EP2545573B1 - Hybrid circuit breaker using switch for restoring to a closure - Google Patents

Hybrid circuit breaker using switch for restoring to a closure Download PDF

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Publication number
EP2545573B1
EP2545573B1 EP11706837.9A EP11706837A EP2545573B1 EP 2545573 B1 EP2545573 B1 EP 2545573B1 EP 11706837 A EP11706837 A EP 11706837A EP 2545573 B1 EP2545573 B1 EP 2545573B1
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EP
European Patent Office
Prior art keywords
rod
movable contact
switch
control rod
control
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Not-in-force
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EP11706837.9A
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German (de)
French (fr)
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EP2545573A1 (en
Inventor
Henry Ardyna
Gwénaël MARQUEZIN
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General Electric Technology GmbH
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Alstom Technology AG
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Publication of EP2545573A1 publication Critical patent/EP2545573A1/en
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Publication of EP2545573B1 publication Critical patent/EP2545573B1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/666Operating arrangements
    • H01H33/6661Combination with other type of switch, e.g. for load break switches
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003Earthing switches
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/04Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121Load break switches
    • H01H33/125Load break switches comprising a separate circuit breaker
    • H01H33/126Load break switches comprising a separate circuit breaker being operated by the distal end of a sectionalising contact arm

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Description

DOMAINE TECHNIQUETECHNICAL AREA

L'invention concerne le domaine des disjoncteurs hybrides haute et moyenne tensions utilisant une chambre de coupure et une ampoule à vide dont les contacts mobiles sont actionnés par une commande unique. Elle concerne en particulier une commande mécanique qui permet une ouverture simultanée de la chambre de coupure et de l'ampoule à vide suivie d'une fermeture de l'ampoule à vide anticipée par rapport à la remise en service de la chambre de coupure.The invention relates to the field of high and medium voltage hybrid circuit breakers using a breaking chamber and a vacuum interrupter whose movable contacts are actuated by a single command. It relates in particular to a mechanical control that allows simultaneous opening of the interrupting chamber and the vacuum ampoule followed by a closure of the advance vacuum bulb with respect to the restarting of the interrupting chamber.

ART ANTÉRIEUR ET PROBLEMES POSESPRIOR ART AND PROBLEMS POSED

Dans ce type de disjoncteurs hybrides, un seul agencement mécanique commande les mouvements des contacts mobiles de chacun des interrupteurs qui suivent leur propre profil de déplacement dans le temps. Ceci permet, entre autre, à l'ampoule à vide d'être protégée lors de l'ouverture de la chambre de coupure.In this type of hybrid circuit breakers, a single mechanical arrangement controls the movements of the moving contacts of each of the switches which follow their own profile of movement in time. This allows, among other things, the vacuum bulb to be protected during the opening of the interrupting chamber.

En référence à la figure 1, on connaît par le document de brevet EP 1 653 491 A2 un tel disjoncteur hybride possèdant une chambre de coupure 10 définissant un axe longitudinal A, A' et, placés perpendiculairement, une ampoule à vide 20 commandée par le même mécanisme mécanique. La commande de l'ensemble se fait par des éléments mécaniques, dont la plupart ne sont pas représentés, fonctionnant selon l'axe longitudinal A, A' de la chambre de coupure 10. Dans une des réalisations de ces éléments mécaniques de commande, se trouve une plaque coulissante 154 qui agit sur un galet 155 monté tournant au bout d'une tige 152, solidaire elle-même d'une tige de commande 23 portant le contact mobile 22 de l'ampoule à vide 20. Une surface inclinée de la plaque coulissante 154 permet d'actionner la tige de commande 23 de l'ampoule à vide pour séparer le contact mobile 22 du contact fixe 21 de l'ampoule à vide 20, à un moment déterminé par rapport à l'ouverture de la chambre de coupure 10 dans une chronologie déterminée et définie dans la description du document EP 1 653 491 .With reference to the figure 1 known from the patent document EP 1 653 491 A2 such a hybrid circuit breaker having a breaking chamber 10 defining a longitudinal axis A, A 'and, placed perpendicularly, a vacuum interrupter 20 controlled by the same mechanical mechanism. The order of the assembly is done by mechanical elements, most of which are not shown, operating along the longitudinal axis A, A 'of the breaking chamber 10. In one of the embodiments of these mechanical control elements, there is a plate slider 154 which acts on a roller 155 rotatably mounted at the end of a rod 152, itself secured to a control rod 23 carrying the movable contact 22 of the vacuum interrupter 20. An inclined surface of the sliding plate 154 allows actuating the control rod 23 of the vacuum interrupter to separate the movable contact 22 from the fixed contact 21 of the vacuum interrupter 20, at a given moment with respect to the opening of the interrupting chamber 10 in a chronology determined and defined in the description of the document EP 1 653 491 .

Plus précisément dans ce type de système, lorsque le mécanisme de commande se déplace le long de l'axe longitudinal A, A' de la chambre de coupure 10, ceci provoque, mis à part le mécanisme d'ouverture de cette chambre de coupure 10, l'ouverture de l'ampoule à vide 20. En effet, sous l'action de la plaque coulissante 154, la tige de commande 23 de l'ampoule à vide se déplace, par l'intermédiaire du galet 155. Une fois que le galet 155 a atteint la rampe d'extrémité 140 de la plaque coulissante 55, parallèle à l'axe longitudinal A, A', la tige de commande 23 de l'ampoule à vide 20 est sollicitée, entre autre par un ressort 138 pour revenir dans une position initiale dans laquelle les contacts fixe 21 et mobile 22 sont remis en contact à l'intérieure de l'ampoule à vide 20. Un autre cycle peut alors être effectué.More precisely in this type of system, when the control mechanism moves along the longitudinal axis A, A 'of the breaking chamber 10, this causes, apart from the opening mechanism of this breaking chamber 10 the opening of the vacuum interrupter 20. Indeed, under the action of the sliding plate 154, the control rod 23 of the vacuum bulb moves, via the roller 155. Once the roller 155 has reached the end ramp 140 of the sliding plate 55, parallel to the longitudinal axis A, A ', the control rod 23 of the vacuum interrupter 20 is urged, inter alia by a spring 138 to return to an initial position in which the fixed contacts 21 and mobile 22 are brought into contact within the vacuum bottle 20. Another cycle can then be performed.

On signale que, sur cette figure 1, la représentation de certains éléments a été simplifiée, ce qui est le cas, entre autre des contacts fixe 21 et mobile 22 de l'ampoule à vide 20.It is reported that on this figure 1 , the representation of certain elements has been simplified, which is the case, among other fixed contacts 21 and mobile 22 of the vacuum bottle 20.

Toutefois, ce type de commande mécanique nécessite de nombreux éléments mécaniques fixes et mobiles, ce qui implique de nombreux usinages.However, this type of mechanical control requires many mechanical elements fixed and movable, which involves many machining.

Le but de l'invention est d'éviter ces inconvénients dûs à la complexité du système mécanique et à son coût de fabrication.The object of the invention is to avoid these disadvantages due to the complexity of the mechanical system and its manufacturing cost.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

A cet effet, l'objet principal de l'invention est un disjoncteur hybride comprenant :

  • un premier interrupteur comprenant lui-même une première paire de contacts dans laquelle un contact mobile peut être déplacé par rapport à un contact fixe selon un premier axe longitudinal entre une position fermée et une position ouverte ;
  • un deuxième interrupteur comprenant une deuxième paire de contacts dans laquelle un deuxième contact mobile, solidaire d'une tige de contact mobile, peut être déplacé selon un deuxième axe entre une position fermée et un position ouverte grâce à une tige de commande, et
  • des moyens d'actionnement assurant, par une action de commande unique, le déplacement des contacts mobiles par rapport aux contacts fixes entre une position de fermeture et une position d'ouverture, les moyens d'actionnement étant adaptés pour ouvrir la première et la deuxième paire de contacts puis à refermer la deuxième paire de contacts tout en maintenant la première paire ouverte pendant un temps déterminé.
For this purpose, the main object of the invention is a hybrid circuit breaker comprising:
  • a first switch itself comprising a first pair of contacts in which a movable contact can be moved relative to a fixed contact along a first longitudinal axis between a closed position and an open position;
  • a second switch comprising a second pair of contacts in which a second movable contact, integral with a movable contact rod, can be moved along a second axis between a closed position and an open position by means of a control rod, and
  • actuating means ensuring, by a single control action, the displacement of the movable contacts relative to the fixed contacts between a closed position and an open position, the actuating means being adapted to open the first and second pair of contacts and then close the second pair of contacts while maintaining the first pair open for a certain time.

Selon l'invention, le disjoncteur hybride possède un système de maintien de la tige de commande du deuxième interrupteur et un système d'accumulation d'énergie prenant appui sur la tige de contact mobile et par rapport à un point fixe et étant destiné à être chargé jusqu'à une certaine valeur pour laquelle le système de maintien se déforme sous l'effort et désolidarise la tige de commande de la tige de contact mobile et permet le retour du contact mobile vers le contact fixe.According to the invention, the hybrid circuit breaker has a system for holding the control rod of the second switch and a system for accumulating energy bearing on the movable contact rod and with respect to a fixed point and intended to be loaded up to a certain value for which the holding system deforms under the force and disengages the control rod of the movable contact rod and allows the return of the movable contact to the fixed contact.

Dans une première réalisation de l'invention, le système de maintien de la tige de commande possède un ressort hélicoïdal torique souple placé dans une rainure de la tige de contact mobile et dans la rainure d'une tige de commande du deuxième interrupteur et un système d'accumulation d'énergie prenant appui sur la tige de contact mobile par rapport à un point fixe et étant destiné à être chargé jusqu'à une certaine valeur pour laquelle le ressort hélicoïdal torique souple se déforme sous l'effort et désolidarise la tige de commande de la tige de contact mobile et permet le retour du contact mobile vert le contact fixe.In a first embodiment of the invention, the control rod holding system has a flexible toroidal coil spring placed in a groove of the movable contact rod and in the groove of a control rod of the second switch and a system of energy accumulation bearing on the movable contact rod relative to a fixed point and being intended to be loaded up to a certain value for which the flexible toroidal coil spring deforms under the force and disengages the rod from control of the movable contact rod and allows the return of the green mobile contact the fixed contact.

Dans une deuxième réalisation du système de maintien de la tige de commande, celui-ci comprend une bille poussée hors d'un trou non traversant et radial dans la tige de contact mobile par un ressort placé à l'intérieur de ce trou et une encoche correspondant pratiquée dans la surface interne d'une extrémité de la tige de commande, ladite extrémité ayant une longueur supérieure à la course de la tige de contact mobile dans l'extrémité de la tige de commande pour que la bille ne sorte pas de ladite extrémité.In a second embodiment of the control rod holding system, the latter comprises a ball pushed out of a non-through and radial hole in the movable contact rod by a spring placed at the interior of this hole and a corresponding notch formed in the inner surface of one end of the control rod, said end having a greater length than the stroke of the movable contact rod in the end of the control rod for that the ball does not come out of said end.

Dans une première réalisation du disjoncteur selon l'invention le premier interrupteur est une chambre de coupure dans laquelle se trouve une rainure de commande possèdant entre deux parties parallèles à l'axe longitudinal A, A' une partie inclinée destinée à être une rampe de commande pour la tige de commande du deuxième interrupteur qui est une ampoule à vide, par déplacement longitudinal de la rainure le long de l'axe longitudinal A, A'.In a first embodiment of the circuit breaker according to the invention the first switch is a breaking chamber in which there is a control groove having between two parts parallel to the longitudinal axis A, A 'inclined part intended to be a control ramp for the control rod of the second switch which is a vacuum interrupter, by longitudinal displacement of the groove along the longitudinal axis A, A '.

Dans une deuxième réalisation, le premier interrupteur est une chambre de coupure placée selon un axe longitudinal C, C' parallèle au deuxième axe longitudinal du deuxième interrupteur qui est une ampoule à vide. Dans ce cas, la tige de commande de l'ampoule à vide est complétée par une partie perpendiculaire dont l'extrémité est montée coulissante dans une rainure longitudinale de la chambre de coupure.In a second embodiment, the first switch is a switching chamber placed along a longitudinal axis C, C 'parallel to the second longitudinal axis of the second switch which is a vacuum interrupter. In this case, the control rod of the vacuum bulb is completed by a perpendicular portion whose end is slidably mounted in a longitudinal groove of the interrupting chamber.

LISTE DES FIGURESLIST OF FIGURES

L'invention et ses différentes caractéristiques techniques seront mieux comprises à la lecture de la description suivante qui est accompagnée de plusieurs figures représentant respectivement :

  • Figure 1, un disjoncteur hybride de l'art antérieur ;
  • Figure 2, une première réalisation du disjoncteur hybride selon l'invention ;
  • Figure 3, en coupe, une première variante d'un détail du disjoncteur hybride selon l'invention ;
  • Figure 4, en coupe, une deuxième variante du même détail du disjoncteur hybride selon l'invention ; et
  • Figure 5, une deuxième réalisation du disjoncteur hybride selon l'invention.
The invention and its various technical features will be better understood on reading the following description which is accompanied by several figures respectively representing:
  • Figure 1 a hybrid circuit breaker of the prior art;
  • Figure 2 a first embodiment of the hybrid circuit breaker according to the invention;
  • Figure 3 , in section, a first variant of a detail of the hybrid circuit breaker according to the invention;
  • Figure 4 , in section, a second variant of the same detail of the hybrid circuit breaker according to the invention; and
  • Figure 5 , a second embodiment of the hybrid circuit breaker according to the invention.

DESCRIPTION DETAILLEE DE DEUX REALISATIONS DE L'INVENTIONDETAILED DESCRIPTION OF TWO REALIZATIONS OF THE INVENTION

En référence à la figure 2, il est prévu, selon l'invention, d'utiliser un système d'interrupteur dans un disjoncteur hybride tel que défini dans la demande de brevet européen EP 1 653 491 pour actionner les contacts mobiles 21 et 22 de l'ampoule à vide 20. Un tel dispositif d'actionnement permet de réaliser le diagramme temporel suivant :

  • commande d'ouverture d'un premier interrupteur qui est ici la chambre de coupure 110 ;
  • décalage de l'ouverture d'un deuxième interrupteur qui est ici l'ampoule à vide 20, de façon à permettre au contact de la chambre de coupure 110 de se séparer à une vitesse minimale et de façon synchrone à la séparation des contacts mobile 21 et fixe 22 de l'ampoule à vide 20, et
  • fermeture de l'ampoule à vide 20, tout en maintenant la chambre de coupure 110 en position ouverte.
With reference to the figure 2 it is intended, according to the invention, to use a switch system in a hybrid circuit breaker as defined in the application for European patent EP 1 653 491 for actuating the movable contacts 21 and 22 of the vacuum interrupter 20. Such an actuating device makes it possible to produce the following time diagram:
  • opening control of a first switch which is here the breaking chamber 110;
  • offset the opening of a second switch which is here the vacuum bottle 20, so as to allow the contact of the breaking chamber 110 to separate at a minimum speed and synchronously to the separation of the movable contacts 21 and fixed 22 of the vacuum interrupter 20, and
  • closing the vacuum bottle 20, while keeping the breaking chamber 110 in the open position.

Plus précisément, ceci permet d'ouvrir l'ampoule à vide 20 puis de la refermer, sous l'effet d'un ressort 39, tout en continuant la course d'une tige de commande 31. Le ressort 39 remplit le rôle de système d'accumulation d'énergie. Dans ce système, la tige de commande 31 tire le contact mobile 22 de l'ampoule à vide 20, par l'intermédiaire d'un ressort hélicoïdale torique souple 38 qui solidarise temporairement la tige de commande 31 et une tige de contact mobile 32 à l'extrémité de laquelle est fixé le contact mobile 22. En même temps, le ressort 39 est comprimé jusqu'au moment le ressort hélicoïdal torique souple 38 cède en se comprimant, relâchant ainsi la tige du contact mobile 32 qui se ferme sous l'action du ressort 39.More specifically, this makes it possible to open the vacuum interrupter 20 and then to close it under the effect of a spring 39, while continuing the stroke of a control rod 31. The spring 39 serves as a system of energy accumulation. In this system, the control rod 31 pulls the movable contact 22 of the vacuum interrupter 20, via a flexible toroidal coil spring 38 which temporarily secures the control rod 31 and a movable contact rod 32 to the end of which is fixed the movable contact 22. At the same time, the spring 39 is compressed until the flexible toroidal coil spring 38 yields by compressing, thus releasing the rod of the movable contact 32 which closes under the spring action 39.

Un tel agencement permet, tout en ayant une course relativement importante pour la tige de commande 31, de ne pas écarter d'une trop grande distance le contact mobile 22 du contact fixe 21 de l'ampoule à vide 20. En d'autre terme, le contact mobile 22 revient vers le contact mobile 21 alors que la tige de commande 31, actionnée par le système mécanique d'actionnement de l'ampoule à vide 20 et de la chambre de coupure 110 continue sa course.Such an arrangement allows, while having a relatively large stroke for the control rod 31, not to spread too far away the movable contact 22 of the fixed contact 21 of the vacuum interrupter 20. In other words , the movable contact 22 returns to the movable contact 21 while the control rod 31, actuated by the mechanical system for actuating the vacuum bottle 20 and the breaking chamber 110 continues its course.

La figure 3 montre en détail une première variante de la liaison entre la tige de commande 31 et la tige de contact mobile 32 permettant l'ouverture et la fermeture de l'ampoule à vide, tel que décrit précédemment. L'extrémité supérieure 34 de la tige de commande 31 a une forme élargie et creuse. L'espace interne ainsi défini 35 a un diamètre interne très légèrement supérieur au diamètre externe de la tige de contact mobile 32. Cette dernière possède une rainure 36 sur son périmètre et l'extrémité supérieure 34 de la tige de commande 31 possède, sur sa surface interne une même rainure 37 correspondant à la rainure 35 de la tige de commande 32. Ces deux rainures 35 et 37 définissent un espace radiale dans lequel est placé le ressort hélicoïdal torique souple 38.The figure 3 shows in detail a first variant of the connection between the control rod 31 and the movable contact rod 32 allowing the opening and closing of the vacuum bulb, as described previously. The upper end 34 of the control rod 31 has an enlarged and hollow shape. The internal space thus defined 35 has an internal diameter very slightly greater than the external diameter of the movable contact rod 32. The latter has a groove 36 on its perimeter and the upper end 34 of the control rod 31 has, on its internal surface a same groove 37 corresponding to the groove 35 of the control rod 32. These two grooves 35 and 37 define a radial space in which is placed the flexible toric coil spring 38.

On comprend que, si la tige de commande 31 est sollicité avec une force suffisante vers le bas de la figure 3, le ressort hélicoïdal torique souple 38 cèdera à partir d'une certaine de valeur de la contrainte imposée par la tige de commande 31. Le ressort hélicoïdal torique souple 38 se déforme alors en se comprimant et permet la désolidarisation de la tige de contact mobile 32 par rapport à la tige de commande 31.It is understood that if the control rod 31 is loaded with sufficient force down the figure 3 , the flexible toroidal coil spring 38 will yield from a certain value of the stress imposed by the control rod 31. The flexible toroidal coil spring 38 then deforms by compressing and allows the separation of the movable contact rod 32 relative to the control rod 31.

En référence à la figure 4, une deuxième variante de la liaison entre la tige de commande 41 et la tige de contact mobile 42 utilise une bille 48 poussée par un ressort 49, logé lui-même dans un trou non traversant et radial 45 pratiqué dans la tige de contact mobile 42, vers son extrémité faisant face à la tige de commande 41. En correspondance, la surface interne de l'extrémité 44 de la tige de commande 41 qui a donc une forme tubulaire allongée, possède une encoche 47 correspondante à la position de la bille 48, lorsque la tige de commande 41 et la tige de contact mobile 42 sont solidarisées. La bille 48 dépasse donc de la surface externe de la tige de contact mobile 42 pour être logée dans l'encoche 47 de l'extrémité 44 de la tige de commande 41.With reference to the figure 4 a second variant of the connection between the control rod 41 and the movable contact rod 42 uses a ball 48 pushed by a spring 49, itself housed in a non-through and radial hole 45 formed in the movable contact rod 42 towards its end facing the control rod 41. In correspondence, the inner surface of the end 44 of the control rod 41 which therefore has an elongated tubular shape, has a notch 47 corresponding to the position of the ball 48 when the control rod 41 and the contact rod mobile 42 are secured. The ball 48 therefore protrudes from the outer surface of the movable contact rod 42 to be housed in the notch 47 of the end 44 of the control rod 41.

Lors de l'augmentation de la traction fournie par le ressort 39 (figure 2), la bille 48 est refoulée à l'intérieur du trou 45 en pressant le ressort 49. La tige de contact mobile 42 a donc tendance à se dégager de l'extrémité 44 de la tige de commande 41 en coulissant à l'intérieur, sans toutefois que la bille 48 ne sorte de cette extrémité 44. En conséquence, la longueur de l'extrémité 44 de la tige de commande 41 est bien supérieure à la course prévue entre les deux positions relatives de la tige de contact mobile 42 et la tige de commande 41.When increasing the traction provided by the spring 39 ( figure 2 ), the ball 48 is pushed inside the hole 45 by pressing the spring 49. The movable contact rod 42 therefore tends to disengage from the end 44 of the control rod 41 by sliding inside, without the ball 48 coming out of this end 44. Consequently, the length of the end 44 of the control rod 41 is much greater than the stroke provided between the two relative positions of the movable contact rod 42 and the control rod 41.

Le système de désolidarisation temporaire automatique de la tige de contact mobile par rapport à la tige de commande de l'ampoule à vide tel que décrit précédemment permet d'envisager d'autres architectures du disjoncteur hybride.The automatic temporary disconnection system of the movable contact rod relative to the control rod of the vacuum interrupter as described above makes it possible to envisage other architectures of the hybrid circuit breaker.

En effet, en référence à la figure 4, on peut envisager d'utiliser une ampoule à vide 20 définissant un axe longitudinal D, D' qui est parallèle à l'axe longitudinal C, C' de la chambre de coupure 210 correspondante. On retrouve dans cette réalisation, les éléments principaux que sont l'ampoule à vide 20, le ressort 24 d'accumulation d'énergie, la tige de commande 231 avec son extrémité supérieure 234 solidarisée à la tige de contact mobile 32 par un ressort hélicoïdal torique souple 238 la partie inférieure de la tige de commande 231 possède une partie perpendiculaire 232 terminée par une extrémité 235 montée coulissante dans une fente longitudinale 212 de la chambre de coupure 210. Un palier 233 a été symbolisé autour de la tige de commande 231 pour montrer qu'elle est guidée en translation longitudinal selon l'axe longitudinal D, D'. Là aussi, le dispositif mécanique unique de commande est simplifié, puisqu'il suffit qu'il entraîne, dans la chambre de coupure 210, l'extrémité 235 de la partie perpendiculaire 232 de la tige de commande 231. La chronologie des ouvertures respectives des chambres de coupure 210 et de l'ampoule à vide 20 peut donc être la même que celle décrite précédemment et dans le document de brevet EP 1 653 491 A2 .Indeed, with reference to the figure 4 it can be envisaged to use a vacuum interrupter 20 defining a longitudinal axis D, D 'which is parallel to the longitudinal axis C, C' of the corresponding interrupting chamber 210. In this embodiment, we find the main elements that are the vacuum bulb 20, the energy storage spring 24, the control rod 231 with its upper end 234 secured to the movable contact rod 32 by a helical spring flexible ring 238 the lower part of the control rod 231 has a perpendicular portion 232 terminated by an end 235 slidably mounted in a longitudinal slot 212 of the interrupting chamber 210. A bearing 233 has been symbolized around the control rod 231 to show that it is guided in longitudinal translation along the longitudinal axis D, D '. Again, the single mechanical control device is simplified, since it is sufficient that it causes, in the breaking chamber 210, the end 235 of the perpendicular portion 232 of the control rod 231. The chronology of the respective openings of the cutoff chambers 210 and the vacuum bottle 20 may therefore be the same as that described above and in the patent document EP 1 653 491 A2 .

Claims (5)

  1. A hybrid circuit breaker comprising:
    • a first switch comprising a first pair of contacts in which a movable contact can be moved along a first longitudinal axis (A, A'; C, C') between a closed position and an open position;
    • a second switch comprising a second pair of contacts in which a movable contact (22), secured to a rod (32, 42) of a movable contact, is movable along a second axis (B, B'; D, D') between a closed position and an open position, by means of a control rod (31, 41, 231); and
    • actuator means providing to a single control action to move the movable contacts relative to the stationary contacts between a closed position and an open position, the actuator means being adapted to open the first and second pairs of contacts and then to re-close the second pair of contacts while holding the first pair open for a determined length of time;
    the circuit breaker being characterized in that it has a holding system for holding the control rod (31, 41, 231) of the second switch and an energy accumulation system pressing against the movable contact rod (32, 42) and relative to a fixed point and being designed to be loaded up to a certain value at which the holding system deforms under the force and separates the control rod (31, 41, 231) from the movable contact rod (32, 42) and enables the movable contact (22) to return towards the stationary contact (21).
  2. A hybrid circuit breaker according to claim 1, characterized in that the holding system of the control rod (31, 231) is a flexible toroidal helical spring (38, 238) placed in a groove (35) of the movable contact rod (32) and a groove (37) on an inside surface of the control rod (31, 231) of the second switch and an energy accumulation system pressing against the movable contact rod (32) and relative to a fixed point, and being designed to be loaded up to a certain value at which the flexible toroidal helical spring (38, 238) deforms under the force and releases the control rod (31, 231) from the movable contact rod (32) and enables the movable contact (22) to return towards the stationary contact (21).
  3. A hybrid circuit breaker according to claim 1, characterized in that the holding system for the control rod (41) comprises a ball (48) thrust outwards from a radial non-through hole (45) in the movable contact rod (42) by a spring (49) placed inside said hole and a corresponding notch (47) made in the inside surface of an end (44) of the control rod (41), said end (44) having a length that is greater than the stroke of the movable contact rod (42) in the end (44) of the control rod (41) so that the ball (48) does not escape from said end (44).
  4. A hybrid circuit breaker according to claim 1, characterized in that the first switch is an arc-control device (110) in which there is a control groove (112) having a sloping portion (114) between two portions parallel to the longitudinal axis (A, A') of this arc-control device (110), which sloping portion (114) is designed to constitute a control ramp for the control rod (31, 41) of the second switch that is a vacuum switch (20) by longitudinal movement of the end of the control rod (31, 41) in the groove (112), along the longitudinal axis (A, A') of the arc-control device (110).
  5. A hybrid circuit breaker according to claim 1, being characterized in that the first switch is an arc-control device (210) placed along a longitudinal axis (C, C') parallel to the second longitudinal axis (D, D') of the second switch that is a vacuum switch (20), the control rod (231) of the vacuum switch (20) having a perpendicular portion (232) with its end mounted to slide in a longitudinal groove (212) of the arc-control device (210).
EP11706837.9A 2010-03-09 2011-03-08 Hybrid circuit breaker using switch for restoring to a closure Not-in-force EP2545573B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1051679A FR2957450B1 (en) 2010-03-09 2010-03-09 HYBRID CIRCUIT BREAKER USING A CLOSED RETURN SWITCH
PCT/EP2011/053472 WO2011110561A1 (en) 2010-03-09 2011-03-08 Hybrid circuit breaker using a switch having return upon closure

Publications (2)

Publication Number Publication Date
EP2545573A1 EP2545573A1 (en) 2013-01-16
EP2545573B1 true EP2545573B1 (en) 2015-02-11

Family

ID=42942152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11706837.9A Not-in-force EP2545573B1 (en) 2010-03-09 2011-03-08 Hybrid circuit breaker using switch for restoring to a closure

Country Status (7)

Country Link
US (1) US9099267B2 (en)
EP (1) EP2545573B1 (en)
JP (1) JP5765825B2 (en)
CN (1) CN102844830B (en)
CA (1) CA2790573A1 (en)
FR (1) FR2957450B1 (en)
WO (1) WO2011110561A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2971080B1 (en) * 2011-02-02 2013-03-01 Alstom Grid Sas VACUUM BULB DEVICE COMPRISING A LOCKING MEANS
US9054530B2 (en) 2013-04-25 2015-06-09 General Atomics Pulsed interrupter and method of operation
WO2015029516A1 (en) * 2013-08-29 2015-03-05 株式会社日立製作所 Gas circuit breaker
CN106971904B (en) * 2017-05-15 2019-04-05 上海交通大学 Vacuum circuit breaker closing transmission mechanism
CN109243905B (en) * 2018-08-28 2024-06-21 广东科技学院 Isolation switch device

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Publication number Priority date Publication date Assignee Title
US3560682A (en) * 1965-11-30 1971-02-02 Siemens Ag Vacuum interrupter with shunting main contact structure and series disconnecting contact structure
US4168417A (en) 1978-01-25 1979-09-18 Square D Company Remote operating mechanism for electric switches
JPS5619831A (en) * 1979-07-27 1981-02-24 Tokyo Shibaura Electric Co Swithc for vacuum valve
JPS58181218A (en) * 1982-04-19 1983-10-22 株式会社日立製作所 Composite vacuum breaker
JPS5920930A (en) * 1982-07-28 1984-02-02 株式会社東芝 Hybrid breaker
DE3528770A1 (en) * 1985-08-10 1987-02-19 Driescher Eltech Werk Medium-voltage switching installation
FR2744284B1 (en) * 1996-01-29 1998-04-03 Schneider Electric Sa MEDIUM VOLTAGE MULTIPOLAR CIRCUIT BREAKER OR CIRCUIT BREAKER
US5933308A (en) * 1997-11-19 1999-08-03 Square D Company Arcing fault protection system for a switchgear enclosure
ATE368932T1 (en) * 2001-11-09 2007-08-15 Abb Schweiz Ag HYBRID CIRCUIT SWITCH WITH A GEARBOX
FR2840729B1 (en) * 2002-06-05 2004-07-16 Alstom HIGH OR MEDIUM VOLTAGE SWITCHING DEVICE WITH MIXED VACUUM AND GAS CUT
FR2868199B1 (en) * 2004-03-25 2006-05-19 Areva T & D Sa HIGH VOLTAGE HYBRID CIRCUIT BREAKER.
FR2877136B1 (en) * 2004-10-27 2006-12-15 Areva T & D Sa TRAINING CINEMATICS IN A HYBRID CIRCUIT BREAKER
FR2901055B1 (en) * 2006-05-12 2008-07-04 Areva T & D Sa ALTERNATOR DISCONNECT CIRCUIT BREAKER ACTUATED BY A MOTOR SERVO

Also Published As

Publication number Publication date
EP2545573A1 (en) 2013-01-16
FR2957450A1 (en) 2011-09-16
US9099267B2 (en) 2015-08-04
FR2957450B1 (en) 2012-04-20
JP2013521626A (en) 2013-06-10
JP5765825B2 (en) 2015-08-19
CN102844830A (en) 2012-12-26
US20130233831A1 (en) 2013-09-12
WO2011110561A1 (en) 2011-09-15
CA2790573A1 (en) 2011-09-15
CN102844830B (en) 2015-07-22

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