EP2153452B1 - Switching device having a vacuum interrupter chamber - Google Patents

Switching device having a vacuum interrupter chamber Download PDF

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Publication number
EP2153452B1
EP2153452B1 EP08749242.7A EP08749242A EP2153452B1 EP 2153452 B1 EP2153452 B1 EP 2153452B1 EP 08749242 A EP08749242 A EP 08749242A EP 2153452 B1 EP2153452 B1 EP 2153452B1
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EP
European Patent Office
Prior art keywords
contact
switching device
switching
copper
contact piece
Prior art date
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EP08749242.7A
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German (de)
French (fr)
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EP2153452A1 (en
Inventor
Dietmar Gentsch
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ABB Schweiz AG
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ABB Schweiz AG
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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/40—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material
    • H01H1/0233—Composite material having a noble metal as the basic material and containing carbides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/025—Composite material having copper as the basic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/04—Co-operating contacts of different material
    • 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
    • H01H2033/6668—Operating arrangements with a plurality of interruptible circuit paths in single vacuum chamber

Definitions

  • the invention relates to a switching device with vacuum switching chamber in which at least one movable contact piece is arranged, according to the preamble of claim 1.
  • vacuum interrupters which have a drive or a drive option for each separating stroke (switching path).
  • VK vacuum interrupter chamber
  • one is permanently installed in the VK, one is movably arranged on a supply line. The movement of the arranged in the VK contact piece via the supply line and a bellows.
  • two switching paths here two vacuum switching chambers, are connected in series.
  • VK vacuum interrupters
  • the two contacts are acted upon by a common drive. It is also advantageous that the two contacts are formed by three contact pieces. In a further advantageous embodiment, it is indicated that one of the contact pieces is driven directly forcibly guided by the drive, while the other contact piece is driven indirectly by spring force and in at least one Actuate direction along or trailing.
  • the accompanying or trailing contact piece is surrounded by a cup-shaped arrangement.
  • cup-shaped arrangement with the contact piece in one piece or at least firmly connected.
  • cup-shaped arrangement is provided with an opening through which a contact piece is arranged, which has effective contact surfaces on both sides.
  • At least one of the two supply lines is made of copper.
  • At least one of the contacts is made of a copper-chromium alloy.
  • a special matched material combination is that one of the contacts, or the contact surfaces of the one contact made of a tungsten-copper alloy or a tungsten carbide-silver alloy, wherein the contact pieces of the other contact consists of a copper-chromium alloy.
  • both switching sections are in series; the standard contact pressure force for a VK must be applied by a switching device.
  • the arrangement in which the central contact area is formed by or surrounded by a cup-shaped arrangement while keeping it floating has enormous advantages both in arc extinguishing and dielectric strength advantages.
  • FIG. 1 shows a load switch - Vacuum switching chamber (3) with two integrated switching paths between the contact pieces (7-8 and 8-9).
  • One side of the Vacuum switching chamber is equipped with a movable supply line (2). Via a bellows (1), the supply line (2) and also the contact piece (7) can be moved within the VK. The insulation between the components (4) and ((10) fixed contact side) of the VK takes over the insulator (6).
  • the supply line (2) is moved together with the component (8) arranged movably in the vacuum interrupter chamber.
  • the component (8) is connected via a Randbord on the insulator (6) with a spring member (5).
  • the bias allows the contact stroke (8-9).
  • After reaching a preset contact stroke of the switching path (8-9) opens the switching path (7-8), it is opened, the second contact section.
  • a Hubbegrenzung of the components (8) can be done by this or another edge board (not shown here)
  • FIG. 2 is a similar load switch shown with small changes compared to the illustration FIG. 1 , FIG. 2 therefore also shows a load switch - Vacuum switching chamber (3) with two integrated switching paths between the contact pieces (7-8 and 8-9).
  • One side of the vacuum interrupter chamber is equipped with a movable supply line (2). Via a bellows (1), the supply line (2) and also the contact piece (7) can be moved within the VK.
  • the insulation between the components (4) and ((10), fixed contact side consisting of a lid and a fixed contact carrier)) of the VK takes over the insulator (6).
  • the supply line (2) is moved together with the component (8) arranged movably in the vacuum interrupter chamber.
  • the component (8) is connected via a Randbord on the insulator (6) with a spring member (5).
  • the bias allows the contact stroke (8-9). After reaching a preset contact stroke of the switching path (8-9) opens the switching path (7-8), it is opened, the second contact section.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Contacts (AREA)
  • Push-Button Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Description

Die Erfindung betrifft ein Schaltgerät mit Vakuumschaltkammer in dem mindestens ein bewegliches Kontaktstück angeordnet ist, gemäß Oberbegriff des Patentanspruches 1.The invention relates to a switching device with vacuum switching chamber in which at least one movable contact piece is arranged, according to the preamble of claim 1.

In der Regel sind Vakuumschaltkammern bekannt, die für jeden Trennhub (Schaltstrecke) einen Antrieb bzw. eine Antriebsmöglichkeit aufweisen. Dazu befinden sich in einer Vakuumschaltkammer (VK) Kontaktstücke, eines ist in der VK fest eingebaut, eines ist beweglich an einer Zuleitung angeordnet. Die Bewegung des in der VK angeordneten Kontaktstückes erfolgt über die Zuleitung und einen Balg. Des Weiteren werden im Falle einer geforderten Neuzündungsfreiheit einer Schaltvorrichtung vorteilhafter Weise zwei Schaltstrecken, hier zwei Vakuumschaltkammern in Reihe geschaltet.In general, vacuum interrupters are known which have a drive or a drive option for each separating stroke (switching path). For this purpose, located in a vacuum interrupter chamber (VK) contact pieces, one is permanently installed in the VK, one is movably arranged on a supply line. The movement of the arranged in the VK contact piece via the supply line and a bellows. Furthermore, in the case of a required ignition-free freedom of a switching device, advantageously two switching paths, here two vacuum switching chambers, are connected in series.

Bekannte übliche Vakuumschaltkammern (VK) sind mit einer Schaltstrecke ausgerüstet und sind überwiegend standardisiert.Known conventional vacuum interrupters (VK) are equipped with a switching path and are mostly standardized.

Werden Vakuumschaltkammern mit einer erhöhten dielektrischen Festigkeit nach Last- oder Leistungsschaltungen benötigt werden sehr große Abstände innerhalb einer Schaltkammer benötigt, dieses gilt natürlich auch für den Abstand (den Trennhub) zwischen den KontaktstückenBecome vacuum interrupters with increased dielectric strength after load or power circuits are required very large distances within a switching chamber needed, this of course also applies to the distance (the separating stroke) between the contact pieces

Wird eine Neuzündungsfreiheit einer Schalteinrichtung gefordert, so werden zum Teil zwei Schaltstrecken in Reihe geschaltet. Die beiden Vakuumschaltkammern müssen jedoch separat angetrieben werden. Dieses kann über zwei Schaltgeräte oder über ein Schaltgerät mit einem Hebelsystem (Getriebe) erfolgen.If a re-ignition freedom of a switching device is required, then in part two switching paths are connected in series. However, the two vacuum interrupters must be driven separately. This can be done via two switching devices or via a switching device with a lever system (gearbox).

Werden z.B. zwei Vakuumschaltkammern gewählt, ist der technische Aufwand für die Einheit groß und ist mit hohen Kosten verbunden. Eine weitere Einschränkung ist das vergleichsweise große Volumen, das derzeit für eine Doppelvakuumschaltkammer - Anordnung notwendig ist. Sind Schalteinrichtungen für den Bereich der Lastschalter bzw. für das kapazitive Schalten gefordert, so ist ein sicheres (geringe Zahl an Neuzündungen) Ausschalten erforderlich. Aus der DE 197 56 308 C1 ist ein solches System bekannt. Dabei sind zwei Kontaktsysteme in Reihe vorgesehen, wodurch zwei Schaltstrecken durch vier Kontakte gebildet werden. Nachteilig ist, dass die tatsächliche optimale synchrone Schaltauslösung abhängig ist von den Fertigungstoleranzen bei der Montage beider Schaltstrecken zueinander.
Aus der US 3 405 245 A ist eine Schaltanordnung bekannt, bei welcher ein Mittelkontakt zwar über einen kurzen Balg bewegbar, ist abwer als solcher nur einen kurzen Hub ausführen kann. Dabei wird der Isolationshub kleiner.
Der Erfindung liegt damit die Aufgabe zugrunde, die Schaltleistung und die dielektrische Festigkeit deutlich zu steigern.
Die gestellte Aufgabe wird bei einem Schaltgerät der gattungsgemäßen Art durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.
Weitere vorteilhafte Ausgestaltungen sind in den abhängigen Ansprüchen angegeben. Kern der Erfindung ist hierbei einen Reihenkontakt konstruktiv innerhalb einer Vakuumschaltkammer zu realisieren, dass innerhalb einer Vakuumschaltkammer zwei in Reihe geschaltete Kontaktanordnungen mit insgesamt zwei öffenbaren Kontaktebenen angeordnet sind, wobei die beiden Kontakte über drei Kontaktstücke gebildet werden. Dabei sind die beiden Reihenkontakte innerhalb EINER Vakuumschaltkammer angeordnet. Dadurch wird die Schaltperformance insbesondere in Richtung der dielektrischen Festigkeit deutlich gesteigert.If, for example, two vacuum interrupters selected, the technical complexity of the unit is large and is associated with high costs. Another limitation is the comparatively large volume currently required for a dual vacuum switching chamber arrangement. If switching devices are required for the area of the load switches or for the capacitive switching, a safe (low number of reignitions) switching off is required. From the DE 197 56 308 C1 such a system is known. In this case, two contact systems are provided in series, whereby two switching paths are formed by four contacts. The disadvantage is that the actual optimum synchronous switching release is dependent on the manufacturing tolerances in the assembly of both switching paths to each other.
From the US 3 405 245 A discloses a circuit arrangement in which a center contact, although movable over a short bellows is abwer as such can only execute a short stroke. The isolation stroke becomes smaller.
The invention is thus based on the object of significantly increasing the switching capacity and the dielectric strength.
The stated object is achieved in a switching device of the generic type by the characterizing features of claim 1.
Further advantageous embodiments are specified in the dependent claims. The core of the invention here is to realize a series contact constructively within a vacuum interrupter chamber, that within a vacuum interrupter two series-connected contact arrangements are arranged with a total of two openable contact planes, wherein the two contacts are formed via three contact pieces. The two series contacts are arranged within a vacuum interrupter chamber. As a result, the switching performance is significantly increased, in particular in the direction of the dielectric strength.

In weiterer vorteilhafter Ausgestaltung ist angegeben. dass die beiden Kontakte über einen gemeinsamen Antrieb beaufschlagt werden.
Vorteilhaft ist ebenfalls, dass die beiden Kontakte über drei Kontaktstücke gebildet werden.
In weiterer vorteilhafter Ausgestaltung ist angegeben, dass einer der Kontaktstücke über den Antrieb direkt zwangsgeführt angetrieben ist, während das andere Kontaktstück über Federkraft indirekt angetrieben ist und in zumindest einer Betätlgungsrichtung mit- oder nachlaufend ist.In a further advantageous embodiment is indicated. that the two contacts are acted upon by a common drive.
It is also advantageous that the two contacts are formed by three contact pieces.
In a further advantageous embodiment, it is indicated that one of the contact pieces is driven directly forcibly guided by the drive, while the other contact piece is driven indirectly by spring force and in at least one Actuate direction along or trailing.

In weiterer besonders vorteilhafter Ausgestaltungen ist angegeben, dass das mit- oder nachlaufende Kontaktstück potentialfrei ist. Damit ist im Hinblick auf eine zuverlässige Lichtbogenlöschung eine große Verbesserung geleistet.In further particularly advantageous embodiments, it is indicated that the accompanying or trailing contact piece is potential-free. This is a great improvement in terms of reliable arc extinguishing.

In weiterer vorteilhafter Ausgestaltung ist angegeben, dass das mit- oder nachlaufende Kontaktstück von einer becherförmigen Anordnung umgeben ist.In a further advantageous embodiment, it is indicated that the accompanying or trailing contact piece is surrounded by a cup-shaped arrangement.

Weiterhin ist ausgestaltet, dass der die becherförmige Anordnung mit dem Kontaktstück einstückig oder zumindest fest verbunden ist.Furthermore, it is configured that the cup-shaped arrangement with the contact piece in one piece or at least firmly connected.

Besonders vorteilhaft ist eine Ausgestaltung bei welcher die becherförmige Anordnung mit einer Öffnung versehen ist, durch welche ein Kontaktstück hindurch angeordnet ist, welches wirksame Kontaktflächen auf beiden Seiten aufweist.Particularly advantageous is an embodiment in which the cup-shaped arrangement is provided with an opening through which a contact piece is arranged, which has effective contact surfaces on both sides.

Weiterhin ist vorteilhaft ausgestaltet, dass für die Zuleitung ein Werkstoff mit einer gegenüber Kupfer geringeren Leitfähigkeit eingesetzt wird.Furthermore, it is advantageously configured that a material with a lower conductivity than copper is used for the supply line.

Dabei ist mindestens eine der beiden Zuleitungen aus Kupfer gefertigt ist.At least one of the two supply lines is made of copper.

In einer speziellen Ausgestaltung ist angegeben, dass innerhalb der äußeren Vakuumschaltkammer noch eine weitere innere Schaltkammer befindet, die so darin angeordnet ist, dass die beiden sich ergebenden Kontakte in in der Schaltstrecke in Reihe geschaltet sind.In a specific embodiment it is stated that within the outer vacuum interrupter chamber there is still a further inner interrupter chamber which is arranged in such a way that the two resulting contacts are connected in series in the switching path.

Für die Kontaktstücke sind verschiedene Materialkombinationen vorteilhaft. So zum Beispiel, dass mindestens einer der Kontaktstücke aus einer Kupfer-Chrom-Legierung besteht.Different combinations of materials are advantageous for the contact pieces. For example, at least one of the contacts is made of a copper-chromium alloy.

Eine spezielle aufeinander abgestimmte Materialkombination ist, dass einer der Kontakte, oder die Kontakflächen des einen Kontaktes aus einer Wolfram-Kupfer-Legierung oder aus einer Wolframcarbid-Silber-Legierung besteht, wobei die Kontaktstücke des anderen Kontaktes aus einer Kupfer-Chrom-Legierung besteht.A special matched material combination is that one of the contacts, or the contact surfaces of the one contact made of a tungsten-copper alloy or a tungsten carbide-silver alloy, wherein the contact pieces of the other contact consists of a copper-chromium alloy.

Die Erfindung ist in Ausführungsbeispielen in der Zeichnung dargestellt und nachfolgend näher beschrieben.The invention is illustrated in exemplary embodiments in the drawing and described in more detail below.

Es zeigt:

Figur 1:
Lastschalter 1. Ausführungsform
Figur 2:
Lastschalter 2. Ausführungsform
It shows:
FIG. 1:
Load switch 1st embodiment
FIG. 2:
Load switch 2nd embodiment

Zur Integration von zwei Schaltstrecken in nur einer Vakuumschaltkammer und nur einer von außen angetriebenen Zuleitung befindet sich innerhalb der Vakuumschaltkammer ein weiteres bewegliches Bauteil. Beim Ausschalten erfolgt die Bewegungseinleitung in die VK über die Zuleitung (die Schaltseite). Zunächst wird beim Ausschalten eine Kontaktstelle geöffnet und nach dem Überschreiten des ersten Trennhubes erfolgt der zweite Trennhub oberhalb des beweglichen Bauteiles in der VK, siehe Fig. 1 und Fig.2. Ist der volle Trennhub erreicht, sind beide Schaltstrecken geöffnet. Bei dieser Anordnung ist naturgemäß ein höherer Kontakthub (die Summe aus den beiden Trennstrecken) vom Schaltgerät (und der beweglichen Zuleitung) erforderlich.For the integration of two switching paths in only one vacuum switching chamber and only one externally driven supply line is located within the vacuum interrupter another movable component. When switching off the motion is introduced into the VK via the supply line (the switching side). First, when switching off a contact point is opened and after exceeding the first separation stroke, the second separation stroke is carried out above the movable member in the VK, see Fig. 1 and Fig.2 , Once the full separation stroke has been reached, both switching paths are open. In this arrangement, of course, a higher contact stroke (the sum of the two separation distances) from the switching device (and the movable supply line) is required.

Werden zwei separate Vakuumschaltkammern eingesetzt, so ist an jeder VK die erforderliche Kontaktkraft aufzubringen, es wird somit die doppelte Kontaktandruckkraft benötigt. Im Fall der integrierten Schaltstrecken liegen beiden Schaltstrecken in Reihe, es muss von einem Schaltgerät die Standard Kontaktdruck - Kraft für eine VK aufgebracht werden.If two separate vacuum interrupters are used, the required contact force must be applied to each VK, thus requiring twice the contact pressure force. In the case of the integrated switching sections, both switching sections are in series; the standard contact pressure force for a VK must be applied by a switching device.

Die Anordnung ,bei welcher der mittlere Kontaktbereich durch eine becherförmige Anordnung gebildet ist oder von derselben umgeben wird, und diese dabei potentialfrei zu halten, hat enorme Vorteile sowohl in Bezug auf die Löschung des Lichtbogens, als auch Vorteile bezüglich der damit erreichten dielektrischen Festigkeit.The arrangement in which the central contact area is formed by or surrounded by a cup-shaped arrangement while keeping it floating has enormous advantages both in arc extinguishing and dielectric strength advantages.

Figur 1 zeigt einen Lastschalter - Vakuumschaltkammer (3) mit zwei integrierten Schaltstrecken zwischen den Kontaktstücken (7-8 und 8-9). Eine Seite der Vakuumschaltkammer ist mit einer beweglichen Zuleitung (2) ausgerüstet. Über einen Balg (1) kann die Zuleitung (2) und auch das Kontaktstück (7) innerhalb der VK bewegt werden. Die Isolation zwischen den Bauteilen (4) und ((10), Festkontaktseite)) der VK übernimmt der Isolator (6). Beim Ausschalten wird zunächst die Zuleitung (2) zusammen mit dem beweglich in der Vakuumschaltkammer angeordnetem Bauteil (8) bewegt. Das Bauteil (8) ist über einen Randbord am Isolator (6) mit einem Federbauteil (5) verbunden. Die Vorspannung ermöglicht den Kontakthub (8-9). Nach dem Erreichen eines voreingestellten Kontakthubes der Schaltstrecke (8-9) öffnet die Schaltstrecke (7-8), es wird die zweite Kontaktstrecke geöffnet. Eine Hubbegrenzung des Bauteile (8) kann durch diesen oder einen weiteren Randbord erfolgen (hier nicht näher dargestellt) FIG. 1 shows a load switch - Vacuum switching chamber (3) with two integrated switching paths between the contact pieces (7-8 and 8-9). One side of the Vacuum switching chamber is equipped with a movable supply line (2). Via a bellows (1), the supply line (2) and also the contact piece (7) can be moved within the VK. The insulation between the components (4) and ((10) fixed contact side) of the VK takes over the insulator (6). When switching off, first the supply line (2) is moved together with the component (8) arranged movably in the vacuum interrupter chamber. The component (8) is connected via a Randbord on the insulator (6) with a spring member (5). The bias allows the contact stroke (8-9). After reaching a preset contact stroke of the switching path (8-9) opens the switching path (7-8), it is opened, the second contact section. A Hubbegrenzung of the components (8) can be done by this or another edge board (not shown here)

In Figur 2 ist ein ähnlicher Lastschalter dargestellt mit kleinen Veränderungen gegenüber der Darstellung aus Figur 1. Figur 2 zeigt daher ebenfalls einen Lastschalter - Vakuumschaltkammer (3) mit zwei integrierten Schaltstrecken zwischen den Kontaktstücken (7-8 und 8-9). Eine Seite der Vakuumschaltkammer ist mit einer beweglichen Zuleitung (2) ausgerüstet. Über einen Balg (1) kann die Zuleitung (2) und auch das Kontaktstück (7) innerhalb der VK bewegt werden. Die Isolation zwischen den Bauteilen (4) und ((10), Festkontaktseite bestehend aus einem Deckel und einem Festkontaktträger)) der VK übernimmt der Isolator (6). Beim Ausschalten wird zunächst die Zuleitung (2) zusammen mit dem beweglich in der Vakuumschaltkammer angeordnetem Bauteil (8) bewegt. Das Bauteil (8) ist über einen Randbord am Isolator (6) mit einem Federbauteil (5) verbunden. Die Vorspannung ermöglicht den Kontakthub (8-9). Nach dem Erreichen eines voreingestellten Kontakthubes der Schaltstrecke (8-9) öffnet die Schaltstrecke (7-8), es wird die zweite Kontaktstrecke geöffnet.In FIG. 2 is a similar load switch shown with small changes compared to the illustration FIG. 1 , FIG. 2 therefore also shows a load switch - Vacuum switching chamber (3) with two integrated switching paths between the contact pieces (7-8 and 8-9). One side of the vacuum interrupter chamber is equipped with a movable supply line (2). Via a bellows (1), the supply line (2) and also the contact piece (7) can be moved within the VK. The insulation between the components (4) and ((10), fixed contact side consisting of a lid and a fixed contact carrier)) of the VK takes over the insulator (6). When switching off, first the supply line (2) is moved together with the component (8) arranged movably in the vacuum interrupter chamber. The component (8) is connected via a Randbord on the insulator (6) with a spring member (5). The bias allows the contact stroke (8-9). After reaching a preset contact stroke of the switching path (8-9) opens the switching path (7-8), it is opened, the second contact section.

Claims (8)

  1. Switching device with a vacuum interrupter chamber (3) in which at least one moving contact piece (7,8) is arranged, wherein two series-connected contact arrangements with a total of two contact levels which can be opened are arranged within a vacuum interrupter chamber (3),
    and the two contact arrangements are formed via three contact pieces (7,8,9), wherein one of the contact pieces (7) is positively directly driven via the drive, while the other contact piece (8) is driven indirectly by spring force (5) and moves synchronously or lags in at least one operating direction, wherein the synchronous or lagging contact piece (8) is electrically floating, characterized in that the lagging contact piece is surrounded by an arrangement in the form of a cup and in that the arrangement which is in the form of a cup is integrally or at least firmly connected to the contact piece (8).
  2. Switching device according to Claim 1,
    characterized in that
    a common drive acts on the two contact arrangements (7,8).
  3. Switching device according to Claim 1 or 2,
    characterized in that
    the arrangement which is in the form of a cup is provided with an opening through which one contact piece (8) is secured, with this contact piece having effective contact faces on both sides.
  4. Switching device according to one of the preceding Claims 1 to 3,
    characterized in that
    a material whose conductivity is less than that of copper is used for the supply line (2).
  5. Switching device according to one of the preceding Claims 1 to 3,
    characterized in that
    at least one of the two supply lines (2) is made of copper.
  6. Switching device according to one of the preceding claims,
    characterized in that
    a further inner interrupter chamber is also located within the outer vacuum interrupter chamber and is arranged in it such that the two resultant contact arrangements are connected in series in the breaker gap.
  7. Switching device according to one of the preceding Claims 1 to 6,
    characterized in that
    at least one of the contact pieces (7,8,9) is made of a copper-chromium alloy.
  8. Switching device according to one of the preceding Claims 1 to 7,
    characterized in that
    one of the contact pieces (7,8,9) or the contact faces of one contact are made of a tungsten-copper alloy or of a tungsten-carbide-silver alloy, with the contact pieces of the other contact being made of a copper-chromium alloy.
EP08749242.7A 2007-05-03 2008-04-30 Switching device having a vacuum interrupter chamber Active EP2153452B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007021091A DE102007021091B4 (en) 2007-05-03 2007-05-03 Switchgear with vacuum switching chamber
PCT/EP2008/003494 WO2008135214A1 (en) 2007-05-03 2008-04-30 Switching device having a vacuum interrupter chamber

Publications (2)

Publication Number Publication Date
EP2153452A1 EP2153452A1 (en) 2010-02-17
EP2153452B1 true EP2153452B1 (en) 2017-05-31

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Application Number Title Priority Date Filing Date
EP08749242.7A Active EP2153452B1 (en) 2007-05-03 2008-04-30 Switching device having a vacuum interrupter chamber

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US (1) US8658933B2 (en)
EP (1) EP2153452B1 (en)
KR (1) KR101293578B1 (en)
CN (1) CN101675491B (en)
DE (1) DE102007021091B4 (en)
RU (1) RU2428761C2 (en)
WO (1) WO2008135214A1 (en)

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EP2460637B1 (en) 2010-12-03 2013-11-13 ABB Technology AG A push rod of a vacuum interrupter and method of manufacturing the same
US8471166B1 (en) * 2011-01-24 2013-06-25 Michael David Glaser Double break vacuum interrupter
EP2722859B2 (en) 2012-10-16 2019-08-28 ABB Schweiz AG Multi-block hybrid vacuum circuit breaker having in series connected vacuum interrupters
RU2584551C1 (en) * 2015-02-02 2016-05-20 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" High-voltage vacuum circuit breaker
US10796868B2 (en) 2019-02-11 2020-10-06 Eaton Intelligent Power Limited Thomson coil integrated moving contact in vacuum interrupter
DE102020212377A1 (en) * 2020-09-30 2022-03-31 Siemens Aktiengesellschaft Compact vacuum interrupter

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Also Published As

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CN101675491A (en) 2010-03-17
WO2008135214A1 (en) 2008-11-13
EP2153452A1 (en) 2010-02-17
WO2008135214A8 (en) 2010-01-28
US20100108643A1 (en) 2010-05-06
DE102007021091A1 (en) 2008-11-06
RU2009144765A (en) 2011-06-10
KR101293578B1 (en) 2013-08-13
CN101675491B (en) 2013-11-06
US8658933B2 (en) 2014-02-25
RU2428761C2 (en) 2011-09-10
DE102007021091B4 (en) 2012-02-23
KR20100034730A (en) 2010-04-01

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