EP0291374B1 - Trip bar for a multipole breaker block associated with an auxiliary trip block - Google Patents

Trip bar for a multipole breaker block associated with an auxiliary trip block Download PDF

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Publication number
EP0291374B1
EP0291374B1 EP19880401007 EP88401007A EP0291374B1 EP 0291374 B1 EP0291374 B1 EP 0291374B1 EP 19880401007 EP19880401007 EP 19880401007 EP 88401007 A EP88401007 A EP 88401007A EP 0291374 B1 EP0291374 B1 EP 0291374B1
Authority
EP
European Patent Office
Prior art keywords
trip
pole
circuit breaker
lever
unit
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
EP19880401007
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German (de)
French (fr)
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EP0291374A1 (en
Inventor
Yves Belin
Patrick De Robertis
Patrick Guillon
Michel Lazareth
Jacques Vallot
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Merlin Gerin SA
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Merlin Gerin SA
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Publication date
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Publication of EP0291374A1 publication Critical patent/EP0291374A1/en
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Publication of EP0291374B1 publication Critical patent/EP0291374B1/en
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Classifications

    • 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
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together
    • H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip

Definitions

  • Such a circuit breaker is for example described in FR-A-2,500,957.
  • the transmission at the second mechanical link of the differential trip order from the relay to the trip bar of the circuit breaker block is effected by means of an auxiliary coupling part. which must be installed when associating the differential trip unit with the circuit breaker unit.
  • Document DE-A-3.505.004 relates to a circuit breaker block having a modular trip bar used for multipole trip.
  • Each pole has a trigger lever having a housing in one of the side faces, and a finger on its opposite face. The finger is engaged in the housing of the trigger lever of the neighboring pole during the engagement of two poles.
  • the object of the invention consists in facilitating the adaptation by the installer of an auxiliary trip unit to a circuit breaker unit, in order to constitute a modular multipole circuit breaker.
  • the circuit breaker according to the invention is characterized in that the housing of the trigger lever of each pole is extended by a shoulder projecting from the lateral face of said lever, and that the second finger is integrated into the second unidirectional mechanical trigger link, and cooperates with the shoulder in a predetermined direction of rotation of the bar, without entering the housing of the pole trigger lever adjacent to the trigger block.
  • the shoulder of the trigger lever of each pole extends parallel to the respective fingers of the first and second mechanical connections.
  • an auxiliary trip unit 12 of the differential or emission type is attached and coupled to a two-pole circuit breaker unit 10 to constitute a differential circuit breaker or a remote-controlled circuit breaker.
  • the circuit breaker block 10 is formed by the juxtaposition of two standard 14.16 poles each comprising a pair of connection terminals, a pair of separable 18.20 contacts (FIGS. 5 and 6) and a first actuation mechanism 22 controlled either manually by a control lever 24 with two stable positions for opening and closing the circuit breaker, or automatically by a main thermomagnetic trip device (not shown) actuating a common trip bar 26 actuating a common trip bar 26 in the event of an overload or short-circuit.
  • the levers 24 of the two poles 14, 16 are mechanically linked together by a common bar 28.
  • the mechanism 22 ( Figures 5 and 6) of each pole 14,16 is of the type described in European patent application No.
  • 86 402 267 and comprises a trigger lever 30 pivotally mounted on an axis 32 carried by a plate 34 capable of rotating around a pivot 36 when the circuit breaker opens and closes.
  • a transmission link 38 is interposed between the lever 24 and an attachment (not shown) of the plate 34, said attachment being unlocked by the trigger lever 30 during a fault detected by the magnetothermal trigger.
  • This tripping order can be transmitted to the pole next to the circuit breaker block 10 by a transverse finger 44 of a first mechanical bidirectional tripping link 47 (FIGS. 5 and 9), formed by an auxiliary needle connecting the extensions of the tripping levers 30 of the two poles.
  • the opposite faces of the insulating housing 40 of each pole include a pair of aligned holes 42, intended to ensure the emission and reception of trip orders between the poles of the circuit breaker block 10 and the trip block 12.
  • the emission at the level a pole is always exerted towards the left, while the reception comes from the right (figure 9).
  • the circuit breaker block 10 could of course include a juxtaposition of three protected poles, or of a phase pole with a neutral pole.
  • the auxiliary trip unit 12 contains an electromagnetic relay 45 associated with a second control mechanism 46 (see FIGS. 1 to 4).
  • Relay 45 is supplied by a differential transformer or by a remote control, so as to issue a trip command to the neighboring circuit breaker block 10.
  • the mechanism 46 of the trip unit 12 is connected to the circuit breaker unit 10 by a second mechanical link 48 of tripping, shown in detail in the upper part of FIGS. 1 to 4 and by another mechanical connection 50 (see lower part) for resetting the relay 45 of the tripping block 12.
  • the second mechanical link 48 transmits the triggering order of the relay 45 to the trigger bar 26 by engagement of a finger 52 of the mechanism 46 in the orifice 42 located in the right face of the pole 16.
  • the mechanical link 50 of the mechanism 46 includes a reset handle 54 fitted with a drive lug 56 cooperating with the handle 24 for controlling the pole 16.
  • the drive 54 for resetting the trip unit 12 by the handle 24 of the circuit breaker unit 10 is unidirectional in the direction of closing of the actuating mechanism 22. There is no positive connection between the handles 54,24 in the opposite direction of opening of the circuit breaker.
  • the housing 59 of the trip unit 12 for this purpose comprises positioning pins 60 capable of engaging in guide holes 61 formed in the housing 40 of the pole 16 ( Figure 7). the pins 60 and the trigger finger 52 of the trigger block 12 protrude from the internal lateral face of the housing 59 extending parallel to each other, the finger 52 having a length less than that of the pins 60.
  • the finger 52 of the second mechanical connection 48 passes through the orifice 42 on the right of the pole 16, and cooperates either with a shoulder 62 or with a ramp 64 of the trigger lever 30 along the armed or triggered state of the mechanisms 22,46 for controlling the blocks 10,12.
  • the shoulder 62 projects from the lever 30 and extends parallel to the trigger finger 52, being situated between the ramp 64 and a blind housing 66 of the lever 30.
  • the mechanical link 50 could of course be bidirectional by permanent assembly by means of the lug 56 of the two levers 24,54 for controlling the adjoining blocks 10,12.
  • the mechanism 46 of the trip unit 12 would be modified, such that the reset movement of the relay 45 would be derived from the opening movement of the circuit breaker.
  • the link 50 could also be completely eliminated, and the separate resetting of the auxiliary trip unit 12 would in this case be carried out manually by actuation of the handle 54 before the closing of the circuit breaker unit 10.
  • the forced triggering of the block circuit breaker 10 by action of the finger 52 on the ramp 64 remains in the case of an association by the customer of a tripped block 12 disarmed with a circuit breaker block 10 armed.
  • FIG. 9 diagrammatically shows the transmission of the tripping movement between the tripping block 12 and the poles 14, 16 of the circuit breaker block 10.
  • the tripping bar 26 is modular and is constituted by the transverse interlocking of the fingers 52, 44 with the levers tripping 30 of the poles 16,14.
  • the circuit breaker trip bar 26 is used for multipole tripping, that is to say between the two poles 14, 16, and for tripping by the auxiliary block 12.
  • the splitting of the bar 26 makes it possible to obtain different movements in the two blocks 10.12.
  • the transverse connection finger 44 is set up in the factory between the levers 30 of the two poles 14, 16 and completely penetrates into the blind housing 66 formed in the trigger lever 30 of the pole 14 , and remains a prisoner there.
  • the other end of the finger 44 is fixed in a hole of the same diameter, formed in the lever 30 belonging to the pole 16.
  • This bidirectional link 47 authorizes the transmission of the tripping movement in both directions, that is to say of the pole 14 towards pole 16, and vice versa.
  • the second link 48 is unidirectional, because the finger 52 for triggering the mechanism 46 does not enter the housing 66 of the lever 30 belonging to the pole 16, but cooperates with the shoulder 62 in a single direction of rotation of the bar 26.
  • the transmission of the triggering movement takes place only to the left, that is to say from the trigger block 12 to the pole 16, but not in the opposite direction.
  • the tripping of the circuit breaker block 10 following an overload or a short circuit will not cause the tripping of the auxiliary block 12.
  • the fingers 44, 52 of the first and second links 47, 48 are aligned in a direction parallel to the pivot axis 32 of the trigger lever 30 of each pole 14.16.
  • FIG. 10 does not provide for forced triggering in the event of discordance of the levers 24.54, but an automatic return of the lever 54 of the trigger block 12 by means of a ratchet 70.
  • the latter is advantageously integrated in the lug 56 of the handle 54.

Description

L'invention est relative à un disjoncteur modulaire à bloc déclencheur auxiliaire, notamment différentiel ou à émission, susceptible d'être accolé et accouplé à un bloc disjoncteur multipolaire :

  • ledit bloc disjoncteur comprenant une pluralité de pôles juxtaposés, chaque pôle dudit bloc disjoncteur comportant des contacts séparables et un premier mécanisme d'actionnement desdits contacts, piloté soit manuellement par une première manette de commande, soit automatiquement par un déclencheur principal coopérant avec un levier de déclenchement en cas de surcharge ou de court-circuit, les leviers de déclenchement respectifs de deux pôles juxtaposés étant interconnectés par un premier doigt transversal d'une première liaison mécanique bidirectionnelle de déclenchement pour former une barre de déclenchement modulaire autorisant le déclenchement multipolaire par transmission du mouvement de déclenchement de l'un des pôles vers l'autre pôle, et vice-versa, le levier de déclenchement du premier mécanisme de chaque pôle, comportant un logement dans une face latérale du levier, et ledit premier doigt de la première liaison mécanique étant ménagé sur la face latérale opposée, et engagé en position accolée des blocs dans le logement du levier de déclenchement du pôle voisin,
  • ledit bloc déclencheur auxiliaire renfermant un relais électromagnétique associé à un deuxième mécanisme de commande comprenant une deuxième manette de réarmement du bloc déclencheur et une deuxième liaison mécanique unidirectionnelle de déclenchement susceptible de transmettre l'ordre de déclenchement du relais à la barre de déclenchement du bloc disjoncteur, la transmission de l'ordre de déclenchement en provenance du relais s'effectuant par introduction d'un deuxième doigt dans un orifice ménagé dans le boîtier isolant du pôle adjacent au bloc déclencheur auxiliaire.
The invention relates to a modular circuit breaker with auxiliary trip block, in particular differential or emission, capable of being coupled and coupled to a multipole circuit breaker block:
  • said circuit breaker block comprising a plurality of juxtaposed poles, each pole of said circuit breaker block comprising separable contacts and a first mechanism for actuating said contacts, controlled either manually by a first control lever, or automatically by a main trip device cooperating with a lever tripping in the event of an overload or short-circuit, the respective tripping levers of two juxtaposed poles being interconnected by a first transverse finger of a first bidirectional mechanical tripping link to form a modular tripping bar allowing multipolar tripping by transmission of the trigger movement from one of the poles to the other pole, and vice versa, the trigger lever of the first mechanism of each pole, comprising a housing in a lateral face of the lever, and said first finger of the first mechanical connection being spared on college e opposite side, and engaged in the adjoining position of the blocks in the housing of the trigger lever of the neighboring pole,
  • said auxiliary trip unit containing an electromagnetic relay associated with a second control mechanism comprising a second reset lever for the trip unit and a second unidirectional mechanical trip link capable of transmitting the trip order of the relay to the trip bar of the circuit breaker unit , the transmission of the triggering order coming from the relay being effected by the introduction of a second finger into an orifice formed in the insulating housing of the pole adjacent to the auxiliary trip unit.

Un tel disjoncteur est par exemple décrit dans FR-A-2 500 957. Selon cet état de la technique, la transmission au niveau de la deuxième liaison mécanique de l'ordre de déclenchement différentiel en provenance du relais vers la barre de déclenchement du bloc disjoncteur s'effectue par l'intermédiaire d'une pièce auxiliaire d'accouplement qui doit être obligatoirement mis en place lors de l'association du bloc déclencheur différentiel au bloc disjoncteur.Such a circuit breaker is for example described in FR-A-2,500,957. According to this state of the art, the transmission at the second mechanical link of the differential trip order from the relay to the trip bar of the circuit breaker block is effected by means of an auxiliary coupling part. which must be installed when associating the differential trip unit with the circuit breaker unit.

Le document DE-A-3.505.004 concerne un bloc disjoncteur ayant une barre de déclenchement modulaire servant au déclenchement multipolaire. Chaque pôle comporte un levier de déclenchement ayant un logement dans l'une des faces latérales, et un doigt à sa face opposée. Le doigt est engagé dans le logement du levier de déclenchement du pôle voisin lors de l'engagement de deux pôles.Document DE-A-3.505.004 relates to a circuit breaker block having a modular trip bar used for multipole trip. Each pole has a trigger lever having a housing in one of the side faces, and a finger on its opposite face. The finger is engaged in the housing of the trigger lever of the neighboring pole during the engagement of two poles.

L'objet de l'invention consiste à faciliter l'adaptation par l'installateur d'un bloc déclencheur auxiliaire à un bloc disjoncteur, pour constituer un disjoncteur multipolaire modulaire.The object of the invention consists in facilitating the adaptation by the installer of an auxiliary trip unit to a circuit breaker unit, in order to constitute a modular multipole circuit breaker.

Le disjoncteur selon l'invention est caractérisé en ce que le logement du levier de déclenchement de chaque pôle est prolongé par un épaulement faisant saillie de la face latérale dudit levier, et que le deuxième doigt est intégré à la deuxième liaison mécanique unidirectionnelle de déclenchement, et coopère avec l'épaulement dans un sens de rotation prédéterminé de la barre, sans pénétrer dans le logement du levier de déclenchement du pôle adjacent au bloc déclencheur.The circuit breaker according to the invention is characterized in that the housing of the trigger lever of each pole is extended by a shoulder projecting from the lateral face of said lever, and that the second finger is integrated into the second unidirectional mechanical trigger link, and cooperates with the shoulder in a predetermined direction of rotation of the bar, without entering the housing of the pole trigger lever adjacent to the trigger block.

L'introduction du doigt de déclenchement du bloc déclencheur dans le pôle voisin, et l'adaptation dudit doigt à la barre de déclenchement s'effectuent directement lors de l'accolement des blocs, sans pièce intermédiaire de liaison.The introduction of the trigger finger of the trigger block in the neighboring pole, and the adaptation of said finger to the trigger bar is carried out directly when the blocks are joined, without intermediate connecting piece.

L'épaulement du levier de déclenchement de chaque pôle s'étend parallèlement aux doigts respectifs des première et deuxième liaisons mécaniques.The shoulder of the trigger lever of each pole extends parallel to the respective fingers of the first and second mechanical connections.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de deux modes de réalisations donnés à titre d'exemples non limitatifs et représentés aux dessins annexés dans lesquels:

  • la figure 1 montre une vue schématique en élévation du disjoncteur, lors de l'assemblage d'un bloc déclencheur déclenché à un bloc disjoncteur ouvert, la partie agrandie supérieure représentant la liaison mécanique de déclenchement, et la partie agrandie inférieure montrant la liaison mécanique de réarmement.
  • la figure 2 est une vue identique à celle de la figure 1, le bloc déclencheur étant armé, et le bloc disjoncteur ouvert;
  • la figure 3 est une vue identique à celle de la figure 1, le bloc déclencheur étant armé, et le bloc disjoncteur fermé;
  • la figure 4 est une vue identique à celle de la figure 1, le bloc déclencheur étant déclenché, et le bloc disjoncteur fermé;
  • la figure 5 représente une vue partielle du premier mécanisme d'actionnement des contacts d'un pôle du bloc disjoncteur, le mécanisme se trouvant en position de fermeture;
  • la figure 6 est une vue identique à celle de la figure 5, en position d'ouverture du pôle;
  • la figure 7 est une vue partielle en coupe, à échelle agrandie de la zone d'accouplement des deux blocs selon la figure 4;
  • la figure 8 est une vue partielle de profil de la figure 7, au niveau de la deuxième liaison mécanique unidirectionnelle de déclenchement;
  • la figure 9 montre une vue schématique de la barre de déclenchement en position accolée et accouplée des blocs;
  • la figure 10 représente une vue partielle schématique d'une variante de réalisation;
Other advantages and characteristics will emerge more clearly from the description which follows of two embodiments given by way of nonlimiting examples and represented in the appended drawings in which:
  • Figure 1 shows a schematic elevation view of the circuit breaker, when assembling a tripped trip unit to an open circuit breaker unit, the upper enlarged part representing the tripping mechanical connection, and the lower enlarged part showing the mechanical connection of rearmament.
  • Figure 2 is a view identical to that of Figure 1, the trip unit being armed, and the circuit breaker unit open;
  • Figure 3 is a view identical to that of Figure 1, the trip unit being armed, and the circuit breaker unit closed;
  • Figure 4 is a view identical to that of Figure 1, the trip unit being tripped, and the circuit breaker unit closed;
  • FIG. 5 represents a partial view of the first mechanism for actuating the contacts of a pole of the circuit breaker block, the mechanism being in the closed position;
  • Figure 6 is a view identical to that of Figure 5, in the pole open position;
  • Figure 7 is a partial sectional view, on an enlarged scale of the coupling zone of the two blocks according to Figure 4;
  • Figure 8 is a partial profile view of Figure 7, at the second unidirectional mechanical trigger link;
  • FIG. 9 shows a schematic view of the trigger bar in the coupled and coupled position of the blocks;
  • Figure 10 shows a schematic partial view of an alternative embodiment;

Sur les figures, un bloc déclencheur 12 auxiliaire du type différentiel ou à émission est accolé et accouplé à un bloc disjoncteur 10 bipolaire pour constituer un disjoncteur differentiel ou un disjoncteur télécommandé.In the figures, an auxiliary trip unit 12 of the differential or emission type is attached and coupled to a two-pole circuit breaker unit 10 to constitute a differential circuit breaker or a remote-controlled circuit breaker.

Le bloc disjoncteur 10 est formé par la juxtaposition de deux pôles 14,16 standards comportant chacun une paire de bornes de raccordement, une paire de contacts 18,20 séparables (figure 5 et 6) et un premier mécanisme 22 d'actionnement piloté soit manuellement par une manette 24 de commande à deux positions stables d'ouverture et de fermeture du disjoncteur, soit automatiquement par un déclencheur principal magnétothermique (non représenté) actionnant une barre de déclenchement 26 commune actionnant une barre de déclenchement 26 commune en cas de surcharge ou de court-circuit. Les manettes 24 des deux pôles 14,16 sont reliées mécaniquement entre elles par une barrette 28 commune. Le mécanisme 22 (figures 5 et 6) de chaque pôle 14,16 est du type décrit dans la demande de brevet européen n° 86 402 267, et comprend un levier de déclenchement 30 monté à pivotement sur un axe 32 porté par une platine 34 susceptible de tourner autour d'un pivot 36 lors de l'ouverture et de la fermeture du disjoncteur. Une biellette 38 de transmission est intercalée entre la manette 24 et un accrochage (non représenté) de la platine 34, ledit accrochage étant déverrouillé par le levier de déclenchement 30 lors d'un défaut détecté par le déclenchement magnétothermique. Cet ordre de déclenchement peut étre transmis au pôle voisin du bloc disjoncteur 10 par un doigt 44 transversal d'une première liaison mécanique 47 bidirectionnelle de déclenchement (figures 5 et 9), formée par une aiguille auxiliaire reliant les extensions des leviers de déclenchement 30 des deux pôles. Les faces opposées du boîtier 40 isolant de chaque pôle comportent une paire d'orifices 42 alignés, destinés à assurer l'émission et la réception des ordres de déclenchement entre les pôles du bloc disjoncteur 10 et le bloc déclencheur 12. L'émission au niveau d'un pôle s'exerce toujours vers la gauche, tandis que la réception provient de la droite (figure 9).The circuit breaker block 10 is formed by the juxtaposition of two standard 14.16 poles each comprising a pair of connection terminals, a pair of separable 18.20 contacts (FIGS. 5 and 6) and a first actuation mechanism 22 controlled either manually by a control lever 24 with two stable positions for opening and closing the circuit breaker, or automatically by a main thermomagnetic trip device (not shown) actuating a common trip bar 26 actuating a common trip bar 26 in the event of an overload or short-circuit. The levers 24 of the two poles 14, 16 are mechanically linked together by a common bar 28. The mechanism 22 (Figures 5 and 6) of each pole 14,16 is of the type described in European patent application No. 86 402 267, and comprises a trigger lever 30 pivotally mounted on an axis 32 carried by a plate 34 capable of rotating around a pivot 36 when the circuit breaker opens and closes. A transmission link 38 is interposed between the lever 24 and an attachment (not shown) of the plate 34, said attachment being unlocked by the trigger lever 30 during a fault detected by the magnetothermal trigger. This tripping order can be transmitted to the pole next to the circuit breaker block 10 by a transverse finger 44 of a first mechanical bidirectional tripping link 47 (FIGS. 5 and 9), formed by an auxiliary needle connecting the extensions of the tripping levers 30 of the two poles. The opposite faces of the insulating housing 40 of each pole include a pair of aligned holes 42, intended to ensure the emission and reception of trip orders between the poles of the circuit breaker block 10 and the trip block 12. The emission at the level a pole is always exerted towards the left, while the reception comes from the right (figure 9).

Le bloc disjoncteur 10 pourrait bien entendu comporter une juxtaposition de trois pôles protégés, ou d'un pôle de phase avec un pôle de neutre.The circuit breaker block 10 could of course include a juxtaposition of three protected poles, or of a phase pole with a neutral pole.

Le bloc déclencheur 12 auxiliaire renferme un relais électromagnétique 45 associé à un deuxième mécanisme de commande 46 (voir figures 1 à 4). Le relais 45 est alimenté par un transformateur différentiel ou par une commande à distance, de manière à émettre un ordre de déclenchement au bloc disjoncteur 10 voisin. Le mécanisme 46 du bloc déclencheur 12 est relié au bloc disjoncteur 10 par une deuxième liaison mécanique 48 de déclenchement, montrée en détail à la partie supérieure des figures 1 à 4 et par une autre liaison mécanique 50 (voir partie inférieure) de réarmement du relais 45 du bloc déclencheur 12.The auxiliary trip unit 12 contains an electromagnetic relay 45 associated with a second control mechanism 46 (see FIGS. 1 to 4). Relay 45 is supplied by a differential transformer or by a remote control, so as to issue a trip command to the neighboring circuit breaker block 10. The mechanism 46 of the trip unit 12 is connected to the circuit breaker unit 10 by a second mechanical link 48 of tripping, shown in detail in the upper part of FIGS. 1 to 4 and by another mechanical connection 50 (see lower part) for resetting the relay 45 of the tripping block 12.

La deuxième liaison mécanique 48 transmet l'ordre de déclenchement du relais 45 à la barre de déclenchement 26 par engagement d'un doigt 52 du mécanisme 46 dans l'orifice 42 situé dans la face de droite du pôle 16. La liaison mécanique 50 du mécanisme 46 comporte une manette 54 de réarmement équipée d'un ergot 56 d'entraînement coopérant avec la manette 24 de commande du pôle 16. L'entraînement de la manette 54 de réarmement du bloc déclencheur 12 par la manette 24 du bloc disjoncteur 10 est unidirectionnel dans le sens de la fermeture du mécanisme 22 d'actionnement. Il n' y a aucune liaison positive entre les manettes 54,24 dans le sens opposé d'ouverture du disjoncteur.The second mechanical link 48 transmits the triggering order of the relay 45 to the trigger bar 26 by engagement of a finger 52 of the mechanism 46 in the orifice 42 located in the right face of the pole 16. The mechanical link 50 of the mechanism 46 includes a reset handle 54 fitted with a drive lug 56 cooperating with the handle 24 for controlling the pole 16. The drive 54 for resetting the trip unit 12 by the handle 24 of the circuit breaker unit 10 is unidirectional in the direction of closing of the actuating mechanism 22. There is no positive connection between the handles 54,24 in the opposite direction of opening of the circuit breaker.

Le mouvement de réarmement du mécanisme 46 après déclenchement par le bloc déclencheur 12 auxiliaire s'opère en deux phases distinctes:

  • durant la première phase de transmission de l'ordre de déclenchement du relais 45 par le doigt 52 à la barre 26, le disjoncteur s'ouvre et un levier d'armement (non représenté) du mécanisme 46 repousse automatiquement le relais 45 vers la position réarmée. La manette 54 se trouve par contre en position déclenchée, la liaison mécanique 50 étant inactive.
  • durant la deuxième phase, la fermeture manuelle de la manette 24 du bloc disjoncteur 10 fait intervenir la liaison 50 qui entraîne positivement la manette 54 vers la position réarmée, et libère le relais 45 de la force de rappel du levier d'armement du mécanisme 46. Le bloc déclencheur 12 auxiliaire est alors prêt à envoyer un nouveau ordre de déclenchement au bloc disjoncteur 10.
The reset movement of the mechanism 46 after triggering by the auxiliary trigger block 12 takes place in two distinct phases:
  • during the first phase of transmission of the triggering order of the relay 45 by the finger 52 to the bar 26, the circuit breaker opens and an arming lever (not shown) of the mechanism 46 automatically pushes the relay 45 towards the position rearmed. The lever 54 is on the other hand in the triggered position, the mechanical connection 50 being inactive.
  • during the second phase, manual closing of the handle 24 of the circuit breaker block 10 involves the link 50 which positively drives the handle 54 to the reset position, and releases the relay 45 from the restoring force of the arming lever of the mechanism 46 The auxiliary trip unit 12 is then ready to send a new trip order to the circuit breaker unit 10.

L'accouplement latéral des deux liaisons mécaniques 48,50 du bloc déclencheur 12 auxiliaire sur le bloc disjoncteur 10 doit s'effectuer sans erreur. Le boîtier 59 du bloc déclencheur 12 comprend à cet effet des pions 60 de positionnement susceptibles de s'engager dans des trous 61 de guidage ménagés dans le boîtier 40 du pôle 16 (figure 7). les pions 60 et le doigt 52 de déclenchement du bloc déclencheur 12 font saillie de la face latérale interne du boîtier 59 en s'étendant parallèlement l'un à l'autre, le doigt 52 ayant une longueur inférieure à celle des pions 60. Lors de l'accolement des deux blocs 10,12 le doigt 52 de la deuxième liaison mécanique 48 traverse l'orifice 42 de droite du pôle 16, et coopère soit avec un épaulement 62, soit avec une rampe 64 du levier de déclenchement 30 selon l'état armé ou déclenché des mécanismes 22,46 de commande des blocs 10,12. L'épaulement 62 fait saillie du levier 30 et s'étend parallèlement au doigt 52 de déclenchement en étant situé entre la rampe 64 et un logement 66 borgne du levier 30.The lateral coupling of the two mechanical connections 48.50 of the auxiliary trip unit 12 on the circuit breaker unit 10 must proceed without error. The housing 59 of the trip unit 12 for this purpose comprises positioning pins 60 capable of engaging in guide holes 61 formed in the housing 40 of the pole 16 (Figure 7). the pins 60 and the trigger finger 52 of the trigger block 12 protrude from the internal lateral face of the housing 59 extending parallel to each other, the finger 52 having a length less than that of the pins 60. During of the joining of the two blocks 10,12 the finger 52 of the second mechanical connection 48 passes through the orifice 42 on the right of the pole 16, and cooperates either with a shoulder 62 or with a ramp 64 of the trigger lever 30 along the armed or triggered state of the mechanisms 22,46 for controlling the blocks 10,12. The shoulder 62 projects from the lever 30 and extends parallel to the trigger finger 52, being situated between the ramp 64 and a blind housing 66 of the lever 30.

Différents cas de montage peuvent se présenter lors de l'association des blocs 10,12 par le client :

  • lorsque le bloc disjoncteur 10 est ouvert (manette 24 sur 0 aux figures 1 et 2), le levier de déclenchement 30 de chaque pôle 14,16 se trouve en position relevée (figure 6)correspondant à la position déclenchée de la barre de déclenchement 26. La pénétration du doigt 52 de déclenchement dans le pôle 16, et l'accouplement des manettes 54,24 par l'ergot 56 de la liaison mécanique 50 s'effectuent sans problèmes, indépendemment de la position déclenchée (0 sur figure 1) ou armée (I sur figure 2) de la manette 54 du bloc déclencheur 12 auxiliaire.
  • lorsque le bloc disjoncteur 10 est fermé (manette 24 sur I aux figures 3 et 4), le levier de déclenchement 30 de chaque pôle 14,16 est en position abaissée (figure 5) correspondant à la position armée de la barre de déclenchement 26. Si la manette 54 du bloc déclencheur 12 se trouve elle-même en position armée (I sur figure 3), l'accolement des blocs 10,12 est rendu possible grâce à la pénétration du doigt 52 de déclenchement, et de l'accouplement des manettes 54,24. On remarque que la barrette 28 commune des manettes 24 du bloc disjoncteur 10 est placé en dessous de la manette 56 du bloc déclencheur 12 auxiliaire. Cette disposition est indispensable pour constituer la liaison mécanique 50 de réarmement. Si la manette 54 est positionnée dans la position déclenchée (0 sur figure 4), les manettes 54,24 se trouvent initialement en discordance. Le doigt 52 de déclenchement du bloc déclencheur 12 vient buter contre la rampe 64 (figures 7 et 8), et fait pivoter le levier 30 et la barre de déclenchement 26 vers la position déclenchée entraînant l'ouverture du bloc disjoncteur 10. Ce mouvement pivotant de déclenchement forcé résulte de la transformation du mouvement d'accolement par l'action du doigt 52 sur la rampe 64. Le déclenchement forcé intervient avant l'accouplement des manettes 24,54 grâce à un jeu J (figure 7) prédéterminé qui subsiste entre ces dernières lorsque le bout du doigt 52 vient en contact avec la rampe 64. Après déclenchement forcé, on se retrouve dans le cas du montage de la figure 1, et l'association des blocs 10,12 est possible. La manette 24 du bloc disjoncteur 10 est placée en dessous de la manette 54 du bloc déclencheur 12 pour établir la liaison mécanique 50. la fermeture des contacts du bloc disjoncteur 10 par déplacement manuel de la manette 24 vers la position I (figure 5) entraîne alors la manette 54 vers la position armée du bloc déclencheur 12 auxiliaire.
Different mounting cases can arise during the association of blocks 10,12 by the customer:
  • when the circuit breaker block 10 is open (handle 24 on 0 in Figures 1 and 2), the trip lever 30 of each pole 14,16 is in the raised position (Figure 6) corresponding to the triggered position of the trip bar 26 The penetration of the trigger finger 52 into the pole 16, and the coupling of the levers 54, 24 by the lug 56 of the mechanical connection 50 takes place without problems, independently of the triggered position (0 in FIG. 1) or army (I in FIG. 2) of the lever 54 of the auxiliary trip unit 12.
  • when the circuit breaker block 10 is closed (handle 24 on I in FIGS. 3 and 4), the tripping lever 30 of each pole 14, 16 is in the lowered position (FIG. 5) corresponding to the armed position of the tripping bar 26. If the handle 54 of the trigger block 12 is itself in the armed position (I in FIG. 3), the joining of the blocks 10, 12 is made possible by the penetration of the trigger finger 52, and the coupling of the shifters 54.24. We notice that the bar 28 common of the handles 24 of the circuit breaker block 10 is placed below the handle 56 of the auxiliary trip unit 12. This provision is essential to constitute the mechanical connection 50 for rearming. If the handle 54 is positioned in the triggered position (0 in FIG. 4), the handles 54, 24 are initially in discrepancy. The trigger 52 trigger finger 12 abuts against the ramp 64 (Figures 7 and 8), and rotates the lever 30 and the trigger bar 26 to the tripped position causing the opening of the circuit breaker block 10. This pivoting movement forced triggering results from the transformation of the joining movement by the action of finger 52 on the ramp 64. The forced triggering occurs before the coupling of the levers 24.54 thanks to a predetermined clearance J (FIG. 7) which remains between the latter when the tip of the finger 52 comes into contact with the ramp 64. After forced triggering, we find ourselves in the case of the assembly of FIG. 1, and the association of the blocks 10, 12 is possible. The handle 24 of the circuit breaker unit 10 is placed below the handle 54 of the trip unit 12 to establish the mechanical connection 50. the closing of the contacts of the circuit breaker unit 10 by manual movement of the handle 24 towards position I (FIG. 5) results in then the lever 54 towards the armed position of the auxiliary trip unit 12.

La liaison mécanique 50 pourrait bien entendu être bidirectionnelle par réunion permanente au moyen de l'ergot 56 des deux manettes 24,54 de commande des blocs 10,12 accolés. Le mécanisme 46 du bloc déclencheur 12 serait modifié, tel que le mouvement de réarmement du relais 45 serait dérivé du mouvement d'ouverture du disjoncteur.The mechanical link 50 could of course be bidirectional by permanent assembly by means of the lug 56 of the two levers 24,54 for controlling the adjoining blocks 10,12. The mechanism 46 of the trip unit 12 would be modified, such that the reset movement of the relay 45 would be derived from the opening movement of the circuit breaker.

La liaison 50 pourrait d'autre part être totalement supprimée, et le réarmement séparé du bloc déclencheur 12 auxiliaire serait dans ce cas opéré manuellement par actionnement de la manette 54 avant la fermeture du bloc disjoncteur 10.The link 50 could also be completely eliminated, and the separate resetting of the auxiliary trip unit 12 would in this case be carried out manually by actuation of the handle 54 before the closing of the circuit breaker unit 10.

Dans ces deux variantes, le déclenchement forcé du bloc disjoncteur 10 par action du doigt 52 sur la rampe 64 subsiste dans le cas d'une association par le client d'un bloc déclencheur 12 désarmé à un bloc disjoncteur 10 armé.In these two variants, the forced triggering of the block circuit breaker 10 by action of the finger 52 on the ramp 64 remains in the case of an association by the customer of a tripped block 12 disarmed with a circuit breaker block 10 armed.

La figure 9 montre schématiquement la transmission du mouvement de déclenchement entre le bloc déclencheur 12 et les pôles 14,16 du bloc disjoncteur 10. La barre de déclenchement 26 est modulaire et est constituée par l'emboîtement transversal des doigts 52,44 avec les leviers de déclenchements 30 des pôles 16,14. La barre 26 de déclenchement du disjoncteur sert au déclenchement multipolaire, c'est à dire entre les deux pôles 14,16, et au déclenchement par le bloc auxiliaire 12. Le fractionnement de la barre 26 permet d'obtenir des mouvements différents dans les deux blocs 10,12. Dans le cas de la première liaison 47 multipolaire, le doigt 44 transversal de liaison est mis en place en usine entre les leviers 30 des deux pôles 14,16 et pénètre complètement dans le logement 66 borgne ménagé dans le levier de déclenchement 30 du pôle 14, et y reste prisonnier. L'autre extrémité du doigt 44 est fixée dans un trou de même diamètre, ménagé dans le levier 30 appartenant au pôle 16. Cette liaison 47 bidirectionnelle autorise la transmission du mouvement de déclenchement dans les deux sens, c'est à dire du pôle 14 vers le pôle 16, et vice-versa. Au niveau de l'accouplement avec le bloc de déclenchement auxiliaire 12, la deuxième liaison 48 est unidirectionnelle, car le doigt 52 de déclenchement du mécanisme 46 ne pénètre pas dans le logement 66 du levier 30 appartenant au pôle 16, mais coopère avec l'épaulement 62 dans un seul sens de rotation de la barre 26. La transmission du mouvement de déclenchement s'effectue uniquement vers la gauche, c'est à dire du bloc déclencheur 12 vers le pôle 16, mais pas dans le sens inverse. Le déclenchement du bloc disjoncteur 10 à la suite d'une surcharge ou d'un court-circuit ne provoquera pas le déclenchement du bloc auxiliaire 12.FIG. 9 diagrammatically shows the transmission of the tripping movement between the tripping block 12 and the poles 14, 16 of the circuit breaker block 10. The tripping bar 26 is modular and is constituted by the transverse interlocking of the fingers 52, 44 with the levers tripping 30 of the poles 16,14. The circuit breaker trip bar 26 is used for multipole tripping, that is to say between the two poles 14, 16, and for tripping by the auxiliary block 12. The splitting of the bar 26 makes it possible to obtain different movements in the two blocks 10.12. In the case of the first multipolar link 47, the transverse connection finger 44 is set up in the factory between the levers 30 of the two poles 14, 16 and completely penetrates into the blind housing 66 formed in the trigger lever 30 of the pole 14 , and remains a prisoner there. The other end of the finger 44 is fixed in a hole of the same diameter, formed in the lever 30 belonging to the pole 16. This bidirectional link 47 authorizes the transmission of the tripping movement in both directions, that is to say of the pole 14 towards pole 16, and vice versa. At the coupling with the auxiliary trigger block 12, the second link 48 is unidirectional, because the finger 52 for triggering the mechanism 46 does not enter the housing 66 of the lever 30 belonging to the pole 16, but cooperates with the shoulder 62 in a single direction of rotation of the bar 26. The transmission of the triggering movement takes place only to the left, that is to say from the trigger block 12 to the pole 16, but not in the opposite direction. The tripping of the circuit breaker block 10 following an overload or a short circuit will not cause the tripping of the auxiliary block 12.

Les doigts 44,52 des première et deuxième liaison 47,48 sont alignés selon une direction parallèle à l'axe de pivotement 32 du levier de déclenchement 30 de chaque pôle 14,16.The fingers 44, 52 of the first and second links 47, 48 are aligned in a direction parallel to the pivot axis 32 of the trigger lever 30 of each pole 14.16.

L'emboîtement du doigt de déclenchement 52, du bloc auxiliaire 12 dans le pôle 16 voisin s'effectue directement sans aucune pièce intermédiaire de liaison, étant donné que le doigt 52 fait partie de la deuxième liaison mécanique 48 intégrée dans le mécanisme 46.The engagement of the trigger finger 52, of the auxiliary block 12 in the neighboring pole 16 takes place directly without any intermediate connecting part, since the finger 52 is part of the second mechanical link 48 integrated in the mechanism 46.

La variante de la figure 10 ne prévoit pas de déclenchement forcé en cas de discordance des manettes 24,54, mais un rappel automatique de la manette 54 du bloc déclencheur 12 au moyen d'un cliquet 70. Ce dernier est intégré avantageusement dans l'ergot 56 de la manette 54. Lorsque le bloc disjoncteur 10 est fermé, et que le bloc déclencheur 12 se trouve en position désarmée, l'accolement des deux blocs 10,12 provoque sous l'action du cliquet 70 un mouvement de basculement de la manette 54 vers la position armée, c'est à dire en regard avec la manette 24.The variant of FIG. 10 does not provide for forced triggering in the event of discordance of the levers 24.54, but an automatic return of the lever 54 of the trigger block 12 by means of a ratchet 70. The latter is advantageously integrated in the lug 56 of the handle 54. When the circuit breaker block 10 is closed, and the trip block 12 is in the disarmed position, the joining of the two blocks 10,12 causes under the action of the pawl 70 a tilting movement of the lever 54 towards the armed position, that is to say facing lever 24.

Claims (4)

  1. A modular circuit breaker with an auxiliary trip unit (12), notably a ground fault or shunt trip device, able to be adjoined and coupled to a multipole circuit breaker unit (10) :
    - said circuit breaker unit (10) comprising a plurality of juxtaposed poles (14, 16), each pole of said circuit breaker unit (10) comprising separable contacts (18, 20) and a first actuating mechanism (22) of said contacts, controlled either manually by a first operating handle (24) or automatically by a main trip device cooperating with a trip lever (30) in the event of an overload or short-circuit, the respective trip levers (30) of two juxtaposed poles (14, 16) being interconnected by a first transverse finger (44) of a first bidirectional mechanical tripping link (47) to form a modular trip bar (26) enabling multipole tripping by transmission of the tripping movement from one of the poles (14) to the other pole (16), and vice-versa, the trip lever (30) of the first mechanism (22) of each pole (14, 16) comprising a housing (66) in a side face of the lever, and said first finger (44) of the first mechanical link (47) being arranged on the opposite side face, and engaged in the adjoined position of the units (10, 12) in the housing (66) of the trip lever of the adjacent pole,
    - said auxiliary trip unit (12) housing an electromagnetic relay (45) associated with a second operating mechanism (46) comprising a second handle (54) for resetting the trip unit (12) and a second unidirectional mechanical tripping link (48) capable of transmitting the tripping order from the relay (45) to the trip bar (26) of the circuit breaker unit (10), transmission of the tripping order from the relay (45) being performed by insertion of a second finger (52) in an orifice (42) arranged in the insulating case of the pole adjacent to the auxiliary trip unit,
    characterized in that the housing (66) of the trip lever (30) of each pole (14, 16) is extended by a shoulder (62) protruding out from the side face of said lever (30), and that the second finger (52) is built into the second unidirectional mechanical tripping link (48), and cooperates with the shoulder (62) in a predetermined direction of rotation of the bar (26), without penetrating into the housing (66) of the trip lever (30) of the pole (16) adjacent to the trip unit (12).
  2. The modular circuit breaker according to claim 1, characterized in that the shoulder (62) of the trip lever (30) of each pole (14, 16) extends parallel to the respective fingers (44, 52) of the first and second mechanical links (47, 48).
  3. The modular circuit breaker according to either of the claims 1 or 2, characterized in that the fingers (44, 52) of the first and second mechanical links (47, 48) are aligned in a direction parallel to the pivoting axis (32) of the trip lever (30) of each pole (14, 16).
  4. The modular circuit breaker according to claim 3, characterized in that the opposite faces of the insulating case (40) of each pole (14, 16) comprise a pair of orifices (42) aligned in the direction of the trip bar (26) to enable the fingers (44, 52) of the first and second links (47, 48) to pass.
EP19880401007 1987-05-11 1988-04-25 Trip bar for a multipole breaker block associated with an auxiliary trip block Expired - Lifetime EP0291374B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8706624A FR2615322B1 (en) 1987-05-11 1987-05-11 TRIP BAR OF A MULTIPOLAR CIRCUIT BREAKER ASSOCIATED WITH AN AUXILIARY TRIGGER BLOCK
FR8706624 1987-05-11

Publications (2)

Publication Number Publication Date
EP0291374A1 EP0291374A1 (en) 1988-11-17
EP0291374B1 true EP0291374B1 (en) 1992-10-21

Family

ID=9350997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880401007 Expired - Lifetime EP0291374B1 (en) 1987-05-11 1988-04-25 Trip bar for a multipole breaker block associated with an auxiliary trip block

Country Status (4)

Country Link
EP (1) EP0291374B1 (en)
DE (1) DE3875376T2 (en)
ES (1) ES2036695T3 (en)
FR (1) FR2615322B1 (en)

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Also Published As

Publication number Publication date
DE3875376D1 (en) 1992-11-26
DE3875376T2 (en) 1993-05-19
FR2615322A1 (en) 1988-11-18
FR2615322B1 (en) 1989-06-30
ES2036695T3 (en) 1993-06-01
EP0291374A1 (en) 1988-11-17

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