EP0681737B1 - Extinguishing stack for an arc extinguishing chamber - Google Patents
Extinguishing stack for an arc extinguishing chamber Download PDFInfo
- Publication number
- EP0681737B1 EP0681737B1 EP94901686A EP94901686A EP0681737B1 EP 0681737 B1 EP0681737 B1 EP 0681737B1 EP 94901686 A EP94901686 A EP 94901686A EP 94901686 A EP94901686 A EP 94901686A EP 0681737 B1 EP0681737 B1 EP 0681737B1
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- European Patent Office
- Prior art keywords
- arc
- quenching
- web
- plates
- exit openings
- 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.)
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- 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
- H01H9/342—Venting arrangements for arc chutes
Definitions
- the invention relates to a quenching plate package for an arc quenching chamber for switches, in particular for circuit breakers, consisting of quenching plates arranged in parallel or in a fan shape, a holding part made of insulating material with a U-shaped cross-sectional shape, in which the quenching plates are fixed in their position and which is opposite the arc entry Web arc exit openings, which are each arranged between adjacent quenching plates.
- Quenching plate package for arc quenching chambers have been proposed in the most varied of embodiments and have the purpose of quickly guiding the arc which arises when switching, in particular the arc which arises when circuit breakers are triggered when the contacts open, the arc forming between the opening contacts partly through the magnetic one Field of switching elements, but partly blown towards the quenching plates by the suction effect of the quenching plate package, then the hot gases between the quenching plates are cooled and led to the arc exit openings of the arc quenching chamber and through these to the blow-off opening of the switch.
- Extinguishing sheet package for arc quenching chambers also have the task of dividing the arc and thus increasing the arc voltage.
- a problem with the known quenching plate package for arc quenching chambers is also that after the ionized gases have emerged from the arc exit openings, so-called external flashovers occur between adjacent arc exit openings. Such external flashovers can be prevented by keeping the arc exit openings small. Small arc discharge openings have the disadvantage, however, that they hinder the gas escape and are fluidically unfavorable.
- An arc quenching chamber is known from SU-836 691, the arc outlet openings of which are closed on the outside by metal grids to which different voltages are applied in order to accelerate the recombination of ions.
- These surrounding walls are provided around the metal grids in order to electrically isolate the metal grids from one another.
- the invention has for its object to propose a quenching plate package for an arc quenching chamber, which improves the blowing off of the exhaust gases to the blow-off openings of the switch without impairing their effect and function and prevents flashovers.
- this is achieved in a generic quenching plate packet in that at least one rib, which separates adjacent arc exit openings from the outside of the web of the U-shaped holding part, projects outwards, and that the rib is formed in a serpentine shape and essentially opposite regions of adjacent arc exit openings surrounds over half of its circumference.
- the measure according to the invention results in improved flow conditions, so that the arc gases are more easily controlled and blown off better can.
- the at least one rib which projects from the web on the outside of the web according to the invention, separates adjacent arc exit openings on the outside of the web, so that the air gap between the arc exit openings of adjacent chambers (provided between two adjacent quenching plates) is increased. Overturns are thus prevented even in the case of larger-sized and therefore aerodynamically favorable arc exit openings, although the arc exit openings are provided in the web of the U-shaped molded part.
- the at least one rib does not completely surround the light exit openings in the web of the U-shaped molded part, but essentially over its half circumference. It is only important that the air gap between adjacent arc exit openings is kept so large that arcing is prevented.
- An advantageous embodiment of the invention also extends to an embodiment of the quenching plate package for an arc quenching chamber, in which it is provided that two rows of arc exit openings are provided in the web of the U-shaped holding part. If two ribs are provided in this embodiment, it can be provided according to the invention that one rib runs mirror-symmetrically to the other rib. This results in a total of three channels on the outside of the web of the holding part which has the arc outlet openings (one between the ribs and one each between a rib and the adjacent wall of the housing of the switch into which the quenching plate package for the arc quenching chamber is inserted), through which the Exhaust gases can be discharged without the risk of flashovers.
- the available passage cross section of the outlet openings for the arc or the arc gases when blowing off from the quenching plate package for the arc quenching chamber can be increased without the risk of outside flashovers if, according to a proposal of the invention, it is provided that the arc exit openings are designed as elongated holes, the longer extension of which runs parallel to the quenching plates.
- the at least one rib is preferably formed in one piece with the web of the U-shaped holding part.
- a simple construction of the quenching plate package according to the invention for the arc quenching chamber is obtained if it is provided that the quenching plates on their longitudinal edges project from these and lie in the plane of the quenching plates, strip-shaped projections which have correspondingly shaped openings in the legs of the U-shaped holding part intervention.
- An embodiment has proven itself in which it is provided that protrusions carried by the extinguishing plates protrude into all openings provided in the legs of the U-shaped holding part.
- the quenching plate packet 1 for an arc quenching chamber has a plurality of quenching plates 2 which are arranged parallel to one another. Each quenching plate 2 has an essentially V-shaped slot 3 on the arc entry side.
- each baffle plate 2 has two strip-shaped projections 5 and 6 on both longitudinal side edges, which in corresponding openings 7 and 8 are used in the legs 9 and 10 of the holding part 4. Apart from the openings 7 and 8 which are filled by the projections 5 and 6 of the extinguishing plates 2 and are therefore essentially closed, the holding part 4 has no openings in its legs 9 and 10.
- arc exit openings 14 are provided in web 11 of holding part 4 in two rows 12 and 13. 4, the arc exit openings 14 have the shape of elongated holes, the longer extension of which is aligned parallel to the quenching plates 2.
- ribs 15 and 16 are provided, which, as also shown in FIG. 4, run in a serpentine shape and surround each of the arc exit openings 14 essentially over half their circumference.
- Fig. 4 also shows that the ribs 15 and 16 are arranged mirror-symmetrically to the longitudinal center plane 17 of the quenching plate package for an arc quenching chamber.
- serpentine ribs 15 and 16 which protrude from the outside of the web 11 of the holding part 4 and partially surround the arc exit openings 14, ribs of a different shape can also be provided.
- ribs are conceivable that are ring-shaped or partially ring-shaped. It is only essential that the air gap between adjacent arc exit openings is increased by the rib or the ribs.
- the invention can be represented as follows, for example:
- a quenching plate packet 1 for an arc quenching chamber consists of several quenching plates 2, which are inserted in a U-shaped holding part 4 made of insulating material.
- Arc exit openings 14 are provided in the web 11 of the holding part 4 opposite the arc entrance.
- the web 11 carries on its outside two serpentine ribs 15, 16, which enlarge the air gap between adjacent arc exit openings 14. This prevents external flashovers, although the arc outlet openings 14 can be dimensioned so large that the outflow of the ionized arc gases from the quenching plate packet 1 for an arc quenching chamber is not hindered.
- a total of three channels for the gas flow are formed by the ribs 15, 16 together with the walls of the housing in which the quenching plate packet 1 is accommodated. This further facilitates the discharge of the arc gases.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Toys (AREA)
- Vacuum Packaging (AREA)
- Carbon And Carbon Compounds (AREA)
- Basic Packing Technique (AREA)
Abstract
Description
Die Erfindung betrifft ein Löschblechpaket für eine Lichtbogenlöschkammer für Schalter, insbesondere für Leitungsschutzschalter, bestehend aus parallel oder fächerförmig angeordneten Löschblechen, einem Halteteil aus Isolierstoff mit U-förmiger Querschnittsform, in dem die Löschbleche in ihrer Lage fixiert eingesetzt sind und der in seinem dem Lichtbogeneintritt gegenüberliegenden Steg Lichtbogenaustrittsöffnungen, die jeweils zwischen benachbarten Löschblechen angeordnet sind, aufweist.The invention relates to a quenching plate package for an arc quenching chamber for switches, in particular for circuit breakers, consisting of quenching plates arranged in parallel or in a fan shape, a holding part made of insulating material with a U-shaped cross-sectional shape, in which the quenching plates are fixed in their position and which is opposite the arc entry Web arc exit openings, which are each arranged between adjacent quenching plates.
Löschblechpaket für Lichtbogenlöschkammern sind in den verschiedensten Ausführungsformen vorgeschlagen worden und haben den Zweck, den beim Schalten, insbesondere den beim Auslösen von Leitungsschutzschaltern beim Öffnen der Kontakte entstehenden Lichtbogen rasch von den Kontaktstücken wegzuführen, wobei der sich zwischen den öffnenden Kontakten bildende Lichtbogen teils durch das magnetische Feld der Schaltglieder, teils aber durch die Saugwirkung des Löschblechpaketes zu den Löschblechen hingeblasen, dann die heißen Gase zwischen den Löschblechen gekühlt und zu den Lichtbogenaustrittsöffnungen der Lichtbogenlöschkammer und durch diese weiter zu der Abblasöffnung des Schalters geführt werden.Quenching plate package for arc quenching chambers have been proposed in the most varied of embodiments and have the purpose of quickly guiding the arc which arises when switching, in particular the arc which arises when circuit breakers are triggered when the contacts open, the arc forming between the opening contacts partly through the magnetic one Field of switching elements, but partly blown towards the quenching plates by the suction effect of the quenching plate package, then the hot gases between the quenching plates are cooled and led to the arc exit openings of the arc quenching chamber and through these to the blow-off opening of the switch.
Löschblechpaket für Lichtbogenlöschkammern haben auch die Aufgabe, den Lichtbogen zu unterteilen und so die Lichtbogenspannung zu erhöhen.Extinguishing sheet package for arc quenching chambers also have the task of dividing the arc and thus increasing the arc voltage.
Ein Problem bei den bekannten Löschblechpaket für Lichtbogenlöschkammern besteht auch darin, daß nach dem Austritt der ionisierten Gase aus den Lichtbogenaustrittsöffnungen sogenannte Außenüberschläge zwischen benachbarten Lichtbogenaustrittsöffnungen auftreten. An sich können solche Außenüberschläge verhindert werden, indem die Lichtbogenaustrittsöffnungen klein gehalten werden. Kleine Lichtbogenaustrittsöffnungen haben aber den Nachteil, daß sie den Gasaustritt behindern und strömungstechnisch ungünstig sind.A problem with the known quenching plate package for arc quenching chambers is also that after the ionized gases have emerged from the arc exit openings, so-called external flashovers occur between adjacent arc exit openings. Such external flashovers can be prevented by keeping the arc exit openings small. Small arc discharge openings have the disadvantage, however, that they hinder the gas escape and are fluidically unfavorable.
Es ist daher schon vorgeschlagen worden, die Lichtbogenaustrittsöffnungen in den Schenkeln des U-förmigen Formteils vorzusehen.It has therefore already been proposed to provide the arc exit openings in the legs of the U-shaped molded part.
Ein Beispiel für ein Löschblechpaket für eine Lichtbogenlöschkammer ist in der AT-B-343 212 beschrieben. Bei dieser bekannten Lichtbogenlöschkammer sind die Lichtbogenaustrittsöffnungen ausschließlich in den Schenkeln des die Löschbleche haltenden U-förmigen Halteteils aus Isolierstoff vorgesehen. Bei dieser Ausführungsform ergeben sich aber insbesondere bei schmal gebauten Schaltern strömungstechnische Schwierigkeiten beim Abblasen der Abgase aus der Lichtbogenlöschkammer zu den Abblasöffnungen im Gehäuse des Schalters.An example of a quenching plate package for an arc quenching chamber is described in AT-B-343 212. In this known arc quenching chamber, the arc exit openings are provided exclusively in the legs of the U-shaped holding part made of insulating material and holding the quenching plates. In this embodiment, however, there are flow-related difficulties, in particular in the case of narrow switches, in blowing off the exhaust gases from the arc quenching chamber to the blow-off openings in the housing of the switch.
Aus der SU-836 691 ist eine Lichtbogenlöschkammer bekannt, deren Lichtbogenaustrittsöffnungen außen durch Metallgitter verschlossen sind, an die unterschiedliche Spannungen angelegt werden, um die Rekombination von Ionen zu beschleunigen. Rings um die Metallgitter sind diese umgebenden Wände vorgesehen, um die Metallgitter voneinander elektrisch zu isolieren.An arc quenching chamber is known from SU-836 691, the arc outlet openings of which are closed on the outside by metal grids to which different voltages are applied in order to accelerate the recombination of ions. These surrounding walls are provided around the metal grids in order to electrically isolate the metal grids from one another.
Der Erfindung liegt die Aufgabe zugrunde, ein Löschblechpaket für eine Lichtbogenlöschkammer vorzuschlagen, das ohne ihre Wirkung und Funktion zu beeinträchtigen, das Abblasen der Abgase zu den Abblasöffnungen des Schalters verbessert und Außenüberschläge verhindert.The invention has for its object to propose a quenching plate package for an arc quenching chamber, which improves the blowing off of the exhaust gases to the blow-off openings of the switch without impairing their effect and function and prevents flashovers.
Erfindungsgemäß wird dies bei einem gattungsgemäßen Löschblechpacket dadurch erreicht, daß von der Außenseite des Steges des U-förmigen Halteteils wenigstens eine Rippe, die benachbarte Lichtbogenaustrittsöffnungen voneinander trennt, nach außen absteht, und daß die Rippe schlangenlinienförmig ausgebildet ist und jeweils gegenüberliegende Bereiche benachbarter Lichtbogenaustrittsöffnungen im wesentlichen über ihren halben Umfang umgibt.According to the invention, this is achieved in a generic quenching plate packet in that at least one rib, which separates adjacent arc exit openings from the outside of the web of the U-shaped holding part, projects outwards, and that the rib is formed in a serpentine shape and essentially opposite regions of adjacent arc exit openings surrounds over half of its circumference.
Durch die erfindungsgemäße Maßnahme ergeben sich im Gegensatz zum Löschblechpaket für eine Lichtbogenlöschkammer der AT-B-343 212 verbesserte Strömungsverhältnisse, so daß die Lichtbogengase leichter beherrscht und besser abgeblasen werden können.In contrast to the quenching plate package for an arc quenching chamber of AT-B-343 212, the measure according to the invention results in improved flow conditions, so that the arc gases are more easily controlled and blown off better can.
Durch die gemäß der Erfindung an der Außenseite des Steges von diesem abstehend vorgesehene, wenigstens eine Rippe werden benachbarte Lichtbogenaustrittsöffnungen an der Außenseite des Steges voneinander getrennt, so daß die Luftstrecke zwischen den Lichtbogenaustrittsöffnungen benachbarter (zwischen jeweils zwei benachbarten Löschblechen vorgesehener Kammern) vergrößert ist. Außenüberschläge werden so auch bei größer dimensionierten und daher strömungsgünstigen Lichtbogenaustrittsöffnungen verhindert, obwohl die Lichtbogenaustrittsöffnungen im Steg des U-förmigen Formteiles vorgesehen sind.The at least one rib, which projects from the web on the outside of the web according to the invention, separates adjacent arc exit openings on the outside of the web, so that the air gap between the arc exit openings of adjacent chambers (provided between two adjacent quenching plates) is increased. Overturns are thus prevented even in the case of larger-sized and therefore aerodynamically favorable arc exit openings, although the arc exit openings are provided in the web of the U-shaped molded part.
Dabei ist es von Vorteil, daß die wenigstens eine Rippe die Lichtaustrittsöffnungen im Steg des U-förmigen Formteils nicht zur Gänze, sondern im wesentlichen über ihren halben Umfang umgibt. Wesentlich ist nur, daß die Luftstrecke zwischen benachbarten Lichtbogenaustrittsöffnungen so groß gehalten wird, daß Außenüberschläge hintangehalten werden.It is advantageous that the at least one rib does not completely surround the light exit openings in the web of the U-shaped molded part, but essentially over its half circumference. It is only important that the air gap between adjacent arc exit openings is kept so large that arcing is prevented.
Eine vorteilhafte Ausgestaltung der Erfindung erstreckt sich auch auf eine Ausführungsform des Löschblechpaketes für eine Lichtbogenlöschkammer, bei dem vorgesehen ist, daß im Steg des U-förmigen Halteteils zwei Reihen von Lichtbogenaustrittsöffnungen vorgesehen sind. Wenn bei dieser Ausführungsform zwei Rippen vorgesehen sind, kann gemäß der Erfindung vorgesehen sein, daß die eine Rippe zur anderen Rippe spiegelsymmetrisch verläuft. Dadurch ergeben sich an der Außenseite des die Lichtbogenaustrittsöffnungen aufweisenden Steges des Halteteils insgesamt drei Kanäle (einer zwischen den Rippen und je einer zwischen einer Rippe und der benachbarten Wand des Gehäuses des Schalters, in das das Löschblechpaket für die Lichtbogenlöschkammer eingesetzt ist), durch welche die Abgase ohne die Gefahr von Außenüberschlägen abgeleitet werden.An advantageous embodiment of the invention also extends to an embodiment of the quenching plate package for an arc quenching chamber, in which it is provided that two rows of arc exit openings are provided in the web of the U-shaped holding part. If two ribs are provided in this embodiment, it can be provided according to the invention that one rib runs mirror-symmetrically to the other rib. This results in a total of three channels on the outside of the web of the holding part which has the arc outlet openings (one between the ribs and one each between a rib and the adjacent wall of the housing of the switch into which the quenching plate package for the arc quenching chamber is inserted), through which the Exhaust gases can be discharged without the risk of flashovers.
Der verfügbare Durchtrittsquerschnitt der Austrittsöffnungen für den Lichtbogen bzw. die Lichtbogengase beim Abblasen aus dem Löschblechpaket für die Lichtbogenlöschkammer läßt sich ohne Gefahr von Außenüberschlägen vergrößern, wenn gemäß einem Vorschlag der Erfindung vorgesehen ist, daß die Lichtbogenaustrittsöffnungen als Langlöcher ausgebildet sind, deren längere Erstreckung parallel zu den Löschblechen verläuft.The available passage cross section of the outlet openings for the arc or the arc gases when blowing off from the quenching plate package for the arc quenching chamber can be increased without the risk of outside flashovers if, according to a proposal of the invention, it is provided that the arc exit openings are designed as elongated holes, the longer extension of which runs parallel to the quenching plates.
Bei allen vorgenannten Ausführungsformen der Erfindung ist die wenigstens eine Rippe bevorzugt mit dem Steg des U-förmigen Halteteils einstückig ausgebildet.In all of the aforementioned embodiments of the invention, the at least one rib is preferably formed in one piece with the web of the U-shaped holding part.
Eine einfache Konstruktion des erfindungsgemäßen Löschblechpaketes für die Lichtbogenlöschkammer ergibt sich, wenn vorgesehen ist, daß die Löschbleche an ihren Längsrändern von diesen abstehende und in der Ebene der Löschbleche liegende, leistenförmige Vorsprünge tragen, die in entsprechend geformte Öffnungen in den Schenkeln des U-förmigen Halteteils eingreifen. Dabei bewährt sich eine Ausführungsform, bei der vorgesehen ist, daß in alle in den Schenkeln des U-förmigen Halteteils vorgesehene Öffnungen von den Löschblechen getragene Vorsprünge ragen.A simple construction of the quenching plate package according to the invention for the arc quenching chamber is obtained if it is provided that the quenching plates on their longitudinal edges project from these and lie in the plane of the quenching plates, strip-shaped projections which have correspondingly shaped openings in the legs of the U-shaped holding part intervention. An embodiment has proven itself in which it is provided that protrusions carried by the extinguishing plates protrude into all openings provided in the legs of the U-shaped holding part.
Weitere Vorteile und Einzelheiten des erfindungsgemäßen Löschblechpaketes für eine Lichtbogenlöschkammer ergeben sich aus der nachstehenden Beschreibung, in der ein Ausführungsbeispiel des Löschblechpaketes für das Löschblechpaket für die Lichtbogenlöschkammer gemäß der Erfindung dargestellt sind. Es zeigt:
- Fig. 1 in Seitenansicht eine erste Ausführungsform,
- Fig. 2 einen Schnitt längs der Linie II-II in Fig. 1,
- Fig. 3 einen Schnitt längs der Linie III-III in Fig. 1 und
- Fig. 4 teilweise die Lichtbogenlöschkammer von Fig. 1 von oben der Fig. 1 aus gesehen.
- 1 is a side view of a first embodiment,
- 2 shows a section along the line II-II in FIG. 1,
- Fig. 3 is a section along the line III-III in Fig. 1 and
- Fig. 4 partially seen the arc quenching chamber of Fig. 1 from above of Fig. 1.
Das Löschblechpaket 1 für eine Lichtbogenlöschkammer besitzt mehrere Löschbleche 2, die zueinander parallel angeordnet sind. Jedes Löschblech 2 besitzt an der Lichtbogeneintrittsseite einen im wesentlichen V-förmigen Schlitz 3.The quenching plate packet 1 for an arc quenching chamber has a plurality of
Die Löschbleche 2 werden von einem im Querschnitt im wesentlichen U-förmigen Halteteil 4 aus Isolierstoff gehalten. Hiezu besitzt jedes Löschblech 2 an beiden Längsseitenrändern zwei leistenförmige Vorsprünge 5 und 6, die in entsprechende Öffnungen 7 und 8 in den Schenkeln 9 und 10 des Halteteils 4 eingesetzt sind. Abgesehen von den durch die Vorsprünge 5 und 6 der Löschbleche 2 ausgefüllten und damit im wesentlichen verschlossenen Öffnungen 7 und 8 besitzt der Halteteil 4 in seinen Schenkeln 9 und 10 keine Öffnungen.The
Im Steg 11 des Halteteils 4 sind im gezeigten Ausführungsbeispiel in zwei Reihen 12 und 13 angeordnet Lichtbogenaustrittsöffnungen 14 vorgesehen. Die Lichtbogenaustrittsöffnungen 14 besitzen, wie dies insbesondere Fig. 4 zeigt, die Form von Langlöchern, deren längere Erstreckung parallel zu den Löschblechen 2 ausgerichtet ist.In the exemplary embodiment shown,
An der Außenseite des Steges 11 des Halteteils 4 sind zwei Rippen 15 und 16 vorgesehen, die wie ebenfalls Fig. 4 zeigt, schlangenlinienförmig verlaufen und jede der Lichtbogenaustrittsöffnungen 14 im wesentlichen über deren halben Umfang umgeben. Fig. 4 zeigt auch, daß die Rippen 15 und 16 zur Längsmittelebene 17 des Löschblechpaketes für eine Lichtbogenlöschkammer spiegelsymmetrisch angeordnet sind.On the outside of the
Anstelle der schlangenlinienförmig ausgebildeten Rippen 15 und 16, die von der Außenseite des Steges 11 des Halteteils 4 abstehen und die Lichtbogenaustrittsöffnungen 14 teilweise umgeben, können auch anders geformte Rippen vorgesehen sein.Instead of the serpentine ribs 15 and 16, which protrude from the outside of the
Beispielsweise sind Rippen denkbar, die ringförmig oder teilringförmig ausgebildet sind. Wesentlich ist bloß, daß die Luftstrecke zwischen einander benachbarten Lichtbogenaustrittsöffnungen durch die Rippe oder die Rippen vergrößert wird.For example, ribs are conceivable that are ring-shaped or partially ring-shaped. It is only essential that the air gap between adjacent arc exit openings is increased by the rib or the ribs.
Zusammenfassend kann die Erfindung beispielsweise wie folgt dargestellt werden:In summary, the invention can be represented as follows, for example:
Ein Löschblechpaket 1 für eine Lichtbogenlöschkammer besteht aus mehreren Löschblechen 2, die in einem U-förmigen Halteteil 4 aus Isolierwerkstoff eingesetzt sind. In dem dem Lichtbogeneintritt gegenüberliegenden Steg 11 des Halteteils 4 sind Lichtbogenaustrittsöffnungen 14 vorgesehen. Der Steg 11 trägt an seiner Außenseite zwei schlangenlinienförmige Rippen 15, 16, welche die Luftstrecke zwischen benachbarten Lichtbogenaustrittsöffnungen 14 vergrößern. So werden Außenüberschläge verhindert, obwohl die Lichtbogenaustrittsöffnungen 14 so groß dimensioniert werden können, daß das Abströmen der ionisierten Lichtbogengase aus dem Löschblechpaket 1 für eine Lichtbogenlöschkammer nicht behindert wird. Durch die Rippen 15, 16 werden zusammen mit den Wänden des Gehäuses, in dem das Löschblechpaket 1 untergebracht ist, insgesamt drei Kanäle für die Gasströmung gebildet. Dadurch wird das Abströmen der Lichtbogengase weiter begünstigt.A quenching plate packet 1 for an arc quenching chamber consists of
Claims (7)
- A quenching plate pack for an arc quenching chamber (1) for switches, especially for line protection switches, consisting of quenching plates (2) arranged parallel to one another or in fan shape, a holder part (4) of insulating material with a U-shaped cross-sectional form, in which the quenching plates (2) are fitted in fixed positions and which has arc exit openings (14), each arranged between adjacent quenching plates (2), in its web (11) opposite to the arc entrance, characterized in that at least one rib (15, 16) projects outwardly from the web (11) of the U-shaped holder part (4) and separates adjacent arc exit openings (14) from one another, and in that the rib (15 or 16) has a sinuous shape and surrounds respective opposite regions of adjacent arc exit openings (14) substantially over half their periphery.
- A quenching plate pack for an arc quenching chamber according to claim 1, characterized in that two rows (12, 13) of arc exit openings (14) are provided in the web (11) of the U-shaped holder part.
- A quenching plate pack for an arc quenching chamber according to claim 2, characterized in that two ribs (15, 16) are provided and in that the one rib (15) runs mirror symmetrical to the other rib (16).
- A quenching plate pack for an arc quenching chamber according to any of claims 1 to 3, characterized in that the arc exit openings (14) are in the form of slots whose longer extent runs parallel to the quenching plates (2).
- A quenching plate pack for an arc quenching chamber according to any of claims 1 to 4, characterized in that the rib (15, 16) is attached to the web (11) in one piece therewith.
- A quenching plate pack for an arc quenching chamber according to any of claims 1 to 5, characterized in that the quenching plates (2) carry strip-shaped projections (5, 6) on their long edges, extending therefrom and lying in the plane of the quenching plates (2) and which engage in correspondingly shaped openings (7, 8) in the limbs (9, 10) of the U-shaped holder part (4).
- A quenching plate pack for an arc quenching chamber according to claim 6, characterized in that projections (5, 6) carried by the quenching plates (2) project into all of the openings (7, 8) provided in the limbs (9, 10) of the U-shaped holder part (4).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT134/93 | 1993-01-27 | ||
| AT0013493A AT404770B (en) | 1993-01-27 | 1993-01-27 | ARC EXTINGUISHING CHAMBER FOR SWITCHES |
| PCT/AT1993/000193 WO1994017539A1 (en) | 1993-01-27 | 1993-12-13 | Extinguishing stack for an arc extinguishing chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0681737A1 EP0681737A1 (en) | 1995-11-15 |
| EP0681737B1 true EP0681737B1 (en) | 1997-02-12 |
Family
ID=3482432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94901686A Expired - Lifetime EP0681737B1 (en) | 1993-01-27 | 1993-12-13 | Extinguishing stack for an arc extinguishing chamber |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0681737B1 (en) |
| AT (2) | AT404770B (en) |
| AU (1) | AU674719B2 (en) |
| DE (1) | DE59305471D1 (en) |
| DK (1) | DK0681737T3 (en) |
| ES (1) | ES2100665T3 (en) |
| FI (1) | FI108681B (en) |
| GR (1) | GR3022624T3 (en) |
| HR (1) | HRP940039B1 (en) |
| NO (1) | NO307279B1 (en) |
| SI (1) | SI9300669B (en) |
| WO (1) | WO1994017539A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014002902B4 (en) * | 2014-02-27 | 2019-08-01 | Schaltbau Gmbh | Extinguishing chamber for a contactor and a contactor for extinguishing electric arcs |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3110790A (en) * | 1961-05-09 | 1963-11-12 | Gen Electric | Electric circuit interrupter |
| DE3042168A1 (en) * | 1980-11-08 | 1982-06-16 | Brown, Boveri & Cie Ag, 6800 Mannheim | CIRCUIT BREAKER |
| HU187905B (en) * | 1983-05-18 | 1986-03-28 | Villamosipari Kutato Intezet,Hu | Arc extinguishing construction for electric switches |
| DE3630447A1 (en) * | 1986-09-06 | 1988-03-10 | Bbc Brown Boveri & Cie | ARC EXTINGUISHING DEVICE |
-
1993
- 1993-01-27 AT AT0013493A patent/AT404770B/en not_active IP Right Cessation
- 1993-12-13 DK DK94901686.9T patent/DK0681737T3/en active
- 1993-12-13 AU AU56187/94A patent/AU674719B2/en not_active Ceased
- 1993-12-13 WO PCT/AT1993/000193 patent/WO1994017539A1/en active IP Right Grant
- 1993-12-13 ES ES94901686T patent/ES2100665T3/en not_active Expired - Lifetime
- 1993-12-13 AT AT94901686T patent/ATE148958T1/en active
- 1993-12-13 EP EP94901686A patent/EP0681737B1/en not_active Expired - Lifetime
- 1993-12-13 DE DE59305471T patent/DE59305471D1/en not_active Expired - Lifetime
- 1993-12-20 SI SI9300669A patent/SI9300669B/en not_active IP Right Cessation
-
1994
- 1994-01-25 HR HRA-134/93A patent/HRP940039B1/en not_active IP Right Cessation
-
1995
- 1995-07-12 FI FI953417A patent/FI108681B/en not_active IP Right Cessation
- 1995-07-19 NO NO952868A patent/NO307279B1/en not_active IP Right Cessation
-
1997
- 1997-02-20 GR GR970400308T patent/GR3022624T3/en unknown
Non-Patent Citations (1)
| Title |
|---|
| Derwent's abstract no. D0498 E/11, Woche 8211,Zusammenfassung von SU 836 691, (NW EXTRAMURAL POLY) 10 Juni 1981 * |
Also Published As
| Publication number | Publication date |
|---|---|
| NO307279B1 (en) | 2000-03-06 |
| AT404770B (en) | 1999-02-25 |
| NO952868D0 (en) | 1995-07-19 |
| DE59305471D1 (en) | 1997-03-27 |
| HRP940039B1 (en) | 2000-04-30 |
| WO1994017539A1 (en) | 1994-08-04 |
| FI953417A0 (en) | 1995-07-12 |
| AU5618794A (en) | 1994-08-15 |
| SI9300669A (en) | 1994-09-30 |
| SI9300669B (en) | 2002-02-28 |
| ES2100665T3 (en) | 1997-06-16 |
| EP0681737A1 (en) | 1995-11-15 |
| AU674719B2 (en) | 1997-01-09 |
| ATA13493A (en) | 1998-06-15 |
| HRP940039A2 (en) | 1996-08-31 |
| FI108681B (en) | 2002-02-28 |
| NO952868L (en) | 1995-07-19 |
| GR3022624T3 (en) | 1997-05-31 |
| ATE148958T1 (en) | 1997-02-15 |
| FI953417A (en) | 1995-07-12 |
| DK0681737T3 (en) | 1997-03-10 |
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