EP1191565A1 - Configuration of modular electrical devices for dividing the electric arc - Google Patents

Configuration of modular electrical devices for dividing the electric arc Download PDF

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Publication number
EP1191565A1
EP1191565A1 EP00440252A EP00440252A EP1191565A1 EP 1191565 A1 EP1191565 A1 EP 1191565A1 EP 00440252 A EP00440252 A EP 00440252A EP 00440252 A EP00440252 A EP 00440252A EP 1191565 A1 EP1191565 A1 EP 1191565A1
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EP
European Patent Office
Prior art keywords
arc
central part
modular electrical
branches
intermediate sheet
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Granted
Application number
EP00440252A
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German (de)
French (fr)
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EP1191565B1 (en
Inventor
Stéphane Haessler
Francis Deckert
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Hager Electro SAS
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Hager Electro SAS
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Priority to DE60000879T priority Critical patent/DE60000879T2/en
Priority to AT00440252T priority patent/ATE228714T1/en
Priority to PT00440252T priority patent/PT1191565E/en
Priority to EP00440252A priority patent/EP1191565B1/en
Publication of EP1191565A1 publication Critical patent/EP1191565A1/en
Application granted granted Critical
Publication of EP1191565B1 publication Critical patent/EP1191565B1/en
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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
    • 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
    • H01H9/36—Metal parts

Definitions

  • the present invention relates to arc extinguishing devices which equip modular electrical devices, for example of the type breaker.
  • These devices conventionally comprise a fixed contact and a contact which establish an electrical connection when they are in contact with each other on the other and which cuts it when they are separated, voluntarily using a joystick or automatically by tilting a mechanical lock in case of overcurrent or overload on the line.
  • One of the objectives of the invention is to propose a system mechanically simplest possible that is to say that does not change the operation of contacts as they exist in conventional modular devices.
  • the arc extinguishing system of the invention could then be applied to existing devices without requiring a new design of contacts, trigger lock etc ...
  • Another object of the invention is to present a system which occupies a the smallest possible space.
  • the solution that has been chosen is based on a set classic single contact, therefore generating a single arc when separation.
  • the electrical appliance modular comprises means for dividing the electric arc created at the spacing of the contacts in n portions, each of said portions of the arc being directed towards a its own arc extinguishing chamber.
  • the arc is divided into as many portions as there are breaking chambers or extinction in the product.
  • the system of the invention therefore implements two main functions, an arc division function, and an orientation function arc portions thus divided towards their respective extinguishing chambers.
  • the means of dividing the arc include a sheet potential-free intermediary whose location in relation to the sheets of arc conduction on the one hand, and geometry on the other hand allow the arc to split on contact.
  • said intermediate sheet has a central part which first meets the arc, and two branches which develop in two distinct directions substantially opposite and in the same general direction than each initial arc conduction sheet.
  • the central part mainly performs the division function, and secondarily begins the orientation function of arc portions, while the two branches direct said arc portions, in cooperation with arc conduction sheets, towards extinction zones.
  • the central part of the intermediate sheet is oriented substantially perpendicular to the arc when it reaches it.
  • This central part is arranged and oriented so that it is in the natural path of the arc and that it cuts it when it progresses naturally after its creation, because combined magnetic forces, possibly gas blows, and configuration of arc conduction sheets.
  • the intermediate sheet may itself have symmetry by compared to a plane passing through its central part and looking parallel to the direction general arc progression before division.
  • said central part of the sheet intermediate can then be positioned relative to the arc conduction sheets so that the arc undergoes a division substantially in the middle.
  • the central part positioned so as to be located in the natural trajectory of the arc, includes or is close to the axis materializing the direction of progression of said arc.
  • each branch of the intermediate sheet and the sheet of arc conduction which faces it delimit an arc extinguishing chamber.
  • the intermediate sheet has a central part pointing towards the sheets of arc conduction, and two lateral branches looking perpendicular to the axis of the central part, which is substantially equidistant from said conduction sheets arc.
  • the central part and the lateral branches are develop in the same medium plane.
  • the top of the central part is rounded, and connected to the lateral branches by curvilinear portions with an orientation parallel to that arc conduction sheets at their junction with the central part summit, level at which the distance with said arc conduction sheets is minimum and defines the entry of arc extinguishing chambers.
  • the geometry of said intermediate sheet is therefore provided to cut the arc first, then adapt to the changing orientation of the arc conduction sheets so as to perform the function of guiding the arc portions, in the same plane, towards the arc extinction zones.
  • the central part of the intermediate sheet looks parallel to the arc conduction sheets and splits axially in two branches each oriented in front of one of the arc conduction sheets while gradually deviating from it.
  • the arc portions from the division and progressing on either side of said central part of the intermediate sheet are each guided to one of the two branches from the axial division of the central part on the one hand by partitions arranged on either side thereof and moving respectively towards one and the other of these branches, and on the other hand by the shape of the arc conduction sheets.
  • the two arc portions do not progress in the same plane, in two different directions, but on the contrary side by side in the Same direction.
  • the branches from the central part of the sheet intermediate each form an inclined plane developing at two angles of inverse signs and ending with a final portion of pace parallel to said central part.
  • the arc conduction sheets, first centered with respect to the central part, each have a baffle leading to a portion located in face of said final portion.
  • the two arc extinguishing chambers thus defined are side by side, separated by an insulating wall developing from the separation of the part central in two distinct branches.
  • the electrical circuit of the modular electrical appliance very conventionally comprises two lateral electrical terminals (1) and (2), a coil (B), two fixed (4) and mobile (5) contacts respectively, and a member thermal (T) bimetal type.
  • the fixed contact (4) is extended by an arc conduction sheet (7) at the edge a first arc extinguishing chamber.
  • the movable contact (5) is connected via a conductive braid (8) to a sheet (9) connected on the one hand to the terminal (2), and extending on the other hand into a sheet arc conduction (10) defining the second of the arc breaking chambers.
  • the product which is shown in figure 2a is a circuit breaker, which consists of conventional components of a circuit breaker, namely a thermal actuator, a magnetic actuator etc ... on which it is not necessary to carry out a detailed description, since they are not part of the invention as such.
  • the arc breaking chambers are two in number, substantially located between the arc conduction sheets (7) and (10) and an intermediate sheet (11). In this configuration, each room has a pack of sheets of deionization (12, 13) in which the arc is extinguished.
  • the single arc which is visible in figure 2a is then divided in two portions sent respectively to the arc extinguishing chambers limited by the stacks of sheets (12) and (13). These rooms are, in this configuration, in the same medium plane.
  • the intermediate sheet is a hybrid sheet, at the same time free deionization sheet of potential which has the function of splitting the arc and sheet metal of arc which has the function of orienting the arc towards the breaking chambers.
  • Said intermediate sheet (11) comprises a central portion (14) pointing to the fixed (4) and movable (5) contacts, and two lateral branches (15) and (16) located substantially opposite the two sheets arc conduction (7) and (10) respectively.
  • Figures 2a to 2e show the birth of the arc, when the contact mobile (5) moves away from the fixed contact (4).
  • the electric arc then progresses, mainly under the influence of magnetic forces, and switches from contact movable (5) towards the arc conduction sheet (10) at a loop which connects the latter to the sheet (9).
  • This switching appears in Figure 2b.
  • the arc therefore approaches the summit (14) of the intermediate sheet (11). This is achieved in Figure 2c.
  • the summit portion (14) is located exactly on the way to the arch. His summit rounded is followed by two equally rounded portions initiating the lateral branches (15) and (16) and arranged at the entrance to the extinguishing chambers arc as close as possible to the sheets (7) and (10).
  • the direction of propagation of the portions arc follows the bisector of the angle provided by each branch and the sheet opposite. These directions converge as the penetration into said chambers.
  • the two branches of the arch progress in opposition to each other. This configuration is also favorable because this antagonistic situation allows a mutual blowing of the two arcs, leading them towards their extinction chamber respectively.
  • the two branches of the arch are at the level of the packs deionization plates (12) and (13), where the arcs are divided so as to facilitate their extinction.
  • Figures 3a to 3c show the principle of another arc division system in which the two divided portions are also sent to two separate arc extinguishing chambers. Although these figures represent what system independently of any modular electrical device it may well heard to be integrated for example into a circuit breaker as shown in the figures previous or to a conventional circuit breaker.
  • the arc is guided between two arc conduction sheets opposite (21, 22) towards an intermediate sheet (23), itself endowed a central portion (24) from which two branches (25, 26) depart, one of which the other.
  • Each of the arc conduction sheets (21, 22) includes a first portion parallel to each other and superimposed.
  • the orientation of these sheets then diverges: sheet (21) is oriented towards the front of the figure, while sheet (22) is oriented towards the back of the figure.
  • This change of orientation aims to place the conduction sheet arc (21) substantially opposite the branch (26) of the intermediate sheet (23) and conversely to place the arc conduction sheet (22) substantially opposite the branch (25).
  • This facing position is obtained at the level of the deionization plates (27, 28), integrated into two arc chambers in this case arranged side by side.
  • the branches (25, 26) of the intermediate sheet (23) actually constitute inclined planes which diverge from each other, and each aim to remove one of the branches (25, 26) of one of the two initial arc conduction sheets (21, 22).
  • the two arc extinguishing chambers thus defined and comprising respectively the stacks of deionization plates (27 and 28) are separated by an insulating wall (29).
  • Other walls, also insulating, serve to guide the arc portions, as will be shown in more detail below.
  • the electric arc has been divided into two branches after having encountered the central portion (24) of the intermediate sheet (23).
  • said central portion (24) is located in the natural path of the electric arc between the conduction sheets (21 and 22).
  • the upper branch of the electric arc is guided between the arc conduction sheet (21) and the portion central (24) of the intermediate sheet (23) towards the inclined plane of the branch (26), this guide being reinforced by the existence of an oblique insulating wall (30).
  • Branch lower part of the arch is directed towards the inclined plane equipping the branch (25) of the intermediate sheet (23).
  • Figure 3c shows the arcs at said inclined planes (25) and (26).
  • the arc portions then run parallel, and undergo an elongation progressive until reaching a length equivalent to the entry of the sheet packs deionization (27) and (28).
  • FIG. 4 we obtain a propelling magnetic whorl. Indeed, immediately after the division of the arc, the magnetic field that is created in the turn shown in Figure 4 promotes the propulsion of the two arc portions towards their respective breaking chamber.
  • FIG. 5 the second configuration, that of FIGS. 3a to 4 appears seen from the entrance of the double arc extinguishing chamber.
  • This view shows the perfect guide symmetry of the two arc portions with a guide wall (31) corresponding in the lower part to the guide wall (30) cited above.
  • This second configuration can completely be used in conjunction with the first alternative (object of Figures 2a to 2e). It can also be used without pack of deionization plates, with an alternative extinguishing solution and can be used as a replacement for a pack of standard deionization plates.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
  • Connecting Device With Holders (AREA)
  • Pinball Game Machines (AREA)
  • Position Input By Displaying (AREA)

Abstract

The modular circuit breaker has a fixed (4) and a moving contact (5). The moving contact has a release lock which when activated separates the contacts, generating an electric arc. The electric arc is divided into a number of paths across conductor strips towards an extinction chamber.

Description

La présente invention a trait aux dispositifs d'extinction d'arc qui équipent les appareils électriques modulaires par exemple du type disjoncteur.The present invention relates to arc extinguishing devices which equip modular electrical devices, for example of the type breaker.

Ces appareils comportent classiquement un contact fixe et un contact mobile qui établissent une liaison électrique lorsqu'ils sont au contact l'un de l'autre et qui la coupe lorsqu'ils sont séparés, volontairement à l'aide d'une manette de commande ou automatiquement par basculement d'une serrure mécanique en cas de surintensité ou de surcharge sur la ligne.These devices conventionally comprise a fixed contact and a contact which establish an electrical connection when they are in contact with each other on the other and which cuts it when they are separated, voluntarily using a joystick or automatically by tilting a mechanical lock in case of overcurrent or overload on the line.

Lorsque les contacts fixe et mobile s'écartent l'un de l'autre, un arc électrique se créé entre eux. On l'éteint traditionnellement en le déplaçant vers au moins une chambre d'extinction d'arc équipant l'appareil électrique modulaire. Le principe alors utilisé consiste à allonger ou à diviser l'arc jusqu'à ce que la tension nécessaire à son entretien soit supérieure à celle du réseau dans lequel l'appareil est utilisé, entraínant son extinction.When the fixed and mobile contacts move away from each other, an arc electric is created between them. We traditionally extinguish it by moving towards at least one arc extinguishing chamber fitted the modular electrical appliance. The principle then used consists in lengthening or to divide the arc until the tension necessary for its maintenance is greater than that of the network in which the device is used, resulting in its extinction.

Pour faciliter l'extinction de l'arc, il a été proposé dans l'art antérieur d'agencer le contact mobile en pont de contacts rotatif qui coopère avec deux contacts fixes opposés, de manière à obtenir deux arcs en série. Chacun de ces arcs est ensuite dirigé vers une chambre de coupure dans lequel il est éteint. Une telle solution est par exemple divulguée dans le document FR-A-2 682 531.To facilitate the extinction of the arc, it has been proposed in the prior art to arrange the movable contact in a rotary contact bridge which cooperates with two opposite fixed contacts, so as to obtain two arcs in series. Each of these arcs is then directed towards a breaking chamber in which it is off. Such a solution is for example disclosed in document FR-A-2 682 531.

L'utilisation de chambres d'extinction d'arc en série nécessite cependant autant de contacts qu'il faut générer d'arc. Les configurations mécaniques qui permettent de mettre en oeuvre ces systèmes sont par conséquent en général plus compliquées, occupent un volume plus important et sont très défavorables car chaque contact est une source importante de chaleur. Or, dans la conception des appareils modulaire, le gain d'espace et la limitation des échauffements sont primordiaux.The use of arc extinguishing chambers in series requires however, as many contacts as necessary to generate an arc. The configurations mechanical which allow these systems to be implemented are by therefore generally more complicated, occupy a larger volume and are very unfavorable because each contact is an important source of heat. Gold, in the design of modular devices, saving space and limiting warm-ups are essential.

L'un des objectifs de l'invention est de proposer un système mécaniquement le plus simple possible c'est-à-dire qui ne modifie pas le fonctionnement des contacts tels qu'ils existent dans les appareils modulaires classiques.One of the objectives of the invention is to propose a system mechanically simplest possible that is to say that does not change the operation of contacts as they exist in conventional modular devices.

Le système d'extinction d'arc de l'invention pourrait alors être appliqué aux appareils existants sans nécessiter une nouvelle conception des contacts, de la serrure de déclenchement etc...The arc extinguishing system of the invention could then be applied to existing devices without requiring a new design of contacts, trigger lock etc ...

Un autre objectif de l'invention est de présenter un système qui occupe un espace le plus réduit possible.Another object of the invention is to present a system which occupies a the smallest possible space.

Pour remplir ces objectifs, et d'autres encore qui seront soulignés dans le cadre de la présente description, la solution qui a été retenue est basée sur un ensemble à contact unique classique, générant par conséquent un seul arc lors de la séparation.To fulfill these and other objectives which will be highlighted in the context of this description, the solution that has been chosen is based on a set classic single contact, therefore generating a single arc when separation.

Puis, selon une caractéristique essentielle de l'invention, l'appareil électrique modulaire comprend des moyens de diviser l'arc électrique créé à l'écartement des contacts en n portions, chacune desdites portions de l'arc étant dirigée vers une chambre d'extinction d'arc qui lui est propre.Then, according to an essential characteristic of the invention, the electrical appliance modular comprises means for dividing the electric arc created at the spacing of the contacts in n portions, each of said portions of the arc being directed towards a its own arc extinguishing chamber.

En fait, l'arc est divisé en autant de portions qu'il existe de chambres de coupure ou d'extinction dans le produit. Le système de l'invention met donc en oeuvre deux fonctions principales, une fonction de division de l'arc, et une fonction d'orientation des portions d'arc ainsi divisées vers leurs chambres d'extinction respectives.In fact, the arc is divided into as many portions as there are breaking chambers or extinction in the product. The system of the invention therefore implements two main functions, an arc division function, and an orientation function arc portions thus divided towards their respective extinguishing chambers.

Plus précisément, les moyens de diviser l'arc comprennent une tôle intermédiaire libre de potentiel dont la localisation par rapport aux tôles de conduction d'arc d'une part, et la géométrie d'autre part permettent à l'arc de se scinder à son contact.More specifically, the means of dividing the arc include a sheet potential-free intermediary whose location in relation to the sheets of arc conduction on the one hand, and geometry on the other hand allow the arc to split on contact.

Des exemples de configuration permettant cette scission seront montrés dans la suite du texte.Configuration examples allowing this split will be shown in the rest of the text.

Selon une possibilité, ladite tôle intermédiaire présente une partie centrale que rencontre en premier l'arc, et deux branches qui se développent selon deux orientations distinctes sensiblement en regard et dans la même direction générale que chaque tôle de conduction initiale d'arc.According to one possibility, said intermediate sheet has a central part which first meets the arc, and two branches which develop in two distinct directions substantially opposite and in the same general direction than each initial arc conduction sheet.

Pour schématiser, on peut dire que la partie centrale réalise principalement la fonction de division, et commence secondairement la fonction d'orientation des portions d'arc, alors que les deux branches dirigent lesdites portions d'arc, en coopération avec les tôles de conduction d'arc, vers les zones d'extinction.To simplify, we can say that the central part mainly performs the division function, and secondarily begins the orientation function of arc portions, while the two branches direct said arc portions, in cooperation with arc conduction sheets, towards extinction zones.

De fait, la partie centrale de la tôle intermédiaire est orientée sensiblement perpendiculairement à l'arc lorsque celui-ci l'atteint. Cette partie centrale est disposée et orientée de telle sorte qu'elle se trouve dans le trajet naturel de l'arc et qu'elle le coupe lorsque celui-ci progresse naturellement après sa création, du fait combiné des forces magnétiques, éventuellement des soufflages gazeux, et de la configuration des tôles de conduction d'arc.In fact, the central part of the intermediate sheet is oriented substantially perpendicular to the arc when it reaches it. This central part is arranged and oriented so that it is in the natural path of the arc and that it cuts it when it progresses naturally after its creation, because combined magnetic forces, possibly gas blows, and configuration of arc conduction sheets.

Lors du sectionnement de l'arc en deux tronçons, la partie centrale de cette tôle intermédiaire joue en fait le rôle d'un pont diviseur de tension et sa position par rapport à l'arc induit les potentiels relatifs de chaque portion d'arc.When cutting the arc into two sections, the central part of this sheet intermediate actually plays the role of a voltage divider bridge and its position by relation to the arc induces the relative potentials of each portion of arc.

On peut ainsi être amené à jouer sur ladite position, en fonction de la configuration des chambres de coupure, par exemple pour faire correspondre des chambres de capacité d'extinction différente avec des portions d'arc de longueur déséquilibrée.One can thus be brought to play on said position, according to the configuration of the switching chambers, for example to match chambers of different extinguishing capacity with arc portions of length unbalanced.

A l'inverse, il peut être intéressant de conserver un équilibre dans la division de l'arc, par exemple pour respecter une symétrie de configuration de l'appareil électrique.Conversely, it may be interesting to maintain a balance in the division of the arc, for example to respect a symmetry of configuration of the device electric.

De plus, la tôle intermédiaire peut elle-même présenter une symétrie par rapport à un plan passant par sa partie centrale et d'allure parallèle à la direction générale de progression de l'arc avant division.In addition, the intermediate sheet may itself have symmetry by compared to a plane passing through its central part and looking parallel to the direction general arc progression before division.

Dans une perspective générale de symétrie, ladite partie centrale de la tôle intermédiaire peut alors être positionnée par rapport aux tôles de conduction d'arc de telle sorte que l'arc subisse une division sensiblement en son milieu.In a general perspective of symmetry, said central part of the sheet intermediate can then be positioned relative to the arc conduction sheets so that the arc undergoes a division substantially in the middle.

Dans ce cas, la partie centrale, positionnée de manière à se situer dans la trajectoire naturelle de l'arc, comprend ou est voisine de l'axe matérialisant la direction de progression dudit arc.In this case, the central part, positioned so as to be located in the natural trajectory of the arc, includes or is close to the axis materializing the direction of progression of said arc.

Plus précisément, chaque branche de la tôle intermédiaire et la tôle de conduction d'arc qui lui fait face délimitent une chambre d'extinction d'arc.More precisely, each branch of the intermediate sheet and the sheet of arc conduction which faces it delimit an arc extinguishing chamber.

Les branches de l'arc après division sont alors naturellement conduites dans lesdites chambres d'extinction d'arc.The branches of the arch after division are then naturally led in said arc extinguishing chambers.

Selon une configuration particulière mise en oeuvre dans le cadre de l'invention, la tôle intermédiaire comporte une partie centrale pointant vers les tôles de conduction d'arc, et deux branches latérales d'allure perpendiculaire à l'axe de la partie centrale, laquelle est sensiblement équidistante desdites tôles de conduction d'arc. Dans cette configuration, la partie centrale et les branches latérales se développent dans le même plan moyen.According to a particular configuration implemented in the context of the invention, the intermediate sheet has a central part pointing towards the sheets of arc conduction, and two lateral branches looking perpendicular to the axis of the central part, which is substantially equidistant from said conduction sheets arc. In this configuration, the central part and the lateral branches are develop in the same medium plane.

C'est le sommet de cette partie centrale qui rencontre en premier l'arc lorsque celui-ci progresse dans la direction naturelle que lui confèrent les caractéristiques du produit.It is the top of this central part which first meets the arc when this progresses in the natural direction conferred by the characteristics of the product.

Dans cette variante, le sommet de la partie centrale est arrondi, et relié aux branches latérales par des portions curvilignes d'orientation d'allure parallèle à celle des tôles de conduction d'arc au niveau de leur jonction à la partie centrale sommitale, niveau auquel la distance avec lesdites tôles de conduction d'arc est minimale et définit l'entrée des chambres d'extinction d'arc.In this variant, the top of the central part is rounded, and connected to the lateral branches by curvilinear portions with an orientation parallel to that arc conduction sheets at their junction with the central part summit, level at which the distance with said arc conduction sheets is minimum and defines the entry of arc extinguishing chambers.

Ce parallélisme est quasi ponctuel, car les tôles changent continûment d'orientation et leur éloignement respectif s'accroít ensuite au moins sur une partie desdites chambres.This parallelism is almost punctual, because the sheets change continuously orientation and their respective distance increases then at least on part of said chambers.

Dans cette configuration que l'on peut qualifier de "plane", la géométrie de ladite tôle intermédiaire est donc prévue pour couper l'arc dans un premier temps, puis s'adapter à l'orientation changeante des tôles de conduction d'arc de manière à réaliser la fonction de guidage des portions d'arc, dans le même plan, vers les zones d'extinction d'arc.In this configuration which can be described as "plane", the geometry of said intermediate sheet is therefore provided to cut the arc first, then adapt to the changing orientation of the arc conduction sheets so as to perform the function of guiding the arc portions, in the same plane, towards the arc extinction zones.

Selon une autre configuration possible, la partie centrale de la tôle intermédiaire est d'allure parallèle aux tôles de conduction d'arc et se divise axialement en deux branches s'orientant chacune en face d'une des tôles de conduction d'arc tout en s'en écartant progressivement. Dans ce cas, les portions d'arc issues de la division et progressant de part et d'autre de ladite partie centrale de la tôle intermédiaire sont guidées chacune vers l'une des deux branches issues de la division axiale de la partie centrale d'une part par des cloisons disposées de part et d'autre de celle-ci et s'orientant respectivement vers l'une et l'autre de ces branches, et d'autre part par la forme des tôles de conduction d'arc.According to another possible configuration, the central part of the intermediate sheet looks parallel to the arc conduction sheets and splits axially in two branches each oriented in front of one of the arc conduction sheets while gradually deviating from it. In this case, the arc portions from the division and progressing on either side of said central part of the intermediate sheet are each guided to one of the two branches from the axial division of the central part on the one hand by partitions arranged on either side thereof and moving respectively towards one and the other of these branches, and on the other hand by the shape of the arc conduction sheets.

Dans cette seconde variante, les deux portions d'arc ne progressent pas dans le même plan, selon deux sens différents, mais au contraire côte à côte dans le même sens.In this second variant, the two arc portions do not progress in the same plane, in two different directions, but on the contrary side by side in the Same direction.

Selon une possibilité, les branches issues de la partie centrale de la tôle intermédiaire forment chacune un plan incliné se développant suivant deux angles de signes inverses et se terminant par une portion finale d'allure parallèle à ladite partie centrale. Les tôles de conduction d'arc, d'abord centrées par rapport à la partie centrale, présentent chacune une chicane aboutissant à une portion située en face de ladite portion finale. According to one possibility, the branches from the central part of the sheet intermediate each form an inclined plane developing at two angles of inverse signs and ending with a final portion of pace parallel to said central part. The arc conduction sheets, first centered with respect to the central part, each have a baffle leading to a portion located in face of said final portion.

Dans ce cas, les deux chambres d'extinction d'arc ainsi définies sont côte à côte, séparées par une paroi isolante se développant depuis la séparation de la partie centrale en deux branches distinctes.In this case, the two arc extinguishing chambers thus defined are side by side, separated by an insulating wall developing from the separation of the part central in two distinct branches.

L'invention va à présent être décrite plus en détail, notamment en référence aux figures annexées pour lesquelles :

  • la figure 1 représente le circuit électrique d'un disjoncteur selon l'invention ;
  • les figures 2a à 2e montrent une première configuration de celle-ci, chaque figure montrant une autre étape de la progression de l'arc électrique ;
  • les figures 3a à 3c montrent une seconde configuration possible de la division d'arc ;
  • la figure 4 montre la modélisation du système magnétique correspondant ; et
  • la figure 5 est une vue en perspective de l'entrée d'une chambre d'extinction d'arc selon la deuxième configuration.
The invention will now be described in more detail, in particular with reference to the appended figures for which:
  • Figure 1 shows the electrical circuit of a circuit breaker according to the invention;
  • Figures 2a to 2e show a first configuration thereof, each figure showing another step in the progression of the electric arc;
  • Figures 3a to 3c show a second possible configuration of the arc division;
  • FIG. 4 shows the modeling of the corresponding magnetic system; and
  • Figure 5 is a perspective view of the entrance to an arc extinguishing chamber according to the second configuration.

En référence à la figure 1, le circuit électrique de l'appareil électrique modulaire comprend de manière très classique deux bornes électriques latérales (1) et (2), une bobine (B), deux contacts respectivement fixe (4) et mobile (5), et un organe thermique (T) de type bilame.Referring to Figure 1, the electrical circuit of the modular electrical appliance very conventionally comprises two lateral electrical terminals (1) and (2), a coil (B), two fixed (4) and mobile (5) contacts respectively, and a member thermal (T) bimetal type.

Le contact fixe (4) est prolongé par une tôle de conduction d'arc (7) en bordure d'une première chambre d'extinction d'arc.The fixed contact (4) is extended by an arc conduction sheet (7) at the edge a first arc extinguishing chamber.

De même, le contact mobile (5) est relié via une tresse conductrice (8) à une tôle (9) connectée d'une part à la borne (2), et se prolongeant d'autre part en une tôle de conduction d'arc (10) délimitant la seconde des chambres de coupure d'arc.Similarly, the movable contact (5) is connected via a conductive braid (8) to a sheet (9) connected on the one hand to the terminal (2), and extending on the other hand into a sheet arc conduction (10) defining the second of the arc breaking chambers.

Le produit qui est montré en figure 2a est un disjoncteur, qui se compose des composants classiques d'un disjoncteur, à savoir un actionneur thermique, un actionneur magnétique etc... sur lesquels il n'est pas nécessaire de procéder à une description détaillée, car ils ne font pas partie de l'invention en tant que telle. Selon l'invention, les chambres de coupure d'arc sont au nombre de deux, sensiblement situées entre les tôles de conduction d'arc (7) et (10) et une tôle intermédiaire (11). Dans cette configuration, chaque chambre est dotée d'un pack de tôles de déionisation (12, 13) dans lesquelles l'arc est éteint. Comme cela sera manifeste dans les figures suivantes, l'unique arc qui est visible en figure 2a est ensuite divisé en deux portions envoyées respectivement vers les chambres d'extinction d'arc limités par les empilements de tôles (12) et (13). Ces chambres sont, dans cette configuration, dans le même plan moyen.The product which is shown in figure 2a is a circuit breaker, which consists of conventional components of a circuit breaker, namely a thermal actuator, a magnetic actuator etc ... on which it is not necessary to carry out a detailed description, since they are not part of the invention as such. according to the invention, the arc breaking chambers are two in number, substantially located between the arc conduction sheets (7) and (10) and an intermediate sheet (11). In this configuration, each room has a pack of sheets of deionization (12, 13) in which the arc is extinguished. As will be evident in the following figures, the single arc which is visible in figure 2a is then divided in two portions sent respectively to the arc extinguishing chambers limited by the stacks of sheets (12) and (13). These rooms are, in this configuration, in the same medium plane.

La tôle intermédiaire est une tôle hybride, à la fois tôle de déionisation libre de potentiel qui a pour fonction de scinder l'arc et tôle d'arc qui a pour fonction d'orienter l'arc vers les chambres de coupure. Ladite tôle intermédiaire (11) comporte une portion centrale (14) pointant vers les contacts fixe (4) et mobile (5), et deux branches latérales (15) et (16) situées sensiblement en vis-à-vis des deux tôles de conduction d'arc respectivement (7) et (10).The intermediate sheet is a hybrid sheet, at the same time free deionization sheet of potential which has the function of splitting the arc and sheet metal of arc which has the function of orienting the arc towards the breaking chambers. Said intermediate sheet (11) comprises a central portion (14) pointing to the fixed (4) and movable (5) contacts, and two lateral branches (15) and (16) located substantially opposite the two sheets arc conduction (7) and (10) respectively.

Les figures 2a à 2e montrent la naissance de l'arc, au moment où le contact mobile (5) s'écarte du contact fixe (4). L'arc électrique progresse ensuite, principalement sous l'influence de forces magnétiques, et commute du contact mobile (5) vers la tôle de conduction d'arc (10) au niveau d'une boucle qui relie cette dernière à la tôle (9). Cette commutation apparaít en figure 2b. Dans sa progression naturelle, l'arc se rapproche par conséquent de la partie sommitale (14) de la tôle intermédiaire (11). Celle-ci est atteinte en figure 2c.Figures 2a to 2e show the birth of the arc, when the contact mobile (5) moves away from the fixed contact (4). The electric arc then progresses, mainly under the influence of magnetic forces, and switches from contact movable (5) towards the arc conduction sheet (10) at a loop which connects the latter to the sheet (9). This switching appears in Figure 2b. In his natural progression, the arc therefore approaches the summit (14) of the intermediate sheet (11). This is achieved in Figure 2c.

L'arc se divise alors en deux (voir figure 2d) dans le même plan, les deux portions respectives étant dès lors orientées d'une part entre la tôle de conduction d'arc (7) et la branche latérale (15) de la tôle intermédiaire (11), et d'autre part entre la tôle de conduction d'arc (10) et la branche latérale (16) de la tôle intermédiaire (11).The arc then splits in two (see Figure 2d) in the same plane, both respective portions being therefore oriented on the one hand between the conduction sheet arc (7) and the lateral branch (15) of the intermediate sheet (11), and on the other hand between the arc conduction sheet (10) and the lateral branch (16) of the intermediate sheet (11).

La portion sommitale (14) se trouve exactement sur le chemin de l'arc. Son arrondi sommital est suivi de deux portions également arrondies amorçant les branches latérales (15) et (16) et disposées à l'entrée des chambres d'extinction d'arc au plus près des tôles (7) et (10). La direction de propagation des portions d'arc suit la bissectrice de l'angle fournie par chaque branche et la tôle en vis-à-vis. Ces directions convergent à mesure de la pénétration dans lesdites chambres. Les deux branches de l'arc progressent en opposition l'une de l'autre. Cette configuration est également favorable car cette situation antagoniste permet un soufflage mutuel des deux arcs, les entraínant vers leur chambre d'extinction respective.The summit portion (14) is located exactly on the way to the arch. His summit rounded is followed by two equally rounded portions initiating the lateral branches (15) and (16) and arranged at the entrance to the extinguishing chambers arc as close as possible to the sheets (7) and (10). The direction of propagation of the portions arc follows the bisector of the angle provided by each branch and the sheet opposite. These directions converge as the penetration into said chambers. The two branches of the arch progress in opposition to each other. This configuration is also favorable because this antagonistic situation allows a mutual blowing of the two arcs, leading them towards their extinction chamber respectively.

En référence à la figure 2e, les deux branches de l'arc sont au niveau des packs de tôles de déionisation (12) et (13), où les arcs sont divisés de manière à faciliter leur extinction.Referring to Figure 2e, the two branches of the arch are at the level of the packs deionization plates (12) and (13), where the arcs are divided so as to facilitate their extinction.

La configuration particulière des chambres d'arc telle que montrée aux figures 2a à 2e vise donc à scinder l'arc en deux branches, qu'il est beaucoup plus facile d'éteindre qu'un unique arc électrique soumis à la tension du réseau.The particular configuration of the arc chambers as shown in Figures 2a in 2e therefore aims to split the arc into two branches, which is much easier to extinguish only one electric arc subjected to the network voltage.

En fait, l'existence de deux packs de tôle de déionisation distincts confère au produit une plus grande flexibilité géométrique à nombre de tôle égal.In fact, the existence of two separate deionization sheet packs gives the produces greater geometric flexibility with the same number of sheets.

Il est en outre plus facile, du fait de la division, d'augmenter le nombre des tôles et d'accélérer ainsi la coupure de l'arc par allongement, augmentant corollairement sa tension. On peut également jouer sur la symétrie du produit, en proposant un nombre relatif de tôles de déionisation qui correspond aux potentiels relatifs des deux portions d'arcs après division.It is also easier, because of the division, to increase the number of sheets and thus accelerate the arc cutting by elongation, correspondingly increasing his tension. We can also play on the symmetry of the product, by proposing a relative number of deionization plates which corresponds to the relative potentials of two portions of arches after division.

Les figures 3a à 3c montrent le principe d'un autre système de division de l'arc dans lequel les deux portions divisées sont également envoyées à deux chambres d'extinction d'arc distinctes. Bien que ces figures représentent ce système indépendamment de tout appareil électrique modulaire, il peut bien entendu être intégré par exemple à un disjoncteur tel que montré dans les figures précédentes ou à un disjoncteur conventionnel.Figures 3a to 3c show the principle of another arc division system in which the two divided portions are also sent to two separate arc extinguishing chambers. Although these figures represent what system independently of any modular electrical device it may well heard to be integrated for example into a circuit breaker as shown in the figures previous or to a conventional circuit breaker.

En référence à la figure 3a, l'arc est guidé entre deux tôles de conduction d'arc opposées (21, 22) en direction d'une tôle intermédiaire (23), elle-même dotée d'une portion centrale (24) d'où partent deux branches (25, 26) qui s'écartent l'une de l'autre.Referring to Figure 3a, the arc is guided between two arc conduction sheets opposite (21, 22) towards an intermediate sheet (23), itself endowed a central portion (24) from which two branches (25, 26) depart, one of which the other.

Chacune des tôles de conduction d'arc (21, 22) comprend une première portion parallèle entre elles et superposées. L'orientation de ces tôles diverge ensuite : la tôle (21) s'oriente vers le devant de la figure, alors que la tôle (22) s'oriente vers l'arrière de la figure. Ce changement d'orientation vise à placer la tôle de conduction d'arc (21) sensiblement en face de la branche (26) de la tôle intermédiaire (23) et inversement à placer la tôle de conduction d'arc (22) sensiblement en face de la branche (25). Ce positionnement en vis-à-vis est obtenu au niveau des packs de tôles de déionisation (27, 28), intégrés à deux chambres d'arc en l'occurrence disposées côte à côte.Each of the arc conduction sheets (21, 22) includes a first portion parallel to each other and superimposed. The orientation of these sheets then diverges: sheet (21) is oriented towards the front of the figure, while sheet (22) is oriented towards the back of the figure. This change of orientation aims to place the conduction sheet arc (21) substantially opposite the branch (26) of the intermediate sheet (23) and conversely to place the arc conduction sheet (22) substantially opposite the branch (25). This facing position is obtained at the level of the deionization plates (27, 28), integrated into two arc chambers in this case arranged side by side.

Les branches (25, 26) de la tôle intermédiaire (23) constituent en réalité des plans inclinés qui divergent l'un de l'autre, et visent chacun à écarter une des branches (25, 26) d'une des deux tôles de conduction d'arc initiales (21, 22).The branches (25, 26) of the intermediate sheet (23) actually constitute inclined planes which diverge from each other, and each aim to remove one of the branches (25, 26) of one of the two initial arc conduction sheets (21, 22).

Les deux chambres d'extinction d'arc ainsi définies et comportant respectivement les empilements de tôles de déionisation (27 et 28) sont séparées par une paroi isolante (29). D'autres parois, également isolantes, servent à guider les portions d'arc, comme cela sera montré plus en détail dans la suite.The two arc extinguishing chambers thus defined and comprising respectively the stacks of deionization plates (27 and 28) are separated by an insulating wall (29). Other walls, also insulating, serve to guide the arc portions, as will be shown in more detail below.

En référence à la figure 3b, l'arc électrique a été divisé en deux branches après avoir rencontré la portion centrale (24) de la tôle intermédiaire (23). Comme dans la configuration précédente, ladite portion centrale (24) est située dans le trajet naturel de l'arc électrique entre les tôles de conduction (21 et 22). La branche supérieure de l'arc électrique est guidée entre la tôle de conduction d'arc (21) et la portion centrale (24) de la tôle intermédiaire (23) vers le plan incliné de la branche (26), ce guidage étant renforcé par l'existence d'une paroi (30) isolante oblique. La branche inférieure de l'arc est quant à elle dirigée vers le plan incliné équipant la branche (25) de la tôle intermédiaire (23).With reference to FIG. 3b, the electric arc has been divided into two branches after having encountered the central portion (24) of the intermediate sheet (23). As in the previous configuration, said central portion (24) is located in the natural path of the electric arc between the conduction sheets (21 and 22). The upper branch of the electric arc is guided between the arc conduction sheet (21) and the portion central (24) of the intermediate sheet (23) towards the inclined plane of the branch (26), this guide being reinforced by the existence of an oblique insulating wall (30). Branch lower part of the arch is directed towards the inclined plane equipping the branch (25) of the intermediate sheet (23).

La figure 3c montre les arcs au niveau desdits plans inclinés (25) et (26). Les portions d'arc cheminent alors parallèlement, et subissent un allongement progressif jusqu'à atteindre une longueur équivalente à l'entrée des packs de tôles de déionisation (27) et (28). Si l'on reprend le schéma de la figure 3c en termes de boucles de courant, on obtient le schéma présenté à la figure 4. On obtient alors un effet de spire magnétique propulsive. En effet, dès après la division de l'arc, le champ magnétique qui se crée dans la spire schématisée en figure 4 favorise la propulsion des deux portions d'arc vers leur chambre de coupure respective.Figure 3c shows the arcs at said inclined planes (25) and (26). The arc portions then run parallel, and undergo an elongation progressive until reaching a length equivalent to the entry of the sheet packs deionization (27) and (28). If we take the diagram of Figure 3c in terms of current loops, we obtain the diagram presented in figure 4. We then obtain a propelling magnetic whorl. Indeed, immediately after the division of the arc, the magnetic field that is created in the turn shown in Figure 4 promotes the propulsion of the two arc portions towards their respective breaking chamber.

En référence à la figure 5, la seconde configuration, celle des figures 3a à 4 apparaít vue depuis l'entrée de la double chambre d'extinction d'arc. Cette vue permet de montrer la parfaite symétrie de guidage des deux portions d'arc avec une paroi de guidage (31) répondant dans la partie inférieure à la paroi de guidage (30) précitée.With reference to FIG. 5, the second configuration, that of FIGS. 3a to 4 appears seen from the entrance of the double arc extinguishing chamber. This view shows the perfect guide symmetry of the two arc portions with a guide wall (31) corresponding in the lower part to the guide wall (30) cited above.

Cette deuxième configuration peut tout à fait être utilisée conjointement à la première alternative (objet des figures 2a à 2e). Elle peut également être utilisée sans pack de tôles de déionisation, avec une solution d'extinction alternative et peut être utilisée en substitution d'un pack de tôles de déionisation standard.This second configuration can completely be used in conjunction with the first alternative (object of Figures 2a to 2e). It can also be used without pack of deionization plates, with an alternative extinguishing solution and can be used as a replacement for a pack of standard deionization plates.

Il est à cet égard important de souligner que les configurations qui ont été décrites ci-dessus ne sont que des exemples de l'invention, qui ne sont pas limitatifs de celle-ci.In this regard, it is important to emphasize that the configurations that have been described above are only examples of the invention, which are not limiting of it.

L'invention englobe au contraire toutes les variantes de forme et de configuration qui sont à la portée de l'homme de l'art.The invention, on the contrary, encompasses all variants of shape and configuration which are within the reach of ordinary skill in the art.

Claims (11)

Appareil électrique modulaire comportant au moins un contact fixe et un contact mobile, ce dernier étant solidaire d'une serrure de déclenchement actionnée par des moyens de déclenchement provoquant l'écartement des contacts, et des tôles de conduction d'arc conduisant un arc électrique généré entre lesdits contacts dans au moins une chambre d'extinction d'arc, caractérisé en ce qu'il comprend des moyens de diviser l'arc électrique créé à l'écartement des contacts en n portions, chacune desdites portions de l'arc étant dirigée vers une chambre d'extinction d'arc qui lui est propre.Modular electrical device comprising at least one fixed contact and one movable contact, the latter being integral with a tripping lock actuated by tripping means causing the spacing of the contacts, and arc conduction sheets conducting an electric arc generated between said contacts in at least one arc extinguishing chamber, characterized in that it comprises means for dividing the electric arc created at the spacing of the contacts into n portions, each of said portions of the arc being directed towards its own arc extinguishing chamber. Appareil modulaire selon la revendication précédente, caractérisé en ce que lesdits moyens de diviser l'arc comprennent une tôle intermédiaire libre de potentiel dont la localisation par rapport aux tôles de conduction d'arc qui l'y mène d'une part, et la géométrie d'autre part permettent une commutation naturelle de l'arc sur ladite tôle à mesure que celui-ci progresse, immédiatement suivie d'une division de l'arc.Modular apparatus according to the preceding claim, characterized in that said means for dividing the arc comprise an intermediate sheet free of potential, the location of which relative to the arc conduction sheets which lead it thereon, and the geometry on the other hand allow a natural switching of the arc on said sheet as it progresses, immediately followed by a division of the arc. Appareil électrique modulaire selon la revendication précédente, caractérisé en ce que ladite tôle intermédiaire présente une partie centrale que l'arc atteint en premier, et deux branches qui se développent selon deux orientations distinctes respectivement sensiblement en regard et dans la même direction générale que chaque tôle de conduction d'arc.Modular electrical device according to the preceding claim, characterized in that said intermediate plate has a central part which the arc reaches first, and two branches which develop in two distinct orientations respectively substantially opposite and in the same general direction as each plate arc conduction. Appareil électrique modulaire selon la revendication précédente, caractérisé en ce que la partie centrale de la tôle intermédiaire est orientée sensiblement perpendiculairement à l'arc lorsque celui-ci y commute.Modular electrical appliance according to the preceding claim, characterized in that the central part of the intermediate sheet is oriented substantially perpendicular to the arc when the latter commutes there. Appareil électrique modulaire selon l'une des revendications 3 et 4, caractérisé en ce que chaque branche de la tôle intermédiaire et la tôle de conduction d'arc disposée en vis-à-vis délimitent une chambre d'extinction d'arc.Modular electrical device according to one of claims 3 and 4, characterized in that each branch of the intermediate sheet and the arc conduction sheet disposed opposite define an arc extinguishing chamber. Appareil électrique modulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que la tôle intermédiaire comporte une partie centrale pointant vers les tôles de conduction d'arc, et deux branches latérales d'allure perpendiculaire à l'axe de la partie centrale, ladite partie centrale, sensiblement équidistante desdites tôles de conduction, et les branches latérales se développant dans le même plan moyen.Modular electrical appliance according to any one of the preceding claims, characterized in that the intermediate sheet comprises a central part pointing towards the arc conduction sheets, and two lateral branches of shape which are perpendicular to the axis of the central part, said central part, substantially equidistant from said conduction sheets, and the lateral branches developing in the same mean plane. Appareil électrique modulaire selon la revendication précédente, caractérisé en ce que le sommet de la partie centrale est arrondi et relié aux branches latérales par des portions curvilignes d'orientation d'allure parallèle à celle des tôles de conduction d'arc au niveau de leur jonction à la partie centrale sommitale, niveau auquel la distance avec les tôles de conduction d'arc est minimale et définit l'entrée desdites chambres d'extinction d'arc.Modular electrical appliance according to the preceding claim, characterized in that the apex of the central part is rounded and connected to the lateral branches by curvilinear portions of orientation with an appearance parallel to that of the arc conduction sheets at their junction at the top central part, level at which the distance with the arc conduction sheets is minimum and defines the entry of said arc extinguishing chambers. Appareil électrique modulaire selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la partie centrale de la tôle intermédiaire est d'allure parallèle aux tôles de conduction d'arc et se divise axialement en deux branches s'orientant chacune en face d'une des tôles de conductions d'arc, tout en s'en écartant progressivement.Modular electrical appliance according to any one of Claims 1 to 5, characterized in that the central part of the intermediate sheet has an appearance parallel to the arc conduction sheets and is divided axially into two branches, each facing opposite of one of the arc conduction sheets, while gradually moving away from it. Appareil électrique modulaire selon la revendication précédente, caractérisé en ce que les portions d'arc issues de la division et progressant de part et d'autre de la partie centrale de la tôle intermédiaire sont guidées chacune vers l'une des deux branches issues de la division axiale de la partie centrale d'une part par des cloisons disposées de part et d'autre de celle-ci et s'orientant respectivement vers l'une et l'autre de ces branches, et d'autre part par la forme des tôles de conduction d'arc.Modular electrical device according to the preceding claim, characterized in that the arc portions from the division and progressing on either side of the central part of the intermediate sheet are each guided towards one of the two branches from the axial division of the central part on the one hand by partitions arranged on either side thereof and orienting respectively towards one and the other of these branches, and on the other hand by the shape of the arc conduction sheets. Appareil électrique modulaire selon l'une des revendications 8 et 9, caractérisé en ce que les branches issues de la partie centrale de la tôle intermédiaire forment chacune un plan incliné se développant suivant deux angles de signes inverses se terminant par une portion finale d'allure parallèle à ladite partie centrale, les tôles de conduction d'arc, d'abord centrées par rapport à la partie centrale, présentant ensuite chacune une chicane aboutissant à une portion décalée située en face de ladite portion finale de chaque branche issue de ladite partie centrale.Modular electrical appliance according to either of Claims 8 and 9, characterized in that the branches originating from the central part of the intermediate sheet each form an inclined plane developing along two angles of opposite signs ending in a final portion of shape parallel to said central part, the arc conduction sheets, first centered with respect to the central part, each then having a baffle leading to an offset portion located opposite said final portion of each branch from said central part . Appareil électrique modulaire selon l'une des revendications 6 à 10, caractérisé en ce que la tôle intermédiaire présente une symétrie par rapport à un plan passant par sa partie centrale et d'allure parallèle à la direction générale de progression de l'arc avant division.Modular electrical appliance according to one of Claims 6 to 10, characterized in that the intermediate sheet has symmetry with respect to a plane passing through its central part and having an appearance parallel to the general direction of progression of the arc before division .
EP00440252A 2000-09-25 2000-09-25 Configuration of modular electrical devices for dividing the electric arc Expired - Lifetime EP1191565B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE60000879T DE60000879T2 (en) 2000-09-25 2000-09-25 Configuration of modular electrical devices for the division of the electric arc
AT00440252T ATE228714T1 (en) 2000-09-25 2000-09-25 CONFIGURATION OF MODULAR ELECTRICAL APPARATUS FOR DIVISION OF THE ELECTRIC ARC
PT00440252T PT1191565E (en) 2000-09-25 2000-09-25 CONFIGURATIONS OF MODULAR ELECTRICAL APPLIANCES WITH THE OBJECTIVE OF DIVIDING THE ELECTRIC BALL
EP00440252A EP1191565B1 (en) 2000-09-25 2000-09-25 Configuration of modular electrical devices for dividing the electric arc

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EP00440252A EP1191565B1 (en) 2000-09-25 2000-09-25 Configuration of modular electrical devices for dividing the electric arc

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251532A2 (en) * 2001-04-20 2002-10-23 ABB PATENT GmbH Switchgear for an electric installation
DE102011089234B4 (en) * 2010-12-21 2021-02-04 Siemens Aktiengesellschaft Arc extinguishing device and circuit breaker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1124186A (en) * 1955-03-29 1956-10-05 Comp Generale Electricite Electric switch with cut-off in a gaseous medium
US3511950A (en) * 1968-12-23 1970-05-12 Allis Chalmers Mfg Co Arc chute
FR2701334A1 (en) * 1993-02-05 1994-08-12 Alsthom Gec Arc blow-out chimney for a contactor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1124186A (en) * 1955-03-29 1956-10-05 Comp Generale Electricite Electric switch with cut-off in a gaseous medium
US3511950A (en) * 1968-12-23 1970-05-12 Allis Chalmers Mfg Co Arc chute
FR2701334A1 (en) * 1993-02-05 1994-08-12 Alsthom Gec Arc blow-out chimney for a contactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251532A2 (en) * 2001-04-20 2002-10-23 ABB PATENT GmbH Switchgear for an electric installation
DE102011089234B4 (en) * 2010-12-21 2021-02-04 Siemens Aktiengesellschaft Arc extinguishing device and circuit breaker

Also Published As

Publication number Publication date
DE60000879D1 (en) 2003-01-09
PT1191565E (en) 2003-04-30
DE60000879T2 (en) 2003-10-09
ATE228714T1 (en) 2002-12-15
EP1191565B1 (en) 2002-11-27

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