EP2810288B1 - Switching device, in particular load interrupter - Google Patents

Switching device, in particular load interrupter Download PDF

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Publication number
EP2810288B1
EP2810288B1 EP13707373.0A EP13707373A EP2810288B1 EP 2810288 B1 EP2810288 B1 EP 2810288B1 EP 13707373 A EP13707373 A EP 13707373A EP 2810288 B1 EP2810288 B1 EP 2810288B1
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EP
European Patent Office
Prior art keywords
contact system
switching device
contact
quenching
main
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EP13707373.0A
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German (de)
French (fr)
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EP2810288A1 (en
Inventor
Stefan Wolf
Rene Zlydnik
Marco Adelmann
Kristian Ermeler
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Siemens AG
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Siemens AG
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Publication of EP2810288A1 publication Critical patent/EP2810288A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches

Definitions

  • the invention relates to a switching device, in particular a switch-disconnector for medium-voltage switchgear, with a main contact system and an extinguishing contact system connected in series with the main contact system, wherein the main contact system and the extinguishing contact system are arranged linearly one behind the other.
  • Such a switching device in the form of a circuit breaker is for example from the EP 1 538 650 A2 or from the EP 1 109 187 A1 known.
  • the load-break switch disclosed therein has a linear arrangement of a main contact system for forming a dielectric separation gap in an opened state and an extinguishing contact system for extinguishing an arc in a switching operation, each having a separate drive with a separate drive shaft for each of the two contact systems.
  • Object of the present invention is to provide a switching device of the type mentioned, which has a simple and compact and therefore cost-effective design.
  • a single drive is provided for initiating a drive movement in a single drive shaft of the switching device, wherein a single cam for transmitting the drive movement, a main contact system cam track for actuating the main contact system and an extinguishing contact system Curve track for actuating the extinguishing contact system has.
  • Such a design of the switching device with a single drive for initiating a drive movement in a single drive shaft of the switching device with a single cam which has a main contact system cam track and a quenching contact system cam track for actuating the main contact system and extinguishing contact system, has a simple and compact structure because the space for a second drive and a second drive shaft are not necessary, and the cost can be saved, so that the switching device also has a cost-effective design.
  • the switching device is arranged in a housing filled with an insulating medium, through which housing passages for electrical connection to a switchgear extend.
  • an insulating medium for example an insulating gas or an insulating liquid, because such insulating gases or insulating fluids have improved dielectric properties .
  • the main contact system is formed by a linear disconnector with a movable sliding contact in a sliding contact and formed as a tulip contact fixed contact, which sliding contact is connected to a first terminal of the switching device.
  • the fixed contact of the main contact system is connected to a moving contact terminal pin of the extinguishing contact system, and a fixed contact of the extinguishing contact system connected to a second terminal of the switching device.
  • the moving contact terminal pin of the extinguishing contact system is coupled via an insulating rod by means of a first guide element with the extinguishing contact system cam track and the moving contact of the main contact system by means of a second guide element with the main contact system cam track.
  • a simple and compact design is possible because of the coupling by means of first and second guide element with the interposition of an insulating rod to moving contact terminal pin of the extinguishing contact system control of moving contact of the main contact system and moving contact terminal pin of the extinguishing contact system on a single cam is made possible with their curved paths.
  • the insulating rod for coupling the moving contact connecting bolt of the extinguishing contact system with the extinguishing contact system curved path can be arranged differently, for example in a trained as a hollow body moving contact of the main contact system, but the insulating rod can also be optionally arranged outside or next to the moving contact of the main contact system and move the moving contact terminal pin of the extinguishing contact system to a switching operation via a suitable driver element.
  • the extinguishing contact system cam track and the main contact system cam track are designed such that at a turn-off of the switching device after opening the extinguishing contact system and extinguishing the arc, the main contact system with open extinguishing contact system is actuated, and at a switch-on of the switching device, the main contact system can be actuated when the extinguishing contact system is closed.
  • the extinguishing contact system curved path for a switch-on and a switch-off for example, the same slope
  • the main contact system curved path for a switch-on a different slope than for a switch-off
  • the slope of the main contact system is modified so that the extinguishing contact system is first closed and only when the extinguishing contact system is closed, the slope of the main contact system cam track leads to a movement and to close the main contact system, so there ss is ignited at a switch-on a Einschaltlichtbogen in the main contact system.
  • the cam is rotatable by 360 °.
  • a cam rotatable by 360 ° it is possible in a simple manner to make the main contact system cam track different for a switch-on or a switch-off, or to provide with different gradients to ensure that when a switch-on, the main contact system until it is closed Erase contact system is actuated, whereas, in contrast, in a turn-off, the main contact system is actuated only when an open contact system and extinguished arc.
  • the drive is cost-effective, because a drive movement can be initiated only in one direction.
  • a grounding device is provided in the housing.
  • a grounding switching device in the same housing which has a separate drive, advantageously allows the grounding of various switchgear parts of a medium voltage switchgear in which the switching device is arranged, depending on the switching state of the switching device, for example when the main contact system is open, a grounding of the cable outlet is possible or when the main contact system is closed and the extinguishing contact system is closed, earthing of the busbar area of the switchgear is also possible.
  • FIG. 1 shows a switching device 1 in the form of a circuit breaker for medium voltage switchgear, which medium-voltage switchgear are figuratively not shown in detail and have a busbar area and a cable outlet area.
  • the switching device 1 has a busbar connection 2 and a cable outlet connection 3, via which a current path is formed by the switching device 1.
  • a main contact system 4 in the form of a linear circuit breaker is electrically connected in series to an extinguishing contact system 5 and arranged linearly behind it so that overall a linear arrangement of the switching device 1 results.
  • the main contact system 4 comprises a first sliding contact 6, which is electrically connected via a connecting element 7 with the cable outlet connection 3.
  • a moving contact 8 of the main contact system 4 is between an off position, which with reference to the FIG. 2 will be explained in more detail later and one in the FIG. 1
  • the closing contact system 5 comprises a moving contact connection bolt 10, which is electrically conductively connected to a moving contact 11 of the extinguishing contact system and to the fixed contact 9 of the main contact system is in electrically conductive connection, and a fixed contact 12, which is electrically conductively connected to the busbar terminal 2 of the switching device 1.
  • a cam 14 is rotatably connected to a drive shaft, not shown figuratively and about this with a figuratively also not shown drive for initiating a drive movement and has an erase contact system cam track 15, a main contact system cam 16.
  • the erase contact system cam track 15 is coupled via a first guide element 17 with the insulating rod 13 for transmitting the drive movement to the moving contact terminal pin 10, the main contact system cam track 16 is via a second guide member 18 with the moving contact 8 of the main contact system 4 for transmitting the drive movement coupled.
  • the switching device 1 and the busbar connection 2 and the cable outlet connection 3 are arranged in a housing 19, which is filled with an insulating medium, for example an insulating gas or an insulating liquid can be arranged.
  • a grounding switch 20 is further arranged, which has a grounding fixed contact 21 in the form of another tulip contact, which is connected to a ground contact terminal 22 located outside the housing for connection to ground potential.
  • the earthing switch 20 comprises a grounding contact 23, which slidably extends through a second sliding contact 24 and is coupled via a third guide element 25 with another cam 26 for initiating a drive movement by means of a grounding contact system cam track 27.
  • the second sliding contact 24 is conductively connected via a further connecting element 28 with the cable outlet connection 3.
  • FIG. 1 is the earthing switch 20 in an open state, the main contact system 4 and the extinguishing contact system 5 of the switching device 1 are in their closed state.
  • a signal to the drive of the switching device 1 is transmitted in the presence of a corresponding switching condition on a control unit of the switchgear, which leads to carry out a rotational movement of the drive shaft and thus the cam 14 in the counterclockwise direction.
  • the rotational movement of the cam plate 14 is transmitted via the quenching contact system cam track 15 and the main contact system cam track 16 and the first guide member 17 and the second guide member 18 on the insulating rod 13 and the moving contact 8, wherein the quenching contact system cam track 15 and the Main contact system cam track 16 are configured such that by their gradients during the turn-off first the deletion contact system cam track 15 transmits a movement to the insulating rod 13, which for opening the deletion contact system 5 by removing the BewegWalletes 11 from the fixed contact 12 of the extinguishing contact system 5 and for deleting the This resulting arc in the extinguishing contact system 5 leads.
  • a signal to the drive for initiating a rotational movement in the drive shaft and the cam plate 14 is transmitted by the control unit in turn, which leads to the rotation of the cam 14 in a clockwise direction. Due to the different configuration of the main contact system cam track 16 for the switch-on of the main contact system 4 with a first portion 29 and a second portion 30 for transmitting a pressure movement to the second guide member 18 is ensured that in such a design by the quenching contact system cam track 15 first the Extinguishing contact system 4 passes into its closed state, before movement of the cam plate 14 is transmitted via the second portion 30 of the main contact system cam 16 on the second guide member 18 and thus the moving contact 8 of the main contact system 4.
  • a drive movement in the moving contact 23 of the earthing switch 20 can be introduced to form a conductive connection between grounding fixed contact 21 and moving contact 23, so that when the main contact system 4 and closed grounding system 5 is a grounding of the entire switchgear area is possible or when the main contact system 4 is open a grounding of at least the cable outlet terminal 3 and the associated switchgear parts is possible.
  • the cam plate 14 is shown as a cam with a limited rotation angle range for a reciprocating motion.
  • the cam disk it is also possible to form the cam disk as a 360 ° rotatable cam, wherein the erase contact system cam track 15 and the main contact system cam track 16 extend over the entire angular range of 360 °.

Description

Die Erfindung betrifft ein Schaltgerät, insbesondere einen Lasttrennschalter für Mittelspannungs-Schaltanlagen, mit einem Hauptkontaktsystem sowie einem zu dem Hauptkontaktsystem in Reihe geschalteten Löschkontaktsystem, wobei das Hauptkontaktsystem und das Löschkontaktsystem linear hintereinander angeordnet sind.The invention relates to a switching device, in particular a switch-disconnector for medium-voltage switchgear, with a main contact system and an extinguishing contact system connected in series with the main contact system, wherein the main contact system and the extinguishing contact system are arranged linearly one behind the other.

Ein derartiges Schaltgerät in Form eines Lasttrennschalters ist beispielsweise aus der EP 1 538 650 A2 oder aus der EP 1 109 187 A1 bekannt. Der dort offenbarte Lasttrennschalter hat eine lineare Anordnung eines Hauptkontaktsystems zum Ausbilden einer dielektrischen Trennstrecke in einem geöffneten Zustand sowie eines Löschkontaktsystems zum Löschen eines Lichtbogens bei einem Schaltvorgang, und weist dazu jeweils einen separaten Antrieb mit separater Antriebswelle für jedes der beiden Kontaktsysteme auf.Such a switching device in the form of a circuit breaker is for example from the EP 1 538 650 A2 or from the EP 1 109 187 A1 known. The load-break switch disclosed therein has a linear arrangement of a main contact system for forming a dielectric separation gap in an opened state and an extinguishing contact system for extinguishing an arc in a switching operation, each having a separate drive with a separate drive shaft for each of the two contact systems.

Aufgabe der vorliegenden Erfindung ist es, ein Schaltgerät der eingangs genannten Art auszubilden, welches über einen einfachen und kompakten und damit auch kostengünstigen Aufbau verfügt.Object of the present invention is to provide a switching device of the type mentioned, which has a simple and compact and therefore cost-effective design.

Erfindungsgemäß gelöst wird diese Aufgabe bei einem Schaltgerät der eingangs genannten Art dadurch, dass ein einziger Antrieb zum Einleiten einer Antriebsbewegung in eine einzige Antriebswelle des Schaltgeräts vorgesehen ist, wobei eine einzige Kurvenscheibe zum Übertragen der Antriebsbewegung eine Hauptkontaktsystem-Kurvenbahn zum Betätigen des Hauptkontaktsystem sowie eine Löschkontaktsystem-Kurvenbahn zum Betätigen des Löschkontaktsystems aufweist.This object is achieved in a switching device of the type mentioned above in that a single drive is provided for initiating a drive movement in a single drive shaft of the switching device, wherein a single cam for transmitting the drive movement, a main contact system cam track for actuating the main contact system and an extinguishing contact system Curve track for actuating the extinguishing contact system has.

Eine derartige Ausbildung des Schaltgerätes mit einem einzigen Antrieb zum Einleiten einer Antriebsbewegung in eine einzige Antriebswelle des Schaltgerätes mit einer einzigen Kurvenscheibe, welche über eine Hauptkontaktsystem-Kurvenbahn sowie eine Löschkontaktsystem-Kurvenbahn zum Betätigen von Hauptkontaktsystem bzw. Löschkontaktsystem verfügt, weist einen einfachen und kompakten Aufbau auf, weil der Platz für einen zweiten Antrieb und eine zweite Antriebswelle nicht notwendig sind, und auch die Kosten hierfür eingespart werden können, so dass das Schaltgerät auch einen kostengünstigen Aufbau aufweist.Such a design of the switching device with a single drive for initiating a drive movement in a single drive shaft of the switching device with a single cam, which has a main contact system cam track and a quenching contact system cam track for actuating the main contact system and extinguishing contact system, has a simple and compact structure because the space for a second drive and a second drive shaft are not necessary, and the cost can be saved, so that the switching device also has a cost-effective design.

In vorteilhafter Ausgestaltung der Erfindung ist das Schaltgerät in einem mit einem Isolationsmedium gefüllten Gehäuse angeordnet, durch welches Gehäuse hindurch sich Anschlüsse zum elektrischen Verbinden mit einer Schaltanlage erstrecken. Eine derartige Anordnung in einem mit einem Isolationsmedium gefüllten Gehäuse führt weiterhin zu einem kompakten Aufbau des Schaltgerätes weil durch Verwendung eines Isolationsmediums, beispielsweise eines Isolationsgases oder einer Isolationsflüssigkeit, die Abmessungen des Schaltgerätes insgesamt reduziert werden können, weil derartige Isolationsgase oder Isolationsflüssigkeiten über verbesserte dielektrische Eigenschaften verfügen. Bei dem im Gehäuse angeordneten Schaltgerät ist durch die Anordnung mit einer einzigen Kurvenscheibe und einer einzigen Antriebswelle auch lediglich eine einzige Durchführung für die Antriebswelle zum Einleiten der Antriebsbewegung in das Gehäuse notwendig, was das Schaltgerät weiterhin kostengünstig macht.In an advantageous embodiment of the invention, the switching device is arranged in a housing filled with an insulating medium, through which housing passages for electrical connection to a switchgear extend. Such an arrangement in a housing filled with an insulating medium further leads to a compact construction of the switching device because the dimensions of the switching device can be reduced in total by using an insulating medium, for example an insulating gas or an insulating liquid, because such insulating gases or insulating fluids have improved dielectric properties , When arranged in the housing switching device is only a single implementation for the drive shaft for initiating the drive movement in the housing required by the arrangement with a single cam and a single drive shaft, which also makes the switching device cost.

In einer besonders vorteilhaften Ausgestaltung der Erfindung ist das Hauptkontaktsystem durch einen Lineartrennschalter mit einem in einem Gleitkontakt verschiebbaren Bewegkontakt sowie einem als Tulpenkontakt ausgebildeten Festkontakt gebildet, welcher Gleitkontakt mit einem ersten Anschluss des Schaltgerätes verbunden ist.In a particularly advantageous embodiment of the invention, the main contact system is formed by a linear disconnector with a movable sliding contact in a sliding contact and formed as a tulip contact fixed contact, which sliding contact is connected to a first terminal of the switching device.

In weiterer vorteilhafter Ausgestaltung der Erfindung ist der Festkontakt des Hauptkontaktsystems mit einem Bewegkontakt-Anschlussbolzen des Löschkontaktsystems verbunden, und ein Festkontakt des Löschkontaktsystems mit einem zweiten Anschluss des Schaltgerätes verbunden.In a further advantageous embodiment of the invention, the fixed contact of the main contact system is connected to a moving contact terminal pin of the extinguishing contact system, and a fixed contact of the extinguishing contact system connected to a second terminal of the switching device.

In einer besonders vorteilhaften Ausgestaltung der Erfindung ist der Bewegkontakt-Anschlussbolzen des Löschkontaktsystems über eine isolierende Stange mittels eines ersten Führungselementes mit der Löschkontaktsystem-Kurvenbahn und der Bewegkontakt des Hauptkontaktsystems mittels eines zweiten Führungselementes mit der Hauptkontaktsystem-Kurvenbahn gekoppelt. Bei einer derartigen Anordnung ist ein einfacher und kompakter Aufbau ermöglicht, weil über die Kopplung mittels ersten bzw. zweitem Führungselement unter Zwischenschaltung einer isolierenden Stange zum Bewegkontakt-Anschlussbolzen des Löschkontaktsystems eine Ansteuerung von Bewegkontakt des Hauptkontaktsystems sowie Bewegkontakt-Anschlussbolzen des Löschkontaktsystems über die eine einzige Kurvenscheibe mit ihren Kurvenbahnen ermöglicht ist. Die isolierende Stange zur Kopplung des Bewegkontakt-Anschlussbolzens des Löschkontaktsystems mit der Löschkontaktsystem-Kurvenbahn kann dabei unterschiedlich angeordnet sein, beispielsweise in einem als Hohlkörper ausgebildeten Bewegkontakt des Hauptkontaktsystems, die isolierende Stange kann aber auch gegebenenfalls außerhalb bzw. neben dem Bewegkontakt des Hauptkontaktsystems angeordnet sein und über ein geeignetes Mitnehmerelement den Bewegkontakt-Anschlussbolzen des Löschkontaktsystems zu einem Schaltvorgang bewegen.In a particularly advantageous embodiment of the invention, the moving contact terminal pin of the extinguishing contact system is coupled via an insulating rod by means of a first guide element with the extinguishing contact system cam track and the moving contact of the main contact system by means of a second guide element with the main contact system cam track. In such an arrangement, a simple and compact design is possible because of the coupling by means of first and second guide element with the interposition of an insulating rod to moving contact terminal pin of the extinguishing contact system control of moving contact of the main contact system and moving contact terminal pin of the extinguishing contact system on a single cam is made possible with their curved paths. The insulating rod for coupling the moving contact connecting bolt of the extinguishing contact system with the extinguishing contact system curved path can be arranged differently, for example in a trained as a hollow body moving contact of the main contact system, but the insulating rod can also be optionally arranged outside or next to the moving contact of the main contact system and move the moving contact terminal pin of the extinguishing contact system to a switching operation via a suitable driver element.

In einer besonders vorteilhaften Ausgestaltung der Erfindung sind die Löschkontaktsystem-Kurvenbahn und die Hauptkontaktsystem-Kurvenbahn derart ausgebildet, dass bei einem Ausschaltvorgang des Schaltgerätes nach Öffnen des Löschkontaktsystems und Löschen des Lichtbogens das Hauptkontaktsystem bei geöffnetem Löschkontaktsystem betätigbar ist, und bei einem Einschaltvorgang des Schaltgerätes das Hauptkontaktsystem bei geschlossenem Löschkontaktsystem betätigbar ist. Mit anderen Worten weist die Löschkontaktsystem-Kurvenbahn für einen Einschaltvorgang und einen Ausschaltvorgang beispielsweise die gleiche Steigung auf, während die Hauptkontaktsystem-Kurvenbahn für einen Einschaltvorgang eine andere Steigung als für einen Ausschaltvorgang aufweist, so dass gewährleistet ist, dass bei einem Ausschaltvorgang des Schaltgerätes zunächst das Löschkontaktsystem geöffnet wird bei geschlossenem Hauptkontaktsystem, und ein bei diesem Schaltvorgang entstehender Lichtbogen im Löschkontaktsystem gelöscht wird und anschließend das Hauptkontaktsystem geöffnet wird zum Ausbilden einer dielektrischen Trennstrecke des Lasttrennschalters, während bei einem Einschaltvorgang die Steigung des Hauptkontaktsystems derart abgewandelt ist, dass zunächst das Löschkontaktsystem geschlossen wird und erst bei geschlossenem Löschkontaktsystem die Steigung der Hauptkontaktsystem-Kurvenbahn zu einer Bewegung und zum Schließen des Hauptkontaktsystems führt, so dass bei einem Einschaltvorgang ein Einschaltlichtbogen im Hauptkontaktsystem gezündet wird. Dies führt zu einem kostengünstigen Aufbau, weil bei einer derartigen Ausgestaltung der Kurvenbahnen für das Löschkontaktsystem eine so genannte nicht einschaltfeste Vakuumschaltröhre verwendbar ist, weil diese dann bereits geschlossen ist, wenn die Bedingungen für einen Lichtbogen bestehen.In a particularly advantageous embodiment of the invention, the extinguishing contact system cam track and the main contact system cam track are designed such that at a turn-off of the switching device after opening the extinguishing contact system and extinguishing the arc, the main contact system with open extinguishing contact system is actuated, and at a switch-on of the switching device, the main contact system can be actuated when the extinguishing contact system is closed. In other words, the extinguishing contact system curved path for a switch-on and a switch-off, for example, the same slope, while the main contact system curved path for a switch-on a different slope than for a switch-off, so as to ensure that at a switch-off of the switching device first Erase contact system is opened when the main contact system is closed, and a resulting in this switching arc in the erase contact system is cleared and then the main contact system is opened to form a dielectric isolation of the circuit breaker, while a power-on, the slope of the main contact system is modified so that the extinguishing contact system is first closed and only when the extinguishing contact system is closed, the slope of the main contact system cam track leads to a movement and to close the main contact system, so there ss is ignited at a switch-on a Einschaltlichtbogen in the main contact system. This leads to a cost-effective design, because in such an embodiment of the curved paths for the extinguishing contact system, a so-called non-switchable vacuum interrupter tube is used, because this is then already closed when the conditions for an arc exist.

In einer besonders vorteilhaften Ausgestaltung der Erfindung ist die Kurvenscheibe um 360° rotierbar. Mit einer um 360° rotierbaren Kurvenscheibe ist es in einfacher Weise möglich, die Hauptkontaktsystem-Kurvenbahn für einen Einschaltvorgang bzw. einen Ausschaltvorgang unterschiedlich zu gestalten, bzw. mit unterschiedlichen Steigungen zu versehen, um zu gewährleisten, dass bei einem Einschaltvorgang das Hauptkontaktsystem erst bei geschlossenem Löschkontaktsystem betätigbar ist, wo hingegen bei einem Ausschaltvorgang das Hauptkontaktsystem erst bei einem geöffneten Löschkontaktsystem und gelöschtem Lichtbogen betätigbar ist. Weiterhin ist bei einer um 360° rotierbaren Kurvenscheibe der Antrieb kostengünstig, weil eine Antriebsbewegung lediglich in eine Richtung einleitbar ist.In a particularly advantageous embodiment of the invention, the cam is rotatable by 360 °. With a cam rotatable by 360 °, it is possible in a simple manner to make the main contact system cam track different for a switch-on or a switch-off, or to provide with different gradients to ensure that when a switch-on, the main contact system until it is closed Erase contact system is actuated, whereas, in contrast, in a turn-off, the main contact system is actuated only when an open contact system and extinguished arc. Furthermore, in the case of a 360 ° rotatable cam, the drive is cost-effective, because a drive movement can be initiated only in one direction.

In weiterer vorteilhafter Ausgestaltung der Erfindung ist im Gehäuse ein Erdungsschaltgerät vorgesehen. Ein derartiges Erdungsschaltgerät im gleichen Gehäuse, welches über einen separaten Antrieb verfügt, ermöglicht in vorteilhafter Weise die Erdung verschiedener Schaltanlagenteile einer Mittelspannungsschaltanlage, in welcher das Schaltgerät angeordnet ist, je nach Schaltzustand des Schaltgerätes, beispielsweise bei geöffnetem Hauptkontaktsystem ist eine Erdung des Kabelabganges möglich bzw. bei geschlossenem Hauptkontaktsystem und geschlossenem Löschkontaktsystem ist auch eine Erdung des Sammelschienenbereiches der Schaltanlage möglich.In a further advantageous embodiment of the invention, a grounding device is provided in the housing. Such a grounding switching device in the same housing, which has a separate drive, advantageously allows the grounding of various switchgear parts of a medium voltage switchgear in which the switching device is arranged, depending on the switching state of the switching device, for example when the main contact system is open, a grounding of the cable outlet is possible or when the main contact system is closed and the extinguishing contact system is closed, earthing of the busbar area of the switchgear is also possible.

Die Erfindung wird im Folgenden anhand der Zeichnung und eines Ausführungsbeispiels mit Bezug auf die beiliegenden Figuren näher erläutert. Es zeigen:

Figur 1:
ein Ausführungsbeispiel eines Schaltgerätes in einer ersten Schaltstellung; und
Figur 2:
das Ausführungsbeispiel des Schaltgerätes der Figur 1 in einer zweiten Schaltstellung.
The invention will be explained in more detail below with reference to the drawing and an embodiment with reference to the accompanying figures. Show it:
FIG. 1:
an embodiment of a switching device in a first switching position; and
FIG. 2:
the embodiment of the switching device of Figure 1 in a second switching position.

Figur 1 zeigt ein Schaltgerät 1 in Form eines Lasttrennschalters für Mittelspannungs-Schaltanlagen, welche Mittelspannungs-Schaltanlagen figürlich nicht näher dargestellt sind und die über einen Sammelschienenbereich und einen Kabelabgangsbereich verfügen. Das Schaltgerät 1 weist dazu einen Sammelschienenanschluss 2 sowie einen Kabelabgangsanschluss 3 auf, über welche durch das Schaltgerät 1 ein Strompfad gebildet ist. Ein Hauptkontaktsystem 4 in Form eines Lineartrennschalters ist einem Löschkontaktsystem 5 elektrisch in Reihe geschaltet und linear hinter diesem angeordnet, so dass sich insgesamt eine lineare Anordnung des Schaltgerätes 1 ergibt. Das Hauptkontaktsystem 4 umfasst einen ersten Gleitkontakt 6, welcher über ein Verbindungselement 7 mit dem Kabelabgangsanschluss 3 elektrisch leitend verbunden ist. Ein Bewegkontakt 8 des Hauptkontaktsystems 4 ist zwischen einer Ausschaltstellung, welche mit Bezug auf die Figur 2 später näher erläutert wird und einer in der Figur 1 dargestellten Einschaltstellung im ersten Gleitkontakt 6 verschiebbar angeordnet und bildet mit einem Festkontakt 9, welcher als Tulpenkontakt ausgebildet ist, das Hauptkontaktsystem 4. Das Löschkontaktsystem 5 umfasst einen Bewegkontakt-Anschlussbolzen 10, welcher mit einem Bewegkontakt 11 des Löschkontaktsystems elektrisch leitend verbunden ist und mit dem Festkontakt 9 des Hauptkontaktsystems in elektrisch leitender Verbindung besteht, sowie einen Festkontakt 12, welcher mit dem Sammelschienenanschluss 2 des Schaltgerätes 1 elektrisch leitend verbunden ist. In dem in der Figur 1 dargestellten geschlossenen Zustand von Hauptkontaktsystem 4 und Löschkontaktsystem 5 ist somit ein Strompfad über den Sammelschienenanschluss 2, den Festkontakt 12 und den Bewegkontakt 11 des Löschkontaktsystems 5 sowie den Festkontakt 9 und den Bewegkontakt 8 des Hauptkontaktsystems 4 und das Verbindungselement 7 zum Kabelabgangsanschluss 3 ausgebildet. Eine Kurvenscheibe 14 ist mit einer figürlich nicht dargestellten Antriebswelle und über diese mit einem figürlich ebenfalls nicht dargestellten Antrieb zum Einleiten einer Antriebsbewegung drehfest verbunden und weist eine Löschkontaktsystem-Kurvenbahn 15, eine Hauptkontaktsystem-Kurvenbahn 16 auf. Die Löschkontaktsystem-Kurvenbahn 15 ist über ein erstes Führungselement 17 mit der isolierenden Stange 13 zum Übertragen der Antriebsbewegung auf den Bewegkontakt-Anschlussbolzen 10 gekoppelt, die Hauptkontaktsystem-Kurvenbahn 16 ist über ein zweites Führungselement 18 mit dem Bewegkontakt 8 des Hauptkontaktsystems 4 zum Übertragen der Antriebsbewegung gekoppelt. FIG. 1 shows a switching device 1 in the form of a circuit breaker for medium voltage switchgear, which medium-voltage switchgear are figuratively not shown in detail and have a busbar area and a cable outlet area. For this purpose, the switching device 1 has a busbar connection 2 and a cable outlet connection 3, via which a current path is formed by the switching device 1. A main contact system 4 in the form of a linear circuit breaker is electrically connected in series to an extinguishing contact system 5 and arranged linearly behind it so that overall a linear arrangement of the switching device 1 results. The main contact system 4 comprises a first sliding contact 6, which is electrically connected via a connecting element 7 with the cable outlet connection 3. A moving contact 8 of the main contact system 4 is between an off position, which with reference to the FIG. 2 will be explained in more detail later and one in the FIG. 1 The closing contact system 5 comprises a moving contact connection bolt 10, which is electrically conductively connected to a moving contact 11 of the extinguishing contact system and to the fixed contact 9 of the main contact system is in electrically conductive connection, and a fixed contact 12, which is electrically conductively connected to the busbar terminal 2 of the switching device 1. In the in the FIG. 1 illustrated closed state of the main contact system 4 and extinguishing contact system 5 is thus a current path via the busbar terminal 2, the fixed contact 12 and the moving contact 11 of the extinguishing contact system 5 and the fixed contact 9 and the moving contact 8 of the main contact system 4 and the connecting element 7 to the cable outlet port 3. A cam 14 is rotatably connected to a drive shaft, not shown figuratively and about this with a figuratively also not shown drive for initiating a drive movement and has an erase contact system cam track 15, a main contact system cam 16. The erase contact system cam track 15 is coupled via a first guide element 17 with the insulating rod 13 for transmitting the drive movement to the moving contact terminal pin 10, the main contact system cam track 16 is via a second guide member 18 with the moving contact 8 of the main contact system 4 for transmitting the drive movement coupled.

Das Schaltgerät 1 und der Sammelschienenanschluss 2 sowie der Kabelabgangsanschluss 3 sind dabei in einem Gehäuse 19 angeordnet, welches mit einem Isolationsmedium, beispielsweise einem Isolationsgas oder einer Isolationsflüssigkeit, befüllt sein kann, angeordnet. In dem Gehäuse 19 ist weiterhin ein Erdungsschalter 20 angeordnet, welcher einen Erdungsfestkontakt 21 in Form eines weiteren Tulpenkontaktes aufweist, welcher mit einem außerhalb des Gehäuses befindlichen Erdungskontaktanschluss 22 zum Verbinden mit Erdpotential verbunden ist. Weiterhin umfasst der Erdungsschalter 20 einen Erdungsbewegkontakt 23, welcher sich durch einen zweiten Gleitkontakt 24 verschiebbar hindurch erstreckt und über ein drittes Führungselement 25 mit einer weiteren Kurvenscheibe 26 zum Einleiten einer Antriebsbewegung mittels einer Erdungskontaktsystem-Kurvenbahn 27 gekoppelt ist. Der zweite Gleitkontakt 24 ist über ein weiteres Verbindungselement 28 mit dem Kabelabgangsanschluss 3 leitend verbunden.The switching device 1 and the busbar connection 2 and the cable outlet connection 3 are arranged in a housing 19, which is filled with an insulating medium, for example an insulating gas or an insulating liquid can be arranged. In the housing 19, a grounding switch 20 is further arranged, which has a grounding fixed contact 21 in the form of another tulip contact, which is connected to a ground contact terminal 22 located outside the housing for connection to ground potential. Furthermore, the earthing switch 20 comprises a grounding contact 23, which slidably extends through a second sliding contact 24 and is coupled via a third guide element 25 with another cam 26 for initiating a drive movement by means of a grounding contact system cam track 27. The second sliding contact 24 is conductively connected via a further connecting element 28 with the cable outlet connection 3.

In der Figur 1 befindet sich der Erdungsschalter 20 in einem geöffneten Zustand, das Hauptkontaktsystem 4 und das Löschkontaktsystem 5 des Schaltgerätes 1 befinden sich in ihrem geschlossenen Zustand. Zum Durchführen eines Ausschaltvorganges wird bei Vorliegen einer entsprechenden Schaltbedingung an einem Steuerungsgerät der Schaltanlage ein Signal an den Antrieb des Schaltgerätes 1 übermittelt, welcher zum Ausführen einer Drehbewegung der Antriebswelle und damit der Kurvenscheibe 14 im Gegenuhrzeigersinn führt. Die Drehbewegung der Kurvenscheibe 14 wird über die Löschkontaktsystem-Kurvenbahn 15 bzw. die Hauptkontaktsystem-Kurvenbahn 16 und das erste Führungselement 17 bzw. das zweite Führungselement 18 auf die isolierende Stange 13 bzw. den Bewegkontakt 8 übertragen, wobei die Löschkontaktsystem-Kurvenbahn 15 und die Hauptkontaktsystem-Kurvenbahn 16 derart ausgestaltet sind, dass durch ihre Steigungen beim Ausschaltvorgang zunächst die Löschkontaktsystem-Kurvenbahn 15 eine Bewegung auf die isolierende Stange 13 überträgt, welche zum Öffnen des Löschkontaktsystems 5 durch Entfernen des Bewegkontaktes 11 vom Festkontakt 12 des Löschkontaktsystems 5 und zum Löschen des Dabei entstehenden Lichtbogens im Löschkontaktsystem 5 führt. Das Löschkontaktsystem 5, welches als Vakuumschaltröhre ausgebildet ist, befindet sich somit in einem geöffneten Zustand und bei gelöschtem Lichtbogen wird durch die Gestaltung der Hauptkontaktsystem-Kurvenbahn 16 dann eine Bewegung auf den Bewegkontakt 8 des Hauptkontaktsystems 4 übertragen, welcher zum Öffnen des Hauptkontaktsystems 4 unter Entfernen des Bewegkontaktes 8 vom Festkontakt 9 des Hauptkontaktsystems 4 führt, so dass schließlich bei geöffnetem Hauptkontaktsystem 4 die Bedingungen einer dielektrischen Trennstrecke erfüllt sind und der in der Figur 2 dargestellte ausgeschaltete Zustand des Schaltgerätes 1 mit geöffnetem Löschkontaktsystem 5 und geöffnetem Hauptkontaktsystem 4 erreicht ist.In the FIG. 1 is the earthing switch 20 in an open state, the main contact system 4 and the extinguishing contact system 5 of the switching device 1 are in their closed state. To carry out a switch-off operation, a signal to the drive of the switching device 1 is transmitted in the presence of a corresponding switching condition on a control unit of the switchgear, which leads to carry out a rotational movement of the drive shaft and thus the cam 14 in the counterclockwise direction. The rotational movement of the cam plate 14 is transmitted via the quenching contact system cam track 15 and the main contact system cam track 16 and the first guide member 17 and the second guide member 18 on the insulating rod 13 and the moving contact 8, wherein the quenching contact system cam track 15 and the Main contact system cam track 16 are configured such that by their gradients during the turn-off first the deletion contact system cam track 15 transmits a movement to the insulating rod 13, which for opening the deletion contact system 5 by removing the Bewegkontaktes 11 from the fixed contact 12 of the extinguishing contact system 5 and for deleting the This resulting arc in the extinguishing contact system 5 leads. The extinguishing contact system 5, which is designed as a vacuum interrupter, is thus in an open position Condition and erased arc is then transferred by the design of the main contact system cam 16, a movement on the moving contact 8 of the main contact system 4, which leads to the opening of the main contact system 4 by removing the moving contact 8 from the fixed contact 9 of the main contact system 4, so that finally when open Main contact system 4, the conditions of a dielectric separation gap are met and in the FIG. 2 illustrated switched-off state of the switching device 1 is reached with open extinguishing contact system 5 and open main contact system 4.

Zum Durchführen eines Einschaltvorganges des Schaltgerätes 1 wird durch die Steuerungseinheit wiederum ein Signal an den Antrieb zum Einleiten einer Drehbewegung in die Antriebswelle und die Kurvenscheibe 14 übermittelt, welches zum Drehen der Kurvenscheibe 14 im Uhrzeigersinn führt. Durch die unterschiedliche Ausgestaltung der Hauptkontaktsystem-Kurvenbahn 16 für den Einschaltvorgang des Hauptkontaktsystems 4 mit einem ersten Abschnitt 29 und einem zweiten Abschnitt 30 zum Übertragen einer Druckbewegung auf das zweite Führungselement 18 ist dabei gewährleistet, dass bei derartiger Gestaltung durch die Löschkontaktsystem-Kurvenbahn 15 zunächst das Löschkontaktsystem 4 in seinen geschlossenen Zustand übergeht, bevor eine Bewegung der Kurvenscheibe 14 über den zweiten Abschnitt 30 der Hauptkontaktsystem-Kurvenbahn 16 auf das zweite Führungselement 18 und damit den Bewegkontakt 8 des Hauptkontaktsystems 4 übertragen wird. Dies hat zur Folge, dass das Löschkontaktsystem 5 sich bereits in einem geschlossenen Zustand befindet, wenn der Bewegkontakt 8 des Hauptkontaktsystems 4 sich dem Festkontakt 9 soweit nähert, dass durch die anliegenden Spannungen ein Lichtbogen gezündet wird. Dadurch ist es möglich, die Vakuumschaltröhre für das Löschkontaktsystem 5 als nicht einschaltfeste Vakuumschaltröhre und damit als kostengünstige Vakuumschaltröhre auszubilden. Im weiteren Verlauf des Einschaltvorganges wird der Bewegkontakt 8 durch die Hauptkontaktsystem-Kurvenbahn 16 nach oben bewegt, bis er schließlich in leitende Verbindung mit dem Festkontakt 9 des Hauptkontaktsystems 4 gelangt, so dass mit dem bereits geschlossenen Löschkontaktsystem 5 wiederum der eingeschaltete Zustand des Schaltgerätes 1, wie in der Figur 1 beschrieben, erreicht ist.To perform a switch-on of the switching device 1, a signal to the drive for initiating a rotational movement in the drive shaft and the cam plate 14 is transmitted by the control unit in turn, which leads to the rotation of the cam 14 in a clockwise direction. Due to the different configuration of the main contact system cam track 16 for the switch-on of the main contact system 4 with a first portion 29 and a second portion 30 for transmitting a pressure movement to the second guide member 18 is ensured that in such a design by the quenching contact system cam track 15 first the Extinguishing contact system 4 passes into its closed state, before movement of the cam plate 14 is transmitted via the second portion 30 of the main contact system cam 16 on the second guide member 18 and thus the moving contact 8 of the main contact system 4. This has the consequence that the extinguishing contact system 5 is already in a closed state when the moving contact 8 of the main contact system 4 approaches the fixed contact 9 so far that an arc is ignited by the applied voltages. This makes it possible to design the vacuum interrupter for the extinguishing contact system 5 as a non-switchable vacuum interrupter and thus as a cost-effective vacuum interrupter. In the further course of the switch-on process, the moving contact 8 is moved through the main contact system cam track 16 moves upward until it finally comes into conductive connection with the fixed contact 9 of the main contact system 4, so that with the already closed extinguishing contact system 5 turn the on state of the switching device 1, as in the FIG. 1 described is reached.

Unabhängig vom Zustand des Schaltgerätes 1 bzw. dem Zustand von Hauptkontaktsystem 4 und Löschkontaktsystem 5 ist über die Kurvenscheibe 26 eine Antriebsbewegung in den Bewegkontakt 23 des Erdungsschalters 20 einleitbar zum Ausbilden einer leitenden Verbindung zwischen Erdungsfestkontakt 21 und Bewegkontakt 23, so dass bei geschlossenem Hauptkontaktsystem 4 und geschlossenen Löschkontaktsystem 5 eine Erdung des gesamten Schaltanlagenbereiches ermöglicht ist bzw. bei geöffnetem Hauptkontaktsystem 4 eine Erdung zumindest des Kabelabgangsanschlusses 3 und der damit verbundenen Schaltanlagenteile ermöglicht ist.Regardless of the state of the switching device 1 or the state of the main contact system 4 and extinguishing contact system 5 is via the cam 26, a drive movement in the moving contact 23 of the earthing switch 20 can be introduced to form a conductive connection between grounding fixed contact 21 and moving contact 23, so that when the main contact system 4 and closed grounding system 5 is a grounding of the entire switchgear area is possible or when the main contact system 4 is open a grounding of at least the cable outlet terminal 3 and the associated switchgear parts is possible.

Im beschriebenen Ausführungsbeispiel ist die Kurvenscheibe 14 als Kurvenscheibe mit einem eingeschränkten Drehwinkelbereich für eine Hin- und Herbewegung dargestellt. Es ist jedoch auch möglich, die Kurvenscheibe als eine um 360° rotierbare Kurvenscheibe auszubilden, wobei sich die Löschkontaktsystem-Kurvenbahn 15 und die Hauptkontaktsystem-Kurvenbahn 16 über den ganzen Winkelbereich von 360° erstrecken. Damit ist einerseits ermöglicht, eine Antriebsbewegung immer in die gleiche Richtung einzuleiten, was die Gestaltung des Antriebs vereinfacht und andererseits ist durch die entsprechende Gestaltung der Steigungen von Löschkontaktsystem-Kurvenbahn 15 und Hauptkontaktsystem-Kurvenbahn 16 auch bei einer um 360° rotierbaren Kurvenscheibe die Möglichkeit gegeben, die Steigungen derart zueinander zu wählen, dass gewährleistet ist, dass bei einem Einschaltvorgang zunächst das Löschkontaktsystem 5 geschlossen wird und erst dann das Hauptkontaktsystem 4 zu einem Einschaltvorgang veranlasst wird, und andererseits bei einem Ausschaltvorgang zunächst das Löschkontaktsystem 5 zum Löschen des Lichtbogens geöffnet wird und anschließend des Hauptkontaktsystem 4 zum Ausbilden der dielektrischen Trennstrecke geöffnet wird.In the described embodiment, the cam plate 14 is shown as a cam with a limited rotation angle range for a reciprocating motion. However, it is also possible to form the cam disk as a 360 ° rotatable cam, wherein the erase contact system cam track 15 and the main contact system cam track 16 extend over the entire angular range of 360 °. This makes it possible on the one hand always initiate a drive movement in the same direction, which simplifies the design of the drive and on the other hand is given by the appropriate design of the gradients of quenching contact system cam 15 and main contact system cam 16 even with a 360 ° rotatable cam the possibility to choose the slopes to each other so that it is ensured that at a power-up first the extinguishing contact system 5 is closed and only then the main contact system 4 is caused to a power-up, and on the other hand at a power-off first the extinguishing contact system 5 is opened to extinguish the arc and subsequently of the main contact system 4 is opened to form the dielectric separation gap.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Schaltgerätswitchgear
22
SammelschienenanschlussBusbar connection
33
KabelabgangsanschlussCable outlet connection
44
HauptkontaktsystemMain contact system
55
LöschkontaktsystemExtinguishing contact system
66
erster Gleitkontaktfirst sliding contact
77
Verbindungselementconnecting element
88th
Bewegkontaktmoving contact
99
Festkontaktfixed contact
1010
Bewegkontakt-AnschlussbolzenMoving contact terminal bolts
1111
Bewegkontakt LöschkontaktsystemMoving contact extinguishing contact system
1212
Festkontakt LöschkontaktsystemFixed contact extinguishing contact system
1313
isolierende Stangeinsulating rod
1414
Kurvenscheibecam
1515
Löschkontaktsystem-KurvenbahnContact extinguishing system cam track
1616
Hauptkontaktsystem-KurvenbahnMain contact system cam track
1717
erstes Führungselementfirst guide element
1818
zweites Führungselementsecond guide element
1919
Gehäusecasing
2020
Erdungsschalterearthing switch
2121
Erdungsschalter FestkontaktEarthing switch fixed contact
2222
ErdungskontaktanschlussGround contact terminal
2323
Bewegkontakt ErdungsschalterMoving contact earthing switch
2424
zweiter Gleitkontaktsecond sliding contact
2525
drittes Führungselementthird guide element
2626
zweite Kurvenscheibesecond cam
2727
Erdungskontaktsystem-KurvenbahnGround contact system-cam
2828
weiteres Verbindungselementanother connecting element
2929
erster Abschnittfirst section
3030
zweiter Abschnittsecond part

Claims (8)

  1. Switching device (1), in particular load interrupter for medium-voltage switchgear assemblies, having a main contact system (4) and a quenching contact system (5) connected in series with the main contact system (4), wherein the main contact system (4) and the quenching contact system (5) are arranged linearly one behind the other,
    characterized in that
    a single drive is provided for introducing a drive movement into a single driveshaft of the switching device (1), wherein a single cam disk (14) for transferring the drive movement has a main contact system curved path (16) for actuating the main contact system (4) and a quenching contact system curved path (15) for actuating the quenching contact system (5).
  2. Switching device (1) according to Claim 1,
    characterized in that
    the switching device (1) is arranged in a housing (19) filled with an insulating medium, through which housing (19), connections (2, 3) for electrically connecting to a switchgear assembly extend.
  3. Switching device (1) according to Claim 1 or 2,
    characterized in that
    the main contact system (4) is formed by an in-line disconnector having a moving contact (8) which is displaceable in a sliding contact (6) and a fixed contact (9) which is designed as a tulip contact, which sliding contact (6) is connected to a first connection (3) of the switching device.
  4. Switching device (1) according to Claim 3,
    characterized in that
    the fixed contact (9) of the main contact system (4) is connected to a moving contact connection pin (10) of the quenching contact system (5), and a fixed contact (12) of the quenching contact system (5) is connected to a second connection (2) of the switching device (1).
  5. Switching device (1) according to any of Claims 1 to 4, characterized in that
    the moving contact connection pin (10) of the quenching contact system (5) is coupled via an insulating rod (13) by means of a first guiding element (17) to the quenching contact system curved path (15) and the moving contact (8) of the main contact system (4) is coupled by means of a second guiding element (18) to the main contact system curved path (16).
  6. Switching device (1) according to any of the preceding claims,
    characterized in that
    the quenching contact system curved path (15) and the main contact system curved path (16) are designed such that, in the event of a switch-off process of the switching device (1) after the quenching contact system (5) has been opened and the arc has been quenched, the main contact system (4) is actuable when the quenching contact system (5) is open, and, in the event of a switch-on process of the switching device (1), the main contact system (4) is actuable when the quenching contact system (5) is closed.
  7. Switching device (1) according to any of the preceding claims,
    characterized in that
    the cam disk (14) is rotatable through 360°.
  8. Switching device (1) according to any of the preceding claims,
    characterized in that
    a grounding switching device (20) is provided in the housing (19) .
EP13707373.0A 2012-03-15 2013-03-01 Switching device, in particular load interrupter Active EP2810288B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012204049 2012-03-15
PCT/EP2013/054181 WO2013135505A1 (en) 2012-03-15 2013-03-01 Switching device, in particular load interrupter

Publications (2)

Publication Number Publication Date
EP2810288A1 EP2810288A1 (en) 2014-12-10
EP2810288B1 true EP2810288B1 (en) 2019-12-04

Family

ID=47790218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13707373.0A Active EP2810288B1 (en) 2012-03-15 2013-03-01 Switching device, in particular load interrupter

Country Status (4)

Country Link
EP (1) EP2810288B1 (en)
CN (1) CN104170040B (en)
ES (1) ES2770800T3 (en)
WO (1) WO2013135505A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105845494B (en) * 2015-01-15 2019-05-10 施耐德电器工业公司 Shunt open-circuit system
DE102018102835B4 (en) 2018-02-08 2023-03-16 Maschinenfabrik Reinhausen Gmbh Switching element for step switch and step switch

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126779A (en) * 1966-08-01 1968-09-11 Ass Elect Ind A switching arrangement employing vacuum switches
DE7702053U1 (en) * 1977-01-25 1983-08-11 Elektrotechnische Werke Fritz Driescher & Söhne GmbH & Co, 8052 Moosburg Vacuum switchgear
IT1309626B1 (en) * 1999-11-03 2002-01-30 Vei Electric Systems Spa SECTIONING AND INTERRUPTION DEVICE, FOR ELECTRICAL CABINETS.
DE19958645C5 (en) * 1999-12-06 2011-05-26 Abb Technology Ag Hybrid circuit breaker
ES2654037T3 (en) * 2003-12-02 2018-02-12 Schneider Electric Energy Manufacturing Italia S.R.L. Switching device / circuit breaker for electrical substations
DE102005013231B3 (en) * 2005-03-18 2006-09-21 Siemens Ag Cam profile switch
DE102007038898B3 (en) * 2007-08-13 2008-11-20 Siemens Ag Switch arrangement for a switchgear
DE102008045641B3 (en) * 2008-09-03 2010-05-06 Siemens Aktiengesellschaft Camshaft drive for a vacuum interrupter and switching device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN104170040A (en) 2014-11-26
WO2013135505A1 (en) 2013-09-19
CN104170040B (en) 2017-03-08
EP2810288A1 (en) 2014-12-10
ES2770800T3 (en) 2020-07-03

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