EP3035363B1 - Arc extinguishing chamber for electrical circuit breaker and circuit breaker comprising such a chamber - Google Patents

Arc extinguishing chamber for electrical circuit breaker and circuit breaker comprising such a chamber Download PDF

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Publication number
EP3035363B1
EP3035363B1 EP15194907.0A EP15194907A EP3035363B1 EP 3035363 B1 EP3035363 B1 EP 3035363B1 EP 15194907 A EP15194907 A EP 15194907A EP 3035363 B1 EP3035363 B1 EP 3035363B1
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EP
European Patent Office
Prior art keywords
separators
opening
group
arc
circuit breaker
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EP15194907.0A
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German (de)
French (fr)
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EP3035363A1 (en
Inventor
Hervé Vallier
Loïc Rondot
Jean-Claude Ramirez
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 Industries SAS
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Publication of EP3035363A1 publication Critical patent/EP3035363A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/08—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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/20—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • 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
    • H01H2009/365—Metal parts using U-shaped plates

Definitions

  • This extinction chamber makes it possible to contribute to limiting the short-circuit current by extinguishing the arc in said chamber.
  • the subject of the present invention is a breaking chamber of the kind mentioned above, this chamber being characterized in that the shape of the separators varies progressively from one separator to the next, or by group of identical separators of a group to the other, or a mixture of the two, such that this shape changes from the V having the largest opening area to the V having the smallest opening area, from the magnetic trigger up to the switching horn.
  • the "V" of the separators will be less open, in the sense that the opening 7 formed by the V will have a smaller surface area, which may be go as far as presenting a semicircular shape as illustrated on the figure 1 .

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  • Arc-Extinguishing Devices That Are Switches (AREA)

Description

DOMAINE TECHNIQUETECHNICAL AREA

L'invention concerne 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, ladite chambre de formation communiquant avec l'entrée d'une deuxième chambre dite d'extinction d'arc comportant un empilage de séparateurs s'étendant sensiblement parallèlement les uns par rapport aux autres, ce contact mobile s'étendant sensiblement perpendiculairement au plan des séparateurs, de manière à tirer un arc entre les contacts lors de leur séparation, dont la direction initiale est sensiblement parallèle auxdits séparateurs, ces séparateurs présentant du côté du contact mobile, une ouverture destinée à faciliter l'insertion de l'arc, ledit disjoncteur comportant un déclencheur magnétique situé du côté des contacts fixe et mobile et une corne de commutation située du côté opposé.The invention relates to a circuit breaker 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 training chamber communicating with the input of a second so-called arc extinction chamber comprising a stack of separators extending substantially parallel to each other, this moving contact extending substantially perpendicular to the plane of the separators, so as to draw an arc between the contacts during their separation, whose initial direction is substantially parallel to said separators, these separators having on the side of the moving contact, an opening intended to facilitate the insertion of the arc, said circuit breaker comprising a magnetic trigger located on the side of the fixed and mobile contacts and a switching horn located on the opposite side.

ETAT DE LA TECHNIQUE ANTERIEURESTATE OF THE PRIOR ART

Dans les disjoncteurs connus, comme par exemple celui décrit dans le document FR 2 814 851 , et notamment les disjoncteurs miniatures, après la commutation de l'arc, celui-ci se déplace en direction de la chambre d'extinction d'arc. Cette chambre d'extinction d'arc comporte des séparateurs (ou ailettes) constitués de plaques empilées, lesquelles s'étendent sensiblement parallèlement au plan de la base du disjoncteur, par laquelle base le disjoncteur est destiné à être monté sur un support de montage.In known circuit breakers, as for example that described in the document FR 2,814,851 , and in particular miniature circuit-breakers, after switching the arc, it moves towards the arc extinction chamber. This arc extinction chamber comprises separators (or fins) consisting of stacked plates, which extend substantially parallel to the plane of the base of the circuit breaker, by which base the circuit breaker is intended to be mounted on a mounting bracket.

Cette chambre d'extinction permet de contribuer à limiter le courant de court-circuit par extinction de l'arc dans ladite chambre.This extinction chamber makes it possible to contribute to limiting the short-circuit current by extinguishing the arc in said chamber.

Entre le moment où l'arc s'insère dans la chambre et le moment où il s'éteint, la tension d'arc doit s'élever rapidement afin de limiter le courant et par suite, engendrer une contrainte thermique la moins élevée possible.Between the moment the arc enters the chamber and the moment it goes out, the arc voltage must rise rapidly in order to limit the current and consequently generate the lowest possible thermal stress.

En général, l'arc ne s'insère pas de façon homogène dans les séparateurs. Afin de permettre d'améliorer cette insertion, Il est connu de pourvoir les séparateurs de fentes, généralement en forme de V plus ou moins ouverts.In general, the arc does not fit seamlessly into the separators. In order to improve this insertion, it is known to provide slit separators, generally V-shaped more or less open.

Cette non homogénéité d'insertion entraîne une tension d'arc à l'origine de nombreux phénomènes dits de « reclaquage », lesquels se définissent principalement par une diminution de la tension d'arc et donc de l'effet limiteur du disjoncteur.This non-homogeneity of insertion causes an arc voltage at the origin of many so-called "reclasking" phenomena, which are mainly defined by a decrease in the arc voltage and therefore the limiter effect of the circuit breaker.

EXPOSE DE L'INVENTIONSUMMARY OF THE INVENTION

La présente invention résout ces problèmes et propose une chambre de coupure pour un disjoncteur dans laquelle l'insertion de l'arc dans la chambre d'extinction d'arc est rendue plus homogène, ceci permettant de diminuer considérablement les effets de reclaquage thermiques générés lors de la coupure et de là, de limiter considérablement les risques de fusion du boîtier, ainsi qu'un disjoncteur comportant une telle chambre.The present invention solves these problems and proposes a breaking chamber for a circuit breaker in which the insertion of the arc into the arc extinguishing chamber is made more homogeneous, thereby considerably reducing the thermal reclasking effects generated during from the cut and from there, considerably limit the risk of melting of the housing, and a circuit breaker comprising such a chamber.

A cet effet, la présente invention a pour objet une chambre de coupure du genre précédemment mentionné, cette chambre étant caractérisée en ce que la forme des séparateurs varie de manière progressive d'un séparateur au suivant, ou par groupe de séparateurs identiques d'un groupe à l'autre, ou un mélange des deux, de telle manière que cette forme évolue du V présentant une surface d'ouverture la plus grande au V présentant une surface d'ouverture la plus petite, en allant du déclencheur magnétique jusqu'à la corne de commutation.For this purpose, the subject of the present invention is a breaking chamber of the kind mentioned above, this chamber being characterized in that the shape of the separators varies progressively from one separator to the next, or by group of identical separators of a group to the other, or a mixture of the two, such that this shape changes from the V having the largest opening area to the V having the smallest opening area, from the magnetic trigger up to the switching horn.

On obtient grâce à ces caractéristiques, une meilleure insertion de l'arc dans les ailettes, ce qui diminue les effets de reclaquage. La forme de la chambre de coupure permet également d'augmenter la masse des ailettes fortement sollicitées pendant la coupure. Cette augmentation de masse permet de diminuer les effets post-coupure de fonte du produit générés par le rayonnement thermique des ailettes sur le boîtier plastique des disjoncteurs après la coupure.Thanks to these characteristics, a better insertion of the arc into the fins, which reduces the effects of reclamation. The shape of the interrupting chamber also makes it possible to increase the mass of the fins strongly stressed during the cut. This increase in mass makes it possible to reduce the post-product melting effects generated by the thermal radiation of the fins on the plastic casing of the circuit breakers after the cut-off.

Selon une caractéristique particulière, la forme des séparateurs varie entre une forme en V réalisée de manière curviligne sur toute sa longueur et une forme en arc de cercle, en allant du déclencheur magnétique jusqu'à la corne de commutation.According to a particular characteristic, the shape of the separators varies between a V-shape curvilinearly formed along its entire length and an arcuate shape, going from the magnetic trigger to the switching horn.

Selon une autre caractéristique, ces séparateurs sont répartis dans trois groupes différents, respectivement un premier, un second et un troisième groupe, les séparateurs appartenant à un même groupe présentant sensiblement une même forme, en ce que dans le premier groupe situé du côté de la corne de commutation du disjoncteur, l'ouverture des séparateurs présente une forme semi-circulaire, que dans le troisième groupe situé du côté opposé, c'est-à-dire du côté des contacts fixe et mobile, l'ouverture des séparateurs présente une forme générale de V réalisé de manière curviligne sur toute la longueur de l'ouverture, tandis que dans le second groupe situé au milieu des deux autres, l'ouverture des séparateurs comporte une première partie en forme de portion de V prolongée par une fente, de telle manière que la section de la première partie de l'ouverture soit décroissante à partir de l'extrémité de l'ouverture située vers l'extérieur du séparateur vers son autre extrémité située vers l'intérieur dudit séparateur.According to another characteristic, these separators are distributed in three different groups, respectively a first, a second and a third group, the separators belonging to the same group having substantially the same shape, in that in the first group located on the side of the circuit breaker switching horn, the opening of the separators has a semicircular shape, that in the third group located on the opposite side, that is to say on the side of the fixed and movable contacts, the opening of the separators has a generally V-shaped curvilinear shape along the entire length of the opening, while in the second group located in the middle of the other two, the opening of the separators comprises a first portion in the form of a portion of V extended by a slot, such that the section of the first part of the opening is decreasing from the end of the opening towards the outside of the separator towards its other end located towards the interior of said separator.

La présente invention a encore pour objet un disjoncteur électrique basse tension comportant une chambre de coupure comportant les caractéristiques précédemment mentionnées et telles que définies dans la revendication 1.The present invention further relates to a low-voltage electrical circuit breaker comprising a breaking chamber having the features mentioned above and as defined in claim 1.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

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 :

  • La figure 1 comporte une vue en coupe de la chambre de coupure selon un plan perpendiculaire au plan des différents séparateurs, et illustrant en outre, selon une vue en plan, les trois formes différentes de séparateurs selon l'invention,
  • La figure 2 est une courbe illustrant la tension d'arc (en volts) en fonction du temps (ms) pendant la coupure selon l'art antérieur, et
  • La figure 3 est une courbe illustrant la tension d'arc (en volts) en fonction du temps (ms) pendant la coupure, selon l'invention.
But other advantages and features of the invention will become more apparent in the detailed description which follows and refers to the accompanying drawings given solely by way of example and in which:
  • The figure 1 comprises a sectional view of the cutting chamber in a plane perpendicular to the plane of the different separators, and further illustrating, in a plan view, the three different forms of separators according to the invention,
  • The figure 2 is a curve illustrating the arc voltage (in volts) as a function of time (ms) during the break according to the prior art, and
  • The figure 3 is a curve illustrating the arc voltage (in volts) versus time (ms) during the break, according to the invention.

EXPOSE DETAILLE D'UN MODE DE REALISATION DE L'INVENTIONDETAILED DESCRIPTION OF AN EMBODIMENT OF THE INVENTION

Les disjoncteurs permettent de réaliser l'interruption d'un courant électrique par séparation des contacts de manière à protéger les biens et les personnes des effets des courants de court-circuit.The circuit breakers allow the interruption of an electric current by separating the contacts so as to protect the goods and people from the effects of short-circuit currents.

De manière connue en soi, ces appareils comportent un boîtier isolant ayant sur sa face avant une manette de manoeuvre et sur ses deux faces latérales étroites, des bornes de connexion. A l'intérieur du boîtier sont logés, un contact mobile 1 et un contact fixe 2. Ce contact mobile 1 est commandé par un mécanisme de commande (non représenté) reliant la manette précitée au contact mobile pour la fermeture des contacts.In a manner known per se, these devices comprise an insulating housing having on its front face an operating handle and on its two narrow side faces, connection terminals. Inside the housing are housed, a movable contact 1 and a fixed contact 2. This movable contact 1 is controlled by a control mechanism (not shown) connecting the aforementioned lever to the movable contact for closing the contacts.

Dans ce boîtier 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 intérieure du boîtier renferme une chambre de coupure constituée par une première chambre dite de formation d'arc, communiquant avec l'entrée d'une deuxième chambre 3, dite d'extinction d'arc, cette dernière comprenant des séparateurs 4 constitués par un empilage de plaques (ou tôles) qui s'étendent parallèlement à la base du boîtier.In this housing are also housed a thermal release and an electromagnetic release (not shown), may cause, in case of overload or short circuit, an automatic opening of the contacts. The inner part of the housing encloses a breaking chamber constituted by a first so-called arc-forming chamber, communicating with the inlet of a second chamber 3, called an arc extinction chamber, the latter including separators 4 consisting of a stack of plates (or sheets) which extend parallel to the base of the housing.

Ce contact mobile 1 s'étend sensiblement perpendiculairement au plan des plaques prises séparément, de manière à tirer un arc entre les contacts lors de leur séparation, dont la direction initiale est sensiblement parallèle aux plaques. Cette chambre de coupure est délimitée latéralement par des cornes d'arc 5,6 reliées respectivement électriquement aux deux bornes précitées, ces deux cornes sont agencées de manière à capter l'arc tiré entre les contacts lors de leur séparation.This movable contact 1 extends substantially perpendicular to the plane of the plates taken separately, so as to draw an arc between the contacts during their separation, whose initial direction is substantially parallel to the plates. This breaking chamber is delimited laterally by arc horns 5,6 electrically connected respectively to the two aforementioned terminals, these two horns are arranged to capture the arc drawn between the contacts during their separation.

Selon l'invention, cette chambre d'extinction d'arc comporte trois groupes de séparateurs A,B,C, chaque groupe comportant des séparateurs identiques entre eux, mais la forme de ces séparateurs étant différente d'un groupe à l'autre.According to the invention, this arc extinction chamber comprises three groups of separators A, B, C, each group comprising separators identical to each other, but the shape of these separators being different from one group to another.

Cette modification de la forme des séparateurs d'un groupe à l'autre concerne plus particulièrement la forme du V.This modification of the form of the separators from one group to the other concerns more particularly the shape of the V.

Ainsi, du côté a de l'appareil où est située la corne de commutation 5, le « V »des séparateurs sera moins ouvert, en ce sens que l'ouverture 7 formée par le V présentera une surface moins importante, celle-ci pouvant aller jusqu'à présenter une forme semi-circulaire tel qu'illustré sur la figure 1. Du côté b de l'appareil ou est situé le déclencheur magnétique et les contacts fixe 1 et mobile 2, l'ouverture 8 en forme générale de « V » dans les séparateurs du troisième groupe C présentera une forme curviligne, sans discontinuité, tandis que le « V » dans les séparateurs du deuxième groupe B situé entre les deux premiers A,C, conservera une forme de « V » classique, comportant une portion de « V » 9 du côté de l'ouverture des séparateurs se prolongeant par une fente 10 présentant une largeur constante sur toute sa longueur.Thus, on the a side of the apparatus where the switching horn 5 is located, the "V" of the separators will be less open, in the sense that the opening 7 formed by the V will have a smaller surface area, which may be go as far as presenting a semicircular shape as illustrated on the figure 1 . On the side b of the apparatus where the magnetic trip unit and the fixed and movable contacts 1 and 2 are located, the opening 8 in the general shape of "V" in the separators of the third group C will present a curvilinear shape, without discontinuity, while the "V" in the separators of the second group B located between the first two A, C, will retain a conventional "V" shape, having a portion of "V" 9 on the opening side of the separators extending through a slot 10 having a constant width throughout its length.

Ainsi, la section de la première partie 9 de l'ouverture 11 est décroissante à partir de l'extrémité 11 a de l'ouverture 11 située vers l'extérieur du séparateur vers son autre extrémité 11 b située vers l'intérieur dudit séparateur.Thus, the section of the first portion 9 of the opening 11 is decreasing from the end 11a of the opening 11 located towards the outside of the separator towards its other end 11b located towards the inside of said separator.

Telle qu'illustré sur la figure 3, l'invention permet d'augmenter considérablement la tension d'arc pendant la coupure, ceci se traduisant par une amélioration considérable de la limitation du courant, et de là, par une réduction significative des contraintes thermiques engendrées lors de la coupure, d'où un risque considérablement diminué de fusion du boîtier.As illustrated on the figure 3 , the invention makes it possible to considerably increase the arc voltage during the breaking, this resulting in a considerable improvement in the limitation of the current, and hence in a significant reduction of the thermal stresses generated during the breaking, of where a significantly decreased risk of casing fusion.

Ainsi, la forme des ailettes dans la chambre est modifiée afin d'accélérer l'insertion de l'arc coté magnétique et de freiner l'insertion de l'arc coté rail de commutation, et ainsi amener l'arc à rentrer perpendiculairement dans la chambre de coupure. Pour y parvenir, la forme du V est très ouvert coté magnétique et très fermé coté rail de commutation. La masse de la chambre de coupure devant être préservée pour des problématiques post-coupure (fonte de plastique par rayonnement des chambres), il est nécessaire que la forme des ailettes évolue progressivement.Thus, the shape of the fins in the chamber is modified in order to accelerate the insertion of the magnetic side arc and to slow down the insertion of the arc on the switching rail, and thus cause the arc to return perpendicularly to the breaking room. To achieve this, the shape of the V is very open on the magnetic side and very closed side switching rail. The mass of the breaking chamber to be preserved for post-cutting problems (plastic melting by radiation from the chambers), it is necessary that the shape of the fins evolves gradually.

L'invention s'applique avantageusement à tous les disjoncteurs, quelque soit leur pas. Cette modification proposée par l'invention s'intègre parfaitement dans l'encombrement du produit, et de plus, ne nécessite pour sa mise en oeuvre, aucune pièce additionnelle, hormis la nécessité de prévoir trois empreintes de découpe des séparateurs.The invention applies advantageously to all circuit breakers, whatever their step. This modification proposed by the invention fits perfectly in the size of the product, and moreover, does not require for its implementation, no additional parts, except the need to provide three cutouts of separators.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple.Of course, the invention is not limited to the embodiment described and illustrated which has been given by way of example.

Au contraire, l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont réalisées conformément à l'objet de la revendication 1.On the contrary, the invention includes all the technical equivalents of the means described and their combinations if they are made in accordance with the subject matter of claim 1.

Claims (1)

  1. Electric circuit breaker, comprising an arc-forming chamber enclosing a fixed contact and a moving contact, which, at the time of their separation, form an arc between them, said forming chamber communicating with the input of a second so-called arc-quenching chamber comprising a stack of separators extending parallel to one another, this moving contact extending substantially at right angles to the plane of the separators, so as to pull an arc between the contacts upon their separation, the initial direction of which is substantially parallel to said separators, these separators having, on the side of the moving contact, an opening intended to facilitate the insertion of the arc, said circuit breaker comprising a magnetic release situated on the side of the fixed and moving contacts and a switching horn situated on the opposite side, characterized in that the form of the separators (4) varies progressively from one separator to the next, or by groups of identical separators from one group to another, or a mixture of both, in such a way that this form changes from the V having the largest opening surface area to the V having the smallest opening surface area, in the direction from the magnetic release to the switching horn (5), these separators (4) being distributed in three different groups A,B,C, i.e. a first group A, a second group B and a third group C, the separators (4) belonging to a same group having substantially the same form, in that, in the first group A situated on the side (a) of the switching horn (5) of the circuit breaker, the opening (7) of the separators (4) has a semicircular form and in that, in the third group C situated on the opposite side, namely the side (b) of the fixed contact (2) and moving contact (1), the opening (8) of the separators has a general form of a V formed in a curvilinear manner over the entire length of the opening, while in the second group B situated in the middle of the other two, the opening (11) of the separators has a first part (9) in the form of a V portion extended by a slot (10), in such a way that the cross-section of the first part (9) of the opening (11) decreases from the end (11 a) of the opening (11), situated towards the outside of the separator, in the direction of its other end (11b), situated towards the inside of the said separator.
EP15194907.0A 2014-12-19 2015-11-17 Arc extinguishing chamber for electrical circuit breaker and circuit breaker comprising such a chamber Active EP3035363B1 (en)

Applications Claiming Priority (1)

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FR1462947A FR3030867B1 (en) 2014-12-19 2014-12-19 ARC BREAK CHAMBER FOR AN ELECTRIC CIRCUIT BREAKER, AND CIRCUIT BREAKER COMPRISING SUCH A ROOM.

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EP3035363A1 EP3035363A1 (en) 2016-06-22
EP3035363B1 true EP3035363B1 (en) 2017-02-01

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US (1) US9947495B2 (en)
EP (1) EP3035363B1 (en)
CN (1) CN105719915B (en)
ES (1) ES2622990T3 (en)
FR (1) FR3030867B1 (en)
RU (1) RU2713412C2 (en)

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US10650993B1 (en) * 2019-03-19 2020-05-12 Siemens Industry, Inc. Circuit breaker with enhanced arc extinguishing chamber

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US20160181034A1 (en) 2016-06-23
EP3035363A1 (en) 2016-06-22
RU2015153819A3 (en) 2019-03-15
CN105719915B (en) 2020-04-10
US9947495B2 (en) 2018-04-17
RU2713412C2 (en) 2020-02-05
CN105719915A (en) 2016-06-29
ES2622990T3 (en) 2017-07-10
FR3030867B1 (en) 2017-11-24
FR3030867A1 (en) 2016-06-24
RU2015153819A (en) 2017-06-21

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