EP1906425B1 - Actuation of the contacts by cylindrical cam of an arcing-chamber with double movement. - Google Patents

Actuation of the contacts by cylindrical cam of an arcing-chamber with double movement. Download PDF

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Publication number
EP1906425B1
EP1906425B1 EP07117220A EP07117220A EP1906425B1 EP 1906425 B1 EP1906425 B1 EP 1906425B1 EP 07117220 A EP07117220 A EP 07117220A EP 07117220 A EP07117220 A EP 07117220A EP 1906425 B1 EP1906425 B1 EP 1906425B1
Authority
EP
European Patent Office
Prior art keywords
contact
axis
cylinder
chamber according
interrupting chamber
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.)
Not-in-force
Application number
EP07117220A
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German (de)
French (fr)
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EP1906425A1 (en
Inventor
Jean-Luc Bourgeois
Joël Ozil
Christophe Creusot
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Grid Solutions SAS
Original Assignee
Areva T&D SAS
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Publication date
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Publication of EP1906425A1 publication Critical patent/EP1906425A1/en
Application granted granted Critical
Publication of EP1906425B1 publication Critical patent/EP1906425B1/en
Not-in-force legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/904—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism characterised by the transmission between operating mechanism and piston or movable contact
    • 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
    • H01H2033/028—Details the cooperating contacts being both actuated simultaneously in opposite directions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric

Definitions

  • the invention relates to high or medium voltage circuit breakers, whose operating energy is reduced by a double movement of the contacts.
  • the invention relates to the actuation in opposite directions of the contacts of a circuit breaker breaking chamber via a cylindrical cam.
  • the medium and high voltage switchgear apparatus comprises a pair of movable contacts relative to each other between a closed position in which the electric current can flow and an open position in which the electric current is interrupted.
  • the speed of separation between the contacts is one of the main parameters to guarantee the dielectric strength of the circuit breaker when it is opened.
  • main contact an electrical contact (with its corona shield) through which the nominal current flows;
  • movable contact the main contact assembly and arc contact directly connected to the operating member.
  • the opposite moving contact also composed of a main contact and an arc contact, is moved via a kinematic, which is itself connected to the moving contact.
  • the document EP 0 822 565 described in the preamble of claim 1 a circuit breaker for high and medium voltage in which a lever with two arms, one being connected to a nozzle secured to a first contact and the other to a second contact, allows the movement first contact simultaneously causes the second contact in the opposite direction.
  • the invention proposes, among other advantages, to overcome the drawbacks described above, and in particular to allow better reliability for a double-contact interrupting chamber contacts.
  • the invention thus relates to the use of a cylindrical cam to move in inverse translation two contacts of a breaking chamber: the movement in a direction of the main contact causes the rotation of a cylinder that drives the movement in the opposite direction of the second opposite contact; according to one option, the actuation of the cylinder itself causes the two contacts to move in opposite directions.
  • Each of the contacts is connected by a rod which is attached to a member which slides in a cylinder lumen.
  • the design of the lights is carried out to obtain a specific speed ratio.
  • the light relative to the driving of the main contact may comprise parts of different inclinations with respect to the axis, and in particular at least one longitudinal end portion along the axis: when triggering the movement of the main contact, the rotation of the cylinder is latency as the sliding member moves in this part, for example to allow the contact of reach a certain speed before separation.
  • the invention relates to a breaking chamber for a high or medium voltage circuit breaker which comprises two movable contacts relative to each other in opposite directions along an axis, and held by a contact holder. preferably symmetrical around the axis of displacement of the contacts.
  • the two contacts are connected by connecting means, in particular rods which are fixed at one end, to a driving cylinder provided with slots in which sliding elements secured to the other end of the rods can be moved.
  • a dielectric nozzle is integral with the main contact, and serves as a point of attachment to the corresponding connection means.
  • the drive rods of a contact are doubled, one end of each being fixed to the contact so as to be diametrically opposed, and advantageously interconnected at the other end by a bar. which is orthogonal to them and slides in two symmetrical lights of the cylinder.
  • This configuration makes it possible to limit the forces on the contacts and / or the nozzle.
  • the sliding elements are, for at least part of them, coupled to lugs which also slide in guide grooves arranged in the contact holder of the interrupting chamber.
  • the grooves are parallel to the axis of rotation, so that a pure translational movement of the connection means and therefore the contacts is ensured.
  • the invention in another aspect, relates to a high or medium voltage circuit breaker provided with a breaking chamber whose driving of the contacts is effected by means of a cylindrical cam.
  • FIGS. 1A and 1B schematically represent a double-movement interrupting chamber provided with the drive device according to one embodiment of the invention, respectively in closed and open positions.
  • the Figure 2A shows more precisely a drive system according to a preferred embodiment of the invention, and the Figure 2B illustrates the associated connection means.
  • FIGS. 3A and 3B are two views of a driving cylinder according to one embodiment of the invention.
  • a high or medium voltage circuit breaker comprises a breaking chamber 10 which can be filled with an SF 6 type dielectric gas.
  • the interrupting chamber 10 comprises a first contact 12 and a second contact 14; the first movable contact 12 is composed of an arc contact 12a and a main contact (not shown), and the second contact (or opposite movable contact) 14 is also composed of an arc contact 14a and a main contact 14b.
  • the first contact 12 comprises a part in the form of a racking-in pliers and the second contact 14 comprises a portion in cylindrical form that can be inserted into the racking-in tongs: these two elements collaborate between a closed position ( Figure 1A ) in which the two contacts 12, 14 allow the passage of the electric current between them and an open position ( Figure 1B ) in which they are separated from each other.
  • the two contacts 12, 14 move in opposite directions; the main contacts 14b separate, then the arcing contacts 12a, 14a separate, after a possible latency period created by the length of the racking, forming an electric arc that extinguishes by the subsequent spacing of the contacts 12 14.
  • the main contact here the first contact 12 (even if, in the claims in particular, it could be the second contact 14) is usually secured to a nozzle 16 of dielectric material , extending the clamp plugging 12 to the second contact 14, which itself extends a gas compression volume: this dielectric nozzle forming a neck serves as a gas blowing nozzle from the compression volume towards the electric arc, and can for example allow degassing in the presence of an electric arc and participate in the blowing of the arc.
  • the two contacts 12, 14 and the nozzle 16 are guided inside a permanent contact holder 18 along the main axis AA of the breaking chamber 10 of the circuit breaker.
  • the breaking chamber 10, the nozzle 16, the first and second contacts 12, 14 are symmetrical about the axis AA; the contact holder 18 may take the usual various forms, including two diametrically opposed rails or four rails spaced 90 °, or a cylindrical envelope.
  • Each of the contacts 12, 14 is actuated in spacing or approximation by means of a single actuating system, comprising an operating member (not shown) and drive means 20.
  • an operating member not shown
  • the movement of the main contact 12 by the operating member during the tripping of the circuit breaker drives the drive means 20 which move the secondary contact 14; an option is that the operating member actuates the drive means 20 which cause the displacement in opposite directions of the contacts 12, 14.
  • the drive means 20 comprise a cylindrical element 22 of revolution about the axis AA of the chamber 10, advantageously located in the contact holder 18 on the side of the second contact 14, that is to say that along the axis AA, there is the following order: main contact 12, nozzle 16, secondary contact 14 and cylinder 22.
  • the drive cylinder 22 preferably has only one degree of freedom, namely the rotation around the AA axis; for example, two locking systems 24, such as bearings or bearings, are arranged on each side of the cylinder 22 along the axis AA (see Figure 2A ).
  • the cylinder 22 acts in the manner of a cam; it is provided with drive lights 26, 28 which pass through its wall in a specific profile, at least part of each light having a slope with respect to the direction of the axis AA, that is to say wrapping around the axis AA, forming a substantially helical pattern.
  • the drive of each of the two contacts 12, 14 is in the opposite direction, the contacts 12, 14 being secured to the lights by connecting means 30.
  • the first light 26 dedicated to the driving of the first contact 12 therefore comprises a portion sloping whose angle is of opposite sign to that of the slope of the second light 28 dedicated to driving the second contact 14.
  • connection means 30 of each of the contacts 12, 14 with its light 26, 28 during the displacement, for facilitate assembly, and to not unnecessarily weaken the cylinder 22, it is preferable that the drive lights 26, 28 of each of the contacts 12, 14 are entirely formed in a clean part of the cylinder 22.
  • an example of configuration thus comprises a first slot 26 serving during the actuation of the first contact 12 and having a substantially helical portion s for example winding clockwise on a first end portion of the cylinder 22 on the side of the contacts 12, 14, then the second end portion of the cylinder 22, opposite the contacts 12, 14 along of the axis AA, has a second slot 28 which comprises a substantially helical portion winding in the trigonometrical direction.
  • the connection between the first contact 12 and the drive device 20 is advantageously carried out by a rod 32, one end of which is fixed to the first contact 12, or preferably to the nozzle 16.
  • the displacement of the rod 32 is authorized only in the direction of translation parallel to the axis AA, for example by fixing bolted to the nozzle 16.
  • the rod 32 is secured at its second end to a sliding element 34 which cooperates with the first light 26: a translation of the first contact 12 and the nozzle 16, for example by means of a known actuator, moves the rod 32 in translation along the axis AA, and causes a displacement of the element sliding 34 in the slot 26, thus causing a rotation of the cylinder 22.
  • the sliding element 34 is preferably guided in a groove 36 formed in the fixed contact holder 18, by the intermediate for example a lug 38 which extends; the groove 36 is parallel to the direction of movement of the contact 12, that is to say parallel to the axis AA ( Figure 2A ).
  • a lug 38 which extends; the groove 36 is parallel to the direction of movement of the contact 12, that is to say parallel to the axis AA ( Figure 2A ).
  • lug 38 may be provided, but it is desirable that it be more or less locked in the groove 36; for example, the groove 36 has an internal enlargement in the wall of the contact holder 18 where it is formed and the lug 38 has a protrusion which is maintained there.
  • the rod 32 is advantageously located inside the cylinder 22 so as to have more latitude in the design of the lights 26, 28 thanks to a larger diameter and therefore a larger developed surface; advantageously, the cylinder 22 has an outer diameter close to the internal diameter of the contact holder 18 or the external diameter of the contacts or nozzle 12, 14, 16.
  • second contact 14 advantageously the same geometry of drive and connection is achieved, with two second rods 42, 42 'fixedly coupled to one end at the second contact 14, and secured at the other end to elements 44, 44 'sliding in two second lumens 28, 28' of the cylinder 22.
  • a second bar 50 perpendicular to the rods 42, 42 ' keeps them apart and cooperates at each end with two rails 46, 46' for guiding the door contact 18 via two pins 48, 48 '.
  • the two holding bars 40, 50 are perpendicular to each other.
  • the second contact 14 is driven only via a single second rod 42, even if the first contact 12 drives two first rods 32, 32 '.
  • Other configurations are also possible, depending on the size, the forces involved, ....
  • the profile of the first and second lights 26, 28 makes it possible to manage the race of the two contacts 12, 14 relative to each other; more precisely, it makes it possible to optimize the stroke of the second contact 14 with respect to that of the main contact 12.
  • the speed and the amplitude of the rotation of the cylinder 22 depend on the speed of the main contact 12 when the circuit breaker and the profile of the (each) first light 26.
  • the rotation of the cylinder 22 and the profile of the (each) second light 28 make it possible to define the amplitude and the speed of displacement of the second movable contact 14.
  • each first light 26 comprises at each end a first portion parallel to the axis AA: at the beginning of actuation in particular, the main contact 12 increases in speed while remaining in the closed position, and it is not useful that the cylindrical cam 22 rotates; once a certain speed is reached, the second contact 14 is driven to obtain a maximum spacing speed during the separation and the arc generation, and the two lights 26, 28 are oriented at an angle almost opposite one another. to the other.
  • the actuation according to the invention is easy to achieve, by simple parts to manufacture and with increased tolerances through the various means to guarantee the displacement in the desired direction, such as the rails 36, 46, the lugs 38, 48, the bars 40, 50, ....
  • the solution according to the invention makes it possible to define an optimal contact displacement profile 12, 14, that is to say to better manage the travel and the speed of displacement of the second opposite contact 14 with respect to the main contact 12, without resorting to complex configuration calculations, and allows easy editing.
  • interrupting chamber 10 can remain the same axial size, which is advantageous especially in the case of an SF 6 circuit breaker.

Landscapes

  • Circuit Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Scissors And Nippers (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)

Abstract

A drive unit moves the hollow cylinder in rotation around the axis. A connection structure comprises a main contact with slidably mounted element cooperating with the slot (26) and a contact (14) with slidably mounted element cooperating with the slot (28). The slidably mounted elements moves in the respective slots in translation and in opposite direction along the axis of rotation of cylinder, when the cylinder moves in rotation around the axis.

Description

DOMAINE TECHNIQUETECHNICAL AREA

L'invention concerne les disjoncteurs à haute ou moyenne tension, dont l'énergie de manoeuvre est réduite grâce à un double mouvement des contacts.The invention relates to high or medium voltage circuit breakers, whose operating energy is reduced by a double movement of the contacts.

Plus particulièrement, l'invention se rapporte à l'actionnement en sens opposé des contacts d'une chambre de coupure d'un disjoncteur par l'intermédiaire d'une came cylindrique.More particularly, the invention relates to the actuation in opposite directions of the contacts of a circuit breaker breaking chamber via a cylindrical cam.

ÉTAT DE LA TECHNIQUE ANTÉRIEURESTATE OF THE PRIOR ART

Les appareillages de coupure pour moyenne et haute tension comprennent une paire de contacts mobiles l'un par rapport à l'autre entre une position fermée dans laquelle le courant électrique peut circuler et une position ouverte dans laquelle le courant électrique est interrompu.The medium and high voltage switchgear apparatus comprises a pair of movable contacts relative to each other between a closed position in which the electric current can flow and an open position in which the electric current is interrupted.

La vitesse de séparation entre les contacts est un des paramètres principaux pour garantir la tenue diélectrique du disjoncteur lors de son ouverture. Pour réduire l'énergie de manoeuvre tout en augmentant la vitesse lors notamment d'une coupure d'un disjoncteur, il a ainsi été proposé de concevoir deux contacts mobiles l'un et l'autre, actionnés par l'intermédiaire d'un seul système.The speed of separation between the contacts is one of the main parameters to guarantee the dielectric strength of the circuit breaker when it is opened. In order to reduce the maneuvering energy while increasing the speed especially in the event of a break in a circuit breaker, it has thus been proposed to design two movable contacts, one and the other, actuated by means of a single system.

Par convention, on appelle « contact principal » un contact électrique (avec son capot pare-effluve) par lequel transite le courant nominal ; on appelle « contact mobile » l'ensemble contact principal et contact d'arc directement connecté à l'organe de manoeuvre. Le contact mobile opposé, composé lui aussi d'un contact principal et d'un contact d'arc, est déplacé via une cinématique, qui est elle-même connectée au contact mobile.By convention, we call "main contact" an electrical contact (with its corona shield) through which the nominal current flows; the term "movable contact" the main contact assembly and arc contact directly connected to the operating member. The opposite moving contact, also composed of a main contact and an arc contact, is moved via a kinematic, which is itself connected to the moving contact.

En particulier, le document EP 0 822 565 décrit selon le préambule de la revendication 1 un disjoncteur pour haute et moyenne tension dans lequel un levier à deux bras, l'un étant connecté à une buse solidaire d'un premier contact et l'autre à un deuxième contact, permet que le mouvement du premier contact entraîne simultanément le deuxième contact en sens inverse.In particular, the document EP 0 822 565 described in the preamble of claim 1 a circuit breaker for high and medium voltage in which a lever with two arms, one being connected to a nozzle secured to a first contact and the other to a second contact, allows the movement first contact simultaneously causes the second contact in the opposite direction.

Il apparaît cependant que le rapport des vitesses de séparation des contacts joue un rôle important lors de la coupure de courant et la génération d'arc en résultant. Or, l'actionnement par levier ne permet pas de le modifier.However, it appears that the ratio of contact separation speeds plays an important role during the power failure and the resulting arc generation. However, the operation by lever does not allow to change it.

Une solution à ce problème a concerné l'utilisation d'un mécanisme à came, tel que décrit dans le document EP 1 211 706 : la buse solidaire du premier contact d'arc est reliée, par l'intermédiaire d'une tige, à une came pivotante. Lors du déclenchement, la came entraîne une deuxième tige reliée au deuxième contact d'arc, de sorte que le mouvement dans une première direction du premier contact entraîne le mouvement en sens inverse du deuxième contact.One solution to this problem has been the use of a cam mechanism, as described in the document EP 1 211 706 : the nozzle integral with the first arcing contact is connected, via a rod, to a pivoting cam. Upon firing, the cam drives a second rod connected to the second arcing contact, so that movement in a first direction of the first contact causes movement in the opposite direction of the second contact.

Cette solution permet, par le dessin des pistes de came, d'obtenir un rapport de vitesse variable au cours du déplacement des contacts. Cependant, la construction de ce système est complexe, et le mouvement de pivotement de la came accompagné du guidage des tiges dans les pistes peut poser des problèmes de fiabilité au cours du temps, en particulier par un dérèglement des positions des différents axes de déplacement.This solution makes it possible, by the drawing of the cam tracks, to obtain a speed ratio variable while moving contacts. However, the construction of this system is complex, and the pivoting movement of the cam accompanied by guide rods in the tracks can cause reliability problems over time, in particular by a disordered positions of the various axes of displacement.

EXPOSÉ DE L'INVENTIONSTATEMENT OF THE INVENTION

L'invention propose, parmi autres avantages, de pallier des inconvénients décrits ci-dessus, et de permettre notamment une meilleure fiabilité pour une chambre de coupure à double mouvement des contacts.The invention proposes, among other advantages, to overcome the drawbacks described above, and in particular to allow better reliability for a double-contact interrupting chamber contacts.

Ceci est atteint avec une chambre de coupure pour un disjoncteur selon les caractéristiques de la revendication 1 et avec un disjoncteur ayant une telle chambre de coupure selon la revendication 15.This is achieved with an interrupting chamber for a circuit breaker according to the features of claim 1 and with a circuit breaker having such a breaking chamber according to claim 15.

Sous l'un de ses aspects, l'invention se rapporte ainsi à l'utilisation d'une came cylindrique pour déplacer en translation inverse deux contacts d'une chambre de coupure : le mouvement dans une direction du contact principal entraîne la rotation d'un cylindre qui entraîne le mouvement dans la direction opposée du deuxième contact opposé ; selon une option, l'actionnement du cylindre lui-même entraîne le déplacement des deux contacts en sens opposé. Chacun des contacts est relié par une tige qui y est fixée à un élément qui coulisse dans une lumière du cylindre.In one of its aspects, the invention thus relates to the use of a cylindrical cam to move in inverse translation two contacts of a breaking chamber: the movement in a direction of the main contact causes the rotation of a cylinder that drives the movement in the opposite direction of the second opposite contact; according to one option, the actuation of the cylinder itself causes the two contacts to move in opposite directions. Each of the contacts is connected by a rod which is attached to a member which slides in a cylinder lumen.

La conception des lumières est réalisée pour obtenir un rapport de vitesse spécifique. En particulier, la lumière relative à l'entraînement du contact principal peut comprendre des parties d'inclinaisons différentes par rapport à l'axe, et notamment au moins une partie d'extrémité longitudinale selon l'axe : lors du déclenchement du mouvement du contact principal, la rotation du cylindre subit une latence tant que l'élément coulissant se déplace dans cette partie, par exemple pour permettre au contact d'atteindre une certaine vitesse avant la séparation.The design of the lights is carried out to obtain a specific speed ratio. In particular, the light relative to the driving of the main contact may comprise parts of different inclinations with respect to the axis, and in particular at least one longitudinal end portion along the axis: when triggering the movement of the main contact, the rotation of the cylinder is latency as the sliding member moves in this part, for example to allow the contact of reach a certain speed before separation.

Sous un aspect préféré, l'invention concerne une chambre de coupure pour un disjoncteur haute ou moyenne tension qui comprend deux contacts mobiles l'un par rapport à l'autre en sens inverse le long d'un axe, et maintenus par un porte contact, de préférence symétrique autour de l'axe de déplacement des contacts. Les deux contacts sont reliés par des moyens de connexion, en particulier des tiges qui y sont fixées par une extrémité, à un cylindre d'entraînement muni de lumières dans lesquelles peuvent se déplacer des éléments coulissants solidarisés à l'autre extrémité des tiges. Avantageusement, une buse diélectrique est solidaire du contact principal, et sert de point de fixation aux moyens de connexion correspondants.In a preferred aspect, the invention relates to a breaking chamber for a high or medium voltage circuit breaker which comprises two movable contacts relative to each other in opposite directions along an axis, and held by a contact holder. preferably symmetrical around the axis of displacement of the contacts. The two contacts are connected by connecting means, in particular rods which are fixed at one end, to a driving cylinder provided with slots in which sliding elements secured to the other end of the rods can be moved. Advantageously, a dielectric nozzle is integral with the main contact, and serves as a point of attachment to the corresponding connection means.

De préférence, les tiges d'entraînement d'un contact, et notamment du contact principal, sont doublées, une extrémité de chacune étant fixée au contact de manière à être diamétralement opposées, et avantageusement reliées entre elles à l'autre extrémité par une barre qui leur est orthogonale et coulisse dans deux lumières symétriques du cylindre. Cette configuration permet de limiter les efforts sur les contacts et/ou la buse.Preferably, the drive rods of a contact, and in particular of the main contact, are doubled, one end of each being fixed to the contact so as to be diametrically opposed, and advantageously interconnected at the other end by a bar. which is orthogonal to them and slides in two symmetrical lights of the cylinder. This configuration makes it possible to limit the forces on the contacts and / or the nozzle.

Avantageusement, les éléments coulissants sont, pour au moins partie d'entre eux, couplés à des ergots qui coulissent eux aussi dans des rainures de guidage aménagées dans le porte contact de la chambre de coupure. Les rainures sont parallèles à l'axe de rotation, de sorte qu'un mouvement de translation pure des moyens de connexion et donc des contacts est assuré.Advantageously, the sliding elements are, for at least part of them, coupled to lugs which also slide in guide grooves arranged in the contact holder of the interrupting chamber. The grooves are parallel to the axis of rotation, so that a pure translational movement of the connection means and therefore the contacts is ensured.

Sous un autre aspect, l'invention concerne un disjoncteur haute ou moyenne tension muni d'une chambre de coupure dont l'entraînement des contacts est effectué par l'intermédiaire d'une came cylindrique.In another aspect, the invention relates to a high or medium voltage circuit breaker provided with a breaking chamber whose driving of the contacts is effected by means of a cylindrical cam.

BRÈVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

Les caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre et en référence aux dessins annexés, donnés à titre illustratif et nullement limitatifs.The features and advantages of the invention will be better understood on reading the description which follows and with reference to the accompanying drawings, given by way of illustration and in no way limitative.

Les figures 1A et 1B représentent schématiquement une chambre de coupure à double mouvement munie du dispositif d'entraînement selon un mode de réalisation de l'invention, respectivement en positions fermée et ouverte.The Figures 1A and 1B schematically represent a double-movement interrupting chamber provided with the drive device according to one embodiment of the invention, respectively in closed and open positions.

La figure 2A montre plus précisément un système d'entraînement selon un mode de réalisation préféré de l'invention, et la figure 2B illustre les moyens de connexion associés.The Figure 2A shows more precisely a drive system according to a preferred embodiment of the invention, and the Figure 2B illustrates the associated connection means.

Les figures 3A et 3B sont deux vues d'un cylindre d'entraînement selon un mode de réalisation de l'invention.The Figures 3A and 3B are two views of a driving cylinder according to one embodiment of the invention.

EXPOSÉ DÉTAILLÉ DE MODES DE RÉALISATION PARTICULIERSDETAILED PRESENTATION OF PARTICULAR EMBODIMENTS

Un disjoncteur à haute ou moyenne tension comprend une chambre de coupure 10 qui peut être remplie d'un gaz diélectrique de type SF6. La chambre de coupure 10 comprend un premier contact 12 et un deuxième contact 14 ; le premier contact mobile 12 est composé d'un contact d'arc 12a et d'un contact principal (non illustré), et le deuxième contact (ou contact mobile opposé) 14 est lui aussi composé d'un contact d'arc 14a et d'un contact principal 14b. Classiquement, le premier contact 12 comprend une partie sous forme de pince d'embrochage et le deuxième contact 14 comprend une partie sous forme cylindrique pouvant s'insérer dans la pince d'embrochage : ces deux éléments collaborent entre une position fermée (figure 1A) dans laquelle les deux contacts 12, 14 permettent le passage du courant électrique entre eux et une position ouverte (figure 1B) dans laquelle ils sont séparés l'un de l'autre.A high or medium voltage circuit breaker comprises a breaking chamber 10 which can be filled with an SF 6 type dielectric gas. The interrupting chamber 10 comprises a first contact 12 and a second contact 14; the first movable contact 12 is composed of an arc contact 12a and a main contact (not shown), and the second contact (or opposite movable contact) 14 is also composed of an arc contact 14a and a main contact 14b. Conventionally, the first contact 12 comprises a part in the form of a racking-in pliers and the second contact 14 comprises a portion in cylindrical form that can be inserted into the racking-in tongs: these two elements collaborate between a closed position ( Figure 1A ) in which the two contacts 12, 14 allow the passage of the electric current between them and an open position ( Figure 1B ) in which they are separated from each other.

Lors de la procédure de coupure, les deux contacts 12, 14 se déplacent en sens opposé ; les contacts principaux 14b se séparent, puis les contacts d'arc 12a, 14a se séparent, après une période de latence éventuelle créée par la longueur de l'embrochage, formant un arc électrique qui s'éteint par l'écartement ultérieur des contacts 12, 14. Pour améliorer cette extinction d'arc, le contact principal, ici le premier contact 12 (même si, dans les revendications notamment, il pourrait s'agir du deuxième contact 14) est usuellement solidaire d'une buse 16 en matériau diélectrique, prolongeant la pince d'embrochage 12 vers le deuxième contact 14, qui elle-même prolonge un volume de compression de gaz : cette buse 16 diélectrique formant un col sert de tuyère de soufflage du gaz issu du volume de compression en direction de l'arc électrique, et peut par exemple permettre un dégazage en présence d'un arc électrique et participer au soufflage de l'arc.During the cutting procedure, the two contacts 12, 14 move in opposite directions; the main contacts 14b separate, then the arcing contacts 12a, 14a separate, after a possible latency period created by the length of the racking, forming an electric arc that extinguishes by the subsequent spacing of the contacts 12 14. To improve this arc extinction, the main contact, here the first contact 12 (even if, in the claims in particular, it could be the second contact 14) is usually secured to a nozzle 16 of dielectric material , extending the clamp plugging 12 to the second contact 14, which itself extends a gas compression volume: this dielectric nozzle forming a neck serves as a gas blowing nozzle from the compression volume towards the electric arc, and can for example allow degassing in the presence of an electric arc and participate in the blowing of the arc.

D'autres systèmes peuvent également être prévus, comme par exemple des chambres de compression et soufflage de gaz.Other systems may also be provided, such as compression chambers and gas blowing.

Les deux contacts 12, 14 et la buse 16 sont guidés à l'intérieur d'un porte contact permanent 18 le long de l'axe principal AA de la chambre de coupure 10 du disjoncteur. De préférence, la chambre de coupure 10, la buse 16, les premier et deuxième contacts 12, 14 sont symétriques autour de l'axe AA ; le porte contact 18 peut prendre les formes variées usuelles, notamment deux rails diamétralement opposés ou quatre rails écartés de 90°, ou une enveloppe cylindrique.The two contacts 12, 14 and the nozzle 16 are guided inside a permanent contact holder 18 along the main axis AA of the breaking chamber 10 of the circuit breaker. Preferably, the breaking chamber 10, the nozzle 16, the first and second contacts 12, 14 are symmetrical about the axis AA; the contact holder 18 may take the usual various forms, including two diametrically opposed rails or four rails spaced 90 °, or a cylindrical envelope.

Chacun des contacts 12, 14 est actionné en écartement ou rapprochement par l'intermédiaire d'un unique système d'actionnement, comprenant un organe de manoeuvre (non illustré) et des moyens d'entraînement 20. De fait, classiquement, le déplacement du contact principal 12 par l'organe de manoeuvre lors du déclenchement du disjoncteur entraîne les moyens d'entraînement 20 qui déplacent le contact secondaire 14 ; une option est que l'organe de manoeuvre actionne les moyens d'entraînement 20 qui provoquent le déplacement en sens opposé des contacts 12, 14.Each of the contacts 12, 14 is actuated in spacing or approximation by means of a single actuating system, comprising an operating member (not shown) and drive means 20. In fact, conventionally, the movement of the main contact 12 by the operating member during the tripping of the circuit breaker drives the drive means 20 which move the secondary contact 14; an option is that the operating member actuates the drive means 20 which cause the displacement in opposite directions of the contacts 12, 14.

Selon l'invention, les moyens d'entraînement 20 comprennent un élément cylindrique 22 de révolution autour de l'axe AA de la chambre 10, avantageusement localisé dans le porte contact 18 du côté du deuxième contact 14, c'est-à-dire que, selon l'axe AA, on a l'ordre suivant : contact principal 12, buse 16, contact secondaire 14 et cylindre 22. Le cylindre d'entraînement 22 ne possède de préférence qu'un degré de liberté, à savoir la rotation autour de l'axe AA ; par exemple, deux systèmes de blocage 24, comme des roulements ou des paliers, sont disposés de chaque côté du cylindre 22 le long de l'axe AA (voir figure 2A).According to the invention, the drive means 20 comprise a cylindrical element 22 of revolution about the axis AA of the chamber 10, advantageously located in the contact holder 18 on the side of the second contact 14, that is to say that along the axis AA, there is the following order: main contact 12, nozzle 16, secondary contact 14 and cylinder 22. The drive cylinder 22 preferably has only one degree of freedom, namely the rotation around the AA axis; for example, two locking systems 24, such as bearings or bearings, are arranged on each side of the cylinder 22 along the axis AA (see Figure 2A ).

Le cylindre 22 agit à la manière d'une came ; il est muni de lumières d'entraînement 26, 28 qui traversent sa paroi selon un profil déterminé, une partie au moins de chaque lumière comportant une pente par rapport à la direction de l'axe AA, c'est-à-dire s'enroulant autour de l'axe AA, en formant un dessin sensiblement hélicoïdal.The cylinder 22 acts in the manner of a cam; it is provided with drive lights 26, 28 which pass through its wall in a specific profile, at least part of each light having a slope with respect to the direction of the axis AA, that is to say wrapping around the axis AA, forming a substantially helical pattern.

L'entraînement de chacun des deux contacts 12, 14 se fait en sens inverse, les contacts 12, 14 étant solidarisés aux lumières par des moyens de connexion 30. La première lumière 26 dédiée à l'entraînement du premier contact 12 comporte donc une partie pentue dont l'angle est de signe opposé à celui de la pente de la deuxième lumière 28 dédiée à l'entraînement du deuxième contact 14.The drive of each of the two contacts 12, 14 is in the opposite direction, the contacts 12, 14 being secured to the lights by connecting means 30. The first light 26 dedicated to the driving of the first contact 12 therefore comprises a portion sloping whose angle is of opposite sign to that of the slope of the second light 28 dedicated to driving the second contact 14.

De plus, pour éviter toute interaction entre les moyens de connexion 30 de chacun des contacts 12, 14 avec sa lumière 26, 28 lors du déplacement, pour faciliter le montage, et pour ne pas fragiliser inutilement le cylindre 22, il est préférable que les lumières d'entraînement 26, 28 de chacun des contacts 12, 14 soient entièrement formées dans une partie propre du cylindre 22. Dans le mode de réalisation préféré où le cylindre est du côté du deuxième contact 14, pour compenser la différence de longueur des moyens de connexion 30, un exemple de configuration comprend ainsi une première lumière 26 servant lors de l'actionnement du premier contact 12 et comportant une partie sensiblement hélicoïdale s'enroulant par exemple dans le sens des aiguilles d'une montre sur une première partie d'extrémité du cylindre 22 du côté des contacts 12, 14, puis la deuxième partie d'extrémité du cylindre 22, opposée aux contacts 12, 14 le long de l'axe AA, comporte une deuxième lumière 28 qui comprend une partie sensiblement hélicoïdale s'enroulant dans le sens trigonométrique.In addition, to avoid any interaction between the connection means 30 of each of the contacts 12, 14 with its light 26, 28 during the displacement, for facilitate assembly, and to not unnecessarily weaken the cylinder 22, it is preferable that the drive lights 26, 28 of each of the contacts 12, 14 are entirely formed in a clean part of the cylinder 22. In the preferred embodiment where the cylinder is on the side of the second contact 14, to compensate for the difference in length of the connection means 30, an example of configuration thus comprises a first slot 26 serving during the actuation of the first contact 12 and having a substantially helical portion s for example winding clockwise on a first end portion of the cylinder 22 on the side of the contacts 12, 14, then the second end portion of the cylinder 22, opposite the contacts 12, 14 along of the axis AA, has a second slot 28 which comprises a substantially helical portion winding in the trigonometrical direction.

La connexion entre le premier contact 12 et le dispositif d'entraînement 20 est avantageusement réalisée par une tige 32 dont une extrémité est fixée au premier contact 12, ou de préférence à la buse 16. Le déplacement de la tige 32 n'est autorisé que dans le sens de la translation parallèle à l'axe AA, par exemple par fixation boulonnée sur la buse 16. La tige 32 est solidarisée à sa deuxième extrémité à un élément coulissant 34 qui coopère avec la première lumière 26 : une translation du premier contact 12 et de la buse 16, par exemple par l'intermédiaire d'un organe de manoeuvre connu, déplace en translation la tige 32 le long de l'axe AA, et entraîne un déplacement de l'élément coulissant 34 dans la lumière 26, amenant ainsi une rotation du cylindre 22.The connection between the first contact 12 and the drive device 20 is advantageously carried out by a rod 32, one end of which is fixed to the first contact 12, or preferably to the nozzle 16. The displacement of the rod 32 is authorized only in the direction of translation parallel to the axis AA, for example by fixing bolted to the nozzle 16. The rod 32 is secured at its second end to a sliding element 34 which cooperates with the first light 26: a translation of the first contact 12 and the nozzle 16, for example by means of a known actuator, moves the rod 32 in translation along the axis AA, and causes a displacement of the element sliding 34 in the slot 26, thus causing a rotation of the cylinder 22.

Afin d'éviter tout mouvement parasite, et notamment une rotation de l'élément 34 accompagnée d'une torsion de la tige 32, l'élément coulissant 34 est de préférence guidé dans une rainure 36 aménagée dans le porte contact fixe 18, par l'intermédiaire par exemple d'un ergot 38 qui le prolonge ; la rainure 36 est parallèle au sens de déplacement du contact 12, c'est-à-dire parallèle à l'axe AA (figure 2A). Diverses configurations pour l'ergot 38 peuvent être prévues, mais il est souhaitable qu'il soit plus ou moins bloqué dans la rainure 36 ; par exemple, la rainure 36 présente un élargissement interne dans la paroi du porte contact 18 où elle est formée et l'ergot 38 présente une protubérance qui s'y maintient. La tige 32 est avantageusement localisée à l'intérieur du cylindre 22 de façon à avoir plus de latitude dans le dessin des lumières 26, 28 grâce à une diamètre supérieur et donc une surface développée plus grande ; avantageusement, le cylindre 22 a un diamètre externe proche du diamètre interne du porte contact 18 ou du diamètre externe des contacts ou buse 12, 14, 16.In order to avoid any parasitic movement, and in particular a rotation of the element 34 accompanied by a twisting of the rod 32, the sliding element 34 is preferably guided in a groove 36 formed in the fixed contact holder 18, by the intermediate for example a lug 38 which extends; the groove 36 is parallel to the direction of movement of the contact 12, that is to say parallel to the axis AA ( Figure 2A ). Various configurations for the lug 38 may be provided, but it is desirable that it be more or less locked in the groove 36; for example, the groove 36 has an internal enlargement in the wall of the contact holder 18 where it is formed and the lug 38 has a protrusion which is maintained there. The rod 32 is advantageously located inside the cylinder 22 so as to have more latitude in the design of the lights 26, 28 thanks to a larger diameter and therefore a larger developed surface; advantageously, the cylinder 22 has an outer diameter close to the internal diameter of the contact holder 18 or the external diameter of the contacts or nozzle 12, 14, 16.

Par ailleurs, pour équilibrer les efforts sur la buse 16 et le contact 12, il est avantageux de disposer de deux tiges de connexion 32, 32', fixées de façon diamétralement opposée, et coopérant avec deux premières lumières 26, 26' de même dessin et décalées de 180° sur le cylindre 22 (figures 2 et 3). Dans ce cas, il est préférable, pour augmenter encore la symétrie et la rigidité, que l'écartement des deux tiges 32, 32' soit assuré également à l'extrémité d'actionnement, en reliant les deux tiges 32, 32' et les éléments coulissants 34, 34' par une barre 40 qui traverse le cylindre 22. La barre 40 est alors fixée perpendiculairement aux tiges 32, 32', et donc à l'axe AA, et comprend les deux éléments coulissants 34, 34' et de préférence deux ergots 38, 38' qui coopèrent avec deux rails de guidage 36, 36' diamétralement opposés sur le porte contact 18.Furthermore, to balance the forces on the nozzle 16 and the contact 12, it is advantageous to have two connecting rods 32, 32 ', fixed diametrically opposite, and cooperating with two first lights 26, 26' of the same drawing. and shifted 180 ° on the cylinder 22 ( figures 2 and 3 ). In this case, it is preferable, to further increase symmetry and rigidity, that the spacing of the two rods 32, 32 'is also provided at the actuating end, connecting the two rods 32, 32' and the sliding elements 34, 34 'by a bar 40 which passes through the cylinder 22. The bar 40 is then fixed perpendicularly. to the rods 32, 32 ', and therefore to the axis AA, and comprises the two sliding elements 34, 34' and preferably two lugs 38, 38 'which cooperate with two guide rails 36, 36' diametrically opposite on the door contact 18.

En ce qui concerne le deuxième contact 14, avantageusement la même géométrie d'entraînement et de connexion est réalisée, avec deux deuxièmes tiges 42, 42' couplées à une extrémité de façon fixe au deuxième contact 14, et solidarisées à l'autre extrémité à des éléments 44, 44' coulissant dans deux deuxièmes lumières 28, 28' du cylindre 22. Une deuxième barre 50 perpendiculaire aux tiges 42, 42' les maintient écartées et coopère à chaque extrémité avec deux rails 46, 46' de guidage sur le porte contact 18 par l'intermédiaire de deux ergots 48, 48'.With regard to the second contact 14, advantageously the same geometry of drive and connection is achieved, with two second rods 42, 42 'fixedly coupled to one end at the second contact 14, and secured at the other end to elements 44, 44 'sliding in two second lumens 28, 28' of the cylinder 22. A second bar 50 perpendicular to the rods 42, 42 'keeps them apart and cooperates at each end with two rails 46, 46' for guiding the door contact 18 via two pins 48, 48 '.

De préférence, pour optimiser la rigidité de la came cylindrique 22, les deux barres de maintien 40, 50 sont perpendiculaires l'une à l'autre.Preferably, to optimize the rigidity of the cylindrical cam 22, the two holding bars 40, 50 are perpendicular to each other.

Il est possible cependant que le deuxième contact 14 ne soit entraîné que par l'intermédiaire d'une seule deuxième tige 42, même si le premier contact 12 entraîne deux premières tiges 32, 32'. D'autres configurations sont également possibles, en fonction de l'encombrement, des forces en présence, ... .It is possible, however, that the second contact 14 is driven only via a single second rod 42, even if the first contact 12 drives two first rods 32, 32 '. Other configurations are also possible, depending on the size, the forces involved, ....

Le profil des premières et deuxièmes lumières 26, 28 permet de gérer la course des deux contacts 12, 14 l'un par rapport à l'autre ; plus précisément, il permet d'optimiser la course du deuxième contact 14 par rapport à celle du contact principal 12. De fait, la vitesse et l'amplitude de la rotation du cylindre 22 dépendent de la vitesse du contact principal 12 lors du déclenchement du disjoncteur et du profil de la(chaque) première lumière 26. La rotation du cylindre 22 et le profil de la(chaque) deuxième lumière 28 permettent de définir l'amplitude et la vitesse de déplacement du deuxième contact mobile 14.The profile of the first and second lights 26, 28 makes it possible to manage the race of the two contacts 12, 14 relative to each other; more precisely, it makes it possible to optimize the stroke of the second contact 14 with respect to that of the main contact 12. In fact, the speed and the amplitude of the rotation of the cylinder 22 depend on the speed of the main contact 12 when the circuit breaker and the profile of the (each) first light 26. The rotation of the cylinder 22 and the profile of the (each) second light 28 make it possible to define the amplitude and the speed of displacement of the second movable contact 14.

Par exemple, il est souhaitable d'avoir une somme des vitesses des deux contacts 12, 14 maximale après la séparation des contacts, afin d'optimiser l'énergie d'ouverture. Un profil de lumières 26, 28 adapté est illustré en figures 3, dans lesquelles on constate que chaque première lumière 26 comprend à chaque extrémité une première portion parallèle à l'axe AA : en début d'actionnement notamment, le contact principal 12 gagne en vitesse tout en restant en position fermée, et il n'est pas utile que la came cylindrique 22 tourne ; une fois une certaine vitesse atteinte, le deuxième contact 14 est entraîné pour obtenir une vitesse maximale d'écartement lors de la séparation et de la génération d'arc, et les deux lumières 26, 28 sont orientées selon un angle quasiment opposé l'un à l'autre.For example, it is desirable to have a sum of the speeds of the two contacts 12, 14 maximum after the separation of the contacts, in order to optimize the opening energy. An adapted light profile 26, 28 is illustrated in FIG. figures 3 , in which it is found that each first light 26 comprises at each end a first portion parallel to the axis AA: at the beginning of actuation in particular, the main contact 12 increases in speed while remaining in the closed position, and it is not useful that the cylindrical cam 22 rotates; once a certain speed is reached, the second contact 14 is driven to obtain a maximum spacing speed during the separation and the arc generation, and the two lights 26, 28 are oriented at an angle almost opposite one another. to the other.

Diverses géométries sont possibles.Various geometries are possible.

L'actionnement selon l'invention est facile à réaliser, par des pièces simples à fabriquer et avec des tolérances accrues grâce aux différents moyens permettant de garantir le déplacement selon la direction voulue, comme les rails 36, 46, les ergots 38, 48, les barres 40, 50, ... . La solution selon l'invention permet de définir un profil de déplacement des contacts 12, 14 optimal, c'est-à-dire de gérer au mieux la course et la vitesse de déplacement du deuxième contact opposé 14 par rapport au contact principal 12, sans recours à des calculs complexes de configuration, et autorise un montage aisé.The actuation according to the invention is easy to achieve, by simple parts to manufacture and with increased tolerances through the various means to guarantee the displacement in the desired direction, such as the rails 36, 46, the lugs 38, 48, the bars 40, 50, .... The solution according to the invention makes it possible to define an optimal contact displacement profile 12, 14, that is to say to better manage the travel and the speed of displacement of the second opposite contact 14 with respect to the main contact 12, without resorting to complex configuration calculations, and allows easy editing.

De plus, la chambre de coupure 10 peut rester de même encombrement axial, ce qui est avantageux notamment dans le cas d'un disjoncteur à SF6.In addition, the interrupting chamber 10 can remain the same axial size, which is advantageous especially in the case of an SF 6 circuit breaker.

Claims (15)

  1. An interrupting chamber (10) for a high-voltage or medium-voltage circuit-breaker, said interrupting chamber extending longitudinally along an axis (AA), and containing at least:
    · first and second contacts (12, 14) mounted to move along the axis (AA) and moving in opposite directions relative to each other, between a closed position in which they are in mutual contact and an open position in which they are separated; and
    · drive means (20) making it possible to move the two contacts (12, 14);
    · connection means (30) between each of the contacts (12, 14) and the drive means (20);
    characterizing in that:
    · the drive means (20) comprise a hollow cylinder (22) mounted to move in rotation around the axis (AA) of the chamber (10);
    · in its wall, the cylinder (22) presents at least a first slot (26) and a second slot (28), each of which has a portion inclined at an angle of opposite sign relative to the axis (AA);
    · the connection means (30) of the first contact (12) comprise a first slidably mounted element (34) co-operating with a first slot (26), and the connection means (30) of the second contact (14) comprise a second slidably mounted element (44) co-operating with a second slot (28);
    · so that, when the cylinder (22) moves in rotation around the axis (AA), the first and second slidably mounted elements (34, 44) move in their respective slots (26, 28) in translation and in opposite directions along the axis of rotation (AA) of the cylinder (22).
  2. An interrupting chamber according to claim 1, containing a drive member that is functionally connected to the first contact (12) so as to move it, thereby moving the cylinder (22) in rotation and moving the second contact (14) in translation in the opposite direction.
  3. An interrupting chamber according to claim 1 or claim 2, in which the connection means of both of the contacts (12, 14) are of identical type.
  4. An interrupting chamber according to any one of claims 1 to 3, in which the connection means of the first contact (12) comprise a first rod (32) fastened at one end to the first sliding element (34) and secured at its other end to the first contact (12) in fixed manner.
  5. An interrupting chamber according to claim 4, in which the cylinder (22) is provided with two first slots (26, 26') having the same shape and offset by 180° relative to each other about the axis, and in which the connection means of the first contact (12) comprise two first rods (32, 32') one end of each of which is connected in fixed manner to the first contact (12) in diametrically opposite manner, and the other end of each of which is fastened to a first slidably mounted element (34, 34') that co-operates with one of the first slots (26, 26').
  6. An interrupting chamber according to claim 5 containing a connection bar (40) interconnecting the first slidably mounted elements (34, 34') and fastened perpendicularly to the rods (32, 32').
  7. An interrupting chamber according to claim 6, in which the wall of the cylinder (22) is provided with two second slots (28, 28') and the second connection means comprise a second bar (50) mounted to slide in the second slots, the two bars (40, 50) forming an angle of 90°.
  8. An interrupting chamber according to any one of claims 1 to 7, containing a longitudinal contact holder (18) which is extended along the cylinder (22) and in which at least one of the sliding elements (34, 44) is extended by a snug (38, 48) that co-operates slidably with a guide groove (36, 46) in the contact holder (18) of the chamber (10).
  9. An interrupting chamber according to claim 8, in which each guide groove (36, 46) is linear along the axis (AA).
  10. An interrupting chamber according to any one of claims 1 to 9, further containing a nozzle (16) made of a dielectric material that is coupled in fixed manner to a "main" one of the contacts (12).
  11. An interrupting chamber according to claim 10, in which the connection means of the main contact (12) are secured directly to the nozzle (16).
  12. An interrupting chamber according to any one of claims 1 to 11, in which the cylinder (22) is locked in translation along the axis (AA), e.g. by two rolling bearings (24).
  13. An interrupting chamber according to any one of claims 1 to 12, in which the profile of the first drive slots (26) for driving the first contact (12) is different from the profile of the second drive slots (28) for driving the second contact (14).
  14. An interrupting chamber according to claim 13, in which the first drive slot(s) (26) for driving the first contact (12) include(s) at least one end portion that is parallel to the axis of rotation (AA).
  15. A high-voltage or medium-voltage circuit-breaker including an interrupting chamber according to any one of claims 1 to 14.
EP07117220A 2006-09-29 2007-09-26 Actuation of the contacts by cylindrical cam of an arcing-chamber with double movement. Not-in-force EP1906425B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0654031A FR2906642B1 (en) 2006-09-29 2006-09-29 CYLINDRICAL CAM ACTUATION OF THE CONTACTS OF A DOUBLE MOVEMENT CUTTING CHAMBER.

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EP1906425A1 EP1906425A1 (en) 2008-04-02
EP1906425B1 true EP1906425B1 (en) 2009-07-01

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US (1) US7777149B2 (en)
EP (1) EP1906425B1 (en)
CN (1) CN101170033B (en)
AT (1) ATE435498T1 (en)
CA (1) CA2603158C (en)
DE (1) DE602007001427D1 (en)
FR (1) FR2906642B1 (en)

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FR2683383B1 (en) * 1991-11-04 1993-12-31 Gec Alsthom Sa HIGH OR MEDIUM VOLTAGE CIRCUIT BREAKER WITH TRIPLE MOTION.
FR2738389B1 (en) * 1995-08-31 1997-10-24 Schneider Electric Sa HIGH VOLTAGE HYDRAULIC CIRCUIT BREAKER
FR2745947B1 (en) * 1996-03-11 1998-04-10 Gec Alsthom T & D Sa REDUCED SELF-PRESSURE CIRCUIT BREAKER
DE19622460C2 (en) 1996-05-24 1998-04-02 Siemens Ag High-voltage circuit breaker with two drivable switch contact pieces
DE19631323C1 (en) 1996-08-01 1997-10-16 Aeg Energietechnik Gmbh Pressure gas switch e.g. for outdoor switching stations with porcelain insulators
FR2763171B1 (en) * 1997-05-07 1999-07-09 Gec Alsthom T & D Sa CIRCUIT BREAKER
FR2763422B1 (en) * 1997-05-15 1999-07-09 Gec Alsthom T & D Sa GENERATOR CIRCUIT BREAKER
FR2770678B1 (en) * 1997-10-30 1999-12-31 Gec Alsthom T & D Sa GENERATOR CIRCUIT BREAKER WITH SINGLE MECHANICAL CONTROL
FR2774503B1 (en) * 1998-02-02 2000-04-07 Gec Alsthom T & D Sa MEDIUM OR HIGH VOLTAGE CIRCUIT BREAKER HAVING A TRANSMISSION BELT CLOSED AROUND TWO PINIONS
DE19907838A1 (en) * 1999-02-24 2000-08-31 Alstom Energietechnik Gmbh Gas pressure switch
DE10006167B4 (en) * 2000-02-11 2009-07-23 Abb Schweiz Ag breakers
DE10016950A1 (en) 2000-04-05 2001-10-11 Abb Hochspannungstechnik Ag Zu Procedure for switching off a short-circuit current in the area close to the generator
FR2817389B1 (en) * 2000-11-30 2003-01-03 Schneider Electric High Voltag HIGH VOLTAGE ELECTRICAL CUTTING EQUIPMENT WITH DOUBLE MOVEMENT
FR2868199B1 (en) * 2004-03-25 2006-05-19 Areva T & D Sa HIGH VOLTAGE HYBRID CIRCUIT BREAKER.
FR2877136B1 (en) * 2004-10-27 2006-12-15 Areva T & D Sa TRAINING CINEMATICS IN A HYBRID CIRCUIT BREAKER

Also Published As

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DE602007001427D1 (en) 2009-08-13
CN101170033A (en) 2008-04-30
EP1906425A1 (en) 2008-04-02
US20080078668A1 (en) 2008-04-03
FR2906642A1 (en) 2008-04-04
ATE435498T1 (en) 2009-07-15
CA2603158A1 (en) 2008-03-29
US7777149B2 (en) 2010-08-17
CA2603158C (en) 2014-10-21
CN101170033B (en) 2012-07-04
FR2906642B1 (en) 2008-12-19

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