EP1901328A1 - Protection unit - Google Patents

Protection unit Download PDF

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Publication number
EP1901328A1
EP1901328A1 EP06360044A EP06360044A EP1901328A1 EP 1901328 A1 EP1901328 A1 EP 1901328A1 EP 06360044 A EP06360044 A EP 06360044A EP 06360044 A EP06360044 A EP 06360044A EP 1901328 A1 EP1901328 A1 EP 1901328A1
Authority
EP
European Patent Office
Prior art keywords
differential stage
trigger
protection block
circuit breaker
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06360044A
Other languages
German (de)
French (fr)
Other versions
EP1901328B1 (en
Inventor
Denis Deckert
Matthieu De Combejean
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hager Electro SAS
Original Assignee
Hager Electro SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hager Electro SAS filed Critical Hager Electro SAS
Priority to EP20060360044 priority Critical patent/EP1901328B1/en
Priority to ES06360044T priority patent/ES2394094T3/en
Priority to AU2007298854A priority patent/AU2007298854B2/en
Priority to PCT/FR2007/001515 priority patent/WO2008034972A2/en
Priority to CN2007800346506A priority patent/CN101536132B/en
Publication of EP1901328A1 publication Critical patent/EP1901328A1/en
Application granted granted Critical
Publication of EP1901328B1 publication Critical patent/EP1901328B1/en
Active legal-status Critical Current
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
    • H01H71/08—Terminals; Connections
    • H01H71/082—Connections between juxtaposed circuit breakers
    • 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
    • H01H83/22—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 the other condition being imbalance of two or more currents or voltages
    • H01H83/226—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 the other condition being imbalance of two or more currents or voltages with differential transformer

Definitions

  • the present invention relates to a protection block having a differential stage provided with a relay trigger and at least two independent circuit breakers protecting separate circuits.
  • the idea underlying the invention is to group different electrical functions in a monobloc assembly mainly to reduce costs in manufacturing.
  • a differential stage and several circuit breakers are placed side by side on a rail and connected together. either by means of bridging bars or by individualized wiring.
  • a differential switch for example bipolar in the case of a phase / neutral installation is placed at the head of several circuit breakers, the assembly being located for example downstream of a general switch him- even connected to a branch circuit breaker.
  • the pooling or grouping of certain functions with a view to ensuring production gains must, on the other hand, be achieved while at the same time guaranteeing the individualisation of the operation of the circuit breakers which are linked to the differential stage.
  • the triggering mechanisms of the invention operate in parallel.
  • the movement of said mechanisms is controlled by the movement of the tripping relay of the differential stage, regardless of the positions of the locks of the circuit breakers.
  • this triggering mechanism is a lever disposed in each circuit breaker and one end of which is displaced, when the differential stage is tripped, along a path allowing it to come into contact with the lock in order to unlock it.
  • this lever is distinct from the lock itself, and has a mechanical connection only with the trip relay and / or a homologous lever, or with two identical levers of circuit breakers contiguous on both sides. other. In other words, it is located at a location that makes it insensitive to the position of the locks of the circuit breakers.
  • Each mobile lever therefore comprises means for fixing the differential stage or at least one lever of an adjacent circuit breaker.
  • said fixing means consist of a spacer, each end of which allows the fixing to the differential stage or to a lever of a circuit breaker.
  • Each spacer is thus fixed either between two adjacent levers, or between a lever and the differential stage when it must make the connection between said stage and the circuit breaker which is immediately adjacent thereto.
  • these fixing means may consist of a single shaft connecting the levers of the circuit breakers and the differential tripping stage.
  • this configuration has the advantage of allowing the replacement of the input terminals of the circuit breakers by simple electrical connections. , to the extent that they do not have to be accessible from outside said housing.
  • the electrical connection between the output of the differential switch and the inputs of the circuit breakers is indeed opaque for the user.
  • the protection block can also be composed of contiguous boxes, a differential element and at least two circuit breakers, then connected by spacers that constitute the mechanical link between the different devices.
  • the levers may be rotatable, for example articulated at one of their ends in the vicinity of the control lever of the circuit breaker, the other end having a zone of contact with the lock.
  • the trigger of the differential stage may consist of an electromagnetic relay assembly associated with a trigger lock, allowing operation independent of the supply voltage of the block.
  • said trigger may comprise a relay having a transmission coil, allowing dependent operation unlike the supply voltage of the block.
  • the conventional installation diagram in this example represented in two-wire, comprises a differential stage (1) located upstream of a row of circuit-breakers (2), constituted by a differential switch having in particular function to cut the circuit by opening the contacts via a conventional toroidal pattern (6), relay (3) and lock (5).
  • a differential switch (1) head and several circuit breakers (2) is an electrical schema extremely common in distribution boxes, made in the form of modular devices arranged in a row on standardized rails.
  • the differential switch (1) is generally located at one end of the rail, and a number of circuit breakers (2) are contiguous thereto.
  • the standards provide in principle the maximum number of circuit-breakers (2) which can be associated with a differential switch (1).
  • the maximum number of circuit breakers (2) that the Spanish standard plans to associate with a differential switch (1) is equal to 5.
  • the modular devices are connected to one another by means of bridging bars (one for the phase and one for the neutral in the case of a two-wire diagram such as that shown in Figure 1). either by wiring.
  • the objective of the invention is therefore to group the aforementioned electrical functions (differential protection and against overloads or short-circuits), as is shown in FIG. 2, saving a switch in the differential stage (1), and connecting the relay (3) and - according to one possible example - a lock (5) of the differential stage (1). ) circuit breakers (2).
  • This housing (4) incorporates a differential protection assembly (1) composed of a measurement toroid (6) connected to a relay (3), which is capable, via a mechanical link (7), of triggering the locks of the associated circuit breakers (2) if a differential fault occurs.
  • said mechanical connection (7) does not prevent the individualized management of the circuit breakers (2). It thus ensures the simultaneous release of the locks of the circuit breakers without disturbing their individual operation.
  • FIG. 3 also shows the internal character of the links (8, 9) allowing in this version the connection of the phase and the neutral respectively to the input of each circuit breaker (2).
  • the housing (4) of the protection block according to the invention therefore comprises only two input connection terminals (10, 11), for a number of pairs of output connection terminals (12, 12 'to 16, 16 ') corresponding to the number of circuit breakers (2) integrated in the housing (4).
  • five circuit breakers (2) have been associated with the differential component (1), and there are therefore ten output connection connectors (12,12 'to 16,16').
  • the lever (20) of the invention rotatable about an end (21) and having at its other end (22) a protrusion allowing it to exert an action on the triggering catch (17) of the lock, is distinct from the latter, placed between the control lever (18) of the circuit breaker and said trigger pawl (17).
  • This lever (20) does not interfere with the proper functioning of the circuit breakers, which can each be reset by means of the control lever (18) independently of the other circuit breakers.
  • a disjunction caused for example by the electromagnetic motor (19) by action of the firing pin (23) on the trigger (17) has no influence on said lever (20).

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Protection Of Transformers (AREA)

Abstract

The block has a differential switch (1) equipped with an electromagnetic relay (3) and circuit breakers (2). Each circuit breaker has a lock for unlocking the breaker by controlling the differential switch. Input connection terminals (10, 11) are connected to the switch, and output connection terminals (12, 12`-16, 16`) correspond to number of breakers. The breakers are provided with a lever connected to the relay and another lever of adjacent circuit breaker. The levers exert a triggering action on the locks by controlling the relay.

Description

La présente invention a trait à un bloc de protection comportant un étage différentiel muni d'un déclencheur à relais et au moins deux disjoncteurs indépendants protégeant des circuits distincts. L'idée qui est à la base de l'invention est de regrouper des fonctions électriques différentes dans un ensemble monobloc principalement en vue de réduire les coûts à la fabrication.The present invention relates to a protection block having a differential stage provided with a relay trigger and at least two independent circuit breakers protecting separate circuits. The idea underlying the invention is to group different electrical functions in a monobloc assembly mainly to reduce costs in manufacturing.

L'idée à la base de l'association d'un étage différentiel et de plusieurs disjoncteurs provient de ce que, dans nombre de cas, dans un coffret de distribution électrique, ces produits sont placés côte à côte sur un rail et raccordés entre eux soit par l'intermédiaire de barres de pontage, soit par câblage individualisé. Ainsi, selon une configuration de circuit très répandue, un interrupteur différentiel par exemple bipolaire dans le cas d'une installation phase / neutre est placé en tête de plusieurs disjoncteurs, l'ensemble se situant par exemple en aval d'un interrupteur général lui-même connecté à un disjoncteur de branchement.The basic idea behind the combination of a differential stage and several circuit breakers is that, in many cases, in an electrical distribution box, these products are placed side by side on a rail and connected together. either by means of bridging bars or by individualized wiring. Thus, according to a widespread circuit configuration, a differential switch, for example bipolar in the case of a phase / neutral installation is placed at the head of several circuit breakers, the assembly being located for example downstream of a general switch him- even connected to a branch circuit breaker.

Le principe de leur association dans un même boîtier est donc assez naturel notamment dans la perspective précitée de réduction des coûts. Des gains sont alors par exemple possibles sur la quantité de plastique utilisée, sur le nombre de bornes de raccordement à prévoir selon la configuration mise en oeuvre, etc...The principle of their association in the same housing is quite natural especially in the aforementioned perspective of cost reduction. Gains are then possible for example on the amount of plastic used, on the number of connection terminals to be provided according to the configuration used, etc.

Dans la même optique, un tel regroupement permet de s'affranchir de l'interrupteur dans l'étage différentiel, en prévoyant alors évidemment de relier mécaniquement le relais aux serrures des disjoncteurs. Une telle liaison existe déjà, par exemple dans certains blocs différentiels multipolaires, avec un lien mécanique entre le relais de déclenchement différentiel et les serrures des disjoncteurs qui fonctionne en cascade. Les disjoncteurs ont par conséquent tous et à tout moment un comportement identique, notamment parce qu'il n'y pas de débrayage possible entre leurs serrures. Du coup, il n'est pas possible par exemple d'en faire fonctionner un en particulier, notamment s'il est séparé de l'interrupteur différentiel par un ou plusieurs disjoncteurs.In the same perspective, such a grouping makes it possible to overcome the switch in the differential stage, while obviously then providing for mechanically connecting the relay to the locks of the circuit breakers. Such a link already exists, for example in some multipole differential blocks, with a mechanical link between the differential trip relay and the locks of the circuit breakers which operates in cascade. Circuit breakers therefore all have identical behavior at all times, in particular because there is no possible disengagement between their locks. So, it is not possible for example to operate one in particular, especially if it is separated from the differential switch by one or more circuit breakers.

Dans l'hypothèse des blocs différentiels, la totalité des disjoncteurs est en outre réarmée en même temps, ce qui rend impossible le fonctionnement d'une sélection d'un ou plusieurs disjoncteurs à l'exclusion des autres. Il n'y a donc pas, dans cette hypothèse, d'indépendance entre les disjoncteurs, ni de possibilité de protéger des circuits aux fonctionnements distincts.In the case of differential blocks, all circuit breakers are also reset at the same time, which makes it impossible to operate a selection of one or more circuit breakers to the exclusion of others. There is no, in this case, independence between circuit breakers, or the possibility of protecting circuits with different functions.

Dans l'optique de l'invention, la mutualisation ou le regroupement de certaines fonctions en vue d'assurer des gains à la production doit être à l'inverse réalisé en garantissant en même temps l'individualisation du fonctionnement des disjoncteurs qui sont liés à l'étage différentiel.In the context of the invention, the pooling or grouping of certain functions with a view to ensuring production gains must, on the other hand, be achieved while at the same time guaranteeing the individualisation of the operation of the circuit breakers which are linked to the differential stage.

A cet effet, le bloc de protection de l'invention se caractérise à titre principal en ce que :

  • les bornes de raccordement d'entrée du bloc de protection sont reliées à l'étage différentiel ;
  • le bloc de protection comporte des bornes de raccordement de sortie pour chaque disjoncteur ;
  • les disjoncteurs sont chacun dotés d'un mécanisme de déclenchement relié au déclencheur de l'étage différentiel et/ou au mécanisme de déclenchement d'au moins un disjoncteur adjacent ;
  • lesdits mécanismes de déclenchement sont aptes à exercer simultanément une action de déclenchement sur les serrures des disjoncteurs sur impulsion ou commande du déclencheur de l'étage différentiel.
For this purpose, the protection block of the invention is principally characterized in that:
  • the input terminals of the protection block are connected to the differential stage;
  • the protection block has output connection terminals for each circuit breaker;
  • the circuit breakers each have a trip mechanism connected to the differential stage trip unit and / or the trip mechanism of at least one adjacent circuit breaker;
  • said triggering mechanisms are able to simultaneously perform a triggering action on the locks of the circuit breakers on pulse or command of the trigger of the differential stage.

Contrairement au fonctionnement en cascade dont il a été fait état précédemment pour ce qui concerne les blocs différentiels, les mécanismes de déclenchement propres à l'invention fonctionnent en parallèle. Le déplacement desdits mécanismes est commandé par le mouvement du relais de déclenchement de l'étage différentiel, quelles que soient par ailleurs les positions des serrures des disjoncteurs.In contrast to the cascading operation previously mentioned with respect to the differential blocks, the triggering mechanisms of the invention operate in parallel. The movement of said mechanisms is controlled by the movement of the tripping relay of the differential stage, regardless of the positions of the locks of the circuit breakers.

Selon une possibilité, ce mécanisme de déclenchement est un levier disposé dans chaque disjoncteur et dont l'une des extrémités est déplacée, lors du déclenchement de l'étage différentiel, selon un trajet lui permettant d'entrer en contact avec la serrure en vue de la déverrouiller.According to one possibility, this triggering mechanism is a lever disposed in each circuit breaker and one end of which is displaced, when the differential stage is tripped, along a path allowing it to come into contact with the lock in order to unlock it.

Comme indiqué ci-dessus, ce levier est distinct de la serrure proprement dite, et ne comporte une liaison mécanique qu'avec le relais de déclenchement et/ou un levier homologue, ou encore avec deux leviers identiques de disjoncteurs accolés de part et d'autre. En d'autres termes, il est localisé à un emplacement qui le rend insensible à la position des serrures des disjoncteurs. Chaque levier mobile comporte dès lors des moyens de fixation à l'étage différentiel ou à au moins un levier d'un disjoncteur adjacent.As indicated above, this lever is distinct from the lock itself, and has a mechanical connection only with the trip relay and / or a homologous lever, or with two identical levers of circuit breakers contiguous on both sides. other. In other words, it is located at a location that makes it insensitive to the position of the locks of the circuit breakers. Each mobile lever therefore comprises means for fixing the differential stage or at least one lever of an adjacent circuit breaker.

Pour assurer la simultanéité des disjonctions lors du déclenchement de l'étage différentiel, il est nécessaire que ces moyens de fixation assurent la solidarisation entre la totalité des leviers et ledit relais.To ensure the simultaneity of the disjunctions during the tripping of the differential stage, it is necessary that these fixing means ensure the connection between all the levers and said relay.

Selon une possibilité, lesdits moyens de fixation consistent en une entretoise dont chaque extrémité permet la fixation à l'étage différentiel ou à un levier d'un disjoncteur.According to one possibility, said fixing means consist of a spacer, each end of which allows the fixing to the differential stage or to a lever of a circuit breaker.

Chaque entretoise est donc fixée soit entre deux leviers adjacents, soit entre un levier et l'étage différentiel lorsqu'elle doit faire la liaison entre ledit étage et le disjoncteur qui lui est immédiatement adjacent.Each spacer is thus fixed either between two adjacent levers, or between a lever and the differential stage when it must make the connection between said stage and the circuit breaker which is immediately adjacent thereto.

Alternativement, ces moyens de fixation peuvent consister en un arbre unique reliant les leviers des disjoncteurs et l'étage de déclenchement différentiel. Cette solution peut en particulier être mise en oeuvre lorsqu'un boîtier monobloc unique est employé pour le bloc de protection de l'invention, boîtier qui contient alors l'étage différentiel et les disjoncteurs.Alternatively, these fixing means may consist of a single shaft connecting the levers of the circuit breakers and the differential tripping stage. This solution can in particular be implemented when a single one-piece housing is used for the protection block of the invention, housing which then contains the differential stage and the circuit breakers.

Outre l'économie de matière plastique qui est rendue possible par l'utilisation d'un seul boîtier pour l'interrupteur et les disjoncteurs, cette configuration présente l'avantage de permettre le remplacement des bornes d'entrée des disjoncteurs par de simples liaisons électriques, dans la mesure où elles n'ont pas à être accessibles de l'extérieur dudit boîtier. La connexion électrique entre la sortie de l'interrupteur différentiel et les entrées des disjoncteurs est en effet opaque pour l'utilisateur.In addition to the plastic economy that is made possible by the use of a single housing for the switch and the circuit breakers, this configuration has the advantage of allowing the replacement of the input terminals of the circuit breakers by simple electrical connections. , to the extent that they do not have to be accessible from outside said housing. The electrical connection between the output of the differential switch and the inputs of the circuit breakers is indeed opaque for the user.

Le bloc de protection peut également être composé de boîtiers accolés, un élément différentiel et au moins deux disjoncteurs, alors reliés par des entretoises qui constituent le lien mécanique entre les différents appareils.The protection block can also be composed of contiguous boxes, a differential element and at least two circuit breakers, then connected by spacers that constitute the mechanical link between the different devices.

Selon une solution préférentielle, les leviers peuvent être mobiles à rotation, par exemple articulés à l'une de leurs extrémités au voisinage de la manette de commande du disjoncteur, l'autre extrémité comportant une zone de contact avec la serrure.According to a preferred solution, the levers may be rotatable, for example articulated at one of their ends in the vicinity of the control lever of the circuit breaker, the other end having a zone of contact with the lock.

Le déclencheur de l'étage différentiel peut être composé d'un ensemble relais électromagnétique associé à une serrure de déclenchement, permettant un fonctionnement indépendant de la tension d'alimentation du bloc.The trigger of the differential stage may consist of an electromagnetic relay assembly associated with a trigger lock, allowing operation independent of the supply voltage of the block.

Alternativement, ledit déclencheur peut comporter un relais présentant une bobine à émission, permettant un fonctionnement dépendant au contraire de la tension d'alimentation du bloc.Alternatively, said trigger may comprise a relay having a transmission coil, allowing dependent operation unlike the supply voltage of the block.

Ces deux versions correspondent en fait à des appareils différentiels qualifiés respectivement d'électromécanique et d'électronique.These two versions correspond in fact to differential devices qualified respectively electromechanical and electronic.

L'invention va à présent être décrite plus en détails, en référence aux figures annexées, pour lesquelles :

  • la figure 1 représente un schéma d'installation classique d'un interrupteur différentiel associé à des disjoncteurs ;
  • la figure 2 représente un schéma d'installation selon l'invention ;
  • la figure 3 montre, de manière schématique, la réalisation d'un bloc de protection selon l'invention ;
  • la figure 4 montre une implantation et une configuration possibles d'un levier d'actionnement par rapport à une serrure classique de disjoncteur ; et
  • la figure 5 représente en perspective un alignement de tels leviers, avec des entretoises de fixation les uns aux autres.
The invention will now be described in more detail, with reference to the appended figures, for which:
  • Figure 1 shows a typical installation diagram of a differential switch associated with circuit breakers;
  • FIG. 2 represents an installation diagram according to the invention;
  • Figure 3 shows, schematically, the realization of a protection block according to the invention;
  • Figure 4 shows a possible location and configuration of an actuating lever relative to a conventional breaker lock; and
  • Figure 5 shows in perspective an alignment of such levers, with fixing struts to each other.

En référence à la figure 1, le schéma d'installation classique, en l'espèce représenté en bifilaire, comporte un étage différentiel (1) implanté en amont d'une rangée de disjoncteurs (2), constitué d'un interrupteur différentiel ayant notamment pour fonction de couper le circuit par ouverture des contacts via un schéma classique à tore (6), relais (3) et serrure (5). Comme on l'a déjà mentionné, l'association d'un interrupteur différentiel (1) de tête et de plusieurs disjoncteurs (2) constitue un schéma électrique extrêmement courant dans les coffrets de distribution, réalisé sous forme d'appareils modulaires disposés en rang sur des rails normalisés. L'interrupteur différentiel (1) est en général situé à l'une des extrémités du rail, et un certain nombre de disjoncteurs (2) lui sont accolés. Les normes prévoient en principe le nombre de disjoncteurs (2) maximal qui peut être associé à un interrupteur différentiel (1). Ainsi, par exemple, le nombre de disjoncteurs (2) maximal que la norme espagnole prévoit d'associer à un interrupteur différentiel (1) est égal à 5.With reference to FIG. 1, the conventional installation diagram, in this example represented in two-wire, comprises a differential stage (1) located upstream of a row of circuit-breakers (2), constituted by a differential switch having in particular function to cut the circuit by opening the contacts via a conventional toroidal pattern (6), relay (3) and lock (5). As already mentioned, the combination of a differential switch (1) head and several circuit breakers (2) is an electrical schema extremely common in distribution boxes, made in the form of modular devices arranged in a row on standardized rails. The differential switch (1) is generally located at one end of the rail, and a number of circuit breakers (2) are contiguous thereto. The standards provide in principle the maximum number of circuit-breakers (2) which can be associated with a differential switch (1). Thus, for example, the maximum number of circuit breakers (2) that the Spanish standard plans to associate with a differential switch (1) is equal to 5.

Dans les coffrets de distribution, les appareils modulaires sont raccordés entre eux par l'intermédiaire soit de barres de pontage (une pour la phase et une pour le neutre dans le cas d'un schéma bifilaire comme celui qui est représenté en figure 1), soit par câblage.In the distribution boxes, the modular devices are connected to one another by means of bridging bars (one for the phase and one for the neutral in the case of a two-wire diagram such as that shown in Figure 1). either by wiring.

L'objectif de l'invention est donc de regrouper les fonctions électriques précitées (protection différentielle et contre les surcharges ou les courts-circuits), comme cela est montré en figure 2, en faisant l'économie d'un interrupteur dans l'étage différentiel (1), et en reliant le relais (3) et - selon un exemple possible - une serrure (5) de l'étage différentiel (1) aux disjoncteurs (2).The objective of the invention is therefore to group the aforementioned electrical functions (differential protection and against overloads or short-circuits), as is shown in FIG. 2, saving a switch in the differential stage (1), and connecting the relay (3) and - according to one possible example - a lock (5) of the differential stage (1). ) circuit breakers (2).

On peut de surcroît simplifier le raccordement électrique par insertion desdites fonctions dans un ensemble monobloc constitué d'un unique boîtier (4) (voir en figure 3). Ce boîtier (4) intègre un ensemble de protection différentielle (1) composé d'un tore de mesure (6) relié à un relais (3), capable par l'intermédiaire d'une liaison mécanique (7) de déclencher les serrures des disjoncteurs (2) associés si un défaut différentiel survient.In addition, it is possible to simplify the electrical connection by inserting said functions in a one-piece assembly consisting of a single housing (4) (see FIG. 3). This housing (4) incorporates a differential protection assembly (1) composed of a measurement toroid (6) connected to a relay (3), which is capable, via a mechanical link (7), of triggering the locks of the associated circuit breakers (2) if a differential fault occurs.

Selon l'invention, ladite liaison mécanique (7) n'empêche pas la gestion individualisée des disjoncteurs (2). Elle assure donc le déclenchement simultané des serrures des disjoncteurs sans perturber leur fonctionnement individuel.According to the invention, said mechanical connection (7) does not prevent the individualized management of the circuit breakers (2). It thus ensures the simultaneous release of the locks of the circuit breakers without disturbing their individual operation.

La figure 3 fait également apparaître le caractère interne des liaisons (8, 9) permettant dans cette version le raccordement respectivement de la phase et du neutre à l'entrée de chaque disjoncteur (2). Le boîtier (4) du bloc de protection selon l'invention ne comporte par conséquent que deux bornes de raccordement (10 ,11) d'entrée, pour un nombre de paires de bornes de raccordement de sortie (12,12' à 16,16') qui correspond au nombre de disjoncteurs (2) intégrés au boîtier (4). En l'espèce, cinq disjoncteurs (2) ont été associés au composant différentiel (1), et il y a donc dix connecteurs de raccordement de sortie (12,12' à 16,16').FIG. 3 also shows the internal character of the links (8, 9) allowing in this version the connection of the phase and the neutral respectively to the input of each circuit breaker (2). The housing (4) of the protection block according to the invention therefore comprises only two input connection terminals (10, 11), for a number of pairs of output connection terminals (12, 12 'to 16, 16 ') corresponding to the number of circuit breakers (2) integrated in the housing (4). In this case, five circuit breakers (2) have been associated with the differential component (1), and there are therefore ten output connection connectors (12,12 'to 16,16').

En fait, en regardant la configuration d'un disjoncteur classique, telle qu'elle apparaît partiellement en figure 4, le levier (20) de l'invention, mobile en rotation autour d'une extrémité (21) et comportant à son autre extrémité (22) une excroissance lui permettant d'exercer une action sur le cliquet déclencheur (17) de la serrure, est distinct de cette dernière, placé entre la manette (18) de commande du disjoncteur et ledit cliquet déclencheur (17). Ce levier (20) n'interfère pas dans le fonctionnement propre des disjoncteurs, qui peuvent être chacun réarmés à l'aide de la manette de commande (18) indépendamment des autres disjoncteurs. Une disjonction provoquée par exemple par le moteur électromagnétique (19) par action du percuteur (23) sur le déclencheur (17) n'a aucune influence sur ledit levier (20).In fact, by looking at the configuration of a conventional circuit breaker, as it appears partially in FIG. 4, the lever (20) of the invention, rotatable about an end (21) and having at its other end (22) a protrusion allowing it to exert an action on the triggering catch (17) of the lock, is distinct from the latter, placed between the control lever (18) of the circuit breaker and said trigger pawl (17). This lever (20) does not interfere with the proper functioning of the circuit breakers, which can each be reset by means of the control lever (18) independently of the other circuit breakers. A disjunction caused for example by the electromagnetic motor (19) by action of the firing pin (23) on the trigger (17) has no influence on said lever (20).

Lorsque le relais (3) de l'étage différentiel (2) bascule, le levier (20) se déplace, aboutissant à séparer le contact mobile (24) du contact fixe (25) par basculement de la serrure provoqué par le déplacement du cliquet déclencheur (17) suite à son contact avec l'extrémité (22).When the relay (3) of the differential stage (2) toggles, the lever (20) moves, resulting in separating the movable contact (24) from the fixed contact (25) by tilting of the lock caused by the movement of the ratchet trigger (17) following its contact with the end (22).

Ce fonctionnement ne dépend pas de la place du disjoncteur relativement à l'étage différentiel (1). Ainsi, comme cela apparaît en figure 5, les leviers (20) équipant chaque disjoncteur sont par exemple reliés par des entretoises (26) qui répercutent le mouvement initialement impulsé par le relais à chaque disjoncteur. Ces entretoises (26) solidarisent, pour le déplacement rotatif, les différents leviers (20). Elles prennent par exemple la forme de languettes parallélépipédiques insérables dans des logements (27) de forme correspondante. Ce solution convient par exemple pour les ensembles selon l'invention constitués de boîtiers accolés.This operation does not depend on the place of the circuit breaker relative to the differential stage (1). Thus, as shown in FIG. 5, the levers (20) equipping each circuit breakers are connected for example by spacers (26) which echo the movement initially impulsed by the relay to each circuit breaker. These spacers (26) secure, for the rotational movement, the various levers (20). They take for example the form of parallelepipedal tabs insertable in housings (27) of corresponding shape. This solution is suitable for example for assemblies according to the invention consisting of contiguous boxes.

Bien entendu, l'exemple illustré ci-dessus ne peut pas être considéré comme limitatif de l'invention. Des alternatives de forme et de configuration peuvent également être utilisées. Ainsi, par exemple, l'usage des entretoises (26) peut être remplacé par un unique arbre reliant la totalité des leviers (20), dans l'hypothèse d'un boîtier unique.Of course, the example illustrated above can not be considered as limiting the invention. Alternative shape and configuration can also be used. Thus, for example, the use of the spacers (26) can be replaced by a single shaft connecting all the levers (20), assuming a single housing.

Claims (9)

Bloc de protection comportant un étage différentiel (1) muni d'un déclencheur à relais (3) et au moins deux disjoncteurs (2) indépendants protégeant des circuits distincts, chaque disjoncteur (2) comportant ses propres éléments de déclenchement magnétothermiques ainsi qu'une serrure permettant son déverrouillage sur commande de l'étage différentiel (1), caractérisé en ce que : - les bornes de raccordement d'entrée (10,11) du bloc de protection sont reliées à l'étage différentiel (1) ; - le bloc de protection comporte des bornes de raccordement de sortie (12,12' ; 13,13' ; 14,14' ; 15,15'; 16,16') pour chaque disjoncteur (2) ; - les disjoncteurs (2) sont chacun dotés d'un mécanisme de déclenchement (20) relié au déclencheur de l'étage différentiel (1) et/ou au mécanisme de déclenchement (20) d'au moins un disjoncteur (2') adjacent ; - lesdits mécanismes de déclenchement (20) sont aptes à exercer simultanément une action de déclenchement sur les serrures des disjoncteurs (2) sur impulsion ou commande du déclencheur de l'étage différentiel (1). Protection block comprising a differential stage (1) provided with a relay trigger (3) and at least two independent circuit-breakers (2) protecting separate circuits, each circuit-breaker (2) having its own magnetothermic trip elements as well as a circuit breaker (2) lock enabling it to be unlocked on command from the differential stage (1), characterized in that : the input connection terminals (10, 11) of the protection block are connected to the differential stage (1); the protection block comprises output connection terminals (12, 12 ', 13, 13', 14, 14 ', 15, 15', 16, 16 ') for each circuit breaker (2); - the circuit breakers (2) are each provided with a trigger mechanism (20) connected to the trigger of the differential stage (1) and / or the triggering mechanism (20) of at least one adjacent circuit breaker (2 ') ; - Said trigger mechanisms (20) are able to simultaneously perform a triggering action on the locks of the circuit breakers (2) on pulse or control of the trigger of the differential stage (1). Bloc de protection selon la revendication précédente, caractérisé en ce que ledit mécanisme de déclenchement est un levier (20) disposé dans chaque disjoncteur (2) et dont l'une des extrémités (22) est déplacée, lors du déclenchement de l'étage différentiel (1), selon un trajet lui permettant d'entrer en contact avec la serrure en vue de la déverrouiller.Protection block according to the preceding claim, characterized in that said triggering mechanism is a lever (20) disposed in each circuit breaker (2) and one end (22) is displaced, when triggering the differential stage (1), according to a path allowing him to come into contact with the lock in order to unlock it. Bloc de protection selon la revendication précédente, caractérisé en ce que chaque levier (20) comporte des moyens de solidarisation (26) à l'étage différentiel (1) ou à au moins un levier (20) d'un disjoncteur (2) adjacent.Protective block according to the preceding claim, characterized in that each lever (20) comprises means (16) for fastening to the differential stage (1) or at least one lever (20) of an adjacent circuit breaker (2). . Bloc de protection selon la revendication précédente, caractérisé en ce que les moyens de solidarisation consistent en une entretoise (26) dont chaque extrémité permet la fixation à l'étage différentiel (1) ou à un levier (20) d'un disjoncteur (2) adjacent.Protection block according to the preceding claim, characterized in that the securing means consist of a spacer (26), each end of which allows the fixing to the differential stage (1) or to a lever (20) of a circuit breaker (2). ) adjacent. Bloc de protection selon la revendication 3, caractérisé en ce que les moyens de solidarisation consistent en un arbre unique reliant les leviers (20) des disjoncteurs (2) et l'étage différentiel (1).Protection block according to claim 3, characterized in that the securing means consist of a single shaft connecting the levers (20) of the circuit breakers (2) and the differential stage (1). Bloc de protection selon la revendication précédente, caractérisé en ce qu'il comporte un boîtier unique (4) contenant l'étage différentiel (1) et les disjoncteurs (2).Protection block according to the preceding claim, characterized in that it comprises a single housing (4) containing the differential stage (1) and the circuit breakers (2). Bloc de protection selon l'une quelconque des revendications 2 à 6, caractérisé en ce que les leviers (20) sont mobiles à rotation, articulés à l'une de leurs extrémités (21) au voisinage de la manette de commande (18) du disjoncteur (2), l'autre extrémité (22) comportant une zone de contact avec la serrure.Protection block according to any one of claims 2 to 6, characterized in that the levers (20) are rotatable, articulated at one of their ends (21) in the vicinity of the control lever (18) of the circuit breaker (2), the other end (22) having a zone of contact with the lock. Bloc de protection selon l'une quelconque des revendications précédentes, caractérisé en ce que le déclencheur de l'étage différentiel (1) est composé d'un ensemble relais électromagnétique (3) associé à une serrure (5) de déclenchement, permettant un fonctionnement indépendant de la tension d'alimentation du bloc.Protection block according to any one of the preceding claims, characterized in that the trigger of the differential stage (1) is composed of an electromagnetic relay assembly (3) associated with a trigger lock (5), allowing operation independent of the supply voltage of the block. Bloc de protection selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le déclencheur de l'étage différentiel (1) comporte un relais (3) présentant une bobine à émission, permettant un fonctionnement dépendant de la tension d'alimentation du bloc.Protective block according to one of Claims 1 to 7, characterized in that the trigger of the differential stage (1) comprises a relay (3) having a transmitting coil, enabling operation depending on the supply voltage of the block.
EP20060360044 2006-09-18 2006-09-18 Protection unit Active EP1901328B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20060360044 EP1901328B1 (en) 2006-09-18 2006-09-18 Protection unit
ES06360044T ES2394094T3 (en) 2006-09-18 2006-09-18 Protection block
AU2007298854A AU2007298854B2 (en) 2006-09-18 2007-09-18 Protection unit
PCT/FR2007/001515 WO2008034972A2 (en) 2006-09-18 2007-09-18 Protection unit
CN2007800346506A CN101536132B (en) 2006-09-18 2007-09-18 Protection unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20060360044 EP1901328B1 (en) 2006-09-18 2006-09-18 Protection unit

Publications (2)

Publication Number Publication Date
EP1901328A1 true EP1901328A1 (en) 2008-03-19
EP1901328B1 EP1901328B1 (en) 2012-09-12

Family

ID=37668160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060360044 Active EP1901328B1 (en) 2006-09-18 2006-09-18 Protection unit

Country Status (5)

Country Link
EP (1) EP1901328B1 (en)
CN (1) CN101536132B (en)
AU (1) AU2007298854B2 (en)
ES (1) ES2394094T3 (en)
WO (1) WO2008034972A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB597155A (en) * 1942-08-26 1948-01-20 Westinghouse Electric Int Co Improvements in or relating to electrical protective systems
FR2391549A1 (en) 1977-05-17 1978-12-15 Elettrocondutture Water heater and washing machine protection unit - uses main disconnector in feed line and fault-current member and line protection switches with thermal and magnetic tripping
EP0704874A1 (en) * 1994-09-28 1996-04-03 Schneider Electric Sa Differential circuit breaker associated with one or more circuit protection elements such as fuse units or circuit breakers
WO2003012814A1 (en) * 2001-07-23 2003-02-13 Abb Service S.R.L. Modular four-pole residual current circuit breaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB597155A (en) * 1942-08-26 1948-01-20 Westinghouse Electric Int Co Improvements in or relating to electrical protective systems
FR2391549A1 (en) 1977-05-17 1978-12-15 Elettrocondutture Water heater and washing machine protection unit - uses main disconnector in feed line and fault-current member and line protection switches with thermal and magnetic tripping
EP0704874A1 (en) * 1994-09-28 1996-04-03 Schneider Electric Sa Differential circuit breaker associated with one or more circuit protection elements such as fuse units or circuit breakers
WO2003012814A1 (en) * 2001-07-23 2003-02-13 Abb Service S.R.L. Modular four-pole residual current circuit breaker

Also Published As

Publication number Publication date
CN101536132A (en) 2009-09-16
WO2008034972A2 (en) 2008-03-27
AU2007298854A1 (en) 2008-03-27
CN101536132B (en) 2012-04-25
ES2394094T3 (en) 2013-01-17
AU2007298854B2 (en) 2011-03-17
WO2008034972A3 (en) 2008-07-10
EP1901328B1 (en) 2012-09-12

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