EP0099786A1 - Two-phase differential circuit breaker - Google Patents

Two-phase differential circuit breaker Download PDF

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Publication number
EP0099786A1
EP0099786A1 EP83401327A EP83401327A EP0099786A1 EP 0099786 A1 EP0099786 A1 EP 0099786A1 EP 83401327 A EP83401327 A EP 83401327A EP 83401327 A EP83401327 A EP 83401327A EP 0099786 A1 EP0099786 A1 EP 0099786A1
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EP
European Patent Office
Prior art keywords
plate
differential
differential transformer
contact system
terminals
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
EP83401327A
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German (de)
French (fr)
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EP0099786B1 (en
Inventor
Michel Bonniau
Jacques Servant
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Merlin Gerin SA
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Merlin Gerin SA
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Publication date
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Publication of EP0099786A1 publication Critical patent/EP0099786A1/en
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Publication of EP0099786B1 publication Critical patent/EP0099786B1/en
Expired legal-status Critical Current

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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
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker

Definitions

  • a known differential switch of the kind mentioned is described with reference to Figures 10 to 13 of French patent No. 2,475,291 of the applicant.
  • This device is derived from a four-pole version from which the electrical contact and connection elements of two poles have been eliminated.
  • the insulating bolt and the mechanism are standard for both four-pole and two-pole versions. This results in poor optimization of the bipolar version, which also has a large transverse size.
  • the object of the invention is to remedy these drawbacks and to allow the production of a bipolar differential switch with a compact structure suitable for a reduced bulk of the housing.
  • the switch according to the invention is characterized in that the operating mechanism is housed between a first and a second fixed plates extending at the same time parallel to the longitudinal direction of alignment of the terminals of each pole, and perpendicular to the front face of the box, the first plate constituting the main support of the self-supporting structure of the electromechanical block, and that the contact system and the differential transformer are arranged on the same side of said first plate, and at different levels in the direction perpendicular to the front face, the operating mechanism and the tripping relay being respectively juxtaposed transversely with the contact system of the upper level, and with the transformer lower level differential.
  • the second plate is shorter than the first plate of the mechanism, the latter being advantageously provided with an extension extending in the direction of the depth of the case up to the vicinity of the support base opposite the front face. . This extension serves as a support for the trip relay.
  • the compact arrangement of the functional electromechanical block with self-supporting structure allows a significant reduction in the width of the box and facilitates the insertion of the preassembled block in the box with two parts mounted to interlocking.
  • FIGS. 1 to 9 show a bipolar differential switch 10 at: low voltage, used in a single-phase alternating network with neutral.
  • the switch 10 is housed in a rectangular housing 12 made of molded insulating material, formed by the assembly of two parts 14, 16 anterior and posterior.
  • the rear part 16 of the housing 12 (FIGS. 5 and 6) has a U-shaped profile, the base of which is provided on the outside with a base 18 for snap-fastening to a support rail (not shown).
  • the internal face 19 of the base serves as a support for the functional electromechanical block 20 (FIGS. 3 and 4) associated with two pairs of connection terminals 22, 24 of the neutral and of the phase.
  • the front part 14 of the housing 12 (FIGS. 1 and 2) comprises a cover 26 fitted to interlock on the opposite wings 28, 30 of the U of the other part 16.
  • the face 19 of the rear part 16 is equipped with two guide pins 32 which engage vertically in notches 34 conjugate of the cover 16 to ensure the correct positioning of the two parts 14, 16 during assembly of the housing 12.
  • the latter also has holes 36 aligned for the 'introduction of fixing means (screws or rivets) of the two parts 14, 16.
  • the front face 38 of the cover 26 is pierced with two openings for passage of the handle 40 of the operating mechanism 42, and of the test button 44 of the test switch 46.
  • Sockets 48 are provided at the four corners of the front part 14 for housing the terminals 22, 24 for connecting the neutral and the phase, the two sockets 48 located on the same side being isolated of the internal volume 49 of the cover 26 by a common intermediate wall 50 extending transversely over the entire width of the housing 12.
  • Each opening 48 is associated with an orifice 52 in the housing 12 for access to the screw 54 for tightening the corresponding terminal 22, 24.
  • the functional electromechanical unit 20 (fig. 3, 4, 8 and 9) comprises a self-supporting structure grouping together the various constituent elements of the differential switch 10.
  • the operating mechanism 42 is arranged between two fixed plates 56, 58 parallel to the direction longitudinal alignment of the input 24 and output 22 terminals of each pole, one 56 of the plates being extended downward to abut against the bearing face 19 of the housing.
  • the other plate 58 is lower than the plate 56 and carries on its external face an insulating support 60 provided with the test switch 46 and a resistor 62 electrically connected in the test circuit.
  • the switch 46 is formed by a spiral spring 63 threaded on a stud 64 of the support 60, and with a free end cooperating elastically with the test button 44.
  • the resistor 62 is inserted into a cylindrical housing 66 of the support 60 and has a conductor 68 of folded connection serving as fixed contact to the test switch 46.
  • the closing of the test switch 46 is controlled by depressing the test button 44 which connects the resistor 62 so as to simulate an artificial fault and check the correct operation of the differential protection.
  • the test button 44 and the support 60 of the switch 46 are located in the longitudinal plane corresponding to the movement of the lever 40, which is pivotally mounted on an axis 70 perpendicular to the two plates 56, 58.
  • a polarized relay 72 with a trigger coil 74 and a movable paddle 76 cooperating with a latch 78 for triggering the mechanism 42.
  • the latter further comprises an automatic reset lever 80 for the paddle 76 during the opening of the switch 10.
  • the relay 72 extends longitudinally in the lower interval separating the terminals 22, 24 from one of the poles, and is secured to the central plate 56 by suitable fixing means.
  • a differential transformer 82 with toroidal core extends longitudinally between the terminals 22, 24 for connection of the other pole while being juxtaposed by its internal front face to the relay 72 with interposition of the plate 56.;
  • the core of the transformer 82 is traversed in the width direction by primary windings 84 electrically connected to a contact block 86 and to the output terminals 22 of the phase and the neutral.
  • the differential transformer 82 includes a secondary winding electrically connected to the trip coil 74 of the polarized relay 72.
  • the contact block 86 is arranged above the differential transformer 82 in the upper part of the cover 26, and is attached to the plate 56 opposite the mechanism 42.
  • the block 86 contains two movable contacts secured to a coupled slide to mechanism 42 for opening and closing the phase and neutral contacts.
  • the contact block 86 and the transformation t differential eur 82 are located on the same side of the platen 56 and at different levels, being respectively transversely juxtaposed with the actuating mechanism 42 of the upper level and the relay polarized 72 from the lower level.
  • This compact arrangement makes it possible to significantly reduce the width of the housing 12, and the four connection terminals 22, 24 lie in a plane perpendicular to the plate 56.
  • the latter is the main element of the self-supporting structure of the electromechanical block 20 of the bipolar switch 10, and extends substantially in the median plane separating the terminals 22, 24 of each pole
  • the assembly of the electromechanical block 20 takes place outside the insulating housing 12.
  • the mounting of the various constituent elements of the switch on either side of the self-supporting plate 56 is followed by the welding of the connection conductors to the four terminals 22, 24 of the phase and of the neutral.
  • the mounted block 20 is then positioned on the support base 19 of the. rear part 16, and the housing 12 is then closed by placing the front part 14 during which the terminals 22, 24 fit into the corresponding cells 48 of the cover 26.

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

Abstract

1. Two-phase differential circuit breaker for a low-voltage alternating current network with a moulded insulating housing (12) comprising : - a differential transformer (82) with a ring core comprising primary windings constituted by phase and neutral conductors of the network, and a secondary winding generating a trip signal when an earth fault appears, - a contact system (86) to interrup the phase and neutral circuit in the open position of the contacts, - an actuating mechanism (42) of the contacts, comprising a lever (40) for manual operation and an automatic trip device when a faut occurs, - a control relay (72) of the trip device actuated by the trip signal of the secondary winding of the differential transformer and associated to the lock (78) of the mechanism (42), - and a pair of connection terminals (22, 24) per pole, characterized by the fact that the actuating mechanism (42) is arranged between a first and a second stationary plate (56, 58) extending in the same time parallelly to the lengthwise aligned direction of the terminals (22, 24) of each pole and perpendicularly to the front side of the housing (12), the first plate (56) constituting the main support of the self-bearing structure of the electromechanic assembly (20), and that the contact system (86) and the differential transformer (82) are arranged on the same side of said first palte (56), and on different levels according to the direction perpendicular to the front side, the actuating mechanism (42) and the trip relay (72) being respectively crosswise juxtaposed with the contact system (86) of the upper lever, and with the differential transformer (82) of the lower level.

Description

L'invention est relative à un interrupteur différentiel bipolaire pour réseau àlternatif à basse tension et à bol- tier isolant moulé renfermant :

  • - un transformateur différentiel à noyau torique comportant des enroulements primaires constitués par les conducteurs de phase et de neutre du réseau, et un enroulement secondaire engendrant un signal de déclenchement lors d'un défaut à la terre,
  • - un système de contacts pour interrompre le circuit de la phase et du neutre en position d'ouverture des contacts,
  • - un mécanisme de manoeuvre des contacts, comprenant une manette de commande manuelle et un dispositif de déclenchement automatique sur défaut,
  • - un relais de commande du dispositif de déclenchement piloté par le signal de déclenchement de l'enroulement secondaire du transformateur différentiel et associé à un verrou du mécanisme,
  • - et une paire de bornes de connexion par pôle.
The invention relates to a bipolar differential switch for a low-voltage alternating network and to a molded insulating bowl containing:
  • - a differential transformer with toroidal core comprising primary windings constituted by the phase and neutral conductors of the network, and a secondary winding generating a tripping signal in the event of an earth fault,
  • - a contact system to interrupt the phase and neutral circuit in the contact opening position,
  • - a mechanism for operating the contacts, comprising a manual control lever and an automatic tripping device on fault,
  • - a control relay for the triggering device controlled by the trigger signal for the secondary winding of the differential transformer and associated with a mechanism lock,
  • - and a pair of connection terminals per pole.

Un interrupteur différentiel connu du genre mentionné est décrit en référence aux figures 10 à 13 du brevet français N° 2.475.291 de la demanderesse. Cet appareil dérive d'une version tétrapolaire dont on a supprimé les organes électriques de contact et de connexion de deux pôles. Le bol- tier isolant et le mécanisme sont standard pour les deux versions tétrapolaire et bipolaire. Il en résulte une mauvaise optimisation de la version bipolaire, qui présente en outre un encombrement transversal important.A known differential switch of the kind mentioned is described with reference to Figures 10 to 13 of French patent No. 2,475,291 of the applicant. This device is derived from a four-pole version from which the electrical contact and connection elements of two poles have been eliminated. The insulating bolt and the mechanism are standard for both four-pole and two-pole versions. This results in poor optimization of the bipolar version, which also has a large transverse size.

L'invention a pour but de remédier à ces inconvénients et de permettre la réalisation d'un interrupteur différentiel bipolaire à structure compacte appropriée à un encombrement réduit du boîtier.The object of the invention is to remedy these drawbacks and to allow the production of a bipolar differential switch with a compact structure suitable for a reduced bulk of the housing.

L'interrupteur selon l'invention est caractérisé par le fait que le mécanisme de manoeuvre est logé entre une première et une deuxième platines fixes s'étendant à la fois parallèlement à la direction longitudinale d'alignement des bornes de chaque pôle, et perpendiculairement à la face avant du boitier, la première platine constituant le support principal de la structure autoporteuse du bloc électromécanique, et que le système de contacts et le transformateur différentiel sont agencés d'un même côté de ladite première platine, et à des niveaux différents selon la direction perpendiculaire à la face avant, le mécanisme de manoeuvre et le relais de déclenchement étant respectivement juxtaposés transversalement avec le système de contacts du niveau supérieur, et avec le transformateur différentiel du niveau inférieur. La deuxième platine est plus courte que la première platine du mécanisme, cette dernière étant avantageusement dotée d'une extension se prolongeant dans le sens de la profondeur du boitier jusqu'au voisinage de la base d'appui à l'opposé de la face avant. Cette extension sert de support au relais de déclenchement.The switch according to the invention is characterized in that the operating mechanism is housed between a first and a second fixed plates extending at the same time parallel to the longitudinal direction of alignment of the terminals of each pole, and perpendicular to the front face of the box, the first plate constituting the main support of the self-supporting structure of the electromechanical block, and that the contact system and the differential transformer are arranged on the same side of said first plate, and at different levels in the direction perpendicular to the front face, the operating mechanism and the tripping relay being respectively juxtaposed transversely with the contact system of the upper level, and with the transformer lower level differential. The second plate is shorter than the first plate of the mechanism, the latter being advantageously provided with an extension extending in the direction of the depth of the case up to the vicinity of the support base opposite the front face. . This extension serves as a support for the trip relay.

On remarque que la disposition compacte du bloc électromécanique fonctionnel à structure autoporteuse permet une réduction notable de la largeur du boitier et facilite l'insertion du bloc préassemblé dans le boîtier à deux parties montées à emboîtement.It is noted that the compact arrangement of the functional electromechanical block with self-supporting structure allows a significant reduction in the width of the box and facilitates the insertion of the preassembled block in the box with two parts mounted to interlocking.

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

  • la figure 1 est une vue en coupe selon la ligne I-I de la fig. 7, représentant la partie antérieure du boîtier de l'interrupteur selon l'invention;
  • la figure 2 montre une vue de profil de la fig. 1;
  • les figures 3 et 4 représentent respectivement des vues en élévation et de profil du bloc électromécanique de l'interrupteur après enlèvement du boîtier;
  • la figure 5 est une vue en coupe selon la ligne V-V de la fig. 6 de la partie postérieure du boîtier;
  • la figure 6 est une vue de profil de la fig. 5;
  • la figure 7 est une vue en plan de la fig. 1;
  • les figures 8 et 9 montrent respectivement des vues de dessus et de dessous de la fig. 3.
Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention, given by way of nonlimiting example and represented in the appended drawings, in which:
  • Figure 1 is a sectional view along line II of FIG. 7, showing the front part of the switch housing according to the invention;
  • FIG. 2 shows a profile view of FIG. 1;
  • Figures 3 and 4 respectively show elevation and side views of the electromechanical block of the switch after removal of the housing;
  • Figure 5 is a sectional view along line VV of FIG. 6 of the rear part of the housing;
  • FIG. 6 is a side view of FIG. 5;
  • FIG. 7 is a plan view of FIG. 1;
  • FIGS. 8 and 9 respectively show views from above and from below of FIG. 3.

Sur les figures 1 à 9, est représenté un interrupteur 10 différentiel bipolaire à:basse tension, utilisé dans un réseau alternatif monophasé avec neutre. L'interrupteur 10 est logé dans un boîtier 12 parallélépipédique en matériau Isolant moulé, formé par l'assemblage de deux parties 14, 16 antérieure et postérieure.FIGS. 1 to 9 show a bipolar differential switch 10 at: low voltage, used in a single-phase alternating network with neutral. The switch 10 is housed in a rectangular housing 12 made of molded insulating material, formed by the assembly of two parts 14, 16 anterior and posterior.

La partie postérieure 16 du boîtier 12 (fig. 5 et 6) présente un profil en U dont la base est dotée à l'extérieur d'un socle 18 de fixation par encliquetage à un rail support (non représenté). La face Interne 19 de la base sert d'appui au bloc électromécanique fonctionnel 20 (fig. 3 et 4) associé à deux paires de bornes de raccordement 22, 24 du neutre et de la phase.The rear part 16 of the housing 12 (FIGS. 5 and 6) has a U-shaped profile, the base of which is provided on the outside with a base 18 for snap-fastening to a support rail (not shown). The internal face 19 of the base serves as a support for the functional electromechanical block 20 (FIGS. 3 and 4) associated with two pairs of connection terminals 22, 24 of the neutral and of the phase.

La partie antérieure 14 du boîtier 12 (fig. 1 et 2) comprend un capot 26 monté à emboîtement sur les ailes 28, 30 parallèles opposées du U de l'autre partie 16. La face 19 de la partie 16 postérieure est équipée de deux tenons 32 de guidage qui s'engagent verticalement dans des encoches 34 conjuguées du capot 16 pour assurer le positionnement correct des deux parties 14, 16 lors de l'assemblage du boîtier 12. Ce dernier comporte d'autre part des trous 36 alignés pour l'introduction de moyens de fixation (vis ou rivets) des deux parties 14, 16. La face avant 38 du capot 26 est percée de deux ouvertures de passage de la manette 40 du mécanisme de manoeuvre 42, et du bouton test 44 de l'interrupteur d'essai 46. Des alvéoles 48 sont prévus aux quatre coins de la partie antérieure 14 pour le logement des bornes 22, 24 de raccordement du neutre et de la phase, les deux alvéoles 48 situés d'un même côté étant isolés du volume interne 49 du capot 26 par une paroi intercalaire 50 commune s'étendant transversalement sur toute la largeur du boîtier 12. A chaque alvéole 48 est associé un orifice 52 dans le boîtier 12 pour l'accès à la vis 54 de serrage de la borne 22, 24 correspondante.The front part 14 of the housing 12 (FIGS. 1 and 2) comprises a cover 26 fitted to interlock on the opposite wings 28, 30 of the U of the other part 16. The face 19 of the rear part 16 is equipped with two guide pins 32 which engage vertically in notches 34 conjugate of the cover 16 to ensure the correct positioning of the two parts 14, 16 during assembly of the housing 12. The latter also has holes 36 aligned for the 'introduction of fixing means (screws or rivets) of the two parts 14, 16. The front face 38 of the cover 26 is pierced with two openings for passage of the handle 40 of the operating mechanism 42, and of the test button 44 of the test switch 46. Sockets 48 are provided at the four corners of the front part 14 for housing the terminals 22, 24 for connecting the neutral and the phase, the two sockets 48 located on the same side being isolated of the internal volume 49 of the cover 26 by a common intermediate wall 50 extending transversely over the entire width of the housing 12. Each opening 48 is associated with an orifice 52 in the housing 12 for access to the screw 54 for tightening the corresponding terminal 22, 24.

Le bloc électromécanique fonctionnel 20 (fig. 3, 4, 8 et 9) comporte une structure autoporteuse regroupant les différents organes constitutifs de l'interrupteur différentiel 10. Le mécanisme de manoeuvre 42 est agencé entre deux platines 56, 58 fixes parallèles à la direction longitudinale d'alignement des bornes d'entrée 24 et de sortie 22 de chaque pôle, l'une 56 des platines étant prolongée vers le bas pour venir en butée contre la face d'appui 19 du boîtier. L'autre platine 58 est moins haute que la platine 56 et porte sur sa face externe un support 60 isolant pourvu de l'interrupteur d'essai 46 et d'une résistance 62 connectés électriquement dans le circuit test. L'interrupteur 46 est formé par un ressort spirale 63 enfilé sur un téton 64 du support 60, et à extrémité libre coopérant élastiquement avec le bouton test 44. La résistance 62 est Insérée dans un logement 66 cylindrique du support 60 et présente un conducteur 68 de branchement replié servant de contact fixe à l'interrupteur d'essai 46. La fermeture de l'interrupteur d'essai 46 est commandée par l'enfoncement du bouton test 44 qui connecte la résistance 62 de manière à simuler un défaut artificiel et à vérifier le bon fonctionnement de la protection différentielle.The functional electromechanical unit 20 (fig. 3, 4, 8 and 9) comprises a self-supporting structure grouping together the various constituent elements of the differential switch 10. The operating mechanism 42 is arranged between two fixed plates 56, 58 parallel to the direction longitudinal alignment of the input 24 and output 22 terminals of each pole, one 56 of the plates being extended downward to abut against the bearing face 19 of the housing. The other plate 58 is lower than the plate 56 and carries on its external face an insulating support 60 provided with the test switch 46 and a resistor 62 electrically connected in the test circuit. The switch 46 is formed by a spiral spring 63 threaded on a stud 64 of the support 60, and with a free end cooperating elastically with the test button 44. The resistor 62 is inserted into a cylindrical housing 66 of the support 60 and has a conductor 68 of folded connection serving as fixed contact to the test switch 46. The closing of the test switch 46 is controlled by depressing the test button 44 which connects the resistor 62 so as to simulate an artificial fault and check the correct operation of the differential protection.

Le bouton test 44 et le support 60 de l'interrupteur 46 sont situés dans le plan longitudinal correspondant au débattement de la manette 40, laquelle est montée à pivotement limité sur un axe 70 perpendiculaire aux deux platines 56, 58. Sous le mécanisme 42 et le support 60 est agencé un relais polarisé 72 à bobine 74 de déclenchement et à palette 76 mobile coopérant avec un verrou 78 de déclenchement du mécanisme 42. Ce dernier comporte de plus un levier de réarmement 80 automatique de la palette 76 lors de l'ouverture de l'interrupteur 10. Le relais 72 s'étend longitudinalement dans l'intervalle inférieur séparant les bornes 22, 24 de l'un des pôles, et est solidarisé à la platine 56 médiane par des moyens de fixation appropriés.The test button 44 and the support 60 of the switch 46 are located in the longitudinal plane corresponding to the movement of the lever 40, which is pivotally mounted on an axis 70 perpendicular to the two plates 56, 58. Under the mechanism 42 and the support 60 is arranged a polarized relay 72 with a trigger coil 74 and a movable paddle 76 cooperating with a latch 78 for triggering the mechanism 42. The latter further comprises an automatic reset lever 80 for the paddle 76 during the opening of the switch 10. The relay 72 extends longitudinally in the lower interval separating the terminals 22, 24 from one of the poles, and is secured to the central plate 56 by suitable fixing means.

Un transformateur différentiel 82 à noyau torique s'étend longitudinalement entre les bornes 22, 24 de branchement de l'autre pôle en étant juxtaposé par sa face frontale interne au relais 72 avec interposition de la platine 56. ; Le noyau du transformateur 82 est traversé dans le sens de la largeur par des enroulements primaires 84 raccordés électriquement à un bloc de contacts 86 et aux bornes de sortie 22 de la phase et du neutre. Le transformateur différentiel 82 comprend un enroulement secondaire connecté électriquement à la bobine de déclenchement 74 du relais polarisé 72. Lors de l'apparition d'un courant de défaut à la terre, le transformateur différentiel applique un signal de commande au relais polarisé 72, qui provoque, après dépassement d'un seuil prédéterminé, le déverrouillage du verrou 78 de déclenchement du mécanisme 42 et l'ouverture des contacts du bloc 86.A differential transformer 82 with toroidal core extends longitudinally between the terminals 22, 24 for connection of the other pole while being juxtaposed by its internal front face to the relay 72 with interposition of the plate 56.; The core of the transformer 82 is traversed in the width direction by primary windings 84 electrically connected to a contact block 86 and to the output terminals 22 of the phase and the neutral. The differential transformer 82 includes a secondary winding electrically connected to the trip coil 74 of the polarized relay 72. When an earth fault current occurs, the differential transformer applies a control signal to the polarized relay 72, which causes, after exceeding a predetermined threshold, the unlocking of the latch 78 for triggering the mechanism 42 and the opening of the contacts of the block 86.

Le bloc de contacts 86 est disposé au-dessus du transformateur différentiel 82 dans la partie supérieure du capot 26, et est accolé à la platine 56 à l'opposé du mécanisme 42. Le bloc 86 renferme deux contacts mobiles solidaires d'un coulisseau accouplé au mécanisme 42 pour l'ouverture et la fermeture des contacts de la phase et du neutre.The contact block 86 is arranged above the differential transformer 82 in the upper part of the cover 26, and is attached to the plate 56 opposite the mechanism 42. The block 86 contains two movable contacts secured to a coupled slide to mechanism 42 for opening and closing the phase and neutral contacts.

On remarque que le bloc de contacts 86 et le transforma- teur différentiel 82 sont situés d'un même côté de la platine 56 et à des niveaux différents, en étant juxtaposés transversalement respectivement avec le mécanisme de manoeuvre 42 du niveau supérieur et le relais polarisé 72 du niveau inférieur. Cette disposition compacte;permet de réduire notablement la largeur du boitiér 12, et les quatre bornes de branchement 22,24 se trouvent dans un plan perpendiculaire à la platine 56. Cette dernière est l'élément principal de la structure autoporteuse du bloc électromécanique 20 de l'interrupteur 10 bipolaire, et s'étend sensiblement dans le plan médian séparant les bornes 22,24 de chaque pôle L'assemblage du bloc électromécanique 20 s'opère à l'extérieur du boîtier 12 isolant. Le montage des différents organes constitutifs de l'interrupteur de part et d'autre de la platine 56 autoporteuse est suivi du soudage des conducteurs de raccordement aux quatre bornes 22, 24 de la phase et du neutre. Le bloc 20 monté est ensuite positionné sur la base d'appui 19 de la. partie postérieure 16, et la fermeture du boîtier 12 s'effectue ensuite par la mise en place de la partie antérieure 14 durant laquelle les bornes 22, 24 s'emboîtent dans les alvéoles 48 correspondants du capot 26.It is noted that the contact block 86 and the transformation t differential eur 82 are located on the same side of the platen 56 and at different levels, being respectively transversely juxtaposed with the actuating mechanism 42 of the upper level and the relay polarized 72 from the lower level. This compact arrangement makes it possible to significantly reduce the width of the housing 12, and the four connection terminals 22, 24 lie in a plane perpendicular to the plate 56. The latter is the main element of the self-supporting structure of the electromechanical block 20 of the bipolar switch 10, and extends substantially in the median plane separating the terminals 22, 24 of each pole The assembly of the electromechanical block 20 takes place outside the insulating housing 12. The mounting of the various constituent elements of the switch on either side of the self-supporting plate 56 is followed by the welding of the connection conductors to the four terminals 22, 24 of the phase and of the neutral. The mounted block 20 is then positioned on the support base 19 of the. rear part 16, and the housing 12 is then closed by placing the front part 14 during which the terminals 22, 24 fit into the corresponding cells 48 of the cover 26.

L'invention n'est bien entendu nullement limitée au mode de mise en oeuvre plus particulièrement décrit et représenté aux dessins annexés, mais elle s'étend bien au contraire à toute variante restant dans le cadre des équivalences électrotechniques.The invention is of course by no means limited to the mode of implementation more particularly described and shown in the accompanying drawings, but it extends quite the contrary to any variant remaining within the framework of electrotechnical equivalences.

Claims (6)

1. Interrupteur différentiel bipolaire pour réseau alternatif à basse tension et à bottier (12) isolant moulé renfermant : - un transformateur différentiel (82) à noyau torique comportant des enroulements primaires constitués par les conducteurs de phase et de neutre du réseau, et un enroulement secondaire engendrant un signal de déclenchement lors d'un défaut à la terre, - un système de contacts (86) pour interrompre le circuit de la phase et du neutre en position d'ouverture des contacts, - un mécanisme de manoeuvre (42) des contacts, comprenant une manette (40) de commande manuelle et un dispositif de déclenchement automatique sur défaut, - un relais (72) de commande du dispositif de déclenchement piloté par le signal de déclenchement de l'enroulement secondaire du transformateur différentiel et associé à un verrou (78) du mécanisme (42), - et une paire de bornes de connexion (22, 24) par pôle, caractérisé par le fait que le mécanisme de manoeuvre (42) est logé entre une première et une deuxième platines (56,58) fixes s'étendant à la fois parallèlement à la direction longitudinale d'alignement des bornes (22,24) de chaque pôle, et perpendiculairement à la face avant du bottier (12), la première platine (56) constituant le support principal de la structure autoporteuse du bloc électromécanique (20), et que le système de contacts (86) .et le transformateur différentiel (82) sont agencés d'un même côté de ladite première platine (56), et à des niveaux différents selon la direction perpendiculaire à la face avant, le mécanisme de manoeuvre (42) et le relais (72) de déclenchement étant respectivement juxtaposés transversalement avec le système de contacts (86) du niveau supérieur, et avec le transformateur différentiel (82) du niveau inférieur. 1. Bipolar differential switch for low-voltage alternating network and shoestring (12) molded insulation containing: - a differential transformer (82) with toroidal core comprising primary windings constituted by the phase and neutral conductors of the network, and a secondary winding generating a tripping signal in the event of an earth fault, - a contact system (86) to interrupt the phase and neutral circuit in the contact open position, - an operating mechanism (42) for the contacts, comprising a manual control lever (40) and an automatic tripping device on fault, a relay (72) for controlling the triggering device controlled by the trigger signal for the secondary winding of the differential transformer and associated with a latch (78) of the mechanism (42), - And a pair of connection terminals (22, 24) per pole, characterized in that the operating mechanism (42) is housed between a first and a second fixed plates (56,58) extending both parallel to the longitudinal direction of alignment of the terminals (22,24) of each pole, and perpendicular to the front face of the case (12), the first plate (56) constituting the main support of the self-supporting structure of the electromechanical block (20) , and that the contact system (86) and the differential transformer (82) are arranged on the same side of said first plate (56), and at different levels in the direction perpendicular to the front face, the mechanism actuation (42) and the trigger relay (72) being respectively juxtaposed transversely with the contact system (86) of the upper level, and with the differential transformer (82) of the lower level. 2. Interrupteur différentiel bipolaire selon la revendication 1, caractérisé par le fait que la première platine (56) du mécanisme (42) est dotée d'une extension se prolongeant jusqu'au voisinage de la base d'appui du bottier.(12) à l'opposé de la face avant, et que le relais (72) de déclenchement est solidarisé à l'une des faces de l'extension.2. Bipolar differential switch according to claim 1, characterized in that the first plate (56) of the mechanism (42) has an extension extending up to the vicinity of the boot base support. (12) opposite the front face, and that the trigger relay (72) is secured to one of the faces of the extension. 3. Interrupteur différentiel selon la revendication 1 ou 2, comprenant un circuit test à interrupteur d'essai de mise en circuit d'une résistance pour la simulation d'un défaut artificiel, caractérisé par le fait que la première platine (56) sert de support au système de contacts (86), et que la deuxième platine (58) porte un support isolant (60) du circuit test.3. Differential switch according to claim 1 or 2, comprising a test circuit with test switch for switching on a resistor for simulating an artificial fault, characterized in that the first plate (56) serves as support to the contact system (86), and that the second plate (58) carries an insulating support (60) of the test circuit. 4. Interrupteur différentiel selon la revendication 1, 2 ou 3, caractérisé par le fait que la première platine (56) du mécanisme (42) s'étend dans le plan médian vertical séparant les bornes (22,24) de chaque pôle, et que le boitier isolant (12) est réalisé par l'assemblage de deux parties antérieure (14) et postérieure (16), la partie postérieure (16) servant d'appui au bloc électromécanique (20) et la partie antérieure (14) comprenant des alvéoles (48) de logement des bornes (22,24) du raccordement.4. Differential switch according to claim 1, 2 or 3, characterized in that the first plate (56) of the mechanism (42) extends in the vertical median plane separating the terminals (22,24) of each pole, and that the insulating housing (12) is produced by the assembly of two anterior (14) and posterior (16) parts, the posterior part (16) serving as support for the electromechanical block (20) and the anterior part (14) comprising cells (48) for housing the terminals (22, 24) of the connection. 5. Interrupteur différentiel selon la revendication 4, caractérisé par le fait que le bouton test (44) et le support isolant (60) de l'interrupteur d'essai (46) sont situés dans un plan longitudinal parallèle aux platines (56, 58), et correspondant au débattement de la manette (40) pivotante, et que le mécanisme (40) est intercalé dans le sens de la largeur entre le système de contacts (86) et la manette (40).5. Differential switch according to claim 4, characterized in that the test button (44) and the insulating support (60) of the test switch (46) are located in a longitudinal plane parallel to the plates (56, 58 ), and corresponding to the movement of the pivoting lever (40), and that the mechanism (40) is inserted in the width direction between the contact system (86) and the lever (40). 6. Interrupteur différentiel selon l'une quelconque des revendications précédentes, caractérisé par le fait que le transformateur différentiel (82) et le relais de déclenchement (72) sont séparés transversalement dans la partie inférieure du boîtier (12) par l'extension de la première platine (56), et sont respectivement logés dans l'intervalle longitudinal ménagé entre les bornes d'entrée (24) et de sortie (22) du pôle correspondant.6. Differential switch according to any one of the preceding claims, characterized in that the differential transformer (82) and the trip relay (72) are separated transversely in the lower part of the housing (12) by the extension of the first plate (56), and are respectively housed in the longitudinal gap formed between the input (24) and output (22) terminals of the corresponding pole.
EP19830401327 1982-07-12 1983-06-28 Two-phase differential circuit breaker Expired EP0099786B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8212328A FR2530073A1 (en) 1982-07-12 1982-07-12 BIPOLAR DIFFERENTIAL SWITCH
FR8212328 1982-07-12

Publications (2)

Publication Number Publication Date
EP0099786A1 true EP0099786A1 (en) 1984-02-01
EP0099786B1 EP0099786B1 (en) 1986-03-19

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EP19830401327 Expired EP0099786B1 (en) 1982-07-12 1983-06-28 Two-phase differential circuit breaker

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EP (1) EP0099786B1 (en)
DE (1) DE3362597D1 (en)
ES (1) ES523954A0 (en)
FR (1) FR2530073A1 (en)
PT (1) PT77002B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569901A1 (en) * 1984-09-06 1986-03-07 Hager Electro IMPROVEMENTS TO AUTOMATIC SWITCHES, IN PARTICULAR TO DIFFERENTIAL SWITCHES AND CIRCUIT BREAKERS
EP0259272A2 (en) * 1986-08-04 1988-03-09 BASSANI TICINO S.p.A. A circuit breaker, preferably but not exclusively a double-pole circuit breaker, for mounting on enclosed box carrier frames of civil ranges of electric equipment
FR2609209A1 (en) * 1986-12-29 1988-07-01 Merlin Gerin BIPOLAR DIFFERENTIAL SWITCH WITH DEFECT INDICATOR
EP0579568A1 (en) * 1992-07-17 1994-01-19 Somef - Cables Et Accessoires Bipolar switch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108459233B (en) * 2018-03-27 2024-01-19 深圳供电局有限公司 Equivalent circuit of main transformer high-voltage two-phase disconnection fault and identification method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1371007A (en) * 1963-09-26 1964-08-28 Siemens Ag Safety electric circuit breaker with switch triggered by excess current, short circuits and fault currents
DE1256775B (en) * 1966-07-23 1967-12-21 Stotz Kontakt Gmbh Multipole electrical circuit breaker with overcurrent, short-circuit and fault current release
GB1145857A (en) * 1965-11-19 1969-03-19 B & R Relays Ltd Improvements in or relating to electrical circuit breakers
GB2043348A (en) * 1978-03-02 1980-10-01 Felten & Guilleaume Ag Oester A fault-current circuit breaker
EP0017818A1 (en) * 1979-04-12 1980-10-29 Siemens Aktiengesellschaft Earth fault circuit breaker with a checking device including a checking button
EP0058589A1 (en) * 1981-02-18 1982-08-25 Merlin Gerin Adapter with ground fault interrupter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1371007A (en) * 1963-09-26 1964-08-28 Siemens Ag Safety electric circuit breaker with switch triggered by excess current, short circuits and fault currents
GB1145857A (en) * 1965-11-19 1969-03-19 B & R Relays Ltd Improvements in or relating to electrical circuit breakers
DE1256775B (en) * 1966-07-23 1967-12-21 Stotz Kontakt Gmbh Multipole electrical circuit breaker with overcurrent, short-circuit and fault current release
GB2043348A (en) * 1978-03-02 1980-10-01 Felten & Guilleaume Ag Oester A fault-current circuit breaker
EP0017818A1 (en) * 1979-04-12 1980-10-29 Siemens Aktiengesellschaft Earth fault circuit breaker with a checking device including a checking button
EP0058589A1 (en) * 1981-02-18 1982-08-25 Merlin Gerin Adapter with ground fault interrupter

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569901A1 (en) * 1984-09-06 1986-03-07 Hager Electro IMPROVEMENTS TO AUTOMATIC SWITCHES, IN PARTICULAR TO DIFFERENTIAL SWITCHES AND CIRCUIT BREAKERS
EP0176402A1 (en) * 1984-09-06 1986-04-02 Hager Electro S.A. Switches with automatic circuit breaking, especially in differential switches and circuit breakers
EP0259272A2 (en) * 1986-08-04 1988-03-09 BASSANI TICINO S.p.A. A circuit breaker, preferably but not exclusively a double-pole circuit breaker, for mounting on enclosed box carrier frames of civil ranges of electric equipment
EP0259272A3 (en) * 1986-08-04 1988-08-17 BASSANI TICINO S.p.A. A circuit breaker, preferably but not exclusively a double-pole circuit breaker, for mounting on enclosed box carrier frames of civil ranges of electric equipment
FR2609209A1 (en) * 1986-12-29 1988-07-01 Merlin Gerin BIPOLAR DIFFERENTIAL SWITCH WITH DEFECT INDICATOR
EP0275750A1 (en) * 1986-12-29 1988-07-27 Merlin Gerin Bipolar differential interrupter with fault indicator
EP0579568A1 (en) * 1992-07-17 1994-01-19 Somef - Cables Et Accessoires Bipolar switch
FR2693833A1 (en) * 1992-07-17 1994-01-21 Lenoir Hubert Bipolar switch.

Also Published As

Publication number Publication date
ES8404106A1 (en) 1984-04-16
PT77002B (en) 1986-01-28
PT77002A (en) 1983-08-01
FR2530073B1 (en) 1985-01-11
EP0099786B1 (en) 1986-03-19
FR2530073A1 (en) 1984-01-13
ES523954A0 (en) 1984-04-16
DE3362597D1 (en) 1986-04-24

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