EP3664118A1 - Operating system for a vacuum bulb - Google Patents

Operating system for a vacuum bulb Download PDF

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Publication number
EP3664118A1
EP3664118A1 EP19200678.1A EP19200678A EP3664118A1 EP 3664118 A1 EP3664118 A1 EP 3664118A1 EP 19200678 A EP19200678 A EP 19200678A EP 3664118 A1 EP3664118 A1 EP 3664118A1
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EP
European Patent Office
Prior art keywords
actuation system
electrode
vacuum interrupter
adjustment
adjustment screw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19200678.1A
Other languages
German (de)
French (fr)
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EP3664118B1 (en
Inventor
François Famy
Emmanuel KUENTZ
Pierre Newinger
Denis Milan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication of EP3664118A1 publication Critical patent/EP3664118A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6664—Operating arrangements with pivoting movable contact structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/125—Load break switches comprising a separate circuit breaker
    • H01H33/126—Load break switches comprising a separate circuit breaker being operated by the distal end of a sectionalising contact arm

Definitions

  • the present invention relates to a system for actuating a vacuum interrupter in order to open an electrical circuit in a medium voltage or high voltage electrical appliance, that is to say an appliance operating at a voltage higher than 1000V.
  • the invention also relates to an electrical device comprising such an actuation system for at least one of its phases.
  • the term electrical device includes several types of devices, such as a switch, a circuit breaker, a contactor, a fuse switch, a recloser, a disconnector, etc.
  • a medium voltage or high voltage electrical appliance of the type described in the document EP2182536 comprises a vacuum interrupter which is placed not in the main circuit comprising the main switch of a phase of the device, but in a parallel bypass of this main switch.
  • a vacuum interrupter which is placed not in the main circuit comprising the main switch of a phase of the device, but in a parallel bypass of this main switch.
  • the vacuum interrupter receives a current only during the opening phase of the main phase circuit, and not in normal operation.
  • the bulb is not stressed during a closing operation of the main circuit and it does not have to withstand any short-circuit current either. It just needs to be able to withstand a Transient Recovery Voltage (TRV) after the main circuit is cut.
  • TRV Transient Recovery Voltage
  • the vacuum interrupter can advantageously be simplified and designed to be much smaller compared to a conventional architecture in which the vacuum interrupter would be placed in the main circuit of the electrical appliance.
  • the document EP3300097 already describes a device for driving the mobile electrode of a vacuum interrupter in such a product.
  • This drive device is actuated by the movable contact of the main switch thanks for example to a movable paddle.
  • the drive device then drives the mobile electrode to the open position, by means of an adjustment nut which also makes it possible to precisely adjust the movement of the mobile electrode.
  • This training device comprises a number of small parts which require precise mechanical adjustments to obtain good reproducibility of the system. It can sometimes also generate torsional stresses on the mobile electrode.
  • One of the aims of the invention is therefore to propose a simple solution for such a device for driving a mobile electrode, which is reliable and economical, and which is easy to implement. It also aims to minimize the dielectric stresses of the system and also to minimize the torsional forces which can be applied to the bellows of the movable electrode, in particular during implementation.
  • the invention describes a system for actuating a vacuum bulb of an electrical appliance, the vacuum bulb comprising a fixed electrode and an electrode which is movable along a longitudinal axis between a closed position in which the two electrodes are in contact with each other and an open position in which the two electrodes are separated, the actuating system comprising an adjusting nut which is movable in rotation around the longitudinal axis and which is driven by a driving device for carrying out an opening movement of the mobile electrode.
  • the actuation system comprises an adjustment screw cooperating with the adjustment nut so as to vary the instant when the drive device drives the mobile electrode, the mobile electrode is integral with the adjusting screw in translation along the longitudinal axis, but is free to rotate relative to the adjusting screw, and the adjusting screw is limited in rotation by a locking means.
  • the movable electrode comprises a transverse groove which extends around the movable electrode and the adjusting screw comprises a hooking device which is inserted into the groove.
  • the attachment device comprises several attachment clips, the ends of which are inserted into the groove.
  • the actuation system comprises a deflector which is placed between the vacuum interrupter and the adjustment screw, and which comprises an electrical contact of the electric spring type electrically connected to the mobile electrode, the mobile electrode being able to slide in relation to the electric spring.
  • the deflector is fixed to the vacuum interrupter by fixing clips and is connected to an external supply conductor.
  • the blocking means comprises a pin which is fixed to a support of the vacuum interrupter, passes through the deflector and comes to block one of the rotationally fastening clips.
  • the adjustment screw comprises an external thread cooperating with an internal thread of the adjustment nut.
  • the invention also describes an electrical device comprising a main phase switch and such a system for actuating a vacuum interrupter placed as a bypass of the main phase switch.
  • the appliance preferably includes a vacuum bulb bypassing each main switch and therefore a bulb actuation system empty for each phase.
  • a medium-voltage or high-voltage electrical appliance comprises a main phase switch and a vacuum interrupter 1 which is placed in bypass of the main switch.
  • the vacuum interrupter 1 is fixed to an insulating support 5 and comprises a mobile conductive electrode 2 (also called movable rod) and a fixed conductive electrode (also called fixed rod and not visible in the figures).
  • the movable electrode 2 which has the general shape of a rod, passes through a cover 6 of the vacuum interrupter 1. It is movable along a longitudinal axis X between a so-called closed position in which the two electrodes are in contact one with the other and a so-called open position in which the two electrodes are separated. In all of the figures in this document, the mobile electrode 2 is shown in the closed position.
  • the vacuum interrupter also includes a sealing bellows 7 which is fixed to the movable electrode 2 and to the cover 6.
  • the bellows 7 is a fragile element, essential for sealing inside the vacuum interrupter and it is therefore necessary to avoid twists which would be caused for example if a rotational force were applied to the mobile electrode 2.
  • the sealing bellows 7 is therefore particularly fragile.
  • the movable electrode 2 of the vacuum interrupter 1 is driven by an actuation system which makes it possible to carry out an opening movement of the vacuum interrupter, that is to say to move from the closed position in the open position.
  • the mobile electrode 2 can for example be driven by a return spring not shown in the figures.
  • the actuation system comprises a drive device comprising a pallet 15 which, during the opening movement, is rotatable around a transverse axis 19, and a ring 16 which is integral with the pallet 15 by the intermediate of two lateral connecting rods 17.
  • this drive device moves under the action of a mechanism for opening the switch main phase (not shown in the figures) which acts on the vane 15.
  • the figure 1 thus shows an arrow diagramming the thrust exerted by the opening mechanism on the pallet 15 and on the connecting rods 17 during the opening movement of the vacuum interrupter 1.
  • the actuation system also comprises a adjusting nut 10 made of insulating material, which is linked to the mobile electrode 2 and which is capable of rotation to adjust its position relative to the mobile electrode 2, thanks to an internal thread.
  • a adjusting nut 10 made of insulating material, which is linked to the mobile electrode 2 and which is capable of rotation to adjust its position relative to the mobile electrode 2, thanks to an internal thread.
  • the ring 16 of the drive device comes to abut first against a flange 11 of the adjusting nut 10 (see figure 2 ) then pushes the adjusting nut 10 along the X axis in order to pull the mobile electrode 2 towards the open position.
  • the adjusting nut 10 therefore serves on the one hand to transmit to the mobile electrode 2 the movement of the opening mechanism, and on the other hand to regulate in a simple manner the precise instant when the mobile and fixed electrodes of the vacuum interrupter will separate by adjusting the adjustment between the adjusting nut 10 and the movable electrode 2.
  • the actuation system comprises an adjustment screw 20 made of insulating plastic material (for example polyamide 6.6).
  • This adjusting screw 20 has a hollow cylindrical shape and has a first part provided with an external thread 21 and a second opposite part provided with a hooking device 22 for the movable electrode 2.
  • the external thread 21 cooperates with the internal thread of the adjustment nut 10 to adjust the adjustment of the adjustment nut 10 relative to the movable electrode 2.
  • the adjustment nut 10 by slightly turning the adjustment nut 10 in a one way or another, we vary the distance between the ring 16 and the flange 11 of the adjusting nut 10, and therefore we vary the instant when the ring 16 will come into contact with the nut 10 and therefore the instantaneous electrode 2 will start its opening movement.
  • the attachment device 22 advantageously makes it possible to secure the adjustment screw 20 to the movable electrode 2 in translation along the longitudinal axis X, while leaving the movable electrode 2 free to rotate about the axis X relative to the adjusting screw 20.
  • the adjusting screw 20 does not generate rotational stress on the movable electrode 2 and therefore does not risk damaging the sealing bellows 7.
  • the mobile electrode 2 has a free end 3 and a transverse groove 4 extending around the rod of the movable electrode 2, near this end 3.
  • the attachment device is composed of several attachment clips 22 whose ends are inserted in the groove 4 to secure the adjustment screw 20 and the electrode mobile 2.
  • the free end 3 of the mobile electrode 2 has a rounded shape, for example of the semi-spherical type, so as to avoid edges which could generate dielectric problems.
  • the actuation system also includes a metal deflector 30 surrounding the rod of the movable electrode 2. It is placed between the vacuum bulb 1 and the adjustment screw 20 and is for example fixed to the support 5 of the bulb. vacuum 1, thanks to two fixing clips 32, see in particular Figures 3 and 5 .
  • This deflector 30 has a disc shape, the ends of which are rounded to avoid edges, and is electrically connected to a conductive cable 33.
  • An electrical contact of the electrical spring type 31 in the shape of a torus is trapped inside the deflector 30
  • This electric spring 31 is wound around the mobile electrode 2, upstream of the groove 4, so as to ensure good electrical contact, capable for example of passing 2000A at 24kV for 20 msec, while allowing it to slide.
  • the movable electrode 2 that is to say without causing rotational stress on the movable electrode 2, always in order to avoid damaging the bellows 7.
  • the deflector 30 is a kind of screen which aims to attenuate the electric fields in this area so as to dielectrically protect the electric spring and the walls of the vacuum interrupter. It also serves to ensure, thanks to the electric spring 31, the electrical connection between the movable electrode 2 and the conductive cable 33 itself connected to the main movable contact of the electrical appliance.
  • the actuation system comprises a locking means 9 to prevent or limit the rotation of the adjustment screw 20, so that the rotation of the adjustment nut 10 does not cause that of the screw 20
  • a locking means 9 to prevent or limit the rotation of the adjustment screw 20, so that the rotation of the adjustment nut 10 does not cause that of the screw 20
  • a very simple solution presented in the embodiment of the figures, consists of a pin 9 emerging from the insulating support 5 of the vacuum interrupter 1 and passing through the deflector 30, through an orifice arranged in the deflector 30.
  • This pin 9 is designed to come to bear on a flange 23 of one of the fastening clips 22 when the adjustment screw 20 is mounted on the mobile electrode 2, thus preventing the latter from rotating in one direction. In the other direction, the rotation of the adjustment screw 20 is also limited as soon as the pin 9 comes into contact with the flange of another adjacent hooking clip 22.
  • Other locking means 9 would be easily conceivable.
  • the actuation system comprises a removable ring 12 making it possible to freeze the position of the adjustment nut 10 relative to the mobile electrode 2, once the adjustment has been made (see figure 1 ).
  • This ring 12 is introduced into two lateral projections 18 extending on either side of the ring 16.
  • the ring 12 can easily snap into the projections 18 so that it is held in the locking position once the adjustment made, and can also be easily removed when an operator wants to adjust the position of the adjustment nut 10.
  • the adjustment nut 10 is locked by notches in the ring 12 which cooperate with teeth 13 of the adjustment nut 10 positioned around its outer periphery to prevent rotation of the nut 10.
  • the number of teeth / notches determine the fineness of the possible adjustment angle of the adjustment nut 10 relative to the movable electrode 2.
  • the adjusting nut 10 optionally has at its end a shape which allows it to be manipulated with a wrench or a tool, such as a hexagonal shape in the example of the figure 1 .
  • the device preferably comprises a vacuum interrupter bypassing each main switch and therefore an actuation system for the 'vacuum interrupter for each phase, according to the invention.
  • the opening mechanism which acts on the actuation systems of the vacuum ampoules can however be common to all the phases of the apparatus.

Abstract

L'invention concerne un système d'actionnement d'une ampoule à vide (1) d'un appareil électrique, l'ampoule à vide comprenant une électrode fixe et une électrode mobile (2) selon un axe longitudinal (X) entre une position fermée et une position ouverte. Le système d'actionnement comprend un écrou de réglage (10) mobile en rotation autour de l'axe longitudinal (X) et entraîné par un dispositif d'entraînement pour effectuer un mouvement d'ouverture de l'électrode mobile (2), et une vis de réglage (20) coopérant avec l'écrou de réglage (10) de façon à faire varier l'instant où le dispositif d'entraînement entraîne l'électrode mobile (2). L'électrode mobile (2) est solidaire de la vis de réglage (20) en translation selon l'axe longitudinal, mais est libre en rotation par rapport à la vis de réglage (20) et la vis de réglage (20) est limitée en rotation par un moyen de blocage (9).

Figure imgaf001
The invention relates to a system for actuating a vacuum interrupter (1) of an electrical appliance, the vacuum interrupter comprising a fixed electrode and a movable electrode (2) along a longitudinal axis (X) between a position closed and an open position. The actuation system comprises an adjustment nut (10) movable in rotation about the longitudinal axis (X) and driven by a drive device to effect an opening movement of the movable electrode (2), and an adjustment screw (20) cooperating with the adjustment nut (10) so as to vary the instant when the drive device drives the mobile electrode (2). The movable electrode (2) is integral with the adjustment screw (20) in translation along the longitudinal axis, but is free to rotate relative to the adjustment screw (20) and the adjustment screw (20) is limited in rotation by a locking means (9).
Figure imgaf001

Description

Domaine technique de l'inventionTechnical field of the invention

La présente invention concerne un système d'actionnement d'une ampoule à vide dans le but d'ouvrir un circuit électrique dans un appareil électrique de moyenne tension ou haute tension, c'est-à-dire un appareil opérant à une tension supérieure à 1000V.The present invention relates to a system for actuating a vacuum interrupter in order to open an electrical circuit in a medium voltage or high voltage electrical appliance, that is to say an appliance operating at a voltage higher than 1000V.

L'invention concerne également un appareil électrique comportant un tel système d'actionnement pour au moins une de ses phases. Dans le présent document, le terme appareil électrique regroupe indifféremment plusieurs types d'appareils comme un interrupteur, un disjoncteur, un contacteur, un interrupteur fusible, un recloser, un sectionneur, etc.The invention also relates to an electrical device comprising such an actuation system for at least one of its phases. In this document, the term electrical device includes several types of devices, such as a switch, a circuit breaker, a contactor, a fuse switch, a recloser, a disconnector, etc.

Etat de la techniqueState of the art

Un appareil électrique moyenne tension ou haute tension du type de celui décrit dans le document EP2182536 comporte une ampoule à vide qui est placée non pas dans le circuit principal comprenant l'interrupteur principal d'une phase de l'appareil, mais dans une dérivation en parallèle de cet interrupteur principal. Ainsi, en fonctionnement normal lorsque l'interrupteur principal est fermé, il ne passe aucun courant dans l'ampoule à vide. Celle-ci n'est sollicitée que durant une opération d'ouverture du circuit principal, à l'aide d'un mécanisme d'ouverture de l'interrupteur principal qui permet d'abord de basculer le courant progressivement du circuit principal vers la dérivation, ce qui permet alors d'ouvrir l'interrupteur principal pendant que le courant passe intégralement dans l'ampoule à vide. Celle-ci est ensuite ouverte à son tour par le mécanisme d'ouverture. On évite ainsi l'apparition d'un arc électrique de coupure au niveau de l'interrupteur principal lors de l'opération d'ouverture, car c'est l'ampoule à vide qui coupe le courant principal.A medium voltage or high voltage electrical appliance of the type described in the document EP2182536 comprises a vacuum interrupter which is placed not in the main circuit comprising the main switch of a phase of the device, but in a parallel bypass of this main switch. Thus, in normal operation when the main switch is closed, no current flows through the vacuum interrupter. This is only requested during an opening operation of the main circuit, using a mechanism for opening the main switch which first allows the current to gradually switch from the main circuit to the bypass. , which then opens the main switch while the current flows entirely through the vacuum interrupter. This is then opened in turn by the opening mechanism. This avoids the appearance of an electric cutting arc at the main switch during the opening operation, because it is the vacuum bulb which cuts the main current.

Grâce à cette architecture, l'ampoule à vide reçoit un courant uniquement durant la phase d'ouverture du circuit principal de phase, et pas en fonctionnement normal. De plus, l'ampoule n'est pas sollicitée durant une opération de fermeture du circuit principal et elle n'a pas à supporter non plus un éventuel courant de court-circuit. Elle doit juste être capable de supporter une tension transitoire de rétablissement (Transient Recovery Voltage - TRV) après la coupure du courant dans le circuit principal.Thanks to this architecture, the vacuum interrupter receives a current only during the opening phase of the main phase circuit, and not in normal operation. In addition, the bulb is not stressed during a closing operation of the main circuit and it does not have to withstand any short-circuit current either. It just needs to be able to withstand a Transient Recovery Voltage (TRV) after the main circuit is cut.

Il en résulte que l'ampoule à vide peut avantageusement être simplifiée et conçue d'une taille bien inférieure par rapport à une architecture classique dans laquelle l'ampoule à vide serait placée dans le circuit principal de l'appareil électrique.As a result, the vacuum interrupter can advantageously be simplified and designed to be much smaller compared to a conventional architecture in which the vacuum interrupter would be placed in the main circuit of the electrical appliance.

Le document EP3300097 décrit déjà un dispositif permettant d'entraîner l'électrode mobile d'une ampoule à vide dans un tel produit. Ce dispositif d'entrainement est actionné par le contact mobile de l'interrupteur principal grâce par exemple à une palette mobile. Le dispositif d'entrainement entraîne alors l'électrode mobile vers la position ouverte, par l'intermédiaire d'un écrou de réglage qui permet en plus d'ajuster précisément le mouvement de l'électrode mobile. Ce dispositif d'entrainement comporte un certain nombre de petites pièces qui nécessitent des ajustements mécaniques précis pour obtenir une bonne reproductibilité du système. Il peut parfois également générer des contraintes de torsion sur l'électrode mobile.The document EP3300097 already describes a device for driving the mobile electrode of a vacuum interrupter in such a product. This drive device is actuated by the movable contact of the main switch thanks for example to a movable paddle. The drive device then drives the mobile electrode to the open position, by means of an adjustment nut which also makes it possible to precisely adjust the movement of the mobile electrode. This training device comprises a number of small parts which require precise mechanical adjustments to obtain good reproducibility of the system. It can sometimes also generate torsional stresses on the mobile electrode.

Un des buts de l'invention est donc de proposer une solution simple pour un tel dispositif d'entrainement d'une électrode mobile, qui soit fiable et économique, et qui soit facile à mettre en oeuvre. Elle a également pour but de minimiser les contraintes diélectriques du système et de minimiser également les efforts de torsion qui peuvent s'appliquer au soufflet de l'électrode mobile, notamment durant la mise en œuvre.One of the aims of the invention is therefore to propose a simple solution for such a device for driving a mobile electrode, which is reliable and economical, and which is easy to implement. It also aims to minimize the dielectric stresses of the system and also to minimize the torsional forces which can be applied to the bellows of the movable electrode, in particular during implementation.

Exposé de l'inventionStatement of the invention

Pour cela, l'invention décrit un système d'actionnement d'une ampoule à vide d'un appareil électrique, l'ampoule à vide comprenant une électrode fixe et une électrode qui est mobile selon un axe longitudinal entre une position fermée dans laquelle les deux électrodes sont en contact l'une avec l'autre et une position ouverte dans laquelle les deux électrodes sont séparées, le système d'actionnement comprenant un écrou de réglage qui est mobile en rotation autour de l'axe longitudinal et qui est entraîné par un dispositif d'entraînement pour effectuer un mouvement d'ouverture de l'électrode mobile. Selon l'invention, le système d'actionnement comprend une vis de réglage coopérant avec l'écrou de réglage de façon à faire varier l'instant où le dispositif d'entraînement entraîne l'électrode mobile, l'électrode mobile est solidaire de la vis de réglage en translation selon l'axe longitudinal, mais est libre en rotation par rapport à la vis de réglage, et la vis de réglage est limitée en rotation par un moyen de blocage.For this, the invention describes a system for actuating a vacuum bulb of an electrical appliance, the vacuum bulb comprising a fixed electrode and an electrode which is movable along a longitudinal axis between a closed position in which the two electrodes are in contact with each other and an open position in which the two electrodes are separated, the actuating system comprising an adjusting nut which is movable in rotation around the longitudinal axis and which is driven by a driving device for carrying out an opening movement of the mobile electrode. According to the invention, the actuation system comprises an adjustment screw cooperating with the adjustment nut so as to vary the instant when the drive device drives the mobile electrode, the mobile electrode is integral with the adjusting screw in translation along the longitudinal axis, but is free to rotate relative to the adjusting screw, and the adjusting screw is limited in rotation by a locking means.

Selon une autre caractéristique, l'électrode mobile comporte une gorge transversale qui s'étend autour de l'électrode mobile et la vis de réglage comporte un dispositif d'accrochage qui vient s'insérer dans la gorge. Le dispositif d'accrochage comporte plusieurs clips d'accrochage dont les extrémités viennent s'insérer dans la gorge.According to another characteristic, the movable electrode comprises a transverse groove which extends around the movable electrode and the adjusting screw comprises a hooking device which is inserted into the groove. The attachment device comprises several attachment clips, the ends of which are inserted into the groove.

Selon une caractéristique, le système d'actionnement comporte un déflecteur qui est placé entre l'ampoule à vide et la vis de réglage, et qui comprend un contact électrique de type ressort électrique connecté électriquement à l'électrode mobile, l'électrode mobile pouvant coulisser par rapport au ressort électrique. Le déflecteur est fixé à l'ampoule à vide par des clips de fixation et est connecté à un conducteur d'alimentation extérieur.According to one characteristic, the actuation system comprises a deflector which is placed between the vacuum interrupter and the adjustment screw, and which comprises an electrical contact of the electric spring type electrically connected to the mobile electrode, the mobile electrode being able to slide in relation to the electric spring. The deflector is fixed to the vacuum interrupter by fixing clips and is connected to an external supply conductor.

Selon une autre caractéristique, le moyen de blocage comprend un pion qui est fixé à un support de l'ampoule à vide, traverse le déflecteur et vient bloquer un des clips d'accrochage en rotation.According to another characteristic, the blocking means comprises a pin which is fixed to a support of the vacuum interrupter, passes through the deflector and comes to block one of the rotationally fastening clips.

Selon une autre caractéristique, la vis de réglage comporte un filetage externe coopérant avec un filetage interne de l'écrou de réglage.According to another characteristic, the adjustment screw comprises an external thread cooperating with an internal thread of the adjustment nut.

L'invention décrit également un appareil électrique comportant un interrupteur principal de phase et un tel système d'actionnement d'une ampoule à vide placée en dérivation de l'interrupteur principal de phase.The invention also describes an electrical device comprising a main phase switch and such a system for actuating a vacuum interrupter placed as a bypass of the main phase switch.

Dans le cas d'un appareil électrique multiphases (par exemple triphasé) ayant donc un interrupteur principal pour chacune des phases, l'appareil comporte préférentiellement une ampoule à vide en dérivation de chaque interrupteur principal et donc un système d'actionnement de l'ampoule à vide pour chaque phase.In the case of a multi-phase electrical appliance (for example three-phase) therefore having a main switch for each of the phases, the appliance preferably includes a vacuum bulb bypassing each main switch and therefore a bulb actuation system empty for each phase.

Brève description des figuresBrief description of the figures

D'autres caractéristiques vont apparaître dans la description détaillée qui suit faite en regard des dessins annexés dans lesquels :

  • [Fig 1] - la figure 1 montre une vue générale en perspective du mécanisme d'actionnement d'une ampoule à vide d'une phase d'un appareil électrique,
  • [Fig 2] - la figure 2 représente une coupe partielle en vue de côté d'un mode de réalisation du mécanisme d'actionnement selon l'invention,
  • [Fig 3] - la figure 3 représente une coupe partielle en vue de dessus du mécanisme de la figure 2,
  • [Fig 4-5] - la figure 4 détaille une extrémité de l'électrode mobile sans la vis de réglage du mécanisme d'actionnement, et la figure 5 reprend la figure 4 mais avec la vis de réglage.
Other characteristics will appear in the following detailed description given with reference to the appended drawings in which:
  • [ Fig 1 ] - the figure 1 shows a general perspective view of the actuation mechanism of a vacuum interrupter of a phase of an electrical appliance,
  • [ Fig 2 ] - the figure 2 represents a partial sectional side view of an embodiment of the actuation mechanism according to the invention,
  • [ Fig 3 ] - the figure 3 shows a partial section from above of the mechanism of the figure 2 ,
  • [ Fig 4-5 ] - the figure 4 details one end of the movable electrode without the adjustment screw of the actuation mechanism, and the figure 5 resume the figure 4 but with the adjusting screw.

En référence aux figures 1 à 3, un appareil électrique moyenne tension ou haute tension comporte un interrupteur principal de phase et une ampoule à vide 1 qui est placée en dérivation de l'interrupteur principal. De façon connue, l'ampoule à vide 1 est fixée à un support isolant 5 et comporte une électrode mobile 2 conductrice (appelée aussi tige mobile) et une électrode fixe conductrice (appelée aussi tige fixe et non visible sur les figures). L'électrode mobile 2, qui a une forme générale de tige, traverse un couvercle 6 de l'ampoule à vide 1. Elle est mobile selon un axe longitudinal X entre une position dite fermée dans laquelle les deux électrodes sont en contact l'une avec l'autre et une position dite ouverte dans laquelle les deux électrodes sont séparées. Dans toutes les figures du présent document, l'électrode mobile 2 est représentée en position fermée.With reference to Figures 1 to 3 , a medium-voltage or high-voltage electrical appliance comprises a main phase switch and a vacuum interrupter 1 which is placed in bypass of the main switch. In known manner, the vacuum interrupter 1 is fixed to an insulating support 5 and comprises a mobile conductive electrode 2 (also called movable rod) and a fixed conductive electrode (also called fixed rod and not visible in the figures). The movable electrode 2, which has the general shape of a rod, passes through a cover 6 of the vacuum interrupter 1. It is movable along a longitudinal axis X between a so-called closed position in which the two electrodes are in contact one with the other and a so-called open position in which the two electrodes are separated. In all of the figures in this document, the mobile electrode 2 is shown in the closed position.

L'ampoule à vide comporte également un soufflet d'étanchéité 7 qui est fixé à l'électrode mobile 2 et au couvercle 6. Le soufflet 7 est un élément fragile, essentiel pour l'étanchéité à l'intérieur de l'ampoule à vide et il faut donc éviter des torsions qui seraient provoquées par exemple si un effort de rotation était appliqué à l'électrode mobile 2. De plus, du fait que l'architecture proposée de l'appareil interrupteur ne nécessite que des ampoules à vide de petite taille, le soufflet d'étanchéité 7 est donc particulièrement fragile.The vacuum interrupter also includes a sealing bellows 7 which is fixed to the movable electrode 2 and to the cover 6. The bellows 7 is a fragile element, essential for sealing inside the vacuum interrupter and it is therefore necessary to avoid twists which would be caused for example if a rotational force were applied to the mobile electrode 2. In addition, because the proposed architecture of the switching device requires only small vacuum bulbs size, the sealing bellows 7 is therefore particularly fragile.

L'électrode mobile 2 de l'ampoule à vide 1 est entraînée par un système d'actionnement qui permet d'effectuer un mouvement d'ouverture de l'ampoule à vide, c'est-à-dire de passer de la position fermée à la position ouverte. Pour effectuer le mouvement inverse de fermeture, c'est-à-dire passer de la position ouverte à la position fermée, l'électrode mobile 2 peut par exemple est entraînée par un ressort de rappel non représenté sur les figures.The movable electrode 2 of the vacuum interrupter 1 is driven by an actuation system which makes it possible to carry out an opening movement of the vacuum interrupter, that is to say to move from the closed position in the open position. To perform the reverse closing movement, that is to say to pass from the open position to the closed position, the mobile electrode 2 can for example be driven by a return spring not shown in the figures.

Le système d'actionnement comporte un dispositif d'entraînement comprenant une palette 15 qui, durant le mouvement d'ouverture, est mobile en rotation autour d'un axe transversal 19, et un anneau 16 qui est solidaire de la palette 15 par l'intermédiaire de deux bielles latérales 17. Durant une opération d'ouverture d'un interrupteur principal de phase de l'appareil de connexion électrique, ce dispositif d'entraînement se déplace sous l'action d'un mécanisme d'ouverture de l'interrupteur principal de phase (non représenté sur les figures) qui agit sur la palette 15. La figure 1 montre ainsi une flèche schématisant la poussée exercée par le mécanisme d'ouverture sur la palette 15 et sur les bielles 17 durant le mouvement d'ouverture de l'ampoule à vide 1.The actuation system comprises a drive device comprising a pallet 15 which, during the opening movement, is rotatable around a transverse axis 19, and a ring 16 which is integral with the pallet 15 by the intermediate of two lateral connecting rods 17. During an opening operation of a main phase switch of the electrical connection device, this drive device moves under the action of a mechanism for opening the switch main phase (not shown in the figures) which acts on the vane 15. The figure 1 thus shows an arrow diagramming the thrust exerted by the opening mechanism on the pallet 15 and on the connecting rods 17 during the opening movement of the vacuum interrupter 1.

Le système d'actionnement comporte également un écrou de réglage 10 en matière isolante, qui est lié à l'électrode mobile 2 et qui est susceptible de rotation pour ajuster sa position par rapport à l'électrode mobile 2, grâce à un filetage interne. Durant le mouvement d'ouverture, l'anneau 16 du dispositif d'entraînement vient d'abord buter contre un rebord 11 de l'écrou de réglage 10 (voir figure 2) puis pousse l'écrou de réglage 10 selon l'axe X afin de tirer l'électrode mobile 2 vers la position ouverte. Avantageusement, l'écrou de réglage 10 sert donc d'une part à transmettre à l'électrode mobile 2 le mouvement du mécanisme d'ouverture, et d'autre part à régler de façon simple l'instant précis où les électrodes mobile et fixe de l'ampoule à vide vont se séparer en jouant sur l'ajustement entre l'écrou de réglage 10 et l'électrode mobile 2.The actuation system also comprises a adjusting nut 10 made of insulating material, which is linked to the mobile electrode 2 and which is capable of rotation to adjust its position relative to the mobile electrode 2, thanks to an internal thread. During the opening movement, the ring 16 of the drive device comes to abut first against a flange 11 of the adjusting nut 10 (see figure 2 ) then pushes the adjusting nut 10 along the X axis in order to pull the mobile electrode 2 towards the open position. Advantageously, the adjusting nut 10 therefore serves on the one hand to transmit to the mobile electrode 2 the movement of the opening mechanism, and on the other hand to regulate in a simple manner the precise instant when the mobile and fixed electrodes of the vacuum interrupter will separate by adjusting the adjustment between the adjusting nut 10 and the movable electrode 2.

La liaison entre l'écrou de réglage 10 et l'électrode mobile 2 est montré dans les figures 2 et 3. Selon l'invention, le système d'actionnement comporte une vis de réglage 20 en matière plastique isolante (par exemple en polyamide 6.6). Cette vis de réglage 20 a une forme cylindrique creuse et présente une première partie dotée d'un filetage externe 21 et une seconde partie opposée dotée d'un dispositif d'accrochage 22 de l'électrode mobile 2.The connection between the adjusting nut 10 and the movable electrode 2 is shown in the figures 2 and 3 . According to the invention, the actuation system comprises an adjustment screw 20 made of insulating plastic material (for example polyamide 6.6). This adjusting screw 20 has a hollow cylindrical shape and has a first part provided with an external thread 21 and a second opposite part provided with a hooking device 22 for the movable electrode 2.

Le filetage externe 21 coopère avec le filetage interne de l'écrou de réglage 10 pour ajuster le réglage de l'écrou de réglage 10 par rapport à l'électrode mobile 2. En effet, en tournant légèrement l'écrou de réglage 10 dans un sens ou dans un autre, on fait varier la distance entre l'anneau 16 et le rebord 11 de l'écrou de réglage 10, et donc on fait varier l'instant où l'anneau 16 va entrer en contact avec le l'écrou de réglage 10 et donc l'instant l'électrode mobile 2 va commencer son mouvement d'ouverture.The external thread 21 cooperates with the internal thread of the adjustment nut 10 to adjust the adjustment of the adjustment nut 10 relative to the movable electrode 2. In fact, by slightly turning the adjustment nut 10 in a one way or another, we vary the distance between the ring 16 and the flange 11 of the adjusting nut 10, and therefore we vary the instant when the ring 16 will come into contact with the nut 10 and therefore the instantaneous electrode 2 will start its opening movement.

Le dispositif d'accrochage 22 permet avantageusement de solidariser la vis de réglage 20 à l'électrode mobile 2 en translation selon l'axe longitudinal X, tout en laissant l'électrode mobile 2 libre en rotation autour de l'axe X par rapport à la vis de réglage 20. Ainsi, la vis de réglage 20 ne génère pas de contrainte en rotation sur l'électrode mobile 2 et donc ne risque pas d'endommager le soufflet d'étanchéité 7. En effet, c'est le soufflet d'étanchéité 7 qui crée la seule contrainte en rotation sur l'électrode mobile 2.The attachment device 22 advantageously makes it possible to secure the adjustment screw 20 to the movable electrode 2 in translation along the longitudinal axis X, while leaving the movable electrode 2 free to rotate about the axis X relative to the adjusting screw 20. Thus, the adjusting screw 20 does not generate rotational stress on the movable electrode 2 and therefore does not risk damaging the sealing bellows 7. In fact, it is the bellows d seal 7 which creates the only rotational stress on the mobile electrode 2.

Pour cela, dans le mode de réalisation présenté, l'électrode mobile 2 comporte une extrémité libre 3 et une gorge 4 transversale s'étendant autour de la tige de l'électrode mobile 2, à proximité de cette extrémité 3. Le dispositif d'accrochage est composé de plusieurs clips d'accrochage 22 dont les extrémités viennent s'insérer dans la gorge 4 pour solidariser la vis de réglage 20 et l'électrode mobile 2.For this, in the embodiment presented, the mobile electrode 2 has a free end 3 and a transverse groove 4 extending around the rod of the movable electrode 2, near this end 3. The attachment device is composed of several attachment clips 22 whose ends are inserted in the groove 4 to secure the adjustment screw 20 and the electrode mobile 2.

Dans l'exemple présenté dans les figures, la vis de réglage 20 comporte trois clips d'accrochage 22 qui sont répartis régulièrement autour du cylindre de la vis de réglage 20, chaque clip ayant une largeur correspondant à un arc de cercle compris environ entre 30° et 60° (par exemple de l'ordre de 45°). Le fait d'avoir trois clips d'accrochage 22 régulièrement répartis contribue notamment au bon centrage de la vis de réglage 20 par rapport à l'électrode mobile 2. La largeur est choisie pour que les clips 22 soient suffisamment élastiques pour s'insérer dans la gorge 4 mais néanmoins suffisamment résistants. On pourrait bien évidemment choisir pour ce dispositif d'accrochage un nombre différent de clips et/ou une largeur différente de clip qui conviennent aussi. Le dispositif d'accrochage fournit donc une solution simple pour :

  • effectuer facilement le montage et l'assemblage du système d'actionnement avec l'ampoule à vide grâce à l'élasticité des clips 22 qui permet de les insérer très rapidement dans la gorge 4 lors du montage, et
  • solidariser la vis de réglage 20 et l'électrode mobile 2 seulement dans un mouvement de translation sans les contraindre en rotation, car les extrémités des clips 22 peuvent bouger en rotation dans la gorge 4. Donc un mouvement de rotation de la vis de réglage 20 n'est pas transmis à l'électrode mobile 2.
In the example presented in the figures, the adjustment screw 20 comprises three hooking clips 22 which are distributed regularly around the cylinder of the adjustment screw 20, each clip having a width corresponding to an arc of circle of between approximately 30 ° and 60 ° (for example of the order of 45 °). The fact of having three regularly distributed hooking clips 22 contributes in particular to the correct centering of the adjusting screw 20 relative to the mobile electrode 2. The width is chosen so that the clips 22 are sufficiently elastic to fit into throat 4 but nevertheless sufficiently resistant. One could obviously choose for this hooking device a different number of clips and / or a different width of clip which are also suitable. The hanging device therefore provides a simple solution for:
  • easily carry out the assembly and assembly of the actuation system with the vacuum interrupter thanks to the elasticity of the clips 22 which makes it possible to insert them very quickly into the groove 4 during assembly, and
  • secure the adjustment screw 20 and the movable electrode 2 only in a translational movement without constraining them in rotation, because the ends of the clips 22 can move in rotation in the groove 4. Therefore a rotational movement of the adjustment screw 20 is not transmitted to the mobile electrode 2.

Préférentiellement, l'extrémité libre 3 de l'électrode mobile 2 a une forme arrondie, par exemple de type semi-sphérique, de façon à éviter des arêtes qui pourraient générer des problèmes diélectriques.Preferably, the free end 3 of the mobile electrode 2 has a rounded shape, for example of the semi-spherical type, so as to avoid edges which could generate dielectric problems.

Le système d'actionnement comporte aussi un déflecteur 30 métallique entourant la tige de l'électrode mobile 2. Il est placé entre l'ampoule à vide 1 et la vis de réglage 20 et est par exemple fixé au support 5 de l'ampoule à vide 1, grâce à deux clips de fixation 32, voir notamment figures 3 et 5. Ce déflecteur 30 possède une forme de disque, dont les extrémités sont arrondies pour éviter des arêtes, et est électriquement connecté à un câble conducteur 33. Un contact électrique de type ressort électrique 31 en forme de tore est coincé à l'intérieur du déflecteur 30. Ce ressort électrique 31 vient s'enrouler autour de l'électrode mobile 2, en amont de la gorge 4, de façon à assurer un bon contact électrique, capable par exemple de faire passer 2000A sous 24kV pendant 20 msec, tout en laissant coulisser l'électrode mobile 2, c'est-à-dire sans provoquer de contrainte en rotation sur l'électrode mobile 2, toujours dans le but d'éviter d'endommager le soufflet 7.The actuation system also includes a metal deflector 30 surrounding the rod of the movable electrode 2. It is placed between the vacuum bulb 1 and the adjustment screw 20 and is for example fixed to the support 5 of the bulb. vacuum 1, thanks to two fixing clips 32, see in particular Figures 3 and 5 . This deflector 30 has a disc shape, the ends of which are rounded to avoid edges, and is electrically connected to a conductive cable 33. An electrical contact of the electrical spring type 31 in the shape of a torus is trapped inside the deflector 30 This electric spring 31 is wound around the mobile electrode 2, upstream of the groove 4, so as to ensure good electrical contact, capable for example of passing 2000A at 24kV for 20 msec, while allowing it to slide. the movable electrode 2, that is to say without causing rotational stress on the movable electrode 2, always in order to avoid damaging the bellows 7.

Le déflecteur 30 est une sorte d'écran qui a pour but d'atténuer les champs électriques dans cette zone de façon à protéger diélectriquement le ressort électrique et les parois de l'ampoule à vide. Il sert aussi à assurer, grâce au ressort électrique 31, la connexion électrique entre l'électrode mobile 2 et le câble conducteur 33 lui-même relié au contact mobile principal de l'appareil électrique.The deflector 30 is a kind of screen which aims to attenuate the electric fields in this area so as to dielectrically protect the electric spring and the walls of the vacuum interrupter. It also serves to ensure, thanks to the electric spring 31, the electrical connection between the movable electrode 2 and the conductive cable 33 itself connected to the main movable contact of the electrical appliance.

Par ailleurs, le système d'actionnement comporte un moyen de blocage 9 pour empêcher ou limiter la rotation de la vis de réglage 20, de façon à ce que la rotation de l'écrou de réglage 10 n'entraîne pas celle de la vis 20. Diverses solutions sont envisageables pour un tel moyen de blocage. Une solution très simple, présentée dans le mode de réalisation des figures, consiste en un pion 9 sortant du support isolant 5 de l'ampoule à vide 1 et traversant le déflecteur 30, à travers un orifice aménagé dans le déflecteur 30. Ce pion 9 est conçu pour venir s'appuyer sur un rebord 23 d'un des clips d'accrochage 22 lorsque la vis de réglage 20 est montée sur l'électrode mobile 2, empêchant donc celle-ci de tourner dans un sens. Dans l'autre sens, la rotation de la vis de réglage 20 est aussi limitée dès que le pion 9 rentre en contact avec le rebord d'un autre clip d'accrochage 22 adjacent. D'autres moyens de blocage 9 seraient facilement envisageables.Furthermore, the actuation system comprises a locking means 9 to prevent or limit the rotation of the adjustment screw 20, so that the rotation of the adjustment nut 10 does not cause that of the screw 20 Various solutions can be envisaged for such a blocking means. A very simple solution, presented in the embodiment of the figures, consists of a pin 9 emerging from the insulating support 5 of the vacuum interrupter 1 and passing through the deflector 30, through an orifice arranged in the deflector 30. This pin 9 is designed to come to bear on a flange 23 of one of the fastening clips 22 when the adjustment screw 20 is mounted on the mobile electrode 2, thus preventing the latter from rotating in one direction. In the other direction, the rotation of the adjustment screw 20 is also limited as soon as the pin 9 comes into contact with the flange of another adjacent hooking clip 22. Other locking means 9 would be easily conceivable.

Enfin, le système d'actionnement comporte une bague 12 amovible permettant de figer la position de l'écrou de réglage 10 par rapport à l'électrode mobile 2, une fois le réglage effectué (voir figure 1). Cette bague 12 est introduite dans deux avancées latérales 18 s'étendant de part et d'autre de l'anneau 16. La bague 12 peut s'encliqueter facilement dans les avancées 18 pour qu'elle soit maintenue en position de blocage une fois le réglage effectué, et peut également se retirer facilement lorsqu'un opérateur veut ajuster la position de l'écrou de réglage 10.Finally, the actuation system comprises a removable ring 12 making it possible to freeze the position of the adjustment nut 10 relative to the mobile electrode 2, once the adjustment has been made (see figure 1 ). This ring 12 is introduced into two lateral projections 18 extending on either side of the ring 16. The ring 12 can easily snap into the projections 18 so that it is held in the locking position once the adjustment made, and can also be easily removed when an operator wants to adjust the position of the adjustment nut 10.

Une fois la bague 12 encliquetée, le blocage de l'écrou de réglage 10 est assuré par des encoches dans la bague 12 qui coopèrent avec des dents 13 de l'écrou de réglage 10 positionnées autour de sa périphérie extérieure pour empêcher la rotation de l'écrou 10. Le nombre de dents/encoches déterminent la finesse de l'angle de réglage possible de l'écrou de réglage 10 par rapport à l'électrode mobile 2.Once the ring 12 has been snapped on, the adjustment nut 10 is locked by notches in the ring 12 which cooperate with teeth 13 of the adjustment nut 10 positioned around its outer periphery to prevent rotation of the nut 10. The number of teeth / notches determine the fineness of the possible adjustment angle of the adjustment nut 10 relative to the movable electrode 2.

Pour pouvoir tourner plus facilement l'écrou de réglage 10 lors du réglage, celui-ci possède optionnellement à son extrémité une forme qui permet de le manipuler avec une clé ou un outil, telle qu'une forme hexagonale dans l'exemple de la figure 1.To be able to more easily turn the adjusting nut 10 during the adjustment, it optionally has at its end a shape which allows it to be manipulated with a wrench or a tool, such as a hexagonal shape in the example of the figure 1 .

Dans le cas d'un appareil de connexion électrique multiphases (par exemple triphasé) ayant donc un interrupteur principal pour chacune des phases, l'appareil comporte préférentiellement une ampoule à vide en dérivation de chaque interrupteur principal et donc un système d'actionnement de l'ampoule à vide pour chaque phase, conforme à l'invention. Dans un tel appareil, le mécanisme d'ouverture qui agit sur les systèmes d'actionnement des ampoules à vide peut cependant être commun à toutes les phases de l'appareil.In the case of a multi-phase electrical connection device (for example three-phase) therefore having a main switch for each of the phases, the device preferably comprises a vacuum interrupter bypassing each main switch and therefore an actuation system for the 'vacuum interrupter for each phase, according to the invention. In such an apparatus, the opening mechanism which acts on the actuation systems of the vacuum ampoules can however be common to all the phases of the apparatus.

Claims (10)

Système d'actionnement d'une ampoule à vide (1) d'un appareil électrique, l'ampoule à vide comprenant une électrode fixe et une électrode qui est mobile (2) selon un axe longitudinal (X) entre une position fermée dans laquelle les deux électrodes sont en contact l'une avec l'autre et une position ouverte dans laquelle les deux électrodes sont séparées, le système d'actionnement comprenant un écrou de réglage (10) qui est mobile en rotation autour de l'axe longitudinal (X) et qui est entraîné par un dispositif d'entraînement (15, 16, 17) pour effectuer un mouvement d'ouverture de l'électrode mobile (2), caractérisé en ce que : - le système d'actionnement comprend une vis de réglage (20) coopérant avec l'écrou de réglage (10) de façon à faire varier l'instant où le dispositif d'entraînement entraîne l'électrode mobile (2), - l'électrode mobile (2) est solidaire de la vis de réglage (20) en translation selon l'axe longitudinal (X), mais est libre en rotation par rapport à la vis de réglage (20), - la vis de réglage (20) est limitée en rotation par un moyen de blocage (9). System for actuating a vacuum interrupter (1) of an electrical appliance, the vacuum interrupter comprising a fixed electrode and an electrode which is movable (2) along a longitudinal axis (X) between a closed position in which the two electrodes are in contact with each other and an open position in which the two electrodes are separated, the actuation system comprising an adjustment nut (10) which is rotatable around the longitudinal axis ( X) and which is driven by a drive device (15, 16, 17) to effect an opening movement of the mobile electrode (2), characterized in that : the actuation system comprises an adjustment screw (20) cooperating with the adjustment nut (10) so as to vary the instant when the drive device drives the mobile electrode (2), the mobile electrode (2) is integral with the adjustment screw (20) in translation along the longitudinal axis (X), but is free to rotate relative to the adjustment screw (20), - the adjusting screw (20) is limited in rotation by a locking means (9). Système d'actionnement selon la revendication 1, caractérisé en ce que l'électrode mobile (2) comporte une gorge (4) transversale qui s'étend autour de l'électrode mobile (2) et la vis de réglage (20) comporte un dispositif d'accrochage (22) qui vient s'insérer dans la gorge (4).Actuation system according to claim 1, characterized in that the movable electrode (2) has a transverse groove (4) which extends around the movable electrode (2) and the adjusting screw (20) has a attachment device (22) which is inserted into the groove (4). Système d'actionnement selon la revendication précédente, caractérisé en ce que le dispositif d'accrochage comporte plusieurs clips d'accrochage (22) dont les extrémités viennent s'insérer dans la gorge (4).Actuation system according to the preceding claim, characterized in that the attachment device comprises several attachment clips (22) whose ends are inserted into the groove (4). Système d'actionnement selon la revendication précédente, caractérisé en ce que le moyen de blocage comprend un pion (9) qui vient bloquer un des clips d'accrochage (22) en rotation.Actuation system according to the preceding claim, characterized in that the locking means comprises a pin (9) which locks one of the hooking clips (22) in rotation. Système d'actionnement selon la revendication 1, caractérisé en ce qu'il comporte un déflecteur (30) qui est placé entre l'ampoule à vide (1) et la vis de réglage (20), et qui comprend un contact électrique de type ressort électrique (31) connecté électriquement à l'électrode mobile (2), l'électrode mobile pouvant coulisser par rapport au ressort électrique.Actuation system according to claim 1, characterized in that it comprises a deflector (30) which is placed between the vacuum interrupter (1) and the adjusting screw (20), and which comprises an electrical contact of the type electric spring (31) electrically connected to the mobile electrode (2), the mobile electrode being able to slide relative to the electric spring. Système d'actionnement selon la revendication précédente, caractérisé en ce que le déflecteur (30) est fixé à l'ampoule à vide (1) par des clips de fixation (32) et est connecté à un conducteur d'alimentation extérieur (33).Actuation system according to the preceding claim, characterized in that the deflector (30) is fixed to the vacuum interrupter (1) by fixing clips (32) and is connected to an external supply conductor (33) . Système d'actionnement selon les revendications 4 et 6, caractérisé en ce que le pion (9) est fixé à un support (5) de l'ampoule à vide (1) et traverse le déflecteur (30).Actuation system according to Claims 4 and 6, characterized in that the pin (9) is fixed to a support (5) of the vacuum interrupter (1) and passes through the deflector (30). Système d'actionnement selon la revendication 1, caractérisé en ce que l'électrode mobile (2) comporte une extrémité arrondie (3).Actuation system according to claim 1, characterized in that the movable electrode (2) has a rounded end (3). Système d'actionnement selon la revendication 1, caractérisé en ce que la vis de réglage (20) comporte un filetage externe (21) coopérant avec un filetage interne de l'écrou de réglage (10).Actuation system according to claim 1, characterized in that the adjustment screw (20) has an external thread (21) cooperating with an internal thread of the adjustment nut (10). Appareil électrique doté d'un interrupteur principal de phase et d'une ampoule à vide (1) placée en dérivation de l'interrupteur principal de phase, caractérisé en ce que l'appareil électrique comporte au moins un système d'actionnement de l'ampoule à vide selon l'une des revendications précédentes.Electric device with a main phase switch and a vacuum interrupter (1) placed as a bypass of the main phase switch, characterized in that the electric device has at least one actuation system for the vacuum interrupter according to one of the preceding claims.
EP19200678.1A 2018-12-04 2019-10-01 Operating system for a vacuum bulb Active EP3664118B1 (en)

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EP2182536A1 (en) 2008-10-29 2010-05-05 Areva T&D Sas Current switch on an electric line comprising a vacuum cartridge
EP3300097A1 (en) 2016-09-23 2018-03-28 Schneider Electric Industries SAS Actuation system of a vacuum bottle

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FR3089342A1 (en) 2020-06-05
US20200176205A1 (en) 2020-06-04
ES2934835T3 (en) 2023-02-27
US10879024B2 (en) 2020-12-29
EP3664118B1 (en) 2022-11-30
CN111276364A (en) 2020-06-12
FR3089342B1 (en) 2021-09-17

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