EP2948971B1 - Electrical apparatus with dual movement of contacts comprising a return device with two levers - Google Patents

Electrical apparatus with dual movement of contacts comprising a return device with two levers Download PDF

Info

Publication number
EP2948971B1
EP2948971B1 EP14701060.7A EP14701060A EP2948971B1 EP 2948971 B1 EP2948971 B1 EP 2948971B1 EP 14701060 A EP14701060 A EP 14701060A EP 2948971 B1 EP2948971 B1 EP 2948971B1
Authority
EP
European Patent Office
Prior art keywords
movable contact
lever
switchgear
main
main movable
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.)
Active
Application number
EP14701060.7A
Other languages
German (de)
French (fr)
Other versions
EP2948971A1 (en
Inventor
Joël Ozil
Ludovic DARLES
Benjamin CODA
Cyril Gregoire
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
General Electric Technology GmbH
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 General Electric Technology GmbH filed Critical General Electric Technology GmbH
Publication of EP2948971A1 publication Critical patent/EP2948971A1/en
Application granted granted Critical
Publication of EP2948971B1 publication Critical patent/EP2948971B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • 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

Definitions

  • the invention relates to an electric power line transmission switchgear, such as a high or medium voltage switch or disconnector with double contact movement, comprising a main movable contact and a secondary movable contact, as well as a switch mechanism. connecting the two movable contacts for driving the secondary movable contact by the main movable contact.
  • an electric power line transmission switchgear such as a high or medium voltage switch or disconnector with double contact movement
  • the invention more particularly relates to a circuit breaker or disconnector for which the drive of the secondary movable contact is optimized to limit the stroke and optimize the acceleration of the secondary movable contact during an opening phase of the apparatus.
  • a circuit breaker with double contact movement has two contacts that are able to move relative to one another and with respect to a fixed structure, during a circuit opening or closing phase.
  • one of the two movable contacts is driven by a drive mechanism, and it drives the other moving contact, commonly called secondary mobile contact, via a return mechanism.
  • This return mechanism is generally designed so that the displacement of the secondary movable contact is simultaneous and opposite to the displacement of the main movable contact.
  • EP-A-1933348 and EP-A-0809269 each describe a dual-contact disconnector which comprises a system comprising two connecting rods and a central return member through which the main movable contact drives the secondary movable contact.
  • the main movable contact and the secondary movable contact move simultaneously in opposite directions.
  • the drive mechanism of the moving contact must therefore be capable of producing sufficient energy to move the two moving contacts simultaneously. This energy is therefore relatively important at the beginning of the opening phase of the disconnector.
  • the drive mechanism provides an energy that allows the moving contacts to quickly reach a sufficiently high speed for breaking an electric arc formed between the two movable contacts.
  • the dimensions of the components of the drive mechanism, the movable contacts and the return mechanism are relatively large to withstand the forces involved when opening or closing the disconnector.
  • the document EP-B-0992050 describes a system for connecting the main movable contact with the secondary movable contact comprising a traction rod secured to the main movable contact, a pivoting lever and a connecting piece fixed to the secondary movable contact.
  • a leg of the lever is fork-shaped and is adapted to cooperate with a finger carried by the pull rod.
  • the other leg of the lever carries a finger that cooperates with a notch of the connecting piece.
  • DE-C1-10003357 describes an electric power line transmission apparatus according to the preamble of claim 1.
  • the object of the invention is to propose an electrical equipment such as a disconnector for which the means for connecting the movable contacts the one with the other allow to limit the drive forces of the moving contacts, while allowing to have a relative speed of a movable contact relative to the other which is maximum when the contact between the moving contacts is about to break.
  • the invention proposes an electric power line transmission apparatus comprising a main movable contact and a secondary movable contact, each of which is able to move relative to a fixed frame of the apparatus along the main axis of the apparatus between a closed position of the apparatus and an open position of the apparatus, wherein the main movable contact is connected to the secondary movable contact via a return mechanism which converts the movement of the main movable contact in one direction in a displacement of the secondary movable contact in the opposite direction to the direction of movement of the main movable contact, characterized in that the return mechanism comprises two levers connected to one another in series which are pivotally mounted relative to the fixed frame about respective parallel pivot axes, each lever of which is connected to the main movable contact or the secondary mobile contact on the one hand and the other lever on the other hand.
  • the driving of the secondary movable contact via a two-lever return mechanism connected in series makes it possible to optimize the travel and the speed of displacement of the secondary movable contact as a function of the position of the main movable contact when an opening phase of the equipment.
  • the return mechanism is made in such a way that during the movement of the main movable contact between a first position corresponding to the closing position of the apparatus and an intermediate position, the return mechanism does not transform the displacement of the main movable contact into a displacement of the secondary movable contact and during the displacement of the main movable contact between said intermediate position and a third position corresponding to the open position of the apparatus, the return mechanism transforms the displacement of the main movable contact into a displacement of the secondary movable contact.
  • a first lever of the return mechanism comprises a first branch which is connected to the main movable contact and a second branch which is connected to a second lever of the return mechanism
  • the second lever comprises a first branch which is connected to the second branch of the first lever and a second branch which is connected to the secondary movable contact.
  • the first branch of the second lever comprises a groove in which a follower finger integral with the second branch of the first lever is able to move during the pivoting of the first lever.
  • the groove comprises a first portion which is in the shape of a circular arc centered on the axis of pivoting of the first lever relative to the frame when the second lever is in its closed position of the apparatus.
  • the follower finger moves in the first portion of the groove while the main moving contact moves between said first position and said intermediate position.
  • the groove comprises a second portion in which the follower finger moves while the main movable contact moves between said intermediate position and said third position, to allow the first lever to drive the second lever in rotation about its axis pivoting.
  • the shape of the second portion of the groove is defined such that as the main movable contact moves from said intermediate position to said third position, the pivoting speed of the second lever increases progressively.
  • the shape of the second portion of the groove is defined so that while the main movable contact moves from said intermediate position to said third position, the pivoting speed of the second lever gradually increases and then gradually decreases.
  • the speed of the main contact is greater than the speed of the secondary movable contact while the main movable contact moves from said intermediate position to said third position.
  • the speed of the main contact is less than or equal to the speed of the secondary movable contact and is greater than the speed of the secondary movable contact while the main moving contact moves from said intermediate position to said third position.
  • figure 1 electrical equipment 10 such as for example a breaking chamber of a circuit breaker of medium or high voltage electric power transmission line.
  • the interrupting chamber 10 comprises a fixed frame 12 of cylindrical main shape and main axis A oriented here longitudinally.
  • the breaking chamber 10 also comprises, arranged inside the frame 12, a main movable contact 14 and a secondary movable contact 16 arranged coaxially with the frame 12.
  • the main movable contact and the secondary movable contact 16 are mounted movable relative to the frame 12 sliding axially along the main axis A of the frame 12.
  • the secondary mobile contact 16 consists of an axial rod whose axial end 16a is adapted to be received in a contact portion 18 of the main movable contact 14.
  • Each movable contact 14, 16 is electrically connected to an electrical conductor and the movable contacts 14, 16 are able to move axially in the frame 12 between a closed position shown in FIG. figure 1 in which the movable contacts 14, 16 are in contact with each other, to allow the flow of an electric current through the breaking chamber 10, and an open position shown in FIG. 3D figure wherein the movable contacts 14, 16 are located at a distance from each other, preventing any movement of electric current through the breaking chamber 10.
  • the displacement of the movable contacts 14, 16 is achieved by means of drive means (not shown) which are connected to the main movable contact 14 and via a return mechanism 20 which connects the main movable contact 14 to the secondary mobile contact 16.
  • the return mechanism 20 makes it possible to transmit the drive forces originating from the drive means to the secondary mobile contact 16, via the main movable contact 14.
  • the return mechanism 20 is also designed to transform the displacement of the main movable contact 14 in a first direction into a displacement of the secondary movable contact 16 in a direction opposite to the main movable contact 14.
  • the main movable contact 14 is driven axially in a first direction, which is here to the left with reference to the figures, and the secondary movable contact 16 is driven axially in a second direction opposite the first direction, that is to say here to the right.
  • the return mechanism 20 comprises two levers 22, 24 connected to one another in series, which are pivotally mounted relative to the frame 12 about parallel transverse axes B, C associated and two connecting rods 26, 28 connecting the levers 22, 24 to the movable contacts 14, 16.
  • a first link 26 connects the main movable contact 14 to a first lever 22 and the second link 28 connects the second lever 24 to the secondary movable contact 16.
  • the first lever 22 consists of two branches 30, 32 interconnected at the pivot axis B of the first lever 22.
  • the first lever 22 thus comprises a first leg 30 whose free end 30a is connected to the movable contact main via the first rod 26 and has a second leg 32 whose free end 32a is connected to the second lever 24.
  • the second lever 24 is also constituted by two branches 34, 36 interconnected at the pivot axis C of the second lever 24.
  • the second lever 24 thus comprises a first branch 34 which is connected to the second branch 32 of the first lever 22 and comprises a second branch 36 whose free end 36a is connected to the secondary movable contact 16 via the second connecting rod 28.
  • the first leg 34 of the second lever 24 has a groove 38 in which a follower pin 40 carried by the second leg 32 of the first lever 22 is able to move.
  • the shape of the groove 38 is defined so that during an opening phase of the breaking chamber 10, in a first phase of this opening phase, the main movable contact 14 moves along the longitudinal main axis A and the secondary movable contact 16 remains stationary then, in a second and a third time of the opening phase, the main movable contact 14 drives the secondary movable contact 16 moving along the main axis A longitudinal.
  • the shape of the groove 38 is defined so that the main movable contact 14 drives the secondary movable contact 16 when the main movable contact 14 is located between its open position of the breaking chamber and an intermediate position located between the position opening and closing position of the interrupting chamber 10.
  • the groove 38 comprises a first portion 42 which is in the shape of a circular arc centered on the pivoting axis B of the first lever 22 when the second lever 24 is in its closed position of the apparatus.
  • This first portion 42 of the groove 38 is the radially outer portion of the groove 38, relative to the pivot axis C of the second lever 24.
  • the groove 38 has a second portion 44 which is formed in the extension of the first portion 42, and whose shape is defined so that when the follower pin 40 moves in this second portion 44 of the groove 38, it relies on one of the walls of the throat 38.
  • the second lever 24 is then pivoted by the first lever 22 and consequently causes the secondary movable contact 16 to move relative to the frame 12.
  • the second portion 44 of the groove 38 is generally rectilinear and is radial with respect to the pivot axis C of the second lever. It will be understood that the invention is not limited to this form of the second portion 44, which can also be curved without departing from the scope of the invention.
  • Figures 3A to 3D different successive actuating positions of the breaking chamber 10 according to the invention, during an opening phase of the breaking chamber 10.
  • the interrupting chamber 10 is shown in its initial closed position in which the movable contacts 14, 16 are electrically connected and in which each of the movable contacts 14, 16 is in an initial closed position, allowing the circulation of an electric current. through the breaking chamber 10.
  • the main movable contact 14 is driven continuously by the drive means in axial displacement along the main axis A of the interrupting chamber, here to the left, from its initial position. closure shown in figure 3A up to its final opening position of the breaking chamber shown in FIG. 3D figure .
  • the main movable contact 14 drives the first lever 22 pivotally about its pivoting axis B, via the first link 26.
  • the follower finger 40 then describes a trajectory in the shape of a circular arc centered on the pivoting axis B of the first lever 22.
  • the follower finger 40 moves in the first portion 42 of the throat 38.
  • the second lever is in a position corresponding to the initial position of closure of the secondary movable contact 16.
  • the center of the arc formed by the first portion 42 of the groove 38 is centered on the pivot axis B of the first lever 22.
  • the second lever 24 is not pivotally driven about its pivot axis C by the first lever 22, the secondary movable contact 16 therefore remains motionless in its initial position of closing the breaking chamber. Therefore, during this first phase of the opening phase, only the main movable contact 14 has moved axially.
  • the main movable contact 14 In a second stage of the opening phase, corresponding to the transition from the state represented to the figure 3B in the state shown in figure 3C , the main movable contact 14 continues its axial displacement, crossing the intermediate position described above. The main movable contact 14 thus drives the first lever 22 and therefore the follower pin 40 pivoting about the pivot axis B of the first lever.
  • the shape of the second portion 44 of the groove 38 and the arc-shaped trajectory of the follower pin 40 have the consequence that the follower pin 40 rests on a wall of the second portion 44 of the groove 38, causing therefore the second lever 24 pivoting about its axis C in a direction opposite to the direction of rotation of the first lever 22 pivoting about its axis B.
  • the second lever 24 is rotated clockwise.
  • the second lever 24 By pivoting, the second lever 24 causes the secondary movable contact 16 to slide relative to the frame 12 in a direction opposite to the sliding of the main movable contact 14, that is to say here to the right with reference to the figures.
  • the speed of displacement of the secondary movable contact 16 also increases gradually during the second stage of the opening phase.
  • the two movable contacts 14, 16 move simultaneously and in opposite directions. Also, at least the speed of displacement of the secondary movable contact 16 increases gradually.
  • the races of the movable contacts 14, 16 are defined so that the electrical connection between the movable contacts 14, 16 is broken when the relative speed between the two movable contacts 14, 16 becomes the largest, or at any other position before or during the acceleration phase of the secondary mobile contact 16.
  • the movable contacts are separated and the follower pin 40 is located between the two pivot axes B, C of the levers.
  • the follower pin 40 is at its position closest to the pivot axis C of the second lever 24.
  • the follower pin 40 moves in the groove 38 progressively away from the pivot axis C of the second lever, the pivoting speed of the second lever 24 then decreases gradually.
  • the secondary movable contact 16 slows progressively with respect to its maximum displacement speed.
  • the drive means of the main movable contact 14 are stopped, the main movable contact 14 is therefore stopped, as well as that the secondary mobile contact 16.
  • the secondary movable contact 16 Since the secondary movable contact 16 progressively slows down during this third stage of the opening phase, its kinetic energy is reduced, the energy required for the stop of the secondary movable contact 16 is therefore reduced as well.
  • the main movable contact 14 drives the secondary movable contact 16 when the main movable contact 14 is in an axial position located between the open position of the breaking chamber 10 and the intermediate position shown in FIG. figure 3B . Also, the main movable contact 14 does not cause the secondary mobile contact 16 when the moving contact 14 is in an axial position between the closed position of the breaking chamber 10 and the intermediate position shown in FIG. figure 3B .
  • figure 4 a graph showing the displacement, or the stroke of each movable contact 14, 16 relative to the frame 12, during the opening phase, for an exemplary embodiment of the invention.
  • a first curve 50 of this graph is rectilinear and represents the stroke of the main movable contact 14 relative to the frame.
  • the second curve 52 is non-rectilinear, represents the stroke of the secondary movable contact 16 relative to the frame 12.
  • a third curve 66 represents the relative distance between the two movable contacts 14, 16.
  • Each curve 50, 52 comprises a first portion 54, 56 corresponding to the displacement of the movable contact 14, 16 associated during the first time of the opening phase, that is to say up to a time T1.
  • Each curve 50, 52 also includes a second portion 58, 60 corresponding to the displacement of the moving contact 14, 16 associated during the second time the opening phase, that is to say from the moment T1 until a time T2.
  • the main movable contact 14 drives the secondary movable contact 16 and the speed of displacement of the secondary movable contact 16 increases progressively.
  • Each curve 50, 52 thus comprises a third portion 62, 64 corresponding to the displacement of the moving contact 14, 16 associated during the third time of the opening phase, that is to say from the instant T2 to a moment T4.
  • the third portion 64 of the curve 52 associated with the secondary movable contact 16 is concave and open upwards, and the curve 52 has a point of inflection at the moment corresponding to the instant T2.
  • the dimensions of the levers 22, 24 are defined so that the speed of the main contact 14 is greater than the speed of the secondary movable contact 16 during the second time of the opening phase, and when third time of the opening phase.
  • the dimensions of the levers 22, 24 are defined so that the speed of the main contact 14 is less than or equal to the speed of the secondary movable contact 16 during the second phase of the phase of opening, and that, during the third time of the opening phase, the speed of the main movable contact 14 is greater than the speed of the secondary movable contact 16 during the third time of the opening phase.
  • the closing of the breaking chamber 10 is carried out in a reverse movement to that just described, that is to say by passing from the state shown in FIG. 3D figure in the state shown in figure 3A .
  • the driving means cause the main movable contact 14 to move along the axis A of the frame 12 so that it approaches the secondary movable contact 16.
  • the secondary movable contact 16 is driven by the main movable contact 14 by through the return mechanism 20, moving in the opposite direction of the main movable contact 14, that is to say that the movable contacts 14, 16 come closer to each other, and then come into electrical contact.
  • the interrupting chamber 10 is then closed.
  • the movable contacts 14, 16 move beyond this contact position to the relative position corresponding to the state shown in FIG. figure 3B , in which the secondary movable contact 16 is in its closed position of the breaking chamber 10.
  • the second lever 24 is in its angular position with respect to its axis C of pivoting for which the arc formed by the first portion 42 of the groove 38 is centered on the pivot axis B of the first lever 22. Also, in this state, the follower finger 40 reaches the first portion 42 of the groove 38.
  • the follower pin 40 moves in the first portion 42 of the groove 38, the second lever 24 is not then pivotally driven by the first lever 22.
  • the secondary mobile contact 16 therefore remains motionless.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Description

DOMAINE TECHNIQUETECHNICAL AREA

L'invention concerne un appareillage électrique de ligne de transport de courant électrique, tel qu'un sectionneur ou un disjoncteur haute ou moyenne tension à double mouvement de contacts, comportant un contact mobile principal et un contact mobile secondaire, ainsi qu'un mécanisme de liaison des deux contacts mobiles permettant un entraînement du contact mobile secondaire par le contact mobile principal.The invention relates to an electric power line transmission switchgear, such as a high or medium voltage switch or disconnector with double contact movement, comprising a main movable contact and a secondary movable contact, as well as a switch mechanism. connecting the two movable contacts for driving the secondary movable contact by the main movable contact.

L'invention concerne plus particulièrement un disjoncteur ou un sectionneur pour lequel l'entraînement du contact mobile secondaire est optimisé pour limiter la course et optimiser l'accélération du contact mobile secondaire au cours d'une phase d'ouverture de l'appareillage.The invention more particularly relates to a circuit breaker or disconnector for which the drive of the secondary movable contact is optimized to limit the stroke and optimize the acceleration of the secondary movable contact during an opening phase of the apparatus.

ÉTAT DE LA TECHNIQUE ANTÉRIEURESTATE OF THE PRIOR ART

Un disjoncteur à double mouvement de contacts comporte deux contacts qui sont aptes à se déplacer l'un par rapport à l'autre et par rapport à une structure fixe, lors d'une phase d'ouverture ou de fermeture du disjoncteur.A circuit breaker with double contact movement has two contacts that are able to move relative to one another and with respect to a fixed structure, during a circuit opening or closing phase.

De manière générale, l'un des deux contacts mobiles, communément appelé contact mobile principal, est entraîné par un mécanisme d'entraînement, et il entraîne l'autre contact mobile, communément appelé contact mobile secondaire, par l'intermédiaire d'un mécanisme de renvoi.In general, one of the two movable contacts, commonly called the main movable contact, is driven by a drive mechanism, and it drives the other moving contact, commonly called secondary mobile contact, via a return mechanism.

Ce mécanisme de renvoi est généralement conçu pour que le déplacement du contact mobile secondaire soit simultané et opposé au déplacement du contact mobile principal.This return mechanism is generally designed so that the displacement of the secondary movable contact is simultaneous and opposite to the displacement of the main movable contact.

Les documents EP-A-1.933.348 et EP-A-0.809.269 décrivent chacun un sectionneur à double mouvement de contacts qui comporte un système comportant deux bielles et un organe de renvoi central par l'intermédiaire duquel le contact mobile principal entraîne le contact mobile secondaire.The documents EP-A-1933348 and EP-A-0809269 each describe a dual-contact disconnector which comprises a system comprising two connecting rods and a central return member through which the main movable contact drives the secondary movable contact.

Lors de l'ouverture du sectionneur, le contact mobile principal et le contact mobile secondaire se déplacent simultanément en sens opposés.When opening the disconnector, the main movable contact and the secondary movable contact move simultaneously in opposite directions.

Le mécanisme d'entraînement du contact mobile doit donc être capable de produire une énergie suffisamment importante pour mettre en mouvement les deux contacts mobiles simultanément. Cette énergie est donc relativement importante au début de la phase d'ouverture du sectionneur.The drive mechanism of the moving contact must therefore be capable of producing sufficient energy to move the two moving contacts simultaneously. This energy is therefore relatively important at the beginning of the opening phase of the disconnector.

De plus, le mécanisme d'entraînement fournit une énergie qui permet aux contacts mobiles d'atteindre rapidement une vitesse suffisamment importante pour la rupture d'un arc électrique se formant entre les deux contacts mobiles.In addition, the drive mechanism provides an energy that allows the moving contacts to quickly reach a sufficiently high speed for breaking an electric arc formed between the two movable contacts.

Ainsi, les dimensions des composants du mécanisme d'entraînement, des contacts mobiles et du mécanisme de renvoi sont relativement importantes pour pouvoir résister aux efforts mis en jeu lors de l'ouverture ou de la fermeture du sectionneur.Thus, the dimensions of the components of the drive mechanism, the movable contacts and the return mechanism are relatively large to withstand the forces involved when opening or closing the disconnector.

Le document EP-B-0.992.050 décrit un système de liaison du contact mobile principal avec le contact mobile secondaire comportant une tige de traction solidaire du contact mobile principal, un levier pivotant et une pièce de liaison fixée au contact mobile secondaire.The document EP-B-0992050 describes a system for connecting the main movable contact with the secondary movable contact comprising a traction rod secured to the main movable contact, a pivoting lever and a connecting piece fixed to the secondary movable contact.

Une branche du levier est en forme de fourche et est apte à coopérer avec un doigt porté par la tige de traction. L'autre branche du levier porte un doigt qui coopère avec une encoche de la pièce de liaison.A leg of the lever is fork-shaped and is adapted to cooperate with a finger carried by the pull rod. The other leg of the lever carries a finger that cooperates with a notch of the connecting piece.

La coopération du doigt porté par la tige de traction avec la fourche du levier permet au contact mobile secondaire de rester immobile dans un premier temps de l'étape d'ouverture puis d'être entraîné par le contact mobile principal dans un deuxième temps de l'étape d'ouverture. Ainsi, l'énergie nécessaire à la mise en mouvement des contacts mobiles est répartie dans le temps.The cooperation of the finger carried by the traction rod with the fork of the lever allows the secondary movable contact to remain stationary in a first step of the opening step and then to be driven by the main movable contact in a second step of the 'opening step. Thus, the energy required for moving mobile contacts is distributed over time.

Cependant, l'accélération de chaque contact mobile est continue, les vitesses des contacts mobiles sont les plus élevées à des positions différentes de celles pour lesquelles l'arc électrique entre les contacts mobiles doit être rompu.However, the acceleration of each moving contact is continuous, the speeds of the moving contacts are highest at different positions from those for which the electric arc between the movable contacts must be broken.

DE-C1-10003357 décrit un appareillage électrique de ligne de transport de courant électrique d'après le préambule de la revendication 1. L'invention a pour but de proposer un appareillage électrique tel qu'un sectionneur pour lequel les moyens de liaison des contacts mobiles l'un avec l'autre permettent de limiter les efforts d'entraînement des contacts mobiles, tout en permettant d'avoir une vitesse relative d'un contact mobile par rapport à l'autre qui est maximale lorsque le contact entre les contacts mobiles est sur le point de se rompre. DE-C1-10003357 describes an electric power line transmission apparatus according to the preamble of claim 1. The object of the invention is to propose an electrical equipment such as a disconnector for which the means for connecting the movable contacts the one with the other allow to limit the drive forces of the moving contacts, while allowing to have a relative speed of a movable contact relative to the other which is maximum when the contact between the moving contacts is about to break.

EXPOSÉ DE L'INVENTIONSTATEMENT OF THE INVENTION

L'invention propose un appareillage électrique de ligne de transport de courant électrique comportant un contact mobile principal et un contact mobile secondaire, dont chacun est apte à se déplacer par rapport à un bâti fixe de l'appareillage le long de l'axe principal de l'appareillage entre une position de fermeture de l'appareillage et une position d'ouverture de l'appareillage, dans lequel le contact mobile principal est relié au contact mobile secondaire par l'intermédiaire d'un mécanisme de renvoi qui transforme le déplacement du contact mobile principal dans un sens en un déplacement du contact mobile secondaire en sens opposé au sens de déplacement du contact mobile principal,
caractérisé en ce que le mécanisme de renvoi comporte deux leviers reliés l'un à l'autre en série qui sont montés pivotants par rapport au bâti fixe autour d'axes de pivotement respectifs parallèles, dont chaque levier est relié au contact mobile principal ou au contact mobile secondaire d'une part et à l'autre levier d'autre part.The invention proposes an electric power line transmission apparatus comprising a main movable contact and a secondary movable contact, each of which is able to move relative to a fixed frame of the apparatus along the main axis of the apparatus between a closed position of the apparatus and an open position of the apparatus, wherein the main movable contact is connected to the secondary movable contact via a return mechanism which converts the movement of the main movable contact in one direction in a displacement of the secondary movable contact in the opposite direction to the direction of movement of the main movable contact,
characterized in that the return mechanism comprises two levers connected to one another in series which are pivotally mounted relative to the fixed frame about respective parallel pivot axes, each lever of which is connected to the main movable contact or the secondary mobile contact on the one hand and the other lever on the other hand.

L'entraînement du contact mobile secondaire par l'intermédiaire d'un mécanisme de renvoi à deux leviers montés en série permet d'optimiser la course et la vitesse de déplacement du contact mobile secondaire en fonction de la position du contact mobile principal lors d'une phase d'ouverture de l'appareillage.The driving of the secondary movable contact via a two-lever return mechanism connected in series makes it possible to optimize the travel and the speed of displacement of the secondary movable contact as a function of the position of the main movable contact when an opening phase of the equipment.

De préférence, le mécanisme de renvoi est réalisé de manière telle que lors du déplacement du contact mobile principal entre une première position correspondant à la position de fermeture de l'appareillage et une position intermédiaire, le mécanisme de renvoi ne transforme pas le déplacement du contact mobile principal en un déplacement du contact mobile secondaire et lors du déplacement du contact mobile principal entre ladite position intermédiaire et une troisième position correspondant à la position d'ouverture de l'appareillage, le mécanisme de renvoi transforme le déplacement du contact mobile principal en un déplacement du contact mobile secondaire.Preferably, the return mechanism is made in such a way that during the movement of the main movable contact between a first position corresponding to the closing position of the apparatus and an intermediate position, the return mechanism does not transform the displacement of the main movable contact into a displacement of the secondary movable contact and during the displacement of the main movable contact between said intermediate position and a third position corresponding to the open position of the apparatus, the return mechanism transforms the displacement of the main movable contact into a displacement of the secondary movable contact.

De préférence, un premier levier du mécanisme de renvoi comporte une première branche qui est reliée au contact mobile principal et une deuxième branche qui est reliée à un deuxième levier du mécanisme de renvoi, et le deuxième levier comporte une première branche qui est reliée à la deuxième branche du premier levier et une deuxième branche qui est reliée au contact mobile secondaire.Preferably, a first lever of the return mechanism comprises a first branch which is connected to the main movable contact and a second branch which is connected to a second lever of the return mechanism, and the second lever comprises a first branch which is connected to the second branch of the first lever and a second branch which is connected to the secondary movable contact.

De préférence, la première branche du deuxième levier comporte une gorge dans laquelle un doigt suiveur solidaire de la deuxième branche du premier levier est apte à se déplacer lors du pivotement du premier levier.Preferably, the first branch of the second lever comprises a groove in which a follower finger integral with the second branch of the first lever is able to move during the pivoting of the first lever.

De préférence, la gorge comporte une première portion qui est en forme d'arc de cercle centré sur l'axe de pivotement du premier levier par rapport au bâti lorsque le deuxième levier est dans sa position de fermeture de l'appareillage.Preferably, the groove comprises a first portion which is in the shape of a circular arc centered on the axis of pivoting of the first lever relative to the frame when the second lever is in its closed position of the apparatus.

De préférence, le doigt suiveur se déplace dans la première portion de la gorge pendant que le contact mobile principal se déplace entre ladite première position et ladite position intermédiaire.Preferably, the follower finger moves in the first portion of the groove while the main moving contact moves between said first position and said intermediate position.

De préférence, la gorge comporte une deuxième portion dans laquelle le doigt suiveur se déplace pendant que le contact mobile principal se déplace entre ladite position intermédiaire et ladite troisième position, pour permettre au premier levier d'entraîner le deuxième levier en rotation autour de son axe de pivotement.Preferably, the groove comprises a second portion in which the follower finger moves while the main movable contact moves between said intermediate position and said third position, to allow the first lever to drive the second lever in rotation about its axis pivoting.

De préférence, la forme de la deuxième portion de la gorge est définie de manière telle que pendant que le contact mobile principal se déplace depuis ladite position intermédiaire vers ladite troisième position, la vitesse de pivotement du deuxième levier augmente progressivement.Preferably, the shape of the second portion of the groove is defined such that as the main movable contact moves from said intermediate position to said third position, the pivoting speed of the second lever increases progressively.

De préférence, la forme de la deuxième portion de la gorge est définie de manière telle que pendant que le contact mobile principal se déplace depuis ladite position intermédiaire vers ladite troisième position, la vitesse de pivotement du deuxième levier augmente progressivement puis diminue progressivement.Preferably, the shape of the second portion of the groove is defined so that while the main movable contact moves from said intermediate position to said third position, the pivoting speed of the second lever gradually increases and then gradually decreases.

De préférence, la vitesse du contact principal est supérieure à la vitesse du contact mobile secondaire pendant que le contact mobile principal se déplace depuis ladite position intermédiaire vers ladite troisième position.Preferably, the speed of the main contact is greater than the speed of the secondary movable contact while the main movable contact moves from said intermediate position to said third position.

De préférence, la vitesse du contact principal est inférieure ou égale à la vitesse du contact mobile secondaire puis est supérieure à la vitesse du contact mobile secondaire pendant que le contact mobile principal se déplace depuis ladite position intermédiaire vers ladite troisième position.Preferably, the speed of the main contact is less than or equal to the speed of the secondary movable contact and is greater than the speed of the secondary movable contact while the main moving contact moves from said intermediate position to said third position.

BRÈVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels :

  • la figure 1 est une représentation schématique en perspective d'une chambre de coupure d'un appareillage électrique réalisée selon les enseignements de l'invention ;
  • les figures 2A et 2B sont des détails à plus grande échelle du mécanisme de renvoi représenté à la figure 1 ;
  • les figures 3A à 3D sont des vues en plan montrant des états successifs de la chambre de coupure lors d'une phase d'ouverture de l'appareillage ;
  • la figure 4 est un graphique représentant le déplacement de chaque contact mobile par rapport au bâti de l'appareillage lors d'une phase d'ouverture de l'appareillage selon un exemple de réalisation de l'invention.
Other characteristics and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which:
  • the figure 1 is a schematic representation in perspective of a breaking chamber of an electrical apparatus made according to the teachings of the invention;
  • the Figures 2A and 2B details on a larger scale of the referral mechanism represented in figure 1 ;
  • the Figures 3A to 3D are plan views showing successive states of the interrupting chamber during an opening phase of the apparatus;
  • the figure 4 is a graph showing the displacement of each movable contact relative to the frame of the apparatus during an opening phase of the apparatus according to an exemplary embodiment of the invention.

EXPOSÉ DÉTAILLÉ DE MODES DE RÉALISATION PARTICULIERSDETAILED PRESENTATION OF PARTICULAR EMBODIMENTS

Pour la description de l'invention, on adoptera à titre non limitatif les orientations longitudinale, verticale et transversale selon le repère L, V, T indiqué à la figure 1.For the description of the invention, the longitudinal, vertical and transverse orientations will be adopted in a nonlimiting manner according to the reference L, V, T indicated in FIG. figure 1 .

On a représenté à la figure 1 un appareillage électrique 10 tel que par exemple une chambre de coupure d'un disjoncteur de ligne de transport de courant électrique à moyenne ou haute tension.We have shown figure 1 electrical equipment 10 such as for example a breaking chamber of a circuit breaker of medium or high voltage electric power transmission line.

La chambre de coupure 10 comporte un bâti fixe 12 de forme principale cylindrique et d'axe principal A orienté ici longitudinalement.The interrupting chamber 10 comprises a fixed frame 12 of cylindrical main shape and main axis A oriented here longitudinally.

La chambre de coupure 10 comporte aussi, agencés à l'intérieur du bâti 12, un contact mobile principal 14 et un contact mobile secondaire 16 agencés coaxialement au bâti 12. Le contact mobile principal et le contact mobile secondaire 16 sont montés mobiles par rapport au bâti 12 en coulissement axialement le long de l'axe principal A du bâti 12.The breaking chamber 10 also comprises, arranged inside the frame 12, a main movable contact 14 and a secondary movable contact 16 arranged coaxially with the frame 12. The main movable contact and the secondary movable contact 16 are mounted movable relative to the frame 12 sliding axially along the main axis A of the frame 12.

Ici, le contact mobile secondaire 16 consiste en une tige axiale dont une extrémité axiale 16a est apte à être reçue dans une portion de contact 18 du contact mobile principal 14.Here, the secondary mobile contact 16 consists of an axial rod whose axial end 16a is adapted to be received in a contact portion 18 of the main movable contact 14.

Chaque contact mobile 14, 16 est raccordé électriquement à un conducteur électrique et les contacts mobiles 14, 16 sont aptes à se déplacer axialement dans le bâti 12 entre une position de fermeture représentée à la figure 1, dans laquelle les contacts mobiles 14, 16 sont en contact l'un avec l'autre, pour permettre la circulation d'un courant électrique au travers de la chambre de coupure 10, et une position d'ouverture représentée à la figure 3D dans laquelle les contacts mobiles 14, 16 sont situés à distance l'un de l'autre, empêchant toute circulation de courant électrique au travers de la chambre de coupure 10.Each movable contact 14, 16 is electrically connected to an electrical conductor and the movable contacts 14, 16 are able to move axially in the frame 12 between a closed position shown in FIG. figure 1 in which the movable contacts 14, 16 are in contact with each other, to allow the flow of an electric current through the breaking chamber 10, and an open position shown in FIG. 3D figure wherein the movable contacts 14, 16 are located at a distance from each other, preventing any movement of electric current through the breaking chamber 10.

Le déplacement des contacts mobiles 14, 16 est réalisé par l'intermédiaire de moyens d'entraînement (non représentés) qui sont reliés au contact mobile principal 14 et par l'intermédiaire d'un mécanisme de renvoi 20 qui relie le contact mobile principal 14 au contact mobile secondaire 16.The displacement of the movable contacts 14, 16 is achieved by means of drive means (not shown) which are connected to the main movable contact 14 and via a return mechanism 20 which connects the main movable contact 14 to the secondary mobile contact 16.

Le mécanisme de renvoi 20 permet de transmettre les efforts d'entraînement provenant des moyens d'entraînement vers le contact mobile secondaire 16, par l'intermédiaire du contact mobile principal 14.The return mechanism 20 makes it possible to transmit the drive forces originating from the drive means to the secondary mobile contact 16, via the main movable contact 14.

Le mécanisme de renvoi 20 est aussi conçu pour transformer le déplacement du contact mobile principal 14 dans un premier sens en un déplacement du contact mobile secondaire 16 dans un sens opposé par rapport au contact mobile principal 14.The return mechanism 20 is also designed to transform the displacement of the main movable contact 14 in a first direction into a displacement of the secondary movable contact 16 in a direction opposite to the main movable contact 14.

Comme on peut le voir aux figures 3A à 3D, lors d'une phase d'ouverture de la chambre de coupure 10, le contact mobile principal 14 est entraîné en déplacement axialement dans un premier sens, qui est ici vers la gauche en se référant aux figures, et le contact mobile secondaire 16 est entraîné en déplacement axialement dans un deuxième sens opposé au premier sens, c'est-à-dire ici vers la droite.As can be seen at Figures 3A to 3D during an opening phase of the breaking chamber 10, the main movable contact 14 is driven axially in a first direction, which is here to the left with reference to the figures, and the secondary movable contact 16 is driven axially in a second direction opposite the first direction, that is to say here to the right.

Comme on peut le voir plus en détails aux figures 2A et 2B, le mécanisme de renvoi 20 comporte deux leviers 22, 24 reliés l'un à l'autre en série, qui sont montés pivotants par rapport au bâti 12 autour d'axes transversaux parallèles B, C associés et deux bielles 26, 28 reliant les leviers 22, 24 aux contacts mobiles 14, 16.As can be seen in more detail at Figures 2A and 2B , the return mechanism 20 comprises two levers 22, 24 connected to one another in series, which are pivotally mounted relative to the frame 12 about parallel transverse axes B, C associated and two connecting rods 26, 28 connecting the levers 22, 24 to the movable contacts 14, 16.

Une première bielle 26 relie le contact mobile principal 14 à un premier levier 22 et la deuxième bielle 28 relie le deuxième levier 24 au contact mobile secondaire 16.A first link 26 connects the main movable contact 14 to a first lever 22 and the second link 28 connects the second lever 24 to the secondary movable contact 16.

Le premier levier 22 est constitué de deux branches 30, 32 reliées entre elles au niveau de l'axe B de pivotement du premier levier 22. Le premier levier 22 comporte ainsi une première branche 30 dont l'extrémité libre 30a est reliée au contact mobile principal par l'intermédiaire de la première bielle 26 et comporte une deuxième branche 32 dont l'extrémité libre 32a est reliée au deuxième levier 24.The first lever 22 consists of two branches 30, 32 interconnected at the pivot axis B of the first lever 22. The first lever 22 thus comprises a first leg 30 whose free end 30a is connected to the movable contact main via the first rod 26 and has a second leg 32 whose free end 32a is connected to the second lever 24.

Le deuxième levier 24 est lui aussi constitué de deux branches 34, 36 reliées entre elles au niveau de l'axe C de pivotement du deuxième levier 24. Le deuxième levier 24 comporte ainsi une première branche 34 qui est reliée à la deuxième branche 32 du premier levier 22 et comporte une deuxième branche 36 dont l'extrémité libre 36a est reliée au contact mobile secondaire 16 par l'intermédiaire de la deuxième bielle 28.The second lever 24 is also constituted by two branches 34, 36 interconnected at the pivot axis C of the second lever 24. The second lever 24 thus comprises a first branch 34 which is connected to the second branch 32 of the first lever 22 and comprises a second branch 36 whose free end 36a is connected to the secondary movable contact 16 via the second connecting rod 28.

La première branche 34 du deuxième levier 24 comporte une gorge 38 dans laquelle un doigt suiveur 40, porté par la deuxième branche 32 du premier levier 22 est apte à se déplacer.The first leg 34 of the second lever 24 has a groove 38 in which a follower pin 40 carried by the second leg 32 of the first lever 22 is able to move.

La forme de la gorge 38 est définie pour que lors d'une phase d'ouverture de la chambre de coupure 10, dans un premier temps de cette phase d'ouverture, le contact mobile principal 14 se déplace le long de l'axe principal A longitudinal et le contact mobile secondaire 16 reste immobile puis, dans un deuxième et un troisième temps de la phase d'ouverture, le contact mobile principal 14 entraîne le contact mobile secondaire 16 en déplacement le long de l'axe principal A longitudinal.The shape of the groove 38 is defined so that during an opening phase of the breaking chamber 10, in a first phase of this opening phase, the main movable contact 14 moves along the longitudinal main axis A and the secondary movable contact 16 remains stationary then, in a second and a third time of the opening phase, the main movable contact 14 drives the secondary movable contact 16 moving along the main axis A longitudinal.

Aussi, la forme de la gorge 38 est définie pour que le contact mobile principal 14 entraîne le contact mobile secondaire 16 lorsque le contact mobile principal 14 est situé entre sa position d'ouverture de la chambre de coupure et une position intermédiaire située entre la position d'ouverture et la position de fermeture de la chambre de coupure 10.Also, the shape of the groove 38 is defined so that the main movable contact 14 drives the secondary movable contact 16 when the main movable contact 14 is located between its open position of the breaking chamber and an intermediate position located between the position opening and closing position of the interrupting chamber 10.

Lorsque le contact mobile principal 14 est dans cette position intermédiaire, les deux contacts mobiles 14, 16 sont raccordés électriquement ou non raccordés électriquement.When the main movable contact 14 is in this intermediate position, the two movable contacts 14, 16 are electrically connected or not electrically connected.

Ainsi, dans ce premier temps de la phase d'ouverture de la chambre de coupure 10, seul le contact mobile principal 14 se déplace, l'énergie nécessaire à la mise en mouvement de ce seul contact mobile 14 est donc moindre que l'énergie nécessaire à la mise en mouvement des deux contacts mobiles 14, 16. Aussi, l'encombrement global du bâti 12 de la chambre de coupure 10 est limité puisque la course du contact mobile secondaire 16 est limitée.Thus, in this first phase of the opening phase of the breaking chamber 10, only the main movable contact 14 moves, the energy required for the setting in motion of this single moving contact 14 is therefore less than the energy necessary to set in motion the two movable contacts 14, 16. Also, the overall size of the frame 12 of the interrupting chamber 10 is limited since the stroke of the secondary movable contact 16 is limited.

A cet effet, la gorge 38 comporte une première portion 42 qui est en forme d'arc de cercle centré sur l'axe B de pivotement du premier levier 22 lorsque le deuxième levier 24 est dans sa position de fermeture de l'appareillage. Cette première portion 42 de la gorge 38 est la portion radialement externe de la gorge 38, par rapport à l'axe C de pivotement du deuxième levier 24.For this purpose, the groove 38 comprises a first portion 42 which is in the shape of a circular arc centered on the pivoting axis B of the first lever 22 when the second lever 24 is in its closed position of the apparatus. This first portion 42 of the groove 38 is the radially outer portion of the groove 38, relative to the pivot axis C of the second lever 24.

Lorsque le doigt suiveur 40 se déplace dans la première portion 42 de la gorge 38, et que le contact mobile secondaire 16 est dans sa position initiale de fermeture de la chambre de coupure 10, comme on peut le voir par exemple à la figure 2A, le doigt suiveur 40 ne s'appuie pas sur les parois de la gorge 38, le deuxième levier 24 n'est alors pas entraîné en pivotement par le premier levier 22.When the follower pin 40 moves in the first portion 42 of the groove 38, and the secondary movable contact 16 is in its initial closed position of the breaking chamber 10, as can be seen for example in the Figure 2A , the follower pin 40 does not rest on the walls of the groove 38, the second lever 24 is not then pivotally driven by the first lever 22.

La gorge 38 comporte une deuxième portion 44 qui est formée dans le prolongement de la première portion 42, et dont la forme est définie de manière que lorsque le doigt suiveur 40 se déplace dans cette deuxième portion 44 de la gorge 38, il s'appuie sur l'une des parois de la gorge 38.The groove 38 has a second portion 44 which is formed in the extension of the first portion 42, and whose shape is defined so that when the follower pin 40 moves in this second portion 44 of the groove 38, it relies on one of the walls of the throat 38.

Le deuxième levier 24 est alors entraîné en pivotement par le premier levier 22 et entraîne par conséquent le contact mobile secondaire 16 en déplacement par rapport au bâti 12.The second lever 24 is then pivoted by the first lever 22 and consequently causes the secondary movable contact 16 to move relative to the frame 12.

Ici, comme on peut le voir à la figure 2B, la deuxième portion 44 de la gorge 38 est globalement rectiligne et est radiale par rapport à l'axe C de pivotement du deuxième levier. Il sera compris que l'invention n'est pas limitée à cette forme de la deuxième portion 44, qui peut aussi être courbe sans sortir du domaine de l'invention.Here, as we can see at Figure 2B , the second portion 44 of the groove 38 is generally rectilinear and is radial with respect to the pivot axis C of the second lever. It will be understood that the invention is not limited to this form of the second portion 44, which can also be curved without departing from the scope of the invention.

On a représenté aux figures 3A à 3D différentes positions d'actionnement successives de la chambre de coupure 10 selon l'invention, pendant une phase d'ouverture de la chambre de coupure 10.Representatives Figures 3A to 3D different successive actuating positions of the breaking chamber 10 according to the invention, during an opening phase of the breaking chamber 10.

A la figure 3A, la chambre de coupure 10 est représentée dans sa position initiale fermée dans laquelle les contacts mobiles 14, 16 sont raccordés électriquement et dans laquelle chacun des contacts mobiles 14, 16 est dans une position initiale de fermeture, permettant la circulation d'un courant électrique au travers de la chambre de coupure 10.To the figure 3A , the interrupting chamber 10 is shown in its initial closed position in which the movable contacts 14, 16 are electrically connected and in which each of the movable contacts 14, 16 is in an initial closed position, allowing the circulation of an electric current. through the breaking chamber 10.

Lors de la phase d'ouverture, le contact mobile principal 14 est entraîné de manière continue par les moyens d'entraînement en déplacement axial le long de l'axe principal A de la chambre de coupure, ici vers la gauche, depuis sa position initiale de fermeture représenté à la figure 3A, jusqu'à sa position finale d'ouverture de la chambre de coupure représentée à la figure 3D.During the opening phase, the main movable contact 14 is driven continuously by the drive means in axial displacement along the main axis A of the interrupting chamber, here to the left, from its initial position. closure shown in figure 3A up to its final opening position of the breaking chamber shown in FIG. 3D figure .

Dans son déplacement axial, le contact mobile principal 14 entraîne le premier levier 22 en pivotement autour de son axe B de pivotement, par l'intermédiaire de la première bielle 26.In its axial displacement, the main movable contact 14 drives the first lever 22 pivotally about its pivoting axis B, via the first link 26.

Le doigt suiveur 40 décrit alors une trajectoire en forme d'arc de cercle centré sur l'axe B de pivotement du premier levier 22.The follower finger 40 then describes a trajectory in the shape of a circular arc centered on the pivoting axis B of the first lever 22.

Dans un premier temps de la phase d'ouverture de la chambre de coupure 10, correspondant au passage de l'état représenté à la figure 3A à l'état représenté à la figure 3B, le contact mobile principal 14 se déplace selon une certaine course.In a first step of the opening phase of the breaking chamber 10, corresponding to the passage of the state shown in FIG. figure 3A in the state shown in figure 3B , the main movable contact 14 moves in a certain stroke.

Pendant ce premier temps, le doigt suiveur 40 se déplace dans la première portion 42 de la gorge 38. Le deuxième levier est dans une position correspondant à la position initiale de fermeture du contact mobile secondaire 16. Ainsi, le centre de l'arc de cercle formé par la première portion 42 de la gorge 38 est centré sur l'axe de pivotement B du premier levier 22.During this first step, the follower finger 40 moves in the first portion 42 of the throat 38. The second lever is in a position corresponding to the initial position of closure of the secondary movable contact 16. Thus, the center of the arc formed by the first portion 42 of the groove 38 is centered on the pivot axis B of the first lever 22.

Ainsi, comme on l'a dit précédemment, pendant ce premier temps de la phase d'ouverture, le deuxième levier 24 n'est pas entraîné en pivotement autour de son axe C de pivotement par le premier levier 22, le contact mobile secondaire 16 reste donc immobile dans sa position initiale de fermeture de la chambre de coupure. Par conséquent, pendant ce premier temps de la phase d'ouverture, seul le contact mobile principal 14 s'est déplacé axialement.Thus, as has been said previously, during this first phase of the opening phase, the second lever 24 is not pivotally driven about its pivot axis C by the first lever 22, the secondary movable contact 16 therefore remains motionless in its initial position of closing the breaking chamber. Therefore, during this first phase of the opening phase, only the main movable contact 14 has moved axially.

A l'issue de ce premier temps de la phase d'ouverture, dans une position intermédiaire du contact mobile principal 14 représentée à la figure 3B, seul le contact mobile principal 14 est décalé axialement par rapport à sa position initiale de fermeture de la chambre de coupure 10, le contact mobile secondaire 16 est dans sa position initiale de fermeture.At the end of this first stage of the opening phase, in an intermediate position of the main movable contact 14 represented in FIG. figure 3B only the main movable contact 14 is offset axially with respect to its initial closing position of the breaking chamber 10, the secondary movable contact 16 is in its initial closed position.

Dans un deuxième temps de la phase d'ouverture, correspondant au passage de l'état représenté à la figure 3B à l'état représenté à la figure 3C, le contact mobile principal 14 continue son déplacement axial, franchissant la position intermédiaire décrite précédemment. Le contact mobile principal 14 entraîne ainsi le premier levier 22 et donc le doigt suiveur 40 en pivotement autour de l'axe B de pivotement du premier levier.In a second stage of the opening phase, corresponding to the transition from the state represented to the figure 3B in the state shown in figure 3C , the main movable contact 14 continues its axial displacement, crossing the intermediate position described above. The main movable contact 14 thus drives the first lever 22 and therefore the follower pin 40 pivoting about the pivot axis B of the first lever.

Pendant ce deuxième temps, le doigt suiveur 40 se déplace dans la deuxième portion 44 de la gorge 38.During this second time, the follower finger 40 moves in the second portion 44 of the groove 38.

La forme de la deuxième portion 44 de la gorge 38 et la trajectoire en forme d'arc de cercle du doigt suiveur 40 ont pour conséquence que le doigt suiveur 40 s'appuie sur une paroi de la deuxième portion 44 De la gorge 38, entraînant par conséquent le deuxième levier 24 en pivotement autour de son axe C dans un sens inverse du sens de rotation du premier levier 22 en pivotement autour de son axe B. ici, le deuxième levier 24 pivote donc dans le sens horaire.The shape of the second portion 44 of the groove 38 and the arc-shaped trajectory of the follower pin 40 have the consequence that the follower pin 40 rests on a wall of the second portion 44 of the groove 38, causing therefore the second lever 24 pivoting about its axis C in a direction opposite to the direction of rotation of the first lever 22 pivoting about its axis B. Here, the second lever 24 is rotated clockwise.

En pivotant, le deuxième levier 24 entraîne le contact mobile secondaire 16 en coulissement par rapport au bâti 12 dans un sens opposé au coulissement du contact mobile principal 14, c'est-à-dire ici vers la droite en se reportant aux figures.By pivoting, the second lever 24 causes the secondary movable contact 16 to slide relative to the frame 12 in a direction opposite to the sliding of the main movable contact 14, that is to say here to the right with reference to the figures.

La disposition des axes de pivotement B, C des leviers 22, 24 par rapport au bâti 12, ainsi que les orientations et dimensions des branches des leviers 22, 24 sont définies de manière telle que pendant ce deuxième temps de la phase d'ouverture, le doigt suiveur 40 se rapproche progressivement de l'axe de pivotement C du deuxième levier 24.The arrangement of the pivot axes B, C of the levers 22, 24 relative to the frame 12, as well as the orientations and dimensions of the branches of the levers 22, 24 are defined so that during this second stage of the opening phase, the follower pin 40 is progressively closer to the pivot axis C of the second lever 24.

Par ce rapprochement de l'axe de pivotement C du deuxième levier 24, l'inclinaison entre la trajectoire du doigt suiveur 40 et la première branche 34 du deuxième levier 24 augmente.By this approximation of the pivot axis C of the second lever 24, the inclination between the trajectory of the follower pin 40 and the first leg 34 of the second lever 24 increases.

Il en résulte, par un système de bras de levier, que la vitesse de pivotement du deuxième levier 24 augmente progressivement pendant ce deuxième temps de la phase d'ouverture.As a result, by means of a lever arm system, the pivoting speed of the second lever 24 increases gradually during this second stage of the opening phase.

Ainsi, la vitesse de déplacement du contact mobile secondaire 16 augment elle aussi progressivement pendant le deuxième temps de la phase d'ouverture.Thus, the speed of displacement of the secondary movable contact 16 also increases gradually during the second stage of the opening phase.

Pendant ce deuxième temps de la phase d'ouverture, les deux contacts mobiles 14, 16 se déplacent simultanément et en sens opposés. Aussi, au moins la vitesse de déplacement du contact mobile secondaire 16 augmente progressivement.During this second phase of the opening phase, the two movable contacts 14, 16 move simultaneously and in opposite directions. Also, at least the speed of displacement of the secondary movable contact 16 increases gradually.

Aussi, les courses des contacts mobiles 14, 16 sont définies de manière que le raccordement électrique entre les contacts mobiles 14, 16 est rompu lorsque la vitesse relative entre les deux contacts mobiles 14, 16 devient la plus importante, ou à toute autre position avant ou pendant la phase d'accélération du contact mobile secondaire 16.Also, the races of the movable contacts 14, 16 are defined so that the electrical connection between the movable contacts 14, 16 is broken when the relative speed between the two movable contacts 14, 16 becomes the largest, or at any other position before or during the acceleration phase of the secondary mobile contact 16.

A l'issue de ce deuxième temps de la phase d'ouverture, de préférence, les contacts mobiles sont séparés et le doigt suiveur 40 est situé entre les deux axes B, C de pivotement des leviers. Le doigt suiveur 40 est à sa position la plus proche de l'axe C de pivotement du deuxième levier 24.At the end of this second stage of the opening phase, preferably, the movable contacts are separated and the follower pin 40 is located between the two pivot axes B, C of the levers. The follower pin 40 is at its position closest to the pivot axis C of the second lever 24.

A cet instant, la vitesse relative entre les contacts mobiles 14, 16 est maximale, favorisant la rupture de l'arc électrique.At this time, the relative speed between the movable contacts 14, 16 is maximum, promoting the breaking of the electric arc.

Ensuite, pendant un troisième temps de la phase d'ouverture de la chambre de coupure 10, correspondant au passage de l'état représenté à la figure 3C à l'état représenté à la figure 3D, les contacts mobiles continuent leurs déplacements en sens opposés.Then, during a third step of the opening phase of the interrupting chamber 10, corresponding to the passage of the state represented in FIG. figure 3C in the state shown in 3D figure , the Moving contacts continue their movements in opposite directions.

Le doigt suiveur 40 se déplace dans la gorge 38 en s'éloignant progressivement de l'axe C de pivotement du deuxième levier, la vitesse de pivotement du deuxième levier 24 diminue alors progressivement.The follower pin 40 moves in the groove 38 progressively away from the pivot axis C of the second lever, the pivoting speed of the second lever 24 then decreases gradually.

Par conséquent, durant le troisième temps de la phase d'ouverture, le contact mobile secondaire 16 ralentit progressivement par rapport à sa vitesse de déplacement maximale.Therefore, during the third stage of the opening phase, the secondary movable contact 16 slows progressively with respect to its maximum displacement speed.

A l'issue du troisième temps de la phase d'ouverture, qui est aussi la fin de la phase d'ouverture, les moyens d'entraînement du contact mobile principal 14 sont arrêtés, le contact mobile principal 14 est par conséquent stoppé, ainsi que le contact mobile secondaire 16.At the end of the third stage of the opening phase, which is also the end of the opening phase, the drive means of the main movable contact 14 are stopped, the main movable contact 14 is therefore stopped, as well as that the secondary mobile contact 16.

Puisque le contact mobile secondaire 16 ralentit progressivement pendant ce troisième temps de la phase d'ouverture, son énergie cinétique est réduite, l'énergie nécessaire pour l'arrêt du contact mobile secondaire 16 est par conséquent réduite elle aussi.Since the secondary movable contact 16 progressively slows down during this third stage of the opening phase, its kinetic energy is reduced, the energy required for the stop of the secondary movable contact 16 is therefore reduced as well.

Ainsi, par le système de renvoi 20 à double levier et par la forme particulière de la gorge 38, le contact mobile principal 14 entraîne le contact mobile secondaire 16 lorsque le contact mobile principal 14 est dans une position axiale située entre la position d'ouverture de la chambre de coupure 10 et la position intermédiaire représentée à la figure 3B. Aussi, le contact mobile principal 14 n'entraîne pas le contact mobile secondaire 16 lorsque le contact mobile principal 14 est dans une position axiale située entre la position de fermeture de la chambre de coupure 10 et la position intermédiaire représentée à la figure 3B.Thus, by the double lever return system 20 and by the particular shape of the groove 38, the main movable contact 14 drives the secondary movable contact 16 when the main movable contact 14 is in an axial position located between the open position of the breaking chamber 10 and the intermediate position shown in FIG. figure 3B . Also, the main movable contact 14 does not cause the secondary mobile contact 16 when the moving contact 14 is in an axial position between the closed position of the breaking chamber 10 and the intermediate position shown in FIG. figure 3B .

On a représenté à la figure 4 un graphique représentant le déplacement, ou la course de chaque contact mobile 14, 16 par rapport au bâti 12, lors de la phase d'ouverture, pour un exemple de réalisation de l'invention.We have shown figure 4 a graph showing the displacement, or the stroke of each movable contact 14, 16 relative to the frame 12, during the opening phase, for an exemplary embodiment of the invention.

Une première courbe 50 de ce graphique est rectiligne et représente la course du contact mobile principal 14 par rapport au bâti. La deuxième courbe 52, est non rectiligne, représente la course du contact mobile secondaire 16 par rapport au bâti 12.A first curve 50 of this graph is rectilinear and represents the stroke of the main movable contact 14 relative to the frame. The second curve 52, is non-rectilinear, represents the stroke of the secondary movable contact 16 relative to the frame 12.

Une troisième courbe 66 représente la distance relative entre les deux contacts mobiles 14, 16.A third curve 66 represents the relative distance between the two movable contacts 14, 16.

Chaque courbe 50, 52 comporte une première portion 54, 56 correspondant au déplacement du contact mobile 14, 16 associé pendant le premier temps de la phase d'ouverture, c'est-à-dire jusqu'à un instant T1.Each curve 50, 52 comprises a first portion 54, 56 corresponding to the displacement of the movable contact 14, 16 associated during the first time of the opening phase, that is to say up to a time T1.

Pendant ce premier temps, comme on l'a dit précédemment, seul le contact mobile principal 14 se déplace, le contact mobile secondaire 16 reste immobile.During this first period, as mentioned previously, only the main movable contact 14 moves, the secondary movable contact 16 remains stationary.

C'est pourquoi la première portion 56 de la courbe 52 associée au contact mobile secondaire 16 est rectiligne et confondu avec l'axe des abscisses.This is why the first portion 56 of the curve 52 associated with the secondary movable contact 16 is rectilinear and coincides with the abscissa axis.

Chaque courbe 50, 52 comporte aussi une deuxième portion 58, 60 correspondant au déplacement du contact mobile 14, 16 associé pendant le deuxième temps de la phase d'ouverture, c'est-à-dire depuis l'instant T1 jusqu'à un instant T2.Each curve 50, 52 also includes a second portion 58, 60 corresponding to the displacement of the moving contact 14, 16 associated during the second time the opening phase, that is to say from the moment T1 until a time T2.

Pendant ce deuxième temps de la phase d'ouverture, le contact mobile principal 14 entraîne le contact mobile secondaire 16 et la vitesse de déplacement du contact mobile secondaire 16 augmente progressivement.During this second stage of the opening phase, the main movable contact 14 drives the secondary movable contact 16 and the speed of displacement of the secondary movable contact 16 increases progressively.

C'est pourquoi la deuxième portion 60 de la courbe 52 associée au contact mobile secondaire 16 est concave et ouverte vers le haut.This is why the second portion 60 of the curve 52 associated with the secondary movable contact 16 is concave and open upwards.

Comme on peut le voir par la troisième courbe 66, c'est pendant ce deuxième temps que les deux contacts mobiles 14, 16 viennent en contact l'un avec l'autre, à l'instant T3 pour lequel la courbe 66 coupe l'axe des abscisses.As can be seen by the third curve 66, it is during this second time that the two movable contacts 14, 16 come into contact with each other, at the instant T3 for which the curve 66 intersects the horizontal axis.

A l'instant T2, c'est-à-dire à la fin du deuxième temps de la phase de fermeture, la vitesse du contact mobile secondaire 16, est maximale.At time T2, that is to say at the end of the second time of the closing phase, the speed of the secondary movable contact 16 is maximum.

Après cet instant T2, c'est-à-dire pendant le troisième temps de la phase de fermeture, la vitesse du contact mobile secondaire 16 diminue progressivement.After this time T2, that is to say during the third time of the closing phase, the speed of the secondary mobile contact 16 decreases gradually.

Chaque courbe 50, 52 comporte ainsi une troisième portion 62, 64 correspondant au déplacement du contact mobile 14, 16 associé pendant le troisième temps de la phase d'ouverture, c'est-à-dire depuis l'instant T2 jusqu'à un instant T4.Each curve 50, 52 thus comprises a third portion 62, 64 corresponding to the displacement of the moving contact 14, 16 associated during the third time of the opening phase, that is to say from the instant T2 to a moment T4.

La troisième portion 64 de la courbe 52 associée au contact mobile secondaire 16 est concave et ouverte vers le haut, et la courbe 52 comporte un point d'inflexion au moment correspondant à l'instant T2.The third portion 64 of the curve 52 associated with the secondary movable contact 16 is concave and open upwards, and the curve 52 has a point of inflection at the moment corresponding to the instant T2.

Selon encore un autre aspect de l'invention, les dimensions des leviers 22, 24 sont définies pour que la vitesse du contact principal 14 soit supérieure à la vitesse du contact mobile secondaire 16 lors du deuxième temps de la phase d'ouverture, et lors du troisième temps de la phase d'ouverture.According to yet another aspect of the invention, the dimensions of the levers 22, 24 are defined so that the speed of the main contact 14 is greater than the speed of the secondary movable contact 16 during the second time of the opening phase, and when third time of the opening phase.

Selon une variante de cet autre aspect de l'invention, les dimensions des leviers 22, 24 sont définies pour que la vitesse du contact principal 14 soit inférieure ou égale à la vitesse du contact mobile secondaire 16 lors du deuxième temps de la phase d'ouverture, et que, lors du troisième temps de la phase d'ouverture, la vitesse du contact mobile principal 14 soit supérieure à la vitesse du contact mobile secondaire 16 lors du troisième temps de la phase d'ouverture.According to a variant of this other aspect of the invention, the dimensions of the levers 22, 24 are defined so that the speed of the main contact 14 is less than or equal to the speed of the secondary movable contact 16 during the second phase of the phase of opening, and that, during the third time of the opening phase, the speed of the main movable contact 14 is greater than the speed of the secondary movable contact 16 during the third time of the opening phase.

La fermeture de la chambre de coupure 10 s'effectue selon un déplacement inverse à celui qui vient d'être décrit, c'est-à-dire en passant de l'état représenté à la figure 3D à l'état représenté à la figure 3A.The closing of the breaking chamber 10 is carried out in a reverse movement to that just described, that is to say by passing from the state shown in FIG. 3D figure in the state shown in figure 3A .

Dans un premier temps, correspondant au passage de l'état représenté à la figure 3D à l'état représenté à la figure 3B, en passant par l'état représenté à la figure 3C, les moyens d'entraînement entraînent le contact mobile principal 14 en déplacement le long de l'axe A du bâti 12 pour qu'il se rapproche du contact mobile secondaire 16.At first, corresponding to the transition from the state represented to the 3D figure in the state shown in figure 3B , going through the state represented in the figure 3C , the driving means cause the main movable contact 14 to move along the axis A of the frame 12 so that it approaches the secondary movable contact 16.

Le contact mobile secondaire 16 est entraîné par le contact mobile principal 14 par l'intermédiaire du mécanisme de renvoi 20, en déplacement en sens inverse du contact mobile principal 14, c'est-à-dire que les contacts mobiles 14, 16 se rapprochent l'un de l'autre, puis viennent en contact électrique.The secondary movable contact 16 is driven by the main movable contact 14 by through the return mechanism 20, moving in the opposite direction of the main movable contact 14, that is to say that the movable contacts 14, 16 come closer to each other, and then come into electrical contact.

La chambre de coupure 10 est alors fermée.The interrupting chamber 10 is then closed.

Les contacts mobiles 14, 16 se déplacent au-delà de cette position de contact, jusqu'à la position relative correspondant à l'état représenté à la figure 3B, dans lequel le contact mobile secondaire 16 est dans sa position de fermeture de la chambre de coupure 10.The movable contacts 14, 16 move beyond this contact position to the relative position corresponding to the state shown in FIG. figure 3B , in which the secondary movable contact 16 is in its closed position of the breaking chamber 10.

Dans cet état, le deuxième levier 24 est dans sa position angulaire par rapport à son axe C de pivotement pour laquelle de l'arc de cercle formé par la première portion 42 de la gorge 38 est centré sur l'axe B de pivotement du premier levier 22. Aussi, dans cet état, le doigt suiveur 40 parvient dans la première portion 42 de la gorge 38.In this state, the second lever 24 is in its angular position with respect to its axis C of pivoting for which the arc formed by the first portion 42 of the groove 38 is centered on the pivot axis B of the first lever 22. Also, in this state, the follower finger 40 reaches the first portion 42 of the groove 38.

Ensuite, dans un deuxième temps de la phase de fermeture de la chambre de coupure 10, le contact mobile continue son déplacement, entraînant le premier levier 22, et donc le doigt suiveur 40.Then, in a second step of the closing phase of the interrupting chamber 10, the moving contact continues its displacement, driving the first lever 22, and therefore the follower pin 40.

Le doigt suiveur 40 se déplace dans la première portion 42 de la gorge 38, le deuxième levier 24 n'est alors pas entraîné en pivotement par le premier levier 22.The follower pin 40 moves in the first portion 42 of the groove 38, the second lever 24 is not then pivotally driven by the first lever 22.

Le contact mobile secondaire 16 reste par conséquent immobile.The secondary mobile contact 16 therefore remains motionless.

A l'issue de ce deuxième temps, qui est aussi l'issue de la phase de fermeture, la chambre de coupure 10 est dans l'état représenté à la figue 3A, les moyens d'entraînement du contact mobile principal 14 sont stoppés.At the end of this second stage, which is also the outcome of the closure phase, the chamber of 10 is in the state shown in Fig 3A, the driving means of the main movable contact 14 are stopped.

Claims (11)

  1. Electric power line switchgear (10) comprising a main movable contact (14) and a secondary movable contact (16), each of which is capable of moving relative to a stationary housing of the switchgear along a main axis A of the switchgear (10) between a closed position of the switchgear (10) and an open position of the switchgear (10);
    wherein the main movable contact (14) is connected to the secondary movable contact (16) by means of a crank mechanism (20) that transforms the movement of the main movable contact (14) in one direction into a movement of the secondary movable contact (16) in a direction opposite the direction of movement of the main movable contact;
    the switchgear being characterized in that the crank mechanism (20) comprises two levers (22, 24) connected to each other in series which are mounted to pivot relative to the stationary housing (12) about respective parallel pivot axes (B, C), each lever (22, 24) being connected firstly the main movable contact (14) or the secondary movable contact (16), and secondly to the other lever (24, 22).
  2. Switchgear (10) according to claim 1, characterized in that the crank mechanism (20) is made in such a manner that when the main movable contact (14) moves between a first position corresponding to the closed position of the switchgear (10) and an intermediate position, the crank mechanism (20) doesn't transform the movement of the main movable contact (14) in a movement of the secondary movable contact (16) and when the main movable contact (14) moves between said intermediate position and a third position corresponding to the open position of the switchgear (10), the crank mechanism (20) transforms the movement of the main movable contact (14) in a movement of the secondary movable contact (16).
  3. Switchgear (10) according to claim 2, characterized in that a first lever (22) of the crank mechanism (20) comprises a first branch (30) that is connected to the main movable contact (14) and a second branch (32) that is connected to a second lever of the crank mechanism (20), and the second lever (24) comprises a first branch (34) that is connected to the second branch (32) of the first lever (22) and a second branch (36) that is connected to the secondary movable contact (16).
  4. Switchgear (10) according to claim 3, characterized in that the first branch (34) of the second lever (24) includes a slot (38) in which a follower pin (40) secured to the second branch (32) of the first lever (22) is capable of moving during pivoting of the first lever (22).
  5. Switchgear (10) according to claim 4, characterized in that the slot (38) comprises a first portion (42) that is of circularly arcuate shape centered on the pivot axis (B) of the first lever (22) relative to the housing (12) when the second lever (24) is in its closed position of the switchgear (10).
  6. Switchgear (10) according to claim 5, characterized in that the follower pin (40) moves in the first portion (42) of the slot (38) when the main movable contact (14) moves between said first position and said intermediate position.
  7. Switchgear (10) according to claim 6, characterized in that the slot (38) comprises a second portion (44) in which the follower pin moves when the main movable contact (14) moves between said intermediate position and said third position to drive the second lever (24) in rotation about its pivot axis (C).
  8. Switchgear (10) according to claim 7, characterized in that the shape of the second portion (44) of the slot (38) is defined in such a manner that when the main movable contact (14) moves from said intermediate position to said third position , the pivot speed of the second lever (24) increases progressively.
  9. Switchgear (10) according to claim 7 or claim 8, characterized in that the shape of the second portion (44) of the slot (38) is defined in such a manner that when the main movable contact (14) moves from said intermediate position to said third position, the pivot speed of the second lever (24) increases progressively and then reduces progressively.
  10. Switchgear (10) according to claim 9, characterized in that the speed of the main contact (14) is greater than the speed of the secondary movable contact (16) when the main movable contact (14) moves from said intermediate position to said third position.
  11. Switchgear (10) according to claim 9, characterized in that the speed of the main contact (14) is less than or equal to the speed of the secondary movable contact (16) then is greater than the speed of the secondary movable contact (16) when the main movable contact (14) moves from said intermediate position to said third position.
EP14701060.7A 2013-01-24 2014-01-21 Electrical apparatus with dual movement of contacts comprising a return device with two levers Active EP2948971B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1350612A FR3001329B1 (en) 2013-01-24 2013-01-24 DOUBLE-MOVING CONTACTS ELECTRICAL EQUIPMENT COMPRISING A TWO-LEVER RETURN APPARATUS
PCT/EP2014/051128 WO2014114637A1 (en) 2013-01-24 2014-01-21 Electrical apparatus with dual movement of contacts comprising a return device with two levers

Publications (2)

Publication Number Publication Date
EP2948971A1 EP2948971A1 (en) 2015-12-02
EP2948971B1 true EP2948971B1 (en) 2017-03-15

Family

ID=48795631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14701060.7A Active EP2948971B1 (en) 2013-01-24 2014-01-21 Electrical apparatus with dual movement of contacts comprising a return device with two levers

Country Status (7)

Country Link
US (1) US9543081B2 (en)
EP (1) EP2948971B1 (en)
CN (1) CN104981887B (en)
CA (1) CA2898389C (en)
FR (1) FR3001329B1 (en)
HU (1) HUE032317T2 (en)
WO (1) WO2014114637A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6364358B2 (en) * 2015-02-03 2018-07-25 株式会社日立製作所 Gas circuit breaker
CN109192597B (en) * 2018-10-11 2020-02-04 西安西电开关电气有限公司 Circuit breaker and double-acting transmission device thereof
EP3828909B1 (en) * 2019-11-29 2023-09-13 General Electric Technology GmbH Circuit breaker with simplified non-linear double motion
CN113685721A (en) * 2020-05-19 2021-11-23 上海汽车集团股份有限公司 Automatic hydrogenation switch device and fuel cell automobile
EP3985702A1 (en) 2020-10-19 2022-04-20 General Electric Technology GmbH Circuit breaker comprising an improved linkage mechanism
CN112635231B (en) * 2020-10-21 2023-05-12 平高集团有限公司 Double-acting arc extinguishing chamber of circuit breaker and circuit breaker using same
CN114613639B (en) * 2022-03-24 2023-08-15 西安西电开关电气有限公司 Transmission system of switch

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491675A1 (en) * 1980-10-07 1982-04-09 Alsthom Atlantique Gas blast type high voltage circuit breaker - has operating piston moving contact ring axially into set of contacts held on hemispherical support
JPH0743987B2 (en) * 1989-07-07 1995-05-15 株式会社東芝 Puffer type gas circuit breaker
ES2109552T3 (en) 1994-06-20 1998-01-16 Gec Alsthom T & D Ag COMPRESSED GAS SWITCH.
DE19622460C2 (en) * 1996-05-24 1998-04-02 Siemens Ag High-voltage circuit breaker with two drivable switch contact pieces
DE19727850C1 (en) 1997-06-26 1998-09-17 Siemens Ag HV circuit breaker with two opposed-drive arc contact pieces
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
DE10003357C1 (en) * 2000-01-21 2001-07-05 Siemens Ag High voltage power switch with more precise movement processes and hence improved switching function
JP2006164673A (en) * 2004-12-06 2006-06-22 Hitachi Ltd Current breaking method of puffer type gas-blast circuit breaker and puffer type gas-blast circuit breaker using it
FR2906642B1 (en) * 2006-09-29 2008-12-19 Areva T & D Sa CYLINDRICAL CAM ACTUATION OF THE CONTACTS OF A DOUBLE MOVEMENT CUTTING CHAMBER.
FR2906929B1 (en) * 2006-10-09 2009-01-30 Areva T & D Sa ACTUATION BY CONTACTS OF A DOUBLE MOVEMENT CUT CHAMBER BY AN INSULATING TUBE
ATE475193T1 (en) 2006-12-11 2010-08-15 Abb Technology Ag CIRCUIT BREAKER WITH GEARBOX WITH DEAD POSITION
FR2962847B1 (en) 2010-07-16 2012-08-17 Areva T & D Sas CUTTING CHAMBER EQUIPMENT FOR TWO CONFINED CONTACT ELECTRODES
WO2012155952A1 (en) * 2011-05-13 2012-11-22 Abb Technology Ag Double-motion gas insulated type circuit breaker

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CA2898389C (en) 2021-05-18
FR3001329A1 (en) 2014-07-25
US9543081B2 (en) 2017-01-10
CN104981887A (en) 2015-10-14
FR3001329B1 (en) 2015-02-27
WO2014114637A1 (en) 2014-07-31
CA2898389A1 (en) 2014-07-31
US20150357128A1 (en) 2015-12-10
HUE032317T2 (en) 2017-09-28
EP2948971A1 (en) 2015-12-02
CN104981887B (en) 2017-12-22

Similar Documents

Publication Publication Date Title
EP2948971B1 (en) Electrical apparatus with dual movement of contacts comprising a return device with two levers
EP2178099B1 (en) High- or medium-voltage electrical switching apparatus with two switches comprising driving means shared with the mobile contacts of the switches
EP1983538B1 (en) Circuit breaker with rupture chamber having double movement and inverted structure
EP1870916B1 (en) Cylindrical slot guide activation of a load-break disconnector switch
EP0161120B1 (en) Combination for load break and visible disconnection of an electrical circuit
EP2943967A1 (en) Breaker having a rotating-arc contact
EP2575155B1 (en) Medium-voltage electric distribution apparatus
EP2545573B1 (en) Hybrid circuit breaker using switch for restoring to a closure
EP2178100B1 (en) Electrical switching apparatus equipped with two switches, such as a busbar section isolator and an earthing switch and comprising driving means shared with the mobile contacts of the switches
EP2605264B1 (en) Auxiliary contact actuating device in an electric switchgear apparatus
EP1906425B1 (en) Actuation of the contacts by cylindrical cam of an arcing-chamber with double movement.
EP2510530B1 (en) High-voltage circuit breaker with a removable screen for improving the field gradient
EP3182431B1 (en) Electric switching apparatus
EP0704872B1 (en) Middle voltage interruptor or circuit breaker
EP2619783B1 (en) Circuit breaker comprising a device for inserting a resistor into a power line
EP3226276B1 (en) Disconnect switch suitable for medium and high voltages and disconnection method using said disconnect switch
EP2402970B1 (en) Arc chamber for a medium- or high-voltage circuit breaker with reduced operating energy and dimensions
EP3151261B1 (en) Cam circuit-breaker for medium and high voltages
EP3339673B1 (en) Device for guiding a spring in a control mechanism and electrical protection apparatus comprising same
FR3093227A1 (en) Contact control device of a vacuum interrupter for electrical connection device
EP2959494B1 (en) Switchgear having a mobile electrode
EP3159907B1 (en) Cam circuit breaker for medium and high voltages
FR2953982A1 (en) Device for insertion of resistors in high electric current switch that acts as circuit breaker, has projecting unit projecting mobile central part with respect to external part of mobile contact at determined moment of course of contact
FR3025049A1 (en) CONTROL SYSTEM FOR ELECTRICAL EQUIPMENT WITH SELECTIVE COUPLING

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150803

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CODA, BENJAMIN

Inventor name: OZIL, JOEL

Inventor name: GREGOIRE, CYRIL

Inventor name: DARLES, LUDOVIC

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH

DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602014007576

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: H01H0033900000

Ipc: H01H0003460000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: H01H 33/02 20060101ALI20160721BHEP

Ipc: H01H 33/90 20060101ALI20160721BHEP

Ipc: H01H 3/46 20060101AFI20160721BHEP

INTG Intention to grant announced

Effective date: 20160818

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CODA, BENJAMIN

Inventor name: GREGOIRE, CYRIL

Inventor name: DARLES, LUDOVIC

Inventor name: OZIL, JOEL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG PATENT- UND MARKENANWAELTE, CH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 876329

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170415

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014007576

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170315

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170616

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170615

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 876329

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170615

REG Reference to a national code

Ref country code: HU

Ref legal event code: AG4A

Ref document number: E032317

Country of ref document: HU

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170717

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170715

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014007576

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

26N No opposition filed

Effective date: 20171218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180121

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230522

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602014007576

Country of ref document: DE

Representative=s name: KANDLBINDER, MARKUS, DIPL.-PHYS., DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231219

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231219

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: HU

Payment date: 20231222

Year of fee payment: 11

Ref country code: DE

Payment date: 20231219

Year of fee payment: 11

Ref country code: CH

Payment date: 20240202

Year of fee payment: 11