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EP0022708A1 - Arc quencher for multi-pole low-tension circuit breaker with moulded casing - Google Patents

Arc quencher for multi-pole low-tension circuit breaker with moulded casing Download PDF

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Publication number
EP0022708A1
EP0022708A1 EP19800401023 EP80401023A EP0022708A1 EP 0022708 A1 EP0022708 A1 EP 0022708A1 EP 19800401023 EP19800401023 EP 19800401023 EP 80401023 A EP80401023 A EP 80401023A EP 0022708 A1 EP0022708 A1 EP 0022708A1
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EP
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Prior art keywords
extinguishing chamber
arc extinguishing
chamber according
agglomerated
circuit breaker
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Granted
Application number
EP19800401023
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German (de)
French (fr)
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EP0022708B1 (en
Inventor
Jean Amalric
Gérard Cambon
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Merlin Gerin SA
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Merlin Gerin SA
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Application filed by Merlin Gerin SA filed Critical Merlin Gerin SA
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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
    • H01H9/342—Venting arrangements for arc chutes

Definitions

  • the deionization device comprises metal grids or screens with fine mesh, in particular made of steel, housed in the exhaust orifices.
  • the cut-off gases generated in the extinguishing chamber during the cut-off are ventilated to the outside environment after passing through the grids acting as flame arresters, and it has been found that these gases were still strongly ionized at the outlet of the bedroom.
  • the object of the invention is to avoid the aforementioned drawbacks and to allow the production of an extinguishing chamber with high breaking capacity, equipped with an improved deionization device of compact structure allowing a efficient cooling of the cut-off gases ventilated to the outside environment.
  • the extinguishing chamber is characterized by the fact that said deionization device comprises a one-piece screen of porous structure formed from agglomerated elements .- forming between them interstices for passage of the cutting gases towards the external medium, the constituent material said elements having a high melting point, thermal conductivity and heat capacity.
  • Each agglomerated element has a dimension of between 0.5 mm and 1.5 mm whatever the nature of the material chosen, in order to determine the optimal particle size of said screen, which is porous suitable for efficient absorption of the heat from the cutting gases without hampering their exhaust to the outside.
  • said material of the agglomerated elements of the porous screen comprises a metal or alloy, in particular based on copper.
  • said material of agglomerated elements is non-metallic, in particular a refractory ceramic material, or a powder based on sand.
  • Said elements of the porous screen consist of balls or grains agglomerated by any heating or sintering process.
  • the balls have substantially the same diameter so as to provide interstices large enough for the escape of gases.
  • Figure 1 is a longitudinal sectional view of a cham bre of arc extinction according to the invention, of a molded case circuit breaker shown partially torn off;
  • Figure 2 is a side view of Figure 1, a single external connection being connected to an output pad of the central pole;
  • FIG. 3 shows in perspective the deionization device of FIG. 1.
  • the low-voltage multi-pole circuit breaker 10 with housing 12 made of molded insulating material and with manual control lever 14, comprises, by pole, an arc extinguishing chamber 16 housed in a lower compartment 18 of the housing 12 .
  • Each arc extinguishing chamber 16 comprises a pair of separable contacts 20, 22 and a stack of V-shaped cooling plates 24 extending transversely to the direction of extension of the arc drawn between the contacts 20, 22 during their separation after tripping of the circuit breaker.
  • the fixed contact 20 is supported by a conductor 26 in the form of a U-shaped pin, positioned on an intermediate wall 27 of the housing 12 and in electrical connection with an external connection pad 28.
  • a metal shielding element 30 is inserted between the two branches of the conductor pin 26, and is provided with an extension 32 acting as an end separator.
  • the movable contact 22 is integral with a contact arm 34 associated with a pivoting bar of the actuation mechanism (not shown) common to all the poles.
  • a braid 36 connecting connects the opposite end of the arm 34 to the thermal and electromagnetic trip elements (not shown) of each pole.
  • the transverse face of the lower compartment of the housing 12 is provided with an orifice 38 for exhaust of the cut-off gases formed at the outlet from each arc extinguishing chamber 16.
  • a gas deionization device designated by the general reference 40, is arranged in each exhaust orifice 38 to reduce the external manifestations of the ionized gases in the vicinity of the connections 43 associated with the pads 28 thanks to efficient cooling. hot gases at the outlet of the chamber 16.
  • Each deionization device 40 cooperates with the sheets 24 and comprises a block 41 (fig. 3) or parallelepiped screen of porous structure, formed from beads 42 or agglomerated grains, sparing between them gas passage interstices.
  • the material of the balls 42 has both good thermal conductivity and a high heat capacity, and in particular comprises a metal or alloy with a high melting point such as bronze, copper or steel.
  • the choice of the dimensions of the balls 42 or of the grains was fundamental for determining the optimal particle size of the porous block 41 and obtaining an effective absorption of the heat at the outlet of the chamber 16 without hampering the exhaust of cut-off gases to the outside environment.
  • This particle size depends on the material chosen and on the volume of the porous block 41, and it was found during tests that the diameter of the balls 42 or grains had to be between 0.5 mm and 1.5 mm to obtain correct exhaust of the gases and optimum lowering of the outlet gas temperature.
  • the porous block 41 of dimensions 25 mm x 18 mm and thickness 3.6 mm comprises balls 42 of bronze having diameters close to 0.8 mm.
  • the agglomeration operation of the balls 42 or grains can be carried out by any heating or sintering process well known to specialists.
  • the porous block 41 can consist of balls 42 or grains made of non-metallic material, resistant to the high temperatures of the cutting gases, in particular a refractory or powdery ceramic material based on sand, and whose dimensions are included in the above range from 0.5 mm to 1.5 mm.
  • An additional screen 44 made of insulating material, is arranged in the exhaust zone of each arc extinguishing chamber 16, in the interval formed between the ends of the sheets 24 and the porous block 41.
  • the screen 44 s 'extends in the height direction between the bottom 45 of the housing 12 and the intermediate wall 27, and is pierced with a plurality of holes 46 arranged opposite the porous block 41.

Landscapes

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

Abstract

1. Arc quencher chamber for multi-pole low-tension circuit breaker with moulded insulating casing (12) comprising per pole : - a pair of separable stationary (20) and movable (22) contacts, - a driving mechanism for moving between the open and closed positions the movable contact (22), - metal plates (24) for cooling the arc drawn between said contacts when they separate upon tripping of said circuit breaker, - an extinction gas venting opening (38) provided in the casing (12) near the output of the chamber (16), - a deionizing device (40) located near said venting opening for cooling the extinction gas blown outsides, characterized by the fact that the deionizing device comprises a monobloc venting screen (41) with a porous structure formed by balls or corns agglomerated by a sintering or heating process and having a size included between 0,5 mm and 1,5 mm corresponding to a predetermined granulometry of said porous structure having extinction gas venting intervals, the ball material comprising a metal or an alloy.

Description

L'invention est relative à une chambre d'extinction d'arc pour disjoncteur basse tension multipolaire à boîtier en matériau isolant moulé, comprenant par pôle:

  • - une paire de contacts séparables fixe et mobile,
  • - un mécanisme d'actionnement du contact mobile déplaçable entre des positions de fermeture et d'ouverture,
  • - des tôles métalliques de refroidissement de l'arc tiré entre lesdits contacts lors de leur séparation après déclenchement du disjoncteur,
  • - un orifice d'échappement des gaz de coupure ménagé dans le boitier à la sortie de ladite chambre,
  • - et un dispositif de désionisation agencé au voisinage dudit orifice d'échappement pour refroidir les gaz de coupure ventilés vers le milieu extérieur.
The invention relates to an arc extinguishing chamber for a multipolar low-voltage circuit breaker with a casing made of molded insulating material, comprising per pole:
  • - a pair of separable fixed and mobile contacts,
  • - a mechanism for actuating the movable contact movable between closed and open positions,
  • - metal sheets for cooling the arc drawn between said contacts during their separation after tripping of the circuit breaker,
  • a cut-off gas exhaust opening in the housing at the outlet of said chamber,
  • - And a deionization device arranged in the vicinity of said exhaust orifice to cool the cut gases vented to the outside environment.

Selon un disjoncteur connu du genre mentionné, le dispositif de désionisation comprend des grilles métalliques ou écrans à mailles fines, notamment en acier, logées dans les orifices d'échappement. Les gaz de coupure engendrés dans la chambre d'extinction lors de la coupure sont ventilés vers le milieu extérieur après passage par les grilles jouant le rôle de pare-flammes, et on a constaté que ces gaz étaient encore fortement ionisés à la sortie de la chambre.According to a known circuit breaker of the kind mentioned, the deionization device comprises metal grids or screens with fine mesh, in particular made of steel, housed in the exhaust orifices. The cut-off gases generated in the extinguishing chamber during the cut-off are ventilated to the outside environment after passing through the grids acting as flame arresters, and it has been found that these gases were still strongly ionized at the outlet of the bedroom.

Pour améliorer le refroidissement des gaz de coupure, on a déjà proposé d'autres dispositifs de désionisation, notamment un labyrinthe formé par une pluralité d'écrans à fenêtres décalées, une grille à réflexion, des tubes de refroidissement, mais l'encombrement important de ces dispositifs ne permet pas leur utilisation dans des chambres d'extinction compactes pour disjoncteurs à boîtiers moulés. Le but de l'invention est d'éviter les inconvénients précités et de permettre la réalisation d'une chambre d'extinction à pouvoir de coupure élevé, équipée d'un dispositif de désionisation perfectionné de structure compacte permettant un refroidissement efficace des gaz de coupure ventilés vers le milieu extérieur.To improve the cooling of the cut-off gases, other deionization devices have already been proposed, in particular a labyrinth formed by a plurality of screens with offset windows, a reflection grid, cooling tubes, but the considerable bulk of these devices do not allow their use in compact extinguishing chambers for molded case circuit breakers. The object of the invention is to avoid the aforementioned drawbacks and to allow the production of an extinguishing chamber with high breaking capacity, equipped with an improved deionization device of compact structure allowing a efficient cooling of the cut-off gases ventilated to the outside environment.

La chambre d'extinction est caractérisée par le fait que ledit dispositif de désionisation comporte un écran monobloc de structure poreuse formée à partir d'éléments agglomérés .- ménageant entre eux des interstices de passage des gaz de coupure vers le milieu extérieur, le matériau constitutif desdits éléments présentant un point de fusion, une conductibilité thermique et une capacité calorifique élevés. Chaque élément aggloméré a une dimension comprise entre 0,5 mm et 1,5 mm quelle que soit la nature du matériau choisi, pour déterminer la granulométrie optimale dudit écran, poreux approprié à une absorption efficace de la chaleur des gaz de coupure sans gêner pour autant leur échappement vers l'extérieur.The extinguishing chamber is characterized by the fact that said deionization device comprises a one-piece screen of porous structure formed from agglomerated elements .- forming between them interstices for passage of the cutting gases towards the external medium, the constituent material said elements having a high melting point, thermal conductivity and heat capacity. Each agglomerated element has a dimension of between 0.5 mm and 1.5 mm whatever the nature of the material chosen, in order to determine the optimal particle size of said screen, which is porous suitable for efficient absorption of the heat from the cutting gases without hampering their exhaust to the outside.

Selon une caractéristique de l'invention, ledit matériau des éléments agglomérés de l'écran poreux comprend un métal ou alliage, notamment à base de cuivre.According to a characteristic of the invention, said material of the agglomerated elements of the porous screen comprises a metal or alloy, in particular based on copper.

Selon une autre caractéristique de l'invention, ledit matériau des éléments agglomérés est non métallique, notamment un matériau céramique réfractaire, ou pulvérulent à base de sable.According to another characteristic of the invention, said material of agglomerated elements is non-metallic, in particular a refractory ceramic material, or a powder based on sand.

Lesdits éléments de l'écran poreux sont constitués par des billes ou grains agglomérés par tout procédé de chauffage ou de frittage. Les billes ont sensiblement le même diamètre de manière à ménager des interstices suffisamment grands pour l'échappement des gaz.Said elements of the porous screen consist of balls or grains agglomerated by any heating or sintering process. The balls have substantially the same diameter so as to provide interstices large enough for the escape of gases.

D'autres avantages et caractéristiques ressortiront plus clairement de l'exposé qui va suivre d'un mode de mise en oeuvre de l'invention, donné à titre d'exemple non limitatif et représenté aux dessins annexés, dans lesquels :Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention, given by way of nonlimiting example and shown in the appended drawings, in which:

la figure 1 est une vue en coupe longitudinale d'une chambre d'extinction d'arc selon l'invention, d'un disjoncteur à boîtier moulé représenté partiellement arraché ;Figure 1 is a longitudinal sectional view of a cham bre of arc extinction according to the invention, of a molded case circuit breaker shown partially torn off;

la figure 2 est une vue de profil de la figure 1, une seule connexion extérieure étant connectée à une plage de sortie du pôle central ;Figure 2 is a side view of Figure 1, a single external connection being connected to an output pad of the central pole;

la figure 3 représente en perspective le dispositif de désionisation de la fig. 1.FIG. 3 shows in perspective the deionization device of FIG. 1.

En référence aux figures 1 à 3, le disjoncteur 10 basse tension multipolaire à boîtier 12 en matériau isolant moulé et à manette 14 de commande manuelle, comporte par pôle une chambre d'extinction d'arc 16 logée dans un compartiment inférieur 18 du boîtier 12.With reference to FIGS. 1 to 3, the low-voltage multi-pole circuit breaker 10 with housing 12 made of molded insulating material and with manual control lever 14, comprises, by pole, an arc extinguishing chamber 16 housed in a lower compartment 18 of the housing 12 .

Chaque chambre d'extinction d'arc 16 comprend une paire de contacts 20, 22 séparables et un empilage de tôles 24 de refroidissement encochées en V, s'étendant transversalement à la direction d'extension de l'arc tiré entre les contacts 20, 22 lors de leur séparation après déclenchement du disjoncteur. Le contact fixe 20 est supporté par un conducteur 26 en forme d'épingle en U, positionnée sur une paroi 27 intermédiaire du boîtier 12 et en liaison électrique avec une plage 28 extérieure de raccordement. Un élément de blindage 30 métallique est inséré entre les deux branches de l'épingle du conducteur 26, et est doté d'une extension 32 jouant le rôle de séparateur d'extrémité. Le contact mobile 22 est solidaire d'un bras de contact 34 associé à un barreau pivotant du mécanisme d'actionnement (non représenté) commun à tous les pôles. Une tresse 36 de liaison connecte l'extrémité opposée du bras 34 aux éléments déclencheurs thermique et électromagnétique (non représentés) de chaque pôle. La face transversale du compartiment inférieur du boîtier 12 est munie d'un orifice 38 d'échappement des gaz de coupure ménagé à la sortie de chaque chambre 16 d'extinction d'arc.Each arc extinguishing chamber 16 comprises a pair of separable contacts 20, 22 and a stack of V-shaped cooling plates 24 extending transversely to the direction of extension of the arc drawn between the contacts 20, 22 during their separation after tripping of the circuit breaker. The fixed contact 20 is supported by a conductor 26 in the form of a U-shaped pin, positioned on an intermediate wall 27 of the housing 12 and in electrical connection with an external connection pad 28. A metal shielding element 30 is inserted between the two branches of the conductor pin 26, and is provided with an extension 32 acting as an end separator. The movable contact 22 is integral with a contact arm 34 associated with a pivoting bar of the actuation mechanism (not shown) common to all the poles. A braid 36 connecting connects the opposite end of the arm 34 to the thermal and electromagnetic trip elements (not shown) of each pole. The transverse face of the lower compartment of the housing 12 is provided with an orifice 38 for exhaust of the cut-off gases formed at the outlet from each arc extinguishing chamber 16.

Selon l'invention, un dispositif de désionisation des gaz, désigné par le repère général 40, est disposé dans chaque orifice d'échappement 38 pour diminuer les manifestations extérieures des gaz ionisés au voisinage des connexions 43 associées aux plages 28 grâce à un refroidissement efficace des gaz chauds à la sortie de la chambre 16. Chaque dispositif de désionisation 40 coopère avec les tôles 24 et comporte un bloc 41 (fig. 3) ou écran parallélépipédique de structure poreuse, formée à partir de billes 42 ou de grains agglomérés, ménageant entre eux des interstices de passage du gaz. Le matériau des billes 42 présente à la fois une bonne conductibilité thermique et une capacité calorifique élevée, et comprend notamment un métal ou alliage à point de fusion élevé comme le bronze, le cuivre ou l'acier. Il est apparu d'autre part que le choix des dimensions des billes 42 ou des grains était fondamental pour déterminer la granulométrie optimale du bloc poreux 41 et obtenir une absorption efficace de la chaleur à la sortie de la chambre 16 sans gêner pour autant l'échappement des gaz de coupure vers le milieu extérieur. Cette granulométrie dépend du matériau choisi et du volume du bloc poreux 41, et on a constaté lors des essais que le diamètre des billes 42 ou grains devait être compris entre 0,5 mm et 1,5 mm pour obtenir un échappement correct des gaz et un abaissement optimum de la température des gaz de sortie. Dans le mode de réalisation représenté, le bloc poreux 41 de dimensions 25 mm x 18 mm et d'épaisseur 3,6 mm comporte des billes 42 en bronze ayant des diamètres voisins de 0,8 mm. L'opération d'agglomération des billes 42 ou grains peut être réalisée par tout procédé de chauffage ou de frittage bien connu des spécialistes.According to the invention, a gas deionization device, designated by the general reference 40, is arranged in each exhaust orifice 38 to reduce the external manifestations of the ionized gases in the vicinity of the connections 43 associated with the pads 28 thanks to efficient cooling. hot gases at the outlet of the chamber 16. Each deionization device 40 cooperates with the sheets 24 and comprises a block 41 (fig. 3) or parallelepiped screen of porous structure, formed from beads 42 or agglomerated grains, sparing between them gas passage interstices. The material of the balls 42 has both good thermal conductivity and a high heat capacity, and in particular comprises a metal or alloy with a high melting point such as bronze, copper or steel. It appeared, on the other hand, that the choice of the dimensions of the balls 42 or of the grains was fundamental for determining the optimal particle size of the porous block 41 and obtaining an effective absorption of the heat at the outlet of the chamber 16 without hampering the exhaust of cut-off gases to the outside environment. This particle size depends on the material chosen and on the volume of the porous block 41, and it was found during tests that the diameter of the balls 42 or grains had to be between 0.5 mm and 1.5 mm to obtain correct exhaust of the gases and optimum lowering of the outlet gas temperature. In the embodiment shown, the porous block 41 of dimensions 25 mm x 18 mm and thickness 3.6 mm comprises balls 42 of bronze having diameters close to 0.8 mm. The agglomeration operation of the balls 42 or grains can be carried out by any heating or sintering process well known to specialists.

Selon une variante de réalisation, le bloc poreux 41 peut être constitué par des billes 42 ou grains en matériau non 1 métallique, résistant aux températures élevées des gaz de coupure, notamment un matériau céramique réfractaire ou pulvérulent à base de sable, et dont les dimensions sont comprises dans la fourchette précitée de 0,5 mm à 1,5 mm.According to an alternative embodiment, the porous block 41 can consist of balls 42 or grains made of non-metallic material, resistant to the high temperatures of the cutting gases, in particular a refractory or powdery ceramic material based on sand, and whose dimensions are included in the above range from 0.5 mm to 1.5 mm.

Un écran 44 additionnel, en matériau isolant, est agencé dans la zone d'échappement de chaque chambre d'extinction d'arc 16, dans l'intervalle ménagé entre les extrémités des tôles 24 et le bloc poreux 41. L'écran 44 s'étend dans le sens de la hauteur entre le fond 45 du boîtier 12 et la paroi intermédiaire 27, et est percé d'une pluralité de trous 46 disposés en regard du bloc poreux 41.An additional screen 44, made of insulating material, is arranged in the exhaust zone of each arc extinguishing chamber 16, in the interval formed between the ends of the sheets 24 and the porous block 41. The screen 44 s 'extends in the height direction between the bottom 45 of the housing 12 and the intermediate wall 27, and is pierced with a plurality of holes 46 arranged opposite the porous block 41.

Le fonctionnement du dispositif de désionisation 40 selon l'invention découle de la description précédente, et il suffit de rappeler que lors de la coupure de l'arc dans la chambre d'extinction 16, les gaz de coupure après passage à travers l'écran 44 isolant, sont refroidis efficacement dans le bloc poreux 41 et s'échappent vers le milieu extérieur.The operation of the deionization device 40 according to the invention follows from the preceding description, and it suffices to recall that when the arc is cut in the extinguishing chamber 16, the cutting gases after passing through the screen 44 insulator, are effectively cooled in the porous block 41 and escape to the outside environment.

L'invention n'est bien entendu nullement limitée au mode de mise en oeuvre plus particulièrement décrit et représenté aux dessins annexés, mais elle s'étend bien au contraire à toute variante restant dans le cadre des équivalences mécaniques et électriques, notamment celle dans laquelle les billes 42 ou grains du bloc poreux 41 seraient remplacés par d'autres éléments agglomérés.The invention is of course in no way limited to the embodiment more particularly described and shown in the accompanying drawings, but it extends quite the contrary to any variant remaining within the framework of mechanical and electrical equivalences, in particular that in which the balls 42 or grains of the porous block 41 would be replaced by other agglomerated elements.

Claims (11)

-1. Chambre (16) d'extinction d'arc pour disjoncteur (10) basse tension multipolaire à boîtier en matériau isolant moulé, comprenant par pôle : - une paire de contacts séparables fixe (20) et mobile (22), - un mécanisme d'actionnement du contact mobile (22) déplaçable entre des positions de fermeture et d'ouverture, - des tôles (24) métalliques de refroidissement de l'arc tiré entre lesdits contacts lors de leur séparation après déclenchement du disjoncteur, - un orifice (38) d'échappement des gaz de coupure ménagé dans le boîtier à la sortie de ladite chambre (16), - et un dispositif (40) de désionisation agencé au voisinage dudit orifice d'échappement pour refroidir les gaz de coupure ventilés vers le milieu extérieur, caractérisée par le fait que ledit dispositif de désionisation (40) comporte un écran (41) monobloc de structure poreuse formée à partir d'éléments (42) agglomérés ménageant entre eux des interstices de passage des gaz de coupure vers le milieu extérieur, le matériau constitutif desdits éléments présentant un point de fusion, une conductibilité thermique et une capacité calorifique élevés. -1. Arc extinguishing chamber (16) for multipolar low voltage circuit breaker (10) with casing of molded insulating material, comprising per pole: - a pair of separable fixed (20) and movable (22) contacts, a mechanism for actuating the movable contact (22) movable between closed and open positions, - metal sheets (24) for cooling the arc drawn between said contacts during their separation after tripping of the circuit breaker, an orifice (38) for exhausting the cut-off gases formed in the housing at the outlet from said chamber (16), - and a deionization device (40) arranged in the vicinity of said exhaust orifice for cooling the cut-off gases ventilated towards the outside environment, characterized in that said deionization device (40) comprises a one-piece screen (41) of porous structure formed from agglomerated elements (42) forming between them interstices for passage of the cutting gases towards the external medium, the material constituting said elements having a high melting point, thermal conductivity and heat capacity. 2. Chambre d'extinction d'arc selon la revendication 1, caractérisée par le fait que chaque élément aggloméré (42) a une dimension comprise entre 0,5 mm et 1,5 mm quelle que soit la nature du matériau choisi pour déterminer la granulométrie optimale dudit écran poreux (41) approprié à une absorption efficace de la chaleur des gaz de coupure sans gêner pour autant leur échappement vers l'extérieur.2. Arc extinguishing chamber according to claim 1, characterized in that each agglomerated element (42) has a dimension between 0.5 mm and 1.5 mm regardless of the nature of the material chosen to determine the optimal particle size of said porous screen (41) suitable for efficient absorption of heat from the cutting gases without hampering their exhaust to the outside. 3. Chambre d'extinction d'arc selon la revendication 2, caractérisée par le fait que ledit matériau des éléments agglomérés (42) de l'écran poreux (41) comprend un métal ou alliage.3. Arc extinguishing chamber according to claim 2, characterized in that said material of the agglomerated elements (42) of the porous screen (41) comprises a metal or alloy. 4. Chambre d'extinction d'arc selon la revendication 3, caractérisée par le fait que ledit matériau est à base de cuivre.4. Arc extinguishing chamber according to claim 3, characterized in that said material is based on copper. 5. Chambre d'extinction d'arc selon la revendication 4, caractérisée par le fait que ledit matériau est du bronze.5. Arc extinguishing chamber according to claim 4, characterized in that said material is bronze. 6. Chambre d'extinction d'arc selon l'une des revendications 2 à 5, caractérisée par le fait que lesdits éléments agglomérés (42) sont constitués par des billes ayant sensiblement le même diamètre.6. Arc extinguishing chamber according to one of claims 2 to 5, characterized in that said agglomerated elements (42) are constituted by balls having substantially the same diameter. 7. Chambre d'extinction d'arc selon l'une des revendications 2 à 5, caractérisée par le fait que lesdits éléments agglomérés (42) sont constitués par des grains.7. Arc extinguishing chamber according to one of claims 2 to 5, characterized in that said agglomerated elements (42) consist of grains. 8. Chambre d'extinction d'arc selon l'une quelconque des revendications précédentes, caractérisée par le fait que lesdits éléments dudit écran poreux (41) sont agglomérés par tout procédé de chauffage ou de frittage.8. Arc extinguishing chamber according to any one of the preceding claims, characterized in that said elements of said porous screen (41) are agglomerated by any heating or sintering process. 9. Chambre d'extinction d'arc selon la revendication 8, caractérisée par le fait que ledit matériau des éléments agglomérés est non métallique, notamment un matériau céramique réfractaire ou pulvérulent à base de sable.9. Arc extinguishing chamber according to claim 8, characterized in that said material of the agglomerated elements is non-metallic, in particular a refractory or powdery ceramic material based on sand. 10. Chambre d'extinction d'arc selon l'une quelconque des revendications précédentes, caractérisée par le fait que ledit écran poreux (4!) logé dans l'orifice d'échappement10. Arc extinguishing chamber according to any one of the preceding claims, characterized in that said porous screen (4!) Housed in the exhaust orifice (38) du pôle associé, est disposé en regard d'une connexion extérieure (43) reliée à la plage (28) correspondante pour un raccordement par l'arrière du disjoncteur.(38) of the associated pole, is arranged opposite an external connection (43) connected to the corresponding pad (28) for connection from the rear of the circuit breaker.
EP19800401023 1979-07-12 1980-07-04 Arc quencher for multi-pole low-tension circuit breaker with moulded casing Expired EP0022708B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7918315A FR2461349A1 (en) 1979-07-12 1979-07-12 IMPROVED CUTTING CHAMBER FOR MULTIPOLAR LOW VOLTAGE CIRCUIT BREAKER WITH MOLDED HOUSING
FR7918315 1979-07-12

Publications (2)

Publication Number Publication Date
EP0022708A1 true EP0022708A1 (en) 1981-01-21
EP0022708B1 EP0022708B1 (en) 1983-10-05

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Family Applications (1)

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EP19800401023 Expired EP0022708B1 (en) 1979-07-12 1980-07-04 Arc quencher for multi-pole low-tension circuit breaker with moulded casing

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Country Link
EP (1) EP0022708B1 (en)
DE (1) DE3065153D1 (en)
FR (1) FR2461349A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446041A1 (en) * 1984-12-18 1986-06-19 Brown, Boveri & Cie Ag, 6800 Mannheim ELECTRICAL CIRCUIT BREAKER
FR2655770A1 (en) * 1989-12-11 1991-06-14 Merlin Gerin MULTIPOLAR CIRCUIT BREAKER WITH GAS FILTER COMMON TO THE DIFFERENT POLES.
EP0644567A1 (en) * 1993-09-20 1995-03-22 Schneider Electric Sa Gas-insulated high voltage circuit-breaker with rotating arc
US5889249A (en) * 1996-06-28 1999-03-30 Schneider Electric Sa Tightly joined wire mesh deionizing device for a current breaker
DE19803925A1 (en) * 1998-02-02 1999-08-05 Maier & Cie C Electrical installation switch for fitting to current rail in LV distribution network
EP1298687A2 (en) * 2001-09-28 2003-04-02 Siemens AG Arc extinguisher for low voltage switchgear
US6570116B2 (en) 2001-08-16 2003-05-27 Square D Company Current carrying assembly for a circuit breaker
CN107230571A (en) * 2016-03-24 2017-10-03 施耐德电器工业公司 The electrical equipment for being used to disconnect electric current in air including extinguishing gas-filtering device
EP3389068A1 (en) * 2017-04-14 2018-10-17 Schneider Electric Industries SAS Apparatus for filtering cut-off gases in an electrical switching device and electrical switching device comprising this apparatus
US10134537B2 (en) 2015-02-17 2018-11-20 Abb Schweiz Ag Filter assembly for a circuit breaker arc chamber

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169732A (en) * 1982-03-31 1983-10-06 松下電工株式会社 Circuit breaker
US7176771B2 (en) 2001-08-24 2007-02-13 Square D Company Circuit breaker filter assembly

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GB551966A (en) * 1941-12-23 1943-03-17 Gen Electric Improvements in air-break electric circuit breakers
CH247847A (en) * 1943-03-31 1947-03-31 Skoda Kp Current interruption device.
FR1364701A (en) * 1963-05-11 1964-06-26 Merlin Gerin Extinguishing chamber for load-breaking disconnectors
FR1544434A (en) * 1966-11-14 1968-10-31 Gen Electric Arc Blast Box Electrical Circuit Breaker
FR2154628A1 (en) * 1971-09-30 1973-05-11 Maier & Cie C
FR2269190A1 (en) * 1974-04-23 1975-11-21 Airpax Electronics

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GB551966A (en) * 1941-12-23 1943-03-17 Gen Electric Improvements in air-break electric circuit breakers
CH247847A (en) * 1943-03-31 1947-03-31 Skoda Kp Current interruption device.
FR1364701A (en) * 1963-05-11 1964-06-26 Merlin Gerin Extinguishing chamber for load-breaking disconnectors
FR1544434A (en) * 1966-11-14 1968-10-31 Gen Electric Arc Blast Box Electrical Circuit Breaker
FR2154628A1 (en) * 1971-09-30 1973-05-11 Maier & Cie C
FR2269190A1 (en) * 1974-04-23 1975-11-21 Airpax Electronics

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446041A1 (en) * 1984-12-18 1986-06-19 Brown, Boveri & Cie Ag, 6800 Mannheim ELECTRICAL CIRCUIT BREAKER
FR2655770A1 (en) * 1989-12-11 1991-06-14 Merlin Gerin MULTIPOLAR CIRCUIT BREAKER WITH GAS FILTER COMMON TO THE DIFFERENT POLES.
EP0437151A1 (en) * 1989-12-11 1991-07-17 Schneider Electric Sa Multipolar circuit-breaker with a gas filter which is common to different poles
EP0644567A1 (en) * 1993-09-20 1995-03-22 Schneider Electric Sa Gas-insulated high voltage circuit-breaker with rotating arc
FR2710452A1 (en) * 1993-09-20 1995-03-31 Merlin Gerin High voltage switch with rotating arc.
US5889249A (en) * 1996-06-28 1999-03-30 Schneider Electric Sa Tightly joined wire mesh deionizing device for a current breaker
CN1072832C (en) * 1996-06-28 2001-10-10 施耐德电器工业公司 Device for deionizing gases and arc extinguishing chamber equipped with this device
DE19803925A1 (en) * 1998-02-02 1999-08-05 Maier & Cie C Electrical installation switch for fitting to current rail in LV distribution network
US6570116B2 (en) 2001-08-16 2003-05-27 Square D Company Current carrying assembly for a circuit breaker
EP1298687A2 (en) * 2001-09-28 2003-04-02 Siemens AG Arc extinguisher for low voltage switchgear
EP1298687A3 (en) * 2001-09-28 2004-12-15 Siemens AG Arc extinguisher for low voltage switchgear
US10134537B2 (en) 2015-02-17 2018-11-20 Abb Schweiz Ag Filter assembly for a circuit breaker arc chamber
CN107230571A (en) * 2016-03-24 2017-10-03 施耐德电器工业公司 The electrical equipment for being used to disconnect electric current in air including extinguishing gas-filtering device
CN107230571B (en) * 2016-03-24 2020-11-27 施耐德电器工业公司 Electrical apparatus for breaking the current in air comprising a quenching gas filtering device
EP3389068A1 (en) * 2017-04-14 2018-10-17 Schneider Electric Industries SAS Apparatus for filtering cut-off gases in an electrical switching device and electrical switching device comprising this apparatus
FR3065316A1 (en) * 2017-04-14 2018-10-19 Schneider Electric Industries Sas CUTTING GAS FILTRATION DEVICE FOR CUTTING APPARATUS OF ELECTRIC CURRENT, AND APPARATUS FOR CUTTING ELECTRIC CURRENT COMPRISING SAID FILTERING DEVICE
US10347438B2 (en) 2017-04-14 2019-07-09 Schneider Electric Industries Sas Arc extinguishing gas filtering device for electrical current switchgear and electrical current switchgear comprising this filtering device

Also Published As

Publication number Publication date
FR2461349B1 (en) 1982-02-19
EP0022708B1 (en) 1983-10-05
FR2461349A1 (en) 1981-01-30
DE3065153D1 (en) 1983-11-10

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