EP0492127A2 - Bushing for switching devices insulated by pressure gas - Google Patents

Bushing for switching devices insulated by pressure gas Download PDF

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Publication number
EP0492127A2
EP0492127A2 EP91119617A EP91119617A EP0492127A2 EP 0492127 A2 EP0492127 A2 EP 0492127A2 EP 91119617 A EP91119617 A EP 91119617A EP 91119617 A EP91119617 A EP 91119617A EP 0492127 A2 EP0492127 A2 EP 0492127A2
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EP
European Patent Office
Prior art keywords
inner conductor
device connection
connection part
current
adapter
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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
EP91119617A
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German (de)
French (fr)
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EP0492127B1 (en
EP0492127A3 (en
Inventor
Horst Deharde
Rolf Dirks
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Felten and Guilleaume Energietechnik AG
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Felten and Guilleaume Energietechnik AG
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    • 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
    • H01B17/26—Lead-in insulators; Lead-through insulators

Definitions

  • the invention relates to a bushing for pressurized gas-insulated switchgear assemblies according to the preamble of claim 1.
  • Such bushings are used in gas-insulated switchgear gas-tight in the housing walls of these systems. After installing a system, it is necessary to subject the connected cables to a voltage test. It is already known that separate feedthroughs are additionally used for the testing of the cables, which are externally connected to a grounding rail in three phases and represent part of the inner grounding switch through contacts placed inside the system. With this construction, the outer earthing bar can be removed, the internal switch can be switched into the attached contacts inside, and a cable test can be carried out in this switching state. In this context, removing the external earth connection can result in a safety hazard. Otherwise, the arrangement described above is very expensive and the assignment is difficult to recognize.
  • the invention specified in claim 1 is therefore based on the problem of creating an implementation that allows a simple test of the cable connected to the implementation while increasing the security and reducing the parts required for this.
  • standard plugs and end closure fittings should be able to be connected to the bushing without great effort.
  • a lateral adapter is introduced by a slight spatial enlargement of the bushing, the inner conductor of which can be connected in a simple and electrically tight manner to the current-carrying inner conductor of the bushing on the one hand and on the other hand a connection for testing the cable provides.
  • a device connection part 1 is fastened with its fastening flange 2 to a switchgear assembly 17 .
  • a section 4 adjoins the fastening flange 2 and is predominantly cylindrical. In the extension of this section 4 , a conical section 3 is arranged, which serves to connect a plug or a cable set (not shown).
  • a current-carrying inner conductor 5 designed as a lead-through bolt is inserted axially in the device connection part 1 .
  • section 4 there is a lateral opening 6 which serves to accommodate an adapter 7 .
  • This adapter 7 contains an inner conductor 8 which is designed as a threaded stud bolt 12, 13, 14 .
  • an externally threaded part is connected to the shoulder 12 of the threaded stud bolt 13 and on the other hand an internal thread part 14 .
  • the adapter 7 has a bottom 10 with an axial bore 11 , which is designed such that the shoulder 12 of the threaded stud bolt 12, 13, 14 has a firm seat in the ground 10 of the adapter 7 has.
  • the external thread part 13 engages in a threaded blind hole 9 of the current-carrying inner conductor 5
  • the internal thread part 14 which has the same internal diameter as the external diameter of the external thread part 13 , serves to receive an external thread 16 of an insulating plug 15 .
  • the lateral opening 6 of the device connection part 1 has a blind hole-like shape 19 which merges into an axial bore 20 in the region of the extension 12 .
  • the design of the adapter 7 as a hollow cone means that the internal thread part 14 also has an external conical shape 21 which is adapted to the internal cone of the adapter 7 .
  • the cone of the adapter 7 is guided up to the current-carrying inner conductor 5 of the device connection part 1 .
  • a continuous threaded bore 22 is made in the current-carrying inner conductor 5 in order to be able to accommodate the elongated external thread part 13 .
  • a double cone 23 is screwed into the current-carrying conductor 5 as a cable test connection.
  • the double cone 23 consists of silicone rubber and has a shoulder bolt 24 made of electrolytic copper.
  • the shoulder bolt 24 has a threaded part 25 on the side facing the current-carrying inner conductor 5 and a threaded part 26 on the side facing away from the current-carrying inner conductor 5 for receiving a wing nut 27 .
  • the shoulder bolt 24 has a driving ring 28 which is screwed onto the shoulder bolt 24 and is cast by the silicone of the double cone 23 .
  • the opening 6 in the device connection part 1 is closed by a molded part 29 made of insulating material.
  • This molded part 29 is cast in a silicone rubber cone 30 , a driving ring 31 being provided for the silicone part (cast in the molded part 29 ).

Abstract

2.1 In compressed-gas-insulated switching devices, bushings are inserted in a gastight manner into the housing walls of said devices. In order to be able to carry out cable tests of the cables which are connected to the bushings, special measures are necessary in order to be able to carry out measurements on the relevant cables while adhering to the safety regulations. For this purpose, it is known for separate bushings to be used in addition to the cable bushings, which bushings are externally connected in a three-phase manner to an earthing rail and, by means of contacts which are placed in the internal space of the device, represent a part of the inner earthing switch. Using this construction, the outer earthing rail can be removed, and the internally located switch can switch (internally) into the contacts placed there, it being possible to carry out a cable test in this switching state. The removal of the external earth connection results in a safety problem. 2.2 The invention indicates a means by which a cable bushing with a test connection can be simplified and, at the same time, safety can be improved. To this end, an apparatus connecting part (1) is provided between an attachment flange (2) and a conical section (3) with a section (4) which has a lateral opening (6) which extends as far as the live inner conductor (5), it being possible to insert into this opening an adaptor (7) whose inner conductor (8) can be electrically connected to the live inner conductor (5) of the apparatus connecting part (1). 2.3 Such a bushing with a cable test connection can preferably be used for compressed-gas-insulated switching devices. <IMAGE>

Description

Die Erfindung betrifft eine Durchführung für druckgasisolierte Schaltanlagen gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a bushing for pressurized gas-insulated switchgear assemblies according to the preamble of claim 1.

Derartige Durchführungen werden in druckgasisolierten Schaltanlagen gasdicht in den Gehäusewandungen dieser Anlagen eingesetzt. Nach der Installation einer Anlage ist es erforderlich, die angeschlossenen Kabel einer Spannungsprüfung zu unterziehen. Hierbei ist es bereits bekannt, daß für die Prüfung der Kabel gesonderte Durchführungen zusätzlich eingesetzt werden, welche außen mit einer Erdungsschiene dreiphasig verbunden sind und durch im Innenraum der Anlage aufgesetzte Kontakte einen Teil des inneren Erdungsschalters darstellen. Mit diesem Aufbau kann die äußere Erdungsschiene entfernt werden, der innenliegende Schalter in die aufgesetzten Kontakte im Inneren einschalten, wobei in diesem Schaltzustand eine Kabelprüfung erfolgen kann. In diesem Zusammenhang kann durch das Entfernen der äußeren Erdverbindung ein die Sicherheit gefährdeter Zustand entstehen. Im übrigen ist die zuvor beschriebene Anordnung sehr kostenaufwendig und die Zuordnung schlecht erkennbar.Such bushings are used in gas-insulated switchgear gas-tight in the housing walls of these systems. After installing a system, it is necessary to subject the connected cables to a voltage test. It is already known that separate feedthroughs are additionally used for the testing of the cables, which are externally connected to a grounding rail in three phases and represent part of the inner grounding switch through contacts placed inside the system. With this construction, the outer earthing bar can be removed, the internal switch can be switched into the attached contacts inside, and a cable test can be carried out in this switching state. In this context, removing the external earth connection can result in a safety hazard. Otherwise, the arrangement described above is very expensive and the assignment is difficult to recognize.

Der im Anspruch 1 angegebenen Erfindung liegt daher das Problem zugrunde, eine Durchführung zu schaffen, die eine einfache Prüfung des an die Durchführung angeschlossenen Kabels bei gleichzeitiger Erhöhung der Sicherheit und Verminderung der hierfür erforderlichen Teile gestattet. Hierbei sollen handelsübliche Stecker und Endverschlußarmaturen ohne größeren Aufwand an der Durchführung angeschlossen werden können.The invention specified in claim 1 is therefore based on the problem of creating an implementation that allows a simple test of the cable connected to the implementation while increasing the security and reducing the parts required for this. Here, standard plugs and end closure fittings should be able to be connected to the bushing without great effort.

Dieses Problem wird mit den Maßnahmen des Anspruchs 1 gelöst.This problem is solved with the measures of claim 1.

Mit der Erfindung wird im angegebenen Anwendungsfall erreicht, daß durch eine geringe räumliche Vergrößerung der Durchführung ein seitlicher Adapter eingebracht wird, dessen Innenleiter einerseits mit dem stromführenden Innenleiter der Durchführung auf einfache Weise und elektrisch dicht verbunden werden kann und andererseits einen Anschluß für die Prüfung des Kabels vorsieht. Mit der Adapteranordnung an der Durchführung ist nunmehr auch eine eindeutige Zuordnung zum jeweiligen Kabel sichergestellt.With the invention in the specified application it is achieved that a lateral adapter is introduced by a slight spatial enlargement of the bushing, the inner conductor of which can be connected in a simple and electrically tight manner to the current-carrying inner conductor of the bushing on the one hand and on the other hand a connection for testing the cable provides. With the adapter arrangement on the bushing, a clear assignment to the respective cable is now also ensured.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 bis 13 angegeben.Advantageous embodiments of the invention are specified in claims 2 to 13.

Ein Ausführungsbeispiel der Erfindung wird anhand der Figuren 1 bis 4 erläutert. Es zeigen

Fig. 1
die Durchführung mit einem verschlossenen Adapter in Seitenansicht und teilweise im Schnitt
Fig. 2
eine weitere Ausführung der Durchführung mit verschlossenem Adapter, in Seitenansicht und teilweise im Schnitt
Fig. 3
die Durchführung mit einem eingeschraubten Kabelprüfanschluß in Seitenansicht und teilweise im Schnitt
Fig. 4
diese Durchführung mit einem eingeschraubten Verschlußstopfen, in Seitenansicht und teilweise im Schnitt.
An embodiment of the invention is explained with reference to Figures 1 to 4. Show it
Fig. 1
the implementation with a sealed adapter in side view and partly in section
Fig. 2
a further embodiment of the implementation with a closed adapter, in side view and partly in section
Fig. 3
the implementation with a screwed cable test connection in side view and partly in section
Fig. 4
this implementation with a screwed plug, in side view and partly in section.

Nach Fig. 1 ist ein Geräteanschlußteil 1 mit seinem Befestigungsflansch 2 an einer Schaltanlage 17 befestigt. An dem Befestigungsflansch 2 schließt sich ein Abschnitt 4 an, der vorwiegend zylindrisch ausgebildet ist. In Verlängerung dieses Abschnitts 4 ist ein konischer Abschnitt 3 angeordnet, der zum Anschluß eines Steckers oder einer Kabelgarnitur (nicht dargestellt) dient. Ein als Durchführungsbolzen ausgebildeter und stromführender Innenleiter 5 ist axial im Geräteanschlußteil 1 eingesetzt. Im Abschnitt 4 befindet sich eine seitliche öffnung 6, die der Aufnahme eines Adapters 7 dient. Dieser Adapter 7 enthält einen Innenleiter 8, der als Gewindeansatzbolzen 12,13,14 ausgebildet ist. An den Ansatz 12 des Gewindeansatzbolzens schließen sich einerseits ein Außengewindeteil 13 und andererseits ein Innengewindeteil 14 an. Um den Gewindeansatzbolzen 12,13,14 fachgerecht im Adapter 7 unterbringen zu können, besitzt der Adapter 7 einen Boden 10 mit einer axialen Bohrung 11, die so beschaffen ist, daß der Ansatz 12 des Gewindeansatzbolzens 12,13,14 einen festen Sitz im Boden 10 des Adapters 7 hat. Das Außengewindeteil 13 greift in eine Gewindesacklochbohrung 9 des stromführenden Innenleiters 5 ein, während daß Innengewindeteil 14, das den gleichen Innendurchmesser wie den Außendurchmesser des Außengewindeteils 13 aufweist, der Aufnahme eines Außengewindes 16 eines Isolierpfropfens 15 dient. Die seitliche öffnung 6 des Geräteanschlußteils 1 weist eine sacklochartige Form 19 auf, die im Bereich des Ansatzes 12 in eine axiale Bohrung 20 übergeht. Die Gestaltung des Adapters 7 als hohler Konus bringt es mit sich, daß das Innengewindeteil 14 ebenfalls eine an den Innenkonus des Adapters 7 angepaßte außenkonische Form 21 aufweist.1, a device connection part 1 is fastened with its fastening flange 2 to a switchgear assembly 17 . A section 4 adjoins the fastening flange 2 and is predominantly cylindrical. In the extension of this section 4 , a conical section 3 is arranged, which serves to connect a plug or a cable set (not shown). A current-carrying inner conductor 5 designed as a lead-through bolt is inserted axially in the device connection part 1 . In section 4 there is a lateral opening 6 which serves to accommodate an adapter 7 . This adapter 7 contains an inner conductor 8 which is designed as a threaded stud bolt 12, 13, 14 . On the one hand, an externally threaded part is connected to the shoulder 12 of the threaded stud bolt 13 and on the other hand an internal thread part 14 . In order to be able to professionally accommodate the threaded stud bolt 12, 13, 14 in the adapter 7 , the adapter 7 has a bottom 10 with an axial bore 11 , which is designed such that the shoulder 12 of the threaded stud bolt 12, 13, 14 has a firm seat in the ground 10 of the adapter 7 has. The external thread part 13 engages in a threaded blind hole 9 of the current-carrying inner conductor 5 , while the internal thread part 14 , which has the same internal diameter as the external diameter of the external thread part 13 , serves to receive an external thread 16 of an insulating plug 15 . The lateral opening 6 of the device connection part 1 has a blind hole-like shape 19 which merges into an axial bore 20 in the region of the extension 12 . The design of the adapter 7 as a hollow cone means that the internal thread part 14 also has an external conical shape 21 which is adapted to the internal cone of the adapter 7 .

Nach Fig. 2 ist der Konus des Adapters 7 bis an den stromführenden Innenleiter 5 des Geräteanschlußteils 1 geführt. Im stromführenden Innenleiter 5 ist eine durchgehende Gewindebohrung 22 eingebracht, um das verlängerte Außengewindeteil 13 aufnehmen zu können.2, the cone of the adapter 7 is guided up to the current-carrying inner conductor 5 of the device connection part 1 . A continuous threaded bore 22 is made in the current-carrying inner conductor 5 in order to be able to accommodate the elongated external thread part 13 .

Nach Fig. 3 ist ein Doppelkonus 23 als Kabelprüfanschluß in den stromführenden Leiter 5 eingeschraubt. Der Doppelkonus 23 besteht aus Silikonkautschuk und besitzt einen Ansatzbolzen 24 aus Elektrolytkupfer. Der Ansatzbolzen 24 besitzt an der zum stromführenden Innenleiter 5 gewandten Seite ein Gewindeteil 25 und an der vom stromführenden Innenleiter 5 abgewandten Seite ein Gewindeteil 26 zur Aufnahme einer Flügelmutter 27. Der Ansatzbolzen 24 weist einen Mitnahmering 28 auf, der am Ansatzbolzen 24 angedreht und vom Silikon des Doppelkonus 23 umgossen ist.3, a double cone 23 is screwed into the current-carrying conductor 5 as a cable test connection. The double cone 23 consists of silicone rubber and has a shoulder bolt 24 made of electrolytic copper. The shoulder bolt 24 has a threaded part 25 on the side facing the current-carrying inner conductor 5 and a threaded part 26 on the side facing away from the current-carrying inner conductor 5 for receiving a wing nut 27 . The shoulder bolt 24 has a driving ring 28 which is screwed onto the shoulder bolt 24 and is cast by the silicone of the double cone 23 .

Nach Herausnahme des Doppelkonus 23 nach Fig. 3 wird die Öffnung 6 im Geräteanschlußteil 1 durch ein Formteil 29 aus Isolierstoff verschlossen. Dieses Formteil 29 ist in einem Silikonkautschukkonus 30 eingegossen, wobei ein Mitnahmering 31 für das Silikonteil (im Formteil 29 gegossen) vorgesehen ist.After removing the double cone 23 according to FIG. 3, the opening 6 in the device connection part 1 is closed by a molded part 29 made of insulating material. This molded part 29 is cast in a silicone rubber cone 30 , a driving ring 31 being provided for the silicone part (cast in the molded part 29 ).

Claims (13)

Durchführung für druckgasisolierte Schaltanlagen, mit einem in einer Gehäusewand der Schaltanlage befestigbaren Geräteanschlußteil, das mit einem Befestigungsflansch versehen und mit einem konusförmigen Abschnitt abgeschlossen ist, und mit einem stromführenden Innenleiter, der im Geräteanschlußteil axial verlaufend angeordnet ist, dadurch gekennzeichnet, daß das Geräteanschlußteil (1) zwischen dem Befestigungsflansch (2) und dem konusförmigen Abschnitt (3) mit einem Abschnitt (4) versehen ist, der eine seitliche, bis auf den stromführenden Innenleiter (5) reichende öffnung (6) aufweist, und daß in diese öffnung (6) ein Adapter (7) einsetzbar ist, dessen Innenleiter (8) mit dem stromführenden Innenleiter (5) des Geräteanschlußteils (1) elektrisch verbindbar ist.Bushing for pressurized gas-insulated switchgear, with a device connection part that can be fastened in a housing wall of the switchgear, that is provided with a mounting flange and is closed with a conical section, and with a current-carrying inner conductor that is arranged axially in the device connection part, characterized in that the device connection part (1 ) between the fastening flange (2) and the conical section (3) is provided with a section (4) which has a lateral opening (6) extending to the current-carrying inner conductor (5) , and that into this opening (6) an adapter (7) can be used, the inner conductor (8) of which can be electrically connected to the current-carrying inner conductor (5) of the device connection part (1) . Durchführung nach Anspruch 1, dadurch gekennzeichnet, daß der stromführende Innenleiter (5) als Durchführungsbolzen ausgebildet ist, der im Abschnitt (4) des Geräteanschlußteils (1) mit einer Gewindesacklochbohrung (9) versehen ist, deren Achse senkrecht zur Achse des stromführenden Innenleiters (5) verläuft.Bushing according to claim 1, characterized in that the current-carrying inner conductor (5) is designed as a lead-through bolt which is provided in section (4) of the device connection part (1) with a threaded blind hole (9) , the axis of which is perpendicular to the axis of the current-carrying inner conductor (5 ) runs. Durchführung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Adapter (7) als einseitig geschlossener und hohler Konus aus Silikonkautschuk ausgebildet ist, dessen Boden (10) mit einer Bohrung (11) versehen ist, und daß in dem Konus ein als Gewindeansatzbolzen (12,13,14) ausgebildeter Innenleiter eingesetzt ist, dessen Ansatz (12) an der zum stromführenden Innenleiter (5) gewandten Seite mit einem Außengewindeteil (13) und innerhalb des Konus mit einem Innengewindeteil (14) versehen ist.Implementation according to one of claims 1 or 2, characterized in that the adapter (7) is designed as a hollow cone made of silicone rubber which is closed on one side, the bottom (10 ) of which is provided with a bore (11) , and that an as Threaded stud bolt (12, 13, 14) trained inner conductor is used, the shoulder (12) of which is provided on the side facing the current-carrying inner conductor (5) with an external thread part (13) and within the cone with an internal thread part (14) . Durchführung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Adapter (7) mit einem Isolierpfropfen (15) verschließbar ist, der an der zum Gewindeansatzbolzen (12,13,14) gewandten Seite ein zum Innengewinde (14) des Gewindeansatzbolzens (12,13,14) korrespondierendes Außengewinde (16) aufweist.Feedthrough according to one of claims 1 to 3, characterized in that the adapter (7) can be closed with an insulating plug (15) is having on the side facing the threaded stud (12,13,14) a page to the internal thread (14) corresponding of the threaded shoulder bolt (12,13,14) external thread (16). Durchführung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Geräteanschlußteil (1) derart an der Schaltanlage (17) befestigbar ist, daß die seitliche öffnung (6) im Abschnitt (4) in verschiedene Kreiswinkellagen weist.Bushing according to one of claims 1 to 4, characterized in that the device connection part (1) can be fastened to the switchgear (17 ) in such a way that the lateral opening (6) in the section (4) points in different angular positions. Durchführung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Abschnitt (4) mit einer seitlichen Ausstülpung (18) zwecks Verlängerung der Dichtspalte versehen ist.Bushing according to one of claims 1 to 5, characterized in that the section (4) is provided with a lateral protuberance (18) for the purpose of extending the sealing gap. Durchführung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die seitliche öffnung (6) im Abschnitt (4) des Geräteanschlußteils (1) eine dem Adapter (7) angepaßte innenkonische und sacklochartige Form (19) mit axialer Bohrung (20) für den Ansatz (12) des Gewindeansatzbolzens (12,13, 14) aufweist.Bushing according to one of claims 1 to 6, characterized in that the lateral opening (6) in section (4) of the device connection part (1) has an internally conical and blind hole-like shape (19) with an axial bore (20) for the adapter (7) has the approach (12) of the threaded stud bolt (12,13, 14) . Durchführung nach Anspruch 1, dadurch gekennzeichnet, daß die seitliche Öffnung (6) im Abschnitt (4) des Geräteanschlußteils (1) eine dem Adapter (7) angepaßte, bis auf den stromführenden Innenleiter (5) des Geräteanschlußteils (1) reichende, innenkonische Form aufweist, und daß die Gewindebohrung (22) im stromführenden Innenleiter (5) des Geräteanschlußteils (1) durchgehend ist.Bushing according to Claim 1, characterized in that the lateral opening (6) in section (4) of the device connection part (1) has an internal conical shape which is adapted to the adapter (7) and extends to the current-carrying inner conductor (5) of the device connection part (1) and that the threaded bore (22) in the current-carrying inner conductor (5) of the device connection part (1) is continuous. Durchführung nach Anspruch 8, dadurch gekennzeichnet, daß das Innengewindeteil (14) einen zum Innenkonus des Adapters (7) korrespondierenden Außenkonus (21) aufweist.Bushing according to claim 8, characterized in that the internal thread part (14) has an external cone (21) corresponding to the internal cone of the adapter (7) . Durchführung nach Anspruch 1, dadurch gekennzeichnet, daß der Adapter (7) als Doppelkonus (24) ausgebildet ist, in dessen Innerem ein Ansatzbolzen (24) eingesetzt ist, der an beiden Seiten mit je einem Gewindeteil (25,26) versehen ist, von denen das eine Gewindeteil (25) schraubbar mit dem Innengewinde des stromführenden Leiters (5) verbunden ist, und das andere Gewindeteil (26) mit einer Flügelmutter (27) versehen ist, und daß der Ansatzbolzen (25) innerhalb des Doppelkonus (23) durch einen Mitnahmering (28) verstärkt ist, der in den aus Silikonkautschuk bestehenden Doppelkonus (23) eingreift.Implementation according to claim 1, characterized in that the adapter (7) is designed as a double cone (24) , in the interior of which a shoulder bolt (24) is inserted, which is provided on both sides with a threaded part ( 25, 26 ) from which one threaded part (25) is screwably connected to the internal thread of the current-carrying conductor (5) , and the other threaded part (26) is provided with a wing nut (27) , and that the shoulder bolt (25) is reinforced within the double cone (23) by a driving ring (28) which engages in the double cone (23) made of silicone rubber. Durchführung nach Anspruch 10, dadurch gekennzeichnet, daß der Mitnahmering (28) vom Silikonkauschuk des Doppelkonus (23) umgossen ist.Implementation according to claim 10, characterized in that the driving ring (28) is cast around by the silicone rubber of the double cone (23) . Durchführung nach einem der Ansprüche 10 oder 11, dadurch gekennzeichnet, daß die seitliche öffnung (6) des Geräteanschlußteils (1) mit einem Formteil (29) aus Isolierstoff verschließbar ist, das in einem Konus (30) aus Silikonkautschuk eingegossen ist, wobei das Formteil (29) durch einen Mitnahmering (31) verstärkt ist.Bushing according to one of claims 10 or 11, characterized in that the lateral opening (6) of the device connection part (1) can be closed with a molded part (29) made of insulating material, which is cast in a cone (30) made of silicone rubber, the molded part (29) is reinforced by a driving ring (31) . Durchführung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß der stromführende Innenleiter (5) des Geräteanschlußteils (1) in Gießharz eingebettet ist.Bushing according to one of claims 1 to 12, characterized in that the current-carrying inner conductor (5) of the device connection part (1) is embedded in casting resin.
EP91119617A 1990-12-20 1991-11-18 Bushing for switching devices insulated by pressure gas Expired - Lifetime EP0492127B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4040903 1990-12-20
DE4040903A DE4040903A1 (en) 1990-12-20 1990-12-20 PERFORMANCE FOR GAS INSULATED SWITCHGEAR

Publications (3)

Publication Number Publication Date
EP0492127A2 true EP0492127A2 (en) 1992-07-01
EP0492127A3 EP0492127A3 (en) 1993-02-24
EP0492127B1 EP0492127B1 (en) 1995-05-24

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Application Number Title Priority Date Filing Date
EP91119617A Expired - Lifetime EP0492127B1 (en) 1990-12-20 1991-11-18 Bushing for switching devices insulated by pressure gas

Country Status (3)

Country Link
EP (1) EP0492127B1 (en)
DE (2) DE4040903A1 (en)
ES (1) ES2074634T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105810372A (en) * 2016-04-29 2016-07-27 句容华源电器设备有限公司 Insulating plug capable of measuring humidity

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1023807B (en) * 1954-08-31 1958-02-06 Westinghouse Electric Corp Multiple implementation for gas-tight sealed electrical devices and machines
DE1076214B (en) * 1958-11-18 1960-02-25 Liebknecht Transformat Implementation for electrical devices
EP0147979A1 (en) * 1983-12-14 1985-07-10 Raychem Limited High voltage connector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1023807B (en) * 1954-08-31 1958-02-06 Westinghouse Electric Corp Multiple implementation for gas-tight sealed electrical devices and machines
DE1076214B (en) * 1958-11-18 1960-02-25 Liebknecht Transformat Implementation for electrical devices
EP0147979A1 (en) * 1983-12-14 1985-07-10 Raychem Limited High voltage connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105810372A (en) * 2016-04-29 2016-07-27 句容华源电器设备有限公司 Insulating plug capable of measuring humidity

Also Published As

Publication number Publication date
DE59105585D1 (en) 1995-06-29
EP0492127B1 (en) 1995-05-24
EP0492127A3 (en) 1993-02-24
DE4040903A1 (en) 1992-06-25
ES2074634T3 (en) 1995-09-16

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