EP0713232A1 - Arc chamber for an electrical circuit breaker - Google Patents

Arc chamber for an electrical circuit breaker Download PDF

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Publication number
EP0713232A1
EP0713232A1 EP95410128A EP95410128A EP0713232A1 EP 0713232 A1 EP0713232 A1 EP 0713232A1 EP 95410128 A EP95410128 A EP 95410128A EP 95410128 A EP95410128 A EP 95410128A EP 0713232 A1 EP0713232 A1 EP 0713232A1
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EP
European Patent Office
Prior art keywords
movable contact
chamber
arc
cut
chamber according
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.)
Granted
Application number
EP95410128A
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German (de)
French (fr)
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EP0713232B1 (en
Inventor
Christian Schneider Electric Fievet
Denis Schneider Electric Giraud
Steve Schneider Electric Rowe
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.)
Schneider Electric Industries SAS
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Schneider Electric SE
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Publication date
Application filed by Schneider Electric SE filed Critical Schneider Electric SE
Publication of EP0713232A1 publication Critical patent/EP0713232A1/en
Application granted granted Critical
Publication of EP0713232B1 publication Critical patent/EP0713232B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H9/52—Cooling of switch parts
    • 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

Definitions

  • the invention relates to the breaking chamber of an electric circuit breaker, comprising an arc-forming chamber containing a fixed contact and a movable contact, which, at the time of their separation form an arc between them, said formation chamber communicating with the entrance to a second chamber, called the arc extinction chamber.
  • circuit breakers in particular miniature circuit breakers, it has been observed that after the switching of the arc, and the displacement of the latter in the breaking chamber in the direction of the extinguishing chamber, a current of a few amperes remains on the mobile contact. This low residual current is at the origin of a phenomenon called "reclaking" which is defined by the disappearance in a few microseconds of the arc present in the extinguishing chamber and appearance of the latter at the movable contact.
  • the present invention solves this problem and proposes an electrical circuit breaker cut-out chamber in which the risks of re-plating are considerably reduced.
  • the present invention relates to a breaking chamber of an electric circuit breaker comprising an arc forming chamber containing a fixed contact and a movable contact, which, at the time of their separation form an arc between them.
  • the formation chamber communicates with the entrance to a second so-called arc extinguishing chamber, and the breaking chamber is characterized in that it further comprises at least one cooler placed inside the formation of an arc so as to cool the gases present around the movable contact after the switching of the arc.
  • the above-mentioned coolers are placed around the movable contact.
  • the above-mentioned coolers are placed between the movable contact and the aforementioned extinguishing chamber, at a predetermined distance from said movable contact.
  • the aforementioned coolers consist of plates or tubes.
  • the above-mentioned coolers comprise two sets of plates parallel to each other, arranged on either side of the movable contact.
  • these plates extend substantially parallel to the movable contact.
  • the above-mentioned coolers comprise two sets of tubes parallel to each other, arranged on either side of the movable contact.
  • these tubes extend substantially perpendicular to the movable contact.
  • the above-mentioned coolers are made of metal or ceramic.
  • Figures 1, 2 and 3 are three schematic sectional views, respectively illustrating three particular embodiments of the invention.
  • FIGS. 1a, 2a and 3a are schematic side views, illustrating the shape and the arrangement of the coolers corresponding respectively to FIGS. 1, 2 and 3.
  • a pole 1 of miniature circuit breaker comprising an insulating housing B, having on its front face an operating handle 2 and on its two narrow lateral faces 3, 4, connection terminals 5, 6.
  • a movable contact 7 At the inside the housing B are housed, as is known per se, a movable contact 7 and a fixed contact 8.
  • the movable contact 7 is controlled by a control mechanism (not shown) connecting the aforementioned lever 2 to the movable contact 7 for the contact closure.
  • a thermal trip device and an electromagnetic trip device (not shown), capable of causing, in the event of an overload or short-circuit, an automatic opening of the contacts.
  • the lower part of the housing B contains a breaking chamber 9 constituted by a first arc-forming chamber 10, communicating with the inlet of a second chamber 11, called the arc extinction chamber, comprising separators 13 constituted by a stack of plates (or sheets) which extend parallel to the base 12 of the housing B.
  • the movable contact 7 extends substantially perpendicularly to the plane of the plates 13, so as to draw an arc between the contacts 7, 8, during their separation, the initial direction of which is substantially parallel to the plates 13.
  • the abovementioned breaking chamber 9 is delimited laterally by arcing horns 14, 15 respectively connected electrically to the two aforementioned terminals 5, 6. These arcing horns 14, 15 are arranged so as to pick up the arc drawn between the contacts 7, 8 during their separation.
  • cooling elements 16 are placed around the movable contact 7 and are intended to cool the hot gases present around the movable contact 7 after the switching of the arc.
  • These coolers 16 consist of two sets 17a, 17b of plates 17 parallel to each other, said sets being disposed respectively on either side of the movable contact 7.
  • these cooling elements 16, or coolers are constituted by two sets 18a, 18b of tubes 18 parallel to each other, said sets 18a, 18b being arranged on either side of the contact mobile 7.
  • these tubes 18, instead of being arranged around the movable contact 7, are placed in the arc-forming chamber 10, at a certain distance from said contact 7, for example at same distance between the separators 13 and the movable contact 7. It will be noted that in this case, the two sets of tubes 18a, 18b will be separated by a distance a greater than the width of the movable contact 7. In these three embodiments, the large exchange surface of the coolers 16 results in significant cooling of the gas.

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

Abstract

The arc breaking chamber (9) incorporates an arc formation chamber (10) enclosing the fixed and moving contacts (8,7) between which an arc is struck at the instant of separation. The cooling elements (16) are placed in the arc formation chamber in order to cool the gases surrounding the moving contact. Preferably, there are two sets of plates arranged parallel to each other on opposite sides of the moving contact. Alternatively, two sets of tubes may be arranged either in the same position or equidistant from the moving contact and arc extinction plates (13).

Description

L'invention concerne la chambre de coupure d'un disjoncteur électrique, comprenant une chambre de formation d'arc renfermant un contact fixe et un contact mobile, lesquels, au moment de leur séparation forment un arc entre eux, ladite chambre de formation communiquant avec l'entrée d'une deuxième chambre, dite d'extinction d'arc.The invention relates to the breaking chamber of an electric circuit breaker, comprising an arc-forming chamber containing a fixed contact and a movable contact, which, at the time of their separation form an arc between them, said formation chamber communicating with the entrance to a second chamber, called the arc extinction chamber.

Dans les disjoncteurs connus, notamment les disjoncteurs miniatures, il a été observé qu'après la commutation de l'arc, et le déplacement de celui-ci dans la chambre de coupure en direction de la chambre d'extinction, un courant de quelques ampères subsiste sur le contact mobile. Ce faible courant résiduel est à l'origine d'un phénomène appelé "reclaquage" qui se définit par la disparition en quelques microsecondes de l'arc présent dans la chambre d'extinction et apparition de celui-ci au niveau du contact mobile.In known circuit breakers, in particular miniature circuit breakers, it has been observed that after the switching of the arc, and the displacement of the latter in the breaking chamber in the direction of the extinguishing chamber, a current of a few amperes remains on the mobile contact. This low residual current is at the origin of a phenomenon called "reclaking" which is defined by the disappearance in a few microseconds of the arc present in the extinguishing chamber and appearance of the latter at the movable contact.

La présente invention résout ce problème et propose une chambre de coupure de disjoncteur électrique dans laquelle les risques de reclaquage sont considérablement réduits.The present invention solves this problem and proposes an electrical circuit breaker cut-out chamber in which the risks of re-plating are considerably reduced.

A cet effet, la présente invention a pour objet une chambre de coupure d'un disjoncteur électrique comprenant une chambre de formation d'arc renfermant un contact fixe et un contact mobile, lesquels, au moment de leur séparation forment un arc entre eux. La chambre de formation communique avec l'entrée d'une deuxième chambre dite d'extinction d'arc, et la chambre de coupure est caractérisée en ce qu'elle comporte en outre au moins un refroidisseur placé à l'intérieur de la chambre de formation d'arc de manière à refroidir les gaz présents autour du contact mobile après la commutation de l'arc.To this end, the present invention relates to a breaking chamber of an electric circuit breaker comprising an arc forming chamber containing a fixed contact and a movable contact, which, at the time of their separation form an arc between them. The formation chamber communicates with the entrance to a second so-called arc extinguishing chamber, and the breaking chamber is characterized in that it further comprises at least one cooler placed inside the formation of an arc so as to cool the gases present around the movable contact after the switching of the arc.

Suivant une réalisation particulière, les refroidisseurs précités sont placés autour du contact mobile .According to a particular embodiment, the above-mentioned coolers are placed around the movable contact.

Suivant une variante de réalisation, les refroidisseurs précités sont placés entre le contact mobile et la chambre d'extinction précitée , à une distance prédéterminée dudit contact mobile .According to an alternative embodiment, the above-mentioned coolers are placed between the movable contact and the aforementioned extinguishing chamber, at a predetermined distance from said movable contact.

Suivant une caractéristique particulière, les refroidisseurs précités sont constitués par des plaques ou bien des tubes.According to a particular characteristic, the aforementioned coolers consist of plates or tubes.

Suivant une première réalisation, les refroidisseurs précités comprennent deux ensembles de plaques parallèles entre elles, disposés de part et d'autre du contact mobile . Avantageusement, ces plaques s'étendent sensiblement parallèlement au contact mobile.According to a first embodiment, the above-mentioned coolers comprise two sets of plates parallel to each other, arranged on either side of the movable contact. Advantageously, these plates extend substantially parallel to the movable contact.

Suivant une variante de réalisation, les refroidisseurs précités comprennent deux ensembles de tubes parallèles entre eux, disposés de part et d'autre du contact mobile . Avantageusement, ces tubes s'étendent sensiblement perpendiculairement au contact mobile.According to an alternative embodiment, the above-mentioned coolers comprise two sets of tubes parallel to each other, arranged on either side of the movable contact. Advantageously, these tubes extend substantially perpendicular to the movable contact.

Avantageusement, les refroidisseurs précités sont réalisés en métal ou en céramique.Advantageously, the above-mentioned coolers are made of metal or ceramic.

Mais d'autres avantages et caractéristiques de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés donnés uniquement à titre d'exemple et dans lesquels :However, other advantages and characteristics of the invention will appear better in the detailed description which follows and which refers to the appended drawings given solely by way of example and in which:

Les figures 1, 2 et 3 sont trois vues en coupe schématiques, illustrant respectivement trois réalisations particulières de l'invention.Figures 1, 2 and 3 are three schematic sectional views, respectively illustrating three particular embodiments of the invention.

Les figures 1a, 2a et 3a sont des vues schématiques de côté, illustrant la forme et l'agencement des refroidisseurs correspondant respectivement aux figures 1, 2 et 3.FIGS. 1a, 2a and 3a are schematic side views, illustrating the shape and the arrangement of the coolers corresponding respectively to FIGS. 1, 2 and 3.

Sur les figures, on voit un pôle 1 de disjoncteur miniature comportant un boîtier isolant B, ayant sur sa face avant une manette de manoeuvre 2 et sur ses deux faces latérales étroites 3, 4, des bornes de connexion 5, 6. A l'intérieur du boîtier B sont logés, comme ceci est connu en soi, un contact mobile 7 et un contact fixe 8. Le contact mobile 7 est commandé par un mécanisme de commande (non représenté) reliant la manette précitée 2 au contact mobile 7 pour la fermeture du contact. Dans ce boîtier B sont également logés un déclencheur thermique et un déclencheur électromagnétique (non représentés), susceptibles de provoquer, en cas de surcharge ou de court-circuit, une ouverture automatique des contacts. La partie inférieure du boîtier B renferme une chambre de coupure 9 constituée par une première chambre de formation d'arc 10, communiquant avec l'entrée d'une deuxième chambre 11, dite d'extinction d'arc, comprenant des séparateurs 13 constitués par un empilage de plaques (ou tôles) qui s'étendent parallèlement à la base 12 du boîtier B.In the figures, we see a pole 1 of miniature circuit breaker comprising an insulating housing B, having on its front face an operating handle 2 and on its two narrow lateral faces 3, 4, connection terminals 5, 6. At the inside the housing B are housed, as is known per se, a movable contact 7 and a fixed contact 8. The movable contact 7 is controlled by a control mechanism (not shown) connecting the aforementioned lever 2 to the movable contact 7 for the contact closure. In this housing B are also housed a thermal trip device and an electromagnetic trip device (not shown), capable of causing, in the event of an overload or short-circuit, an automatic opening of the contacts. The lower part of the housing B contains a breaking chamber 9 constituted by a first arc-forming chamber 10, communicating with the inlet of a second chamber 11, called the arc extinction chamber, comprising separators 13 constituted by a stack of plates (or sheets) which extend parallel to the base 12 of the housing B.

Le contact mobile 7 s'étend sensiblement perpendiculairement au plan des plaques 13, de manière à tirer un arc entre les contacts 7, 8, lors de leur séparation, dont la direction initiale est sensiblement parallèle aux plaques 13. La chambre de coupure précitée 9 est délimitée latéralement par des cornes d'arc 14, 15 reliées respectivement électriquement aux deux bornes précitées 5, 6. Ces cornes d'arc 14, 15 sont agencées de manière à capter l'arc tiré entre les contacts 7, 8 lors de leur séparation.The movable contact 7 extends substantially perpendicularly to the plane of the plates 13, so as to draw an arc between the contacts 7, 8, during their separation, the initial direction of which is substantially parallel to the plates 13. The abovementioned breaking chamber 9 is delimited laterally by arcing horns 14, 15 respectively connected electrically to the two aforementioned terminals 5, 6. These arcing horns 14, 15 are arranged so as to pick up the arc drawn between the contacts 7, 8 during their separation.

Un tel disjoncteur étant bien connu des spécialistes, il sera inutile de décrire plus en détail son agencement ou son fonctionnement.Since such a circuit breaker is well known to specialists, it will be useless to describe in more detail its arrangement or operation.

Suivant la réalisation illustrée sur les figures 1 et 1a, des éléments de refroidissement 16 sont placés autour du contact mobile 7 et sont destinés à refroidir les gaz chauds présents autour du contact mobile 7 après la commutation de l'arc. Ces refroidisseurs 16 sont constitués par deux ensembles 17a, 17b de plaques 17 parallèles entre elles, lesdits ensembles étant disposés respectivement de part et d'autre du contact mobile 7.According to the embodiment illustrated in Figures 1 and 1a, cooling elements 16 are placed around the movable contact 7 and are intended to cool the hot gases present around the movable contact 7 after the switching of the arc. These coolers 16 consist of two sets 17a, 17b of plates 17 parallel to each other, said sets being disposed respectively on either side of the movable contact 7.

Suivant la réalisation illustrée sur les figures 2 et 2a, ces éléments de refroidissement 16, ou refroidisseurs, sont constitués par deux ensembles 18a, 18b de tubes 18 parallèles entre eux, lesdits ensembles 18a, 18b étant disposés de part et d'autre du contact mobile 7.According to the embodiment illustrated in Figures 2 and 2a, these cooling elements 16, or coolers, are constituted by two sets 18a, 18b of tubes 18 parallel to each other, said sets 18a, 18b being arranged on either side of the contact mobile 7.

Suivant la réalisation illustrée sur les figues 3 et 3a, ces tubes 18, au lieu d'être disposés autour du contact mobile 7, sont placés dans la chambre de formation d'arc 10, à une certaine distance dudit contact 7, par exemple à même distance des séparateurs 13 et du contact mobile 7. On notera que dans ce cas, les deux ensembles de tubes 18a, 18b seront séparés par une distance a supérieure à la largeur du contact mobile 7.
Dans ces trois réalisations, la surface d'échange importante des refroidisseurs 16 entraîne un refroidissement significatif du gaz.According to the embodiment illustrated in figs 3 and 3a, these tubes 18, instead of being arranged around the movable contact 7, are placed in the arc-forming chamber 10, at a certain distance from said contact 7, for example at same distance between the separators 13 and the movable contact 7. It will be noted that in this case, the two sets of tubes 18a, 18b will be separated by a distance a greater than the width of the movable contact 7.
In these three embodiments, the large exchange surface of the coolers 16 results in significant cooling of the gas.

Ainsi, après la commutation de l'arc, des vapeurs organiques chaudes dues à l'évaporation des parois isolantes (19) situées entre les chambres de formation et d'extinction, sont formées dans la chambre de coupure 9, (principalement lors de la stagnation de l'arc). Ces vapeurs organiques favorisent l'apparition du phénomène de reclaquage, en particulier lorsqu'elles sont combinées à une augmentation de la tension d'arc observée lors de la pénétration de l'arc dans la chambre.Thus, after the switching of the arc, hot organic vapors due to the evaporation of the insulating walls (19) located between the formation and extinguishing chambers, are formed in the breaking chamber 9, (mainly during the arc stagnation). These organic vapors favor the appearance of the phenomenon of re-plating, in particular when they are combined with an increase in the arc voltage observed during penetration of the arc into the chamber.

Le refroidissement des vapeurs situées au voisinage du contact mobile 7 par les éléments de refroidissement précités 16, permet de diminuer considérablement le risque d'apparition de ce phénomène de reclaquage.The cooling of the vapors located in the vicinity of the movable contact 7 by the aforementioned cooling elements 16 makes it possible to considerably reduce the risk of this phenomenon of re-plating occurring.

Bien entendu l'invention n'est pas limitée aux modes de réalisation décrits et illustrés qui n'ont été donnés qu'à titre d'exemple. C'est ainsi que peuvent être envisagés d'autres formes et agencements de refroidisseurs sans sortir du cadre de l'invention.Of course, the invention is not limited to the embodiments described and illustrated which have been given only by way of example. This is how other forms and arrangements of coolers can be envisaged without departing from the scope of the invention.

Au contraire, l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont effectuées suivant son esprit.On the contrary, the invention includes all the technical equivalents of the means described and their combinations if these are carried out according to the spirit.

Claims (10)

Chambre de coupure d'un disjoncteur électrique comprenant une chambre de formation d'arc renfermant un contact fixe et un contact mobile, lesquels, au moment de leur séparation forment un arc entre eux, ladite chambre de formation communiquant avec l'entrée d'une deuxième chambre dite d'extinction d'arc, caractérisée en ce qu'elle comporte en outre au moins un refroidisseur (16) placé à l'intérieur de la chambre de formation d'arc (10) de manière à refroidir les gaz présents autour du contact mobile (7) après la commutation de l'arc.Interruption chamber of an electric circuit breaker comprising an arc formation chamber containing a fixed contact and a movable contact, which, at the time of their separation form an arc between them, said formation chamber communicating with the entry of a second arc extinction chamber, characterized in that it further comprises at least one cooler (16) placed inside the arc formation chamber (10) so as to cool the gases present around of the movable contact (7) after switching the arc. Chambre de coupure selon la revendication 1, caractérisée en ce que les refroidisseurs précités (16) sont placés autour du contact mobile (7).Cut-off chamber according to claim 1, characterized in that the above-mentioned coolers (16) are placed around the movable contact (7). Chambre de coupure selon la revendication 1, caractérisée en ce que les refroidisseurs précités (16) sont placés entre le contact mobile (7) et la chambre d'extinction précitée (11), à une distance prédéterminée dudit contact mobile (7).Cut-off chamber according to claim 1, characterized in that the above-mentioned coolers (16) are placed between the movable contact (7) and the aforementioned extinguishing chamber (11), at a predetermined distance from said movable contact (7). Chambre de coupure selon l'une quelconque des revendications précédentes, caractérisée en ce que les refroidisseurs précités (16) sont constitués par des plaques (17).Cut-off chamber according to any one of the preceding claims, characterized in that the above-mentioned coolers (16) consist of plates (17). Chambre de coupure selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les refroidisseurs précités (16) sont constitués par des tubes (18).Cut-off chamber according to any one of Claims 1 to 3, characterized in that the above-mentioned coolers (16) consist of tubes (18). Chambre de coupure selon la revendication 4, caractérisée en ce que les refroidisseurs précités (16) comprennent deux ensembles de plaques (17a, 17b) parallèles entre elles, disposés de part et d'autre du contact mobile (7).Switching chamber according to claim 4, characterized in that the above-mentioned coolers (16) comprise two sets of plates (17a, 17b) parallel to each other, arranged on either side of the movable contact (7). Chambre de coupure selon la revendication 5, caractérisée en ce que les refroidisseurs précités comprennent deux ensembles de tubes (18a, 18b) parallèles entre eux, disposés de part et d'autre du contact mobile (7).Cut-off chamber according to claim 5, characterized in that the above-mentioned coolers comprise two sets of tubes (18a, 18b) parallel to each other, arranged on either side of the movable contact (7). Chambre de coupure selon la revendication 6, caractérisée en ce que les plaques précitées (17) s'étendent sensiblement parallèlement au contact mobile (7).Cut-off chamber according to claim 6, characterized in that the above-mentioned plates (17) extend substantially parallel to the movable contact (7). Chambre de coupure selon la revendication 7, caractérisée en ce que les tubes précités (18) s'étendent sensiblement perpendiculairement au contact mobile (7).Cutting chamber according to claim 7, characterized in that the aforementioned tubes (18) extend substantially perpendicular to the movable contact (7). Chambre de coupure selon l'une quelconque des revendications précédentes, caractérisée en ce que les refroidisseurs précités (16) sont réalisés en métal ou en céramique.Cut-off chamber according to any one of the preceding claims, characterized in that the above-mentioned coolers (16) are made of metal or ceramic.
EP19950410128 1994-11-18 1995-11-10 Arc chamber for an electrical circuit breaker Expired - Lifetime EP0713232B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9414006A FR2727240B1 (en) 1994-11-18 1994-11-18 CUTTING CHAMBER OF AN ELECTRIC CIRCUIT BREAKER
FR9414006 1994-11-18

Publications (2)

Publication Number Publication Date
EP0713232A1 true EP0713232A1 (en) 1996-05-22
EP0713232B1 EP0713232B1 (en) 1999-07-28

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EP19950410128 Expired - Lifetime EP0713232B1 (en) 1994-11-18 1995-11-10 Arc chamber for an electrical circuit breaker

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EP (1) EP0713232B1 (en)
DE (1) DE69511046T2 (en)
ES (1) ES2135025T3 (en)
FR (1) FR2727240B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011119148A1 (en) * 2010-03-22 2011-09-29 Siemens Industry, Inc. Arc formation chamber with improved arc compression for circuit breaker.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001802B4 (en) * 2006-12-22 2010-02-25 Abb Ag Electrical switching device
DE102017204942B4 (en) * 2017-03-23 2022-01-20 Siemens Aktiengesellschaft Electromechanical protective switching device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1922747A1 (en) * 1969-05-03 1970-11-05 Bbc Brown Boveri & Cie Arc chamber
EP0183145A2 (en) * 1984-11-27 1986-06-04 Asea Brown Boveri Aktiengesellschaft Electrical switch device, especially a protective power circuit breaker
FR2575861A1 (en) * 1985-01-07 1986-07-11 Merlin Gerin Miniature electric circuit breaker with arc forming chamber
DE3619241A1 (en) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Extinguishing device for a line protection circuit breaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1922747A1 (en) * 1969-05-03 1970-11-05 Bbc Brown Boveri & Cie Arc chamber
EP0183145A2 (en) * 1984-11-27 1986-06-04 Asea Brown Boveri Aktiengesellschaft Electrical switch device, especially a protective power circuit breaker
FR2575861A1 (en) * 1985-01-07 1986-07-11 Merlin Gerin Miniature electric circuit breaker with arc forming chamber
DE3619241A1 (en) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Extinguishing device for a line protection circuit breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8164018B2 (en) 2009-03-23 2012-04-24 Siemens Industry, Inc. Circuit breaker arc chambers and methods for operating same
WO2011119148A1 (en) * 2010-03-22 2011-09-29 Siemens Industry, Inc. Arc formation chamber with improved arc compression for circuit breaker.

Also Published As

Publication number Publication date
ES2135025T3 (en) 1999-10-16
FR2727240A1 (en) 1996-05-24
DE69511046D1 (en) 1999-09-02
DE69511046T2 (en) 2000-02-17
FR2727240B1 (en) 1996-12-13
EP0713232B1 (en) 1999-07-28

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