EP0045904A1 - Arc-extinguishing chamber - Google Patents

Arc-extinguishing chamber Download PDF

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Publication number
EP0045904A1
EP0045904A1 EP81105993A EP81105993A EP0045904A1 EP 0045904 A1 EP0045904 A1 EP 0045904A1 EP 81105993 A EP81105993 A EP 81105993A EP 81105993 A EP81105993 A EP 81105993A EP 0045904 A1 EP0045904 A1 EP 0045904A1
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EP
European Patent Office
Prior art keywords
arc
contact point
fixed contact
contact piece
guide rail
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.)
Withdrawn
Application number
EP81105993A
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German (de)
French (fr)
Inventor
Erhard Ing. Grad. Runtsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri AG Germany
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri AG Germany
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brown Boveri und Cie AG Germany, BBC Brown Boveri AG Germany filed Critical Brown Boveri und Cie AG Germany
Publication of EP0045904A1 publication Critical patent/EP0045904A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346—Details concerning the arc formation chamber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/38—Electromagnetic mechanisms wherein the magnet coil also acts as arc blow-out device
    • 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
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/446—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts

Definitions

  • the invention relates to an arc quenching chamber for an electrical installation switching device, in particular for a circuit breaker, with at least one contact point formed from a movable and a fixed contact piece, the fixed contact piece of each contact point being fastened to a connecting piece which merges into an arc guide rail, and with a Iron sheet metal parts arranged on both sides of each contact point and covered with gas-releasing insulating material.
  • circuit breakers In recent years, the trend in circuit breakers has been towards higher switching capacities, lower switching and power dissipation, and higher nominal current ratings, so that the contact points are opened at ever higher current values.
  • arc extinguishing chambers of L maybe arc quenching plates and surrounds the arc splitter stack with tracking resistant sheathing, so that restriking can be prevented on the outer side of the arc splitter stack (comp. DE-OS 24 10 049).
  • a further step in this way can be found in DE-AS 26 16 825. Thereafter, at least one of the arc-quenching plates is covered with an insulating material that partially covers it. This measure also leads to the prevention of backfire outside the arc quenching plate package.
  • Another solution that was envisaged was to provide gas-emitting ceramic plates.
  • the present invention is therefore based on the object of designing an arc quenching chamber of the type mentioned at the outset in such a way that the magnetic blowing of the arc is improved, the quenching properties also being improved at the same time without the gas pressure becoming critical for the housing.
  • An advantageous embodiment of the invention can consist in that the sheet iron parts are designed as a tab of a bracket which is attached to the fixed contact piece.
  • the sheet iron parts can also be formed as lateral tabs on the arc guide rail.
  • the sheet iron parts are formed as a tab on the yoke and on the core of the magnetic release.
  • the insulating material is put on the tabs in the form of bag-like insulating material parts.
  • the insulating material preferably consists of an arc-resistant, gas-emitting material. Due to the pocket-like design of the insulating material, all-round, safe insulation of the sheet iron parts is achieved.
  • a circuit breaker which has a T-shape, has a switch lock 12, an electromagnetic release 14, a thermal release 16 in the form of a bimetal, indicated schematically in the interior of a housing 10, both of which are via the switch lock 12 or - as far as the electromagnetic release is concerned -
  • the fixed contact piece 26 is fastened to one leg 28 of an L-shaped connecting lug 30, the other leg 32 of the connecting lug receiving a connecting terminal 34.
  • the leg 28 is adjoined - overlapping it - by an approximately L-shaped arc baffle 36, which covers an arc baffle plate pack 38 consisting of a plurality of quenching plates. It can be seen from FIG. 1 that the arc extinguishing plates 38 are aligned perpendicular to a U-shaped current loop formed by the movable contact lever 22 and the arc guide plate 36.
  • Figure 2 shows the arc quenching chamber from above.
  • the fixed contact 26 is integrally formed on the terminal lug 30, and the movable contact piece 24 is attached to the contact lever 22 (not visible in FIG. 2).
  • the arc extinguishing plate 38a located above, which has a V-shaped recess 40 so that the arc can enter the interior of the arc extinguishing plate packet 38 more quickly.
  • two tabs 42 and 44 are formed on both sides, which take the contact point between them and form a U open towards the arc quenching plate package. These tabs completely cover the contact point when the switch is closed.
  • Pocket-like brackets 46 and 48 made of insulating material are placed around tabs 42 and 44, which insulating material consists of a gas-emitting substance. There is of course also the possibility of simply coating the two tabs 42 and 44 on all sides with the insulating material.
  • an additional, favorable-acting blow is achieved by releasing gas from the insulating material brackets 46 or 48, it also being possible to replace the ceramic plates used in known arc quenching chambers.
  • contact material is saved because, due to better blowing, the distance through the arc is smaller at the contact points.
  • the precious metal layer on the contact pieces can be made smaller.
  • FIGS. 3 and 4 show the corresponding design of the sheet iron parts as tabs 52 of the yoke wall 54 and as tabs 56 on the fixed core 58 of the magnetic release 14. All other parts are designed and shown in the same way as in FIGS. 1 and 2.

Abstract

The invention relates to an arc-extinguishing chamber for electrical installation switchgear, especially for a line protection circuit breaker. This has at least one contact point, formed by one moving and one fixed contact piece (24 and 26), the fixed contact piece (26) of each contact point being mounted on a connecting piece (28, 30) which turns into an arc guide rail (36). Sheet iron elements (42, 44; 52, 56), covered with a dielectric which releases gas, are fitted on both sides of each contact point. To make the arc run into the arc-extinguishing lamination stack (38) better, the sheet iron elements (42, 44) are fixedly connected to the fixed contact piece (26) of each contact point, the sheet iron elements expediently being integrally formed as side fins on the arc guide rail (36). It is also possible to form the sheet iron elements integrally as fins (52, 56) on the yoke (54) and on the magnetic core (56) of the magnetic trip release (14). <IMAGE>

Description

Die Erfindung betrifft eine Lichtbogenlöschkammer für ein elektrisches Installationsschaltgerät, insbesondere für einen Leitungsschutzschalter, mit wenigstens einer aus einem beweglichen und einem festen Kontaktstück gebildeten Kontaktstelle, wobei das feste Kontaktstück jeder Kontaktstelle an einem Anschlußstück, das in eine Lichtbogenleitschiene übergeht, befestigt ist, und mit einer beidseitig zu jeder Kontaktstelle angeordneten, mit gasabgebendem Isolierstoff bedeckten Eisenblechteilen.The invention relates to an arc quenching chamber for an electrical installation switching device, in particular for a circuit breaker, with at least one contact point formed from a movable and a fixed contact piece, the fixed contact piece of each contact point being fastened to a connecting piece which merges into an arc guide rail, and with a Iron sheet metal parts arranged on both sides of each contact point and covered with gas-releasing insulating material.

In den letzten Jahren geht der Trend bei Leitungsschutzschaltern zu höherem Schaltvermögen, zu kleinerer Schalt- und Verlustleistung sowie zu höheren Nennstromstärken, so daß das Öffnen der Kontaktstellen bei immer höheren Stromwerten erfolgt.In recent years, the trend in circuit breakers has been towards higher switching capacities, lower switching and power dissipation, and higher nominal current ratings, so that the contact points are opened at ever higher current values.

Zu diesem Zweck verwendet man Lichtbogenlöschkammern aus Lichtbogenlöschblechen und umgibt das Löschblechpaket mit kriechstromfesten Ummantelungen, so daß Rückzündungen auf der Außenseite des Löschblechpaketes verhindert werden (vergl. DE-OS 24 10 049).For this purpose one uses arc extinguishing chambers of L maybe arc quenching plates and surrounds the arc splitter stack with tracking resistant sheathing, so that restriking can be prevented on the outer side of the arc splitter stack (comp. DE-OS 24 10 049).

Ein weiterer Schritt auf diesem Weg ist der DE-AS 26 16 825 zu entnehmen. Danach ist wenigstens eines der Lichtbogenlöschbleche mit einem dieses teilweise abdeckenden isolierenden Material belegt. Diese Maßnahme führt ebenfalls zur Verhinderung von Rückzündungen außerhalb des Lichtbogenlöschblechpaketes.A further step in this way can be found in DE-AS 26 16 825. Thereafter, at least one of the arc-quenching plates is covered with an insulating material that partially covers it. This measure also leads to the prevention of backfire outside the arc quenching plate package.

Eine weitere Lösung, die ins Auge gefaßt wurde, bestand darin, Platten aus gasabgebender Keramik vorzusehen.Another solution that was envisaged was to provide gas-emitting ceramic plates.

Alle diese Anordnungen brachten zwar relativ kleine Verbesserungen; die magnetische Beblasung des Lichtbogens allerdings wurde mit diesen Maßnahmen nicht erreicht. Aus der DEd-AS 27 16 619 ist ein strombegrenzender Leitungsschutzschalter mit Maßnahmen zur Erhöhung der Laufgeschwindigkeit des Schaltlichtbogens bekanntgeworden. Diese Maßnahmen bestehen darin, auf einer Seite der Kontaktstelle eine Isolierstoffplatte aus Keramik und auf der anderen Seite der Kontaktstelle eine Isolierstoffplatte aus gasabgebendem Material mit einer'Eiseneinlage anzuordnen. Hierdurch wird der Lichtbogenlauf in die Löschkammer beschleunigt und darüber hinaus wird eine Gasabgabe zur Kühlung des Lichtbogens erreicht. Würde man zwei Isolierstoffplatten mit Eiseneinlage verwenden, dann würde der Gasdruck für das Gehäuse kritisch.All of these arrangements brought relatively minor improvements; however, the magnetic blowing of the arc was not achieved with these measures. From DEd-AS 27 16 619 a current-limiting circuit breaker with measures to increase the running speed of the switching arc has become known. These measures consist of arranging an insulating plate made of ceramic on one side of the contact point and an insulating plate made of gas-emitting material with an iron insert on the other side of the contact point. As a result, the arc run into the quenching chamber is accelerated and, moreover, gas is released to cool the arc. If you were to use two insulating plates with an iron insert, the gas pressure would be critical for the housing.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, eine Lichtbogenlöschkammer der eingangs genannten Art so auszubilden, daß die magnetische Beblasung des Lichtbogens verbessert wird, wobei gleichzeitig auch die Löscheigenschaften verbessert werden, ohne daß der Gasdruck kritisch für das Gehäuse wird.The present invention is therefore based on the object of designing an arc quenching chamber of the type mentioned at the outset in such a way that the magnetic blowing of the arc is improved, the quenching properties also being improved at the same time without the gas pressure becoming critical for the housing.

Diese Aufgabe wird bei einer ersten Lösung erfindungsgemäß dadurch gelöst, daß die Eisenblechteile mit dem festen Kontaktstück jeder Kontaktstelle fest verbunden sind.This object is achieved according to the invention in a first solution in that the sheet iron parts are firmly connected to the fixed contact piece of each contact point.

Eine vorteilhafte Ausgestaltung der Erfindung kann darin bestehen, daß die Eisenblechteile als Lappen eines Bügels ausgeführt sind, der an dem festen Kontaktstück befestigt ist.An advantageous embodiment of the invention can consist in that the sheet iron parts are designed as a tab of a bracket which is attached to the fixed contact piece.

Die Eisenblechteile können auch als seitliche Lappen an der Lichtbogenleitschiene angeformt sein.The sheet iron parts can also be formed as lateral tabs on the arc guide rail.

Eine weitere vorteilhafte Lösung der Aufgabe kann darin bestehen, daß die Eisenblechteile als Lappen am Joch und am Kern des Magnetauslösers angeformt sind.Another advantageous solution to the problem can be that the sheet iron parts are formed as a tab on the yoke and on the core of the magnetic release.

Eine Vereinfachung dieser Maßnahme kann dadurch erreicht werden, daß das Isoliermaterial in Form von taschenartigen Isolierstoffteilen auf die Lappen aufgesteckt wird. Das Isolierstoffmaterial besteht dabei vorzugsweise aus einem lichtbogenfesten, gasabgebenden Material. Durch die taschenartige Ausbildung des Isoliermaterials wird eine allseitige, sichere Isolierung der Eisenblechteile erreicht.A simplification of this measure can be achieved in that the insulating material is put on the tabs in the form of bag-like insulating material parts. The insulating material preferably consists of an arc-resistant, gas-emitting material. Due to the pocket-like design of the insulating material, all-round, safe insulation of the sheet iron parts is achieved.

Mit dieser Ausgestaltung werden folgende Vorteile erreicht:

  • zum einen wird die magnetische Beblasung des Lichtbogens verbessert, wodurch der Lichtbogen schneller von der Kontaktstelle weg und in die Lichtbogenlöschbleche einläuft und damit eine Verbesserung des Abschaltvorganges bewirkt. Darüberhinaus wird durch die Gasabgabe der U-förmigen Isolierstoffbügel bzw. des Isolierstoffmaterials eine zusätzliche, lichtbogenlöschende Wirkung erzielt.Durch den Isolierstoff wird ferner mindestens zum Teil die sonst erforderliche Keramik ersetzt und es besteht der Vorteil, daß durch die bessere Beblasung des Lichtbogens der Abbrand geringer wird, wodurch die Edelmetallauflage an den Kontaktstücken selbst verkleinert werden kann.
The following advantages are achieved with this configuration:
  • on the one hand, the magnetic blowing of the arc is improved, as a result of which the arc runs faster away from the contact point and into the arc-quenching plates and thus improves the shutdown process. In addition, the gas release of the U-shaped insulating material or the insulating material achieves an additional arc-extinguishing effect. The insulating material also at least partially replaces the ceramics that are otherwise required, and there is the advantage that the burn-off is less due to the better blowing of the arc is, whereby the precious metal layer on the contact pieces themselves can be reduced.

Aufgrund der Ausgestaltung wird auch vermieden, daß der Gasdruck im inneren des Gehäuses einen kritischen Wert erreicht. Anhand der Zeichnungen, in denen zwei Ausführungsbeispiele der Erfindung dargestellt sind, soll die Erfindung und ihre vorteilhaften Ausgestaltungen und Verbesserungen näher erläutert werden.Due to the design, it is also avoided that the gas pressure inside the housing reaches a critical value. The invention and its advantageous refinements and improvements will be explained in more detail with reference to the drawings, in which two exemplary embodiments of the invention are shown.

Es zeigen:

  • Fig. 1 und 3 Einblicke in zwei Leitungsschutzschalter mit erfindungsgemäßen Lichtbogenlöschkammern und
  • Fig. 2 und 4 Teilansichten der Schalter gem. den Fig. 1 und 3 entsprechend Fig. 1.
Show it:
  • 1 and 3 insights into two circuit breakers with arc quenching chambers according to the invention and
  • 2 and 4 partial views of the switch acc. 1 and 3 corresponding to Fig. 1st

Ein Leitungsschutzschalter, der eine T-Form aufweist, besitzt im Inneren eines Gehäuses 10 schematisch angedeutet ein Schaltschloß 12, einen elektromagnetischen Auslöser 14, einen thermischen Auslöser 16 in Form eines Bimetalls, welche beide über das Schaltschloß 12 oder - was den elektromagnetischen Auslöser betrifft-über einen Schlaganker 18 unmittelbar einen bei 20 drehbar aufgelagerten Kontakthebel 22 im Uhrzeigersinn, ,Pfeilrichtung F, verdrehen, wobei hierdurch ein am beweglichen Kontakthebel angeformtes bewegliches Kontaktstück 24 von einem Festkontaktstück 26 getrennt wird. Das feste Kontaktstück 26 ist an einem Schenkel 28 einer L-förmigen Anschlußfahne 30 befestigt, wobei der andere Schenkel 32 der Anschlußfahne eine Anschlußklemme 34 aufnimmt. An den Schenkel 28 schließt sich - diesen überlappend - ein annähernd L-förmiges Lichtbogenleitblech 36 an, welches ein aus mehreren Löschblechen bestehendes Lichtbogenlöschblechpaket 38 überdeckt. Man erkennt aus der Figur 1, daß die Lichtbogenlöschbleche 38 senkrecht zu einer durch den beweglichen Kontakthebel 22 und das Lichtbogenleitblech 36 gebildeten U-förmigen Stromschleife ausgerichtet sind.A circuit breaker, which has a T-shape, has a switch lock 12, an electromagnetic release 14, a thermal release 16 in the form of a bimetal, indicated schematically in the interior of a housing 10, both of which are via the switch lock 12 or - as far as the electromagnetic release is concerned - Rotate a contact lever 22, which is rotatably mounted at 20, in the clockwise direction, arrow direction F, via a striking anchor 18, thereby separating a movable contact piece 24 formed on the movable contact lever from a fixed contact piece 26. The fixed contact piece 26 is fastened to one leg 28 of an L-shaped connecting lug 30, the other leg 32 of the connecting lug receiving a connecting terminal 34. The leg 28 is adjoined - overlapping it - by an approximately L-shaped arc baffle 36, which covers an arc baffle plate pack 38 consisting of a plurality of quenching plates. It can be seen from FIG. 1 that the arc extinguishing plates 38 are aligned perpendicular to a U-shaped current loop formed by the movable contact lever 22 and the arc guide plate 36.

Die Figur 2 zeigt die Lichtbogenlöschkammer von oben. Der feste Kontakt 26 ist an der Anschlußfahne 30 angeformt, und das bewegliche Kontaktstück 24 ist an dem in der Figur 2 nicht sichtbaren Kontakthebel 22 angebracht. Man erkennt ferner das oben liegende Lichtbogenlöschblech 38a, welches eine V-förmige Ausnehmung 40 aufweist, so daß der Lichtbogen schneller ins Innere des Lichtbogenlöschblechpaketes 38 einlaufen kann. An der Lichtbogenleitschiene 36 sind beidseitig zwei Lappen 42 und 44 angeformt, die die Kontaktstelle zwischen sich nehmen und ein hin zu dem Lichtbogenlöschblechpaket offenes U bilden. Diese Lappen überdecken die Kontaktstelle im geschlossenen Zustand des Schalters vollständig. Um die Lappen 42 und 44 sind taschenartige Bügel 46 bzw. 48 aus Isolierstoffmaterial gelegt, welches Isolierstoffmaterial aus einem gasabgebenden Stoff besteht. Es besteht natürlich auch die Möglichkeit, die beiden Lappen 42 und 44 einfach mit dem Isolierstoffmaterial allseitig zu beschichten.Figure 2 shows the arc quenching chamber from above. The fixed contact 26 is integrally formed on the terminal lug 30, and the movable contact piece 24 is attached to the contact lever 22 (not visible in FIG. 2). One can also see the arc extinguishing plate 38a located above, which has a V-shaped recess 40 so that the arc can enter the interior of the arc extinguishing plate packet 38 more quickly. On the arc guide rail 36, two tabs 42 and 44 are formed on both sides, which take the contact point between them and form a U open towards the arc quenching plate package. These tabs completely cover the contact point when the switch is closed. Pocket-like brackets 46 and 48 made of insulating material are placed around tabs 42 and 44, which insulating material consists of a gas-emitting substance. There is of course also the possibility of simply coating the two tabs 42 and 44 on all sides with the insulating material.

Mit der erfindungsgemäßen Ausgestaltung wird eine zusätzliche, günstig wirkende Blasung durch Gasabgabe der Isolierstoffbügel 46 bzw. 48 erzielt, wobei auch die bei bekannten Lichtbogenlöschkammern verwendeten Keramikplatten ersetzt werden können. Außerdem wird Kontaktmaterial eingespart, weil durch bessere Blasung der Abstand durch den Lichtbogen an den Kontaktstellen geringer ist. Schließlich kann die Edelmetallauflage auf den Kontaktstücken kleiner gemacht werden.With the configuration according to the invention, an additional, favorable-acting blow is achieved by releasing gas from the insulating material brackets 46 or 48, it also being possible to replace the ceramic plates used in known arc quenching chambers. In addition, contact material is saved because, due to better blowing, the distance through the arc is smaller at the contact points. Finally, the precious metal layer on the contact pieces can be made smaller.

Figur 3 und 4 zeigt die entsprechende Ausbildung der Eisenblechteile als Lappen 52 der Jochwand 54 und als Lappen 56 am festen Kern 58 des Magnetauslösers 14. Alle anderen Teile sind gleich ausgeführt und dargestellt wie in den Figuren 1 und 2.FIGS. 3 and 4 show the corresponding design of the sheet iron parts as tabs 52 of the yoke wall 54 and as tabs 56 on the fixed core 58 of the magnetic release 14. All other parts are designed and shown in the same way as in FIGS. 1 and 2.

Claims (5)

1. Lichtbogenlöschkammer für ein elektrisches Installationsgerät, insbesondere für einen Leitungsschutzschalter, mit wenigstens einer aus einem beweglichen und einem festen Kontaktstück gebildeten Kontaktstelle, wobei das feste Kontaktstück jeder Kontaktstelle an einem Anschlußstück, das in eine Lichtbogenleitschiene übergeht, befestigt ist, und mit beidseitig zu jeder Kontaktstelle angeordneten, mit gasabgebendem Isolierstoff bedeckten Eisenblechteilen, dadurch gekennzeichnet, daß die Eisenblechteile (42, 44) mit dem festen Kontaktstück (26) jeder Kontaktstelle fest verbunden sind.1. Arc extinguishing chamber for an electrical installation device, in particular for a circuit breaker, with at least one contact point formed from a movable and a fixed contact piece, the fixed contact piece of each contact point being fastened to a connecting piece which merges into an arc guide rail, and with both sides of each Iron sheet metal parts arranged with a contact point and covered with gas-releasing insulating material, characterized in that the iron sheet metal parts (42, 44) are firmly connected to the fixed contact piece (26) of each contact point. 2. Lichtbogenlöschkammer nach Anspruch 1, dadurch gekennzeichnet, daß die Eisenblechteile (42, 44) als Lappen eines Bügels (36) ausgeführt sind, der an dem festen Kontaktstück (26) befestigt ist.2. Arc quenching chamber according to claim 1, characterized in that the sheet iron parts (42, 44) are designed as a tab of a bracket (36) which is fixed to the fixed contact piece (26). 3. Lichtbogenlöschkammer nach Anspruch 1, dadurch gekennzeichnet, daß die Eisenblechteile als seitliche Lappen (42, 44) der Lichtbogenleitschiene (36) angeformt sind.3. Arc quenching chamber according to claim 1, characterized in that the sheet iron parts are formed as side tabs (42, 44) of the arc guide rail (36). 4. Lichtbogenlöschkammer für ein elektrisches Installationsgerät, insbesondere für einen Leitungsschutzschalter, mit wenigstens einer aus einem beweglichen und einem festen Kontaktstück gebildeten Kontaktstelle, wobei das feste Kontaktstück jeder Kontaktstelle an einem Anschlußstück, das in eine Lichtbogenleitschiene übergeht, befestigt ist, und mit beidseitig zu jeder Kontaktstelle angeordneten, mit gasabgebendem Isolierstoff bedeckten Eisenblechteilen mit einem ein Joch und einen Magnetkern aufweisenden Magnetauslöser, dadurch gekennzeichnet, daß die Eisenblechteile (52, 56) als Lappen am Joch (54) und am Magnetkern (58) des Magnetauslösers angebracht sind.4. Arc quenching chamber for an electrical installation device, in particular for a circuit breaker, with at least one contact point formed from a movable and a fixed contact piece, the fixed contact piece of each contact point at a connector which is in a Arc guide rail passes over, is fastened, and with iron sheet metal parts arranged on both sides to each contact point and covered with gas-releasing insulating material, with a magnetic release having a yoke and a magnetic core, characterized in that the iron sheet parts (52, 56) act as tabs on the yoke (54) and on the magnetic core (58) of the magnetic trigger are attached. 5. Lichtbogenlöschkammer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Isolierstoff in Form von taschenartigen Isolierstoffteilen (46, 48) auf die Lappen (42, 44; 52, 56) aufgesteckt wird.5. Arc quenching chamber according to one of claims 1 to 4, characterized in that the insulating material in the form of pocket-like insulating parts (46, 48) is plugged onto the tabs (42, 44; 52, 56).
EP81105993A 1980-08-12 1981-07-30 Arc-extinguishing chamber Withdrawn EP0045904A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3030429 1980-08-12
DE19803030429 DE3030429A1 (en) 1980-08-12 1980-08-12 ARC CHAMBER

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EP0045904A1 true EP0045904A1 (en) 1982-02-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158124A2 (en) * 1984-04-11 1985-10-16 Asea Brown Boveri Aktiengesellschaft Arc-extinguishing device for electrical switches
CN103000466A (en) * 2011-09-15 2013-03-27 西门子公司 Breaker and breaker arc chamber component

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339399A1 (en) * 1983-10-29 1985-05-09 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co, 8500 Nürnberg SELF-SWITCH WITH ARC BLOW FIELD
DE3824027A1 (en) * 1988-07-15 1990-01-18 Asea Brown Boveri ELECTRICAL SWITCHGEAR
DE4445419A1 (en) * 1994-12-20 1996-06-27 Abb Patent Gmbh Electrical load protection switch with electromagnetic release
DE102011002714B4 (en) * 2011-01-14 2021-01-14 Siemens Aktiengesellschaft Circuit breaker
DE102011008832A1 (en) * 2011-01-19 2012-07-19 Abb Ag Service switching device

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DE2353830A1 (en) * 1972-10-30 1974-05-09 Legrand Sa DISCONNECTOR IMPROVEMENTS
DE2704160A1 (en) * 1977-02-02 1978-08-03 Bbc Brown Boveri & Cie Electrical switch wire arc chamber - has chamber enclosing plates giving off gas aiding arc quenching
DE2716619B1 (en) * 1977-04-15 1978-09-07 Licentia Gmbh Current-limiting circuit breaker with measures to increase the running speed of the switching arc
EP0028740A1 (en) * 1979-11-01 1981-05-20 Fuji Electric Co. Ltd. Switchgear with a contact arrangement
FR2475290A1 (en) * 1980-01-31 1981-08-07 Merlin Gerin Electrode chamber for LV isolating switch - has two-part arc guide plates and parallel metallic deionising electrodes

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* Cited by examiner, † Cited by third party
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GB369740A (en) * 1931-03-17 1932-03-31 John Westmoreland Record Improvements in or relating to electric circuit breakers or like circuit rupturing apparatus
FR1247937A (en) * 1958-04-08 1960-12-09 High breaking capacity circuit breaker
FR1366120A (en) * 1963-05-28 1964-07-10 App S Thermoflex Etablissement Magnetic blowing device for the breaking arc of an electric switch
FR93908E (en) * 1967-02-08 1969-06-06 Karel Kesl Improvements to the blowing chambers intended for circuit breakers or contactors with high breaking capacity.
DE1790089A1 (en) * 1967-09-11 1972-01-20 Lgz Landis & Gyr Eng Ag Arc extinguishing chamber in narrow design for switches with high switching capacity
DE2353830A1 (en) * 1972-10-30 1974-05-09 Legrand Sa DISCONNECTOR IMPROVEMENTS
FR2204872A1 (en) * 1972-10-30 1974-05-24 Legrand Sa
DE2704160A1 (en) * 1977-02-02 1978-08-03 Bbc Brown Boveri & Cie Electrical switch wire arc chamber - has chamber enclosing plates giving off gas aiding arc quenching
DE2716619B1 (en) * 1977-04-15 1978-09-07 Licentia Gmbh Current-limiting circuit breaker with measures to increase the running speed of the switching arc
EP0028740A1 (en) * 1979-11-01 1981-05-20 Fuji Electric Co. Ltd. Switchgear with a contact arrangement
FR2475290A1 (en) * 1980-01-31 1981-08-07 Merlin Gerin Electrode chamber for LV isolating switch - has two-part arc guide plates and parallel metallic deionising electrodes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158124A2 (en) * 1984-04-11 1985-10-16 Asea Brown Boveri Aktiengesellschaft Arc-extinguishing device for electrical switches
EP0158124A3 (en) * 1984-04-11 1988-03-09 Brown, Boveri & Cie Aktiengesellschaft Extinguishing device for electrical switches
CN103000466A (en) * 2011-09-15 2013-03-27 西门子公司 Breaker and breaker arc chamber component

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