EP0238847A1 - Operating device for circuit-breaker - Google Patents

Operating device for circuit-breaker Download PDF

Info

Publication number
EP0238847A1
EP0238847A1 EP87102331A EP87102331A EP0238847A1 EP 0238847 A1 EP0238847 A1 EP 0238847A1 EP 87102331 A EP87102331 A EP 87102331A EP 87102331 A EP87102331 A EP 87102331A EP 0238847 A1 EP0238847 A1 EP 0238847A1
Authority
EP
European Patent Office
Prior art keywords
wheel
spring
pulley
point
chain
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
EP87102331A
Other languages
German (de)
French (fr)
Other versions
EP0238847B1 (en
Inventor
Edmond Thuries
Jean-Paul Masson
Michel Perret
Satoru Yanabu
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
Publication of EP0238847A1 publication Critical patent/EP0238847A1/en
Application granted granted Critical
Publication of EP0238847B1 publication Critical patent/EP0238847B1/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/36—Driving mechanisms, i.e. for transmitting driving force to the contacts using belt, chain, or cord
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18856—Oscillating to oscillating
    • Y10T74/18864—Snap action

Definitions

  • the present invention relates to a device for actuating a circuit breaker, of the type comprising a drive wheel whose rotation causes the displacement of the movable circuit breaker switching members.
  • a chain (or a cable) is fixed at a point close to the periphery of the wheel.
  • the chain passes over a pulley and is fixed to a first end of a spring whose other end is fixed to a fixed point.
  • a rotation of the wheel by a certain angle makes it possible to band the spring and thus to store energy used later for the operation of the circuit breaker.
  • a hooking member keeps the wheel in a fixed position when the spring is tensioned.
  • electromagnet which is used to act on the latching member during the operation of the circuit breaker, to release the wheel. It is planned to interpose between the latching member and the electromagnet one or more stages of effort reduction. In this way it is possible to use a small electromagnet actuated by a weak control current.
  • the hooking and gear reduction members are mechanical parts, the development of which is delicate and expensive.
  • circuit breakers having more powerful mechanical controls, therefore more powerful or more springs.
  • the force exerted by the attachment system on the wheel is then increased; it follows that the release of the wheel requires a greater effort.
  • An object of the present invention is to provide an actuating device which, while offering increased operating energy, allows the use of the hooking members, reduction stages and electromagnets used by devices lower power actuation.
  • the subject of the invention is a device for actuating a circuit breaker of the type comprising a maneuvering wheel whose rotation causes the displacement of the movable cut-off members, said wheel being connected to a first spring by a first chain passing over a first pulley and fixed at a first point close to the periphery of said wheel, the wheel being held fixed when the spring is tensioned by a hooking member whose erasure releases the rotating wheel, characterized in that it comprises a second spring connected by a second chain passing over a second pulley and fixed to a second point of said wheel, the center of said wheel being located, when the two springs are bandaged, between the strand of first chain connecting the first point to the first pulley and the second chain strand connecting the second point to the second pulley, the second spring having a force less than that of the first spring.
  • FIG. 1 schematically represents the drive device of a circuit breaker, according to the prior art.
  • a chain C1 is fixed passing over a pulley P1 and fixed to a spring S1.
  • An attachment member K1, controlled by an electromagnet El keeps the wheel in a fixed position when the spring is tensioned.
  • the effort reduction stages have not been shown.
  • the technical problem facing the applicant is to build a 145 KV circuit breaker or more by using elements of the existing control device of a 72 KV circuit breaker. But it is essential to have greater maneuvering energy. If, to obtain a higher operating energy, a more powerful spring is used, for example of force 2F, the force exerted on the attachment system will be 2KF, requiring a more powerful electromagnet with possibly the addition of '' an additional reduction gear.
  • the spring S1 is replaced by a spring S'1 having a force F'l, for example equal to 2F.
  • the chain strand A1T1 extending from point Al to the pulley P1 and the chain strand A1T2 extending from point Al to the pulley P2 are, when the springs S1 and S2 are bandaged, located on either side of the axis 0 of the wheel.
  • the angles made by A1T1 and A1T2 with the diameter A10 are equal. In this way, the tangential force exerted on the wheel, therefore the latching force, remains equal to KF.
  • the device which has just been described applies both to the mechanism for switching on the circuit breaker and for tripping.
  • FIGS. 2 and 3 show an alternative embodiment.
  • the constituent elements are the same as those in FIGS. 2 and 3 and have been given the same reference numbers.
  • the springs are shown bandaged, the device being at rest.
  • the invention applies both to springs working in tension (as in FIGS. 2 to 5) as in springs working in compression.
  • FIG. 6 represents a variant of the device of FIG. 4 in which the springs S'1 and S2 working in tension have been replaced respectively by springs Z1 and Z2 working in compression and placed in cylinders G1 and G2.

Landscapes

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

Abstract

Dispositif d'actionnement d'un disjoncteur, du type comprenant une roue de manœuvre (R) dont la rotation entraîne le déplacement des organes de coupure mobile, ladite roue étant reliée à un premier ressort (S'1) par une première chaîne (C1) passant sur une première poulie (P1) et fixée à un premier point (A1) voisin de la périphérie de ladite roue, la roue étant maintenue fixe lorsque le ressort (S1) est bandé grâce à un organe d'accrochage (K1) dont l'effacement libère la roue en rotation, caractérisé en ce qu'il comprend un second ressort (S2) relié par une seconde chaîne (C2) passant sur une seconde poulie (P2) et fixée à un second point (A2) de ladite roue, le centre de ladite roue étant situé, lorsque les deux ressorts sont bandés, entre le brin de première chaîne reliant le premier point à la première poulie et le brin de seconde chaîne reliant le second point à la seconde poulie, le second ressort ayant une force inférieure à celle du premier ressort.

Figure imgaf001
Device for actuating a circuit breaker, of the type comprising a drive wheel (R) whose rotation causes the displacement of the movable cut-off members, said wheel being connected to a first spring (S'1) by a first chain (C1 ) passing over a first pulley (P1) and fixed at a first point (A1) close to the periphery of said wheel, the wheel being held stationary when the spring (S1) is tensioned by a hooking member (K1) of which erasing frees the rotating wheel, characterized in that it comprises a second spring (S2) connected by a second chain (C2) passing over a second pulley (P2) and fixed to a second point (A2) of said wheel , the center of said wheel being located, when the two springs are bandaged, between the strand of the first chain connecting the first point to the first pulley and the strand of the second chain connecting the second point to the second pulley, the second spring having a lower force than the first spring.
Figure imgaf001

Description

La présente invention est relative à un dispositif d'actionnement d'un disjoncteur, du type comprenant une roue de manoeuvre dont la rotation entraîne le déplacement des organes mobiles de coupure du disjoncteur. Dans ce type de dispositif d'actionnement une chaîne (ou un câble) est fixée à un point voisin de la périphérie de la roue. La chaîne passe sur une poulie et est fixée à une première extrémité d'un ressort dont l'autre extrémité est fixé à un point fixe.The present invention relates to a device for actuating a circuit breaker, of the type comprising a drive wheel whose rotation causes the displacement of the movable circuit breaker switching members. In this type of actuating device a chain (or a cable) is fixed at a point close to the periphery of the wheel. The chain passes over a pulley and is fixed to a first end of a spring whose other end is fixed to a fixed point.

Un tel dispositif est décrit dans le brevet britannique n° 708 191 ou dans le brevet français n° 1 588 485.Such a device is described in British Patent No. 708,191 or in French Patent No. 1,588,485.

Une rotation de la roue d'un certain angle permet de bander le ressort et d'emmagasiner ainsi une énergie utilisée ultérieurement pour la manoeuvre du disjoncteur.A rotation of the wheel by a certain angle makes it possible to band the spring and thus to store energy used later for the operation of the circuit breaker.

Un organe d'accrochage maintient la roue en position fixe lorsque le ressort est bandé.A hooking member keeps the wheel in a fixed position when the spring is tensioned.

Généralement c'est un électro-aimant qui est utilisé pour agir sur l'organe d'accrochage lors de la manoeuvre du disjoncteur, pour libérer la roue. Il est prévu d'interposer entre l'organe d'accrochage et l'électro-aimant un ou plusieurs étages de démultiplication d'effort. De la sorte on peut utiliser un petit électro-aimant actionné par un faible courant de commande.Generally it is an electromagnet which is used to act on the latching member during the operation of the circuit breaker, to release the wheel. It is planned to interpose between the latching member and the electromagnet one or more stages of effort reduction. In this way it is possible to use a small electromagnet actuated by a weak control current.

Les organes d'accrochage et de démultiplication d'effort sont des pièces mécaniques dont la mise au point est délicate et onéreuse.The hooking and gear reduction members are mechanical parts, the development of which is delicate and expensive.

Or, l'augmentation des valeurs des courants à couper par les disjoncteurs nécessite l'emploi de disjoncteurs ayant des commandes mécaniques plus puissantes, donc des ressorts plus puissants ou plus nombreux.However, the increase in the values of the currents to be cut by the circuit breakers requires the use of circuit breakers having more powerful mechanical controls, therefore more powerful or more springs.

L'effort exercé par le système d'accrochage sur la roue est alors accru ; il en résulte que la libération de la roue nécessite un effort plus important.The force exerted by the attachment system on the wheel is then increased; it follows that the release of the wheel requires a greater effort.

Un but de la présente invention est de réaliser un dispositif d'actionnement qui, tout en offrant une énergie de manoeuvre accrue, permette l'emploi des organes d'accrochage, des étages de démultiplication et des électro-aimants utilisés par des dispositifs d'actionnement de moindre puissance.An object of the present invention is to provide an actuating device which, while offering increased operating energy, allows the use of the hooking members, reduction stages and electromagnets used by devices lower power actuation.

Ce problème n'est pas résolu dans les deux documents cités plus haut.This problem is not resolved in the two documents cited above.

L'invention a pour objet un dispositif d'actionnement d'un disjoncteur du type comprenant une roue de manoeuvre dont la rotation entraîne le déplacement des organes de coupure mobile, ladite roue étant reliée à un premier ressort par une première chaîne passant sur une première poulie et fixée à un premier point voisin de la périphérie de ladite roue, la roue étant maintenue fixe lorsque le ressort est bandé grâce à un organe d'accrochage dont l'effacement libère la roue en rotation, caractérisé en ce qu'il comprend un second ressort relié par une seconde chaîne passant sur une seconde poulie et fixée à un second point de ladite roue, le centre de ladite roue étant situé, lorsque les deux ressorts sont bandés, entre le brin de première chaîne reliant le premier point à la première poulie et le brin de seconde chaîne reliant le second point à la seconde poulie, le second ressort ayant une force inférieure à celle du premier ressort.The subject of the invention is a device for actuating a circuit breaker of the type comprising a maneuvering wheel whose rotation causes the displacement of the movable cut-off members, said wheel being connected to a first spring by a first chain passing over a first pulley and fixed at a first point close to the periphery of said wheel, the wheel being held fixed when the spring is tensioned by a hooking member whose erasure releases the rotating wheel, characterized in that it comprises a second spring connected by a second chain passing over a second pulley and fixed to a second point of said wheel, the center of said wheel being located, when the two springs are bandaged, between the strand of first chain connecting the first point to the first pulley and the second chain strand connecting the second point to the second pulley, the second spring having a force less than that of the first spring.

L'invention est précisée par la description ci-après de divers modes de réalisation de l'invention, en référence au dessin annexé dans lequel :

  • - la figure 1 est un schéma expliquant la constitution et le fonctionnement d'un dispositif d'actionnement selon l'art antérieur,
  • - la figure 2 est un schéma d'un dispositif d'actionnement selon un premier mode de réalisation de l'invention, en position de repos, ressorts bandés,
  • - la figure 3 est un schéma du dispositif d'actionnement de la figure 2, en cours de fonctionnement,
  • - la figure 4, est un schéma du dispositif d'actionnement selon un second mode de réalisation,
  • - la figure 5 est un schéma du dispositif d'actionnement selon un troisième mode de réalisation.
  • - la figure 6 est un schéma du dispositif d'actionnement selon une variante de réalisation.
The invention is clarified by the following description of various embodiments of the invention, with reference to the attached drawing in which:
  • FIG. 1 is a diagram explaining the constitution and the operation of an actuation device according to the prior art,
  • FIG. 2 is a diagram of an actuating device according to a first embodiment of the invention, in the rest position, springs loaded,
  • FIG. 3 is a diagram of the actuation device of FIG. 2, during operation,
  • FIG. 4 is a diagram of the actuation device according to a second embodiment,
  • - Figure 5 is a diagram of the actuating device according to a third embodiment.
  • - Figure 6 is a diagram of the actuating device according to an alternative embodiment.

La figure 1 représente schématiquement le dispositif d'entrai- nement d'un disjoncteur, selon l'art antérieur.FIG. 1 schematically represents the drive device of a circuit breaker, according to the prior art.

Il comprend une roue R tournant autour d'un axe 0.It includes a wheel R rotating around an axis 0.

A un point A1 voisin de la périphérie de la roue, est fixée une chaîne Cl passant sur une poulie P1 et fixée à un ressort S1. Un organe d'accrochage K1, commandé par un électro-aimant El maintient la roue en position fixe lorsque le ressort est bandé. Les étages de démultiplication d'effort n'ont pas été représentés.At a point A1 near the periphery of the wheel, a chain C1 is fixed passing over a pulley P1 and fixed to a spring S1. An attachment member K1, controlled by an electromagnet El keeps the wheel in a fixed position when the spring is tensioned. The effort reduction stages have not been shown.

Si la force du ressort est égal à F, l'effort exercé sur le système d'accrochage lui est proportionnel, soit KF.If the spring force is equal to F, the force exerted on the attachment system is proportional to it, ie KF.

Le problème technique qui se pose à la demanderesse est de contruire un disjoncteur 145 KV ou plus en utilisant des éléments du dispositif de commande existant d'un disjoncteur 72 KV. Mais il est indispensable de disposer d'une énergie de manoeuvre plus grande. Si, pour obtenir une énergie de manoeuvre plus importante, on utilise un ressort plus puissant, par exemple de force 2F, l'effort exercé sur le système d'accrochage sera 2KF, nécessitant un électro-aimant plus puissance avec éventuellement l'adjonction d'un étage supplémentaire de démultiplication.The technical problem facing the applicant is to build a 145 KV circuit breaker or more by using elements of the existing control device of a 72 KV circuit breaker. But it is essential to have greater maneuvering energy. If, to obtain a higher operating energy, a more powerful spring is used, for example of force 2F, the force exerted on the attachment system will be 2KF, requiring a more powerful electromagnet with possibly the addition of '' an additional reduction gear.

On évite cet inconvénient dans le dispositif d'actionnement de l'invention, dont un premier mode de réalisation est représenté dans les figures 2 et 3.This drawback is avoided in the actuating device of the invention, a first embodiment of which is shown in FIGS. 2 and 3.

On remplace, dans le dispositif de l'art antérieur comprenant la roue R, le ressort S1, la chaîne Cl et la poulie P1, le ressort S1 par un ressort S'1 ayant une force F'l par exemple égale à 2F.In the device of the prior art comprising the wheel R, the spring S1, the chain Cl and the pulley P1, the spring S1 is replaced by a spring S'1 having a force F'l, for example equal to 2F.

On adjoint à ce dispositif un second ressort S2 de force égale à F, relié au point A1 par une chaîne C2 passant sur une poulie P2.To this device is added a second spring S2 of force equal to F, connected to point A1 by a chain C2 passing over a pulley P2.

Conformément à l'invention, le brin de chaîne A1T1 s'étendant du point Al à la poulie P1 et le brin de chaîne A1T2 s'étendant du point Al à la poulie P2 sont, lorsque les ressorts S1 et S2 sont bandés, situés de part et d'autre de l'axe 0 de la roue. De préférence, comme c'est le cas dans la figure 2, les angles que font A1T1 et A1T2 avec le diamètre A10 sont égaux. De la sorte, l'effort tangentiel exercé sur la roue, donc l'effort d'accrochage, reste égal à KF.According to the invention, the chain strand A1T1 extending from point Al to the pulley P1 and the chain strand A1T2 extending from point Al to the pulley P2 are, when the springs S1 and S2 are bandaged, located on either side of the axis 0 of the wheel. Preferably, as is the case in FIG. 2, the angles made by A1T1 and A1T2 with the diameter A10 are equal. In this way, the tangential force exerted on the wheel, therefore the latching force, remains equal to KF.

Dès la libération de l'accrochage, le ressort S'1 entraîne la roue contre l'action du ressort S2 donc avec une force F comme dans le cas de la figure 1. Dès que le brin de chaîne A1T2 passe de l'autre côté du point 0 par rapport au brin A1T1, le ressort S2 participe à l'entraînement de la roue et la force d'entraînement de la roue devient 2F+F =3F (figure 3).As soon as the coupling is released, the spring S'1 drives the wheel against the action of the spring S2, therefore with a force F as in the case of FIG. 1. As soon as the chain strand A1T2 passes on the other side from point 0 relative to the strand A1T1, the spring S2 participates in the drive wheel and the driving force of the wheel becomes 2F + F = 3F (Figure 3).

Le dispositif qui vient d'être décrit s'applique aussi bien au mécanisme de l'enclenchement du disjoncteur qu'au déclenchement.The device which has just been described applies both to the mechanism for switching on the circuit breaker and for tripping.

La figure 4 représente une variante de réalisation. Les éléments constitutifs sont les mêmes que ceux des figures 2 et 3 et ont reçu les mêmes numéros de référence.Figure 4 shows an alternative embodiment. The constituent elements are the same as those in FIGS. 2 and 3 and have been given the same reference numbers.

Les ressorts sont représentés bandés, le dispositif étant au repos.The springs are shown bandaged, the device being at rest.

La différence avec la figure 2 est que le brin A1T2 passe par l'axe 0 de la roue. L'effort 2F du ressort S2 est contrebalancé par la réaction des paliers de l'axe 0 de la roue. L'effort exercé sur l'organe d'accrochage est donc égal à celui du dispositif des figures 1 à 3. Par contre, à la différence du dispositif de la figure 2, dès la libération de l'organe d'accrochage Kl, le ressort S2 devient moteur et son effet s'additionne à celui du ressort S'1.The difference with FIG. 2 is that the strand A1T2 passes through the axis 0 of the wheel. The force 2F of the spring S2 is counterbalanced by the reaction of the bearings of the axis 0 of the wheel. The force exerted on the latching member is therefore equal to that of the device in FIGS. 1 to 3. On the other hand, unlike the device in FIG. 2, as soon as the latching member Kl is released, the spring S2 becomes motor and its effect is added to that of spring S'1.

L'invention n'est pas limitée aux modes de réalisation décrits et représentés.The invention is not limited to the embodiments described and shown.

On peut, comme représenté dans la figure 5, qui représente une généralisation du principe de l'invention, accrocher le brin C2 en un point A2 de périphérie de la roue R voisin du point Al et non confondu avec lui. Les forces des ressorts peuvent être choisies dans une large gamme, les seules conditions à réaliser étant que la force du ressort S'1 1 soit supérieure à celle du ressort S2 et que les brins A1T1 et A2T2 soient de part et d'autre de l'axe 0 de la roue afin de réaliser le double objectif :

  • - obtenir une force de manoeuvre du disjoncteur suffisante,
  • - obtenir que l'effort sur l'organe d'accrochage reste inférieur à une valeur donnée.
It is possible, as shown in FIG. 5, which represents a generalization of the principle of the invention, to hang the strand C2 at a point A2 on the periphery of the wheel R close to the point Al and not confused with it. The spring forces can be chosen from a wide range, the only conditions to be fulfilled being that the force of the spring S'1 1 is greater than that of the spring S2 and that the strands A1T1 and A2T2 are on either side of the axis 0 of the wheel in order to achieve the double objective:
  • - obtain sufficient operating force for the circuit breaker,
  • - obtain that the force on the attachment member remains below a given value.

Bien entendu, l'invention s'applique aussi bien aux ressorts travaillant à la traction (comme dans les figures 2 à 5) qu'aux ressorts travaillant à la compression.Of course, the invention applies both to springs working in tension (as in FIGS. 2 to 5) as in springs working in compression.

La figure 6 représente une variante du dispositif de la figure 4 dans lequel on a remplacé les ressorts S'1 et S2 travaillant à la traction respectivement par des ressorts Z1 et Z2 travaillant à la compression et placés dans des cylindres G1 et G2.FIG. 6 represents a variant of the device of FIG. 4 in which the springs S'1 and S2 working in tension have been replaced respectively by springs Z1 and Z2 working in compression and placed in cylinders G1 and G2.

Claims (4)

1/ Dispositif d'actionnement d'un disjoncteur du type comprenant une roue de manoeuvre (R) dont la rotation entraîne le déplacement des organes de coupure mobile, ladite roue étant reliée à un premier ressort (S'1) par une première chaîne (C1) passant sur une première poulie (P1) et fixée à un premier point (A1) voisin de la périphérie de ladite roue, la roue étant maintenue fixe lorsque le ressort (S1) est bandé grâce à un organe d'accrochage (K1) dont l'effacement libère la roue en rotation, caractérisé en ce qu'il comprend un second ressort (S2) relié par une seconde chaîne (C2) passant sur une seconde poulie (P2) et fixée à un second point (A2) de ladite roue, le centre de ladite roue étant situé, lorsque les deux ressorts sont bandés, entre le brin de première chaîne reliant le premier point à la première poulie et le brin de seconde chaîne reliant le second point à la seconde poulie, le second ressort ayant une force inférieure à celle du premier ressort.1 / Device for actuating a circuit breaker of the type comprising a drive wheel (R) whose rotation causes the displacement of the movable cut-off members, said wheel being connected to a first spring (S'1) by a first chain ( C1) passing over a first pulley (P1) and fixed at a first point (A1) close to the periphery of said wheel, the wheel being held stationary when the spring (S1) is tensioned by a hooking member (K1) whose erasure frees the rotating wheel, characterized in that it comprises a second spring (S2) connected by a second chain (C2) passing over a second pulley (P2) and fixed to a second point (A2) of said wheel, the center of said wheel being located, when the two springs are bandaged, between the strand of first chain connecting the first point to the first pulley and the strand of second chain connecting the second point to the second pulley, the second spring having a force lower than that of the first spring. 2/ Dispositif selon la revendication 1, caractérisé en ce que les points (A1, A2) d'accrochage des chaînes sur la roue sont confondus. 3/ Dispositif selon la revendication 2, caractérisé en ce que la force du premier ressort est sensiblement égale au double de celle du second ressort.2 / Device according to claim 1, characterized in that the points (A1, A2) of attachment of the chains on the wheel are combined. 3 / Device according to claim 2, characterized in that the force of the first spring is substantially equal to twice that of the second spring. 4/ Dispositif selon la revendication 2, caractérisé en ce que la différence entre la force du premier ressort et celle du second ressort est une force ayant une valeur suffisante pour la manoeuvre du disjoncteur.4 / Device according to claim 2, characterized in that the difference between the force of the first spring and that of the second spring is a force having a sufficient value for the operation of the circuit breaker. 5/ Dispositif selon l'une des revendications 2 à 4, caractérisé en ce que le brin de la seconde chaîne reliant le second ressort à la roue passe par l'axe de la roue.5 / Device according to one of claims 2 to 4, characterized in that the strand of the second chain connecting the second spring to the wheel passes through the axis of the wheel.
EP87102331A 1986-02-21 1987-02-19 Operating device for circuit-breaker Expired - Lifetime EP0238847B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8602409 1986-02-21
FR8602409A FR2595004B1 (en) 1986-02-21 1986-02-21 MECHANICAL DEVICE FOR ACTUATING A CIRCUIT BREAKER

Publications (2)

Publication Number Publication Date
EP0238847A1 true EP0238847A1 (en) 1987-09-30
EP0238847B1 EP0238847B1 (en) 1993-06-16

Family

ID=9332394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102331A Expired - Lifetime EP0238847B1 (en) 1986-02-21 1987-02-19 Operating device for circuit-breaker

Country Status (11)

Country Link
US (1) US4743721A (en)
EP (1) EP0238847B1 (en)
JP (1) JPS62222525A (en)
CN (1) CN1008850B (en)
BR (1) BR8700827A (en)
DE (1) DE3786186T2 (en)
DK (1) DK86687A (en)
ES (1) ES2041247T3 (en)
FR (1) FR2595004B1 (en)
IE (1) IE62081B1 (en)
PT (1) PT84336B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1178505A1 (en) * 2000-08-04 2002-02-06 Schneider Electric High Voltage SA Actuating mechanism with tow chain for electrical high voltage switches

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135263C2 (en) * 1991-10-25 1994-12-08 Daimler Benz Ag Operating device for a remote actuating device
FR2778492B1 (en) * 1998-05-11 2000-06-23 Alsthom Gec SPRING CONTROL FOR CIRCUIT SWITCH
DE10203478A1 (en) * 2002-01-23 2003-07-31 Siemens Ag Circuit breaker with a drive device for actuating a contact unit
US8362379B1 (en) 2010-06-25 2013-01-29 U.S. Department Of Energy Remote switch actuator
DE102015200135A1 (en) * 2015-01-08 2016-07-14 Siemens Aktiengesellschaft Coupling member for an electrical switching device, in particular a vacuum interrupter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB708191A (en) * 1951-04-23 1954-04-28 Reyrolle A & Co Ltd Improvements relating to spring-closed electric circuit-breakers
FR1561459A (en) * 1968-02-14 1969-03-28
FR1588485A (en) * 1968-05-03 1970-04-17
DE2200332A1 (en) * 1972-01-05 1973-07-12 Sachsenwerk Licht & Kraft Ag SPRING DRIVE FOR HIGH VOLTAGE CIRCUIT BREAKERS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544811A (en) * 1948-02-27 1951-03-13 F A Straub Equipment Co Clutch lever booster
DE1210476B (en) * 1959-12-31
US3144296A (en) * 1961-04-19 1964-08-11 Hartmann & Braun Ag Recorder
JPS6313632Y2 (en) * 1979-07-31 1988-04-18
JPS60186779A (en) * 1984-03-05 1985-09-24 古河電気工業株式会社 Rocking device for crank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB708191A (en) * 1951-04-23 1954-04-28 Reyrolle A & Co Ltd Improvements relating to spring-closed electric circuit-breakers
FR1561459A (en) * 1968-02-14 1969-03-28
FR1588485A (en) * 1968-05-03 1970-04-17
DE2200332A1 (en) * 1972-01-05 1973-07-12 Sachsenwerk Licht & Kraft Ag SPRING DRIVE FOR HIGH VOLTAGE CIRCUIT BREAKERS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1178505A1 (en) * 2000-08-04 2002-02-06 Schneider Electric High Voltage SA Actuating mechanism with tow chain for electrical high voltage switches
FR2812760A1 (en) * 2000-08-04 2002-02-08 Schneider Electric High Voltag DRIVE CHAIN MECHANISM FOR HIGH VOLTAGE CUT-OUT ELECTRICAL EQUIPMENT

Also Published As

Publication number Publication date
CN1008850B (en) 1990-07-18
DE3786186T2 (en) 1993-09-23
PT84336A (en) 1987-03-01
DK86687A (en) 1987-08-22
DK86687D0 (en) 1987-02-20
US4743721A (en) 1988-05-10
ES2041247T3 (en) 1993-11-16
IE870444L (en) 1987-08-21
FR2595004A1 (en) 1987-08-28
IE62081B1 (en) 1994-12-14
PT84336B (en) 1989-09-14
FR2595004B1 (en) 1994-04-08
CN87100771A (en) 1987-11-11
JPS62222525A (en) 1987-09-30
BR8700827A (en) 1987-12-22
DE3786186D1 (en) 1993-07-22
EP0238847B1 (en) 1993-06-16
JPH0433089B2 (en) 1992-06-02

Similar Documents

Publication Publication Date Title
EP0977233B1 (en) Circuit breaker with high electrodynamic strength and breaking capacity
FR2488667A1 (en) SPEED CHANGE DEVICE FOR BICYCLE
FR2686743A1 (en) DEVICE FOR WINDING AND RUNNING AN ENERGY TRANSPORT CABLE, OR THE LIKE.
EP0238847A1 (en) Operating device for circuit-breaker
EP1347479A1 (en) Ultrafast current limiting electrical switching apparatus
EP0282858B1 (en) Mechanical energy buffer without any latching force
WO2002057176A1 (en) Emergency braking and shock absorbing device for a lift or suspended load
EP2439163A1 (en) Tensioning device for a speed limiter for controlling an elevator safety gear
CA2065509C (en) Disconnecting switch with improved breaking capacity in particular a vertical opening disconnect switch
EP0130208B1 (en) Switch with controlled closing and opening and automatic opening in case of current overloads
EP0018553B1 (en) Modular circuit breaker
FR2528622A1 (en) TRIGGERING DEVICE FOR THERMAL RELAY
EP0057639B1 (en) Drum brake
FR2628666A1 (en) Rotary cutter and grip for cable sectioning - has jaws encircling cable, with support provided as cutter-jack action closes jaws
FR1460087A (en) Winemaker type winch
EP1178505A1 (en) Actuating mechanism with tow chain for electrical high voltage switches
FR2669284A1 (en) Device for pretensioning a safety belt sash (strap)
EP0693765A1 (en) Electromagnetic actuator for a low tension circuit breaker
FR2776559A1 (en) CHAIN CHAINSAW
EP0039282A1 (en) Method and apparatus for controlling a mechanical system performing cyclic operations
FR2710591A1 (en) Tip-up body, and especially lorry with tip-up body
FR2739586A1 (en) Safety cut-out system for interrupting and braking action of circular saw
FR2525026A1 (en) Short-circuit or overcurrent sensor - has delayed gradual operation when current higher than rated valve is detected, and spring-loaded plunger in viscous fluid within cylinder
FR3129328A1 (en) ELECTRIC VEHICLE CONTROL SYSTEM
EP1640630B1 (en) Return spring device with spring tension stabilization and actuation in a drumbrake

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): BE CH DE ES FR GB GR IT LI LU NL

17P Request for examination filed

Effective date: 19880324

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

Owner name: GEC ALSTHOM SA

17Q First examination report despatched

Effective date: 19901026

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

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

Ref country code: NL

Effective date: 19930616

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: 19930616

REF Corresponds to:

Ref document number: 3786186

Country of ref document: DE

Date of ref document: 19930722

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

Effective date: 19930625

ITF It: translation for a ep patent filed

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

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2041247

Country of ref document: ES

Kind code of ref document: T3

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: 19940228

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020115

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20020117

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020207

Year of fee payment: 16

Ref country code: DE

Payment date: 20020207

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20020214

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20020227

Year of fee payment: 16

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

Ref country code: GB

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

Effective date: 20030219

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 NON-PAYMENT OF DUE FEES

Effective date: 20030220

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

Ref country code: LI

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

Effective date: 20030228

Ref country code: CH

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

Effective date: 20030228

Ref country code: BE

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

Effective date: 20030228

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

Ref country code: DE

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

Effective date: 20030902

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

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

Effective date: 20031031

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: 20030220

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: 20050219