EP0935272B1 - Trip device for a circuit breaker with an electrical fault signalisation - Google Patents

Trip device for a circuit breaker with an electrical fault signalisation Download PDF

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Publication number
EP0935272B1
EP0935272B1 EP99410004A EP99410004A EP0935272B1 EP 0935272 B1 EP0935272 B1 EP 0935272B1 EP 99410004 A EP99410004 A EP 99410004A EP 99410004 A EP99410004 A EP 99410004A EP 0935272 B1 EP0935272 B1 EP 0935272B1
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EP
European Patent Office
Prior art keywords
trip
actuating part
actuating
circuit breaker
trip device
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.)
Expired - Lifetime
Application number
EP99410004A
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German (de)
French (fr)
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EP0935272A1 (en
Inventor
Gilles Baginski
Gilles Budillon
Jean-Pierre Nereau
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication date
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Publication of EP0935272A1 publication Critical patent/EP0935272A1/en
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Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches

Definitions

  • the SDE function of the electrical fault signal indicates the nature of the default electric trip. This is a mechanical and electrical signal that simultaneously locks the circuit breaker in the open state. The reclosing of the circuit breaker is only possible if the user has previously cleared the locking by recalling the signaling member in a rest position.
  • the object of the invention is to provide a tripping device for a circuit breaker with electrical fault signaling, allowing the customer to choose the operating mode himself, with or without reclosing the circuit breaker in the presence of the indication of the fault. .
  • the triggering device is characterized in that the trigger bar is subdivided into a first actuating part associated with the trigger rod of the actuator, and a second actuating part cooperating with the actuating member. signaling, that a mechanical connection coupling is arranged between the two actuating parts being adjustable between a coupled position and a disengaged position, and that a control lever ensures the locking in the active position of the second piece of actuation to keep the fault information on the signaling member, while the first actuating part automatically returns to the inactive position when said mechanical connection is in the disengaged position.
  • the mechanical coupling connection between the two actuating parts of the trip bar is reversible between the coupled position and the disengaged position, and vice versa.
  • control lever is pivotally mounted on an axis between a first retaining position on the second actuating part in the inactive position, and a second position ensuring said locking in the active position.
  • a return spring urges the control lever to said second locking position after the mechanism is triggered.
  • the coupling mechanical connection comprises a male transmission element capable of cooperating with a female element following a relative displacement in translation of the two actuating parts.
  • Each actuating part of the trip bar is biased to the inactive position by a return spring.
  • the electrical fault indicating member comprises an auxiliary contact controlled by means of a transmission lever when the second actuating part is driven into the active position.
  • an electric default trigger device 10 is associated with a control mechanism 12 to cause the separation of the contacts of a circuit breaker when detecting a fault current.
  • the triggering device 10 is housed in a housing 14 of molded insulating material, enclosing an actuator 16 cooperating with a rotating trigger bar 18, and a signaling member 20, called SDE electrical fault signal.
  • the actuator 16 comprises an electromagnetic relay disposed in a compartment 22 of the housing 14, and having a control coil electrically connected to a processing circuit in connection with the current sensors (not shown).
  • the actuator 16 is provided with a magnetic core movable in translation, coupled to a trigger rod 24 capable of occupying an armed position or a triggered position, respectively when the intensity of the excitation current of the coil is in below and above a predetermined threshold.
  • the relay may be of the type described in document FR-A-2,573,570, but any other relay could of course be used.
  • the trip rod 24 of the relay extends perpendicularly with respect to the transverse trigger bar 18, which is provided with a lateral tab 26 for transmitting the tripping order to the control half-moon 28 of the ratchet. opening of the mechanism 12.
  • the lug assembly 26 of the first piece 30, and the half-moon 28 constitutes a mechanical trigger connection 29 with the mechanism 12.
  • the signaling member 20 is constituted by an auxiliary contact 27 indicating the electric default trigger when moving the trigger bar 18 to the active position following the intervention of the relay.
  • the trigger bar 18 comprises two separate actuating parts 30, 32, mounted in transverse alignment along the axis 34 of rotation.
  • the two parts 30, 32 are equipped with a mechanical connection coupling 36 operable between a coupled position ( Figures 2 and 3), or a disengaged position ( Figure 4).
  • the two actuating parts 30, 32 are secured to one another, and simultaneously driven in rotation so as to constitute a single-piece release bar 18, locked in the active position during the passage of the actuator 16 to the triggered position.
  • the locking of the trip bar 18 is ensured by means of a control lever 38 cooperating with the second actuating part 32.
  • the control lever 38 is pivotally mounted on an axis 40 intermediate between a first retaining position of the second piece 32 in the inactive position (FIG. 5), and a second locking position of the second piece 32 in the signaling position. triggering ( Figure 6).
  • One end of the control lever 38 is provided with a retaining hook 42 cooperating in the first position with a bearing surface 44 of the second piece 32 ( Figure 5).
  • the opposite end 45 of the control lever 38 is subjected to the action of a compression spring 46 which tends to move said lever 38 towards the second locking position after the erasing of the bearing surface 44 (FIG. ).
  • Each actuating piece (30, 32) of the trigger bar 18 is urged towards the inactive position by a return spring 48, 50 formed by a torsion spring threaded onto a cylindrical end piece 52, 54 of the piece 30, 32 corresponding.
  • the first actuating part 30 is provided with a first pivot 56 rotatable housed in a bearing on one of the side faces of the box 14.
  • the second actuating part 32 similarly comprises a second pivot 58 positioned in a bearing of the opposite face, and aligned with the first pivot 56 to constitute the axis of rotation 34 of the trigger bar 18.
  • the endpiece 54 of the second part 32 is extended axially by a half-shaft 62 arranged facing another half-shaft 60 of the first actuating part 30.
  • the mechanical linkage coupling 36 comprises a male element 64 secured to the second actuating part 32 and intended to be translated into a notch of a female element 66 of the first actuating part 30 to obtain the position coupled ( Figure 3).
  • An opposite translation movement causes the connection mechanical coupling 36 to the disengaged position as soon as the male element 64 has left the notch of the female element 66 ( Figure 4).
  • the setting by the user of the mechanical coupling connection 36 of the trip bar 18 between the coupled position and the disengaged position, and vice versa, provides two modes of operation of the trigger device 10 according to the invention.
  • the male element 64 is introduced into the female element 66 by bringing the second actuating part 32 closer to the first part 30 (FIG. 3), positioning the two half-shafts 60, 62 abutting one another .
  • the trip bar 18 is in the inactive position, and the actuator 16 is in the armed position.
  • the retaining hook 42 is in contact with the bearing surface 44 of the second actuating part 32 and the spring 46 is compressed.
  • the rod 24 of the actuator 16 comes to the triggered position rotating the first piece 30 and the second piece 32 to the active position.
  • the hook 42 is released, and the control lever 38 moves from the first retaining position to the second locking position under the detent action of the spring 46.
  • the tab 26 of the first actuating piece 30 of the bar tripping 18 transmits the tripping order to the mechanism 12 of the circuit breaker, and the second part 32 cooperates with the signaling member 20 via a transmission lever 68 to provide the SDE function of the electrical fault signal (FIG. ).
  • the SDE function makes it possible to signal to the user the nature of the electric default trip, and the control lever 38 ensures the positive locking of the trip bar 18 in the active position.
  • the circuit breaker remains kept in the open state, making it impossible to close the contacts again if there is no manual or electromechanical intervention on the control lever 38.
  • the user For the reclosing operation of the circuit breaker, the user must deliberately erase the locking of the trip bar 18, by pressing (see arrow F in Figure 6) on the end 45 of the control lever 38.
  • the two springs 50, 52 return the trip bar 18 to the inactive position ( Figure 5) and cause the hooking of the control lever 38 in the first retaining position. Then simply operate the mechanism 12 for closing the contacts of the circuit breaker.
  • the two actuating parts 30, 32 of the trip bar 18 are rotated towards the active position, causing the tripping of the circuit breaker via the mechanical trigger connection 29, and the indication of the electrical fault by means of the auxiliary contact 27 of the signaling member 20.
  • the rotational drive of the second piece 32 by the first piece 30 is unidirectional in the direction of pivoting corresponding to the trigger. In the opposite direction to the tripping, the connection between the two parts 30, 32 is completely broken.
  • the second actuating part 32 remains locked in the active position by the control lever 38 (FIG. 6), but the first actuating part 30 automatically returns to the inactive position under the return action of the spring 48. SDE fault remains, while the circuit breaker can be operated to the closed state to ensure continuity of service.
  • the user can thus order the reclosing of the circuit breaker after tripping, while retaining the information of the fault that has occurred.

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Description

L'invention est relative à un dispositif de déclenchement pour un disjoncteur électrique, comprenant :

  • une barre de déclenchement rotative coopérant en position active avec un actionneur pour transmettre en cas de défaut électrique un ordre de déclenchement au mécanisme,
  • un organe de signalisation du défaut après déclenchement du mécanisme,
  • et des moyens de rappel de la barre de déclenchement vers une position inactive autorisant la refermeture du disjoncteur.
The invention relates to a tripping device for an electric circuit breaker, comprising:
  • a rotary actuating bar cooperating in an active position with an actuator for transmitting, in the event of an electrical fault, a trip command to the mechanism,
  • a fault signaling member after triggering the mechanism,
  • and return means of the trip bar to an inactive position allowing the reclosing of the circuit breaker.

La fonction SDE du signal défaut électrique indique la nature du déclenchement par défaut électrique. Il s'agit d'une signalisation mécanique et électrique qui verrouille simultanément le disjoncteur dans l'état ouvert. La refermeture du disjoncteur n'est possible que si l'utilisateur a préalablement effacé le verrouillage en rappelant l'organe de signalisation dans une position de repos.The SDE function of the electrical fault signal indicates the nature of the default electric trip. This is a mechanical and electrical signal that simultaneously locks the circuit breaker in the open state. The reclosing of the circuit breaker is only possible if the user has previously cleared the locking by recalling the signaling member in a rest position.

Dans certaine applications, il a déjà été proposé d'assurer après déclenchement, la refermeture du disjoncteur pour assurer une continuité de service, tout en conservant l'information du défaut. Les systèmes de déclenchement connus à ce jour sont irréversibles, et doivent être personnalisés en usine lors de la fabrication.In some applications, it has already been proposed to ensure after tripping, the reclosing of the circuit breaker to ensure continuity of service, while retaining the fault information. The trigger systems known to date are irreversible, and must be customized at the factory during manufacture.

On obtient alors deux types de disjoncteurs :

  • soit un premier type de disjoncteur ne permettant pas la refermeture des contacts aussi longtemps que la signalisation du défaut n'est pas effacée ;
  • soit un deuxième type de disjoncteur autorisant la refermeture des contacts en conservant l'information du défaut.
We then obtain two types of breakers:
  • either a first type of circuit breaker does not allow the reclosing of the contacts as long as the signaling of the fault is not cleared;
  • or a second type of circuit breaker allowing the closure of the contacts retaining the fault information.

Ces deux systèmes de déclenchement compliquent la gestion de fabrication en usine. De plus, le client doit en fonction de ses besoins, faire le choix du type de déclenchement lors de l'établissement de la commande.Both of these trigger systems complicate factory manufacturing management. In addition, the customer must according to his needs, make the choice of the type of trigger during the establishment of the order.

L'objet de l'invention consiste à réaliser un dispositif de déclenchement pour un disjoncteur à signalisation de défaut électrique, permettant au client de choisir lui-même le mode de fonctionnement, avec ou sans refermeture du disjoncteur en présence de l'indication du défaut.The object of the invention is to provide a tripping device for a circuit breaker with electrical fault signaling, allowing the customer to choose the operating mode himself, with or without reclosing the circuit breaker in the presence of the indication of the fault. .

Le dispositif de déclenchement selon l'invention est caractérisé en ce que la barre de déclenchement est subdivisée en une première pièce d'actionnement associée à la tige de déclenchement de l'actionneur, et une deuxième pièce d'actionnement coopérant avec l'organe de signalisation, qu'une liaison mécanique d'accouplement est agencée entre les deux pièces d'actionnement en étant ajustable entre une position accouplée et une position débrayée, et qu'un levier de commande assure le verrouillage en position active de la deuxième pièce d'actionnement pour conserver l'information du défaut sur l'organe de signalisation, alors que la première pièce d'actionnement revient automatiquement vers la position inactive lorsque ladite liaison mécanique se trouve en position débrayée.The triggering device according to the invention is characterized in that the trigger bar is subdivided into a first actuating part associated with the trigger rod of the actuator, and a second actuating part cooperating with the actuating member. signaling, that a mechanical connection coupling is arranged between the two actuating parts being adjustable between a coupled position and a disengaged position, and that a control lever ensures the locking in the active position of the second piece of actuation to keep the fault information on the signaling member, while the first actuating part automatically returns to the inactive position when said mechanical connection is in the disengaged position.

Selon une caractéristique de l'invention, la liaison mécanique d'accouplement entre les deux pièces d'actionnement de la barre de déclenchement est réversible entre la position accouplée et la position débrayée, et vice-versa.According to one characteristic of the invention, the mechanical coupling connection between the two actuating parts of the trip bar is reversible between the coupled position and the disengaged position, and vice versa.

Selon une autre caractéristique de l'invention, le levier de commande est monté à pivotement sur un axe entre une première position de retenue sur la deuxième pièce d'actionnement dans la position inactive, et une deuxième position assurant ledit verrouillage en position active. Un ressort de rappel sollicite le levier de commande vers ladite deuxième position de verrouillage après le déclenchement du mécanisme.According to another characteristic of the invention, the control lever is pivotally mounted on an axis between a first retaining position on the second actuating part in the inactive position, and a second position ensuring said locking in the active position. A return spring urges the control lever to said second locking position after the mechanism is triggered.

Selon un mode de réalisation préférentiel, la liaison mécanique d'accouplement comporte un élément mâle de transmission susceptible de coopérer avec un élément femelle suite à un déplacement relatif en translation des deux pièces d'actionnement. Chaque pièce d'actionnement de la barre de déclenchement est sollicitée vers la position inactive par un ressort de rappel. L'organe de signalisation du défaut électrique comporte un contact auxiliaire piloté par l'intermédiaire d'un levier de transmission lorsque la deuxième pièce d'actionnement est entraînée dans la position active.According to a preferred embodiment, the coupling mechanical connection comprises a male transmission element capable of cooperating with a female element following a relative displacement in translation of the two actuating parts. Each actuating part of the trip bar is biased to the inactive position by a return spring. The electrical fault indicating member comprises an auxiliary contact controlled by means of a transmission lever when the second actuating part is driven into the active position.

D'autres avantages et caractéristiques 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 est une vue en perspective du dispositif de déclenchement selon l'invention
  • la figure 2 montre une vue en perspective à échelle agrandie de la barre de déclenchement de la figure 1 ;
  • la figure 3 est une vue en coupe transversale selon la ligne 3-3 de la figure 1, la liaison mécanique d'accouplement étant représentée en position accouplée ;
  • la figure 4 est une vue identique de la figure 3 avec la liaison mécanique représentée en position débrayée ;
  • la figure 5 montre une vue en coupe longitudinale selon la ligne 5-5 de la figure 1, la barre de déclenchement étant représentée en position inactive de non déclenchement
  • la figure 6 est une vue identique de la figure 5, après déclenchement du dispositif.
Other advantages and features will emerge more clearly from the following description of an embodiment of the invention, given by way of non-limiting example and represented in the accompanying drawings, in which:
  • FIG. 1 is a perspective view of the tripping device according to the invention.
  • Figure 2 shows an enlarged perspective view of the trigger bar of Figure 1;
  • Figure 3 is a cross-sectional view along the line 3-3 of Figure 1, the mechanical coupling connection being shown in the coupled position;
  • Figure 4 is an identical view of Figure 3 with the mechanical connection shown in the disengaged position;
  • FIG. 5 shows a view in longitudinal section along the line 5-5 of FIG. 1, the trigger bar being represented in the inactive position of non-tripping
  • Figure 6 is an identical view of Figure 5, after triggering the device.

Sur la figure 1 un dispositif de déclenchement 10 par défaut électrique est associé à un mécanisme 12 de commande pour provoquer la séparation des contacts d'un disjoncteur lors de la détection d'un courant de défaut. Le dispositif de déclenchement 10 est logé dans un boîtier 14 en matériau isolant moulé, renfermant un actionneur 16 coopérant avec une barre de déclenchement 18 rotative, et un organe de signalisation 20, appelé signal défaut électrique SDE.In Figure 1 an electric default trigger device 10 is associated with a control mechanism 12 to cause the separation of the contacts of a circuit breaker when detecting a fault current. The triggering device 10 is housed in a housing 14 of molded insulating material, enclosing an actuator 16 cooperating with a rotating trigger bar 18, and a signaling member 20, called SDE electrical fault signal.

L'actionneur 16 comporte un relais électromagnétique disposé dans un compartiment 22 du boîtier 14, et ayant une bobine de commande connectée électriquement à un circuit de traitement en liaison avec les capteurs de courant (non représentés). L'actionneur 16 est pourvu d'un noyau magnétique mobile en translation, accouplé à une tige de déclenchement 24 susceptible d'occuper une position armée ou une position déclenchée, respectivement lorsque l'intensité du courant d'excitation de la bobine se trouve en-dessous et au-dessus d'un seuil prédéterminé. Le relais peut être du type décrit dans le document FR-A-2.573.570, mais tout autre relais pourrait bien entendu être utilisé. La tige de déclenchement 24 du relais s'étend perpendiculairement par rapport à la barre de déclenchement 18 transversale, laquelle est dotée d'une patte 26 latérale destinée à transmettre l'ordre de déclenchement à la demi-lune 28 de commande du cliquet d'ouverture du mécanisme 12. L'ensemble patte 26 de la première pièce 30, et la demi-lune 28 constitue une liaison mécanique de déclenchement 29 avec le mécanisme 12.The actuator 16 comprises an electromagnetic relay disposed in a compartment 22 of the housing 14, and having a control coil electrically connected to a processing circuit in connection with the current sensors (not shown). The actuator 16 is provided with a magnetic core movable in translation, coupled to a trigger rod 24 capable of occupying an armed position or a triggered position, respectively when the intensity of the excitation current of the coil is in below and above a predetermined threshold. The relay may be of the type described in document FR-A-2,573,570, but any other relay could of course be used. The trip rod 24 of the relay extends perpendicularly with respect to the transverse trigger bar 18, which is provided with a lateral tab 26 for transmitting the tripping order to the control half-moon 28 of the ratchet. opening of the mechanism 12. The lug assembly 26 of the first piece 30, and the half-moon 28 constitutes a mechanical trigger connection 29 with the mechanism 12.

L'organe de signalisation 20 est constitué par un contact auxiliaire 27 indiquant le déclenchement par défaut électrique lors du déplacement de la barre de déclenchement 18 vers la position active suite à l'intervention du relais.The signaling member 20 is constituted by an auxiliary contact 27 indicating the electric default trigger when moving the trigger bar 18 to the active position following the intervention of the relay.

En référence aux figures 2 à 6, la barre de déclenchement 18 comporte deux pièces d'actionnement 30, 32 distinctes, montées en alignement transversal le long de l'axe 34 de rotation. Les deux pièces 30, 32 sont équipées d'une liaison mécanique d'accouplement 36 manoeuvrable entre une position accouplée (figures 2 et 3), ou une position débrayée (figure 4).Referring to Figures 2 to 6, the trigger bar 18 comprises two separate actuating parts 30, 32, mounted in transverse alignment along the axis 34 of rotation. The two parts 30, 32 are equipped with a mechanical connection coupling 36 operable between a coupled position (Figures 2 and 3), or a disengaged position (Figure 4).

Dans la position accouplée, les deux pièces d'actionnement 30, 32 sont solidarisées l'une à l'autre, et entraînées simultanément en rotation de manière à constituer une barre de déclenchement 18 monobloc, verrouillée dans la position active lors du passage de l'actionneur 16 vers la position déclenchée. Le verrouillage de la barre de déclenchement 18 est assuré au moyen d'un levier de commande 38 coopérant avec la deuxième pièce 32 d'actionnement.In the coupled position, the two actuating parts 30, 32 are secured to one another, and simultaneously driven in rotation so as to constitute a single-piece release bar 18, locked in the active position during the passage of the actuator 16 to the triggered position. The locking of the trip bar 18 is ensured by means of a control lever 38 cooperating with the second actuating part 32.

Le levier de commande 38 est monté à pivotement sur un axe 40 intermédiaire entre une première position de retenue de la deuxième pièce 32 dans la position inactive (figure 5), et une deuxième position de verrouillage de la deuxième pièce 32 dans la position de signalisation du déclenchement (figure 6). L'une des extrémités du levier de commande 38 est dotée d'un crochet de retenue 42 coopérant dans la première position avec une surface d'appui 44 de la deuxième pièce 32 (figure 5). L'extrémité opposée 45 du levier de commande 38 est soumise à l'action d'un ressort 46 de compression qui tend à déplacer ledit levier 38 vers la deuxième position de verrouillage après l'effacement de la surface d'appui 44 (figure 6).The control lever 38 is pivotally mounted on an axis 40 intermediate between a first retaining position of the second piece 32 in the inactive position (FIG. 5), and a second locking position of the second piece 32 in the signaling position. triggering (Figure 6). One end of the control lever 38 is provided with a retaining hook 42 cooperating in the first position with a bearing surface 44 of the second piece 32 (Figure 5). The opposite end 45 of the control lever 38 is subjected to the action of a compression spring 46 which tends to move said lever 38 towards the second locking position after the erasing of the bearing surface 44 (FIG. ).

Chaque pièce d'actionnement (30, 32) de la barre de déclenchement 18 est sollicitée vers la position inactive par un ressort de rappel 48, 50 formé par un ressort de torsion enfilé sur un embout 52, 54 cylindrique de la pièce 30, 32 correspondante. La première pièce d'actionnement 30 est pourvue d'un premier pivot 56 rotatif logé dans un palier sur l'une des faces latérales du boiter 14.Each actuating piece (30, 32) of the trigger bar 18 is urged towards the inactive position by a return spring 48, 50 formed by a torsion spring threaded onto a cylindrical end piece 52, 54 of the piece 30, 32 corresponding. The first actuating part 30 is provided with a first pivot 56 rotatable housed in a bearing on one of the side faces of the box 14.

La deuxième pièce d'actionnement 32 comprend d'une manière similaire un deuxième pivot 58 positionné dans un palier de la face opposée, et aligné avec le premier pivot 56 pour constituer l'axe de rotation 34 de la barre de déclenchement 18. L'embout 54 de la deuxième pièce 32 est prolongé axialement par un demi-arbre 62 disposé en regard d'un autre demi-arbre 60 de la première pièce d'actionnement 30.The second actuating part 32 similarly comprises a second pivot 58 positioned in a bearing of the opposite face, and aligned with the first pivot 56 to constitute the axis of rotation 34 of the trigger bar 18. The endpiece 54 of the second part 32 is extended axially by a half-shaft 62 arranged facing another half-shaft 60 of the first actuating part 30.

La liaison mécanique d'accouplement 36 comporte un élément mâle 64 solidaire de la deuxième pièce d'actionnement 32 et destiné à s'engager par translation dans une encoche d'un élément femelle 66 de la première pièce d'actionnement 30 pour obtenir la position accouplée (figure 3). Un mouvement de translation opposé entraîne la liaison mécanique d'accouplement 36 vers la position débrayée dès que l'élément mâle 64 a quitté l'encoche de l'élément femelle 66 (figure 4).The mechanical linkage coupling 36 comprises a male element 64 secured to the second actuating part 32 and intended to be translated into a notch of a female element 66 of the first actuating part 30 to obtain the position coupled (Figure 3). An opposite translation movement causes the connection mechanical coupling 36 to the disengaged position as soon as the male element 64 has left the notch of the female element 66 (Figure 4).

Le fonctionnement du dispositif de déclenchement 10 selon les figures 1 à 6 est le suivant :The operation of the triggering device 10 according to FIGS. 1 to 6 is as follows:

Le réglage par l'utilisateur de la liaison mécanique d'accouplement 36 de la barre de déclenchement 18 entre la position accouplée et la position débrayée, et vice-versa, permet d'obtenir deux modes de fonctionnement du dispositif de déclenchement 10 selon l'invention.The setting by the user of the mechanical coupling connection 36 of the trip bar 18 between the coupled position and the disengaged position, and vice versa, provides two modes of operation of the trigger device 10 according to the invention.

Position accouplée :Mated position:

L'élément mâle 64 est introduit dans l'élément femelle 66 en rapprochant la deuxième pièce d'actionnement 32 vers la première pièce 30 (figure 3), positionnant les deux demi-arbres 60, 62 en aboutement l'un contre l'autre. En l'absence de défaut, la barre de déclenchement 18 se trouve en position inactive, et l'actionneur 16 est en position armée. Le crochet de retenue 42 est en contact avec la surface d'appui 44 de la deuxième pièce d'actionnement 32 et le ressort 46 est comprimé.The male element 64 is introduced into the female element 66 by bringing the second actuating part 32 closer to the first part 30 (FIG. 3), positioning the two half-shafts 60, 62 abutting one another . In the absence of a fault, the trip bar 18 is in the inactive position, and the actuator 16 is in the armed position. The retaining hook 42 is in contact with the bearing surface 44 of the second actuating part 32 and the spring 46 is compressed.

Lors de l'apparition d'un courant de défaut , la tige 24 de l'actionneur 16 vient en position déclenchée entraînant en rotation la première pièce 30 et la deuxième pièce 32 vers la position active. Le crochet 42 est libéré, et le levier de commande 38 passe de la première position de retenue vers la deuxième position de verrouillage sous l'action de détente du ressort 46. La patte 26 de la première pièce d'actionnement 30 de la barre de déclenchement 18 transmet l'ordre de déclenchement au mécanisme 12 du disjoncteur, et la deuxième pièce 32 coopère avec l'organe de signalisation 20 par l'intermédiaire d'un levier de transmission 68 pour assurer la fonction SDE du signal défaut électrique (figure 6). La fonction SDE permet de signaler à l'utilisateur la nature du déclenchement par défaut électrique, et le levier de commande 38 assure le verrouillage positif de la barre de déclenchement 18 dans la position active. Le disjoncteur reste maintenu dans l'état ouvert, rendant impossible toute refermeture des contacts en l'absence d'intervention manuelle ou électro-mécanique sur le levier de commande 38.At the occurrence of a fault current, the rod 24 of the actuator 16 comes to the triggered position rotating the first piece 30 and the second piece 32 to the active position. The hook 42 is released, and the control lever 38 moves from the first retaining position to the second locking position under the detent action of the spring 46. The tab 26 of the first actuating piece 30 of the bar tripping 18 transmits the tripping order to the mechanism 12 of the circuit breaker, and the second part 32 cooperates with the signaling member 20 via a transmission lever 68 to provide the SDE function of the electrical fault signal (FIG. ). The SDE function makes it possible to signal to the user the nature of the electric default trip, and the control lever 38 ensures the positive locking of the trip bar 18 in the active position. The circuit breaker remains kept in the open state, making it impossible to close the contacts again if there is no manual or electromechanical intervention on the control lever 38.

Pour la manoeuvre de refermeture du disjoncteur, l'utilisateur doit volontairement effacer le verrouillage de la barre de déclenchement 18, en appuyant (voir flèche F sur figure 6) sur l'extrémité 45 du levier de commande 38. Les deux ressorts 50, 52 ramènent la barre de déclenchement 18 vers la position inactive (figure 5) et provoquent l'accrochage du levier de commande 38 dans la première position de retenue. Il suffit ensuite de manoeuvrer le mécanisme 12 pour la fermeture des contacts du disjoncteur.For the reclosing operation of the circuit breaker, the user must deliberately erase the locking of the trip bar 18, by pressing (see arrow F in Figure 6) on the end 45 of the control lever 38. The two springs 50, 52 return the trip bar 18 to the inactive position (Figure 5) and cause the hooking of the control lever 38 in the first retaining position. Then simply operate the mechanism 12 for closing the contacts of the circuit breaker.

Position débrayée :Disengaged position:

Le passage de la liaison mécanique d'accouplement 36 vers la position débrayée nécessite une simple action de retrait sur la deuxième pièce d'actionnement 32. Cette action de réglage peut être opérée en exploitation par l'utilisateur (figure 4). En l'absence de défaut, le dispositif de déclenchement 10 se trouve dans l'état armé de la figure 5.The passage of the mechanical linkage coupling 36 to the disengaged position requires a simple retraction action on the second actuating part 32. This adjustment action can be operated by the user (Figure 4). In the absence of a fault, the triggering device 10 is in the armed state of FIG. 5.

Lorsque l'actionneur 16 reçoit un signal de déclenchement suite à un défaut électrique, les deux pièces d'actionnement 30, 32 de la barre de déclenchement 18 sont entraînées en rotation vers la position active, en provoquant le déclenchement du disjoncteur par l'intermédiaire de la liaison mécanique de déclenchement 29, et l'indication du défaut électrique au moyen du contact auxiliaire 27 de l'organe de signalisation 20. L'entraînement en rotation de la deuxième pièce 32 par la première pièce 30 est unidirectionnel dans le sens de pivotement correspondant au déclenchement. Dans le sens opposé au déclenchement, la liaison entre les deux pièces 30, 32 est totalement rompue. La deuxième pièce d'actionnement 32 reste verrouillée en position active par le levier de commande 38 (figure 6), mais la première pièce d'actionnement 30 revient automatiquement vers la position inactive sous l'action de rappel du ressort 48. La signalisation du défaut SDE subsiste, tandis que le disjoncteur peut être actionné vers l'état fermé pour assurer la continuité de service.When the actuator 16 receives a tripping signal due to an electrical fault, the two actuating parts 30, 32 of the trip bar 18 are rotated towards the active position, causing the tripping of the circuit breaker via the mechanical trigger connection 29, and the indication of the electrical fault by means of the auxiliary contact 27 of the signaling member 20. The rotational drive of the second piece 32 by the first piece 30 is unidirectional in the direction of pivoting corresponding to the trigger. In the opposite direction to the tripping, the connection between the two parts 30, 32 is completely broken. The second actuating part 32 remains locked in the active position by the control lever 38 (FIG. 6), but the first actuating part 30 automatically returns to the inactive position under the return action of the spring 48. SDE fault remains, while the circuit breaker can be operated to the closed state to ensure continuity of service.

L'utilisateur peut ainsi commander la refermeture du disjoncteur après déclenchement, tout en conservant l'information du défaut survenu.The user can thus order the reclosing of the circuit breaker after tripping, while retaining the information of the fault that has occurred.

Le réglage de la liaison mécanique d'accouplement 36 entre la position accouplée et la position débrayée des deux pièces 30, 32 est parfaitement réversible. Il est ainsi possible de passer de la position accouplée à la position débrayée, puis de revenir à la position accouplée en fonction des applications souhaitées par l'utilisateur.
Il est clair que les éléments mâle et femelle de la liaison mécanique d'accouplement 36 peuvent être inversés sans sortir du cadre de la présente invention.The adjustment of the mechanical connection coupling 36 between the coupled position and the disengaged position of the two parts 30, 32 is perfectly reversible. It is thus possible to move from the coupled position to the disengaged position, then to return to the coupled position according to the applications desired by the user.
It is clear that the male and female elements of the coupling mechanical connection 36 can be reversed without departing from the scope of the present invention.

Claims (8)

  1. Trip device for an electrical circuit breaker, comprising:
    - a rotary trip bar (18) cooperating in the active position with an actuator (16) to transmit a tripping order to the mechanism (12) in the event of an electrical fault,
    - an indication device (20) for indication of the fault after the mechanism (12) has tripped,
    - and return means to return the trip bar (18) to an inactive position enabling the circuit breaker to be reset,
    characterized in that the trip bar (18) is sub-divided into a first actuating part (30) associated to the trip rod (24) of the actuator (16), and a second actuating part (32) operating in conjunction with the indicating device (20), that a mechanical coupling link (36) is arranged between the two actuating parts (30, 32) being adjustable by an user according to his requirements between a coupled position and a disengaged position, and that an operating lever (38) performs locking in the active position of the second actuating part (32) to keep the fault information on the indicating device (20), whereas the first actuating part (30) returns automatically to the inactive position when said mechanical link (36) is in the disengaged position.
  2. Trip device according to claim 1, characterized in that the mechanical coupling link (36) between the two actuating parts (30, 32) of the trip bar (18) is reversible between the coupled position and the disengaged position, and vice-versa.
  3. Trip device according to claim 1 or 2, characterized in that the operating lever (38) is pivotally mounted on a spindle (40) between a first securing position on the second actuating part (32) in the inactive position and a second position performing said locking in the active position.
  4. Trip device according to claim 1, characterized in that a return spring (46) biases the operating lever (38) to said second locking position after the mechanism (12) has tripped.
  5. Trip device according to claim 1, characterized in that the mechanical coupling link (36) comprises a male transmission element (64) designed to operate in conjunction with a female element (66) following a relative movement of the two actuating parts (30, 32) in translation.
  6. Trip device according to claim 5, characterized in that each actuating part (30, 32) of the trip bar (18) is biased to the inactive position by a return spring (48, 50).
  7. Trip device according to claim 1, characterized in that the actuator (16) is formed by an electromechanical relay comprising an operating coil and a mobile core coupled to the tripping rod (24), which extends perpendicularly to the trip bar (18).
  8. Trip device according to claim 1, characterized in that the electrical fault indication device (20) comprises an auxiliary contact (27) operated by means of a transmission lever (68) when the second actuating part (32) is driven to the active position.
EP99410004A 1998-02-09 1999-01-19 Trip device for a circuit breaker with an electrical fault signalisation Expired - Lifetime EP0935272B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9801719A FR2774806B1 (en) 1998-02-09 1998-02-09 TRIGGERING DEVICE FOR A CIRCUIT BREAKER PROVIDED WITH AN ELECTRICAL FAULT SIGNALING
FR9801719 1998-02-09

Publications (2)

Publication Number Publication Date
EP0935272A1 EP0935272A1 (en) 1999-08-11
EP0935272B1 true EP0935272B1 (en) 2006-03-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99410004A Expired - Lifetime EP0935272B1 (en) 1998-02-09 1999-01-19 Trip device for a circuit breaker with an electrical fault signalisation

Country Status (7)

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US (1) US5982258A (en)
EP (1) EP0935272B1 (en)
JP (1) JP4152516B2 (en)
CN (1) CN1088249C (en)
DE (1) DE69930494T2 (en)
ES (1) ES2259229T3 (en)
FR (1) FR2774806B1 (en)

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US6850135B1 (en) * 2003-08-01 2005-02-01 Gaton Corporation Circuit breaker trip unit employing a reset overtravel compensating rotary trip lever
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DE102006030672B4 (en) 2006-07-04 2008-10-16 Moeller Gmbh Electrical circuit breaker
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DE102008046183A1 (en) 2008-09-06 2010-03-11 Moeller Gmbh Receiving device for releasing- and monitoring unit of circuit breaker, has delay mass operatively connected with another delay mass by rod after insertion of releasing- and monitoring unit of circuit breaker in device
CN102064054B (en) * 2009-11-12 2014-02-26 施耐德电器工业公司 Thermal electromagnetic tripping device and buckle mechanism thereof
CN102420079B (en) * 2011-08-12 2014-04-09 江苏新洛凯机电有限公司 Mechanical device for controlling work state of air circuit breaker
US9076622B2 (en) * 2013-04-29 2015-07-07 Eaton Corporation Trip unit with captive trip bar
CN204348653U (en) * 2014-12-01 2015-05-20 浙江正泰电器股份有限公司 Breaker lockout device
CN106783432B (en) * 2017-01-05 2019-02-15 上海磊跃自动化设备有限公司 The quick-tripping device of low-voltage circuit breaker executing agency
KR101869724B1 (en) 2017-01-05 2018-06-21 엘에스산전 주식회사 Magnetic trip device for circuit breaker
CN106783433B (en) * 2017-01-05 2019-02-15 上海磊跃自动化设备有限公司 The executing agency of low-voltage circuit breaker
KR102299858B1 (en) 2017-03-15 2021-09-08 엘에스일렉트릭 (주) Magnetic trip mechanism for circuit breaker
CN110940913B (en) * 2018-09-21 2022-05-27 施耐德电器工业公司 Short-circuit fault indication and mechanical test mechanism for circuit breaker

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US5886641A (en) * 1998-04-09 1999-03-23 Eaton Corporation Trip indicator and signalling switch assembly

Also Published As

Publication number Publication date
CN1226074A (en) 1999-08-18
CN1088249C (en) 2002-07-24
DE69930494T2 (en) 2006-11-02
FR2774806A1 (en) 1999-08-13
US5982258A (en) 1999-11-09
EP0935272A1 (en) 1999-08-11
ES2259229T3 (en) 2006-09-16
DE69930494D1 (en) 2006-05-11
JP2000208006A (en) 2000-07-28
FR2774806B1 (en) 2000-03-17
JP4152516B2 (en) 2008-09-17

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