EP2965339A1 - System for driving a follower cap by means of a trigger for a high-voltage grounding device - Google Patents

System for driving a follower cap by means of a trigger for a high-voltage grounding device

Info

Publication number
EP2965339A1
EP2965339A1 EP14709227.4A EP14709227A EP2965339A1 EP 2965339 A1 EP2965339 A1 EP 2965339A1 EP 14709227 A EP14709227 A EP 14709227A EP 2965339 A1 EP2965339 A1 EP 2965339A1
Authority
EP
European Patent Office
Prior art keywords
trigger
grounding
stop
rod
fixed
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
EP14709227.4A
Other languages
German (de)
French (fr)
Other versions
EP2965339B1 (en
Inventor
Mathieu Bernard
Yoann PLY
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Technology GmbH
Original Assignee
Alstom Technology AG
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 Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP2965339A1 publication Critical patent/EP2965339A1/en
Application granted granted Critical
Publication of EP2965339B1 publication Critical patent/EP2965339B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact

Definitions

  • the invention relates to electrical equipment for earthing in high voltage electrical installations.
  • Electrical installations such as high-voltage substations, are composed of multiple electrical devices that have fundamental functions, but different from each other. All of these devices have the function of distributing energy on high-voltage electricity networks, while protecting these networks.
  • Electrical high - voltage interrupt devices concern networks supplied with alternating current at voltages greater than 1,000 Volts. Perfect control of electrical energy requires the necessary means to control and control the flow of current in the electrical circuits that connect power plants to consumers. Such a mission is fundamentally the responsibility of devices whose control is to ensure as a priority the automatic protection of circuits against all incidents likely to disrupt its operation. These devices must also perform, on command, the various operations that make it possible to modify the configuration of the network under normal conditions of service. With these additional functions of voluntary control and automatic safety, the electrical devices contribute to the quality of the availability of the electricity network and its safety of use. The main quality of these electrical devices is not only to be available at all times, but also to intervene without failure, to the point of forgetting that they exist. Maintenance operations, even light and limited in number are both expensive and inconvenient for the operation. As a result, these devices are required to have near perfect reliability.
  • Grounding disconnectors are safety devices intended to establish a connection, via a rigid conductive material, between the live parts attached to a little or unknown potential, and the earth.
  • PCT patent application WO 2012/049 136 A1 discloses a ground disconnecting device and a high voltage substation comprising such a device.
  • a high-voltage station is gas-insulated and comprises a metal grounding shell and a high-voltage conductor coaxially disposed therein.
  • the device comprises an insulating tube disposed between the envelope and the conductor, perpendicular thereto, thus allowing supporting the conductor and guiding a conductive moving part of this conductor grounding.
  • the energy level, when closing a fast grounding device, in the field of high voltage or ultra high voltage is so high that there is a need to oversize each component of the device .
  • the object of the invention is to provide a drive system of a follower cover meeting this requirement, for an equipment earthing.
  • the main object of the invention is a driving system for a follower cover for a fast grounding device, the latter comprising:
  • grounding rod slidably mounted longitudinally with respect to the guide housing so that it can be brought into contact with a fixed contact of the grounding device; a follower cap placed coaxially with the grounding rod, around it and intended to follow this grounding rod, over a determined part of its travel, and
  • the system comprises: a trigger pivoting about a trigger axis fixed perpendicularly to the grounding rod and comprising:
  • the follower cover is fixed to columns which are themselves fixed on a column-holder piece slidably mounted longitudinally and equipped with the movable stop capable of being driven by the second locking device and the trigger end of the trigger.
  • the grounding device to which the system according to the invention applies comprises, inter alia, a grounding rod 1, slidably mounted longitudinally with respect to a guide housing 9 which symbolizes the building of the grounding device.
  • a follower cover 2 is mounted around the grounding rod 1, by means of two columns 3, mounted themselves sliding longitudinally in the guide housing 9.
  • Driving means of the grounding rod 1 are required and are symbolized here by an operating rod 8 sliding this ground rod 1 in the direction of a fixed contact 20 of the grounding device.
  • the follower cover 2 is supposed to follow the longitudinal progression of the ground 1 over a large part of the race of the latter, to stop at a specific location, while the ground rod 1 continues its progression until it comes into contact with the fixed contact 20.
  • the driving system of the follower cover mainly comprises a trigger 6 pivotally mounted about a trigger axis 6A perpendicular to the longitudinal axis of the grounding rod 1 and therefore the setting device. Earth.
  • This axis of rotation of the trigger 6 is fixed relative to the grounding rod 1.
  • this trigger 6 undergoes the longitudinal comings and goings made by the grounding rod 1 relative to the guide housing 9.
  • a part called column-holder 10, supporting the columns 3 is also slidably mounted inside the guide housing 9.
  • the function of the trigger 6 is to drive the assembly column-holder 10 / columns 3 / follower hood 2 on the part determined the path of the ground rod 1, when closing the earthing device.
  • FIG. 2 shows the same assembly as FIG. 1, with the exception of the fixed contact 20. However, a part of the guide casing 9 has been put back in its place and thus hides the inside of the assembly, in particular the system of FIG. 'training. There is still the follower cover 2, the ground rod 1, the columns 3, the guide housing 9 and the drive rod 8.
  • Figure 3 shows in detail the mechanism of the drive system according to the invention.
  • the main member is therefore the trigger 6 pivotally mounted around the trigger axis 6A mounted perpendicular to the grounding rod 1.
  • a first end called stop 6B of the trigger 6 has a round shape called roll 5.
  • the orientation of this end stop 6B is such that, whatever the angular position of the trigger 6, the roller 5 is on the trajectory of an abutment 10A of the column-holder 10 and placed at the opposite of the follower cap with respect to the roller 5.
  • a second so-called locking end 6C is angularly offset relative to the first end stop 6B of the trigger, at an angle of about 90 °.
  • This second locking end 6C has a hook shape so as to be able, after pivoting of the trigger 6 in the trigonometric direction with respect to this FIG. 3, to go on the path of the abutment 10A of the column-holder 10.
  • the operating rod 8 is actuated by a geared motor not shown. It drives in longitudinal translation the slider 7 carrying the earth rod 1.
  • the trigger 6 has a position different from that shown in this FIG. 3, that is to say an angular offset in the trigonometric sense.
  • the locking end 6C passes under the abutment 10A of the column-holder 10. Consequently, from the beginning of the driving of the slider 7 by the operating rod 8, the column-holder 10 is driven in translation. With the ground rod 1. As a result, the follower cover follows the earth rod 1.
  • the trigger 6 is held in this position, said closed by a return spring not shown in these figures. In FIG. 3, the trigger 6 is not in the closed position, but is in an open position.
  • the connecting rod 8 drives the assembly of the earth rod 1, via the slider 7 in the opposite direction, that is to say 3.
  • the roller 5 comes into contact with a stop 10A of the column-holder 10, which has the effect of rotating the trigger 6 in the trigonometrical direction and to put it back in the closed position, the end 6C of the trigger 6 going up to the right of the abutment 10A of the column-holder 10.
  • the latter is thus driven together with the earth rod 1 to the position of opening of the grounding device also carrying the columns 10 and the follower cover.
  • the different strokes of the grounding rod and the follower hood can be easily adapted to the needs of each device.
  • the triggering spring 6 will automatically cause the balancer holder 10, when opening the quick ground device. This has the effect of ensuring that the follower cover has returned to its original position despite this defect.
  • the mechanism of this system is relatively simple and can be used on existing earthing control devices and can be of relatively low compactness.
  • this system can be adapted to any type of ground control.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The invention relates to a driving system for a rapid grounding device, which is relatively compact and allows the back and forth movement of the follower cap (2) of the grounding rod (1) over the determined length. It comprises a trigger (6) mounted pivotably on a perpendicular shaft secured to the grounding rod (1). During the closing of the grounding device, the trigger, by means of the blocking end (6c) thereof, allows the driving of a colonette carrier (10) in relation to which the follower cap (2) is fixed over a determined length, and during the opening phases of the grounding device, allows said colonette carrier (10) to be driven in the opposite direction by means of an abutment end (6B), once the trigger (6) has been pivoted. The invention is applicable to the rapid grounding device.

Description

SYSTEME D'ENTRAINEMENT PAR GACHETTE D'UN CAPOT SUIVEUR POUR UN DISPOSITIF DE MISE A LA TERRE HAUTE TENSION  SPEED HOOD DRIVE SYSTEM FOR A HIGH VOLTAGE GROUNDING DEVICE
DESCRIPTION DESCRIPTION
Domaine de l'invention Field of the invention
L' invention concerne les appareillages électriques de mise à la terre dans les installations électriques de type haute tension. The invention relates to electrical equipment for earthing in high voltage electrical installations.
Art antérieur et problème posé Prior art and problem
Les installations électriques, telles que les postes électriques haute tension sont composés de multiples appareils électriques qui ont des fonctions fondamentales, mais différentes les unes des autres. L'ensemble de ces appareils a pour fonction de distribuer l'énergie sur les réseaux électriques haute tension, tout en protégeant ces réseaux. Electrical installations, such as high-voltage substations, are composed of multiple electrical devices that have fundamental functions, but different from each other. All of these devices have the function of distributing energy on high-voltage electricity networks, while protecting these networks.
Les appareils électriques d' interruption à haute tension concernent les réseaux alimentés, en courant alternatif sous des tensions supérieures à 1 000 Volts. Une parfaite maîtrise de l'énergie électrique nécessite de posséder les moyens nécessaires à la commande et au contrôle de la circulation du courant dans les circuits électriques qui relient les centrales de production aux consommateurs. Une telle mission incombe fondamentalement à des appareils dont le contrôle est d'assurer en priorité la protection automatique des circuits contre tous les incidents susceptibles d'en perturber le fonctionnement. Ces appareils doivent également effectuer, sur commande, les différentes opérations qui permettent de modifier la configuration du réseau dans les conditions normales de service. Par ces fonctions complémentaires de commande volontaire et de sécurité automatique, les appareils électriques contribuent à la qualité de la disponibilité du réseau électrique et à sa sûreté d'emploi. La qualité principale de ces appareils électriques est, non seulement d'être disponibles à tout moment, mais également d'intervenir sans défaillance, au point de faire oublier qu'ils existent. Les opérations de maintenance, même légères et en nombre limité sont à la fois coûteuses et gênantes pour l'exploitation. En conséquence, on exige de ces appareils une fiabilité presque parfaite. Electrical high - voltage interrupt devices concern networks supplied with alternating current at voltages greater than 1,000 Volts. Perfect control of electrical energy requires the necessary means to control and control the flow of current in the electrical circuits that connect power plants to consumers. Such a mission is fundamentally the responsibility of devices whose control is to ensure as a priority the automatic protection of circuits against all incidents likely to disrupt its operation. These devices must also perform, on command, the various operations that make it possible to modify the configuration of the network under normal conditions of service. With these additional functions of voluntary control and automatic safety, the electrical devices contribute to the quality of the availability of the electricity network and its safety of use. The main quality of these electrical devices is not only to be available at all times, but also to intervene without failure, to the point of forgetting that they exist. Maintenance operations, even light and limited in number are both expensive and inconvenient for the operation. As a result, these devices are required to have near perfect reliability.
Les sectionneurs de mise à la terre sont des appareils de sécurité qui ont pour but d'établir une connexion, via un matériel conducteur rigide, entre les parties sous tension fixées à un potentiel pas ou peu connu, et la terre.  Grounding disconnectors are safety devices intended to establish a connection, via a rigid conductive material, between the live parts attached to a little or unknown potential, and the earth.
A titre indicatif, par la demande de brevet PCT WO 2012/049 136 Al, on connaît un dispositif sectionneur de terre et un poste électrique haute tension comprenant un tel dispositif. Un tel poste à haute tension est à isolation gazeuse et comprend une enveloppe métallique de mise à la terre et un conducteur haute tension, disposé de façon coaxiale à l'intérieur de celle-ci. Le dispositif comprend un tube isolant disposé entre l'enveloppe et le conducteur, perpendiculairement à ceux-ci, permettant ainsi de supporter le conducteur et de guider une partie mobile conductrice de mise à la terre de ce conducteur. By way of indication, PCT patent application WO 2012/049 136 A1 discloses a ground disconnecting device and a high voltage substation comprising such a device. Such a high-voltage station is gas-insulated and comprises a metal grounding shell and a high-voltage conductor coaxially disposed therein. The device comprises an insulating tube disposed between the envelope and the conductor, perpendicular thereto, thus allowing supporting the conductor and guiding a conductive moving part of this conductor grounding.
Le niveau d'énergie, lors de la fermeture d'un appareillage de mise à la terre rapide, dans le domaine de la haute tension ou ultra haute tension est si élevé que l'on éprouve le besoin de surdimensionner chaque composant de l'appareil.  The energy level, when closing a fast grounding device, in the field of high voltage or ultra high voltage is so high that there is a need to oversize each component of the device .
Une technique pour éviter un tel surdimensionnement peut consister en la protection, au sens diélectrique du terme, de la tige de mise à la terre par un capot, qui suit son déplacement. Cependant, ce capot doit s'arrêter au moment où se produit l'amorçage de la connexion, alors que la tige de mise à la terre continue son déplacement, jusqu'à entrer en contact avec la tulipe de la partie fixe.  One technique to avoid such oversizing may consist in the protection, in the dielectric sense of the term, of the ground rod by a cover, which follows its movement. However, this cover must stop when the initiation of the connection occurs, while the grounding rod continues its movement, until it comes into contact with the tulip of the fixed part.
Le but de l'invention est de présenter un système d'entraînement d'un capot suiveur répondant à cette exigence, pour un appareillage de mise à la terre .  The object of the invention is to provide a drive system of a follower cover meeting this requirement, for an equipment earthing.
Résumé de l'invention Summary of the invention
A cet effet, l'objet principal de l'invention est un système d'entraînement d'un capot suiveur pour un dispositif de mise à la terre rapide, ce dernier comprenant : For this purpose, the main object of the invention is a driving system for a follower cover for a fast grounding device, the latter comprising:
-un carter guide qui est fixe ;  a guide casing which is fixed;
-une tige de mise à la terre montée coulissante longitudinalement par rapport au carter guide pour pouvoir être mise en contact avec un contact fixe du dispositif de mise à la terre ; -un capot suiveur placé coaxialement à la tige de mise à la terre, autour d'elle et destiné à suivre cette tige de mise à la terre, sur une partie déterminée de sa course, et a grounding rod slidably mounted longitudinally with respect to the guide housing so that it can be brought into contact with a fixed contact of the grounding device; a follower cap placed coaxially with the grounding rod, around it and intended to follow this grounding rod, over a determined part of its travel, and
-un coulisseau sur lequel est fixé la tige de mise à la terre entraîné par une bielle de manœuvre et coulissant longitudinalement par rapport au carter guide .  a slide on which is fixed the grounding rod driven by a connecting rod and sliding longitudinally relative to the guide housing.
Selon l'invention, le système comprend : -une gâchette pivotante autour d'un axe de gâchette fixé perpendiculairement sur la tige de mise à la terre et comprenant :  According to the invention, the system comprises: a trigger pivoting about a trigger axis fixed perpendicularly to the grounding rod and comprising:
*une première extrémité de butée, et *une deuxième extrémité de blocage, décalée angulairement par rapport à la première extrémité d'environ 90° ;  a first abutment end, and a second locking end, angularly offset relative to the first end by about 90 °;
-une butée fixe par rapport au carter guide placée sur le chemin de la première extrémité de butée pour faire pivoter la gâchette dans un premier sens déterminé au moment où le capot doit s'arrêter pendant la fermeture du dispositif de mise à la terre et libérer le capot suiveur, et  a fixed abutment with respect to the guide casing placed on the path of the first end of the stop for pivoting the trigger in a first determined direction at the moment when the cover has to stop during the closing of the grounding device and to release the follower hood, and
-une butée mobile solidaire du capot suiveur placé sur le chemin de la première extrémité de la gâchette, placée du côté opposé à la première butée par rapport à l'extrémité de butée, pour faire pivoter la gâchette dans un deuxième sens opposé au premier sens, lors de l'ouverture du dispositif de mise à la terre et entraîner le capot suiveur conjointement à la tige de mise à la terre. Dans la réalisation préférée de système selon l'invention, le capot suiveur est fixé à des colonnettes elles-mêmes fixées sur une pièce porte- colonnette montée coulissante longitudinalement et équipée de la butée mobile susceptible d'être entraînée par la deuxième de blocage et l'extrémité de butée de la gâchette. a movable abutment integral with the follower cover placed on the path of the first end of the trigger, placed on the opposite side to the first abutment with respect to the abutment end, in order to rotate the trigger in a second direction opposite to the first direction , when opening the earthing device and driving the follower cover together with the earthing pin. In the preferred embodiment of the system according to the invention, the follower cover is fixed to columns which are themselves fixed on a column-holder piece slidably mounted longitudinally and equipped with the movable stop capable of being driven by the second locking device and the trigger end of the trigger.
Liste des figures List of Figures
L' invention et ses différentes caractéristiques techniques seront mieux comprises à la lecture de la description détaillée d'une réalisation de l'invention, accompagnée de trois figures représentant respectivement : The invention and its various technical characteristics will be better understood on reading the detailed description of an embodiment of the invention, accompanied by three figures respectively representing:
-figure 1, en coupe et en vue cavalière, le système selon l'invention monté sur un dispositif de mise à la terre ;  -Figure 1, in section and in a cavalier view, the system according to the invention mounted on a grounding device;
-figure 2, en vue cavalière, le même ensemble que la figure 1, mais sans coupe, et  2, in a cavalier view, the same assembly as FIG. 1, but without cutting, and
-figure 3, en coupe plus détaillée, le système d'entraînement selon l'invention.  -figure 3, in more detailed section, the drive system according to the invention.
Description détaillée d'une réalisation de 1 ' invention Detailed description of an embodiment of the invention
En référence à la figure 1, le dispositif de mise à la terre auquel s'applique le système selon l'invention comprend, entre autres, une tige de mise à la terre 1, montée coulissante longitudinalement par rapport à un carter guide 9 qui symbolise le bâti du dispositif de mise à la terre. Un capot suiveur 2 est monté autour de la tige de mise à la terre 1, au moyen de deux colonnettes 3, montées elles-mêmes coulissantes longitudinalement dans le carter guide 9. Des moyens d'entraînement de la tige de mise à la terre 1 sont nécessaires et sont symbolisés ici par une bielle de manoeuvre 8 faisant coulisser cette tige de mise à la terre 1 en direction d'un contact fixe 20 du dispositif de mise à la terre. With reference to FIG. 1, the grounding device to which the system according to the invention applies comprises, inter alia, a grounding rod 1, slidably mounted longitudinally with respect to a guide housing 9 which symbolizes the building of the grounding device. A follower cover 2 is mounted around the grounding rod 1, by means of two columns 3, mounted themselves sliding longitudinally in the guide housing 9. Driving means of the grounding rod 1 are required and are symbolized here by an operating rod 8 sliding this ground rod 1 in the direction of a fixed contact 20 of the grounding device.
Le capot suiveur 2 est sensé suivre la progression longitudinale de la mise à la terre 1 sur une grande partie de la course de cette dernière, pour s'arrêter à un endroit déterminé, alors que la tige de mise à la terre 1 continue sa progression jusqu'à ce qu'elle arrive en contact du contact fixe 20.  The follower cover 2 is supposed to follow the longitudinal progression of the ground 1 over a large part of the race of the latter, to stop at a specific location, while the ground rod 1 continues its progression until it comes into contact with the fixed contact 20.
Le système d'entraînement du capot suiveur selon l'invention comprend principalement une gâchette 6 montée pivotante autour d'un axe de gâchette 6A perpendiculaire à l'axe longitudinal de la tige de mise à la terre 1 et donc du dispositif de mise à la terre. Cet axe de rotation de la gâchette 6 est fixe par rapport à la tige de mise à la terre 1. De ce fait, cette gâchette 6 subit les allers et venues longitudinaux effectués par la tige de mise à la terre 1 par rapport au carter guide 9. On note qu'une pièce appelée porte-colonnettes 10, supportant les colonnettes 3 est également montée coulissante à l'intérieur du carter guide 9. La gâchette 6 a pour fonction d'entraîner l'ensemble porte-colonnettes 10 /colonnettes 3/capot suiveur 2 sur la partie déterminée du trajet de la tige de mise à la terre 1, lors de la fermeture du dispositif de mise à la terre. The driving system of the follower cover according to the invention mainly comprises a trigger 6 pivotally mounted about a trigger axis 6A perpendicular to the longitudinal axis of the grounding rod 1 and therefore the setting device. Earth. This axis of rotation of the trigger 6 is fixed relative to the grounding rod 1. As a result, this trigger 6 undergoes the longitudinal comings and goings made by the grounding rod 1 relative to the guide housing 9. It is noted that a part called column-holder 10, supporting the columns 3 is also slidably mounted inside the guide housing 9. The function of the trigger 6 is to drive the assembly column-holder 10 / columns 3 / follower hood 2 on the part determined the path of the ground rod 1, when closing the earthing device.
La figure 2 montre le même ensemble que la figure 1, à l'exception du contact fixe 20. Toutefois, une partie du carter guide 9 a été remise à sa place et cache donc l'intérieur de l'ensemble, notamment le système d'entraînement. On distingue tout de même le capot suiveur 2, la tige de mise à la terre 1, les colonnettes 3, le carter guide 9 et la bielle d'entraînement 8.  FIG. 2 shows the same assembly as FIG. 1, with the exception of the fixed contact 20. However, a part of the guide casing 9 has been put back in its place and thus hides the inside of the assembly, in particular the system of FIG. 'training. There is still the follower cover 2, the ground rod 1, the columns 3, the guide housing 9 and the drive rod 8.
La figure 3 montre en détail le mécanisme du système d'entraînement selon l'invention. L'organe principal est donc la gâchette 6 montée pivotante autour de l'axe de gâchette 6A monté perpendiculairement sur la tige de mise à la terre 1.  Figure 3 shows in detail the mechanism of the drive system according to the invention. The main member is therefore the trigger 6 pivotally mounted around the trigger axis 6A mounted perpendicular to the grounding rod 1.
Une première extrémité dite de butée 6B de la gâchette 6 possède une forme ronde appelée rouleau 5. L'orientation de cette extrémité de butée 6B est telle que, quelle que soit la position angulaire de la gâchette 6, le rouleau 5 se trouve sur la trajectoire d'une butée 10A du porte-colonnettes 10 et placé à l'opposée du capot suiveur par rapport au rouleau 5.  A first end called stop 6B of the trigger 6 has a round shape called roll 5. The orientation of this end stop 6B is such that, whatever the angular position of the trigger 6, the roller 5 is on the trajectory of an abutment 10A of the column-holder 10 and placed at the opposite of the follower cap with respect to the roller 5.
Une deuxième extrémité dite de blocage 6C, est décalée angulairement par rapport à la première extrémité de butée 6B de la gâchette, d'un angle d'environ 90°. Cette deuxième extrémité de blocage 6C a une forme de crochet de manière à pouvoir, après pivotement de la gâchette 6 dans le sens trigonométrique par rapport à cette figure 3, aller sur la trajectoire de la butée 10A du porte-colonnette 10. Lors du fonctionnement de l'ensemble, pour une fermeture dudit dispositif de mise à la terre, la bielle de manoeuvre 8 est actionnée par un motoréducteur non représenté. Elle entraîne en translation longitudinale le coulisseau 7 portant la tige de mise à la terre 1. Au début de cette opération, la gâchette 6 a une position différente de celle représentée sur cette figure 3, c'est-à-dire un décalage angulaire dans le sens trigonométrique . De ce fait, l'extrémité de blocage 6C passe sous la butée 10A du porte-colonnette 10. En conséquence, dès le début de l'entraînement du coulisseau 7 par la bielle de manoeuvre 8, le porte-colonnettes 10 est entraîné en translation avec la tige de mise à la terre 1. De ce fait, le capot suiveur suit la tige de mise à la terre 1. La gâchette 6 est maintenue dans cette position, dite fermée par un ressort de rappel non représenté sur ces figures. Sur la figure 3, la gâchette 6 n'est pas en position fermée, mais est dans une position ouverte. A second so-called locking end 6C is angularly offset relative to the first end stop 6B of the trigger, at an angle of about 90 °. This second locking end 6C has a hook shape so as to be able, after pivoting of the trigger 6 in the trigonometric direction with respect to this FIG. 3, to go on the path of the abutment 10A of the column-holder 10. During operation of the assembly, for a closure of said grounding device, the operating rod 8 is actuated by a geared motor not shown. It drives in longitudinal translation the slider 7 carrying the earth rod 1. At the beginning of this operation, the trigger 6 has a position different from that shown in this FIG. 3, that is to say an angular offset in the trigonometric sense. As a result, the locking end 6C passes under the abutment 10A of the column-holder 10. Consequently, from the beginning of the driving of the slider 7 by the operating rod 8, the column-holder 10 is driven in translation. With the ground rod 1. As a result, the follower cover follows the earth rod 1. The trigger 6 is held in this position, said closed by a return spring not shown in these figures. In FIG. 3, the trigger 6 is not in the closed position, but is in an open position.
Lors de cette phase de fermeture, après un déplacement d'une longueur déterminée, le rouleau 5 de la gâchette 6 vient en appui sur une butée 9A du carter guide 9, placée sur le chemin du rouleau 5, du côté du capot suiveur. Ceci a pour effet de faire pivoter la gâchette 6 dans le sens des aiguilles d'une montre et donc de libérer le porte-colonnettes 10. La tige de mise à la terre 1 continue son déplacement seule, alors que le porte-colonnettes 10 est stoppé par des amortisseurs 4 se trouvant sur son chemin longitudinal, du côté du capot suiveur. De ce fait, le déplacement des colonnettes 10 et du capot suiveur est donc stoppé, alors que la tige de mise à la terre 1 est arrivée en contact avec le contact fixe du dispositif de mise à la terre . During this closing phase, after a displacement of a predetermined length, the roller 5 of the trigger 6 abuts on a stop 9A of the guide housing 9, placed on the path of the roller 5, on the side of the follower cover. This has the effect of turning the trigger 6 clockwise and thus to release the column-holder 10. The earth rod 1 continues its displacement alone, while the column-holder 10 is stopped by dampers 4 located on its longitudinal path, the side of the follower hood. As a result, the displacement of the posts 10 and the follower cover is thus stopped, while the ground rod 1 has come into contact with the fixed contact of the grounding device.
En phase d'ouverture du dispositif de la mise à la terre rapide, la bielle manœuvre 8 entraîne l'ensemble de la tige de mise à la terre 1, par l'intermédiaire du coulisseau 7 dans le sens opposé, c'est-à-dire vers la droite sur la figure 3. A un déplacement déterminé vers la droite, le rouleau 5 vient en contact avec une butée 10A du porte-colonnette 10, ce qui a pour effet de faire pivoter la gâchette 6 dans le sens trigonométrique et de la remettre en position fermée, l'extrémité 6C de la gâchette 6 remontant à droite de la butée 10A du porte-colonnette 10. Ce dernier est donc entraîné conjointement avec la tige de mise à la terre 1 jusqu'à la position d'ouverture du dispositif de mise à la terre emmenant également les colonnettes 10 et le capot suiveur. Avantages de l'invention  In the opening phase of the rapid grounding device, the connecting rod 8 drives the assembly of the earth rod 1, via the slider 7 in the opposite direction, that is to say 3. At a determined displacement to the right, the roller 5 comes into contact with a stop 10A of the column-holder 10, which has the effect of rotating the trigger 6 in the trigonometrical direction and to put it back in the closed position, the end 6C of the trigger 6 going up to the right of the abutment 10A of the column-holder 10. The latter is thus driven together with the earth rod 1 to the position of opening of the grounding device also carrying the columns 10 and the follower cover. Advantages of the invention
Les différentes courses de la tige de mise à la terre et du capot suiveur peuvent être facilement adaptées aux besoins de chaque dispositif. The different strokes of the grounding rod and the follower hood can be easily adapted to the needs of each device.
II n'y a pas de risque majeur de modifications de ces courses et de ces déplacements dans le temps, comparativement à une éventuelle solution d'entraînement par frottement d'un ressort.  There is no major risk of changes in these races and displacements in time, compared to a possible solution of friction drive of a spring.
Il est à noter que, même en cas de défaut du ressort de maintien de la gâchette 6, celle-ci entraînera automatiquement le porte-colonnettes 10, lors de l'ouverture du dispositif de mise à la terre rapide. Cela a pour effet de garantir que le capot suiveur est bien revenu à sa position initiale malgré ce défaut. It should be noted that, even in the event of a fault in the trigger holding spring 6, the triggering spring 6 will automatically cause the balancer holder 10, when opening the quick ground device. This has the effect of ensuring that the follower cover has returned to its original position despite this defect.
Le mécanisme de ce système est relativement simple et permet d'être utilisé sur des dispositifs de commande de mise à la terre existant et peut être d'une compacité relativement faible.  The mechanism of this system is relatively simple and can be used on existing earthing control devices and can be of relatively low compactness.
Enfin, comme la position relative du capot suiveur par rapport à la tige de mise à la terre est réglable au niveau de la longueur des colonettes, ce système peut être adapté à n' importe quel type de commande de mise à la terre.  Finally, since the relative position of the follower cover relative to the ground rod is adjustable at the length of the columns, this system can be adapted to any type of ground control.

Claims

REVENDICATIONS
1. Système d'entraînement d'un capot suiveur (2) pour un dispositif de mise à la terre rapide, ce dernier comprenant : A driving system for a follower cover (2) for a rapid grounding device, the latter comprising:
-un carter guide (9) qui est fixe ;  a guide casing (9) which is fixed;
-une tige de mise à la terre (1) montée coulissante longitudinalement par rapport au carter guide (9) pour pouvoir être mise en contact avec un contact fixe (20) du dispositif de mise à la terre ;  a grounding rod (1) slidably mounted longitudinally with respect to the guide housing (9) so as to be brought into contact with a fixed contact (20) of the grounding device;
-un capot suiveur (2) placé coaxialement à la tige de mise à la terre (1), autour d'elle et destiné à suivre cette tige de mise à la terre (1) sur une partie déterminée de sa course, et  a follower cover (2) placed coaxially with the grounding rod (1), around it and intended to follow this grounding rod (1) over a determined part of its travel, and
-un coulisseau (7) sur lequel est fixé la tige de mise à la terre (1), entraîné par une bielle de manœuvre (8) et coulissant longitudinalement par rapport au carter guide (9),  a slider (7) on which is fixed the grounding rod (1), driven by an operating rod (8) and sliding longitudinally with respect to the guide housing (9),
le système étant caractérisé en ce qu' il comprend :  the system being characterized in that it comprises:
-une gâchette (6) pivotante, autour d'un axe de gâchette (6A) fixé perpendiculairement sur la tige de mise à la terre (1), la gâchette comprenant elle-même :  a trigger (6) pivoting about a trigger axis (6A) perpendicularly fixed to the grounding rod (1), the trigger comprising itself:
*une première extrémité dite de butée a first end of said abutment
(6B) et (6B) and
*une deuxième extrémité dite de blocage (6C) décalée angulairement par rapport à la première extrémité de butée (6B) d'environ 90°,  a second so-called locking end (6C) angularly offset relative to the first abutment end (6B) by approximately 90 °,
-une butée fixe (9A) du carter guide (9) placée sur le chemin de l'extrémité de butée (6B) de la gâchette (6) pour faire pivoter la gâchette dans un premier sens déterminé au moment où le capot suiveur (2) doit s'arrêter pendant la fermeture du dispositif de mise à la terre et libérer ainsi le capot suiveur (2), et a fixed stop (9A) of the guide housing (9) placed on the path of the stop end (6B) of the trigger (6) for rotating the trigger in a first direction determined at the moment when the follower cover (2) must stop during the closing of the grounding device and thus release the follower cover (2), and
-une butée mobile (10A) solidaire du capot suiveur (2) et placée sur le chemin de l'extrémité de butée (6B) de la gâchette (6), placée du côté opposé à la butée fixe (9A) par rapport à l'extrémité de butée (6B) de la gâchette pour faire pivoter la gâchette (6) dans un deuxième sens opposé au premier sens, lors de l'ouverture du dispositif de mise à la terre et entraîner le capot suiveur (2) conjointement à la tige de mise à la terre (1) .  a movable stop (10A) integral with the follower cover (2) and placed on the path of the stop end (6B) of the trigger (6), placed on the opposite side to the fixed stop (9A) relative to the stop end (6B) of the trigger for pivoting the trigger (6) in a second opposite direction to the first direction, upon opening of the earthing device and driving the follower cover (2) together with the ground rod (1).
2. Système selon la revendication 1, caractérisé en ce que le capot suiveur (2) est fixé à des colonnettes (3) , elles-mêmes fixées sur une pièce porte-colonnette (10) montée coulissante longitudinalement et comportant la butée (10A) susceptible d'être entraînée par l'extrémité de blocage (6C) et par l'extrémité de butée (6B) de la gâchette (6) . 2. System according to claim 1, characterized in that the follower cover (2) is fixed to the columns (3), themselves fixed on a column-holder piece (10) slidably mounted longitudinally and having the stop (10A). capable of being driven by the locking end (6C) and the stop end (6B) of the trigger (6).
EP14709227.4A 2013-03-05 2014-03-04 System for driving a follower cap by means of a trigger for a high-voltage grounding device Not-in-force EP2965339B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1351940A FR3003096B1 (en) 2013-03-05 2013-03-05 SPEED HOOD DRIVE SYSTEM FOR A HIGH VOLTAGE GROUNDING DEVICE
PCT/EP2014/054168 WO2014135533A1 (en) 2013-03-05 2014-03-04 System for driving a follower cap by means of a trigger for a high-voltage grounding device

Publications (2)

Publication Number Publication Date
EP2965339A1 true EP2965339A1 (en) 2016-01-13
EP2965339B1 EP2965339B1 (en) 2017-02-22

Family

ID=48570298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14709227.4A Not-in-force EP2965339B1 (en) 2013-03-05 2014-03-04 System for driving a follower cap by means of a trigger for a high-voltage grounding device

Country Status (3)

Country Link
EP (1) EP2965339B1 (en)
FR (1) FR3003096B1 (en)
WO (1) WO2014135533A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3159909A1 (en) * 2015-10-19 2017-04-26 Siemens Aktiengesellschaft Earthing switch for high-voltage electrical switchgear

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2453194A1 (en) * 1974-11-09 1976-05-13 Bbc Brown Boveri & Cie Disconnecting switch safety earthing switch - has spring force drive actuated by common drive shaft in sequential manner
JPH0928011A (en) * 1995-07-13 1997-01-28 Fuji Electric Co Ltd Disconnector and grounding switch for gas insulated switchgear
DE102006017131A1 (en) * 2006-04-12 2007-10-18 Areva Energietechnik Gmbh Three-position switch, in particular for a medium or high-voltage switchgear

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014135533A1 *

Also Published As

Publication number Publication date
WO2014135533A1 (en) 2014-09-12
EP2965339B1 (en) 2017-02-22
FR3003096B1 (en) 2015-04-17
FR3003096A1 (en) 2014-09-12

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