WO2009118358A1 - Electric cut-off device with augmented visibility - Google Patents

Electric cut-off device with augmented visibility Download PDF

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Publication number
WO2009118358A1
WO2009118358A1 PCT/EP2009/053544 EP2009053544W WO2009118358A1 WO 2009118358 A1 WO2009118358 A1 WO 2009118358A1 EP 2009053544 W EP2009053544 W EP 2009053544W WO 2009118358 A1 WO2009118358 A1 WO 2009118358A1
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WO
WIPO (PCT)
Prior art keywords
housing
electrical
mirror
face
devices
Prior art date
Application number
PCT/EP2009/053544
Other languages
French (fr)
Inventor
Paul Coquaz
François CHEREAU
Original Assignee
Pommier
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 Pommier filed Critical Pommier
Priority to EP09724450.3A priority Critical patent/EP2272074B1/en
Publication of WO2009118358A1 publication Critical patent/WO2009118358A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H2009/0292—Transparent window or opening, e.g. for allowing visual inspection of contact position or contact condition
    • 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
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices

Definitions

  • the present invention relates to the field of electrical breaking devices for medium or high voltage. Many electrical cut-off devices have already been proposed for medium and high voltage.
  • Most of the devices proposed for this purpose comprise a housing which houses electrical breaking means, most often three-phase, and sealed bushings for connecting the internal electrical breaking means to the housing and external arrival and departure lines.
  • the present invention applies in particular, but not exclusively, to the electrical cut-off device described in EP-A-0 874 380.
  • the electrical cut-off devices heretofore proposed generally give overall satisfaction.
  • the present invention now aims to propose new means for improving the existing electrical breaking devices.
  • an electrical breaking device for medium or high voltage comprising a housing which houses electrical cut-off devices, characterized in that it comprises at least one of its walls, at least one porthole formed by a recess or in optically transparent material, associated with a mirror oriented to allow an observation of the electrical cut-off devices located inside the housing, through the window, from a front face of the housing.
  • front face of the housing means the face by which the user accesses for maintenance or verification operations.
  • FIG. schematic perspective view of an electrical breaking device according to a possible embodiment of the present invention
  • FIG. 2 shows a schematic cross-sectional view of a particular embodiment of the electric breaking device according to the present invention.
  • an electrical breaking device comprises a housing 10 which houses electrical cut-off devices and which comprises bushings, as shown diagrammatically under the reference 12, to allow a connection between the electrical cut-off devices internal to the housing 10 and the electrical lines of arrival and departure.
  • the electrical breaking means internal to the housing 10 may be the subject of many embodiments.
  • the housing 10 is preferably formed of two complementary shells 14, 16 assembled by any suitable means, with seal 17 interposed.
  • the shells 14, 16 define in combination an internal chamber 20 in which are placed the electrical breaking means.
  • the chamber 20 is typically at least partially cylindrical in revolution about an axis 0-0 parallel to the plane of joint of the two shells 14, 16.
  • the shells 14, 16 support two electrically conductive fixed contacts 30, 40 passing through the shells to be accessible on the one hand outside the casing 10 for electrical connection, and on the other hand on the inside of the casing. the room 20.
  • the two fixed contacts 30, 40 are diametrically opposite with respect to the 0-0 axis. If necessary, one of the contacts 30 may be extended inside the chamber 20 by a sector 32 of electrically conductive material in the form of a ring sector centered on the axis 0-0.
  • the chamber 20 furthermore houses an electrically conductive rotating rotatable contact 50 capable of rotation about the 0-0 axis.
  • the movable rotary contact 50 is rotated by any appropriate means. It is formed of a rectilinear bar which extends according to a diameter with respect to the 0-0 axis.
  • the rotatable movable contact 50 is thus displaced between at least two positions: a closed position in which the rotatable movable contact provides a connection between the fixed contacts 30, 40 and an open position in which the movable contact 50 is separated from the at least one of the contacts 30, 40 and thus opens the electrical circuit between them.
  • the fixed contacts 30, 40 are formed of knives while the cooperating ends of the rotary movable contact 50 are formed of complementary clamps.
  • the reverse arrangement may, however, be retained.
  • provision may be made for fixed contacts 30, 40 in the form of clamps and the cooperating ends of the rotary movable contact 50 in the form of knives.
  • the electrical breaking device comprises magnetic field sources 60 adapted to develop the electric arc, during opening, in an axial direction, that is to say parallel to the axis 0-0 of rotation of the rotary contact 50.
  • the magnetic sources 60 have a radial field orientation with reference to the axis 0-0.
  • the sources 60 are preferably formed of magnets. Alternatively, they may however be formed electromagnetic coils electrically powered at least during the opening phase of the contacts.
  • the magnets 60 are preferably housed in the shells 14, 16 close to the fixed contacts 30, 40, that is to say opposite the zone in which the bow, when opening.
  • the magnets 60 can be flush with the internal surface of the chamber 20, or protrude internally with respect to this surface in the chamber 20.
  • the magnets 60 may be placed on the outside of the shells 14, 16. This arrangement facilitates the maintenance operations and possible replacement of these magnets 60, or adjustment if necessary.
  • the invention is preferably used in the form of three axially juxtaposed chambers corresponding to the three phases of a three-phase electrical distribution network.
  • the required distances between power lines of a three-phase network are compatible with the axial dimensions required to allow the development of the arc thanks to the magnets 60.
  • These three chambers can be formed of a single housing or if necessary of three juxtaposed boxes.
  • one of the shells 16 further supports a second fixed contact 42 connected to the ground.
  • the rotating movable contact 50 reaches the contact 42, it connects the sector 32 and the contact 42 and therefore allows the fixed contact 30 connected to the sector 32 to be connected to the earth.
  • At least one of the faces 11 of the casing 10, made otherwise from optically opaque material comprises at least one window 100 of optically transparent material, associated with a mirror 110 for returning to the front face of the housing 10 an image of the state of the internal electrical contacts.
  • the face 11 is orthogonal to the front face 13.
  • the electrical breaking device being three-phase
  • three portholes 100a, 100b and 100c are provided on the lateral face 11, respectively placed facing the electrical breaking members associated with a respective phase and associated with respective mirrors 110a, 110b and 110c.
  • the mirrors 110 are located outside the housing 10. They are carried by any appropriate structure. Their orientation is adjusted, or even adjustable, so that an observer located at the front of the housing, in this case on an axial end of the housing 10 relative to the axis 0-0, can easily observe the state of the internal electrical contacts to the housing 10 by observing the image returned by the mirror 110.
  • the mirrors located outside the housing make it possible to provide a visualization of the cut-off devices.
  • a user is symbolized by the eye 18, towards which the image of the electrical cut-off members is returned by the mirrors HOa, HOb and HOc.
  • the port or windows may be provided on the rear face of the housing 10 opposite to the face through which the maintenance personnel accesses, by associating this window provided on the rear face with a respective primary associated mirror in furthermore, typically at the upper face of the housing, an additional secondary mirror returning operating in the manner of a periscope in cooperation with the primary mirror or mirrors to return the image of the electrical contacts to the front face.
  • the present invention makes it possible in particular to quickly observe the state of the electrical contacts without requiring any disassembly of the housing.
  • the present invention also provides an economical and reliable solution.
  • the present invention leaves full freedom as to the implantation of the electrical cut-off devices and the mechanical control means inside the casing 10.
  • the present invention makes it possible to particular to avoid any cooling of the atmosphere after an observation, contrary to the requirements of the state of the art when an opening of the housing 10 was hitherto necessary for the observation of the contacts.
  • the present invention is not limited to the particular embodiments which have just been described but extends to any variant within its spirit.
  • the mirrors 110 may comprise a single reflecting plane facet or multiple reflecting plane facets inclined to each other, or even at least one concave or convex portion focusing or diverging depending on the details to be observed.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

The invention relates to an electric cut-off device for medium or high voltage that comprises a housing (10) containing electric cut-off members (30, 40, 50), characterised in that the device comprises, on at least one wall (11) thereof, at least one porthole (100) formed by a cut or made of an optically transparent material, associated with a mirror (110) located outside the housing (10) and oriented so that the electric cut-off members (30, 40, 50) inside the housing (10) can be seen through the porthole (100) from a front surface (13) of the housing.

Description

DISPOSITIF DE COUPURE ELECTRIQUE AVEC VISIBILITE AUGMENTEE ELECTRIC CUTTING DEVICE WITH INCREASED VISIBILITY
La présente invention concerne le domaine des dispositifs de coupure électrique pour moyenne ou haute tension. On a déjà proposé de nombreux dispositifs de coupure électrique pour moyenne et haute tension.The present invention relates to the field of electrical breaking devices for medium or high voltage. Many electrical cut-off devices have already been proposed for medium and high voltage.
La plupart des dispositifs proposés à cette fin comprennent un boîtier qui loge des moyens de coupure électrique, le plus souvent triphasés, et des traversées étanches permettant de relier les moyens de coupure électrique internes au boîtier et des lignes d'arrivée et de départ externes.Most of the devices proposed for this purpose comprise a housing which houses electrical breaking means, most often three-phase, and sealed bushings for connecting the internal electrical breaking means to the housing and external arrival and departure lines.
La présente invention s'applique en particulier, mais non exclusivement, au dispositif de coupure électrique décrit dans le document EP-A-O 874 380. Les dispositifs de coupure électrique jusqu'ici proposés donnent généralement globalement satisfaction.The present invention applies in particular, but not exclusively, to the electrical cut-off device described in EP-A-0 874 380. The electrical cut-off devices heretofore proposed generally give overall satisfaction.
Cependant, de nombreux utilisateurs formulent fréquemment la demande de pouvoir opérer un contrôle visuel direct de l'état des organes de coupure électrique, c'est-à-dire un contrôle permettant à la fois d'identifier la position ouverte ou fermée des organes de coupure, voire une position de mise à la terre et l'état physique de ceux-ci, notamment quant à de possibles détériorations suite à étincelage. Bien évidemment un tel contrôle peut concerner d'autres aspects ou caractéristiques des organes de coupures. Pour tenter de résoudre le problème ainsi posé, il est possible en théorie d'incorporer un panneau optiquement transparent dans la face avant du boîtier directement accessible. Cependant, cette solution ne peut généralement pas être retenue en pratique en raison des contraintes d'encombrement et d'installation interne au boîtier, qui exigent le plus souvent d'associer aux organes de coupure électrique proprement dits des moyens de commande mécanique qui masquent l'observation directe des organes de coupure électrique. De plus, la paroi sur laquelle est situé le panneau optiquement transparent n'est pas toujours visuellement accessible par les utilisateurs selon l'agencement du boîtier, ce qui empêche une observation directe des organes de coupure électrique à travers le panneau optiquement transparent du boîtier.However, many users frequently make the request to be able to perform a direct visual inspection of the state of the electrical cut-off devices, that is to say a control that makes it possible both to identify the open or closed position of the switching devices. cutoff, even a grounding position and the physical state thereof, in particular as to possible deterioration following sparking. Obviously such a control may concern other aspects or characteristics of the cutters. In an attempt to solve the problem thus posed, it is theoretically possible to incorporate an optically transparent panel in the front face of the directly accessible housing. However, this solution can not generally be retained in practice because of the constraints of space and internal installation to the housing, which most often require to associate the actual electrical cutoff devices mechanical control means that mask the direct observation of electrical cut-off devices. In addition, the wall on which the optically transparent panel is located is not always visually accessible by the users according to the arrangement of the housing, which prevents direct observation of the electrical cut-off devices through the optically transparent panel of the housing.
Dans la situation actuelle, les utilisateurs sont donc contraints, pour vérifier l'état des contacts électriques, notamment quant à leur possible détérioration, d'ouvrir le boîtier, avec toutes les contraintes que cela entraînent, notamment quant au contrôle de l'atmosphère de confinement interne au boîtier, en particulier quand celui-ci est réalisé sous atmosphère de gaz neutre. Cela entraîne également des problèmes concernant la sécurité de l'utilisateur dû notamment à un risque de contact direct ou indirect avec des surfaces actives des organes de coupure électrique, sauf à mettre en œuvre une procédure complexe et contraignante de mise hors tension préalable du boîtier.In the current situation, the users are therefore forced to check the condition of the electrical contacts, in particular as to their possible deterioration, to open the housing, with all the constraints that this entails, particularly as regards the control of the atmosphere of internal confinement to the housing, especially when it is carried out under a neutral gas atmosphere. This also causes problems with regard to the safety of the user due in particular to a risk of direct or indirect contact with active surfaces of the electrical cut-off devices, except to implement a complex and restrictive procedure of prior disconnection of the housing.
Quant au contrôle de l'état, ouvert ou fermé des organes de coupure électrique, voire de l'état mise à la terre, celui-ci est opéré jusqu'ici à l'aide de transducteurs ou capteurs mécaniques ou physiques additionnels associés aux organes de coupure électrique et permettant de transmettre à l'extérieur du boîtier un signal représentatif de l'état de ceux-ci. Malheureusement un tel signal ne permet pas de transmettre un signal exhaustif concernant les organes de coupure électrique (notamment pour une vérification de détérioration).As for the control of the state, open or closed of the electrical cut-off devices, or even of the grounded state, this one is operated up to now with the help of transducers or additional mechanical or physical sensors associated with the organs. electrical breaking and for transmitting to the outside of the housing a signal representative of the state thereof. Unfortunately, such a signal does not make it possible to transmit a complete signal concerning the electrical cut-off devices (in particular for a deterioration check).
Face à la situation précitée, la présente invention a maintenant pour but de proposer de nouveaux moyens permettant de perfectionner les dispositifs de coupure électrique existants.In view of the aforementioned situation, the present invention now aims to propose new means for improving the existing electrical breaking devices.
Ce but est atteint dans le cadre de la présente invention, grâce à un dispositif de coupure électrique pour moyenne ou haute tension comprenant un boîtier qui loge des organes de coupure électrique, caractérisé par le fait qu'il comprend sur l'une au moins de ses parois, au moins un hublot formé par un évidement ou en matériau optiquement transparent, associé à un miroir orienté pour permettre une observation des organes de coupure électrique situés à l'intérieur du boîtier, à travers le hublot, à partir d'une face avant du boîtier.This object is achieved in the context of the present invention, by means of an electrical breaking device for medium or high voltage comprising a housing which houses electrical cut-off devices, characterized in that it comprises at least one of its walls, at least one porthole formed by a recess or in optically transparent material, associated with a mirror oriented to allow an observation of the electrical cut-off devices located inside the housing, through the window, from a front face of the housing.
Dans le cadre de la présente invention, on entend par « face avant du boîtier » la face par laquelle l'utilisateur accède pour des opérations de maintenance ou de vérification.In the context of the present invention, the term "front face of the housing" means the face by which the user accesses for maintenance or verification operations.
D'autres caractéristiques, buts et avantages de la présente invention apparaîtront à la lecture de la description détaillée qui va suivre, et au regard des figures annexées, données à titre d'exemples non limitatifs et sur lesquelles : - la figure 1 représente une vue schématique en perspective d'un dispositif de coupure électrique conforme à une réalisation possible de la présente invention, etOther characteristics, objects and advantages of the present invention will appear on reading the following detailed description, and with reference to the appended figures, given by way of non-limiting examples and in which: FIG. schematic perspective view of an electrical breaking device according to a possible embodiment of the present invention, and
- la figure 2 représente une vue schématique en coupe transversale d'un mode de réalisation particulier du dispositif de coupure électrique conforme à la présente invention.- Figure 2 shows a schematic cross-sectional view of a particular embodiment of the electric breaking device according to the present invention.
En référence à la figure 1 annexée, un dispositif de coupure électrique selon une réalisation possible de la présente invention, comprend un boîtier 10 qui loge des organes de coupure électrique et qui comprend des traversées, telles que schématisées sous la référence 12, pour permettre une liaison entre les organes de coupure électrique internes au boîtier 10 et des lignes électriques d'arrivée et de départ.With reference to the appended FIG. 1, an electrical breaking device according to a possible embodiment of the present invention comprises a housing 10 which houses electrical cut-off devices and which comprises bushings, as shown diagrammatically under the reference 12, to allow a connection between the electrical cut-off devices internal to the housing 10 and the electrical lines of arrival and departure.
Les moyens de coupure électrique internes au boîtier 10 peuvent faire l'objet de nombreux modes de réalisation.The electrical breaking means internal to the housing 10 may be the subject of many embodiments.
Ils ne seront donc pas décrits dans le détail. Cependant, selon la présente invention, ces moyens de coupure électrique sont de préférence conformes à l'enseignement du document EP-A-O 874 380.They will not be described in detail. However, according to the present invention, these electrical breaking means are preferably in accordance with the teaching of EP-A-0 874 380.
Ainsi, comme illustré sur la figure 2, selon une réalisation possible de la présente invention, le boîtier 10 est de préférence formé de deux coquilles complémentaires 14, 16 assemblées par tout moyen approprié, avec joint d'étanchéité 17 intercalé.Thus, as illustrated in Figure 2, according to a possible embodiment of the present invention, the housing 10 is preferably formed of two complementary shells 14, 16 assembled by any suitable means, with seal 17 interposed.
Ces coquilles 14, 16 définissent en combinaison une chambre interne 20 dans laquelle sont placés les moyens de coupure électrique. La chambre 20 est typiquement au moins partiellement cylindrique de révolution autour d'un axe 0-0 parallèle au plan de joint des deux coquilles 14, 16.These shells 14, 16 define in combination an internal chamber 20 in which are placed the electrical breaking means. The chamber 20 is typically at least partially cylindrical in revolution about an axis 0-0 parallel to the plane of joint of the two shells 14, 16.
Les coquilles 14, 16 supportent deux contacts fixes 30, 40 électriquement conducteurs traversant les coquilles pour être accessibles, d'une part à l'extérieur du boîtier 10 en vue d'un raccordement électrique, et d'autre part sur l'intérieur de la chambre 20.The shells 14, 16 support two electrically conductive fixed contacts 30, 40 passing through the shells to be accessible on the one hand outside the casing 10 for electrical connection, and on the other hand on the inside of the casing. the room 20.
A l'intérieur de la chambre 20, les deux contacts fixes 30, 40 sont diamétralement opposés par rapport à l'axe 0-0. Le cas échéant, l'un des contacts 30 peut être prolongé à l'intérieur de la chambre 20 par un secteur 32 en matériau électriquement conducteur en forme de secteur de couronne centré sur l'axe 0-0.Inside the chamber 20, the two fixed contacts 30, 40 are diametrically opposite with respect to the 0-0 axis. If necessary, one of the contacts 30 may be extended inside the chamber 20 by a sector 32 of electrically conductive material in the form of a ring sector centered on the axis 0-0.
La chambre 20 loge en outre un contact mobile rotatif 50 électriquement conducteur susceptible de rotation autour de l'axe 0-0.The chamber 20 furthermore houses an electrically conductive rotating rotatable contact 50 capable of rotation about the 0-0 axis.
Le contact mobile rotatif 50 est actionné à rotation par tout moyen approprié. Il est formé d'un barreau rectiligne qui s'étend selon un diamètre par rapport à l'axe 0-0.The movable rotary contact 50 is rotated by any appropriate means. It is formed of a rectilinear bar which extends according to a diameter with respect to the 0-0 axis.
Le contact mobile rotatif 50 est déplacé ainsi entre au moins deux positions : une position de fermeture dans laquelle le contact mobile rotatif assure une liaison entre les contacts fixes 30, 40 et une position d'ouverture dans laquelle le contact mobile 50 est séparé de l'un au moins des contacts 30, 40 et ouvre ainsi le circuit électrique entre ces derniers. De préférence, les contacts fixes 30, 40 sont formés de couteaux tandis que les extrémités coopérantes du contact mobile rotatif 50 sont formées de pinces complémentaires. La disposition inverse peut cependant être retenue. Ainsi, on peut prévoir de réaliser des contacts fixes 30, 40 sous forme de pinces et les extrémités coopérantes du contact mobile rotatif 50 sous forme de couteaux.The rotatable movable contact 50 is thus displaced between at least two positions: a closed position in which the rotatable movable contact provides a connection between the fixed contacts 30, 40 and an open position in which the movable contact 50 is separated from the at least one of the contacts 30, 40 and thus opens the electrical circuit between them. Preferably, the fixed contacts 30, 40 are formed of knives while the cooperating ends of the rotary movable contact 50 are formed of complementary clamps. The reverse arrangement may, however, be retained. Thus, provision may be made for fixed contacts 30, 40 in the form of clamps and the cooperating ends of the rotary movable contact 50 in the form of knives.
De préférence, ces éléments 30, 40, 50 sont adaptés pour définir des contacts multiples au niveau de chaque couple 30/50, 40/50. Par ailleurs, de préférence, le dispositif de coupure électrique conforme à l'invention, comprend des sources de champs magnétiques 60 adaptés pour développer l'arc électrique, lors de l'ouverture, dans une direction axiale, c'est-à-dire parallèlement à l'axe 0-0 de rotation du contact rotatif 50. Pour cela, les sources magnétiques 60 présentent une orientation de champ radial en référence à l'axe 0-0. Les sources 60 sont formées de préférence d'aimants. En variante, elles peuvent cependant être formées de bobines électromagnétiques alimentées électriquement au moins lors de la phase d'ouverture des contacts. Comme on le voit sur la figure 2 annexée, de préférence, les aimants 60 sont logés dans les coquilles 14, 16 à proximité des contacts fixes 30, 40, c'est-à-dire en regard de la zone dans laquelle apparaît l'arc, lors de l'ouverture.Preferably, these elements 30, 40, 50 are adapted to define multiple contacts at each pair 30/50, 40/50. Furthermore, preferably, the electrical breaking device according to the invention comprises magnetic field sources 60 adapted to develop the electric arc, during opening, in an axial direction, that is to say parallel to the axis 0-0 of rotation of the rotary contact 50. For this, the magnetic sources 60 have a radial field orientation with reference to the axis 0-0. The sources 60 are preferably formed of magnets. Alternatively, they may however be formed electromagnetic coils electrically powered at least during the opening phase of the contacts. As can be seen in the appended FIG. 2, the magnets 60 are preferably housed in the shells 14, 16 close to the fixed contacts 30, 40, that is to say opposite the zone in which the bow, when opening.
Avantageusement, les aimants 60 peuvent affleurer la surface interne de la chambre 20, ou faire saillie intérieurement par rapport à cette surface dans la chambre 20.Advantageously, the magnets 60 can be flush with the internal surface of the chamber 20, or protrude internally with respect to this surface in the chamber 20.
Selon encore une autre variante, les aimants 60 peuvent être placés sur l'extérieur des coquilles 14, 16. Cette disposition facilite les opérations de maintenance et de remplacement éventuelles de ces aimants 60, voire de réglage si nécessaire.According to another variant, the magnets 60 may be placed on the outside of the shells 14, 16. This arrangement facilitates the maintenance operations and possible replacement of these magnets 60, or adjustment if necessary.
Avantageusement, l'invention est utilisée de préférence sous forme de trois chambres juxtaposées axialement correspondant aux trois phases d'un réseau de distribution électrique triphasé. Les distances requises entre lignes d'alimentation d'un réseau triphasé sont compatibles avec les dimensions axiales requises pour autoriser le développement de l'arc grâce aux aimants 60. Ces trois chambres peuvent être formées d'un boîtier unique ou le cas échéant de trois boîtiers juxtaposés.Advantageously, the invention is preferably used in the form of three axially juxtaposed chambers corresponding to the three phases of a three-phase electrical distribution network. The required distances between power lines of a three-phase network are compatible with the axial dimensions required to allow the development of the arc thanks to the magnets 60. These three chambers can be formed of a single housing or if necessary of three juxtaposed boxes.
On notera par ailleurs que dans le cadre de l'invention, bien que cela ne soit pas obligatoire, l'une des coquilles 16 supporte en outre un deuxième contact fixe 42 relié à la terre. Ainsi, lorsque le contact mobile rotatif 50 atteint le contact 42, il relie le secteur 32 et ce contact 42 et permet par conséquent de relier le contact fixe 30 relié au secteur 32, à la terre.Note also that within the scope of the invention, although this is not mandatory, one of the shells 16 further supports a second fixed contact 42 connected to the ground. Thus, when the rotating movable contact 50 reaches the contact 42, it connects the sector 32 and the contact 42 and therefore allows the fixed contact 30 connected to the sector 32 to be connected to the earth.
Plus précisément encore, comme on l'a indiqué précédemment, selon une réalisation de la présente invention, telle qu'illustrée sur la figure 1, l'une au moins des faces 11 du boîtier 10, réalisée par ailleurs en matériau optiquement opaque, comporte au moins un hublot 100 en matériau optiquement transparent, associé à un miroir 110 permettant de renvoyer vers la face avant du boîtier 10 une image de l'état des contacts électriques internes. Selon la figure 1, la face 11 est orthogonale la face avant 13.More precisely, as indicated above, according to an embodiment of the present invention, as illustrated in FIG. 1, at least one of the faces 11 of the casing 10, made otherwise from optically opaque material, comprises at least one window 100 of optically transparent material, associated with a mirror 110 for returning to the front face of the housing 10 an image of the state of the internal electrical contacts. According to FIG. 1, the face 11 is orthogonal to the front face 13.
Plus précisément encore, selon le mode de réalisation représenté sur la figure 1, le dispositif de coupure électrique étant triphasé, il est prévu trois hublots 100a, 100b et 100c sur la face latérale 11, placés respectivement en regard des organes de coupure électrique associés à une phase respective et associés à des miroirs 110a, 110b et 110c respectifs.More precisely still, according to the embodiment represented in FIG. 1, the electrical breaking device being three-phase, three portholes 100a, 100b and 100c are provided on the lateral face 11, respectively placed facing the electrical breaking members associated with a respective phase and associated with respective mirrors 110a, 110b and 110c.
Les miroirs 110 sont situés à l'extérieur du boîtier 10. Ils sont portés par toute structure appropriée. Leur orientation est réglée, voire réglable, de sorte qu'un observateur situé au niveau de la face avant du boîtier, en l'espèce sur une extrémité axiale du boîtier 10 par rapport à l'axe 0-0, puisse observer aisément l'état des contacts électriques internes au boîtier 10 en observant l'image renvoyé par le miroir 110.The mirrors 110 are located outside the housing 10. They are carried by any appropriate structure. Their orientation is adjusted, or even adjustable, so that an observer located at the front of the housing, in this case on an axial end of the housing 10 relative to the axis 0-0, can easily observe the state of the internal electrical contacts to the housing 10 by observing the image returned by the mirror 110.
Ainsi, dans le cas où la paroi sur laquelle sont situés les hublots du boîtier est difficilement visuellement accessible pour l'utilisateur, les miroirs situés à l'extérieur du boîtier permettent d'offrir une visualisation des organes de coupures.Thus, in the case where the wall on which the portholes of the housing are located is hardly visually accessible for the user, the mirrors located outside the housing make it possible to provide a visualization of the cut-off devices.
Sur la figure, un utilisateur est symbolisé par l'œil 18, vers lequel l'image des organes de coupure électrique est renvoyée par les miroirs HOa, HOb et HOc.In the figure, a user is symbolized by the eye 18, towards which the image of the electrical cut-off members is returned by the mirrors HOa, HOb and HOc.
Selon une variante de réalisation, il peut être prévu un hublot unique sur la face 11, sous forme d'un hublot allongé. Selon encore une autre variante de réalisation, on peut prévoir le ou les hublots sur la face arrière du boîtier 10 opposé à la face par laquelle accède le personnel de maintenance, en associant ce hublot prévu sur la face arrière à un miroir respectif associé primaire en disposant par ailleurs, typiquement au niveau de la face supérieure du boîtier, un miroir de renvoi secondaire additionnel fonctionnant à la façon d'un périscope en coopération avec le ou les miroirs primaires pour renvoyer l'image des contacts électriques vers la face avant.According to an alternative embodiment, it can be provided a single port on the face 11, in the form of an elongate porthole. According to yet another variant embodiment, the port or windows may be provided on the rear face of the housing 10 opposite to the face through which the maintenance personnel accesses, by associating this window provided on the rear face with a respective primary associated mirror in furthermore, typically at the upper face of the housing, an additional secondary mirror returning operating in the manner of a periscope in cooperation with the primary mirror or mirrors to return the image of the electrical contacts to the front face.
L'homme de l'art comprendra que la solution proposée dans le cadre de la présente invention, offre de nombreux avantages par rapport à l'art antérieur.Those skilled in the art will understand that the solution proposed in the context of the present invention offers many advantages over the prior art.
La présente invention permet en particulier d'observer aisément rapidement l'état des contacts électriques sans exiger le moindre démontage du boîtier. La présente invention offre par ailleurs une solution économique et fiable.The present invention makes it possible in particular to quickly observe the state of the electrical contacts without requiring any disassembly of the housing. The present invention also provides an economical and reliable solution.
Par ailleurs, la présente invention laisse toute liberté quant à l'implantation des organes de coupure électrique et les moyens de commande mécanique à l'intérieur du boîtier 10. Dans le cadre d'un boîtier 10 sous atmosphère contrôlé, la présente invention permet en particulier d'éviter tout rafraîchissement de l'atmosphère après une observation, contrairement aux exigences de l'état de la technique lorsqu'une ouverture du boîtier 10 s'avérait jusqu'ici nécessaire pour l'observation des contacts. Bien entendu la présente invention n'est pas limitée aux modes de réalisation particuliers qui viennent d'être décrits mais s'étend à toute variante conforme à son esprit.Moreover, the present invention leaves full freedom as to the implantation of the electrical cut-off devices and the mechanical control means inside the casing 10. In the context of a controlled atmosphere casing 10, the present invention makes it possible to particular to avoid any cooling of the atmosphere after an observation, contrary to the requirements of the state of the art when an opening of the housing 10 was hitherto necessary for the observation of the contacts. Of course, the present invention is not limited to the particular embodiments which have just been described but extends to any variant within its spirit.
Les miroirs 110 peuvent comporter une facette plane unique réfléchissante ou de multiples facettes planes réfléchissantes inclinées entre elles, voire au moins une portion concave ou convexe focalisante ou divergente selon les détails que l'on souhaite observer. The mirrors 110 may comprise a single reflecting plane facet or multiple reflecting plane facets inclined to each other, or even at least one concave or convex portion focusing or diverging depending on the details to be observed.

Claims

REVENDICATIONS
1. Dispositif de coupure électrique pour moyenne ou haute tension comprenant un boîtier (10) qui loge des organes de coupure électrique (30, 40, 50), caractérisé par le fait qu'il comprend sur l'une au moins de ses parois (11), au moins un hublot (100) formé par un évidement ou en matériau optiquement transparent, associé à un miroir (110), situé à l'extérieur du boîtier (10) et orienté pour permettre une observation des organes de coupures électriques (30, 40, 50) situés à l'intérieur du boîtier (10), à travers le hublot (100), à partir d'une face avant (13) du boîtier.1. Medium or high voltage electrical breaking device comprising a housing (10) which houses electrical breaking devices (30, 40, 50), characterized in that it comprises on at least one of its walls ( 11), at least one porthole (100) formed by a recess or of optically transparent material, associated with a mirror (110), located outside the housing (10) and oriented to allow observation of the electrical breaking devices ( 30, 40, 50) located inside the housing (10), through the window (100), from a front face (13) of the housing.
2. Dispositif selon la revendication 1, caractérisé par le fait qu'il comprend trois hublots (100a, 100b, 100c) sur une face commune.2. Device according to claim 1, characterized in that it comprises three portholes (100a, 100b, 100c) on a common face.
3. Dispositif selon l'une des revendications 1 ou 2, caractérisé par le fait qu'il comprend trois hublots (100a, 100b, 100c) associés à des miroirs respectifs (110a, 110b, 110c).3. Device according to one of claims 1 or 2, characterized in that it comprises three portholes (100a, 100b, 100c) associated with respective mirrors (110a, 110b, 110c).
4. Dispositif selon la revendication 1, caractérisé par le fait qu'il comprend un hublot unique allongé en regard de moyens de coupure électrique triphasés. 4. Device according to claim 1, characterized in that it comprises a single elongated window facing three-phase electrical breaking means.
5. Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait que le ou les hublot(s) (100) est (sont) placé(s) sur une face (11) orthogonale à la face avant (13) du boîtier.5. Device according to one of claims 1 to 4, characterized in that the or the porthole (s) (100) is (are) placed (s) on a face (11) orthogonal to the front face (13) of the case.
6. Dispositif selon la revendication 4, caractérisé par le fait que le hublot (100) est placé sur la face arrière du boîtier (10) et qu'il est associé à un miroir de renvoi auxiliaire.6. Device according to claim 4, characterized in that the window (100) is placed on the rear face of the housing (10) and is associated with an auxiliary return mirror.
7. Dispositif selon l'une des revendications 1 à 6, caractérisé par le fait qu'il comprend deux contacts fixes (30, 40) accessibles à l'intérieur du boîtier et un contact mobile (50) rotatif autour d'un axe central (0-0) du boîtier (10) et permettant alternativement de relier les deux contacts fixes (30, 40) et de séparer ceux-ci.7. Device according to one of claims 1 to 6, characterized in that it comprises two fixed contacts (30, 40) accessible inside the housing and a movable contact (50) rotatable about a central axis (0-0) of the housing (10) and alternatively to connect the two fixed contacts (30, 40) and separate them.
8. Dispositif selon l'une des revendications 1 à 7, caractérisé par le fait que le ou les miroir(s) (110) est (sont) réglable(s). 8. Device according to one of claims 1 to 7, characterized in that the mirror (s) (110) is (are) adjustable (s).
9. Dispositif selon l'une des revendications 1 à 8, caractérisé par le fait que le ou les miroir(s) (110) est (sont) choisi(s) dans le groupe comprenant : une facette plane unique réfléchissante ou de multiples facettes planes réfléchissantes inclinées entre elles, ou au moins une portion concave ou convexe focalisante ou divergente. 9. Device according to one of claims 1 to 8, characterized in that the mirror (s) (110) is (are) chosen (s) in the group comprising: a single reflective plane facet or multiple facets reflective planes inclined between them, or at least a concave or convex portion focusing or diverging.
PCT/EP2009/053544 2008-03-26 2009-03-25 Electric cut-off device with augmented visibility WO2009118358A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09724450.3A EP2272074B1 (en) 2008-03-26 2009-03-25 Electric cut-off device with augmented visibility

Applications Claiming Priority (2)

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FR0851945 2008-03-26
FR0851945A FR2929442B1 (en) 2008-03-26 2008-03-26 ELECTRIC CUTTING DEVICE WITH INCREASED VISIBILITY

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WO2009118358A1 true WO2009118358A1 (en) 2009-10-01

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EP (1) EP2272074B1 (en)
CN (1) CN101546658A (en)
FR (1) FR2929442B1 (en)
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CN102903552B (en) * 2012-09-12 2016-06-08 厦门联容电控有限公司 Central handle rotation process has the isolator of visual performance
CA3159684A1 (en) 2021-05-21 2022-11-21 G & W Electric Company Status indicator for switchgear

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FR2355365A1 (en) * 1976-06-18 1978-01-13 Simplex Appareils Electric switch system in distribution board - has mirror enabling operator to view position of contacts protected behind barrier
DE8904138U1 (en) * 1989-04-04 1989-10-19 Fritz Driescher Kg Spezialfabrik Fuer Elektrizitaetswerksbedarf Gmbh & Co, 5144 Wegberg, De
US5594610A (en) * 1995-03-14 1997-01-14 Eaton Corporation Pivot-disconnecting circuit breaker
EP0874380A1 (en) * 1997-04-25 1998-10-28 Soule Materiel Electrique Power cut-off device for low and high-tension
WO2005122352A1 (en) * 2004-06-09 2005-12-22 Abb Technology Ag Gas-insulated switchgear comprising an inspection glass for optically detecting the switching position of the switching contacts
EP1796234A1 (en) * 1996-08-29 2007-06-13 S&C ELECTRIC COMPANY Switchgear assembly

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DE1088583B (en) * 1957-03-21 1960-09-08 Felten & Guilleaume Carlswerk High-voltage circuit breaker of low-liquid design
BR8503644A (en) * 1985-08-01 1985-10-15 Lorenzetti Inebrase Sa PORTABLE TOOL FOR OPENING UNDER LOAD OF ELECTRICAL CIRCUITS
FR2618251B1 (en) * 1987-06-25 1989-11-17 Merlin Gerin ROTARY SWITCH WITH MIGRATION CURVE TRACK OF AN ARC ROOT.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355365A1 (en) * 1976-06-18 1978-01-13 Simplex Appareils Electric switch system in distribution board - has mirror enabling operator to view position of contacts protected behind barrier
DE8904138U1 (en) * 1989-04-04 1989-10-19 Fritz Driescher Kg Spezialfabrik Fuer Elektrizitaetswerksbedarf Gmbh & Co, 5144 Wegberg, De
US5594610A (en) * 1995-03-14 1997-01-14 Eaton Corporation Pivot-disconnecting circuit breaker
EP1796234A1 (en) * 1996-08-29 2007-06-13 S&C ELECTRIC COMPANY Switchgear assembly
EP0874380A1 (en) * 1997-04-25 1998-10-28 Soule Materiel Electrique Power cut-off device for low and high-tension
WO2005122352A1 (en) * 2004-06-09 2005-12-22 Abb Technology Ag Gas-insulated switchgear comprising an inspection glass for optically detecting the switching position of the switching contacts

Also Published As

Publication number Publication date
EP2272074A1 (en) 2011-01-12
CN101546658A (en) 2009-09-30
EP2272074B1 (en) 2015-07-29
FR2929442A1 (en) 2009-10-02
RU2010143573A (en) 2012-05-10
FR2929442B1 (en) 2012-12-14

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