EP0696039A1 - Circuit breaker mechanism provided with an energy accumulator with a damping stop - Google Patents

Circuit breaker mechanism provided with an energy accumulator with a damping stop Download PDF

Info

Publication number
EP0696039A1
EP0696039A1 EP95410068A EP95410068A EP0696039A1 EP 0696039 A1 EP0696039 A1 EP 0696039A1 EP 95410068 A EP95410068 A EP 95410068A EP 95410068 A EP95410068 A EP 95410068A EP 0696039 A1 EP0696039 A1 EP 0696039A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
yoke
control mechanism
spring
damping stop
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
EP95410068A
Other languages
German (de)
French (fr)
Other versions
EP0696039B1 (en
Inventor
Pierre Latapie
Pierre Baginski
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.)
Schneider Electric SE
Original Assignee
Schneider Electric SE
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 Schneider Electric SE filed Critical Schneider Electric SE
Publication of EP0696039A1 publication Critical patent/EP0696039A1/en
Application granted granted Critical
Publication of EP0696039B1 publication Critical patent/EP0696039B1/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
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • 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
    • H01H2003/3068—Housing support frame for energy accumulator and cooperating mechanism
    • 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
    • H01H3/22—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
    • H01H3/3015—Charging means using cam devices

Definitions

  • the object of the invention is to improve the mechanical endurance of an energy accumulator circuit breaker control mechanism.
  • the mechanism according to the invention is characterized in that the telescopic link cooperates during disarming with a damping stop intended to absorb the excess energy of the main closing spring after passing the closing dead center of the toggle joint device, and before the end of travel of the driving lever.
  • the damping stop is integrated in the telescopic connection of the accumulator system.
  • the damping effect of the integrated stop results from the elasticity of the steel parts.
  • the damping can be adapted by providing any other absorption interface at the level of the impact zone of the parts in contact.
  • the telescopic connection comprises a yoke in connection with the driving lever, and cooperating slidingly with a guide, and a slide arranged in an intermediate drawer between the guide and the yoke, said slide being equipped with 'a retaining rim intended to interfere with a conjugate shoulder of the yoke to form said damping stop.
  • the main compression spring is inserted between a bearing surface of the yoke, and a base of the slide, said base being located opposite the flange.
  • An auxiliary biasing spring is interposed coaxially inside the slide between the guide, and a longitudinal extension of the yoke.
  • a multipolar electrical circuit breaker having at least one pair of contacts 10, 12, separable by pole, is actuated by a mechanism 14 for carrying control by a chassis with parallel flanges 15 and comprising a toggle joint device 16 associated with a trigger hook 18.
  • the toggle joint device 16 comprises a pair of connecting rods 20, 22 articulated on a pivot axis 24, the lower connecting rod 20 of transmission being mechanically coupled to a transverse switching bar 23, common to all of the poles.
  • the bar 23 is constituted by a shaft 26 rotatably mounted between an open position and a closed position of the contacts 10, 12.
  • a connecting rod 30 which connects a crank of the bar 23 to a insulating cage 28 for supporting the movable contact 12.
  • the latter is connected to a connection pad 32 by a flexible conductor 34, in particular a braid.
  • a contact pressure spring 36 is arranged between the cage 28 and the upper face of each movable contact 12.
  • the trigger hook 18 is pivotally mounted on a main axis 38 fixed between an armed position ( Figure 1) and a triggered position.
  • An opening spring 40 is anchored between a lug 42 of the bar 23 and a fixed retaining cleat 44 disposed above the toggle joint device 16.
  • An opening pawl 46 formed by a locking lever pivotally mounted on a axis 48, is controlled by a first latch 50 in the shape of a half-moon.
  • a spring 52 for returning the opening pawl 46 is located opposite the first latch 50 relative to the axis 48.
  • a stop 54 formed on the opening pawl 46 between the axis 48 and the latch 50, cooperates in the armed position with a V-shaped recess 56 in the trigger hook 18.
  • the upper link 22 of the toggle joint 16 is articulated on an axis 58 of the trigger hook 18 opposite the recess 56.
  • the mechanism 14 includes a reset cam 62 keyed to the main axis 38 of the hook 18, and cooperating with an energy storage system 64.
  • the energy storage system 64 is equipped with a closing pawl 66 controlled by a second latch 68, and a driving lever 70 pivotally mounted on an axis 69.
  • An elastic energy storage device 71 is arranged between a housing 74 of the chassis and a finger 76 for transmitting the driving lever 70.
  • the reset cam 62 cooperates with a roller 78 of the driving lever 70, and the elastic device 71 d accumulation of energy urges the latter to bear on the cam 62.
  • the profile of the cam 62 comprises a first sector 80 for arming the closing spring 72, and a second sector 82 corresponding to the release of the roller 78 authorizing an abrupt pivoting of the driving lever 70 anticlockwise under the detent action of the elastic device 71.
  • the resetting cam 62 is also provided with a lug 84 capable of coming in stop of the closing pawl 66 when the end of the first sector 80 of the cam 62 is in contact with the roller 78 of the driving lever 70.
  • the contacts 10, 12 are either in the open position or in the closed position, depending on the state of the toggle joint device 16.
  • the roller 78 resting on the first sector 80 exerts a torque on the reset cam 62 urging the latter to rotate clockwise.
  • the closing pawl 66 opposes this rotation by virtue of the retention of the lug 84 of the cam 62.
  • the mechanism 14 cooperates with a magnetothermal or electronic trip device (not shown) to cause the automatic opening of the contacts 10, 12, in the event of an overload or a fault.
  • a closing maneuver can be controlled by actuation of the second latch 68 causing the closing pawl 66 to pivot about its axis 88 in the anticlockwise direction .
  • the elastic device 71 of the energy storage system 64 for closing the contacts 10, 12 of the circuit breaker comprises a telescopic connection 90 in which is integrated a damping stop 91.
  • the telescopic connection 90 is equipped with 'a guide 92 positioned in the housing 74 of the chassis, and a yoke 94 capable of sliding along the guide 92, and comprising a notch for housing the finger 76 of the driving lever 70.
  • a slide 100 in the form of an intermediate drawer is interposed between the guide 92 and the yoke 94, and has an annular rim 102 cooperating with a shoulder 104 conjugate located on a longitudinal extension 105 of the yoke 94 to form the damping stop 91.
  • a main compression spring 106 is inserted between the yoke 94, and an outer base 108 of the slider 100, which base is located opposite the flange 102.
  • An auxiliary biasing spring 110 is arranged coaxially inside the slider 100 bearing on the guide 92 and the shoulder 104 of the longitudinal extension 105 of the yoke 94. The stiffness of the auxiliary spring 110 is less than that of the main spring 106.
  • the reset cam 62 is locked in the armed position by the closing pawl 66, and the two springs 106, 110 are compressed to the maximum by the relative approximation of the yoke 94 relative to the guide 92.
  • the rim 102 of the slide 100 is separated longitudinally from the shoulder 104 of the yoke 94 by a predetermined distance 112.
  • the relaxation of the main spring 106 causes the pivoting of the driving lever 70 around the axis 69 in an anticlockwise direction.
  • the driving lever 70 acts on the upper link 22 so as to drive the toggle joint device 16 to an intermediate position corresponding to the passing of the closing dead center.
  • the accumulator system 64 is then in the position of FIG. 2, in which the shoulder 104 of the yoke 94 comes into engagement against the edge 102 of the slider 100, so as to constitute the damping stop 91 intended to absorb the 'excess energy from the spring 106, before the driving lever 70 comes into contact with the fixed stud 114.
  • this damping stop 91 results from the elasticity of the steel parts, which could be reinforced by means of an elastic ring (not shown), arranged either on the shoulder 104 or on the flange 102.
  • the elastic ring could of course be replaced by any other absorption interface.
  • curve A the control energy necessary for the closing of the contacts 10, 12 of the circuit breaker is presented by the curve A, which extends between the position O of opening of the contacts, and the intermediate point PMF of passage of the neutral closing.
  • Curve B illustrates, the closing energy of a conventional mechanism, for the total stroke 11 of the driving lever 70, in particular that described in document EP-A-222 645.
  • Curve C reflects the closing energy of the mechanism according to the invention, thanks to the presence of the damping stop 91 inside the telescopic link 90, making it possible to absorb the excess energy after the PMF product passing from the neutral point of closure. Stroke 12 is less than stroke 11, which improves the endurance of mechanism 14.
  • damping stop 91 also authorizes the increase in the number of vacuum feeders of the circuit breaker. Certain standards indeed require the disarming of the energy storage mechanism when the circuit breaker is withdrawn, regardless of the open or closed position of the contacts.
  • a disarming lever (not shown) is made active during the drawout travel of the circuit breaker to act on the latch 68 so as to unlock the closing pawl 66 automatically causing the springs 106, 110 to relax.
  • the energy storage system 64 with stop 91 can be integrated, either directly into the mechanism 14 of a one-piece circuit breaker, or into a remote control unit mechanically coupled to the circuit breaker unit.
  • the reset cam 62 can be replaced by any other means for controlling the closing spring.

Landscapes

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

Abstract

The control mechanism 916) includes a pair of connection rods (20,22) articulated to a rotation axis (24). The lower rod is coupled to a transversal cylinder (23) common to a pair of contacts (10,12). The cylinder can rotate between two positions: contact closed and opened. The mobile contact (12) is separated from its insulating support (28) by a spring (36). A shock absorber (64) includes a re-loading cam (62) and a telescopic link (90) with an integrated shock damper. A guide (92) receives the sliding head of the telescopic link. A main spring (106) is inserted between the sliding head and a base (108).

Description

L'invention est relative à un mécanisme de commande pour un disjoncteur électrique multipolaire, ayant une paire de contacts séparables par pôle, et comprenant :

  • un crochet de déclenchement associé à un dispositif à genouillère, comprenant une première biellette articulée entre un barreau de commutation, et une deuxième biellette,
  • un système accumulateur d'énergie ayant une liaison télescopique coopérant avec un dispositif élastique ayant au moins un ressort principal de fermeture,
  • un levier entraîneur agencé entre le système accumulateur d'énergie et la deuxième biellette du dispositif à genouillère,
  • et des moyens de commande pour assurer le passage de la liaison télescopique de la position armée vers la position désarmée, et vice-versa.
The invention relates to a control mechanism for a multi-pole electric circuit breaker, having a pair of contacts separable by pole, and comprising:
  • a trigger hook associated with a toggle joint device, comprising a first link articulated between a switching bar, and a second link,
  • an energy storage system having a telescopic link cooperating with an elastic device having at least one main closing spring,
  • a driving lever arranged between the energy storage system and the second link of the toggle joint device,
  • and control means for ensuring the passage of the telescopic link from the armed position to the disarmed position, and vice versa.

Un tel mécanisme est décrit dans le document EP-A 222 645. L'excédent d'énergie de commande après le point mort fermeture de la genouillère du mécanisme, est encaissé directement par la butée fixe de limitation de la course de pivotement du levier entraîneur. Il peut en résulter une usure prématurée du mécanisme, notamment dans certaines conditions de départs à vide suite à des débrochages répétés du disjoncteur.Such a mechanism is described in document EP-A 222 645. The excess control energy after the neutral closing of the toggle of the mechanism is collected directly by the fixed stop for limiting the pivoting stroke of the driving lever. . This can result in premature wear of the mechanism, in particular under certain conditions of no-load departures following repeated withdrawals from the circuit breaker.

L'objet de l'invention consiste à améliorer l'endurance mécanique d'un mécanisme de commande de disjoncteur à accumulation d'énergie.The object of the invention is to improve the mechanical endurance of an energy accumulator circuit breaker control mechanism.

Le mécanisme selon l'invention est caractérisé en ce que la liaison télescopique coopère lors du désarmement avec une butée d'amortissement destinée à absorber l'excédent d'énergie du ressort principal de fermeture après dépassement du point mort de fermeture du dispositif à genouillère, et avant la fin de course du levier entraîneur.The mechanism according to the invention is characterized in that the telescopic link cooperates during disarming with a damping stop intended to absorb the excess energy of the main closing spring after passing the closing dead center of the toggle joint device, and before the end of travel of the driving lever.

Selon une caractéristique de l'invention, la butée d'amortissement est intégrée dans la liaison télescopique du système accumulateur.According to a characteristic of the invention, the damping stop is integrated in the telescopic connection of the accumulator system.

Les chocs mécaniques occasionnés suite à l'excédent d'énergie au cours d'une phase de désarmement sont ainsi reportés au niveau de la butée d'amortissement.Mechanical shocks caused by excess energy during a disarming phase are thus transferred to the level of the damping stop.

L'effet d'amortissement de la butée intégrée résulte de l'élasticité des pièces en acier. L'amortissement peut être adapté en prévoyant tout autre interface d'absorption au niveau de la zone d'impact des pièces en contact.The damping effect of the integrated stop results from the elasticity of the steel parts. The damping can be adapted by providing any other absorption interface at the level of the impact zone of the parts in contact.

Selon un mode de réalisation de l'invention, la liaison télescopique comporte une chape en liaison avec le levier entraîneur, et coopérant à coulissement avec un guide, et un coulisseau agencé en tiroir intermédiaire entre le guide et la chape, ledit coulisseau étant équipé d'un rebord de retenue destiné à interférer avec un épaulement conjugué de la chape pour former ladite butée d'amortissement.According to one embodiment of the invention, the telescopic connection comprises a yoke in connection with the driving lever, and cooperating slidingly with a guide, and a slide arranged in an intermediate drawer between the guide and the yoke, said slide being equipped with 'a retaining rim intended to interfere with a conjugate shoulder of the yoke to form said damping stop.

Le ressort principal de compression est inséré entre une surface d'appui de la chape , et une embase du coulisseau , ladite embase étant située à l'opposé du rebord. Un ressort auxiliaire de polarisation se trouve intercalé coaxialement à l'intérieur du coulisseau entre le guide, et une extension longitudinale de la chape.The main compression spring is inserted between a bearing surface of the yoke, and a base of the slide, said base being located opposite the flange. An auxiliary biasing spring is interposed coaxially inside the slide between the guide, and a longitudinal extension of the yoke.

D'autres caractéristiques et avantages ressortiront plus clairement de la description qui va suivre d'un mode de réalisation de l'invention donné à titre d'exemple non limitatif, et représenté aux dessins annexés, dans lesquels :

  • la figure 1 montre une vue schématique du mécanisme équipé du système accumulateur d'énergie selon l'invention, le mécanisme étant représenté dans l'état ouvert-fermé correspondant à la position d'ouverture des contacts, et à la position armée du système accumulateur ;
  • la figure 2 est une vue partielle à échelle agrandie de la figure 1, montrant le système accumulateur dans la position désarmée après passage de point mort de la genouillère ;
  • la figure 3 est une vue identique à la figure 1, dans l'état fermé-désarmé du mécanisme, correspondant à la position de fermeture des contacts, et à la position désarmée du système accumulateur ;
  • la figure 4 montre différents diagrammes représentant la variation d'énergie de commande d'un mécanisme connu (courbe B) et d'un mécanisme selon l'invention (courbe C) en fonction de la course de l'équipage mobile.
Other characteristics and advantages will emerge more clearly from the description which follows of an embodiment of the invention given by way of nonlimiting example, and represented in the appended drawings, in which:
  • Figure 1 shows a schematic view of the mechanism equipped with the energy storage system according to the invention, the mechanism being shown in the open-closed state corresponding to the position of opening of the contacts, and to the armed position of the storage system ;
  • FIG. 2 is a partial view on an enlarged scale of FIG. 1, showing the accumulator system in the disarmed position after passing the neutral position of the toggle;
  • Figure 3 is a view identical to Figure 1, in the closed-disarmed state of the mechanism, corresponding to the closed position of the contacts, and the disarmed position of the accumulator system;
  • FIG. 4 shows different diagrams representing the variation in control energy of a known mechanism (curve B) and of a mechanism according to the invention (curve C) as a function of the travel of the moving assembly.

Sur les figures 1 à 3, un disjoncteur électrique multipolaire ayant au moins une paire de contacts 10, 12, séparables par pôle, est actionné par un mécanisme 14 de commande porté par un châssis à flasques 15 parallèles et comprenant un dispositif à genouillère 16 associé à un crochet de déclenchement 18.In FIGS. 1 to 3, a multipolar electrical circuit breaker having at least one pair of contacts 10, 12, separable by pole, is actuated by a mechanism 14 for carrying control by a chassis with parallel flanges 15 and comprising a toggle joint device 16 associated with a trigger hook 18.

Le dispositif à genouillère 16 comporte une paire de biellettes 20, 22 articulées sur un axe de pivotement 24, la biellette inférieure 20 de transmission étant accouplée mécaniquement à un barreau 23 transversal de commutation, commun à l'ensemble des pôles. Le barreau 23 est constitué par un arbre 26 monté à rotation entre une position d'ouverture et une position de fermeture des contacts 10, 12. Au niveau de chaque pôle est agencée une tringle 30 de liaison qui relie une manivelle du barreau 23 à une cage 28 isolante de support du contact mobile 12. Ce dernier est connecté à une plage 32 de raccordement par un conducteur souple 34, notamment une tresse. Un ressort 36 de pression de contact est agencé entre la cage 28 et la face supérieure de chaque contact mobile 12.The toggle joint device 16 comprises a pair of connecting rods 20, 22 articulated on a pivot axis 24, the lower connecting rod 20 of transmission being mechanically coupled to a transverse switching bar 23, common to all of the poles. The bar 23 is constituted by a shaft 26 rotatably mounted between an open position and a closed position of the contacts 10, 12. At each pole is arranged a connecting rod 30 which connects a crank of the bar 23 to a insulating cage 28 for supporting the movable contact 12. The latter is connected to a connection pad 32 by a flexible conductor 34, in particular a braid. A contact pressure spring 36 is arranged between the cage 28 and the upper face of each movable contact 12.

Le crochet de déclenchement 18 est monté à pivotement sur un axe 38 principal fixe entre une position armée (figure 1) et une position déclenchée. Un ressort d'ouverture 40 est ancré entre un ergot 42 du barreau 23 et un taquet 44 fixe de retenue disposé au-dessus du dispositif à genouillère 16. Un cliquet d'ouverture 46, formé par un levier de verrouillage monté à pivotement sur un axe 48, est piloté par un premier verrou d'accrochage 50 en forme de demi-lune. Un ressort 52 de rappel du cliquet d'ouverture 46 se trouve à l'opposé du premier verrou 50 par rapport à l'axe 48. Une butée 54 ménagée sur le cliquet d'ouverture 46 entre l'axe 48 et le verrou 50, coopère en position armée avec un évidement 56 en V du crochet de déclenchement 18. La biellette supérieure 22 de la genouillère 16 est articulée sur un axe 58 du crochet de déclenchement 18 à l'opposé de l'évidement 56. Un ressort de rappel 60 fixé entre l'axe 58 et le taquet 44, sollicite le crochet 18 dans le sens trigonométrique vers la position armée (figure 1), dans laquelle la butée 54 du cliquet d'ouverture 46 est positionnée dans l'évidement 56 en V du crochet 18.The trigger hook 18 is pivotally mounted on a main axis 38 fixed between an armed position (Figure 1) and a triggered position. An opening spring 40 is anchored between a lug 42 of the bar 23 and a fixed retaining cleat 44 disposed above the toggle joint device 16. An opening pawl 46, formed by a locking lever pivotally mounted on a axis 48, is controlled by a first latch 50 in the shape of a half-moon. A spring 52 for returning the opening pawl 46 is located opposite the first latch 50 relative to the axis 48. A stop 54 formed on the opening pawl 46 between the axis 48 and the latch 50, cooperates in the armed position with a V-shaped recess 56 in the trigger hook 18. The upper link 22 of the toggle joint 16 is articulated on an axis 58 of the trigger hook 18 opposite the recess 56. A return spring 60 fixed between the axis 58 and the cleat 44, biases the hook 18 in the counterclockwise direction towards the armed position (FIG. 1), in which the stop 54 of the opening pawl 46 is positioned in the recess 56 in V of the hook 18.

Le mécanisme 14 comporte une came de réarmement 62 clavetée sur l'axe principal 38 du crochet 18, et coopérant avec un système accumulateur d'énergie 64.The mechanism 14 includes a reset cam 62 keyed to the main axis 38 of the hook 18, and cooperating with an energy storage system 64.

En plus de la came de réarmement 62, le système accumulateur 64 d'énergie est équipé d'un cliquet de fermeture 66 piloté par un deuxième verrou d'accrochage 68, et d'un levier entraîneur 70 monté à pivotement sur un axe 69. Un dispositif élastique d'accumulation d'énergie 71 est agencé entre un logement 74 du châssis et un doigt 76 de transmission du levier entraîneur 70. La came de réarmement 62 coopère avec un galet 78 du levier entraîneur 70, et le dispositif élastique 71 d'accumulation d'énergie sollicite ce dernier en appui de la came 62. Le profil de la came 62 comporte un premier secteur 80 d'armement du ressort de fermeture 72, et un deuxième secteur 82 correspondant à la libération du galet 78 autorisant un pivotement brusque du levier entraîneur 70 dans le sens inverse des aiguilles d'une montre sous l'action de détente du dispositif élastique 71. La came de réarmement 62 est dotée d'autre part d'un ergot 84 susceptible de venir en butée du cliquet de fermeture 66 lorsque l'extrémité du premier secteur 80 de la came 62 se trouve en appui sur le galet 78 du levier entraîneur 70.In addition to the reset cam 62, the energy storage system 64 is equipped with a closing pawl 66 controlled by a second latch 68, and a driving lever 70 pivotally mounted on an axis 69. An elastic energy storage device 71 is arranged between a housing 74 of the chassis and a finger 76 for transmitting the driving lever 70. The reset cam 62 cooperates with a roller 78 of the driving lever 70, and the elastic device 71 d accumulation of energy urges the latter to bear on the cam 62. The profile of the cam 62 comprises a first sector 80 for arming the closing spring 72, and a second sector 82 corresponding to the release of the roller 78 authorizing an abrupt pivoting of the driving lever 70 anticlockwise under the detent action of the elastic device 71. The resetting cam 62 is also provided with a lug 84 capable of coming in stop of the closing pawl 66 when the end of the first sector 80 of the cam 62 is in contact with the roller 78 of the driving lever 70.

Dans la position stable de la figure 1, en position armée du système accumulateur 64, les contacts 10, 12 se trouvent, soit en position d'ouverture, soit en position de fermeture, selon l'état du dispositif à genouillère 16. Le galet 78 en appui sur le premier secteur 80 exerce un couple sur la came de réarmement 62 sollicitant cette dernière en rotation dans le sens des aiguilles d'une montre. Le cliquet de fermeture 66 s'oppose à cette rotation grâce à la retenue de l'ergot 84 de la came 62.In the stable position of FIG. 1, in the armed position of the accumulator system 64, the contacts 10, 12 are either in the open position or in the closed position, depending on the state of the toggle joint device 16. The roller 78 resting on the first sector 80 exerts a torque on the reset cam 62 urging the latter to rotate clockwise. The closing pawl 66 opposes this rotation by virtue of the retention of the lug 84 of the cam 62.

Le mécanisme 14 coopère avec un déclencheur magnétothermique ou électronique (non représenté) pour provoquer l'ouverture automatique des contacts 10, 12, en cas de surcharge ou de défaut. Après ouverture des contacts 10, 12 par le dispositif à genouillère 16, une manoeuvre de fermeture peut être commandée par actionnement du deuxième verrou 68 provoquant la pivotement du cliquet de fermeture 66 autour de son axe 88 dans le sens inverse des aiguilles d'une montre. Il en résulte une libération de l'ergot 84 provoquant sous l'action du galet 78 un pivotement de la came 62 dans le sens des aiguilles d'une montre amenant le deuxième secteur 82 de la came 62 en position de libération du levier entraîneur 70. Ce dernier est alors entraîné dans le sens inverse des aiguilles d'une montre par la détente du dispositif élastique 71 de manière à transmettre une force de fermeture au dispositif à genouillère 16 déplaçant les contacts 10, 12 en position de fermeture (figure 3). Cette manoeuvre de fermeture s'opère à l'encontre de la force du ressort d'ouverture 40, lequel est ainsi automatiquement armé lors de la détente du dispositif élastique 71.The mechanism 14 cooperates with a magnetothermal or electronic trip device (not shown) to cause the automatic opening of the contacts 10, 12, in the event of an overload or a fault. After opening of the contacts 10, 12 by the toggle joint device 16, a closing maneuver can be controlled by actuation of the second latch 68 causing the closing pawl 66 to pivot about its axis 88 in the anticlockwise direction . This results in a release of the lug 84 causing under the action of the roller 78 a pivoting of the cam 62 in a clockwise direction bringing the second sector 82 of the cam 62 in the release position of the driving lever 70 The latter is then driven counterclockwise by the detent of the elastic device 71 so as to transmit a closing force to the toggle device 16 moving the contacts 10, 12 to the closed position (FIG. 3) . This closing maneuver takes place against the force of the opening spring 40, which is thus automatically armed when the elastic device 71 is released.

Le fonctionnement d'un tel mécanisme est décrit en détail dans le document EP-A-222 645 de la demanderesse, et le réarmement du système accumulateur 64 par compression du dispositif élastique 71 s'effectue manuellement ou automatiquement au moyen d'un levier de manoeuvre ou d'un motoréducteur (non représentés) calés sur l'axe principal 38. Cette opération de réarmement par rotation de la came 62 est expliquée en détail dans le document FR-A-2 558 986 de la demanderesse. L'entraînement en rotation de l'axe principal 38 s'effectue dans le sens des aiguilles d'une montre jusqu'à la venue en butée de l'ergot 84 de la came 62 sur le cliquet de fermeture 66. La came de réarmement 62 tourne avec l'axe principal 38 dans le même sens de rotation, et occupe deux positions stables, à savoir une position armée (figure 1) dans laquelle la came 62 est verrouillée par le cliquet de fermeture 66, et une position désarmée (figure 3) autorisant la libération du levier entraîneur 70 et la détente du dispositif élastique 71.The operation of such a mechanism is described in detail in document EP-A-222 645 of the applicant, and the rearming of the accumulator system 64 by compression of the elastic device 71 is carried out manually or automatically by means of a lever. operation or a gearmotor (not shown) fixed on the main axis 38. This rearming operation by rotation of the cam 62 is explained in detail in document FR-A-2 558 986 of the applicant. The main axis 38 is rotated in a clockwise direction until the lug 84 of the cam 62 comes into abutment on the closing pawl 66. The reset cam 62 rotates with the main axis 38 in the same direction of rotation, and occupies two stable positions, namely an armed position (FIG. 1) in which the cam 62 is locked by the pawl closing 66, and a disarmed position (FIG. 3) authorizing the release of the driving lever 70 and the relaxation of the elastic device 71.

Selon l'invention, le dispositif élastique 71 du système accumulateur d'énergie 64 pour la fermeture des contacts 10, 12 du disjoncteur, comporte une liaison télescopique 90 dans laquelle est intégrée une butée d'amortissement 91. La liaison télescopique 90 est équipée d'un guide 92 positionné dans le logement 74 du châssis, et une chape 94 susceptible de coulisser le long du guide 92, et comprenant une encoche de logement du doigt 76 du levier entraîneur 70. Un coulisseau 100 en forme de tiroir intermédiaire, est intercalé entre le guide 92 et la chape 94, et comporte un rebord 102 annulaire coopérant avec un épaulement 104 conjugué situé sur une extension longitudinale 105 de la chape 94 pour former la butée d'amortissement 91.According to the invention, the elastic device 71 of the energy storage system 64 for closing the contacts 10, 12 of the circuit breaker, comprises a telescopic connection 90 in which is integrated a damping stop 91. The telescopic connection 90 is equipped with 'a guide 92 positioned in the housing 74 of the chassis, and a yoke 94 capable of sliding along the guide 92, and comprising a notch for housing the finger 76 of the driving lever 70. A slide 100 in the form of an intermediate drawer is interposed between the guide 92 and the yoke 94, and has an annular rim 102 cooperating with a shoulder 104 conjugate located on a longitudinal extension 105 of the yoke 94 to form the damping stop 91.

Un ressort principal 106 de compression est inséré entre la chape 94, et une embase 108 externe du coulisseau 100, laquelle embase est située à l'opposé du rebord 102. Un ressort auxiliaire 110 de polarisation est agencé coaxialement à l'intérieur du coulisseau 100 en prenant appui sur le guide 92 et l'épaulement 104 de l'extension longitudinale 105 de la chape 94. La raideur du ressort auxiliaire 110 est inférieure à celle du ressort principal 106.A main compression spring 106 is inserted between the yoke 94, and an outer base 108 of the slider 100, which base is located opposite the flange 102. An auxiliary biasing spring 110 is arranged coaxially inside the slider 100 bearing on the guide 92 and the shoulder 104 of the longitudinal extension 105 of the yoke 94. The stiffness of the auxiliary spring 110 is less than that of the main spring 106.

Dans l'état ouvert-armé du mécanisme 14 illustré à la figure 1, la came de réarmement 62 est verrouillée dans la position armée par le cliquet de fermeture 66, et les deux ressorts 106, 110 sont comprimés au maximum par le rapprochement relatif de la chape 94 par rapport au guide 92. Le rebord 102 du coulisseau 100 est séparé longitudinalement de l'épaulement 104 de la chape 94 par une distance 112 prédéterminée.In the open-armed state of the mechanism 14 illustrated in FIG. 1, the reset cam 62 is locked in the armed position by the closing pawl 66, and the two springs 106, 110 are compressed to the maximum by the relative approximation of the yoke 94 relative to the guide 92. The rim 102 of the slide 100 is separated longitudinally from the shoulder 104 of the yoke 94 by a predetermined distance 112.

Après déverrouillage de la came 62 par l'action de déblocage du cliquet de fermeture 66, la détente du ressort principal 106 provoque le pivotement du levier entraîneur 70 autour de l'axe 69 dans le sens inverse des aiguilles d'une montre. Le levier entraîneur 70 agit sur la biellette supérieure 22 de manière à entraîner le dispositif à genouillère 16 jusqu'à une position intérmédiaire correspondant au dépassement du point mort fermeture. Le système accumulateur 64 se trouve alors dans la position de la figure 2, dans laquelle l'épaulement 104 de la chape 94 vient en engagement contre le rebord 102 du coulisseau 100, de manière à constituer la butée d'amortissement 91 destinée à absorber l'excédent d'énergie du ressort 106, avant l'entrée en contact du levier entraîneur 70 contre le plot 114 fixe. La présence de cette butée d'amortissement 91 résulte de l'élasticité des pièces en acier, laquelle pourrait être renforcée au moyen d'une bague élastique (non représentée), agencée soit sur l'épaulement 104, soit sur le rebord 102. La bague élastique pourrait bien entendu être remplacée par tout autre interface d'absorption.After unlocking the cam 62 by the unlocking action of the closing pawl 66, the relaxation of the main spring 106 causes the pivoting of the driving lever 70 around the axis 69 in an anticlockwise direction. The driving lever 70 acts on the upper link 22 so as to drive the toggle joint device 16 to an intermediate position corresponding to the passing of the closing dead center. The accumulator system 64 is then in the position of FIG. 2, in which the shoulder 104 of the yoke 94 comes into engagement against the edge 102 of the slider 100, so as to constitute the damping stop 91 intended to absorb the 'excess energy from the spring 106, before the driving lever 70 comes into contact with the fixed stud 114. The presence of this damping stop 91 results from the elasticity of the steel parts, which could be reinforced by means of an elastic ring (not shown), arranged either on the shoulder 104 or on the flange 102. The elastic ring could of course be replaced by any other absorption interface.

Dans la position fermé-désarmé illustrée à la figure 3, les contacts 10, 12 se trouvent en position de fermeture, et le ressort auxiliaire 110 polarise le levier entraîneur 70 contre le plot 114 fixe.In the closed-disarmed position illustrated in FIG. 3, the contacts 10, 12 are in the closed position, and the auxiliary spring 110 polarizes the driving lever 70 against the fixed stud 114.

Sur la figure 4, l'énergie de commande nécessaire pour la fermeture des contacts 10, 12 du disjoncteur est présentée par la courbe A, laquelle s'étend entre la position O d'ouverture des contacts, et le point intermédiaire PMF de passage du point mort fermeture. La courbe B illustre, l'énergie de fermeture d'un mécanisme classique, pour la course totale 11 du levier entraîneur 70, notamment celui décrit dans le document EP-A-222 645. La courbe C reflète l'énergie de fermeture du mécanisme selon l'invention, grâce à la présence de la butée d'amortissement 91 à l'intérieur de la liaison télescopique 90, permettant d'absorber l'excédent d'énergie après le produit PMF de passage du point mort fermeture. La course 12 est inférieure à la course 11, ce qui améliore l'endurance du mécanisme 14.In FIG. 4, the control energy necessary for the closing of the contacts 10, 12 of the circuit breaker is presented by the curve A, which extends between the position O of opening of the contacts, and the intermediate point PMF of passage of the neutral closing. Curve B illustrates, the closing energy of a conventional mechanism, for the total stroke 11 of the driving lever 70, in particular that described in document EP-A-222 645. Curve C reflects the closing energy of the mechanism according to the invention, thanks to the presence of the damping stop 91 inside the telescopic link 90, making it possible to absorb the excess energy after the PMF product passing from the neutral point of closure. Stroke 12 is less than stroke 11, which improves the endurance of mechanism 14.

La présence de la butée d'amortissement 91 autorise également l'augmentation du nombre de départs à vide du disjoncteur. Certaines normes imposent en effet le désarmement du mécanisme à accumulation d'énergie lors d'un débrochage du disjoncteur, indépendamment de la position ouvert ou fermé des contacts. Un levier de désarmement (non représenté) est rendu actif lors de la course de débrochage du disjoncteur pour agir sur le verrou d'accrochage 68 de manière à déverrouiller le cliquet de fermeture 66 entraînant automatiquement la détente des ressorts 106, 110.The presence of the damping stop 91 also authorizes the increase in the number of vacuum feeders of the circuit breaker. Certain standards indeed require the disarming of the energy storage mechanism when the circuit breaker is withdrawn, regardless of the open or closed position of the contacts. A disarming lever (not shown) is made active during the drawout travel of the circuit breaker to act on the latch 68 so as to unlock the closing pawl 66 automatically causing the springs 106, 110 to relax.

Le système accumulateur d'énergie 64 à butée 91 peut être intégré, soit directement dans le mécanisme 14 d'un disjoncteur monobloc, soit dans un bloc de télécommande accouplé mécaniquement au bloc disjoncteur.The energy storage system 64 with stop 91 can be integrated, either directly into the mechanism 14 of a one-piece circuit breaker, or into a remote control unit mechanically coupled to the circuit breaker unit.

La came de réarmement 62 peut être remplacée par tout autre moyen de commande d'armement du ressort de fermeture.The reset cam 62 can be replaced by any other means for controlling the closing spring.

Claims (6)

1) Mécanisme de commande pour un disjoncteur électrique multipolaire, ayant une paire de contacts (10, 12) séparables par pôle, et comprenant: - un crochet de déclenchement (18) associé à un dispositif à genouillère (16), comprenant une première biellette (20) articulée entre un barreau (23) de commutation, et une deuxième biellette (22), - un système accumulateur d'énergie (64) ayant une liaison télescopique (90) coopérant avec un dispositif élastique (71) ayant au moins un ressort principal (106) de fermeture, - un levier entraîneur (70) agencé entre le système accumulateur d'énergie (64) et la deuxième biellette (22) du dispositif à genouillère (16), - et des moyens de commande pour assurer le passage de la liaison télescopique (90) de la position armée vers la position désarmée, et vice-versa, caractérisé en ce que la liaison télescopique (90) coopère lors du désarmement avec une butée d'amortissement (91) destinée à absorber l'excédent d'énergie du ressort principal (106) de fermeture après dépassement du point mort de fermeture du dispositif à genouillère (16), et avant la fin de course du levier entraîneur (70). 1) Control mechanism for a multipolar electrical circuit breaker, having a pair of contacts (10, 12) separable by pole, and comprising: a trigger hook (18) associated with a toggle joint device (16), comprising a first link (20) articulated between a switching rod (23), and a second link (22), - an energy storage system (64) having a telescopic link (90) cooperating with an elastic device (71) having at least one main closing spring (106), - a driving lever (70) arranged between the energy storage system (64) and the second link (22) of the toggle joint device (16), - And control means for ensuring the passage of the telescopic link (90) from the armed position to the disarmed position, and vice versa, characterized in that the telescopic link (90) cooperates during disarming with a damping stop (91) intended to absorb the excess energy from the main closing spring (106) after passing the closing dead center of the device to toggle (16), and before the end of travel of the driving lever (70). 2) Mécanisme de commande d'un disjoncteur, selon la revendication 1, caractérisé en ce que la butée d'amortissement (91) est intégrée dans la liaison télescopique (90) du système accumulateur (64). 2) Control mechanism of a circuit breaker according to claim 1, characterized in that the damping stop (91) is integrated in the telescopic link (90) of the accumulator system (64). 3) Mécanisme de commande d'un disjoncteur selon la revendication 2, caractérisé en ce que la liaison télescopique (90) comporte une chape (94) en liaison avec le levier entraîneur (70), et coopérant à coulissement avec un guide (92), et un coulisseau (100) agencé en tiroir intermédiaire entre le guide (92) et la chape (94), ledit coulisseau (110) étant équipé d'un rebord (102) de retenue destiné à interférer avec un épaulement (104) conjugué de la chape (94) pour former ladite butée d'amortissement (91). 3) Control mechanism of a circuit breaker according to claim 2, characterized in that the telescopic connection (90) comprises a yoke (94) in connection with the driving lever (70), and cooperating slidingly with a guide (92) , and a slide (100) arranged in an intermediate drawer between the guide (92) and the yoke (94), said slide (110) being equipped with a retaining flange (102) intended to interfere with a shoulder (104) conjugate of the yoke (94) to form said damping stop (91). 4) Mécanisme de commande d'un disjoncteur selon la revendication 3, caractérisé en ce que le ressort principal (106) de compression est inséré entre une surface d'appui de la chape (94), et une embase (108) du coulisseau (100), ladite embase étant située à l'opposé du rebord (102), et qu'un ressort auxiliaire (110) de polarisation se trouve intercalé coaxialement à l'intérieur du coulisseau (100) entre le guide (92), et une extension longitudinale (105) de la chape (94). 4) Control mechanism of a circuit breaker according to claim 3, characterized in that the main compression spring (106) is inserted between a bearing surface of the yoke (94), and a base (108) of the slide ( 100), said base being located opposite the flange (102), and that an auxiliary biasing spring (110) is interposed coaxially inside the slide (100) between the guide (92), and a longitudinal extension (105) of the yoke (94). 5) Mécanisme de commande d'un disjoncteur selon la revendication 4, caractérisé en ce que le ressort auxiliaire (110) prend appui sur l'épaulement (104) de ladite extension (105), à l'opposé de la butée d'amortissement (91). 5) Control mechanism of a circuit breaker according to claim 4, characterized in that the auxiliary spring (110) bears on the shoulder (104) of said extension (105), opposite the damping stop (91). 6) Mécanisme de commande d'un disjoncteur selon l'une des revendications 3 à 5, caractérisé en ce que la butée d'amortissement (91) renferme des moyens élastiques d'absorption des chocs mécaniques, agencés soit sur le rebord (102), soit sur l'épaulement (104). 6) Control mechanism of a circuit breaker according to one of claims 3 to 5, characterized in that the damping stop (91) contains elastic means for absorbing mechanical shocks, arranged either on the flange (102) , or on the shoulder (104).
EP95410068A 1994-08-01 1995-07-04 Circuit breaker mechanism provided with an energy accumulator with a damping stop Expired - Lifetime EP0696039B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9409732 1994-08-01
FR9409732A FR2723252B1 (en) 1994-08-01 1994-08-01 CIRCUIT BREAKER MECHANISM PROVIDED WITH AN ENERGY ACCUMULATOR DEVICE WITH DAMPING STOP

Publications (2)

Publication Number Publication Date
EP0696039A1 true EP0696039A1 (en) 1996-02-07
EP0696039B1 EP0696039B1 (en) 1999-01-13

Family

ID=9466109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95410068A Expired - Lifetime EP0696039B1 (en) 1994-08-01 1995-07-04 Circuit breaker mechanism provided with an energy accumulator with a damping stop

Country Status (7)

Country Link
US (1) US5571255A (en)
EP (1) EP0696039B1 (en)
KR (1) KR100332720B1 (en)
CN (1) CN1052330C (en)
DE (1) DE69507218T2 (en)
ES (1) ES2128685T3 (en)
FR (1) FR2723252B1 (en)

Cited By (4)

* 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
EP1914772A1 (en) * 2006-10-17 2008-04-23 LS Industrial Systems Co., Ltd Air circuit breaker, breaking spring of air circuit breaker and connection method thereof
WO2011012564A1 (en) * 2009-07-31 2011-02-03 Siemens Aktiengesellschaft Electric switchgear having a snap-action drive
CN103077860A (en) * 2012-12-28 2013-05-01 常熟开关制造有限公司(原常熟开关厂） Leakage tripper

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416091C1 (en) * 1994-04-20 1995-06-22 Siemens Ag Circuit-breaker drive unit with lock preventing switch-shaft bouncing back
JP3359560B2 (en) * 1998-03-13 2002-12-24 寺崎電気産業株式会社 Circuit breaker
US6072136A (en) * 1998-05-07 2000-06-06 Eaton Corporation Electrical switching apparatus with modular operating mechanism for mounting and controlling large compression close spring
US6373010B1 (en) 2000-03-17 2002-04-16 General Electric Company Adjustable energy storage mechanism for a circuit breaker motor operator
US6423917B2 (en) 2000-03-17 2002-07-23 General Electric Company Self-disengaging circuit breaker motor operator
US6559743B2 (en) 2000-03-17 2003-05-06 General Electric Company Stored energy system for breaker operating mechanism
DE10065090C1 (en) * 2000-12-21 2002-03-07 Siemens Ag Energy store for contact operating drive in electrical switch has self-supporting unit provided by energy storage spring, U-shaped support platform and counter-bearings
US6437269B1 (en) * 2001-08-07 2002-08-20 Eaton Corporation Spring powered electrical switching apparatus with anti-rollover cam
FR2836277B1 (en) * 2002-02-19 2004-04-16 Alstom SPRING DRIVE MECHANISM FOR RECLINKED MOTION CIRCUIT BREAKER
FR2837619B1 (en) * 2002-03-22 2004-06-25 Schneider Electric Ind Sa HIGH-SPEED LIMIT SWITCHING ELECTRICAL APPARATUS
DE20209550U1 (en) * 2002-06-14 2003-11-27 Siemens Ag Cam stopping device for electrical switch with spring accumulator, includes second part freely pivotably after striking first part fixed to cam
DE10343348B4 (en) * 2003-09-12 2005-08-25 Siemens Ag Drive device for a low-voltage circuit breaker
US7368677B2 (en) * 2005-12-14 2008-05-06 Eaton Corporation Reverse bias hatchet reset spring
US7633364B2 (en) * 2006-03-14 2009-12-15 Eaton Corporation Dampening apparatus and circuit interrupter including the same
FR2925210B1 (en) * 2007-12-17 2010-01-15 Areva T&D Ag COMPACT CONTROL FOR MEDIUM AND HIGH VOLTAGE ELECTRICAL EQUIPMENT
US8063328B2 (en) * 2009-09-16 2011-11-22 Eaton Corporation Electrical switching apparatus and charging assembly therefor
EP2317529B1 (en) 2009-11-03 2017-04-19 ABB Schweiz AG A spring operated actuator for an electrical switching apparatus
EP2317530B1 (en) 2009-11-03 2014-02-26 ABB Technology AG A spring operated actuator for an electrical switching apparatus
ES2465000T3 (en) 2009-11-03 2014-06-04 Abb Technology Ag A spring operated actuator for an electrical switching apparatus
KR101132909B1 (en) * 2011-02-08 2012-04-03 엘에스산전 주식회사 Spring actuator for circuit breaker
CN102779663B (en) * 2012-07-16 2015-07-08 无锡市凯旋电机有限公司 Energy storage device for electric operating mechanism
JP5578217B2 (en) * 2012-09-20 2014-08-27 株式会社安川電機 Switch
CN104425149B (en) * 2013-08-30 2017-05-10 西门子公司 Elastic mechanism of switching device and switching device
EP3208817B1 (en) 2016-02-16 2018-11-14 ABB Schweiz AG A spring operated actuator for an electric apparatus
EP3264432B1 (en) 2016-06-28 2019-01-09 ABB Schweiz AG A spring operated actuator
CN106384684A (en) * 2016-09-08 2017-02-08 国家电网公司 Breaker opening sector plate device
FR3061249B1 (en) * 2016-12-22 2020-05-22 Schneider Electric Industries Sas DEVICE FOR GUIDING A SPRING IN A CONTROL MECHANISM AND ELECTRICAL PROTECTION APPARATUS COMPRISING SAME
FR3105565B1 (en) * 2019-12-23 2022-01-14 Schneider Electric Ind Sas Electric current cut-off device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1988610A (en) * 1933-04-27 1935-01-22 Westinghouse Electric & Mfg Co Operating mechanism for circuit breakers and the like
DE2603536A1 (en) * 1976-01-29 1977-08-11 Siemens Ag HV switchgear drive with energy storage unit - has movable support with piston in fixed cylinder with spring and retainer
FR2558986A1 (en) 1984-01-30 1985-08-02 Merlin Gerin DEVICE FOR CONTROLLING AN ELECTRIC CIRCUIT BREAKER
EP0222645A1 (en) 1985-10-31 1987-05-20 Merlin Gerin Operating mechanism for a circuit breaker provided with an energy storing device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910006799B1 (en) * 1987-09-26 1991-09-02 미쓰비시전기 주식회사 Operation mechanism of breaker
US5004875A (en) * 1988-10-11 1991-04-02 Siemens Energy & Automation, Inc. Stored energy contact operating mechanism
US5322982A (en) * 1992-05-05 1994-06-21 Square D Company Fusible switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1988610A (en) * 1933-04-27 1935-01-22 Westinghouse Electric & Mfg Co Operating mechanism for circuit breakers and the like
DE2603536A1 (en) * 1976-01-29 1977-08-11 Siemens Ag HV switchgear drive with energy storage unit - has movable support with piston in fixed cylinder with spring and retainer
FR2558986A1 (en) 1984-01-30 1985-08-02 Merlin Gerin DEVICE FOR CONTROLLING AN ELECTRIC CIRCUIT BREAKER
EP0222645A1 (en) 1985-10-31 1987-05-20 Merlin Gerin Operating mechanism for a circuit breaker provided with an energy storing device

Cited By (6)

* 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
EP1914772A1 (en) * 2006-10-17 2008-04-23 LS Industrial Systems Co., Ltd Air circuit breaker, breaking spring of air circuit breaker and connection method thereof
WO2011012564A1 (en) * 2009-07-31 2011-02-03 Siemens Aktiengesellschaft Electric switchgear having a snap-action drive
CN103077860A (en) * 2012-12-28 2013-05-01 常熟开关制造有限公司(原常熟开关厂） Leakage tripper
CN103077860B (en) * 2012-12-28 2015-02-25 常熟开关制造有限公司(原常熟开关厂） Leakage tripper

Also Published As

Publication number Publication date
US5571255A (en) 1996-11-05
ES2128685T3 (en) 1999-05-16
KR960008885A (en) 1996-03-22
KR100332720B1 (en) 2002-11-23
DE69507218D1 (en) 1999-02-25
FR2723252A1 (en) 1996-02-02
EP0696039B1 (en) 1999-01-13
DE69507218T2 (en) 1999-07-29
FR2723252B1 (en) 1996-09-13
CN1052330C (en) 2000-05-10
CN1119781A (en) 1996-04-03

Similar Documents

Publication Publication Date Title
EP0696039B1 (en) Circuit breaker mechanism provided with an energy accumulator with a damping stop
EP0789380B1 (en) Operating mechanism for a circuit breaker with a latch disengageable by a short circuit
EP0222645B1 (en) Operating mechanism for a circuit breaker provided with an energy storing device
EP0612091B1 (en) Remote-controlled circuit-breaker with resetting cam
EP0140761B1 (en) Operating mechanism for a low-voltage multi-pole circuit breaker
EP0997919B1 (en) Switching device having a mechanical signaling element with three positions
FR2578354A1 (en) CIRCUIT BREAKER THAT CAN OPERATE AS A SWITCH
EP0205361B1 (en) Hand-actuated snap-closing mechanism for a miniaturized circuit breaker
EP0221430B1 (en) Operating device for a circuit breaker, and circuit breaker provided with this device
FR2478368A1 (en) MANEUVER MECHANISM FOR TETRAPOLAR CIRCUIT BREAKER
EP0277851B1 (en) Control mechanism with a latching device for a three-position circuit breaker
EP0058585B1 (en) Operating mechanism for electrical switching apparatuses with three separate positions
FR2837619A1 (en) HIGH-SPEED LIMIT SWITCHING ELECTRICAL APPARATUS
FR2654254A1 (en) REMOTE CONTROL DEVICE FOR ELECTRIC CIRCUIT BREAKER.
FR2605454A1 (en) Control mechanism for a miniature electric circuit breaker with automatic reset
EP0571258B1 (en) Protective switching device
EP0325501B1 (en) Automatic switches, in particular differential switches and circuit breakers
FR2656155A1 (en) Adaptation accessory for a multi-pole differential switch
EP0461027B1 (en) Differential release device
EP1274109A1 (en) Circuit breaker and it's opperating mechanism
EP0650178A1 (en) Interface adaptor for multipolar differential switch
EP0951044A1 (en) Indicating auxialary block for a circuit breaker
FR2654253A1 (en) DEVICE FOR THE CLOSURE OF THE MOBILE LEVER CONNECTIONS, IN PARTICULAR FOR A BIPOLAR BREAKER FOR PROTECTION AGAINST LEAKAGE CURRENTS.
FR2581805A1 (en) Multipole disconnectable circuit breaker equipped with a device for disarming and automatic tripping during withdrawal.
FR2553930A1 (en) Reversible mechanism for controlling a multipole limiter circuit breaker

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): DE ES GB IT

17P Request for examination filed

Effective date: 19960723

17Q First examination report despatched

Effective date: 19970408

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT

REF Corresponds to:

Ref document number: 69507218

Country of ref document: DE

Date of ref document: 19990225

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

Effective date: 19990301

ITF It: translation for a ep patent filed

Owner name: EUROPATENT S.A.S.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2128685

Country of ref document: ES

Kind code of ref document: T3

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

Ref country code: GB

Payment date: 20010704

Year of fee payment: 7

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

Ref country code: DE

Payment date: 20010705

Year of fee payment: 7

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

Ref country code: ES

Payment date: 20010719

Year of fee payment: 7

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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: 20020704

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: 20020705

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: 20030201

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

Effective date: 20020704

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030811

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: 20050704