EP3029706A1 - Cut-off device and modular differential circuit-breaker comprising at least one such cut-off device - Google Patents

Cut-off device and modular differential circuit-breaker comprising at least one such cut-off device Download PDF

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Publication number
EP3029706A1
EP3029706A1 EP15306905.9A EP15306905A EP3029706A1 EP 3029706 A1 EP3029706 A1 EP 3029706A1 EP 15306905 A EP15306905 A EP 15306905A EP 3029706 A1 EP3029706 A1 EP 3029706A1
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EP
European Patent Office
Prior art keywords
arc
yoke
arc horn
horn
cut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15306905.9A
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German (de)
French (fr)
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EP3029706B1 (en
Inventor
Hassan Essadik
Julien WICKER
Antoine SCHWAAB
Thierry Lienhardt
Vincent KENNEL
Patrice JOYEX
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Hager Electro SAS
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Hager Electro SAS
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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
    • H01H9/46—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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346—Details concerning the arc formation chamber
    • 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
    • H01H2009/347—Stationary parts for restricting or subdividing the arc, e.g. barrier plate using lids for closing the arc chamber after assembly

Definitions

  • the application relates to a cut-off device and a modular differential circuit breaker comprising at least one such cut-off device.
  • Such cut-off devices generally have a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises a cutting chamber comprising a yoke, an arc horn and a subset called a deion.
  • cut-off performance of such switching devices and modular differential circuit breakers comprising at least one such cut-off device are the result of a compromise between different components of the switchgear.
  • the cutoff is finalized in the deion, deion comprising platelets which split the arc.
  • the said pads are kept parallel and without contact with each other by a known non-conductive mechanical electricity device such as cardboard sheets or plastic plates.
  • the performance of such cut-off devices is dependent on the number of platelets of the deion.
  • the number of platelets is generally between 7 and 15 platelets, more particularly 7 or 11 or 12 or 13 platelets.
  • Another important parameter in the cutoff performance of the cutoff device is whether or not there is an arc jump between the arc horn and the bolt.
  • the deion subassembly can extend to the breech which allows to increase the number of deion plates, on the other hand the fact that a "jump of arc" is present on the course of the arc, goes against the increase in performance generated by the fact that the number of deion wafers is increased.
  • the jump of the arc is in fact a discontinuity of the conductor which allows the arc to go to the subset deion.
  • the object of the application is to propose a cut-off device and a modular differential circuit breaker comprising at least one such cut-off device having a sufficiently high breaking performance while keeping a sufficiently compact breaking chamber.
  • the application proposes a cut-off device having a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises a cutting chamber comprising a yoke, an arc horn and a subset called a deion, the arc horn being bent.
  • the cylinder head has a longitudinal opening.
  • the arc horn terminates in a flat portion that is housed in the longitudinal opening so as to be parallel and aligned with it.
  • the bow horn is housed in the same plane as that of the breech.
  • the longitudinal opening allows the bow horn to be housed in the same plane as that of the breech.
  • the arc horn is integrated directly into the cylinder head in one piece without arc jump.
  • the longitudinal opening in the cylinder head is open, which allows to house the arc horn integrally in its thickness in the opening of the cylinder head, because generally this type of component has a constant thickness.
  • the opening may also consist of a cavity housing the non-emergent arc horn made by stamping in the cylinder head for example.
  • the yoke may comprise a flat portion, preferably extended at one of its ends by a first curved portion having a contact zone constituting a fixed contact of the cut-off device.
  • the first bent portion is itself extended by a second portion constituting an arc horn.
  • the arc horn may consist of two portions, a prolonged curved portion of a terminal planar portion.
  • the yoke and the bow horn are formed in one piece.
  • the yoke and the arc horn are formed by a piece of variable thickness.
  • the yoke and the arc horn are formed by a piece of constant thickness.
  • the yoke and the bow horn are formed by a bent piece.
  • the yoke and the arc horn are formed of an electrically conductive material.
  • the yoke and the arc horn are formed by a metal piece.
  • FIGS. 1 to 3 are schematic representations of a breaking device 450 known from the prior art with arc-jump comprising a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises a breaking chamber 470 having a yoke 462, an arc horn 461 and a subassembly called a deion 490.
  • the arc horn 461 is a component welded to the breech 462.
  • the subset deion 490 extends to the breech 462 which increases the number of platelets deion 491.
  • the fact that a "jump of arc" is present on the course of the electric arc, goes against the increase in performance generated by the fact that the number of platelets 491 deion is increased.
  • the jump of arc is further schematized in the figures 1 and 3 .
  • the jump of arc is made from a first position 451 of the arc to a second position 452 of the arc above a discontinuity 463 of the driver which allows the arc to go to the subassembly 490.
  • FIGS. 4 and 5 are schematic representations of a cut-off device 450 'known from the prior art without arcing, comprising a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises a breaking chamber 470 'comprising a yoke 462', an arc horn 461 'and a subset called a deion 490'.
  • the figure 6 is a schematic representation of a cylinder head 410 of a cutoff device 400 proposed by the application.
  • the figure 7 is a schematic representation of the cut-off device 400 comprising the cylinder head 402.
  • the cut-off device 400 has a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises a breaking chamber 420 comprising a yoke 402, an arc horn 401 and a subset called the deion 440.
  • the yoke 402 has a longitudinal opening 411.
  • the arc horn 401 is housed in the same plane as that of the cylinder head 402.
  • the longitudinal opening 411 allows the arc horn 401 to be housed in the same plane as that of breech 402.
  • the arc horn 401 is integrated directly into the cylinder head 402 in one piece without arc jump.
  • the arc horn 401 is arranged on the same plane as the cylinder head 402.
  • the yoke 402 may comprise a flat portion 404, preferably extended at one of its ends by a first curved portion 405 having a contact zone 406 constituting a fixed contact of the cut-off device.
  • the first curved portion 405 and the contact zone 406 are themselves extended by a second curved portion 407 constituting the arc horn 401.
  • the arcuate horn 401 may consist of two portions, that is to say the second curved portion 407 and a terminal planar portion 408.
  • the second curved portion 407 is extended by the terminal flat portion.
  • the end planar portion 408 is housed in the longitudinal opening 401.
  • the arcuate horn 401 terminates in a planar portion and is preferably bent so that the planar portion is housed in the opening 411 of the cylinder head 402 so as to be parallel and aligned with it .
  • the opening 401 is open.
  • the opening 401 can be made by stamping, in this case it is non-emergent and the portion covering the opening 401 extends beyond the thickness of the cylinder head 402 in the direction opposite to that of the chamber. cutting a distance d. Preferably this distance is equal to the thickness of the cylinder head 402. Optionally this distance is less than the thickness of the cylinder head 402.

Landscapes

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

Abstract

Dispositif de coupure (400) présentant un mécanisme d'ouverture et de fermeture d'au moins un contact électrique entre une ligne électrique amont et une ligne électrique aval. Le mécanisme d'ouverture et de fermeture comprend une chambre de coupure (420) comportant une culasse (402), une corne d'arc (401) et un sous ensemble appelé déion (440). La corne d'arc (401) comprend une pièce recourbée (407). La culasse (402) présente une ouverture longitudinale. La corne d'arc (401) se termine en outre par une portion plane se logeant dans l'ouverture longitudinale de sorte à être parallèle et alignée avec celle-ci.Cutoff device (400) having a mechanism for opening and closing at least one electrical contact between an upstream power line and a downstream power line. The opening and closing mechanism comprises an interrupting chamber (420) having a yoke (402), an arc horn (401) and a subassembly called a deion (440). The bow horn (401) includes a curved piece (407). The yoke (402) has a longitudinal opening. The arc horn (401) is further terminated by a planar portion being housed in the longitudinal opening so as to be parallel and aligned therewith.

Description

La demande a pour objet un dispositif de coupure et un disjoncteur différentiel modulaire comprenant au moins un tel dispositif de coupure.The application relates to a cut-off device and a modular differential circuit breaker comprising at least one such cut-off device.

De tels dispositifs de coupure présentent de façon générale un mécanisme d'ouverture et de fermeture d'au moins un contact électrique entre une ligne électrique amont et une ligne électrique aval. En général, le mécanisme d'ouverture et de fermeture comprend une chambre de coupure comportant une culasse, une corne d'arc et un sous ensemble appelé déion.Such cut-off devices generally have a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line. In general, the opening and closing mechanism comprises a cutting chamber comprising a yoke, an arc horn and a subset called a deion.

Les performances en coupure de tels dispositifs de coupure et de disjoncteur différentiel modulaire comprenant au moins un tel dispositif de coupure sont le résultat d'un compromis entre différents éléments constitutifs de l'appareil de coupure.The cut-off performance of such switching devices and modular differential circuit breakers comprising at least one such cut-off device are the result of a compromise between different components of the switchgear.

Généralement la coupure se finalise dans le déion, déion comportant des plaquettes qui fractionnent l'arc. Les dites plaquettes sont maintenues parallèles et sans contact entre elles par un dispositif mécanique non conducteur de l'électricité connu tel que des feuilles de carton ou des plaques de plastique. Les performances de tels dispositifs de coupure sont dépendantes du nombre de plaquettes du déion. Le nombre de plaquettes est généralement un nombre entre 7 et 15 plaquettes, plus particulièrement 7 ou 11 ou 12 ou 13 plaquettes.Generally the cutoff is finalized in the deion, deion comprising platelets which split the arc. The said pads are kept parallel and without contact with each other by a known non-conductive mechanical electricity device such as cardboard sheets or plastic plates. The performance of such cut-off devices is dependent on the number of platelets of the deion. The number of platelets is generally between 7 and 15 platelets, more particularly 7 or 11 or 12 or 13 platelets.

Il va de soit que plus le sous ensemble déion comporte de plaquettes, plus les performances en coupure sont élevées mais plus le volume du sous ensemble déion est important.It goes without saying that the more deion subset comprises platelets, the higher the cutoff performance is high but the volume of the subset deion is important.

L'arc électrique se crée au moment de l'ouverture du contact sous charge et est guidé vers le sous ensemble déion par deux éléments :

  • La corne d'arc et une tôle d'arc.
  • La tendance actuelle est de développer des dispositifs de coupure toujours plus performant à volume équivalent voir réduit. Cette tendance implique l'augmentation des performances du dispositif de coupure soit à volume constant soit en réduisant le volume du produit ou tout du moins à garder des performances acceptables tout en réduisant le volume du produit.
The electric arc is created at the moment of the opening of the contact under load and is guided towards the deion subset by two elements:
  • The bow horn and a bow plate.
  • The current trend is to develop cutting devices ever more efficient volume equivalent or reduced. This trend involves increasing the performance of the breaking device either at constant volume or by reducing the volume of the product or at least maintaining acceptable performance while reducing the volume of the product.

Un autre paramètre important dans les performances en coupure du dispositif de coupure est le fait qu'il y ait ou non un saut d'arc entre la corne d'arc et la culasse.Another important parameter in the cutoff performance of the cutoff device is whether or not there is an arc jump between the arc horn and the bolt.

Actuellement il existe deux technologies de culasse pour les dispositifs de coupure connus de l'art antérieur:

  • avec saut d'arc et
  • sans saut d'arc.
Currently there are two head technologies for cutting devices known from the prior art:
  • with bow jump and
  • without an arc jump.

Avec saut d'arc, soit la corne est un composant soudé sur la culasse, soit la corne forme une partie intégrante de la culasse elle-même. Cela entraine une montée d'arc plus lente et donc des contraintes thermiques élevées.With bow jump, either the horn is a component welded on the breech, or the horn forms an integral part of the breech itself. This results in a slower arc climb and therefore high thermal stress.

Dans cette configuration, le sous ensemble déion peut s'étendre jusqu'à la culasse ce qui permet d'augmenter le nombre de plaquettes déion, par contre le fait qu'un « saut d'arc » soit présent sur le parcours de l'arc électrique, va à l'encontre de l'augmentation de performance générée par le fait que le nombre de plaquette déion soit augmenté .In this configuration, the deion subassembly can extend to the breech which allows to increase the number of deion plates, on the other hand the fact that a "jump of arc" is present on the course of the arc, goes against the increase in performance generated by the fact that the number of deion wafers is increased.

Le saut d'arc est en fait une discontinuité du conducteur qui permet à l'arc d'aller jusqu'au sous ensemble déion.The jump of the arc is in fact a discontinuity of the conductor which allows the arc to go to the subset deion.

Sans saut d'arc, c'est toujours le prolongement de la corne qui s'étend sous la culasse. Cela entraine une perte de volume dans la chambre de coupure et donc une tension d'arc plus faible et une dissipation thermique moins élevée.Without arching, it is always the extension of the horn that extends under the breech. This causes a loss of volume in the interrupting chamber and therefore a lower arc voltage and a lower heat dissipation.

L'objet de la demande est de proposer un dispositif de coupure et un disjoncteur différentiel modulaire comprenant au moins un tel dispositif de coupure présentant une performance en coupure suffisamment importante tout en gardant une chambre de coupure suffisamment compacte.The object of the application is to propose a cut-off device and a modular differential circuit breaker comprising at least one such cut-off device having a sufficiently high breaking performance while keeping a sufficiently compact breaking chamber.

A cet effet, la demande propose un dispositif de coupure présentant un mécanisme d'ouverture et de fermeture d'au moins un contact électrique entre une ligne électrique amont et une ligne électrique aval. Le mécanisme d'ouverture et de fermeture comprend une chambre de coupure comportant une culasse, une corne d'arc et un sous ensemble appelé déion, la corne d'arc étant recourbée. La culasse présente une ouverture longitudinale. La corne d'arc se termine par une portion plane se logeant dans l'ouverture longitudinale de sorte à être parallèle et alignée avec celle-ci.For this purpose, the application proposes a cut-off device having a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line. The opening and closing mechanism comprises a cutting chamber comprising a yoke, an arc horn and a subset called a deion, the arc horn being bent. The cylinder head has a longitudinal opening. The arc horn terminates in a flat portion that is housed in the longitudinal opening so as to be parallel and aligned with it.

De préférence, la corne d'arc se loge dans le meme plan que celui de la culasse. L'ouverture longitudinale permet à la corne d'arc de se loger dans le même plan que celui de la culasse.Preferably, the bow horn is housed in the same plane as that of the breech. The longitudinal opening allows the bow horn to be housed in the same plane as that of the breech.

De préférence, la corne d'arc est intégrée directement dans la culasse en une seule pièce sans saut d'arc.Preferably, the arc horn is integrated directly into the cylinder head in one piece without arc jump.

De préférence, l'ouverture longitudinale dans la culasse est débouchante, ce qui permet de loger la corne d'arc intégralement dans son épaisseur dans l'ouverture de la culasse, car généralement ce type de composant dispose d'une épaisseur constante.Preferably, the longitudinal opening in the cylinder head is open, which allows to house the arc horn integrally in its thickness in the opening of the cylinder head, because generally this type of component has a constant thickness.

De préférence, l'ouverture peut également être constituée d'une cavité de logement de la corne d'arc non débouchante réalisée par un emboutissage dans la culasse par exemple.Preferably, the opening may also consist of a cavity housing the non-emergent arc horn made by stamping in the cylinder head for example.

Dans ce cas:

  • soit la corne d'arc n'est pas totalement intégrée dans l'épaisseur de la culasse (cas de composant d'épaisseur constante) ;
  • soit elle est totalement intégrée dans l'épaisseur de la culasse si par exemple le composant n'est pas d'épaisseur constante (culasse plus épaisse que la corne d'arc) ou que l'excroissance générée par l'emboutissage dans la culasse ne rentre en collision avec aucun composant du sous ensemble magnétique.
In that case:
  • either the arc horn is not totally integrated in the thickness of the cylinder head (case of component of constant thickness);
  • either it is totally integrated in the thickness of the cylinder head if for example the component is not of constant thickness (breech thicker than the arc horn) or that the protrusion generated by stamping in the cylinder head collides with any component of the magnetic subassembly.

Ces caractéristiques ont pour effet d'entrainer un gain de volume dans la chambre de coupure afin de maximiser les performances du deion (gain d'une plaquette sur le deion). Elles permettent également de mieux dissiper l'énergie de l'arc électrique.These characteristics have the effect of causing a volume gain in the interrupting chamber to maximize the performance of the deion (gain of a wafer on the deion). They also better dissipate the energy of the electric arc.

Selon une possibilité, la culasse peut comporter une portion plane, de préférence prolongée à une de ses extrémités par une première portion recourbée comportant une zone de contact constituant un contact fixe du dispositif de coupure.According to one possibility, the yoke may comprise a flat portion, preferably extended at one of its ends by a first curved portion having a contact zone constituting a fixed contact of the cut-off device.

Selon une possibilité, la première portion recourbée est elle-meme prolongée par une deuxieme portion constituant une corne d'arc.According to one possibility, the first bent portion is itself extended by a second portion constituting an arc horn.

De préférence, la corne d'arc peut être constituée de deux portions, une portion courbe prolongée d'une portion plane terminale.Preferably, the arc horn may consist of two portions, a prolonged curved portion of a terminal planar portion.

Ces caractéristiques présentent l'avantage qu'un saut d'arc peut être évité et le volume de la chambre de coupure peut être conservé (donc du nombre de plaquettes déion dans le sous ensemble déion).These features have the advantage that an arc jump can be avoided and the volume of the breaking chamber can be maintained (thus the number of deion platelets in the deion subset).

De préférence, la culasse et la corne d'arc sont formées par une seule pièce.Preferably, the yoke and the bow horn are formed in one piece.

De préférence, la culasse et la corne d'arc sont formées par une pièce d'épaisseur variable.Preferably, the yoke and the arc horn are formed by a piece of variable thickness.

De préférence, la culasse et la corne d'arc sont formées par une pièce d'épaisseur constante.Preferably, the yoke and the arc horn are formed by a piece of constant thickness.

De préférence, la culasse et la corne d'arc sont formées par une pièce cintrée.Preferably, the yoke and the bow horn are formed by a bent piece.

De préférence, la culasse et la corne d'arc sont formées en un matériau électriquement conducteur.Preferably, the yoke and the arc horn are formed of an electrically conductive material.

De préférence, la culasse et la corne d'arc sont formées par une pièce métallique.Preferably, the yoke and the arc horn are formed by a metal piece.

Les caractéristiques et avantages d'un dispositif de coupure et d'un disjoncteur différentiel modulaire comprenant au moins un tel dispositif de coupure proposé par la demande ressortirons d'ailleurs de la description qui va suivre, à titre d'exemple, en référence aux dessins schématiques annexés sur lesquels :

  • la figure 1 est une représentation schématique d'un dispositif de coupure connu de l'art antérieur avec saut d'arc;
  • la figure 2 est une représentation schématique d'un dispositif de coupure connu de l'art antérieur;
  • la figure 3 est une représentation schématique d'un dispositif de coupure connu de l'art antérieur avec saut d'arc;
  • la figure 4 est une représentation schématique d'un dispositif de coupure connu de l'art antérieur sans saut d'arc;
  • la figure 5 est une représentation schématique d'un dispositif de coupure connu de l'art antérieur;
  • la figure 6 est une représentation schématique d'une culasse d'un dispositif de coupure proposé par la demande ;
  • la figure 7 est une représentation schématique d'un dispositif de coupure proposé par la demande comprenant une culasse représentée dans la figure 6.
The characteristics and advantages of a breaking device and a modular differential circuit breaker comprising at least one such cut-off device proposed by the application will become apparent from the following description, by way of example, with reference to the drawings. annexed schematic diagrams in which:
  • the figure 1 is a schematic representation of a breaking device known from the prior art with arc jump;
  • the figure 2 is a schematic representation of a cutting device known from the prior art;
  • the figure 3 is a schematic representation of a breaking device known from the prior art with arc jump;
  • the figure 4 is a schematic representation of a cutoff device known from the prior art without arc jump;
  • the figure 5 is a schematic representation of a cutting device known from the prior art;
  • the figure 6 is a schematic representation of a cylinder head of a proposed cut-off device;
  • the figure 7 is a schematic representation of a demand cutoff device comprising a cylinder head shown in FIG. figure 6 .

Les figures 1 à 3 sont des représentations schématiques d'un dispositif de coupure 450 connu de l'art antérieur avec saut d'arc comprenant un mécanisme d'ouverture et de fermeture d'au moins un contact électrique entre une ligne électrique amont et une ligne électrique aval. Le mécanisme d'ouverture et de fermeture comprend une chambre de coupure 470 comportant une culasse 462, une corne d'arc 461 et un sous ensemble appelé déion 490. La corne d'arc 461 est un composant soudé sur la culasse 462. Le sous ensemble déion 490 s'étend jusqu'à la culasse 462 ce qui permet d'augmenter le nombre de plaquettes déion 491. Par contre le fait qu'un « saut d'arc » soit présent sur le parcours de l'arc électrique, va à l'encontre de l'augmentation de performance générée par le fait que le nombre de plaquettes 491 déion soit augmenté.The Figures 1 to 3 are schematic representations of a breaking device 450 known from the prior art with arc-jump comprising a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line. The opening and closing mechanism comprises a breaking chamber 470 having a yoke 462, an arc horn 461 and a subassembly called a deion 490. The arc horn 461 is a component welded to the breech 462. The subset deion 490 extends to the breech 462 which increases the number of platelets deion 491. On the other hand the fact that a "jump of arc" is present on the course of the electric arc, goes against the increase in performance generated by the fact that the number of platelets 491 deion is increased.

Le saut d'arc est en outre schématisé dans les figures 1 et 3. Le saut d'arc s'effectue depuis une première position 451 de l'arc vers une deuxième position 452 de l'arc au-dessus d'une discontinuité 463 du conducteur qui permet à l'arc d'aller jusqu'au sous ensemble déion 490.The jump of arc is further schematized in the figures 1 and 3 . The jump of arc is made from a first position 451 of the arc to a second position 452 of the arc above a discontinuity 463 of the driver which allows the arc to go to the subassembly 490.

Les figures 4 et 5 sont des représentations schématiques d'un dispositif de coupure 450' connu de l'art antérieur sans saut d'arc comprenant un mécanisme d'ouverture et de fermeture d'au moins un contact électrique entre une ligne électrique amont et une ligne électrique aval. Le mécanisme d'ouverture et de fermeture comprend une chambre de coupure 470' comportant une culasse 462', une corne d'arc 461' et un sous ensemble appelé déion 490'.The figures 4 and 5 are schematic representations of a cut-off device 450 'known from the prior art without arcing, comprising a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line. The opening and closing mechanism comprises a breaking chamber 470 'comprising a yoke 462', an arc horn 461 'and a subset called a deion 490'.

Comme schématisé dans les figures 4 et 5, le prolongement de la corne d'arc 461' s'étend sous la culasse 462'. Cela entraine une perte de volume dans la chambre de coupure et donc une tension d'arc plus faible et une dissipation thermique moins élevée.As schematized in figures 4 and 5 the extension of the arc horn 461 'extends under the yoke 462'. This causes a loss of volume in the interrupting chamber and therefore a lower arc voltage and a lower heat dissipation.

La figure 6 est une représentation schématique d'une culasse 410 d'un dispositif de coupure 400 proposé par la demande.The figure 6 is a schematic representation of a cylinder head 410 of a cutoff device 400 proposed by the application.

La figure 7 est une représentation schématique du dispositif de coupure 400 comprenant la culasse 402.The figure 7 is a schematic representation of the cut-off device 400 comprising the cylinder head 402.

Le dispositif de coupure 400 présente un mécanisme d'ouverture et de fermeture d'au moins un contact électrique entre une ligne électrique amont et une ligne électrique aval. Le mécanisme d'ouverture et de fermeture comprend une chambre de coupure 420 comportant une culasse 402, une corne d'arc 401 et un sous ensemble appelé deion 440.The cut-off device 400 has a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line. The opening and closing mechanism comprises a breaking chamber 420 comprising a yoke 402, an arc horn 401 and a subset called the deion 440.

De préférence, la culasse 402 présente une ouverture longitudinale 411. De préférence, la corne d'arc 401 se loge dans le meme plan que celui de la culasse 402. L'ouverture longitudinale 411 permet à la corne d'arc 401 de se loger dans le meme plan que celui de la culasse 402.Preferably, the yoke 402 has a longitudinal opening 411. Preferably, the arc horn 401 is housed in the same plane as that of the cylinder head 402. The longitudinal opening 411 allows the arc horn 401 to be housed in the same plane as that of breech 402.

De préférence, la corne d'arc 401 est intégrée directement dans la culasse 402 en une seule pièce sans saut d'arc.Preferably, the arc horn 401 is integrated directly into the cylinder head 402 in one piece without arc jump.

De préférence, la corne d'arc 401 est agencée sur le même plan que la culasse 402.Preferably, the arc horn 401 is arranged on the same plane as the cylinder head 402.

Ces caractéristiques ont pour effet d'entrainer un gain de volume dans la chambre de coupure 403 afin de maximiser les performances du deion 440 (gain d'une plaquette sur le deion). Elles permettent également de mieux dissiper l'énergie de l'arc électrique.These characteristics have the effect of causing a gain in volume in the breaking chamber 403 to maximize the performance of the 440 deion (gain of a wafer on the deion). They also better dissipate the energy of the electric arc.

Selon une possibilité, la culasse 402 peut comporter une portion plane 404, de préférence prolongée à une de ses extrémités par une première portion recourbé 405 comportant une zone de contact 406 constituant un contact fixe du dispositif de coupure.According to one possibility, the yoke 402 may comprise a flat portion 404, preferably extended at one of its ends by a first curved portion 405 having a contact zone 406 constituting a fixed contact of the cut-off device.

Selon une possibilité, la première portion recourbée 405 et la zone de contact 406 sont elle-même prolongée par une deuxième portion recourbée 407 constituant la corne d'arc 401.According to one possibility, the first curved portion 405 and the contact zone 406 are themselves extended by a second curved portion 407 constituting the arc horn 401.

De préférence, la corne d'arc 401 peut ête constituée de deux portions, c'est-à-dire de la deuxième portion recourbée 407 et d'une portion plane terminale 408. De préférence, la deuxième portion recourbée 407 est prolongée par la portion plane terminale.Preferably, the arcuate horn 401 may consist of two portions, that is to say the second curved portion 407 and a terminal planar portion 408. Preferably, the second curved portion 407 is extended by the terminal flat portion.

De préférence, la portion plane terminale 408 est logée dans l'ouverture longitudinale 401.Preferably, the end planar portion 408 is housed in the longitudinal opening 401.

Selon une possibilité, la corne d'arc 401 se termine par une portion plane et est de préférence recourbée de telle sorte que la portion plane se loge dans l'ouverture 411 de la culasse 402 de manière à etre parallèle et alignée avec celle-ci. De préférence l'ouverture 401 est débouchante.According to one possibility, the arcuate horn 401 terminates in a planar portion and is preferably bent so that the planar portion is housed in the opening 411 of the cylinder head 402 so as to be parallel and aligned with it . Preferably the opening 401 is open.

Optionnellement l'ouverture 401 peut être réalisée par emboutissage, dans ce cas elle est non-débouchante et la partie couvrant l'ouverture 401 s'étend au delà de l'épaisseur de la culasse 402 dans la direction opposée à celle de la chambre de coupure d'une distance d. De préférence cette distance est égale à l'épaisseur de la culasse 402. Optionnellement cette distance est inférieure à l'épaisseur de la culasse 402.Optionally the opening 401 can be made by stamping, in this case it is non-emergent and the portion covering the opening 401 extends beyond the thickness of the cylinder head 402 in the direction opposite to that of the chamber. cutting a distance d. Preferably this distance is equal to the thickness of the cylinder head 402. Optionally this distance is less than the thickness of the cylinder head 402.

Ces caractéristiques présentent l'avantage qu'un saut d'arc peut être évité et le volume de la chambre de coupure peut être conservé (donc du nombre de plaquettes déion dans le sous ensemble déion).These features have the advantage that an arc jump can be avoided and the volume of the breaking chamber can be maintained (thus the number of deion platelets in the deion subset).

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims (11)

Dispositif de coupure présentant un mécanisme d'ouverture et de fermeture d'au moins un contact électrique entre une ligne électrique amont et une ligne électrique aval, le mécanisme d'ouverture et de fermeture comprenant une chambre de coupure (420) comportant une culasse (402), une corne d'arc (401) et un sous ensemble appelé déion (440), la corne d'arc (401) comprenant une pièce recourbée (407), caractérisé en ce que la culasse (402) présente une ouverture longitudinale (411) et en ce que la corne d'arc (401) se termine en outre par une portion plane (408) se logeant dans l'ouverture longitudinale (411) de sorte à être parallèle et alignée avec celle-ci.Cut-off device having a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line, the opening and closing mechanism comprising an interrupting chamber (420) comprising a cylinder head ( 402), an arc horn (401) and a subassembly called a deion (440), the arc horn (401) comprising a bent piece (407), characterized in that the yoke (402) has a longitudinal opening (411) and in that the arc horn (401) is further terminated by a planar portion (408) accommodating in the longitudinal opening (411) so as to be parallel and aligned therewith. Dispositif de coupure selon la revendication 1, caractérisé en ce que la corne d'arc (401) est intégrée directement dans la culasse (402) en une seule pièce sans saut d'arc.Cutoff device according to claim 1, characterized in that the arc horn (401) is integrated directly into the cylinder head (402) in one piece without arc jump. Dispositif de coupure selon l'une quelconque des revendications 1 à 2, caractérisé en ce que l'ouverture longitudinale (411) est débouchante, la corne d'arc (401) étant intégralement logée dans son épaisseur dans l'ouverture longitudinale (411).Cutoff device according to any one of claims 1 to 2, characterized in that the longitudinal opening (411) is open, the arc horn (401) being integrally housed in its thickness in the longitudinal opening (411) . Dispositif de coupure selon l'une quelconque des revendications 1 à 2, caractérisé en ce que l'ouverture longitudinale (411) est constituée d'une cavité de logement de la corne d'arc (401) non débouchante, la cavité étant de préférence réalisée par un emboutissage dans la culasse (402).Cut-off device according to any one of Claims 1 to 2, characterized in that the longitudinal opening (411) consists of a non-emergent cavity of the arc horn (401), the cavity preferably being performed by stamping in the cylinder head (402). Dispositif de coupure selon la revendication 4, caractérisé en ce que la corne d'arc (401) est partiellement intégrée dans l'épaisseur de la culasse (402).Cutoff device according to claim 4, characterized in that the arc horn (401) is partially integrated in the thickness of the yoke (402). Dispositif de coupure selon la revendication 4, caractérisé en ce que la corne d'arc (401) est totalement intégrée dans l'épaisseur de la culasse (402), une excroissance générée par l'emboutissage dans la culasse (402) étant distante de chaque composant du sous ensemble magnétique.Cut-off device according to claim 4, characterized in that the arc horn (401) is totally integrated in the thickness of the yoke (402), an excrescence generated by the stamping in the cylinder head (402) being distant from each component of the magnetic subassembly. Dispositif de coupure selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la culasse (402) et la corne d'arc (401) sont formés par une pièce d'épaisseur variable.Cutting device according to any one of claims 1 to 6, characterized in that the yoke (402) and the arc horn (401) are formed by a piece of variable thickness. Dispositif de coupure selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la culasse (402) et la corne d'arc (401) sont formés par une pièce d'épaisseur constante.Cutting device according to any one of claims 1 to 5, characterized in that the yoke (402) and the arc horn (401) are formed by a piece of constant thickness. Dispositif de coupure selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la culasse (402) et la corne d'arc (401) sont formés par une pièce cintrée.Cutoff device according to any one of claims 1 to 8, characterized in that the yoke (402) and the arc horn (401) are formed by a bent piece. Dispositif de coupure selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la culasse (402) et la corne d'arc (401) sont formés par une seule pièce.Cut-off device according to one of Claims 1 to 9, characterized in that the yoke (402) and the bow horn (401) are formed in one piece. Disjoncteur différentiel modulaire comprenant au moins un dispositif de coupure (400) selon l'une quelconque des revendications précédentes.Modular differential circuit breaker comprising at least one breaking device (400) according to any one of the preceding claims.
EP15306905.9A 2014-12-01 2015-12-01 Cut-off device and modular differential circuit-breaker comprising at least one such cut-off device Active EP3029706B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1461738A FR3029350B1 (en) 2014-12-01 2014-12-01 DEVICE FOR DIFFERENTIAL PROTECTION

Publications (2)

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EP3029706A1 true EP3029706A1 (en) 2016-06-08
EP3029706B1 EP3029706B1 (en) 2020-11-04

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ID=52589548

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Application Number Title Priority Date Filing Date
EP15306905.9A Active EP3029706B1 (en) 2014-12-01 2015-12-01 Cut-off device and modular differential circuit-breaker comprising at least one such cut-off device
EP15306904.2A Active EP3029705B1 (en) 2014-12-01 2015-12-01 Method for manufacturing an electric device providing at least two electrical functions
EP15820215.0A Active EP3227901B1 (en) 2014-12-01 2015-12-01 Differential protection device
EP15306903.4A Active EP3029704B1 (en) 2014-12-01 2015-12-01 Differential circuit breaker
EP15306902.6A Active EP3029703B1 (en) 2014-12-01 2015-12-01 Circuit-breaker, preferably differential circuit-breaker

Family Applications After (4)

Application Number Title Priority Date Filing Date
EP15306904.2A Active EP3029705B1 (en) 2014-12-01 2015-12-01 Method for manufacturing an electric device providing at least two electrical functions
EP15820215.0A Active EP3227901B1 (en) 2014-12-01 2015-12-01 Differential protection device
EP15306903.4A Active EP3029704B1 (en) 2014-12-01 2015-12-01 Differential circuit breaker
EP15306902.6A Active EP3029703B1 (en) 2014-12-01 2015-12-01 Circuit-breaker, preferably differential circuit-breaker

Country Status (4)

Country Link
EP (5) EP3029706B1 (en)
AU (1) AU2015356923B2 (en)
FR (1) FR3029350B1 (en)
WO (1) WO2016087768A1 (en)

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FR2378344A1 (en) * 1977-01-25 1978-08-18 Telemecanique Electrique BLOWING PART
EP1282146A1 (en) * 2001-07-31 2003-02-05 Legrand Arc extinguishing device
DE10230094A1 (en) * 2002-07-04 2004-01-29 Siemens Ag Arc extinction device for load protection switch has one of arc conduction rails leading to arc extinction chamber coupled to auxiliary conductor path for lead-off of arc driving current

Also Published As

Publication number Publication date
FR3029350A1 (en) 2016-06-03
AU2015356923B2 (en) 2020-03-12
EP3227901A1 (en) 2017-10-11
EP3029704B1 (en) 2021-03-31
EP3029703B1 (en) 2018-01-31
EP3029703A1 (en) 2016-06-08
EP3029704A1 (en) 2016-06-08
WO2016087768A1 (en) 2016-06-09
EP3029705A1 (en) 2016-06-08
EP3227901B1 (en) 2019-07-10
EP3029705B1 (en) 2020-11-04
AU2015356923A1 (en) 2017-07-20
FR3029350B1 (en) 2016-12-23
EP3029706B1 (en) 2020-11-04

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