EP0238847A1 - Operating device for circuit-breaker - Google Patents
Operating device for circuit-breaker Download PDFInfo
- 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
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. 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.
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.
- 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
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
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
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
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
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.
- - 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)
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)
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)
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)
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)
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 |
-
1986
- 1986-02-21 FR FR8602409A patent/FR2595004B1/en not_active Expired - Fee Related
-
1987
- 1987-02-19 EP EP87102331A patent/EP0238847B1/en not_active Expired - Lifetime
- 1987-02-19 JP JP62036839A patent/JPS62222525A/en active Granted
- 1987-02-19 DE DE8787102331T patent/DE3786186T2/en not_active Expired - Fee Related
- 1987-02-19 ES ES198787102331T patent/ES2041247T3/en not_active Expired - Lifetime
- 1987-02-20 IE IE44487A patent/IE62081B1/en not_active IP Right Cessation
- 1987-02-20 PT PT84336A patent/PT84336B/en not_active IP Right Cessation
- 1987-02-20 DK DK086687A patent/DK86687A/en not_active Application Discontinuation
- 1987-02-20 BR BR8700827A patent/BR8700827A/en not_active IP Right Cessation
- 1987-02-21 CN CN87100771A patent/CN1008850B/en not_active Expired
- 1987-02-24 US US07/017,420 patent/US4743721A/en not_active Expired - Lifetime
Patent Citations (4)
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)
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 |