EP0926695A1 - Electrical connection device of a differential unit to a circuit breaker or similar and a differential unit equiped with such a device - Google Patents

Electrical connection device of a differential unit to a circuit breaker or similar and a differential unit equiped with such a device Download PDF

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Publication number
EP0926695A1
EP0926695A1 EP98410139A EP98410139A EP0926695A1 EP 0926695 A1 EP0926695 A1 EP 0926695A1 EP 98410139 A EP98410139 A EP 98410139A EP 98410139 A EP98410139 A EP 98410139A EP 0926695 A1 EP0926695 A1 EP 0926695A1
Authority
EP
European Patent Office
Prior art keywords
conductors
conductor
torus
differential unit
circuit breaker
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
EP98410139A
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German (de)
French (fr)
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EP0926695B1 (en
Inventor
Patrick Guillon
Claude Burnot
Bernard Lebeau
Jean Dornier
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Schneider Electric Industries SAS
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Schneider Electric SE
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Publication of EP0926695A1 publication Critical patent/EP0926695A1/en
Application granted granted Critical
Publication of EP0926695B1 publication Critical patent/EP0926695B1/en
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    • 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
    • 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
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • H01H2083/148—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer with primary windings formed of rigid copper conductors
    • 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

Definitions

  • the present invention relates to an electrical connection device for a differential unit on a circuit breaker or the like, comprising a certain number of conductors intended to connect electrically the circuit breaker's output terminals to the differential block's output terminals, said conductors passing through the torus.
  • One of the solutions consists in using sheathed flexible braids each connecting one of the output terminals of the differential block at one of the terminals of the circuit breaker via a semi-rigid conductor in the form of a crank in enamelled wires crossing the toroid, the braids and conductors being connected to the upper part of the torus.
  • these semi-rigid conductors due to their shape in are particularly bulky, and require that a certain amount be reserved for them volume intended to allow their manipulation.
  • the diameter of the enameled wires constituting said conductor is generally limited to 4.5 mm, because increasing this diameter would considerably increase the size of the torus.
  • Another solution consists, to make this connection of a differential block of caliber high to a circuit breaker, to provide sheathed braids of large section directly connecting the circuit breaker output terminals to those of the differential unit, after passage through the toroid.
  • Gold in this solution, it is necessary to provide a toroid window of enlarged dimension.
  • Another solution consists in providing strips extending under the circuit breaker and connecting the circuit breaker to the differential unit by means of sheathed braids crossing the toroid and connected to the strips above the torus.
  • the disadvantage of this solution is that the space under the circuit breaker is important.
  • the connection device considerably encumbers the upper part of the block situated above the toroid.
  • the present invention solves these problems and proposes a device for connecting a block differential on a circuit breaker, and a differential block comprising it, allowing a high caliber differential block in a small footprint and a method of setting work of this device.
  • the present invention relates to a device of the kind previously mentioned, this device being characterized in that at least one of the aforementioned conductors is a rigid conductor with a solid core, said conductor having a first end intended to be electrically connected to the corresponding terminal of the circuit breaker and a second end welded to end on a contact pad mechanically and electrically connected to the corresponding output terminal of the differential unit.
  • the aforementioned conductor (s) is (are) welded at the end on one, called the first, of the ends of one (respectively of several) conductor (s) intermediate (s) crossing the torus, the second end of which is electrically connected and mechanically at the corresponding range.
  • the intermediate conductor (s) is (are) welded at the end on the beach (s).
  • the second end of the intermediate conductor (s) is in one piece with the range (s).
  • the aforementioned conductor (s) and / or intermediate conductors is (are) single strand (s).
  • the aforementioned conductor (s) and / or intermediate conductor (s) is (are) copper.
  • the aforementioned conductor (s) and / or conductors intermediaries have a circular section.
  • the conductors and / or intermediate conductors are shaped so that the cross-section of all the combined conductors is substantially circular, this in order to minimize their bulk inside the torus.
  • the devices being of the bipolar type, the conductors and possibly intermediate conductors are two in number and each have a semi-circular section.
  • the devices being of the four-pole type, the conductors and possibly the intermediate conductors are four in number, each of conductors with a quadrant section.
  • the conductors or conductors intermediate (s) extend in a straight line up to the ranges.
  • the second end of the conductor (s) and / or of the conductors intermediates is welded-soldered on the corresponding area (s).
  • the conductor (s) or conductor (s) intermediate (s) is (are) folded four times at right angles.
  • the aforementioned conductor (s) and / or intermediate conductor (s) is (are) covered with an epoxy-type insulating coating.
  • the invention also relates to a method of implementing a device such as previously described, consisting in threading the torus around the second end (s) of the conductor (s), then sliding said torus along said conductors in one direction opposite to said ends, then to carry out the butt welding of said ends on the beaches.
  • the invention also relates to a differential unit equipped with a device comprising the previously mentioned characteristics taken alone or in combination.
  • the differential unit comprising a finger trigger extending projecting from the face of said block intended to be attached to the circuit breaker, it further comprises a protective finger extending substantially parallel said trigger finger over a length slightly greater than that of said finger and intended to absorb shocks instead of the trigger finger.
  • a differential block B intended to be associated with a circuit breaker (not shown) by means of a connection device E according to the invention, to ensure the protection of an electrical installation supplied by the network electric, said block having the function of ensuring the detection of earth fault currents.
  • the mechanism M of the differential unit B is intended to be housed in a housing comprising a base 1 and a front face 2, and which can receive one or more auxiliaries 3,4 as will be explained later. It mainly comprises a differential current transformer T consisting of a toroid 5, primary conductors 6 to 9, formed by the active conductors of the installation and secondary windings (not shown), at the terminals of which a signal is established. differential fault when a fault occurs in the primary conductors.
  • This secondary winding is connected to a triggering means such as a high-sensitivity relay (not shown), said relay ensuring triggering by activating a trigger finger 10 (fig. 2) located on a side face of the block, when the secondary signal exceeds a predetermined threshold.
  • a trigger finger 10 (fig. 2) located on a side face of the block, when the secondary signal exceeds a predetermined threshold.
  • This tripping finger 10 is mechanically connected to the tripping mechanism of the circuit breaker in the associated position of the two devices, so as to ensure the triggering of the lock of a breaking device protecting the circuit when this secondary signal exceeds a predetermined threshold.
  • This differential block B is of the four-pole type, and comprises at its lower part, four terminals 11 to 14 electrically connected to the active conductors 6 to 9 of the installation, which are connected to the four terminals belonging to the circuit breaker and located at the bottom of its housing, by means of a connection device E according to the invention.
  • This device E comprises, for each of the terminals 11 to 14 of the block, a rigid conductor made of copper 19 having a diameter of 6 mm, said conductor 19 being bent four times substantially at right angles.
  • This conductor 19 has at one of its ends 19a a flat 20 able to be fixed in one of the terminals of the circuit breaker, and is intended to be connected electrically by its opposite end 19b, at one of the terminals 11 to 14 of the block differential. It can be seen in particular in FIG.
  • each conductor 19 comprises a first connection part a extending parallel to the lateral faces 21 of housings, a second part b perpendicular to the first extending parallel to the underside 22 of the housings and the rail, a third part c extending substantially perpendicular to the second b along the torus 5 substantially parallel to the faces side 21 of the block, a fourth part d substantially perpendicular to the third c and extending parallel to the upper part 24, 25 of the differential block and of the torus 5, and a fifth part e substantially perpendicular to the fourth d, and crossing the torus 5 to be fixed by soldering at its free end on a connection pad 26 to 29 of the corresponding terminal of the block.
  • auxiliaries 3,4 are fixed to the housing B by snap-fastening and can perform several functions, for example the signal differential fault, remote opening, leakage current signaling.
  • auxiliaries 3,4 are simply mounted in a translational movement (fig. 3a) after having removed the shutters 30, 31 with a rotational movement using a screwdriver.
  • the trigger finger 10 projects perpendicular to the abutment face 21 of the differential unit, which makes it exposed to shocks which may be caused for example by a fall. These shocks towards the trigger finger 10 can cause a malfunction of said finger 10 and therefore hinder the normal operation of the mechanism.
  • differential blocks B in accordance with the invention due to the use of rigid cables 19, the devices are relatively heavy and the combination of the two devices is performed in most cases automatically. As a result, when association or in the event of a fall or shock, the trigger finger is still more exposed to receiving high intensity shocks.
  • the differential block B has on its face 21 adjoining the circuit breaker, a protective finger 32 extending parallel to the tripping finger 10 close to the latter, and intended to absorb the shocks exerted by direction of release finger 10.
  • the method of welding the conductors 6.8 on tracks 26 to 29, as illustrated in FIG. 4, is as follows: The torus 5 is first of all displaced in translation according to arrow A. Then, the clamps of tightening 33 ensuring the maintenance of the connections, an electrode 34 is moved in the direction of the pads 26, 29 and applied to the face f of the pads opposite to the core 5, so as to ensure the soldering of the end of the conductor on the pad coppered in the Y axis of the torus 5.
  • the use of a phosphor soldering butterfly improves the efficiency of the weld (better resistance to tearing).
  • the aforementioned conductor (s) is (are) soldered at the end on one 36a, called the first, of the ends of one (respectively of several) intermediate conductor (s) 36 passing through the torus (T) the second end of which 36b is electrically and mechanically connected to the corresponding range 26 to 29.
  • This embodiment in addition to the advantages already described in the embodiment described above, reduces even more the space above the torus.
  • the process for implementing the corresponding device is as follows. The torus is threaded around the conductor (s) intermediate (s) 36 secured to the pads, by sliding the torus along the conductors intermediates 36 in the direction of ranges 26 to 29, then the end welding of the conductors on the intermediate conductors 36.
  • the intermediate conductor (s) 36 is (are) butt welded on the beach (s).
  • the second end 36b of the intermediate conductor (s) 36 is in one piece with the range (s).
  • the primary conductors 6 to 9 made of rigid copper wire, with a diameter 6 mm, are advantageously coated with an epoxy type insulator for example. Thanks to the invention, therefore, a differential block B having a high caliber and small footprint. It is thus possible to produce a range of differential blocks Auxiliaries whose caliber can reach 125A without increasing the bulk compared to to the blocks currently in use. This rigidity of the connections allows rapid association and simple with the circuit breaker making the circuit breaker-differential assembly more compact, optimizing the connection of devices on the bottom rail.
  • epoxy coating of the conductors by depositing a paint in powder, will insulate the conductors from each other and help optimize the inner window of the torus.
  • the invention makes it possible to optimize the overall dimensions of the differential chain as much as possible. along the axis of the rail and thus achieve a range of 125A all sensitivities to own current including 30mA, in a small footprint, for example in a size of 99mm wide.
  • This type of connection minimizes the dimensions along the Y axis by eliminating the operations of bending the primaries after passing through the torus.
  • This bond also reduces the volume along the X and Z axes by the density of copper passed through the torus window.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The connection wires (6, 9, 19) have a solid center section making them rigid without being bulky.

Description

La présente invention concerne un dispositif de raccordement électrique d'un bloc différentiel sur un disjoncteur ou analogue, comprenant un certain nombre de conducteurs destinés à relier électriquement les bornes de sortie du disjoncteur aux bornes de sorties du bloc différentiel, lesdits conducteurs passant à travers le tore.The present invention relates to an electrical connection device for a differential unit on a circuit breaker or the like, comprising a certain number of conductors intended to connect electrically the circuit breaker's output terminals to the differential block's output terminals, said conductors passing through the torus.

Plusieurs solutions ont été envisagées pour réaliser ce raccordement. L'une des solutions consiste à utiliser des tresses souples gainées reliant chacune l'une des bornes de sortie du bloc différentiel à l'une des bornes du disjoncteur par l'intermédiaire d'un conducteur semi-rigide en forme de manivelle en fils émaillés traversant le tore, les tresses et conducteurs étant reliés à la partie supérieure du tore. Or, ces conducteurs semi-rigides, du fait de leur forme en manivelle, sont particulièrement encombrants, et nécessitent qu'on leur réserve un certain volume destiné à permettre leur manipulation. De plus, le diamètre des fils émaillés constituant ledit conducteur, est limité en général à 4,5 mm, car augmenter ce diamètre conduirait à augmenter considérablement l'encombrement du tore.Several solutions have been considered for making this connection. One of the solutions consists in using sheathed flexible braids each connecting one of the output terminals of the differential block at one of the terminals of the circuit breaker via a semi-rigid conductor in the form of a crank in enamelled wires crossing the toroid, the braids and conductors being connected to the upper part of the torus. However, these semi-rigid conductors, due to their shape in are particularly bulky, and require that a certain amount be reserved for them volume intended to allow their manipulation. In addition, the diameter of the enameled wires constituting said conductor, is generally limited to 4.5 mm, because increasing this diameter would considerably increase the size of the torus.

Une autre solution consiste, pour réaliser ce raccordement d'un bloc différentiel de calibre élevé à un disjoncteur, à prévoir des tresses gainées de forte section reliant directement les bornes de sortie du disjoncteur à celles du bloc différentiel, après passage à travers le tore. Or, dans cette solution, il est nécessaire de prévoir une fenêtre de tore de dimension élargie.Another solution consists, to make this connection of a differential block of caliber high to a circuit breaker, to provide sheathed braids of large section directly connecting the circuit breaker output terminals to those of the differential unit, after passage through the toroid. Gold, in this solution, it is necessary to provide a toroid window of enlarged dimension.

Une autre solution consiste à prévoir des feuillards s'étendant sous le disjoncteur et reliant le disjoncteur au bloc différentiel par l'intermédiaire de tresses gainées traversant le tore et reliées aux feuillards au dessus du tore. Or, l'inconvénient de cette solution tient en ce que l'encombrement sous le disjoncteur est important.
En outre, dans toutes ces solutions, le dispositif de raccordement encombre considérablement la partie supérieure du bloc située au dessus du tore.Another solution consists in providing strips extending under the circuit breaker and connecting the circuit breaker to the differential unit by means of sheathed braids crossing the toroid and connected to the strips above the torus. However, the disadvantage of this solution is that the space under the circuit breaker is important.
In addition, in all these solutions, the connection device considerably encumbers the upper part of the block situated above the toroid.

Et l'on connaít enfin une dernière solution dans laquelle chacune des bornes du bloc différentiel et du disjoncteur sont reliées directement par un câble semi-rigide traversant le tore et dont l'une des extrémités est courbée puis aplatie de manière à être soudée à plat sur une plage associée à l'une des bornes du bloc différentiel. Il résulte de cette solution un encombrement important au niveau de la zone de raccordement aux bornes du bloc différentiel. Cette solution, réservée aux petits calibres, ne peut pas être étendue aux calibres importants, car ceci conduirait à un encombrement encore plus important au niveau de cette zone.And we finally know a last solution in which each of the terminals of the block differential and circuit breaker are connected directly by a semi-rigid cable crossing the torus and one end of which is curved and then flattened so as to be welded flat to a range associated with one of the terminals of the differential block. The result of this solution is significant space in the area of connection to the terminals of the block differential. This solution, reserved for small sizes, cannot be extended to sizes important, because this would lead to an even greater congestion at the level of this zoned.

La présente invention résout ces problèmes et propose un dispositif de raccordement d'un bloc différentiel sur un disjoncteur, et un bloc différentiel le comportant, permettant de réaliser un bloc différentiel de calibre élevé dans un encombrement réduit ainsi qu'un procédé de mise en oeuvre de ce dispositif.The present invention solves these problems and proposes a device for connecting a block differential on a circuit breaker, and a differential block comprising it, allowing a high caliber differential block in a small footprint and a method of setting work of this device.

A cet effet, la présente invention a pour objet un dispositif du genre précédemment mentionné, ce dispositif étant caractérisé en ce qu'au moins l'un des conducteurs précités est un conducteur rigide à âme massive, ledit conducteur présentant une première extrémité destinée à être reliée électriquement à la borne correspondante du disjoncteur et une seconde extrémité soudée en bout sur une plage de contact reliée mécaniquement et électriquement à la borne de sortie correspondante du bloc différentiel.To this end, the present invention relates to a device of the kind previously mentioned, this device being characterized in that at least one of the aforementioned conductors is a rigid conductor with a solid core, said conductor having a first end intended to be electrically connected to the corresponding terminal of the circuit breaker and a second end welded to end on a contact pad mechanically and electrically connected to the corresponding output terminal of the differential unit.

Selon une réalisation particulière, le (les) conducteur(s) précité(s) est (sont) soudé(s) en bout sur l'une, dite première, des extrémités d'un (respectivement de plusieurs) conducteur(s) intermédiaire(s) traversant le tore dont la seconde extrémité est reliée électriquement et mécaniquement à la plage correspondante.According to a particular embodiment, the aforementioned conductor (s) is (are) welded at the end on one, called the first, of the ends of one (respectively of several) conductor (s) intermediate (s) crossing the torus, the second end of which is electrically connected and mechanically at the corresponding range.

Selon une caractéristique particulière, le(les) conducteur(s) intermédiaire(s) est (sont) soudé(s) en bout sur la(les) plage(s).According to a particular characteristic, the intermediate conductor (s) is (are) welded at the end on the beach (s).

Selon une variante de réalisation, la seconde extrémité du(des) conducteur(s) intermédiaire(s) est d'une seule pièce avec la (les) plages.According to an alternative embodiment, the second end of the intermediate conductor (s) is in one piece with the range (s).

Avantageusement, le (ou les) conducteur(s) précités et/ou conducteurs intermédiaires est (sont) monobrin(s).Advantageously, the aforementioned conductor (s) and / or intermediate conductors is (are) single strand (s).

Avantageusement, le (les) conducteur(s) précité(s) et/ou conducteur(s) intermédiaire(s) est (sont) en cuivre.Advantageously, the aforementioned conductor (s) and / or intermediate conductor (s) is (are) copper.

Selon une caractéristique particulière, le (les) conducteur(s) précité(s) et/ou conducteurs intermédiaires présente(ent) une section circulaire.According to a particular characteristic, the aforementioned conductor (s) and / or conductors intermediaries have a circular section.

Selon une autre caractéristique particulière les conducteurs et/ou conducteurs intermédiaires sont conformés de manière que la section de l'ensemble des conducteurs réunis soit sensiblement circulaire, ceci afin de minimiser leur encombrement à l'intérieur du tore. According to another particular characteristic, the conductors and / or intermediate conductors are shaped so that the cross-section of all the combined conductors is substantially circular, this in order to minimize their bulk inside the torus.

Selon une réalisation particulière, les appareils étant du type bipolaire, les conducteurs et éventuellement conducteurs intermédiaires sont au nombre de deux et présentent chacun une section semi-circulaire.According to a particular embodiment, the devices being of the bipolar type, the conductors and possibly intermediate conductors are two in number and each have a semi-circular section.

Selon une autre réalisation, les appareils étant du type tétrapolaire, les conducteurs et éventuellement les conducteurs intermédiaires sont au nombre de quatre, chacun des conducteurs présentant une section en quart de cercle.According to another embodiment, the devices being of the four-pole type, the conductors and possibly the intermediate conductors are four in number, each of conductors with a quadrant section.

Avantageusement, à partir de leur entrée dans le tore, les conducteurs ou conducteurs intermédiaires(s) s'étendent de manière rectiligne jusqu'aux plages.Advantageously, from their entry into the torus, the conductors or conductors intermediate (s) extend in a straight line up to the ranges.

Avantageusement, la seconde extrémité du (des) conducteur(s) et/ou des conducteurs intermédiaires est soudé-brasée sur la (les) plages correspondante(s).Advantageously, the second end of the conductor (s) and / or of the conductors intermediates is welded-soldered on the corresponding area (s).

Avantageusement entre leurs deux extrémités, le (les ) conducteur(s) ou conducteur(s) intermédiaire(s) est (sont) plié(s) quatre fois à angle droit.Advantageously between their two ends, the conductor (s) or conductor (s) intermediate (s) is (are) folded four times at right angles.

Avantageusement, le(les) conducteur(s) précité(s) et/ ou conducteurs intermédiaire(s) est (sont) recouvert(s) d'un revêtement isolant de type epoxy.Advantageously, the aforementioned conductor (s) and / or intermediate conductor (s) is (are) covered with an epoxy-type insulating coating.

L'invention a également pour objet un procédé de mise en oeuvre d'un dispositif tel que précédemment décrit, consistant à enfiler le tore autour de la (des) seconde(s) extrémité(s) des conducteur(s), puis à faire coulisser ledit tore le long desdits conducteurs dans une direction opposée auxdites extrémités, puis à réaliser le soudage en bout desdites extrémités sur les plages.The invention also relates to a method of implementing a device such as previously described, consisting in threading the torus around the second end (s) of the conductor (s), then sliding said torus along said conductors in one direction opposite to said ends, then to carry out the butt welding of said ends on the beaches.

L'invention a également pour objet un bloc différentiel équipé d'un dispositif comportant les caractéristiques précédemment mentionnées prises seules ou en combinaison.The invention also relates to a differential unit equipped with a device comprising the previously mentioned characteristics taken alone or in combination.

Selon une caractéristique particulière, le bloc différentiel comportant un doigt de déclenchement s'étendant en saillie sur la face dudit bloc destinée à être accolée au disjoncteur, il comporte en outre un doigt de protection s'étendant sensiblement parallèlement audit doigt de déclenchement sur une longueur légèrement supérieure à celle dudit doigt et destiné à encaisser les chocs à la place du doigt de déclenchement. According to a particular characteristic, the differential unit comprising a finger trigger extending projecting from the face of said block intended to be attached to the circuit breaker, it further comprises a protective finger extending substantially parallel said trigger finger over a length slightly greater than that of said finger and intended to absorb shocks instead of the trigger finger.

Mais d'autres avantages et caractéristiques de l'invention apparaítront mieux dans la description détaillée qui suit et se réfère aux dessins annexés donnés uniquement à titre d'exemple et dans lesquels :

  • La figure.1 est une vue en perspective éclatée, illustrant un bloc différentiel équipé d'un dispositif de raccordement conforme à l'invention,
  • La figure 2 est une vue en perspective dudit bloc sur lequel des auxiliaires s'apprêtent à être fixés,
  • Les figures.3 et 3a sont deux vues en perspective illustrant le bloc différentiel et plus particulièrement sa face supérieure destinée à recevoir les auxiliaires, respectivement avant et après la fixation des auxiliaires,
  • La figure 4 est une vue en coupe, illustrant le procédé de soudage des câbles sur les plages, et
  • La figure illustre dans une vue en perspective, une autre réalisation de l'invention.
However, other advantages and characteristics of the invention will appear better in the detailed description which follows and refers to the appended drawings given solely by way of example and in which:
  • FIG. 1 is an exploded perspective view, illustrating a differential unit equipped with a connection device according to the invention,
  • FIG. 2 is a perspective view of said block on which auxiliaries are about to be fixed,
  • Figures 3 and 3a are two perspective views illustrating the differential unit and more particularly its upper face intended to receive the auxiliaries, respectively before and after the fixation of the auxiliaries,
  • FIG. 4 is a sectional view, illustrating the process for welding the cables to the pads, and
  • The figure illustrates in a perspective view, another embodiment of the invention.

Sur la figure 1, on voit un bloc différentiel B destiné à être associé à un disjoncteur (non représenté) au moyen d'un dispositif de raccordement E conforme à l'invention, pour assurer la protection d'une installation électrique alimentée par le réseau électrique, ledit bloc ayant pour fonction d'assurer la détection des courants de défaut à la terre. Le mécanisme M du bloc différentiel B est destiné à être logé dans un boítier comprenant un socle 1 et une face avant 2, et pouvant recevoir un ou plusieurs auxiliaires 3,4 comme ceci sera expliqué ultérieurement. Il comprend principalement un transformateur d'intensité différentiel T constitué par un tore 5, des conducteurs primaires 6 à 9, formés par les conducteurs actifs de l'installation et des enroulements secondaires (non représentés), aux bornes desquels s'établit un signal de défaut différentiel lors de l'apparition d'un défaut dans les conducteurs primaires. Cet enroulement secondaire est relié à un moyen de déclenchement tel un relais à haute sensibilité (non représenté), ledit relais assurant le déclenchement en activant un doigt de déclenchement 10 (fig.2) situé sur une face latérale du bloc, lorsque le signal secondaire dépasse un seuil prédéterminé.
Ce doigt de déclenchement 10 est relié mécaniquement au mécanisme de déclenchement du disjoncteur en position associée des deux appareils, de manière à assurer le déclenchement de la serrure d'un appareil de coupure protégeant le circuit lorsque ce signal secondaire dépasse un seuil prédéterminé.In Figure 1, we see a differential block B intended to be associated with a circuit breaker (not shown) by means of a connection device E according to the invention, to ensure the protection of an electrical installation supplied by the network electric, said block having the function of ensuring the detection of earth fault currents. The mechanism M of the differential unit B is intended to be housed in a housing comprising a base 1 and a front face 2, and which can receive one or more auxiliaries 3,4 as will be explained later. It mainly comprises a differential current transformer T consisting of a toroid 5, primary conductors 6 to 9, formed by the active conductors of the installation and secondary windings (not shown), at the terminals of which a signal is established. differential fault when a fault occurs in the primary conductors. This secondary winding is connected to a triggering means such as a high-sensitivity relay (not shown), said relay ensuring triggering by activating a trigger finger 10 (fig. 2) located on a side face of the block, when the secondary signal exceeds a predetermined threshold.
This tripping finger 10 is mechanically connected to the tripping mechanism of the circuit breaker in the associated position of the two devices, so as to ensure the triggering of the lock of a breaking device protecting the circuit when this secondary signal exceeds a predetermined threshold.

Ce bloc différentiel B est du type tétrapolaire, et comporte à sa partie inférieure, quatre bornes 11 à 14 reliées électriquement aux conducteurs actifs 6 à 9 de l'installation, lesquels sont reliés aux quatre bornes appartenant au disjoncteur et situées à la partie inférieure de son boítier, au moyen d'un dispositif de raccordement E conforme à l'invention. This differential block B is of the four-pole type, and comprises at its lower part, four terminals 11 to 14 electrically connected to the active conductors 6 to 9 of the installation, which are connected to the four terminals belonging to the circuit breaker and located at the bottom of its housing, by means of a connection device E according to the invention.

Ce dispositif E comprend, pour chacune des bornes 11 à 14 du bloc, un conducteur rigide en cuivre 19 présentant un diamètre de 6 mm, ledit conducteur 19 étant plié quatre fois sensiblement à angle droit. Ce conducteur 19 comporte à l'une 19a de ses extrémités un méplat 20 apte à être fixé dans l'une des bornes du disjoncteur, et est destiné à être relié électriquement par son extrémité opposée 19b, à l'une des bornes 11 à 14 du bloc différentiel. On voit en particulier sur la figure 1, que chaque conducteur 19 comprend une première partie de raccordement a s'étendant parallèlement aux faces latérales 21 des boítiers, une seconde partie b perpendiculaire à la première s'étendant parallèlement à la face inférieure 22 des boítiers et au rail, une troisième partie c s'étendant sensiblement perpendiculairement à la seconde b le long du tore 5 sensiblement parallèlement aux faces latérales 21 du bloc, une quatrième partie d sensiblement perpendiculaire à la troisième c et s'étendant parallèlement à la partie supérieure 24, 25 du bloc différentiel et du tore 5, et une cinquième partie e sensiblement perpendiculaire à la quatrième d, et traversant le tore 5 pour être fixé par soudo-brasure à son extrémité libre sur une plage de raccordement 26 à 29 de la borne correspondante du bloc. Du fait que ces conducteurs 6 à 9 sont soudés en bout aux plages 26 à 29 correspondantes, l'encombrement au niveau du raccordement aux bornes de sortie 11 à 14 du bloc différentiel B est réduit, ce qui rend possible l'utilisation de conducteurs rigides de diamètre important et donc la réalisation de bloc différentiel de calibre important, ce qui permet d'obtenir une gamme de bloc différentiel toute sensibilités à propre courant y compris le 30 mA. On notera que les plages sont avantageusement en cuivre étamé. Cet encombrement réduit du mécanisme d'une part, au niveau de la zone de raccordement, d'autre part, autour et en particulier au dessus du tore, car les conducteurs 19 épousent le contour du tore 5, permet au boítier du bloc différentiel de recevoir des auxiliaires 3,4 enfichés dans des logements 34, 35 prévus de part et d'autre du tore 5 dans la face supérieure 24 du bloc différentiel, opposée à celle 22 comportant les bornes 11,14 comme ceci est représenté sur les figure 2, 3 et 3a. Ces auxiliaires 3,4 sont fixés au boitier B par encliquetage et peuvent assurer plusieurs fonctions à savoir par exemple, le signal défaut différentiel, l'ouverture à distance, la signalisation du courant de fuite. Ces auxiliaires 3,4 se montent simplement en un mouvement de translation (fig.3a) après avoir enlevé les obturateurs 30,31 d'un mouvement de rotation à l'aide d'un tournevis. En fin de mouvement, un 'click' et le passage d'un point dur indiquent à l'utilisateur que l'accessoire est correctement assemblé (fig.3a). Pour le démontage sans outil, il suffit d'arracher les auxiliaires de leur logement et éventuellement de replacer les obturateurs clipsés 30,31.This device E comprises, for each of the terminals 11 to 14 of the block, a rigid conductor made of copper 19 having a diameter of 6 mm, said conductor 19 being bent four times substantially at right angles. This conductor 19 has at one of its ends 19a a flat 20 able to be fixed in one of the terminals of the circuit breaker, and is intended to be connected electrically by its opposite end 19b, at one of the terminals 11 to 14 of the block differential. It can be seen in particular in FIG. 1, that each conductor 19 comprises a first connection part a extending parallel to the lateral faces 21 of housings, a second part b perpendicular to the first extending parallel to the underside 22 of the housings and the rail, a third part c extending substantially perpendicular to the second b along the torus 5 substantially parallel to the faces side 21 of the block, a fourth part d substantially perpendicular to the third c and extending parallel to the upper part 24, 25 of the differential block and of the torus 5, and a fifth part e substantially perpendicular to the fourth d, and crossing the torus 5 to be fixed by soldering at its free end on a connection pad 26 to 29 of the corresponding terminal of the block. Because these conductors 6 to 9 are soldered in end to the corresponding ranges 26 to 29, the space taken up at the connection to the output terminals 11 to 14 of the differential block B is reduced, making it possible to use rigid conductors of large diameter and therefore the realization of differential block of large caliber, which allows to obtain a range of differential block any sensitivities at own current including 30 mA. Note that the ranges are advantageously in tinned copper. This reduced size of the mechanism on the one hand, at the level of the connection, on the other hand, around and in particular above the torus, because the conductors 19 follow the contour of the torus 5, allows the housing of the differential block to receive auxiliaries 3,4 plugged into housings 34, 35 provided on either side of the torus 5 in the upper face 24 of the differential unit, opposite that 22 comprising the terminals 11,14 as shown in Figures 2, 3 and 3a. These auxiliaries 3,4 are fixed to the housing B by snap-fastening and can perform several functions, for example the signal differential fault, remote opening, leakage current signaling. These auxiliaries 3,4 are simply mounted in a translational movement (fig. 3a) after having removed the shutters 30, 31 with a rotational movement using a screwdriver. In end of movement, a 'click' and the passage of a hard point indicate to the user that the accessory is correctly assembled (fig.3a). For disassembly without tools, it suffices to remove the auxiliaries from their housing and possibly replace the shutters clipped 30.31.

On voit sur la figure 2 que le doigt de déclenchement 10 fait saillie perpendiculairement à la face d'accolement 21 du bloc différentiel, ce qui le rend exposé aux chocs pouvant être occasionnés par exemple par une chute. Ces chocs en direction du doigt de déclenchement 10 peuvent entraíner un mauvais fonctionnement dudit doigt 10 et donc entraver le fonctionnement normal du mécanisme.It can be seen in FIG. 2 that the trigger finger 10 projects perpendicular to the abutment face 21 of the differential unit, which makes it exposed to shocks which may be caused for example by a fall. These shocks towards the trigger finger 10 can cause a malfunction of said finger 10 and therefore hinder the normal operation of the mechanism.

Dans les réalisations de blocs différentiels B conformes à l'invention, du fait de l'utilisation de câbles rigides 19, les appareils sont relativement lourds et l'association des deux appareils est réalisée dans la plupart des cas automatiquement. Il en résulte que lors de l'association ou dans le cas d'une chute ou d'un choc, le doigt de déclenchement est encore plus exposé à recevoir des chocs d'intensité importante .In the embodiments of differential blocks B in accordance with the invention, due to the use of rigid cables 19, the devices are relatively heavy and the combination of the two devices is performed in most cases automatically. As a result, when association or in the event of a fall or shock, the trigger finger is still more exposed to receiving high intensity shocks.

Afin de pallier cet inconvénient, le bloc différentiel B comporte sur sa face d'accolement 21 au disjoncteur, un doigt de protection 32 s'étendant parallèlement au doigt de déclenchement 10 à proximité de celui-ci, et destiné à encaisser les chocs exercés en direction du doigt de déclenchement 10.
Le procédé de soudage des conducteurs 6,8 sur les plages 26 à 29, tel qu'illustré sur la figure 4, est le suivant : Le tore 5 est tout d'abord déplacé en translation suivant la flèche A. Puis, les pinces de serrage 33 assurant le maintien des connexions, une électrode 34 est déplacée en direction des plages 26,29 et appliquée sur la face f des plages opposée au tore 5 , de manière à assurer la soudo-brasure de l'extrémité du conducteur sur la plage cuivréee dans l'axe Y du tore 5. L'utilisation d'un papillon de brasure au phosphore améliore l'efficacité de la soudure (meilleur tenue à l'arrachement).In order to overcome this drawback, the differential block B has on its face 21 adjoining the circuit breaker, a protective finger 32 extending parallel to the tripping finger 10 close to the latter, and intended to absorb the shocks exerted by direction of release finger 10.
The method of welding the conductors 6.8 on tracks 26 to 29, as illustrated in FIG. 4, is as follows: The torus 5 is first of all displaced in translation according to arrow A. Then, the clamps of tightening 33 ensuring the maintenance of the connections, an electrode 34 is moved in the direction of the pads 26, 29 and applied to the face f of the pads opposite to the core 5, so as to ensure the soldering of the end of the conductor on the pad coppered in the Y axis of the torus 5. The use of a phosphor soldering butterfly improves the efficiency of the weld (better resistance to tearing).

Selon la réalisation illustrée sur la figure 5 le (les) conducteur(s) précité(s) est (sont) soudé(s) en bout sur l'une 36a, dite première, des extrémités d'un (respectivement de plusieurs) conducteur(s) intermédiaire(s) 36 traversant le tore (T) dont la seconde extrémité 36b est reliée électriquement et mécaniquement à la plage correspondante 26 à 29. Cette réalisation, outre les avantages déjà décrits dans la réalisation précédemment décrite, permet de réduire encore davantage l'encombrement au-dessus du tore. Le procédé de mise en oeuvre du dispositif correspondant est le suivant. Le tore est enfilé autour des conducteur(s) intermédiaires(s) 36 solidarisés aux plages, en faisant coulisser le tore le long des conducteurs intermédiaires 36 en direction des plages 26 à 29, puis on réalise la soudure en bout des conducteurs sur les conducteurs intermédiaires 36.According to the embodiment illustrated in Figure 5 the aforementioned conductor (s) is (are) soldered at the end on one 36a, called the first, of the ends of one (respectively of several) intermediate conductor (s) 36 passing through the torus (T) the second end of which 36b is electrically and mechanically connected to the corresponding range 26 to 29. This embodiment, in addition to the advantages already described in the embodiment described above, reduces even more the space above the torus. The process for implementing the corresponding device is as follows. The torus is threaded around the conductor (s) intermediate (s) 36 secured to the pads, by sliding the torus along the conductors intermediates 36 in the direction of ranges 26 to 29, then the end welding of the conductors on the intermediate conductors 36.

Avantageusement, le(les) conducteur(s) intermédiaire(s) 36 est (sont) soudé(s) en bout sur la(les) plage(s).Advantageously, the intermediate conductor (s) 36 is (are) butt welded on the beach (s).

Selon une variante, la seconde extrémité 36b du(des) conducteur(s) intermédiaire(s) 36 est d'une seule pièce avec la (les) plages. According to a variant, the second end 36b of the intermediate conductor (s) 36 is in one piece with the range (s).

On notera que les conducteurs primaires 6 à 9 réalisés en fil de cuivre rigide, d'un diamètre de 6 mm, sont avantageusement revêtus d'un isolant de type époxy par exemple. On a donc réalisé grâce à l'invention un bloc différentiel B présentant un calibre élevé et un faible encombrement. Il est ainsi possible de réaliser une gamme de blocs différentiels auxiliarisés dont le calibre peut atteindre 125A sans augmenter l'encombrement par rapport aux blocs actuellement utilisés. Cette rigidité des connexions permet une association rapide et simple avec le disjoncteur rendant l'ensemble disjoncteur-différentiel plus compact, optimisant le raccordement des appareils du rail inférieur.Note that the primary conductors 6 to 9 made of rigid copper wire, with a diameter 6 mm, are advantageously coated with an epoxy type insulator for example. Thanks to the invention, therefore, a differential block B having a high caliber and small footprint. It is thus possible to produce a range of differential blocks Auxiliaries whose caliber can reach 125A without increasing the bulk compared to to the blocks currently in use. This rigidity of the connections allows rapid association and simple with the circuit breaker making the circuit breaker-differential assembly more compact, optimizing the connection of devices on the bottom rail.

On notera également que le revêtement Epoxy des conducteurs, par dépôt d'une peinture en poudre, assurera l'isolation des conducteurs entre eux et contribue à l'optimisation de la fenêtre intérieure du tore.It will also be noted that the epoxy coating of the conductors, by depositing a paint in powder, will insulate the conductors from each other and help optimize the inner window of the torus.

L'invention permet d'optimiser au maximum l'encombrement de la chaíne différentielle suivant l'axe du rail et ainsi de réaliser une gamme de 125A toutes sensibilités à propre courant y compris le 30mA, dans un encombrement réduit, par exemple dans une taille de 99mm de large. Ce type de liaison réduit au minimum les dimensions suivant l'axe Y en supprimant les opérations de cambrage des primaires après passage à travers le tore. Cette liaison réduit également le volume suivant les axes X et Z de par la densité de cuivre passée à travers la fenêtre du tore.The invention makes it possible to optimize the overall dimensions of the differential chain as much as possible. along the axis of the rail and thus achieve a range of 125A all sensitivities to own current including 30mA, in a small footprint, for example in a size of 99mm wide. This type of connection minimizes the dimensions along the Y axis by eliminating the operations of bending the primaries after passing through the torus. This bond also reduces the volume along the X and Z axes by the density of copper passed through the torus window.

Cet encombrement réduit permet de loger dans l'encombrement de l'appareil de base, des fonctions supplémentaires (en série ou en option).This reduced overall size makes it possible to accommodate in the overall dimensions of the basic device, additional functions (standard or optional).

Claims (21)

Dispositif de raccordement électrique d'un bloc différentiel sur un disjoncteur ou analogue, comprenant un certain nombre de conducteurs destinés à relier électriquement les bornes de sortie du disjoncteur aux bornes de sorties du bloc différentiel, lesdits conducteurs passant à travers le tore, caractérisé en ce qu'au moins l'un des conducteurs précités (6 à 9, 19) est un conducteur rigide à âme massive, ledit conducteur présentant une première extrémité (19a) reliée électriquement à la borne correspondante du disjoncteur et une seconde extrémité (19b) soudée en bout sur une plage de contact (26 à 29) reliée mécaniquement et électriquement à la borne de sortie correspondante du bloc différentiel.Device for electrical connection of a differential unit to a circuit breaker or the like, comprising a number of conductors intended to electrically connect the terminals output of the circuit breaker at the output terminals of the differential unit, said conductors passing through the torus, characterized in that at least one of the aforementioned conductors (6 to 9, 19) is a rigid conductor with a massive core, said conductor having a first end (19a) electrically connected to the corresponding terminal of the circuit breaker and a second end (19b) butt welded on a contact pad (26 to 29) connected mechanically and electrically to the corresponding output terminal of the differential unit. Dispositif selon la revendication 1, caractérisé en ce que le (les) conducteur(s) précité(s) est (sont) soudé(s) en bout sur l'une (36 a), dite première, des extrémités d'un (respectivement de plusieurs) conducteur(s) intermédiaire(s) (36) traversant le tore (T) dont la seconde extrémité (36b) est reliée électriquement et mécaniquement à la plage correspondante (26 à 29).Device according to claim 1, characterized in that the aforesaid conductor (s) is (are) butt welded on one (36 a), said first, of the ends of a (respectively of several) intermediate conductor (s) (36) passing through the torus (T), the second of which end (36b) is electrically and mechanically connected to the corresponding pad (26 to 29). Dispositif selon la revendication 2, caractérisé en ce que le(les) conducteur(s) intermédiaire(s) (36) est (sont) soudé(s) en bout sur la(les) plage(s).Device according to claim 2, characterized in that the conductor (s) intermediate (s) (36) is (are) welded (s) on the end (s) range (s). Dispositif selon l'une quelconque des revendications 2 ou 3, caractérisé en ce que la seconde extrémité (36b) du(des) conducteur(s) intermédiaire(s) (36) est d'une seule pièce avec la (les) plages.Device according to any one of claims 2 or 3, characterized in that the second end (36b) of the intermediate conductor (s) (36) is in one piece with the beach (s). Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le (ou les) conducteur(s) précités (6 à 9) et/ou conducteurs intermédiaires (36) est (sont) monobrin(s).Device according to any one of the preceding claims, characterized in that the (or the) aforementioned conductor (s) (6 to 9) and / or intermediate conductors (36) is (are) single strand (s). Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le (les) conducteur(s) précité(s) (6 à 9) et/ou conducteur(s) intermédiaire(s) est (sont) en cuivre.Device according to any one of the preceding claims, characterized in that the (the) conductor (s) mentioned above (6 to 9) and / or intermediate conductor (s) is (are) in copper. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le (les) conducteur(s) précité(s) (6 à 9,19) et/ou conducteurs intermédiaires (36) présente(ent) une section circulaire. Device according to any one of the preceding claims, characterized in that the (the) aforementioned conductor (s) (6 to 9.19) and / or intermediate conductors (36) present (s) a circular section. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les conducteurs (6 à 9) et/ou conducteurs intermédiaires (36) sont conformés de manière que la section de l'ensemble des conducteurs réunis soit sensiblement circulaire, ceci afin de minimiser leur encombrement à l'intérieur du tore.Device according to any one of the preceding claims, characterized in that the conductors (6 to 9) and / or intermediate conductors (36) are shaped so that the section of all the assembled conductors is substantially circular, in order to minimize their bulk inside the torus. Dispositif selon la revendication 8, caractérisé en ce que les appareils étant du type bipolaire, les conducteurs (6 à 9) et éventuellement conducteurs intermédiaires (36) sont au nombre de deux et présentent chacun une section semi-circulaire.Device according to claim 8, characterized in that the devices being of the type bipolar, the conductors (6 to 9) and possibly intermediate conductors (36) are at number two and each have a semi-circular section. Dispositif selon la revendication 8, caractérisé en ce que les appareils étant du type tétrapolaire, les conducteurs (6 à 9) et éventuellement les conducteurs intermédiaires (36) sont au nombre de quatre, chacun des conducteurs présentant une section en quart de cercle.Device according to claim 8, characterized in that the devices being of the type four-pole, conductors (6 to 9) and possibly intermediate conductors (36) are four in number, each of the conductors having a quarter section circle. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'à partir de leur entrée dans le tore (5), les conducteurs (6 à 9, 19) ou conducteurs intermédiaires(s) (36) s'étendent de manière rectiligne jusqu'aux plages (26 à 29).Device according to any one of the preceding claims, characterized in that from their entry into the torus (5), the conductors (6 to 9, 19) or conductors intermediate (s) (36) extend rectilinearly to the ranges (26 to 29). Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la seconde extrémité (19b) du (des) conducteur(s) (6 à 9) et/ou des conducteurs intermédiaires (36) est soudé-brasée sur la (les) plages correspondante(s) (26 à 29).Device according to any one of the preceding claims, characterized in that the second end (19b) of the conductor (s) (6 to 9) and / or of the conductors intermediates (36) is welded-brazed on the corresponding pad (s) (26 to 29). Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'entre leur deux extrémités, le (les ) conducteur(s) (6 à 9) ou conducteur(s) intermédiaire(s) est (sont) plié(s) quatre fois à angle droit.Device according to any one of the preceding claims, characterized in that that between their two ends, the conductor (s) (6 to 9) or conductor (s) intermediate (s) is (are) folded four times at right angles. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le(les) conducteur(s) précité(s) (6 à 9) et/ ou conducteurs intermédiaire(s) est (sont) recouvert(s) d'un revêtement isolant de type epoxy.Device according to any one of the preceding claims, characterized in that the aforementioned conductor (s) (6 to 9) and / or intermediate conductor (s) is (are) covered with an epoxy type insulating coating. Procédé de mise en oeuvre d'un dispositif selon la revendication 1, caractérisé en ce qu'il consiste à enfiler le tore (T) autour de la (des) seconde(s) extrémité(s) (19b) des conducteur (s), puis à faire coulisser ledit tore le long desdits conducteurs dans une direction opposée auxdites extrémités, puis à réaliser le soudage en bout desdites extrémités sur les plages.Method for using a device according to claim 1, characterized in that it consists in threading the torus (T) around the second end (s) (19b) of the conductors (s), then sliding said torus along said conductors in an opposite direction at said ends, then carrying out the end welding of said ends on the pads. Procédé de mise en oeuvre d'un dispositif selon la revendication 2, caractérisé en ce qu'il consiste à enfiler le tore (T) autour des conducteur(s) intermédiaires(s) (36) solidarisés aux plages, en faisant coulisser le tore le long des conducteurs intermédiaires (36) en direction des plages (26 à 29), puis à réaliser la soudure en bout des conducteurs sur les conducteurs intermédiaires (36).Method for using a device according to claim 2, characterized in that it consists in threading the torus (T) around the intermediate conductor (s) (36) secured to the tracks, by sliding the torus along the intermediate conductors (36) in the direction pads (26 to 29), then to carry out the end welding of the conductors on the conductors intermediates (36). Bloc différentiel comportant un dispositif de raccordement selon l'une quelconque des revendications 1 à 14.Differential unit comprising a connection device according to any one of claims 1 to 14. Bloc différentiel selon la revendication 17, caractérisé en ce qu'il comporte au moins un module auxiliaire (3,4) enfichable sur la face d'entrée (24) du boítier du bloc différentiel, de part et d'autre du tore (5).Differential unit according to claim 17, characterized in that it comprises at least one auxiliary module (3,4) pluggable on the input face (24) of the differential block housing, on either side of the torus (5). Bloc différentiel selon la revendication 18, caractérisé en ce que ces modules auxiliaires (3,4) comprennent un auxiliaire de signalisation du défaut et/ou un module d'ouverture à distance, et/ou un module de signalisation du courant de fuite.Differential unit according to claim 18, characterized in that these auxiliary modules (3,4) include a fault signaling auxiliary and / or an opening module to distance, and / or a leakage current signaling module. Bloc différentiel selon l'une quelconque des revendications 17 à 19, comportant un doigt de déclenchement (10) s'étendant en saillie sur la face (21) dudit bloc (B) destinée à être accolée au disjoncteur, caractérisé en ce qu'il comporte un doigt de protection (32) s'étendant sensiblement parallèlement audit doigt de déclenchement (10) sur une longueur légèrement supérieure à celle dudit doigt (10) et destiné à encaisser les chocs à la place du doigt de déclenchement (10).Differential unit according to any one of claims 17 to 19, comprising a finger trigger (10) projecting from the face (21) of said block (B) intended to be attached to the circuit breaker, characterized in that it includes a protective finger (32) extending substantially parallel to said trigger finger (10) over a length slightly greater than that of said finger (10) and intended to absorb shocks in place of the release finger (10). Bloc différentiel selon l'une quelconque des revendications 17 à 20, caractérisé en ce que la gamme du bloc différentiel B est une gamme 125 A toutes sensibilités à propre courant y compris le 30 mA.Differential unit according to any one of claims 17 to 20, characterized in that the range of differential block B is a 125 A range with all sensitivities at own current y including 30 mA.
EP19980410139 1997-12-18 1998-12-08 Differential unit and electrical connection device of the differential unit to a circuit breaker Expired - Lifetime EP0926695B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9716422A FR2772979B1 (en) 1997-12-18 1997-12-18 DEVICE FOR ELECTRICALLY CONNECTING A DIFFERENTIAL BLOCK ON A CIRCUIT BREAKER OR THE LIKE AND DIFFERENTIAL BLOCK EQUIPPED WITH SUCH A DEVICE
FR9716422 1997-12-18

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EP0926695A1 true EP0926695A1 (en) 1999-06-30
EP0926695B1 EP0926695B1 (en) 2006-08-30

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CN (1) CN1202544C (en)
AR (1) AR014141A1 (en)
BR (1) BR9805417B1 (en)
DE (1) DE69835730T2 (en)
EA (1) EA002287B1 (en)
EG (1) EG21099A (en)
ES (1) ES2268758T3 (en)
FR (1) FR2772979B1 (en)
ID (1) ID21589A (en)
TR (1) TR199802642A2 (en)
ZA (1) ZA9811497B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1450440A1 (en) * 2003-02-21 2004-08-25 Hager Electro S.A.S. Electrical connection device more particularly between a breaker and a differential unit
EP1710824A1 (en) * 2005-04-07 2006-10-11 Condor-Werke Gebr. Frede GmbH & Co. KG Protective switch
FR2902924A1 (en) * 2006-06-26 2007-12-28 Schneider Electric Ind Sas Modular electrical device i.e. monoblock modular tetra polar differential circuit breaker, for protecting electrical installation, has differential module and bipolar outage modules connected to each other at final assembling of device
CN108574160A (en) * 2018-06-01 2018-09-25 浙江中凯科技股份有限公司 A kind of electric installation of control and protective switching device
EP3470853A1 (en) * 2017-10-16 2019-04-17 Schneider Electric Industries SAS Current measuring device, method of manufacture, protection module and differential circuit breaker using such a current measuring device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3109884B1 (en) * 2014-02-17 2019-03-27 Fuji Electric Fa Components & Systems Co., Ltd. Leakage current detection unit and leakage current breaker
FR3069718B1 (en) * 2017-07-25 2019-08-09 Schneider Electric Industries Sas DIFFERENTIAL ELECTRICAL PROTECTION APPARATUS

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2581264A1 (en) * 1985-04-26 1986-10-31 Etude Realisa Disjoncteurs Summing current transformer for one or three=phase circuit protection
EP0611224A1 (en) * 1993-02-09 1994-08-17 Schneider Electric Sa Differential protection unit with functionally testable sub-assembly
EP0806784A2 (en) * 1996-05-07 1997-11-12 Felten & Guilleaume Austria Ag Switchgear with movable connection lines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2581264A1 (en) * 1985-04-26 1986-10-31 Etude Realisa Disjoncteurs Summing current transformer for one or three=phase circuit protection
EP0611224A1 (en) * 1993-02-09 1994-08-17 Schneider Electric Sa Differential protection unit with functionally testable sub-assembly
EP0806784A2 (en) * 1996-05-07 1997-11-12 Felten & Guilleaume Austria Ag Switchgear with movable connection lines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1450440A1 (en) * 2003-02-21 2004-08-25 Hager Electro S.A.S. Electrical connection device more particularly between a breaker and a differential unit
EP1710824A1 (en) * 2005-04-07 2006-10-11 Condor-Werke Gebr. Frede GmbH & Co. KG Protective switch
FR2902924A1 (en) * 2006-06-26 2007-12-28 Schneider Electric Ind Sas Modular electrical device i.e. monoblock modular tetra polar differential circuit breaker, for protecting electrical installation, has differential module and bipolar outage modules connected to each other at final assembling of device
EP1873808A1 (en) * 2006-06-26 2008-01-02 Schneider Electric Industries Sas Modular electrical device providing at least two electrical functions, such as a differential circuit breaker
EP3470853A1 (en) * 2017-10-16 2019-04-17 Schneider Electric Industries SAS Current measuring device, method of manufacture, protection module and differential circuit breaker using such a current measuring device
FR3072462A1 (en) * 2017-10-16 2019-04-19 Schneider Electric Industries Sas CURRENT MEASURING DEVICE, MANUFACTURING METHOD, PROTECTION MODULE, AND DIFFERENTIAL CIRCUIT BREAKER USING SUCH CURRENT MEASURING DEVICE
US10712372B2 (en) 2017-10-16 2020-07-14 Schneider Electric Industries Sas Current measurement device, manufacturing method, protection module and differential circuit breaker including such a device
CN108574160A (en) * 2018-06-01 2018-09-25 浙江中凯科技股份有限公司 A kind of electric installation of control and protective switching device

Also Published As

Publication number Publication date
EA199801021A3 (en) 1999-12-29
TR199802642A3 (en) 1999-10-21
BR9805417A (en) 1999-11-23
CN1224228A (en) 1999-07-28
AR014141A1 (en) 2001-02-07
CN1202544C (en) 2005-05-18
EA199801021A2 (en) 1999-08-26
TR199802642A2 (en) 1999-10-21
EG21099A (en) 2000-11-29
FR2772979B1 (en) 2002-09-20
DE69835730T2 (en) 2007-09-06
DE69835730D1 (en) 2006-10-12
FR2772979A1 (en) 1999-06-25
EA002287B1 (en) 2002-02-28
BR9805417B1 (en) 2012-10-02
ID21589A (en) 1999-06-24
ZA9811497B (en) 1999-06-18
ES2268758T3 (en) 2007-03-16
EP0926695B1 (en) 2006-08-30

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