the cable K by means of a cable iron.

Der Kontaktkäfig 12 kann weiterhin dazu vorgesehen sein, Unterschiede des Außendurchmessers des Kabelinnenleiters 5 und des Innendurchmessers der Kontaktfedern 11 auszugleichen. Hierzu ist es einerseits möglich, die Breite des Kontaktkäfigs 12 in radialer Richtung an den Außendurchmesser des Kabelinnenleiters 5 anzupassen. Besteht der Kontaktkäfig 12 aus einer Mehrzahl von Segmenten, so kann eine derartige Anpassung durch eine unterschiedliche Anzahl von Segmenten und deren Befestigung auf dem freien Ende des Kabelinnenleiters 5 mit Hilfe der Feder 13 vorgenommen werden.The contact cage 12 may further be provided to compensate for differences in the outer diameter of the inner cable conductor 5 and the inner diameter of the contact springs 11. For this purpose, it is on the one hand possible to adapt the width of the contact cage 12 in the radial direction to the outer diameter of the cable inner conductor 5. If the contact cage 12 consists of a plurality of segments, such an adjustment can be made by a different number of segments and their attachment to the free end of the cable inner conductor 5 by means of the spring 13.

Eine weitere Maßnahme zur Fixierung des Kabels K innerhalb des Innenraums des Kabelanschlussteils 1 kann darin bestehen, beispielsweise ringförmige Isolationszwischenstücke auf die Hauptisolierung 6 und/oder die Kabelisolierung 7 aufzustecken, deren Außendurchmesser im Wesentlichen mit dem Innendurchmesser des Isolierkörpers 4 übereinstimmt.Another measure for fixing the cable K within the interior of the cable connection part 1 may be, for example, aufzustecken annular insulation spacers on the main insulation 6 and / or the cable insulation 7, whose outer diameter substantially coincides with the inner diameter of the insulating body 4.

Zum Lösen des Kabels K aus dem Kabelanschlussteil 1 ist es erforderlich, eine axiale Kraft aufzubringen, die größer ist als die von den Kontaktfedern 11 über den Kontaktkäfig 12 auf den Kabelinnenleiter 5 einwirkende Haltekraft. Ansonsten sind jedoch keinerlei Werkzeuge oder dergleichen zum Trennen der elektrischen Verbindung zwischen dem Leiter L und dem Kabel K erforderlich.To release the cable K from the cable connection part 1, it is necessary to apply an axial force which is greater is as the force acting on the cable inner conductor 5 by the contact springs 11 via the contact cage 12 holding force. Otherwise, however, no tools or the like for disconnecting the electrical connection between the conductor L and the cable K are required.

Das beschriebene Kabelanschlussteil 1 ist derart ausgelegt, dass es für einen Bemessungsbetriebsstrom, einen Kurzschlussstrom und einen Stoßkurzschlussstrom bis zu den Werten von 2500 A, 50 kA (3 s) und 125 kA benutzt werden kann. Das Kabelanschlussteil 1 ist insoweit vorzugsweise für die Verbindung eines Leistungsschalters einer Mittelspannungsschaltanlage mit einem Mittelspannungskabel geeignet. Die Spannung in einer derartigen Mittelspannungsschaltanlage ist dabei üblicherweise größer als 1 Kilovolt und kleiner oder gleich 52 Kilovolt.The described cable termination part 1 is designed to be used for rated operational current, short-circuit current and surge short-circuit current up to the values of 2500 A, 50 kA (3 s) and 125 kA. The cable connection part 1 is so far preferably suitable for the connection of a circuit breaker of a medium voltage switchgear with a medium voltage cable. The voltage in such a medium-voltage switchgear is usually greater than 1 kilovolt and less than or equal to 52 kilovolts.

Claims (8)

  1. Cable connector (1) for a medium-voltage switchgear, by means of which a conductor (L) of the medium-voltage switchgear can be connected to a cable (K), characterized in that the conductor (L) is connected to a contact system (3), in that the contact system (3) has a contact part (10) with contact springs (11) present therein, in that a contact cage (12) can be directly pushed onto the free end of an inner conductor (5) of the cable (K), in that the inner conductor (5) of the cable can be inserted with the contact cage (12) between the contact spring (11) of the contact system (3), and in that the cable (K) with the contact cage (12) is fixed in the assembled state in the contact system (10) in the radial and in the axial direction.
  2. Cable connector (1) according to Claim 1, characterized in that a plurality of contact springs (11) is arranged at the circumference of the inner wall of the pot-like contact part (10).
  3. Cable connector (1) according to either of Claims 1 and 2, characterized in that the contact cage (12) has a plurality of segments which can be held together with the aid of an all-round spring (13) and can thus be pushed onto the inner conductor (5) of the cable.
  4. Cable connector (1) according to any of Claims 1 to 3, characterized in that the contact cage (12) has an outward-projecting part.
  5. Cable connector (1) according to any of the preceding Claims, characterized in that an insulating body (4) is provided, in which the contact system (3) is housed and which surrounds the cable (K) inserted into the contact system (3).
  6. Cable connector (1) according to Claim 5, characterized in that the insulating body (4) is provided with a potential control (8) and/or a capacitive conductive coating (9).
  7. Cable connector (1) according to any of the preceding Claims, characterized in that the current-carrying components are designed for a rated operating current of 2500 A, a short-circuit current of 50 kA in 3 seconds and a maximum asymmetric short-circuit current of 125 kA.
  8. Medium-voltage switchgear, characterized by a cable connector (1) according to any of the preceding Claims.
EP02018192A 2001-10-20 2002-08-20 Connector for medium-voltage distribution system Expired - Lifetime EP1304772B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10151884A DE10151884A1 (en) 2001-10-20 2001-10-20 Cable connector for a medium voltage switchgear
DE10151884 2001-10-20

Publications (3)

Publication Number Publication Date
EP1304772A2 EP1304772A2 (en) 2003-04-23
EP1304772A3 EP1304772A3 (en) 2004-01-02
EP1304772B1 true EP1304772B1 (en) 2006-03-08

Family

ID=7703194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02018192A Expired - Lifetime EP1304772B1 (en) 2001-10-20 2002-08-20 Connector for medium-voltage distribution system

Country Status (5)

Country Link
EP (1) EP1304772B1 (en)
AT (1) ATE320093T1 (en)
DE (2) DE10151884A1 (en)
ES (1) ES2259060T3 (en)
PT (1) PT1304772E (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2263060C3 (en) * 1972-12-22 1975-12-11 Kathrein-Werke Kg, 8200 Rosenheim Adapter sleeves
US3912352A (en) * 1973-04-09 1975-10-14 Joseph D Kinnear Rotary electrical coupling
US3867602A (en) * 1973-10-25 1975-02-18 Mc Graw Edison Co Contact cluster for arcing and current carrying means in a circuit breaker
DE3110660C2 (en) * 1981-03-19 1983-07-14 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart Set for the end of a medium or high voltage cable
DE3326386A1 (en) * 1983-07-22 1985-01-31 Kabel- Und Lackdrahtfabriken Gmbh, 6800 Mannheim Prefabricated sleeve body
DE4135390C1 (en) * 1991-10-26 1993-04-01 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart, De Current connecting plug for power supply - has rotatable fixing ring on housing allowing connection to housing of cooperating socket
FR2774814B1 (en) * 1998-02-09 2000-03-31 Telecommunications Sa SNAP-ON CONNECTION DEVICE FOR ELECTRICAL CABLE END

Also Published As

Publication number Publication date
ES2259060T3 (en) 2006-09-16
DE50205992D1 (en) 2006-05-04
DE10151884A1 (en) 2003-04-30
EP1304772A3 (en) 2004-01-02
EP1304772A2 (en) 2003-04-23
PT1304772E (en) 2006-05-31
ATE320093T1 (en) 2006-03-15

Similar Documents

Publication Publication Date Title
DE69207238T2 (en) Connecting device for one or two electrical cables, and method for mounting the device on the end of the cable or cables
DE2614085A1 (en) CABLE CONNECTION
EP1876682B1 (en) Cable plug of a plug-type connection device for medium-voltage and high-voltage technics
WO2015104117A1 (en) Device for fixing an electric line in a plug, plug for an electric line, and electric cable
EP3631820B1 (en) Assembly kit for a feedthrough
DE102018201160A1 (en) High voltage bushing, electrical device with high voltage bushing and method of manufacturing the electrical device
EP1304772B1 (en) Connector for medium-voltage distribution system
DE4135391C1 (en) Cable connector for medium high voltage and high current - has socket with cup-shaped contact element, and cylindrical insulating housing covering inserted cable
EP0254226B1 (en) Plug and socket combination for the connection of electrical lamps and appliances
EP1383142B1 (en) Electric pluggable device, in particular an over-voltage arrester
DE2410625A1 (en) HV cable entry gland for sealed equipment - has hollow insulated cylinder with coil spring exerting force against bush on cable plug
DE3886916T2 (en) Electrical cable end connector for the electrical connection of single-core cables with one connection of an installation.
DE4135390C1 (en) Current connecting plug for power supply - has rotatable fixing ring on housing allowing connection to housing of cooperating socket
AT237709B (en) Cable termination and method of making one
DE3224743C2 (en)
WO2006084401A1 (en) Switch terminal
DE2235184C3 (en) Grounding rod
WO2023208463A1 (en) Method for producing an electrical connection, and electrical connection
EP0798757A2 (en) Connection device with a fuse, for a compact transformer station
DE69822688T2 (en) Potential tax cap
DE19938303C2 (en) Device for connecting in particular tubular electrical conductors of an energy transmission system
DE3743268C2 (en)
DE2922836C3 (en) Device for connecting conductors of a medium-voltage or high-voltage power supply network and for isolating the connection point
DE2456471C3 (en) Transition socket
DE3511194A1 (en) FLIGHT WEATHER PROOF CONNECTOR FOR POWER CABLES

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7H 01R 13/53 B

Ipc: 7H 01R 13/187 A

17P Request for examination filed

Effective date: 20040225

17Q First examination report despatched

Effective date: 20040415

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

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

Ref country code: SK

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

Effective date: 20060308

Ref country code: FI

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

Effective date: 20060308

Ref country code: IE

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

Effective date: 20060308

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

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

Owner name: AREVA T&D SA

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

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

Effective date: 20060327

REF Corresponds to:

Ref document number: 50205992

Country of ref document: DE

Date of ref document: 20060504

Kind code of ref document: P

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Effective date: 20060330

Ref country code: CH

Ref legal event code: NV

Representative=s name: MICHELI & CIE INGENIEURS-CONSEILS

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: AREVA T&D SA

Effective date: 20060322

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

Ref country code: DK

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

Effective date: 20060608

Ref country code: BG

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

Effective date: 20060608

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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

Ref country code: MC

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

Effective date: 20060831

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2259060

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

26N No opposition filed

Effective date: 20061211

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

Ref country code: GR

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

Effective date: 20060609

Ref country code: CZ

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

Effective date: 20060308

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

Ref country code: EE

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

Effective date: 20060308

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

Ref country code: TR

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

Effective date: 20060308

Ref country code: LU

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

Effective date: 20060820

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

Ref country code: CY

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

Effective date: 20060308

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

Ref country code: AT

Payment date: 20090820

Year of fee payment: 8

Ref country code: CH

Payment date: 20090824

Year of fee payment: 8

Ref country code: NL

Payment date: 20090820

Year of fee payment: 8

Ref country code: PT

Payment date: 20090820

Year of fee payment: 8

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

Ref country code: BE

Payment date: 20090821

Year of fee payment: 8

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

Ref country code: ES

Payment date: 20100830

Year of fee payment: 9

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

Ref country code: FR

Payment date: 20100901

Year of fee payment: 9

Ref country code: IT

Payment date: 20100825

Year of fee payment: 9

Ref country code: SE

Payment date: 20100823

Year of fee payment: 9

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

Ref country code: GB

Payment date: 20100729

Year of fee payment: 9

BERE Be: lapsed

Owner name: *ALSTOM

Effective date: 20100831

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

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

Effective date: 20110221

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20110301

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: CH

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

Effective date: 20100831

Ref country code: LI

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

Effective date: 20100831

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

Ref country code: PT

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

Effective date: 20110221

Ref country code: AT

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

Effective date: 20100820

Ref country code: NL

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

Effective date: 20110301

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

Ref country code: BE

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

Effective date: 20100831

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 50205992

Country of ref document: DE

Effective date: 20110728

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50205992

Country of ref document: DE

Representative=s name: DREISS PATENTANWAELTE, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50205992

Country of ref document: DE

Owner name: SCHNEIDER ELECTRIC ENERGY FRANCE, FR

Free format text: FORMER OWNER: AREVA T&D SA, PARIS, FR

Effective date: 20120116

Ref country code: DE

Ref legal event code: R082

Ref document number: 50205992

Country of ref document: DE

Representative=s name: DREISS PATENTANWAELTE PARTG MBB, DE

Effective date: 20120116

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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

Effective date: 20110820

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120430

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

Ref country code: IT

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

Effective date: 20110820

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

Ref country code: GB

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

Effective date: 20110820

Ref country code: FR

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

Effective date: 20110831

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

Ref country code: SE

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

Effective date: 20110821

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20130605

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

Ref country code: ES

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

Effective date: 20110821

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

Ref country code: DE

Payment date: 20160701

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50205992

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20180301