EP0763840B1 - Metal-clad gas insulated power switch - Google Patents

Metal-clad gas insulated power switch Download PDF

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Publication number
EP0763840B1
EP0763840B1 EP96114388A EP96114388A EP0763840B1 EP 0763840 B1 EP0763840 B1 EP 0763840B1 EP 96114388 A EP96114388 A EP 96114388A EP 96114388 A EP96114388 A EP 96114388A EP 0763840 B1 EP0763840 B1 EP 0763840B1
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EP
European Patent Office
Prior art keywords
contact housing
fixed contact
housing
arrangement
contact
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.)
Revoked
Application number
EP96114388A
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German (de)
French (fr)
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EP0763840A3 (en
EP0763840A2 (en
Inventor
Volker Dr. Rees
Martin Dr. Schumacher
Horst Plettner
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ABB Patent GmbH
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ABB Patent GmbH
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Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0763840A2 publication Critical patent/EP0763840A2/en
Publication of EP0763840A3 publication Critical patent/EP0763840A3/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/64Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/04Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121Load break switches
    • H01H33/122Load break switches both breaker and sectionaliser being enclosed, e.g. in SF6-filled container

Definitions

  • the invention relates to a metal-encapsulated, gas-insulated high-voltage switch according to the preamble of claim 1.
  • the movable contact piece is assigned a piston arrangement with an insulating nozzle, in which the gas pressure is increased during a switch-off operation and supplied to the arc.
  • the actual quenching chamber i.e. H. the area where the arc is extinguished from the rest of the encapsulation area either via an insulating cylinder or separated in that the insulating nozzle in a guide cylinder is guided on the contact housing of the fixed contact piece.
  • the object of the invention is to provide a high-voltage switch of the type mentioned To create a way that also creates a disconnect function.
  • the contact housing can also be in addition to the normal one Switch-off movement are driven so that by actuating the contact housing the same function of a separation section is generated.
  • the switching device which is a high-voltage circuit breaker and has the reference number 10 as a whole, contains a fixed contact piece housing 11 in which a rod-shaped fixed contact piece 12 is arranged; how the fixed contact piece is held within the fixed contact housing 11 is of no importance for the invention.
  • the switching device 10 also has a movable contact piece 13, which is attached to a switching tube 14 and is surrounded by an insulating nozzle 15, which has a section 16 with the smallest diameter, which extends towards the fixed contact piece 12 via a conical region 17 to a section 18 large diameter expanded.
  • the fixed contact piece 12 passes through the section 16 and the movable contact piece 13 in the switched-on state and via channels 19 arranged in the insulating material nozzle 15 is supplied according to the direction of arrow P to the arc 20 which is burning through the section 16 insulating gas, here SF 6 gas, so that the Arc 20 is blown and goes out.
  • the gas flow P can be generated by an additional volume (not shown), possibly using the energy of the arc 20 itself.
  • Such switches are known as so-called blow piston or auto blow switches. However, the invention is not limited to such switches.
  • the movable contact piece 13, the drive tube 14 and the insulating nozzle 15 are in housed a housing 21; additional contact pieces that carry the nominal current are not shown for the sake of clarity.
  • Metal encapsulation 30 housed, which is cylindrical in a single-pole arrangement and if necessary is oval in the case of a multipole arrangement. It is up to his End faces connected by a cover 31 and 32 and in the area of the end faces are, forming a V-shape, leads 33 and 34 transverse to the central axis of the metal encapsulation 30 provided, which are designed as cable terminations and through which Live conductors 35 and 36 are passed.
  • the conductor 35 is movable Contact piece within the contact housing 21 electrically connected;
  • An extension 37 is arranged on the fixed contact housing 11, which is guided by a guide 38 with the interposition of so-called multi-lamella contacts 39 which is electrically conductively connected to the conductor 36.
  • a drive 40 which has a piston-cylinder arrangement 41, the piston rod 42 via a deflection lever arrangement 43 which is mounted in the axis of rotation 44, is connected to the drive rod 14.
  • the connected to the fixed contact housing 11 Extension 37 is by means of a coupling rod 45 with a lever arrangement 46 connected, which is rotatably mounted at 47 and connected to a drive 48 which, like the drive 40, has a piston-cylinder arrangement 49, whose piston rod 50 is connected to the deflection lever arrangement 46.
  • the drive 48 can also be done with a motor spindle assembly because of the movement by the drive 48 is relatively slow compared to the movement that the drive 40 executes, since only a separating movement has to be made.
  • the disconnector movement can also be done by a drive on the same Side is arranged as the drive 40 when to achieve the disconnector movement the contact housing 21 is moved. Then the contact housing 21 must have appropriate Contact elements, the z. B. correspond to the multi-blade contacts 39, related guided displaceably on the conductor 35 and connected to it in an electrically conductive manner his. In this case, a two-position drive would be used as drive 40, which first executes the circuit breaker movement and then connects the disconnector movement.
  • the drive 48 could also be on the same one Be arranged as the drive 40; in this case, the drive 48 would Move contact housing 21.
  • the metal encapsulation 30 is supported on legs 51, 52 on the floor N-N.
  • the 1 is the switch-on position, whereas in FIG. 2 the switch-off position of the switching device 10 is shown, which is illustrated in Fig. 4. you recognizes the insulating nozzle 15 between the contact housing 21 of the movable contact piece and the fixed contact housing 11. In the shown in Fig. 2 and Fig. 4 Position, the arc is blown and extinguished.
  • the contact housing 11 is moved by means of the drive 48 moved in the guide 38 to the right, so that between the free end a distance t is formed between the nozzle 15 and the free end of the housing 11. This 3 is the disconnected position.
  • the electrical switchgear other than the insulating nozzle between the contact housing 21 and the fixed contact housing 11 still has an insulating cylinder, such as it is represented, for example, by the dashed line 51 in FIG. 4, then also the insulating cylinder 51 together with the insulating nozzle 15 in the switch-off direction moves and the fixed contact housing 11 is also separated from the Isolation cylinder separated.
  • the separation distance t is necessary, see FIG. 3.
  • the invention is illustrated using a so-called dead tank switch; Of course The invention can also be used with any other gas-insulated switch become.

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  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Description

Die Erfindung betrifft einen metallgekapselten, gasisolierten Hochspannungsschalter nach dem Oberbegriff des Anspruches 1.The invention relates to a metal-encapsulated, gas-insulated high-voltage switch according to the preamble of claim 1.

Hochspannungsschalter der eingangs genannten Art, bei denen als Isolier- und Löschgas SF6-Gas verwendet wird, besitzen eine feste Kontaktstückanordnung und eine bewegliche Kontaktstückanordnung, die jeweils aus Kontaktstücken für den Nennstrom und Kontaktstücken für die Lichtbogenlöschung zusammengesetzt sind; bei einigen Schaltgeräten ist dem beweglichen Kontaktstück eine Kolbenanordnung mit einer Isolierdüse zugeordnet, in der der Gasdruck während einer Ausschalthandlung erhöht und dem Lichtbogen zugeführt wird.High-voltage switches of the type mentioned, in which SF 6 gas is used as the insulating and quenching gas, have a fixed contact piece arrangement and a movable contact piece arrangement, which are each composed of contact pieces for the nominal current and contact pieces for arc quenching; In some switching devices, the movable contact piece is assigned a piston arrangement with an insulating nozzle, in which the gas pressure is increased during a switch-off operation and supplied to the arc.

Bei gasisolierten Hochspannungsschaltgeräten ist die eigentliche Löschkammer, d. h. der Bereich, in dem der Lichtbogen gelöscht wird, von dem übrigen Bereich der Kapselung entweder über einen Isolierzylinder oder dadurch getrennt, daß die Isolierdüse in einem Führungszylinder an dem Kontaktgehäuse des festen Kontaktstückes geführt ist.In gas-insulated high-voltage switching devices, the actual quenching chamber, i.e. H. the area where the arc is extinguished from the rest of the encapsulation area either via an insulating cylinder or separated in that the insulating nozzle in a guide cylinder is guided on the contact housing of the fixed contact piece.

Weil zwischen dem Gehäuse, welches das bewegliche Kontaktstück umfaßt, und dem Gehäuse, das das feste Kontaktstück enthält, eine mechanische Verbindung, wenn auch über Isolierstoff, besteht, können solche Schaltgeräte nicht als Trennschalter fungieren, da die Gefahr besteht, daß über die Isolierstoffverbindung Kriechströme fließen, was einem Durchschlagen des Schalters entspricht.Because between the housing which comprises the movable contact piece and the Housing that contains the fixed contact piece, a mechanical connection, if such switchgear cannot be used as an isolating switch function because there is a risk that leakage currents through the insulating material connection flow, which corresponds to a breakdown of the switch.

Aufgabe der Erfindung ist es, einen Hochspannungsschalter der eingangs genannten Art zu schaffen, bei dem gleichzeitig auch eine Trennerfunktion geschaffen ist.The object of the invention is to provide a high-voltage switch of the type mentioned To create a way that also creates a disconnect function.

Diese Aufgabe wird erfindungsgemäß gelöst durch die Merkmale des Anspruches 1.This object is achieved by the features of Claim 1.

Wenn die Schaltkammer von einem Isolierstoffzylinder umgeben ist, dann wird die Aufgabe erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 2 gelöst.If the switching chamber is surrounded by an insulating material cylinder, then the task solved according to the invention by the characterizing features of claim 2.

In beiden Fällen kann nicht nur das bewegliche Kontaktstück zusammen mit dem Kontaktgehäuse für das bewegliche Kontaktstück in Ausschaltrichtung bewegt, sondern auch das Festkontaktgehäuse entgegen der Ausschaltrichtung des beweglichen Kontaktstückes, soweit, bis eine Gasstrecke bestimmter Länge zwischen dem Kontaktgehäuse des beweglichen Kontaktstückes und dem Kontaktgehäuse des festen Kontaktstückes erreicht ist.In both cases, not only the movable contact piece together with the contact housing can for the movable contact piece in the switch-off direction, but also the fixed contact housing against the switch-off direction of the movable contact piece, until a gas path of a certain length between the contact housing of the movable contact piece and the contact housing of the fixed contact piece is reached.

In einer anderen Ausgestaltung kann auch das Kontaktgehäuse zusätzlich zu der normalen Ausschaltbewegung angetrieben werden, so daß durch Betätigung des Kontaktgehäuses die gleiche Funktion einer Trennstrecke erzeugt wird.In another embodiment, the contact housing can also be in addition to the normal one Switch-off movement are driven so that by actuating the contact housing the same function of a separation section is generated.

Dabei besteht die Möglichkeit, einen zweiten Antrieb zur Erzielung der Trennfunktion vorzusehen; es besteht auch die Möglichkeit, daß der Antrieb für das bewegliche Kontaktstück bzw. die bewegliche Kontaktanordnung auch das Kontaktgehäuse verschiebt, so daß die Trennfunktion erzielt ist.There is the option of a second drive to achieve the separation function provide; there is also the possibility that the drive for the movable contact piece or the movable contact arrangement also moves the contact housing, so that the separation function is achieved.

Weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung sind den weiteren Unteransprüchen zu entnehmen. Further advantageous refinements and improvements of the invention are the see further subclaims.

Anhand der Zeichnung, in der ein Ausführungsbeispiel schematisch dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen und weitere Vorteile näher erläutert und beschrieben.Using the drawing, in which an exemplary embodiment is shown schematically, the invention and further advantageous refinements and improvements and further advantages explained and described.

Es zeigen:

Fig. 1
eine schematische Darstellung eines Hochspannungsschaltgerätes in Einschaltstellung,
Fig. 2
den Schalter gemäß Fig. 1 in Ausschaltstellung,
Fig. 3
den Schalter gemäß den Fig. 1 und 2 in Trennstellung, und
Fig. 4
eine Schnittansicht durch das Schaltgerät gemäß den Fig. 1 bis 3 in der in Fig. 2 dargestellten Stellung.
Show it:
Fig. 1
1 shows a schematic illustration of a high-voltage switching device in the switched-on position,
Fig. 2
1 in the off position,
Fig. 3
1 and 2 in the disconnected position, and
Fig. 4
a sectional view through the switching device according to FIGS. 1 to 3 in the position shown in Fig. 2.

Es sei zunächst Bezug genommen auf die Fig. 4.Reference is first made to FIG. 4.

Das Schaltgerät, welches ein Hochspannungsleistungsschalter ist und im Gesamten die Bezugsziffer 10 besitzt, enthält ein Festkontaktstückgehäuse 11, in dem ein stangenförmiges festes Kontaktstück 12 angeordnet ist; wie das feste Kontaktstück innerhalb des Festkontaktgehäuses 11 gehaltert ist, hat für die Erfindung keine Bedeutung. Das Schaltgerät 10 besitzt weiterhin ein bewegliches Kontaktstück 13, welches an einem Schaltrohr 14 angebracht und von einer Isolierstoffdüse 15 umgeben ist, die einen Abschnitt 16 mit geringstem Durchmesser aufweist, der sich hin zum festen Kontaktstück 12 über einen konischen Bereich 17 zu einem Abschnitt 18 mit großem Durchmesser erweitert. Das feste Kontaktstück 12 durchgreift in eingeschaltetem Zustand den Abschnitt 16 sowie das bewegliche Kontaktstück 13 und über in der Isolierstoffdüse 15 angeordnete Kanäle 19 wird gemäß Pfeilrichtung P dem durch den Abschnitt 16 hindurch brennenden Lichtbogen 20 Isoliergas, hier SF6-Gas zugeführt, so daß der Lichtbogen 20 beblasen wird und erlischt. Der Gasstrom P kann durch ein Zusatzvolumen (nicht gezeigt) ggf. unter Ausnutzung der Energie des Lichtbogens 20 selbst erzeugt werden. Innerhalb des Kontaktgehäuses 11 befindet sich ein Metallzylinder 11a, der fest mit dem Festkontaktgehäuse 11 verbunden ist und im Einschaltzustand bzw. im Ausschaltzustand (gemäß Fig. 4) die Isolierdüse 15 im Bereich 18 umfaßt und führt. Derartige Schalter sind bekannt als sog. Blaskolben- oder Selbstblasschalter. Die Erfindung ist aber auf solche Schalter nicht begrenzt.The switching device, which is a high-voltage circuit breaker and has the reference number 10 as a whole, contains a fixed contact piece housing 11 in which a rod-shaped fixed contact piece 12 is arranged; how the fixed contact piece is held within the fixed contact housing 11 is of no importance for the invention. The switching device 10 also has a movable contact piece 13, which is attached to a switching tube 14 and is surrounded by an insulating nozzle 15, which has a section 16 with the smallest diameter, which extends towards the fixed contact piece 12 via a conical region 17 to a section 18 large diameter expanded. The fixed contact piece 12 passes through the section 16 and the movable contact piece 13 in the switched-on state and via channels 19 arranged in the insulating material nozzle 15 is supplied according to the direction of arrow P to the arc 20 which is burning through the section 16 insulating gas, here SF 6 gas, so that the Arc 20 is blown and goes out. The gas flow P can be generated by an additional volume (not shown), possibly using the energy of the arc 20 itself. Inside the contact housing 11 there is a metal cylinder 11a, which is firmly connected to the fixed contact housing 11 and, in the switched-on state or in the switched-off state (according to FIG. 4), encloses and guides the insulating nozzle 15 in the region 18. Such switches are known as so-called blow piston or auto blow switches. However, the invention is not limited to such switches.

Das bewegliche Kontaktstück 13, das Antriebsrohr 14 und die Isolierdüse 15 sind in einem Gehäuse 21 untergebracht; zusätzliche Kontaktstücke, die den Nennstrom führen können, sind der Übersichtlichkeit halber nicht dargestellt.The movable contact piece 13, the drive tube 14 and the insulating nozzle 15 are in housed a housing 21; additional contact pieces that carry the nominal current are not shown for the sake of clarity.

Das Schaltgerät 10 gemäß der Fig. 4 ist, wie aus den Fig. 1 bis 3 ersichtlich, in einer Metallkapselung 30 untergebracht, welches bei einer einpoligen Anordnung zylinderförmig und bei einer mehrpoligen Anordnung ggf. oval ausgebildet ist. Es ist an seinen Stirnseiten mittels eines Deckels 31 und 32 verbunden und im Bereich der Stirnseiten sind, eine V-Form bildend, Ausleitungen 33 und 34 quer zur Mittelachse der Metallkapselung 30 vorgesehen, die als Kabelendverschlüsse ausgebildet und durch welche stromführende Leiter 35 und 36 hindurchgeführt sind. Der Leiter 35 ist mit dem beweglichen Kontaktstück innerhalb des Kontaktgehäuses 21 elektrisch leitend verbunden; am Festkontaktgehäuse 11 ist ein Fortsatz 37 angeordnet, der durch eine Führung 38 unter Zwischenfügung sog. Multilamellenkontakten 39 hindurchgeführt ist, die mit dem Leiter 36 elektrisch leitend verbunden ist.4, as can be seen from FIGS. 1 to 3, in one Metal encapsulation 30 housed, which is cylindrical in a single-pole arrangement and if necessary is oval in the case of a multipole arrangement. It is up to his End faces connected by a cover 31 and 32 and in the area of the end faces are, forming a V-shape, leads 33 and 34 transverse to the central axis of the metal encapsulation 30 provided, which are designed as cable terminations and through which Live conductors 35 and 36 are passed. The conductor 35 is movable Contact piece within the contact housing 21 electrically connected; An extension 37 is arranged on the fixed contact housing 11, which is guided by a guide 38 with the interposition of so-called multi-lamella contacts 39 which is electrically conductively connected to the conductor 36.

An der Antriebsstange 14, die aus dem Kontaktgehäuse 21 herausgeführt ist, schließt ein Antrieb 40 an, der eine Kolben-Zylinderanordnung 41 aufweist, dessen Kolbenstange 42 über eine Umlenkhebelanordnung 43, die in der Drehachse 44 gelagert ist, mit der Antriebsstange 14 verbunden ist. Der mit dem Festkontaktgehäuse 11 verbundene Fortsatz 37 ist mittels einer Kupplungsstange 45 mit einer Umlenkhebelanordnung 46 verbunden, die bei 47 drehbar gelagert ist und mit einem Antrieb 48 verbunden ist, der, ebenso wie der Antrieb 40, eine Kolben-Zylinderanordnung 49 besitzt, dessen Kolbenstange 50 mit der Umlenkhebelanordnung 46 verbunden ist. Der Antrieb 48 kann auch mit einer Motor-Spindelanordnung ausgeführt werden, da die Bewegung durch den Antrieb 48 relativ langsam ist im Vergleich zu der Bewegung, die der Antrieb 40 ausführt, da lediglich eine Trennbewegung vorgenommen werden muß. On the drive rod 14, which is led out of the contact housing 21, closes a drive 40, which has a piston-cylinder arrangement 41, the piston rod 42 via a deflection lever arrangement 43 which is mounted in the axis of rotation 44, is connected to the drive rod 14. The connected to the fixed contact housing 11 Extension 37 is by means of a coupling rod 45 with a lever arrangement 46 connected, which is rotatably mounted at 47 and connected to a drive 48 which, like the drive 40, has a piston-cylinder arrangement 49, whose piston rod 50 is connected to the deflection lever arrangement 46. The drive 48 can also be done with a motor spindle assembly because of the movement by the drive 48 is relatively slow compared to the movement that the drive 40 executes, since only a separating movement has to be made.

Die Trennschalterbewegung kann auch durch einen Antrieb erfolgen, der auf der selben Seite angeordnet ist wie der Antrieb 40, wenn zur Erzielung der Trennerbewegung das Kontaktgehäuse 21 bewegt wird. Dann muß das Kontaktgehäuse 21 über entsprechende Kontaktelemente, die z. B. den Multilamellenkontakten 39 entsprechen, bezogen auf den Leiter 35 verschiebbar geführt und mit diesem elektrisch leitend verbunden sein. In diesem Falle wäre als Antrieb 40 ein Zweistellungsantrieb zu verwenden, der zuerst die Leistungsschalterbewegung ausführt und dann die Trennerbewegung anschließt.The disconnector movement can also be done by a drive on the same Side is arranged as the drive 40 when to achieve the disconnector movement the contact housing 21 is moved. Then the contact housing 21 must have appropriate Contact elements, the z. B. correspond to the multi-blade contacts 39, related guided displaceably on the conductor 35 and connected to it in an electrically conductive manner his. In this case, a two-position drive would be used as drive 40, which first executes the circuit breaker movement and then connects the disconnector movement.

Im Falle von zwei getrennten Antrieben könnte der Antrieb 48 auch auf der selben Seite angeordnet sein wie der Antrieb 40; in diesem Falle würde der Antrieb 48 das Kontaktgehäuse 21 bewegen.In the case of two separate drives, the drive 48 could also be on the same one Be arranged as the drive 40; in this case, the drive 48 would Move contact housing 21.

Die Metallkapselung 30 ist auf Beinen 51, 52 auf dem Boden N-N aufgeständert. Die Anordnung gemäß Fig. 1 ist die Einschaltstellung, wogegen in der Fig. 2 die Ausschaltstellung des Schaltgerätes 10 dargestellt ist, die in Fig. 4 verdeutlicht ist. Man erkennt die Isolierdüse 15 zwischen dem Kontaktgehäuse 21 des beweglichen Kontaktstückes und dem Festkontaktgehäuse 11. In der in Fig. 2 bzw. Fig. 4 gezeigten Stellung wird der Lichtbogen beblasen und gelöscht.The metal encapsulation 30 is supported on legs 51, 52 on the floor N-N. The 1 is the switch-on position, whereas in FIG. 2 the switch-off position of the switching device 10 is shown, which is illustrated in Fig. 4. you recognizes the insulating nozzle 15 between the contact housing 21 of the movable contact piece and the fixed contact housing 11. In the shown in Fig. 2 and Fig. 4 Position, the arc is blown and extinguished.

Wenn der Löschvorgang beendet ist, wird das Kontaktgehäuse 11 mittels des Antriebes 48 in der Führung 38 nach rechts verschoben, so daß zwischen dem freien Ende der Düse 15 und dem freien Ende des Gehäuses 11 ein Abstand t gebildet ist. Diese Stellung gemäß Fig. 3 ist die Trennstellung.When the erasing process has ended, the contact housing 11 is moved by means of the drive 48 moved in the guide 38 to the right, so that between the free end a distance t is formed between the nozzle 15 and the free end of the housing 11. This 3 is the disconnected position.

Wenn das elektrische Schaltgerät außer der Isolierstoffdüse zwischen dem Kontaktgehäuse 21 und dem Festkontaktgehäuse 11 noch einen Isolierstoffzylinder besitzt, wie er beispielsweise durch die strichlierte Linie 51 in Fig. 4 dargestellt ist, dann wird auch der Isolierstoffzylinder 51 zusammen mit der Isolierstoffdüse 15 in Ausschaltrichtung bewegt und das Festkontaktgehäuse 11 wird bei der Trennbewegung auch von dem Isolierzylinder getrennt. Notwendig ist die Trennstrecke t, siehe Fig. 3. If the electrical switchgear other than the insulating nozzle between the contact housing 21 and the fixed contact housing 11 still has an insulating cylinder, such as it is represented, for example, by the dashed line 51 in FIG. 4, then also the insulating cylinder 51 together with the insulating nozzle 15 in the switch-off direction moves and the fixed contact housing 11 is also separated from the Isolation cylinder separated. The separation distance t is necessary, see FIG. 3.

Die Erfindung ist anhand eines sog. Dead Tank-Schalters dargestellt; selbstverständlich kann die Erfindung bei jedem anderen gasisolierten Schalter ebenfalls verwendet werden.The invention is illustrated using a so-called dead tank switch; Of course The invention can also be used with any other gas-insulated switch become.

Claims (8)

  1. Metal-encapsulated, gas-insulated high-voltage circuit-breaker, having a fixed contact arrangement (12) which is accommodated in its own fixed contact housing (11), and having a moving contact piece arrangement (13) which is driven by a first drive (40) and is accommodated in a contact housing (21) which is connected to the moving contact piece arrangement (13) or can move with said contact piece arrangement during a switching operation, the contact arrangement possibly having a contact piece for the rated current and for guiding and extinguishing the arc, and means for producing a gas flow being provided in the movable contact housing (21), which means comprise a dielectric nozzle (15) in which the arc burns and is blown, and which is guided in a sealed manner in the fixed contact housing throughout the entire switching operation, characterized in that , the drive is designed in such a manner that during or after completion of the disconnection operation, the fixed contact housing (11) with the fixed contact piece arrangement (12) and the contact housing (21) with the moving contact arrangement (13) are moved away from one another in such a manner that the insulating nozzle (15) is released from its guide in the fixed contact housing (11) and an isolating path can in consequence be achieved between the fixed contact housing and the contact housing with an insulating nozzle for producing a disconnecter function.
  2. Metal-encapsulated, gas-insulated high-voltage circuit-breaker, having a fixed contact arrangement (12) which is accommodated in its own fixed contact housing (11), and having a moving contact piece arrangement (13) which is driven by a first drive (40) and is accommodated in a contact housing (21) which is connected to the moving contact piece arrangement (15) [sic] or can move with said contact piece arrangement during a switching operation, the contact arrangement possibly having a contact piece for the rated current and for guiding and extinguishing the arc, and means for producing a gas flow being provided in the movable contact housing (21), which means comprise a dielectric nozzle (15) in which the arc burns and is blown, and which is guided in a sealed manner in the fixed contact housing (11) throughout the entire switching operation, and having a dielectric cylinder which is provided between the contact housing and the fixed contact housing (11), characterized in that, the drive is designed in such a manner that during or after completion of the disconnection operation, the fixed contact housing (11) with the fixed contact piece arrangement (12) and the contact housing (21) with the moving contact arrangement are moved away from one another, in such a manner that the insulating nozzle (15) is released from its guide in the fixed contact housing (11) and the dielectric cylinder (51) is released from the fixed contact housing and an isolating path can in consequence be achieved between the fixed contact housing and the contact housing with the insulating nozzle and the dielectric cylinder for producing a disconnecter function.
  3. High-voltage circuit-breaker according to one of Claims 1 and 2, characterized in that the second drive (48) is provided which drives the fixed contact housing (11) counter to the disconnection direction of the moving contact piece arrangement (13) and/or drives the contact housing (21) in the disconnection direction of the moving contact piece arrangement (13).
  4. High-voltage circuit-breaker according to one of Claims 1 or 2, characterized in that the drive for the moving contact piece arrangement (13) also moves the contact housing with the moving contact arrangement, the dielectric nozzle and, possibly, the dielectric cylinder into the disconnected position.
  5. High-voltage circuit-breaker according to one of the preceding claims, characterized in that a projection (37) is in each case integrally formed on the fixed contact housing (11) and/or on the contact housing (21), which projection (37) is accommodated in a guide hole (38), which is electrically conductively connected to an associated outgoer conductor (35, 36), and is guided electrically conductively and displaceably therein.
  6. High-voltage circuit-breaker according to Claim 5, characterized in that the electrically conductive connection between the guide hole (38) and the projection (37) is achieved by means of multiple contact pieces (39).
  7. High-voltage circuit-breaker according to one of the preceding claims, characterized in that the drives (40, 48) are arranged on mutually opposite sides of the metal encapsulation (30).
  8. High-voltage circuit-breaker according to one of Claims 1 to 6, characterized in that the drives (40, 48) are arranged at the same end of the metal encapsulation (30).
EP96114388A 1995-09-13 1996-09-09 Metal-clad gas insulated power switch Revoked EP0763840B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19533794A DE19533794A1 (en) 1995-09-13 1995-09-13 Metal-enclosed, gas-insulated high-voltage switch
DE19533794 1995-09-13

Publications (3)

Publication Number Publication Date
EP0763840A2 EP0763840A2 (en) 1997-03-19
EP0763840A3 EP0763840A3 (en) 1998-05-20
EP0763840B1 true EP0763840B1 (en) 2002-02-20

Family

ID=7771968

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96114388A Revoked EP0763840B1 (en) 1995-09-13 1996-09-09 Metal-clad gas insulated power switch

Country Status (5)

Country Link
US (1) US5750949A (en)
EP (1) EP0763840B1 (en)
JP (1) JPH09167550A (en)
KR (1) KR970017751A (en)
DE (2) DE19533794A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19716023A1 (en) * 1997-04-17 1998-10-22 Asea Brown Boveri Metal encapsulated, gas insulated switchgear
DE19928080C5 (en) * 1999-06-11 2006-11-16 Siemens Ag High voltage circuit breaker with a discharge channel
WO2003005392A1 (en) * 2001-06-29 2003-01-16 Korea Atomic Energy Research Institute Self bouncing arc switch
DE10200956A1 (en) * 2002-01-12 2003-09-04 Abb T & D Tech Ltd High-voltage circuit breakers
JP3860553B2 (en) * 2002-11-19 2006-12-20 三菱電機株式会社 Gas insulated switchgear
JP4429205B2 (en) * 2005-05-16 2010-03-10 三菱電機株式会社 Gas insulation equipment
DE102009009452A1 (en) * 2009-02-13 2010-08-19 Siemens Aktiengesellschaft Switchgear assembly with a switching path
JP5242461B2 (en) * 2009-03-06 2013-07-24 株式会社東芝 Gas circuit breaker
DE102010029440A1 (en) * 2010-05-28 2011-12-01 Abb Technology Ag Power switch i.e. single-phase encapsulated circuit breaker, for gas insulated switchgear, has switch contact units comprising fasteners at electrical feedthroughs, where switching section is arranged between contact units
EP2579287B1 (en) * 2010-05-31 2014-07-02 Ormazabal Y Cia., S.L.U. Gas circuit breaker
EP2662877B1 (en) * 2011-01-07 2019-09-25 Mitsubishi Electric Corporation Switching apparatus
US9595409B2 (en) * 2015-07-09 2017-03-14 Abb Schweiz Ag Particle resistant enclosure for dead tank circuit breaker

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DE3141324C2 (en) * 1981-10-17 1986-02-06 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Circuit breaker
FR2558299B1 (en) * 1984-01-13 1987-03-20 Alsthom Atlantique HIGH VOLTAGE CIRCUIT BREAKER WITH ARC BLOWING
JPH01243328A (en) * 1988-03-25 1989-09-28 Hitachi Ltd Buffer-type gas-blasted circuit breaker
DE3904148A1 (en) * 1989-02-07 1990-08-09 Siemens Ag METAL-ENCLOSED COMPRESSED GAS CIRCUIT BREAKER WITH A SHIFT ROD
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US5478980A (en) * 1994-04-05 1995-12-26 Abb Power T&D Company, Inc. Compact low force dead tank circuit breaker interrupter

Also Published As

Publication number Publication date
EP0763840A3 (en) 1998-05-20
US5750949A (en) 1998-05-12
KR970017751A (en) 1997-04-30
JPH09167550A (en) 1997-06-24
EP0763840A2 (en) 1997-03-19
DE19533794A1 (en) 1997-03-20
DE59608752D1 (en) 2002-03-28

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