EP2932520A1 - Improved circuit breaker apparatus - Google Patents

Improved circuit breaker apparatus

Info

Publication number
EP2932520A1
EP2932520A1 EP13802986.3A EP13802986A EP2932520A1 EP 2932520 A1 EP2932520 A1 EP 2932520A1 EP 13802986 A EP13802986 A EP 13802986A EP 2932520 A1 EP2932520 A1 EP 2932520A1
Authority
EP
European Patent Office
Prior art keywords
contacts
permanent
arc
branch
control
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.)
Withdrawn
Application number
EP13802986.3A
Other languages
German (de)
French (fr)
Inventor
Didier Rodrigues
Denis Frigiere
Jean-Marc Willieme
Frank Jacquier
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP2932520A1 publication Critical patent/EP2932520A1/en
Withdrawn legal-status Critical Current

Links

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
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/122—Load break switches both breaker and sectionaliser being enclosed, e.g. in SF6-filled container
    • 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
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
    • 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
    • H01H33/42—Driving mechanisms
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/64—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
    • 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
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/125—Load break switches comprising a separate circuit breaker

Definitions

  • the invention relates to high voltage electrical circuits. More particularly, the invention relates to an improved apparatus for power failure.
  • High-voltage circuits can include, among others, two types of power cut-off devices: circuit breakers and disconnectors.
  • An isolator has only one set of contacts, called permanent contacts. Permanent contacts of a disconnector may be in the air. When closed, the disconnector passes current through permanent contacts. When open, the permanent contacts of a disconnector are separated by a distance offering a certain dielectric strength (or withstand).
  • a circuit breaker has a set of main contacts, also called permanent contacts, and a set of arc contacts. In known manner, these two sets of contacts are arranged in a closed volume containing a gas favorable to the extinction of the electric arc, and therefore to the breaking of the current. When closed, the circuit breaker passes current through permanent contacts. During his maneuver opening, the permanent contacts and the arc contacts separate.
  • a circuit breaker and a disconnector are generally used in series to combine the characteristics and advantages of each device: the breaking capacity of the circuit breaker and the dielectric strength of the disconnector.
  • Such a series architecture comprises two separate commands: the control of the circuit breaker, and the control of the disconnector.
  • FIG. 1 illustrates such a series connection of a circuit-breaker 11 and a disconnector 21.
  • the circuit-breaker 11 has a set of permanent contacts 12 and a set of arcing contacts 13.
  • the disconnector 21 has a set of permanent contacts 22. Here, all the sets of contacts 12, 13 and 22 are shown in their open position.
  • the apparatus described in this document discloses a circuit breaker having a plurality of concentric outer tubes forming the main contacts, and arc contacts, internal to the tubes.
  • a disconnect switch is integrated in the circuit breaker, inside the tubes and aligned longitudinally with the arcing contacts.
  • This device has the particularity of having a mechanical control in the form of a hub content in a tree.
  • the shaft has a lever connected to a tube of the sliding circuit breaker.
  • the hub has a lever connected to a movable bow contact rod.
  • the hub further comprises a connecting rod connected to a sliding contact of the disconnector.
  • This architecture has the disadvantage of using a complex command to put in motion the different elements.
  • the object of the invention is to propose an alternative to existing disjunctuator-disconnector combinations which is simple, offers great flexibility of use and is economical.
  • the invention thus relates to a current-breaking device comprising a set of arcing contacts, a set of isolating contacts and a set of permanent contacts, a first branch comprising the arcing contact set and the set of contacts. severely connected in series, a second branch having the set of permanent contacts, the second branch being connected in parallel with the first branch, each set of contacts admitting a respective open position and a respective closed position.
  • the current-breaking apparatus comprises a first command and a second command, the first command making it possible to simultaneously trigger the switching of the set of arcing contacts and the set of permanent contacts from one position to the other , the second command for switching the set of sectioning contacts between its two positions, the set of sectioning contacts can switch to its open position only when the arc contact set and the set of permanent contacts are in their open position, the two commands being separate commands, the second command being an actuation button connected to an electric motor.
  • the current almost exclusively passes through a single set of contacts, those of the second branch, hence their denomination of permanent contacts, when the circuit is closed, limiting the losses by Joule effect.
  • the set of arcing contacts is isolated independently of the set of permanent contacts in a gas tight volume containing sulfur hexafluoride (SF6).
  • SF6 sulfur hexafluoride
  • This insulating gas having very good insulating and arc resorbing properties the invention advantageously makes it possible to limit the volume of the interrupting chamber.
  • the set of permanent contacts is isolated independently of the set of arcing contacts and the set of isolating contacts.
  • the invention also relates to a power failure method using a switchgear device comprising a set of arcing contacts, a set of sectioning contacts and a set of permanent contacts, a first branch comprising the set of contact contacts. arc and the set of series-connected disconnecting contacts, a second branch comprising the set of permanent contacts, the second branch being connected in parallel with the first branch, each set of contacts admitting a respective open position and a respective closed position, the switchgear further comprising a first command and a second command, the first command for simultaneously triggering the switch of the set of arc contacts and the set of permanent contacts from one position to another, the second command to toggle the set of sectioning contacts between its two positions, comprising the following steps:
  • both The commands are separate commands, the second command being an actuation button connected to an electric motor.
  • FIG. 1 is a schematic representation of a current switch device comprising a circuit breaker and a disconnector connected in series;
  • FIG. 2 is a schematic representation of a new switchgear apparatus.
  • the switchgear apparatus 30 has a cut-off module 31, and two dielectric separation modules 41 and 51.
  • the apparatus 30 further comprises two controls 61 and 62.
  • the breaking module 31 comprises a set of arc contacts 32.
  • the breaking module 31 has a closed position in which the current can pass through it and an open position in which the current is interrupted.
  • the contacts 32 are configured to support the formation of an electric arc during their separation (as well as when they are brought together when the power is restored), that is to say during a transition maneuver between the position closed and the open position.
  • the set of arcing contacts 32 is isolated in a closed volume containing sulfur hexafluoride (SF6) or another gas or gas mixture with the desired insulating properties or in a closed volume under vacuum, for example a light bulb. empty.
  • SF6 sulfur hexafluoride
  • a closed volume under vacuum for example a light bulb. empty.
  • the separation module 41 has a set of sectioning contacts 42.
  • the set of sectioning contacts 42 has an open position and a closed position. In the open position, the contacts 42 provide a dielectric function, that is to say an electrical insulation function by their distance.
  • the contacts 42 are isolated in a closed volume containing air, N 2 or another gas or gas mixture with the desired insulating properties.
  • the separation module 51 has a set of contacts 52.
  • the set of contacts 52 has an open position and a closed position. In the open position, the contacts 52 provide a dielectric function, that is to say an electrical insulation function by their distance.
  • the contacts 52 are isolated in a closed volume containing sulfur hexafluoride (SF6), air, N2 or another gas or gas mixture with the desired insulating properties.
  • SF6 sulfur hexafluoride
  • the module 41 being separated from the other modules, is polluted neither by the cutoff gases nor by the products generated by the arc.
  • the breaking module 31 and the separation module 41 are connected in series with each other, thus forming part of a first branch 11.
  • a second branch 72, of which the separation module 51 is part, is connected in parallel with the first branch 71.
  • the separation module 51 is connected at a first end of the first branch 71 to the breaking module 31 and at a second end from the first branch 71 to the separation module 41.
  • the first command 61 controls the simultaneous triggering of the opening of the breaking module 31 and the separation module 51.
  • the second control 62 controls the opening of the separation module 41.
  • the control 62 is a means for actuating an electric motor, for example an actuating button connected to an electric motor.
  • These two controls 61 and 62 are interlocked mechanically and / or electrically while being distinct, that is to say, controlled in opening independently of one another.
  • the interlocking is for example made by electrical logic. That is, the transmission of the opening or closing orders depends on the states of closure or opening of the different modules.
  • control 62 can operate opening the separation module 41 only when the modules 31 and 51 are in the open position. Conversely, the control 61 can be actuated in closing only when the set of contacts 42 is in the closed position.
  • the sizing of the switchgear is such that the electrical resistance of the branch 71 is greater than the resistance of the branch 72 by at least a factor of 10. Furthermore, by skin effect, the current density is lower than the resistance of the branch 72. At least a factor 100 in the branch 71. Thus, the Joule losses of the branch 71 are much smaller and negligible compared to those of the branch 72. We therefore speak of permanent contacts for the contacts 52.
  • the command 61 triggers the opening of the breaking module 31 and the separation module 51.
  • the architecture of the apparatus 30 is such that the contacts 52 separate before the arcing contacts 32. When the contacts 52 are separated, the current no longer circulates in the second branch 72.
  • the separation module 41 is then opened, that is to say the contacts 42 are separated by actuation of the second control 62, so as to prevent the current from recovering in the branch 71 during intervention on a portion of circuit disabled.
  • the set of contacts 42 is closed before the sets of contacts 32 and 52.
  • the control 62 is actuated so as to close the separation module 41, then the control 61 which triggers the closing of the breaking module 31 and the separation module 51.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

The invention relates to a circuit breaker apparatus comprising a set of arc contacts (32), a set of isolating contacts (42) and a set of permanent contacts (52), a first branch (71) comprising the set of arc and isolating contacts connected in series, a second branch (72) comprising the set of permanent contacts, the two branches being connected in parallel, comprising a first control (61) and a second control (62), the first control making it possible to simultaneously trigger the tripping of the set of arc contacts and of the set of permanent contacts, the second control making it possible to cause the set of isolating contacts to trip between its two positions only when the set of arc contacts and the set of permanent contacts are in their open position, the two controls being distinct controls, the second control being an actuation button linked to an electric motor.

Description

APPAREILLAGE DE COUPURE DE COURANT AMELIORE  IMPROVED CURRENT CUTTING APPARATUS
DESCRIPTION DESCRIPTION
DOMAINE TECHNIQUE TECHNICAL AREA
L' invention se rapporte aux circuits électriques sous haute tension. Plus particulièrement, l'invention concerne un appareil amélioré de coupure de courant . The invention relates to high voltage electrical circuits. More particularly, the invention relates to an improved apparatus for power failure.
ÉTAT DE LA TECHNIQUE ANTÉRIEURE STATE OF THE PRIOR ART
Les circuits haute tension peuvent comporter, parmi d'autres, deux types d'appareil de coupure de courant : les disjoncteurs et les sectionneurs . High-voltage circuits can include, among others, two types of power cut-off devices: circuit breakers and disconnectors.
Un sectionneur comporte un seul jeu de contacts, appelés contacts permanents. Les contacts permanents d'un sectionneur peuvent être dans l'air. Lorsqu'il est fermé, le sectionneur laisse passer le courant par les contacts permanents. Lorsqu'il est ouvert, les contacts permanents d'un sectionneur sont séparés d'une distance offrant une rigidité (ou tenue) diélectrique déterminée.  An isolator has only one set of contacts, called permanent contacts. Permanent contacts of a disconnector may be in the air. When closed, the disconnector passes current through permanent contacts. When open, the permanent contacts of a disconnector are separated by a distance offering a certain dielectric strength (or withstand).
Un disjoncteur comporte un jeu de contacts principaux, également appelés contacts permanents, et un jeu de contacts d'arc. De façon connue, ces deux jeux de contacts sont disposés dans un volume clos contenant un gaz favorable à l'extinction de l'arc électrique, et donc à la coupure du courant. Lorsqu'il est fermé, le disjoncteur laisse passer le courant par les contacts permanents. Lors de sa manœuvre d'ouverture, les contacts permanents puis les contacts d'arc se séparent. A circuit breaker has a set of main contacts, also called permanent contacts, and a set of arc contacts. In known manner, these two sets of contacts are arranged in a closed volume containing a gas favorable to the extinction of the electric arc, and therefore to the breaking of the current. When closed, the circuit breaker passes current through permanent contacts. During his maneuver opening, the permanent contacts and the arc contacts separate.
Un disjoncteur et un sectionneur sont généralement utilisés en série pour combiner les caractéristiques et avantages de chaque appareil : le pouvoir de coupure du disjoncteur et la rigidité diélectrique du sectionneur. Une telle architecture en série comporte deux commandes distinctes : la commande du disjoncteur, et la commande du sectionneur.  A circuit breaker and a disconnector are generally used in series to combine the characteristics and advantages of each device: the breaking capacity of the circuit breaker and the dielectric strength of the disconnector. Such a series architecture comprises two separate commands: the control of the circuit breaker, and the control of the disconnector.
La figure 1 illustre un tel branchement en série d'un disjoncteur 11 et d'un sectionneur 21. Le disjoncteur 11 présente un jeu de contacts permanents 12 et un jeu de contacts d'arc 13. Le sectionneur 21 présente un jeu de contacts permanents 22. Ici, tous les jeux de contacts 12, 13 et 22 sont représentés dans leur position ouverte.  FIG. 1 illustrates such a series connection of a circuit-breaker 11 and a disconnector 21. The circuit-breaker 11 has a set of permanent contacts 12 and a set of arcing contacts 13. The disconnector 21 has a set of permanent contacts 22. Here, all the sets of contacts 12, 13 and 22 are shown in their open position.
Dans un tel branchement, le courant est amené à traverser deux jeux de contacts permanents, ce qui donne lieu à des pertes importantes de puissance par effet Joule.  In such a connection, the current is passed through two sets of permanent contacts, which gives rise to significant power losses Joule effect.
On connaît par ailleurs la demande de brevet française FR 2 763 171 qui décrit un disjoncteur sectionneur combiné.  French patent application FR 2 763 171, which describes a combined disconnecting circuit breaker, is also known.
L'appareil décrit par ce document présente un disjoncteur ayant plusieurs tubes concentriques externes formant les contacts principaux, et des contacts d'arc, internes aux tubes. Un sectionneur est intégré au disjoncteur, à l'intérieur des tubes et aligné longitudinalement avec les contacts d'arc.  The apparatus described in this document discloses a circuit breaker having a plurality of concentric outer tubes forming the main contacts, and arc contacts, internal to the tubes. A disconnect switch is integrated in the circuit breaker, inside the tubes and aligned longitudinally with the arcing contacts.
Cet appareil a la particularité d'avoir une commande mécanique sous la forme d'un moyeu contenu dans un arbre. L'arbre présente un levier relié à un tube du disjoncteur coulissant. Le moyeu présente un levier relié à une tige formant contact d'arc mobile.This device has the particularity of having a mechanical control in the form of a hub content in a tree. The shaft has a lever connected to a tube of the sliding circuit breaker. The hub has a lever connected to a movable bow contact rod.
Le moyeu comporte encore une bielle reliée à un contact coulissant du sectionneur. The hub further comprises a connecting rod connected to a sliding contact of the disconnector.
L'entraînement en rotation de l'arbre permet successivement la séparation des contacts principaux du disjoncteur, des contacts d'arc, et enfin des contacts du sectionneur.  The rotational drive of the shaft successively allows the separation of the main contacts of the circuit breaker, the arcing contacts, and finally the contacts of the disconnector.
Cette architecture présente l'inconvénient d'utiliser une commande complexe pour mettre en mouvement les différents éléments.  This architecture has the disadvantage of using a complex command to put in motion the different elements.
De plus, le mouvement de l'ensemble des éléments est réalisé par une commande unique, ce qui diffère du mode de fonctionnement du branchement en série classique du disjoncteur et du sectionneur.  In addition, the movement of all the elements is achieved by a single command, which differs from the operating mode of conventional series connection of the circuit breaker and the disconnector.
L' invention vise à proposer une alternative aux combinaisons disj oncteur-sectionneur existantes qui soit simple, offre une grande flexibilité d'utilisation et économique.  The object of the invention is to propose an alternative to existing disjunctuator-disconnector combinations which is simple, offers great flexibility of use and is economical.
EXPOSÉ DE L' INVENTION STATEMENT OF THE INVENTION
L' invention porte ainsi sur un appareillage de coupure de courant comportant un jeu de contacts d'arc, un jeu de contacts de sectionnement et un jeu de contacts permanents, une première branche comportant le jeu de contacts d'arc et le jeu de contacts de sectionnement connectés en série, une deuxième branche comportant le jeu de contacts permanents, la deuxième branche étant connectée en parallèle de la première branche, chaque jeu de contacts admettant une position ouverte respective et une position fermée respective. L'appareillage de coupure de courant selon l'invention comporte une première commande et une deuxième commande, la première commande permettant de déclencher simultanément le basculement du jeu de contacts d'arc et du jeu de contacts permanents d'une position à l'autre, la deuxième commande permettant de faire basculer le jeu de contacts de sectionnement entre ses deux positions, le jeu de contacts de sectionnement ne pouvant basculer vers sa position ouverte que lorsque le jeu de contacts d'arc et le jeu de contacts permanents se trouvent dans leur position ouverte, les deux commandes étant des commandes distinctes, la deuxième commande étant un bouton d' actionnement relié à un moteur électrique. The invention thus relates to a current-breaking device comprising a set of arcing contacts, a set of isolating contacts and a set of permanent contacts, a first branch comprising the arcing contact set and the set of contacts. severely connected in series, a second branch having the set of permanent contacts, the second branch being connected in parallel with the first branch, each set of contacts admitting a respective open position and a respective closed position. The current-breaking apparatus according to the invention comprises a first command and a second command, the first command making it possible to simultaneously trigger the switching of the set of arcing contacts and the set of permanent contacts from one position to the other , the second command for switching the set of sectioning contacts between its two positions, the set of sectioning contacts can switch to its open position only when the arc contact set and the set of permanent contacts are in their open position, the two commands being separate commands, the second command being an actuation button connected to an electric motor.
Ainsi, avantageusement, dans l'appareillage de coupure selon l'invention, le courant passe quasiment exclusivement par un unique jeu de contacts, ceux de la deuxième branche, d'où leur dénomination de contacts permanents, lorsque le circuit est fermé, limitant les pertes par effet Joule.  Thus, advantageously, in the switchgear according to the invention, the current almost exclusively passes through a single set of contacts, those of the second branch, hence their denomination of permanent contacts, when the circuit is closed, limiting the losses by Joule effect.
La manipulation de l'appareillage de coupure se fait de manière aisée, c'est-à-dire que la présence d'une commande séparée pour la fonction diélectrique permet une manipulation indépendante et précise des contacts de sectionnement contrairement au brevet FR 2 763 171 dans lequel le sectionneur est actionné automatiquement aussitôt la coupure accomplie.  Handling of the switchgear is easy, that is to say that the presence of a separate control for the dielectric function allows independent and precise handling of the isolation contacts unlike the patent FR 2 763 171 in which the disconnector is actuated automatically as soon as the cut is completed.
Selon une caractéristique avantageuse de l'invention, le jeu de contacts d'arc est isolé indépendamment du jeu de contacts permanents dans un volume étanche aux gaz contenant de l'hexafluorure de soufre (SF6) . According to an advantageous characteristic of the invention, the set of arcing contacts is isolated independently of the set of permanent contacts in a gas tight volume containing sulfur hexafluoride (SF6).
Ce gaz isolant présentant de très bonnes propriétés d'isolation et de résorption d'arc, l'invention permet avantageusement de limiter le volume de la chambre de coupure.  This insulating gas having very good insulating and arc resorbing properties, the invention advantageously makes it possible to limit the volume of the interrupting chamber.
Selon une caractéristique avantageuse de l'invention, le jeu de contacts permanents est isolé indépendamment du jeu de contacts d'arc et du jeu de contacts de sectionnement.  According to an advantageous characteristic of the invention, the set of permanent contacts is isolated independently of the set of arcing contacts and the set of isolating contacts.
L' invention porte également sur un procédé de coupure de courant mettant en œuvre un appareillage de coupure comportant un jeu de contacts d'arc, un jeu de contacts de sectionnement et un jeu de contacts permanents, une première branche comportant le jeu de contacts d'arc et le jeu de contacts de sectionnement connectés en série, une deuxième branche comportant le jeu de contacts permanents, la deuxième branche étant connectée en parallèle de la première branche, chaque jeu de contacts admettant une position ouverte respective et une position fermée respective, l'appareillage de coupure comportant en outre une première commande et une deuxième commande, la première commande permettant de déclencher simultanément le basculement du jeu de contacts d'arc et du jeu de contacts permanents d'une position à l'autre, la deuxième commande permettant de faire basculer le jeu de contacts de sectionnement entre ses deux positions, comportant les étapes suivantes :  The invention also relates to a power failure method using a switchgear device comprising a set of arcing contacts, a set of sectioning contacts and a set of permanent contacts, a first branch comprising the set of contact contacts. arc and the set of series-connected disconnecting contacts, a second branch comprising the set of permanent contacts, the second branch being connected in parallel with the first branch, each set of contacts admitting a respective open position and a respective closed position, the switchgear further comprising a first command and a second command, the first command for simultaneously triggering the switch of the set of arc contacts and the set of permanent contacts from one position to another, the second command to toggle the set of sectioning contacts between its two positions, comprising the following steps:
- ouverture par basculement vers leur position ouverte du jeu de contacts d'arc et du jeu de contacts permanents par la première commande lors d'un ordre d'ouverture. - opening by tilting to their open position the set of arc contacts and the set of permanent contacts by the first order during an opening order.
- séparation diélectrique par la deuxième commande des contacts de sectionnement, ceux-ci ne pouvant être séparés l'un de l'autre que lorsque le jeu de contacts d'arc et le jeu de contacts permanents se trouvent dans leur position ouverte, les deux commandes étant des commandes distinctes, la deuxième commande étant un bouton d' actionnement relié à un moteur électrique.  dielectric separation by the second control of the isolation contacts, which can only be separated from one another when the arc contact set and the set of permanent contacts are in their open position, both The commands are separate commands, the second command being an actuation button connected to an electric motor.
BRÈVE DESCRIPTION DES DESSINS BRIEF DESCRIPTION OF THE DRAWINGS
On décrira à présent, à titre d'exemples non limitatifs, des modes de réalisation de l'invention, en se référant aux dessins annexés, dans lesquels : Embodiments of the invention will now be described, by way of nonlimiting examples, with reference to the accompanying drawings, in which:
- la figure 1 est une représentation schématique connue d'un appareillage de coupure de courant comportant un disjoncteur et un sectionneur branchés en série ;  - Figure 1 is a schematic representation of a current switch device comprising a circuit breaker and a disconnector connected in series;
- la figure 2 est une représentation schématique d'un nouvel appareillage de coupure de courant .  - Figure 2 is a schematic representation of a new switchgear apparatus.
EXPOSÉ DÉTAILLÉ DE MODES DE RÉALISATION PARTICULIERS DETAILED PRESENTATION OF PARTICULAR EMBODIMENTS
L'appareillage de coupure de courant 30 présente un module de coupure 31, et deux modules de séparation diélectrique 41 et 51. The switchgear apparatus 30 has a cut-off module 31, and two dielectric separation modules 41 and 51.
L'appareillage 30 comporte en outre deux commandes 61 et 62. Le module de coupure 31 comporte un jeu de contacts d'arc 32. Le module de coupure 31 admet une position fermée dans laquelle le courant peut le traverser et une position ouverte dans laquelle le courant est interrompu. Les contacts 32 sont configurés pour supporter la formation d'un arc électrique lors de leur séparation (ainsi que lors de leur rapprochement lorsqu'on rétablit le courant), c'est-à- dire lors d'une manœuvre de transition entre la position fermée et la position ouverte. The apparatus 30 further comprises two controls 61 and 62. The breaking module 31 comprises a set of arc contacts 32. The breaking module 31 has a closed position in which the current can pass through it and an open position in which the current is interrupted. The contacts 32 are configured to support the formation of an electric arc during their separation (as well as when they are brought together when the power is restored), that is to say during a transition maneuver between the position closed and the open position.
Le jeu de contacts d'arc 32 est isolé dans un volume clos contenant de l'hexafluorure de soufre (SF6) ou un autre gaz ou mélange de gaz aux propriétés isolantes souhaitées ou encore dans un volume clos sous vide, par exemple une ampoule à vide.  The set of arcing contacts 32 is isolated in a closed volume containing sulfur hexafluoride (SF6) or another gas or gas mixture with the desired insulating properties or in a closed volume under vacuum, for example a light bulb. empty.
Le module de séparation 41 comporte un jeu de contacts de sectionnement 42. Le jeu de contacts de sectionnement 42 admet une position ouverte et une position fermée. En position ouverte, les contacts 42 assurent une fonction diélectrique, c'est-à-dire une fonction d'isolation électrique par leur éloignement.  The separation module 41 has a set of sectioning contacts 42. The set of sectioning contacts 42 has an open position and a closed position. In the open position, the contacts 42 provide a dielectric function, that is to say an electrical insulation function by their distance.
Les contacts 42 sont isolés dans un volume clos contenant de l'air, du N2 ou un autre gaz ou mélange de gaz aux propriétés isolantes souhaitées.  The contacts 42 are isolated in a closed volume containing air, N 2 or another gas or gas mixture with the desired insulating properties.
Le module de séparation 51 comporte un jeu de contacts 52. Le jeu de contacts 52 admet une position ouverte et une position fermée. En position ouverte, les contacts 52 assurent une fonction diélectrique, c'est-à-dire une fonction d'isolation électrique par leur éloignement. Les contacts 52 sont isolés dans un volume clos contenant de l'hexafluorure de soufre (SF6) , de l'air, du N2 ou un autre gaz ou mélange de gaz aux propriétés isolantes souhaitées. The separation module 51 has a set of contacts 52. The set of contacts 52 has an open position and a closed position. In the open position, the contacts 52 provide a dielectric function, that is to say an electrical insulation function by their distance. The contacts 52 are isolated in a closed volume containing sulfur hexafluoride (SF6), air, N2 or another gas or gas mixture with the desired insulating properties.
Le module 41, étant séparé des autres modules, n'est pollué ni par les gaz de coupure ni par les produits générés par l'arc.  The module 41, being separated from the other modules, is polluted neither by the cutoff gases nor by the products generated by the arc.
On adaptera la nature du gaz ainsi que sa pression à la fonction du module.  The nature of the gas and its pressure will be adapted to the function of the module.
Le module de coupure 31 et le module de séparation 41 sont connectés en série l'un avec l'autre, faisant ainsi partie d'une première branche 11.  The breaking module 31 and the separation module 41 are connected in series with each other, thus forming part of a first branch 11.
Une deuxième branche 72, dont le module de séparation 51 fait partie, est branchée en parallèle de la première branche 71. Le module de séparation 51 est connecté en une première extrémité de la première branche 71 au module de coupure 31 et en une deuxième extrémité de la première branche 71 au module de séparation 41.  A second branch 72, of which the separation module 51 is part, is connected in parallel with the first branch 71. The separation module 51 is connected at a first end of the first branch 71 to the breaking module 31 and at a second end from the first branch 71 to the separation module 41.
La première commande 61 contrôle le déclenchement simultané de l'ouverture du module de coupure 31 et du module de séparation 51.  The first command 61 controls the simultaneous triggering of the opening of the breaking module 31 and the separation module 51.
La deuxième commande 62 contrôle l'ouverture du module de séparation 41. Ici, la commande 62 est un moyen d' actionnement d'un moteur électrique, par exemple un bouton d' actionnement relié à un moteur électrique.  The second control 62 controls the opening of the separation module 41. Here, the control 62 is a means for actuating an electric motor, for example an actuating button connected to an electric motor.
Ces deux commandes 61 et 62 sont inter verrouillées mécaniquement et/ou électriquement tout en étant distinctes, c'est-à-dire contrôlées en ouverture indépendamment l'une de l'autre. L' interverrouillage est par exemple réalisé par logique électrique. C'est- à-dire que la transmission des ordres d'ouverture ou de fermeture dépend des états de fermeture ou d' ouverture des différents modules. These two controls 61 and 62 are interlocked mechanically and / or electrically while being distinct, that is to say, controlled in opening independently of one another. The interlocking is for example made by electrical logic. That is, the transmission of the opening or closing orders depends on the states of closure or opening of the different modules.
Dans l'exemple, la commande 62 ne peut actionner en ouverture le module de séparation 41 que lorsque les modules 31 et 51 sont en position ouverte. Inversement, la commande 61 ne peut être actionnée en fermeture que lorsque le jeu de contacts 42 est en position fermée.  In the example, the control 62 can operate opening the separation module 41 only when the modules 31 and 51 are in the open position. Conversely, the control 61 can be actuated in closing only when the set of contacts 42 is in the closed position.
A l'état fermé de l'appareillage de coupure, c'est-à-dire lorsque le courant le traverse, les modules 31, 41 et 51 sont tous en position fermée.  In the closed state of the switchgear, that is to say when the current passes through it, the modules 31, 41 and 51 are all in the closed position.
Le dimensionnement de l'appareillage de coupure est tel que la résistance électrique de la branche 71 est supérieure à la résistance de la branche 72 d'au moins un facteur 10. En outre, par effet de peau, la densité de courant est inférieure d'au moins un facteur 100 dans la branche 71. Ainsi, les pertes par effet Joule de la branche 71 sont très inférieures et négligeables par rapport à celles de la branche 72. On parle donc de contacts permanents pour les contacts 52.  The sizing of the switchgear is such that the electrical resistance of the branch 71 is greater than the resistance of the branch 72 by at least a factor of 10. Furthermore, by skin effect, the current density is lower than the resistance of the branch 72. At least a factor 100 in the branch 71. Thus, the Joule losses of the branch 71 are much smaller and negligible compared to those of the branch 72. We therefore speak of permanent contacts for the contacts 52.
On décrit ci-après les étapes de coupure du courant .  The steps of breaking the current are described below.
La commande 61 déclenche l'ouverture du module de coupure 31 et du module de séparation 51.  The command 61 triggers the opening of the breaking module 31 and the separation module 51.
L'architecture de l'appareillage 30 est telle que les contacts 52 se séparent avant les contacts d' arc 32. Lorsque les contacts 52 sont séparés, le courant ne circule plus dans la deuxième branche 72. The architecture of the apparatus 30 is such that the contacts 52 separate before the arcing contacts 32. When the contacts 52 are separated, the current no longer circulates in the second branch 72.
Lorsque les contacts d'arc 32 se séparent, il se forme un arc électrique. A l'extinction de l'arc, le courant est interrompu dans les deux branches 71 et 72.  When the arcing contacts 32 separate, an electric arc is formed. At the extinction of the arc, the current is interrupted in the two branches 71 and 72.
On ouvre alors le module de séparation 41, c'est-à-dire qu'on sépare les contacts 42 par actionnement de la deuxième commande 62, de manière à empêcher le courant de se rétablir dans la branche 71 pendant intervention sur une portion de circuit désactivée .  The separation module 41 is then opened, that is to say the contacts 42 are separated by actuation of the second control 62, so as to prevent the current from recovering in the branch 71 during intervention on a portion of circuit disabled.
On décrit enfin les étapes de fermeture de l'appareillage pour le rétablissement du courant.  Finally, the closing steps of the equipment for the restoration of the current are described.
On ferme le jeu de contacts 42 avant les jeux de contacts 32 et 52.  The set of contacts 42 is closed before the sets of contacts 32 and 52.
On actionne la commande 62 de manière à fermer le module de séparation 41, puis la commande 61 qui déclenche la fermeture du module de coupure 31 et du module de séparation 51.  The control 62 is actuated so as to close the separation module 41, then the control 61 which triggers the closing of the breaking module 31 and the separation module 51.
A la fermeture, les contacts d'arc 32 se rejoignent avant les contacts 52. Lorsque les contacts d'arc 32 se rapprochent, un arc électrique se crée et persiste jusqu'à leur jonction. Les contacts 52 entrent alors en contact et le courant est rétabli.  On closing, the arcing contacts 32 meet before the contacts 52. When the arcing contacts 32 come closer, an electric arc is created and persists until they join. The contacts 52 then come into contact and the current is restored.

Claims

REVENDICATIONS
1. Appareillage de coupure de courant comportant un jeu de contacts d'arc (32), un jeu de contacts de sectionnement (42) et un jeu de contacts permanents (52), une première branche (71) comportant le jeu de contacts d'arc (32) et le jeu de contacts de sectionnement (42) connectés en série, une deuxième branche (72) comportant le jeu de contacts permanents (52), la deuxième branche (72) étant connectée en parallèle de la première branche (71), chaque jeu de contacts (32, 42, 52) admettant une position ouverte respective et une position fermée respective, caractérisé en ce qu' il comporte une première commande (61) et une deuxième commande (62), la première commande (61) permettant de déclencher simultanément le basculement du jeu de contacts d'arc (32) et du jeu de contacts permanents (52) d'une position à l'autre, la deuxième commande (62) permettant de faire basculer le jeu de contacts de sectionnement (42) entre ses deux positions, le jeu de contacts de sectionnement (42) ne pouvant basculer vers sa position ouverte que lorsque le jeu de contacts d'arc (32) et le jeu de contacts permanents (52) se trouvent dans leur position ouverte, les deux commandes (61, 62) étant des commandes distinctes, la deuxième commande (62) étant un bouton d' actionnement relié à un moteur électrique. Switchgear apparatus comprising a set of arc contacts (32), a set of sectioning contacts (42) and a set of permanent contacts (52), a first branch (71) having the set of contacts arc (32) and the set of sectioning contacts (42) connected in series, a second branch (72) having the set of permanent contacts (52), the second branch (72) being connected in parallel with the first branch ( 71), each set of contacts (32, 42, 52) having a respective open position and a respective closed position, characterized in that it comprises a first command (61) and a second command (62), the first command ( 61) for simultaneously triggering the tilting of the set of arc contacts (32) and the set of permanent contacts (52) from one position to another, the second command (62) for switching the set of contacts sectioning (42) between its two positions, the sectional contact set nt (42) can swing to its open position only when the set of arc contacts (32) and the set of permanent contacts (52) are in their open position, the two controls (61, 62) being controls separate, the second control (62) being an actuating button connected to an electric motor.
2. Appareillage de coupure selon la revendication précédente, le jeu de contacts d'arc (32) étant isolé indépendamment du jeu de contacts permanents (52) dans un volume étanche aux gaz contenant de l'hexafluorure de soufre (SF6) . 2. Switchgear according to the preceding claim, the arc contact set (32) being isolated independently of the set of contacts. (52) in a gas-tight volume containing sulfur hexafluoride (SF6).
3. Appareillage de coupure selon l'une des revendications précédentes, le jeu de contacts permanents (52) étant isolé indépendamment du jeu de contacts d'arc (32) et du jeu de contacts de sectionnement (42) . 3. Switchgear according to one of the preceding claims, the set of permanent contacts (52) being isolated independently of the set of arcing contacts (32) and the set of isolating contacts (42).
4. Procédé de coupure de courant mettant en œuvre un appareillage de coupure comportant un jeu de contacts d'arc (32), un jeu de contacts de sectionnement (42) et un jeu de contacts permanents (52), une première branche (71) comportant le jeu de contacts d'arc (32) et le jeu de contacts de sectionnement (42) connectés en série, une deuxième branche (72) comportant le jeu de contacts permanents (52), la deuxième branche (72) étant connectée en parallèle de la première branche (71), chaque jeu de contacts (32, 42, 52) admettant une position ouverte respective et une position fermée respective, l'appareillage de coupure comportant en outre une première commande (61) et une deuxième commande (62), la première commande (61) permettant de déclencher simultanément le basculement du jeu de contacts d'arc (32) et du jeu de contacts permanents (52) d'une position à l'autre, la deuxième commande (62) permettant de faire basculer le jeu de contacts de sectionnement (42) entre ses deux positions, comportant les étapes suivantes : - ouverture par basculement vers leur position ouverte du jeu de contacts d'arc (32) et du jeu de contacts permanents (52) par la première commande (61) lors d'un ordre d'ouverture. 4. A method of breaking power using a switchgear device comprising a set of arc contacts (32), a set of sectioning contacts (42) and a set of permanent contacts (52), a first branch (71) ) having the set of arc contacts (32) and the set of sectional contacts (42) connected in series, a second branch (72) having the set of permanent contacts (52), the second branch (72) being connected parallel to the first leg (71), each set of contacts (32, 42, 52) having a respective open position and a respective closed position, the switchgear further comprising a first control (61) and a second control (62), the first control (61) for simultaneously triggering the switching of the arc contact set (32) and the set of permanent contacts (52) from one position to the other, the second control (62) to toggle the set of sectioning contacts (42) between two positions, consisting of the following steps: opening by opening the set of arc contacts (32) and the set of permanent contacts (52) to their open position by the first control (61) during an opening command.
- séparation diélectrique par la deuxième commande (62) des contacts de sectionnement (42), ceux- ci ne pouvant être séparés l'un de l'autre que lorsque le jeu de contacts d'arc (32) et le jeu de contacts permanents (52) se trouvent dans leur position ouverte, les deux commandes (61, 62) étant des commandes distinctes, la deuxième commande (62) étant un bouton d' actionnement relié à un moteur électrique.  - dielectric separation by the second control (62) of the disconnecting contacts (42), which can be separated from each other only when the set of arcing contacts (32) and the set of permanent contacts (52) are in their open position, the two controls (61, 62) being separate controls, the second control (62) being an actuating button connected to an electric motor.
EP13802986.3A 2012-12-12 2013-12-11 Improved circuit breaker apparatus Withdrawn EP2932520A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1261956A FR2999331B1 (en) 2012-12-12 2012-12-12 IMPROVED CURRENT CUTTING APPARATUS
PCT/EP2013/076252 WO2014090887A1 (en) 2012-12-12 2013-12-11 Improved circuit breaker apparatus

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EP2932520A1 true EP2932520A1 (en) 2015-10-21

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EP (1) EP2932520A1 (en)
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WO (1) WO2014090887A1 (en)

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Publication number Priority date Publication date Assignee Title
FR3028089B1 (en) 2014-10-30 2016-12-30 Alstom Technology Ltd MEDIUM OR HIGH VOLTAGE SWITCH OR CIRCUIT BREAKER WITH ENHANCED FIXED CONTACTS AND METHOD OF USE
FR3029351B1 (en) 2014-12-02 2017-12-29 Alstom Technology Ltd ELECTRICAL CUTTING DEVICE INTEGRATING CIRCUIT BREAKER AND DISCONNECT

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Publication number Priority date Publication date Assignee Title
US3857006A (en) * 1973-10-30 1974-12-24 Hitachi Ltd Gas insulated switching apparatus
FR2719154B1 (en) * 1994-04-25 1996-06-07 Merlin Gerin Medium voltage electric switch.
DE19511168A1 (en) * 1995-03-28 1996-10-02 Abb Management Ag Switching device
FR2763171B1 (en) * 1997-05-07 1999-07-09 Gec Alsthom T & D Sa CIRCUIT BREAKER
FR2770678B1 (en) * 1997-10-30 1999-12-31 Gec Alsthom T & D Sa GENERATOR CIRCUIT BREAKER WITH SINGLE MECHANICAL CONTROL
FR2772184B1 (en) * 1997-12-08 2000-01-28 Gec Alsthom T & D Sa CONTROL OF INTERROLLING OF A CIRCUIT BREAKER AND A DISCONNECTOR
JP3799924B2 (en) * 2000-01-11 2006-07-19 株式会社日立製作所 Power circuit breaker and power plant electrical circuit device
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FR2901055B1 (en) * 2006-05-12 2008-07-04 Areva T & D Sa ALTERNATOR DISCONNECT CIRCUIT BREAKER ACTUATED BY A MOTOR SERVO
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WO2014090887A1 (en) 2014-06-19
US20150318124A1 (en) 2015-11-05
FR2999331A1 (en) 2014-06-13

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