EP0332145A1 - Control device for a circuit breaker - Google Patents

Control device for a circuit breaker Download PDF

Info

Publication number
EP0332145A1
EP0332145A1 EP89104014A EP89104014A EP0332145A1 EP 0332145 A1 EP0332145 A1 EP 0332145A1 EP 89104014 A EP89104014 A EP 89104014A EP 89104014 A EP89104014 A EP 89104014A EP 0332145 A1 EP0332145 A1 EP 0332145A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
spring
hand
frame
cylindrical body
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
EP89104014A
Other languages
German (de)
French (fr)
Other versions
EP0332145B1 (en
Inventor
Michel Perret
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.)
Alstom Holdings SA
Original Assignee
Alstom SA
GEC Alsthom SA
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 SA, GEC Alsthom SA filed Critical Alstom SA
Priority to AT89104014T priority Critical patent/ATE92669T1/en
Publication of EP0332145A1 publication Critical patent/EP0332145A1/en
Application granted granted Critical
Publication of EP0332145B1 publication Critical patent/EP0332145B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005—Charging means
    • H01H3/3026—Charging means in which the closing spring charges the opening spring or vice versa
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3094—Power arrangements internal to the switch for operating the driving mechanism using spring motor allowing an opening - closing - opening [OCO] sequence

Definitions

  • the present invention relates to a circuit breaker control device, of the type comprising a tripping spring and a latching spring.
  • a motor supplies energy to a latching spring.
  • the interlocking spring then supplies part of its energy to a tripping spring; this energy transfer requires the presence of various mechanical organs and in particular a cam which at the end of energy transfer, must be erased to allow the subsequent operation of the trigger spring.
  • An object of the invention is to provide a control device in which all the parts have a common axis of symmetry, which provides advantages in terms of economy of construction and assembly.
  • a mechanical control device for a circuit breaker comprising a latching spring and a tripping spring, and hydraulic means for transmitting part of the energy from the latching spring to said tripping spring.
  • a mechanical control device for a circuit breaker comprising a latching spring and a tripping spring, and hydraulic means for transmitting part of the energy from the latching spring to said tripping spring.
  • it comprises a part, movable relative to a fixed frame, and comprising a rod connected to an operating rod of the circuit breaker and a first cylinder, said first cylinder being closed by a piston extended by a body of revolution being able to slide in leaktight fashion around a crown integral with said frame, the trigger spring surrounding said first cylinder and bearing on the one hand on said frame and on the other hand on a crown integral with said first cylinder, the engagement spring being placed inside the cylindrical body and bearing on the one hand on said piston and on the other hand on said crown integral with the frame, the volumes inside the first cylinder and said cylindrical body being filled with
  • FIG. 1 there is a movable part 1 comprising a rod 1A connected to the control rod not shown of the circuit breaker to be controlled.
  • the movable part further comprises a cylindrical portion 1B, of internal diameter D1, provided with an external crown 1C serving to support a first end of a spring 2 which constitutes the triggering spring.
  • the other end of the spring rests on a frame 3 serving also of guide piece for the cylinder 1B and the rod 1A.
  • a crown 1D on the rod 1A serves as an end-of-travel stop for the movable part during the tripping phase of the circuit breaker.
  • a part 4 which comprises a body of revolution made up of two coaxial cylinders 4A, 4′A and a piston 4B.
  • the piston 4B defines with the cylinder 1B a variable volume V1.
  • the piston is sealed using a sliding seal 5.
  • the cylinder 4A is guided by a fixed part 7 secured to the frame of the control and carrying a crown 7A sliding in the cylinder 4′A and serving on the one hand to support a first end of a second spring 8 and d 'other part of tight sealing volume V2 defined by the cylinder 4A and the piston 4B.
  • the diameter D2 of the crown 7A is equal to the internal diameter D1 of the cylinder 1B.
  • the diameter of the cylindrical portion 4′A is greater than that of the cylinder 4A.
  • the seal is ensured by a seal 9.
  • the spring 8 is the interlocking spring; its second end rests on the piston 4B.
  • the piston 4B has an opening 10 which can be closed by a valve 11 pushed by a spring 12 pressing on the fixed part 7 and guided by a rod 11A sliding in the part 7 in leaktight manner thanks to a seal 7B.
  • the piston 4B further comprises a valve 13 allowing passage from volume V2 to volume V1 and preventing passage in the opposite direction.
  • the volumes V1 and V2 are filled with a liquid 6 such as cylinder oil.
  • a motor 15 driving a cam 16 cooperating with a lug 4D of the cylinder 4 to reset the control member, - an electromagnet 18 to move a latching member cooperating with the crown 1C to release the trigger spring 2. - an electromagnet 20 for moving a fastening member cooperating with a lug 4C of the cylinder 4 to control the operation of the engagement spring 8.
  • control device The operation of the control device is described below.
  • the electromagnet 20 which releases the lug 4C is actuated, the spring 8 expands (FIG. 2) and pushes the piston 4B which, by relying on the liquid of the volume V1, drives the moving part 1 which causes the drive of the rod 1A (closing of the circuit breaker) and the compression of the trigger spring 2.
  • the spring 12 pressed the valve against its seat, thus ensuring the tightness of the volume V1.
  • the stroke of the valve 11 is less than the compression stroke of the spring 8; as soon as the stroke of the valve 11 is finished, by contacting an end-of-stroke stop 11A against the fixed part 7, the opening 10 and released and the liquid of the volume V1 passes entirely into the volume V2. The passage is accelerated thanks to the vacuum created under the piston 4B.
  • the oil has completely filled volume V2. Its surface 22 is surmounted by a vacuum height H equal to the stroke of the piston, itself equal to the stroke of the rod 1A.
  • the electromagnet 18 is actuated and releases the attachment of the stop 1C.
  • the spring 2 relaxes and drives the movable part 1 secured to the operating rod of the circuit breaker.
  • the cam 16 drives the stop 1C causing the part 4 to move with compression of the springs 8 to 12 until the part 4 is hooked by its stop 4C to the electromagnet 20.
  • valve 11 is again pressed against its seat, the liquid passing from the volume V2 to the volume V1 by the valve 13.
  • the circuit breaker In the position of FIG. 5, the circuit breaker is ready to carry out an open-close-open cycle (OFO), the first opening taking place as described with reference to FIG. 4, the closing being carried out as described with reference to the figures. 2 and 3, the second opening operating as described with reference to FIG. 4.
  • OFO open-close-open cycle
  • the device of the invention achieves the goals set and in particular a simple and reliable construction and high efficiency.
  • the device can be coupled to the mechanical energy storage device with zero latching force described in French patent application No. 87 03 037 filed March 17, 1987 in the name of the applicant.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electronic Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Breakers (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

Mechanical control device for a circuit-breaker comprising a locking spring (8) and an unlocking spring (2) and hydraulic means of transmitting part of the energy of the locking spring to the said unlocking spring, characterised in that it possesses a rotational symmetry. <IMAGE>

Description

La présente invention concerne un dispositif de commande de disjoncteur, du type comprenant un ressort de déclenchement et un ressort d'enclenchement.The present invention relates to a circuit breaker control device, of the type comprising a tripping spring and a latching spring.

Dans un dispositif de ce type, un moteur fournit de l'énergie à un ressort d'enclenchement. Le ressort d'enclenchement fournit ensuite une partie de son énergie à un ressort de déclenchement ; ce transfert d'énergie nécessite la présence de divers organes mécaniques et en particulier d'une came qui en fin de transfert d'énergie, doit s'effacer pour permettre le fonctionnement ultérieur du ressort de déclenchement.In a device of this type, a motor supplies energy to a latching spring. The interlocking spring then supplies part of its energy to a tripping spring; this energy transfer requires the presence of various mechanical organs and in particular a cam which at the end of energy transfer, must be erased to allow the subsequent operation of the trigger spring.

Ces organes mécaniques sont sujets à des jeux et à usure nécessitant des réglages et un entretien et possèdent un mauvais rendement. Il est souhaitable de remplacer les organes mécaniques de transfert par des moyens exempts de jeu et d'usure.These mechanical parts are subject to play and wear requiring adjustments and maintenance and have poor performance. It is desirable to replace the mechanical transfer members by means free from play and wear.

Il a été proposé, en particulier par le document DT 2361972A1 de réaliser une commande dans laquelle le ressort d'enclenchement transmet une partie de son énergie au ressort de déclenchement par voie hydraulique. Mais la réalisation proposée est complexe et onéreuse.It has been proposed, in particular by document DT 2361972A1, to carry out a control in which the engagement spring transmits part of its energy to the trigger spring by hydraulic means. But the proposed realization is complex and expensive.

Un but de l'invention est de réaliser un dispositif de commande dans laquelle toutes les pièces ont un axe de symétrie commun, ce qui procure des avantages d'économie de réalisation et de montage.An object of the invention is to provide a control device in which all the parts have a common axis of symmetry, which provides advantages in terms of economy of construction and assembly.

Les buts de l'invention sont obtenus en réalisant un dispositif de commande mécanique pour disjoncteur comprenant un ressort d'enclenchement et un ressort de déclenchement, et des moyens hydrauliques pour transmettre une partie de l'énergie du ressort d'enclenchement audit ressort de déclenchement, caractérisé en ce qu'il comprend une pièce, mobile par rapport à un bâti fixe, et comportant une tige reliée à une tringle de manoeuvre du disjonc­teur et un premier cylindre, ledit premier cylindre étant fermé par un piston prolongé par un corps de révolution pouvant coulisser de manière étanche autour d'une couronne solidaire dudit bâti, le ressort de déclenchement entourant ledit premier cylindre et venant en appui d'une part sur ledit bâti et d'autre part sur une couronne solidaire dudit premier cylindre, le ressort d'enclenchement étant placé à l'intérieur du corps cylindrique et s'appuyant d'une part sur ledit piston et d'autre part sur ladite couronne solidaire du bâti, les volumes intérieurs au premier cylindre et audit corps cylindriques étant rempli d'un liquide et pouvant être mis en communication d'une part par un orifice du piston obturable par une valve et d'autre part par un clapet n'autorisant le passage du liquide que dans le sens du corps cylindrique vers le premier cylindre.The objects of the invention are obtained by providing a mechanical control device for a circuit breaker comprising a latching spring and a tripping spring, and hydraulic means for transmitting part of the energy from the latching spring to said tripping spring. , characterized in that it comprises a part, movable relative to a fixed frame, and comprising a rod connected to an operating rod of the circuit breaker and a first cylinder, said first cylinder being closed by a piston extended by a body of revolution being able to slide in leaktight fashion around a crown integral with said frame, the trigger spring surrounding said first cylinder and bearing on the one hand on said frame and on the other hand on a crown integral with said first cylinder, the engagement spring being placed inside the cylindrical body and bearing on the one hand on said piston and on the other hand on said crown integral with the frame, the volumes inside the first cylinder and said cylindrical body being filled with a liquid and being able to be placed in communication on the one hand by an orifice of the piston closable by a valve and on the other hand by a valve allowing the passage of the liquid only in the direction of the cylindrical body towards the first cylinder.

L'invention sera bien comprise par la description ci-après d'un mode préféré de réalisation de l'invention, en référence au dessin annexé dans lequel :

  • - la figure 1 est une vue schématique en coupe axiale d'un dispositif de commande selon l'invention, le ressort de déclenchement étant débandé et le ressort d'enclenchement bandé.
  • - la figure 2 est une vue schématique du même dispositif de commande, en cours d'enclenchement.
  • - la figure 3 est une vue schématique du même dispositif de commande en fin de phase d'enclenchement.
  • - la figure 4 est une vue schématique du même dispositif de commande en fin de phase d'ouverture du disjoncteur, le ressort d'enclenchement détendu.
  • - la figure 5 est une vue schématique du même dispositif de commande avec ressorts d'enclenchement et de déclenchement bandés.
The invention will be better understood from the description below of a preferred embodiment of the invention, with reference to the appended drawing in which:
  • - Figure 1 is a schematic view in axial section of a control device according to the invention, the trigger spring being released and the engagement spring banded.
  • - Figure 2 is a schematic view of the same control device, during engagement.
  • - Figure 3 is a schematic view of the same control device at the end of the engagement phase.
  • - Figure 4 is a schematic view of the same control device at the end of the circuit breaker opening phase, the tensioned release spring.
  • - Figure 5 is a schematic view of the same control device with banded engagement and trigger springs.

Dans la figure 1, on distingue une partie mobile 1 comprenant une tige 1A reliée à la tige de commande non représentée du disjonc­teur à commander.In Figure 1, there is a movable part 1 comprising a rod 1A connected to the control rod not shown of the circuit breaker to be controlled.

La partie mobile comprend en outre une portion cylindrique 1B, de diamètre intérieur D1, munie d'une couronne extérieure 1C servant d'appui à une première extrémité d'un ressort 2 qui constitue le ressort de déclenchement.The movable part further comprises a cylindrical portion 1B, of internal diameter D1, provided with an external crown 1C serving to support a first end of a spring 2 which constitutes the triggering spring.

L'autre extrémité du ressort s'appui sur un bâti 3 servant également de pièce de guidage pour le cylindre 1B et la tige 1A. Une couronne 1D sur la tige 1A sert de butée de fin de course de la partie mobile lors de la phase de déclenchement du disjoncteur.The other end of the spring rests on a frame 3 serving also of guide piece for the cylinder 1B and the rod 1A. A crown 1D on the rod 1A serves as an end-of-travel stop for the movable part during the tripping phase of the circuit breaker.

A l'intérieur du cylindre 1B peut coulisser une pièce 4 qui comprend un corps de révolution constitué de deux cylindres 4A, 4′A coaxiaux et un piston 4B. Le piston 4B délimite avec le cylindre 1B un volume variable V1. L'étanchéité du piston est obtenue grâce à un joint coulissant 5.Inside the cylinder 1B can slide a part 4 which comprises a body of revolution made up of two coaxial cylinders 4A, 4′A and a piston 4B. The piston 4B defines with the cylinder 1B a variable volume V1. The piston is sealed using a sliding seal 5.

Le cylindre 4A, est guidé par une pièce fixe 7 solidaire du bâti de la commande et portant une couronne 7A coulissant dans le cylindre 4′A et servant d'une part d'appui à une première extrémité d'un second ressort 8 et d'autre part de fermeture étanche au volume V2 délimité par le cylindre 4A et le piston 4B. Le diamètre D2 de la couronne 7A est égal au diamètre intérieur D1 du cylindre 1B. Pour cela, le diamètre de la portion cylindrique 4′A est supérieur à celui du cylindre 4A. L'étanchéité est assurée par un joint 9. Le ressort 8 est le ressort d'enclenchement ; sa seconde extrémité s'appuie sur le piston 4B.The cylinder 4A is guided by a fixed part 7 secured to the frame of the control and carrying a crown 7A sliding in the cylinder 4′A and serving on the one hand to support a first end of a second spring 8 and d 'other part of tight sealing volume V2 defined by the cylinder 4A and the piston 4B. The diameter D2 of the crown 7A is equal to the internal diameter D1 of the cylinder 1B. For this, the diameter of the cylindrical portion 4′A is greater than that of the cylinder 4A. The seal is ensured by a seal 9. The spring 8 is the interlocking spring; its second end rests on the piston 4B.

Le piston 4B comporte une ouverture 10 pouvant être fermée par une valve 11 poussée par un ressort 12 s'appuyant sur la pièce fixe 7 et guidée par une tige 11A coulissant dans la pièce 7 de manière étanche grâce à un joint 7B.The piston 4B has an opening 10 which can be closed by a valve 11 pushed by a spring 12 pressing on the fixed part 7 and guided by a rod 11A sliding in the part 7 in leaktight manner thanks to a seal 7B.

Le piston 4B comprend en outre un clapet 13 autorisant le passage du volume V2 au volume V1 et interdisant le passage en sens inverse.The piston 4B further comprises a valve 13 allowing passage from volume V2 to volume V1 and preventing passage in the opposite direction.

Les volumes V1 et V2 sont remplis d'un liquide 6 tel que l'huile de vérin.The volumes V1 and V2 are filled with a liquid 6 such as cylinder oil.

On a représenté schématiquement :
- un moteur 15 entraînant une came 16 coopérant avec un ergot 4D du cylindre 4 pour assurer le réarmement de l'organe de commande,
- un électro-aimant 18 pour déplacer un organe d'accrochage coopérant avec la couronne 1C pour libérer le ressort de déclenche­ment 2.
- un électro-aimant 20 pour déplacer un organe d'accrochage coopérant avec un ergot 4C du cylindre 4 pour commander le fonction­nement du ressort d'enclenchement 8.We have represented schematically:
a motor 15 driving a cam 16 cooperating with a lug 4D of the cylinder 4 to reset the control member,
- an electromagnet 18 to move a latching member cooperating with the crown 1C to release the trigger spring 2.
- an electromagnet 20 for moving a fastening member cooperating with a lug 4C of the cylinder 4 to control the operation of the engagement spring 8.

Le fonctionnement du dispositif de commande est décrit ci-après.The operation of the control device is described below.

Dans la figure 1, le ressort de déclenchement est détendu (le disjoncteur est ouvert) la butée 1D est en appui sur le bâti ; les volumes V1 et V2 sont emplis de liquide, la valve 11 est fermée par appui du ressort 12 le ressort 8 d'enclenchement est bandé et le cylindre 4A est maintenu par l'accrochage de l'électro-­aimant 20.In Figure 1, the trigger spring is relaxed (the circuit breaker is open) the stopper 1D is supported on the frame; the volumes V1 and V2 are filled with liquid, the valve 11 is closed by pressing the spring 12 the engagement spring 8 is bandaged and the cylinder 4A is held by the attachment of the electromagnet 20.

Pour comprimer le ressort de déclenchement 2, (qui a une force inférieure à celle du ressort d'enclenchement 8), on actionne l'électro-aimant 20 qui libère l'ergot 4C, le ressort 8 se détend (figure 2) et pousse le piston 4B qui, en s'appuyant sur le liquide du volume V1, entraîne la pièce mobile 1 qui provoque l'entraînement de la tige 1A (fermeture du disjoncteur) et la compression du ressort de déclenchement 2. Pendant cette phase, le ressort 12 à plaqué la valve contre son siège, assurant ainsi l'étanchéité du volume V1.To compress the trigger spring 2 (which has a lower force than that of the engagement spring 8), the electromagnet 20 which releases the lug 4C is actuated, the spring 8 expands (FIG. 2) and pushes the piston 4B which, by relying on the liquid of the volume V1, drives the moving part 1 which causes the drive of the rod 1A (closing of the circuit breaker) and the compression of the trigger spring 2. During this phase, the spring 12 pressed the valve against its seat, thus ensuring the tightness of the volume V1.

La course de la valve 11 est inférieure à la course de compression du ressort 8 ; dès que la course de la valve 11 est terminée, par contact d'une butée de fin de course 11A contre la pièce fixe 7, l'ouverture 10 et libérée et le liquide du volume V1 passe entièrement dans le volume V2. Le passage est accéléré grâce au vide qui s'est créé sous le piston 4B.The stroke of the valve 11 is less than the compression stroke of the spring 8; as soon as the stroke of the valve 11 is finished, by contacting an end-of-stroke stop 11A against the fixed part 7, the opening 10 and released and the liquid of the volume V1 passes entirely into the volume V2. The passage is accelerated thanks to the vacuum created under the piston 4B.

En fin de compression du ressort de déclenchement 2, la butée 1C de la pièce mobile dépasse l'organe d'accrochage de l'électro-aimant 18 ; puis la pièce mobile 1, sous l'action du ressort 2 revient légèrement en arrière et s'arrête, par sa butée 1C, sur l'organe d'accrochage de l'électro-aimant 18 (figure 3).At the end of compression of the trigger spring 2, the stop 1C of the moving part exceeds the attachment member of the electromagnet 18; then the moving part 1, under the action of the spring 2 slightly backwards and stops, by its stop 1C, on the attachment member of the electromagnet 18 (Figure 3).

L'huile a complètement rempli le volume V2. Sa surface 22 est surmontée d'une hauteur de vide H égale à la course du piston, elle-même égale à la course de la tige 1A.The oil has completely filled volume V2. Its surface 22 is surmounted by a vacuum height H equal to the stroke of the piston, itself equal to the stroke of the rod 1A.

A partir de la position de la figure 3 (disjoncteur fermé, ressort de déclenchement bandé), il est possible soit d'opérer une manoeuvre d'ouverture du disjoncteur, soit d'opérer une mise en route du dispositif de réarmement 15, 16 pour rebander le ressort d'enclenchement 8.From the position of figure 3 (circuit breaker closed, triggered spring loaded), it is possible either to operate an operation of opening the circuit breaker, or of operating a reset device 15, 16 to reboot the engagement spring 8.

La manoeuvre d'ouverture est décrite en référence à la figure 4.The opening operation is described with reference to Figure 4.

L'électro-aimant 18 est actionné et libère l'accrochage de la butée 1C. Le ressort 2 se détend et entraîne la pièce mobile 1 solidaire de la tige de manoeuvre du disjoncteur.The electromagnet 18 is actuated and releases the attachment of the stop 1C. The spring 2 relaxes and drives the movable part 1 secured to the operating rod of the circuit breaker.

En fin de course de la pièce 1, la butée 1D vient en appui sur le bâti 3.At the end of travel of the part 1, the stop 1D comes to bear on the frame 3.

Tous les ressorts sont détendus ; le liquide occupe tout le volume délimité par les pièces 1B, 4A et 7A. C'est d'ailleurs dans cette position qu'on a procédé au remplissage grâce à une ouverture 1E dans le fond du cylindre 1B fermée par un bouchon 23.All the springs are relaxed; the liquid occupies the entire volume delimited by parts 1B, 4A and 7A. It is moreover in this position that the filling was carried out by means of an opening 1E in the bottom of the cylinder 1B closed by a plug 23.

A partir de l'état représenté dans la figure 3 on peut opérer une mise en route du dispositif de réarmement 15, 16 comme il est montré dans la figure 5.From the state shown in FIG. 3, it is possible to start up the reset device 15, 16 as shown in FIG. 5.

La came 16 entraîne la butée 1C provoquant le déplacement de la pièce 4 avec compression des ressorts 8 à 12 jusqu'à accrochage de la pièce 4 par sa butée 4C à l'électro-aimant 20.The cam 16 drives the stop 1C causing the part 4 to move with compression of the springs 8 to 12 until the part 4 is hooked by its stop 4C to the electromagnet 20.

Pendant cette opération, la valve 11 est à nouveau plaquée sur son siège, le liquide passant du volume V2 au volume V1 par le clapet 13.During this operation, the valve 11 is again pressed against its seat, the liquid passing from the volume V2 to the volume V1 by the valve 13.

Le niveau d'huile dans le volume V1 reste inchangé en raison de l'égalité des diamètres D1 et D2.The oil level in volume V1 remains unchanged due to the equality of diameters D1 and D2.

Dans la position de la figure 5, le disjoncteur est prêt à effectuer un cycle ouverture-fermeture-ouverture (OFO), la première ouverture se déroulant comme décrit en référence à la figure 4, la fermeture s'effectuant comme décrit en référence aux figures 2 et 3, la seconde ouverture s'opérant comme décrit en référence à la figure 4.In the position of FIG. 5, the circuit breaker is ready to carry out an open-close-open cycle (OFO), the first opening taking place as described with reference to FIG. 4, the closing being carried out as described with reference to the figures. 2 and 3, the second opening operating as described with reference to FIG. 4.

Le dispositif de l'invention permet d'atteindre les buts fixés et notamment une construction simple et fiable et de rendement élevé.The device of the invention achieves the goals set and in particular a simple and reliable construction and high efficiency.

En effet toutes les pièces sont de révolution et la pression de l'huile lors de l'enclenchement est faible (quelques bars).Indeed all the parts are of revolution and the pressure oil during switching on is low (a few bars).

Le dispositif peut être couplé au dispositif de stockage d'énergie mécanique à force d'accrochage nulle décrit dans la demande de brevet français n° 87 03 037 déposée le 17 mars 1987 au nom de la demanderesse.The device can be coupled to the mechanical energy storage device with zero latching force described in French patent application No. 87 03 037 filed March 17, 1987 in the name of the applicant.

Claims (4)

1/ Dispositif de commande mécanique pour disjoncteur comprenant un ressort d'enclenchement (8) et un ressort de déclenchement (2), et des moyens hydrauliques pour transmettre une partie de l'énergie du ressort d'enclenchement (8) audit ressort de déclenchement (2), caractérisé en ce qu'il comprend une pièce (1), mobile par rapport à un bâti fixe (3), et comportant une tige (1A) reliée à une tringle de manoeuvre du disjoncteur et un premier cylindre (1B), ledit premier cylindre étant fermé par un piston (4B) prolongé par un corps de révolution (4A, 4′A) pouvant coulisser de manière étanche autour d'une couronne (7a) solidaire dudit bâti, le ressort de déclenchement (2) entourant ledit premier cylindre (1B) et venant en appui d'une part sur ledit bâti et d'autre part sur une couronne (1C) solidaire dudit premier cylindre, le ressort d'enclenchement (8) étant placé à l'intérieur du corps cylindri­que (4A) et s'appuyant d'une part sur ledit piston et d'autre part sur ladite couronne (7A) solidaire du bâti, les volumes (V1, V2) intérieurs au premier cylindre et audit corps cylindriques étant rempli d'un liquide (6) et pouvant être mis en communication d'une part par un orifice (10) du piston obturable par une valve (11) et d'autre part par un clapet (13) n'autorisant le passage du liquide que dans le sens du corps cylindrique vers le premier cylindre.1 / Mechanical control device for a circuit breaker comprising an engagement spring (8) and a trigger spring (2), and hydraulic means for transmitting part of the energy from the engagement spring (8) to said trigger spring (2), characterized in that it comprises a part (1), movable relative to a fixed frame (3), and comprising a rod (1A) connected to an operating rod of the circuit breaker and a first cylinder (1B) , said first cylinder being closed by a piston (4B) extended by a body of revolution (4A, 4′A) capable of sliding in leaktight fashion around a crown (7a) integral with said frame, the trigger spring (2) surrounding said first cylinder (1B) and bearing on the one hand on said frame and on the other hand on a ring (1C) integral with said first cylinder, the engagement spring (8) being placed inside the cylindrical body (4A) and based on the one hand on said piston and on the other hand on said crown (7A) s integral with the frame, the volumes (V1, V2) inside the first cylinder and said cylindrical body being filled with a liquid (6) and which can be brought into communication on the one hand by an orifice (10) of the piston which can be closed off by a valve (11) and on the other hand by a valve (13) authorizing the passage of the liquid only in the direction of the cylindrical body towards the first cylinder. 2/ Dispositif selon la revendication 1 caractérisé en ce que le corps cylindrique comprend une portion de cylindre (4′A) dans laquelle coulisse ladite couronne (7A) solidaire du bâti dont le diamètre intérieur (D2) est égal au diamètre intérieur dudit premier cylindre (1B).2 / Device according to claim 1 characterized in that the cylindrical body comprises a cylinder portion (4′A) in which slides said crown (7A) integral with the frame whose internal diameter (D2) is equal to the internal diameter of said first cylinder (1B). 3/ Dispositif selon l'une des revendications 1 et 2 caractérisé en ce que la valve (11) est placée à l'intérieur du corps cylindrique et est plaquée contre son siège par un ressort (12) s'appuyant sur une partie fixe du bâti, la course du ressort (12) étant inférieure à la course du piston (4B) de manière à permettre l'ouverture de la valve en fin de phase de fermeture du disjoncteur.3 / Device according to one of claims 1 and 2 characterized in that the valve (11) is placed inside the cylindrical body and is pressed against its seat by a spring (12) resting on a fixed part of the frame, the stroke of the spring (12) being less than the stroke of the piston (4B) so as to allow the valve to open at the end of the circuit-breaker closing phase. 4/ Dispositif selon l'une des revendications 1 à 3 caractérisé en ce que le premier cylindre (1B) et le corps cylindrique (4A, 4′A) portent des moyens d'accrochage (1C, 4C, 4D) coopérant avec des organes de commande (18, 20) et de réarmement (5, 16).4 / Device according to one of claims 1 to 3 characterized in that the first cylinder (1B) and the cylindrical body (4A, 4′A) carry hooking means (1C, 4C, 4D) cooperating with organs control (18, 20) and reset (5, 16).
EP89104014A 1988-03-09 1989-03-07 Control device for a circuit breaker Expired - Lifetime EP0332145B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89104014T ATE92669T1 (en) 1988-03-09 1989-03-07 CONTROL DEVICE OF A LOAD SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8803028 1988-03-09
FR8803028A FR2628566A1 (en) 1988-03-09 1988-03-09 DEVICE FOR CONTROLLING A CIRCUIT BREAKER

Publications (2)

Publication Number Publication Date
EP0332145A1 true EP0332145A1 (en) 1989-09-13
EP0332145B1 EP0332145B1 (en) 1993-08-04

Family

ID=9364087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104014A Expired - Lifetime EP0332145B1 (en) 1988-03-09 1989-03-07 Control device for a circuit breaker

Country Status (8)

Country Link
US (1) US4952759A (en)
EP (1) EP0332145B1 (en)
JP (1) JPH01265418A (en)
AT (1) ATE92669T1 (en)
CA (1) CA1307308C (en)
DE (1) DE68907955T2 (en)
ES (1) ES2041858T3 (en)
FR (1) FR2628566A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2025453A6 (en) * 1990-07-26 1992-03-16 Pujol & Tarago Hydraulic self-adjusting device for control cables of clutches.
CN102354635B (en) * 2011-08-31 2014-01-22 张明军 Large-power hydraulic operating mechanism
DE102013203557A1 (en) * 2013-03-01 2014-09-04 Siemens Aktiengesellschaft Method for generating relative movement between switching contact elements of i.e. vacuum power switch, involves releasing deceleration of auxiliary movement to store braking energy as auxiliary power for supporting motion for elements
JP5418715B1 (en) * 2013-07-30 2014-02-19 株式会社安川電機 Switch
JP6417242B2 (en) * 2015-03-06 2018-10-31 株式会社日立製作所 Switchgear drive device
DE102019205576B4 (en) * 2019-04-17 2023-02-02 Siemens Energy Global GmbH & Co. KG Triggering device for an electrical switching device and an electrical switching device with such a triggering device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361972A1 (en) * 1973-11-19 1975-05-22 Bbc Brown Boveri & Cie Spring loaded drive for switchgear with independent tripping system - has piston operated switch-on and switch-off springs

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387280A (en) * 1978-05-29 1983-06-07 General Electric Company High speed hydraulically-actuated operating system for an electric circuit breaker
US4342884A (en) * 1978-06-14 1982-08-03 Itsuki Ban Piston unit
SE424483B (en) * 1980-11-27 1982-07-19 Asea Ab DEMPDON FOR ELECTRIC SWITCHES
DE3140800A1 (en) * 1981-10-14 1983-04-21 Alfred Teves Gmbh, 6000 Frankfurt ELECTROHYDRAULIC SWITCHING DEVICE
US4424952A (en) * 1982-03-31 1984-01-10 Waltec Inc. Metering unit
GB2191843B (en) * 1986-06-12 1989-12-20 Hollingsworth Uk Ltd Vibration damper

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361972A1 (en) * 1973-11-19 1975-05-22 Bbc Brown Boveri & Cie Spring loaded drive for switchgear with independent tripping system - has piston operated switch-on and switch-off springs

Also Published As

Publication number Publication date
EP0332145B1 (en) 1993-08-04
ATE92669T1 (en) 1993-08-15
CA1307308C (en) 1992-09-08
JPH01265418A (en) 1989-10-23
ES2041858T3 (en) 1993-12-01
DE68907955T2 (en) 1993-11-11
US4952759A (en) 1990-08-28
DE68907955D1 (en) 1993-09-09
FR2628566A1 (en) 1989-09-15

Similar Documents

Publication Publication Date Title
FR2742831A1 (en) GAS SPRING
FR2819835A1 (en) FLUSHING MECHANISM FOR TOILET TANK
WO2003071564A1 (en) Spring-driven mechanism for rectilinear displacement circuit breaker
FR2788258A1 (en) FILL LIMITER FOR LIQUID STORAGE TANK
EP0332145B1 (en) Control device for a circuit breaker
EP2040276B1 (en) Device for controlling the opening and/or closing of the electrical contacts in an electrical apparatus and electrical apparatus containing such a device
FR2461097A1 (en) CONTROL MECHANISM FOR DRIVING A MOBILE WORKPIECE, IN PARTICULAR AN INTERNAL COMBUSTION ENGINE FUEL VALVE
EP2545573B1 (en) Hybrid circuit breaker using switch for restoring to a closure
EP2602804B1 (en) Pole operating device in a medium-voltage electric control apparatus
EP0282858B1 (en) Mechanical energy buffer without any latching force
CA2015663C (en) Ball plug valve
EP0897185B1 (en) Gas-blast circuit breaker with reduced compression
EP0801406B1 (en) Control device with rectilinear springs for high voltage circuitbreaker
EP0128096B1 (en) Actuator with a pneumatic pressure reservoir, especially for valves
EP0667633A1 (en) Autopneumatic circuit breaker with pneumatically locked semi-mobile piston
EP0795883A1 (en) Circuit breaker with reduced self compression
EP1375807B2 (en) Door closer with hydraulic damping
FR2676857A1 (en) DEVICE FOR INSERTING A VARISTOR, INCORPORATED IN A HIGH VOLTAGE CIRCUIT BREAKER.
EP0424588A1 (en) Automatically delayed closing valve
EP0797226B1 (en) High tension circuit breaker having an operating mechanism
BE532943A (en)
FR2679696A1 (en) HIGH AND MEDIUM VOLTAGE CIRCUIT BREAKER WITH SUPPLY GAS.
CH516090A (en) Hydraulic control device, in particular for force-tightening two jaws or plates
FR2763423A1 (en) PNEUMATIC CONTACTOR WITH MECHANICAL LOCK
FR2554201A1 (en) Safety valve for controlling pressures prevailing in two separate chambers.

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

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

Owner name: GEC ALSTHOM SA

17P Request for examination filed

Effective date: 19900305

17Q First examination report despatched

Effective date: 19920302

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

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

Ref country code: SE

Effective date: 19930804

Ref country code: NL

Effective date: 19930804

Ref country code: GR

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

Effective date: 19930804

REF Corresponds to:

Ref document number: 92669

Country of ref document: AT

Date of ref document: 19930815

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930803

REF Corresponds to:

Ref document number: 68907955

Country of ref document: DE

Date of ref document: 19930909

ITF It: translation for a ep patent filed

Owner name: JACOBACCI CASETTA & PERANI S.P.A.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2041858

Country of ref document: ES

Kind code of ref document: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19940307

Ref country code: AT

Effective date: 19940307

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19940308

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

Ref country code: LU

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

Effective date: 19940331

Ref country code: LI

Effective date: 19940331

Ref country code: CH

Effective date: 19940331

Ref country code: BE

Effective date: 19940331

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

26N No opposition filed
BERE Be: lapsed

Owner name: S.A. GEC ALSTHOM

Effective date: 19940331

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940307

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

Ref country code: FR

Effective date: 19941130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19941201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19991102

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050307