EP0161945A1 - Remote control auxiliary block for an electric-circuit breaker - Google Patents

Remote control auxiliary block for an electric-circuit breaker Download PDF

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Publication number
EP0161945A1
EP0161945A1 EP85400142A EP85400142A EP0161945A1 EP 0161945 A1 EP0161945 A1 EP 0161945A1 EP 85400142 A EP85400142 A EP 85400142A EP 85400142 A EP85400142 A EP 85400142A EP 0161945 A1 EP0161945 A1 EP 0161945A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
remote
drum
movable core
closing
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
EP85400142A
Other languages
German (de)
French (fr)
Other versions
EP0161945B1 (en
Inventor
Jacques Perret
Bernard Lepretre
Patrick Rousset
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Merlin Gerin SA filed Critical Merlin Gerin SA
Priority to AT85400142T priority Critical patent/ATE34486T1/en
Publication of EP0161945A1 publication Critical patent/EP0161945A1/en
Application granted granted Critical
Publication of EP0161945B1 publication Critical patent/EP0161945B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/36—Driving mechanisms, i.e. for transmitting driving force to the contacts using belt, chain, or cord
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1018—Interconnected mechanisms with only external interconnections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/66—Power reset mechanisms
    • H01H71/68—Power reset mechanisms actuated by electromagnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
    • H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock

Definitions

  • the object of the present invention is to improve the embodiment of the closing stage of the auxiliary remote control unit of the circuit breaker.
  • the remote-controlled circuit breaker according to the invention is characterized in that the said kinematic chain comprises a transmission system by cable or belt, coupled between the movable core and a driving drum of the lever towards the stable closing position of the circuit breaker during the excitation of the control coil of the closing electromagnet, and that the drum cooperates with an elastic means of reminder to return the movable core to the separated position after de-energizing of said coil.
  • the drum is pivotally mounted on a fixed axis extending orthogonally to the direction of movement of the movable core.
  • the intermediate part of the transmission system cable passes over a return roller which is part of a tensioner.
  • An adjustment screw makes it possible to adjust the relative position of the tensioner with respect to the movable core and the drum.
  • the elastic return means comprises a torsion spring threaded on the axis of the drum to urge the latter towards an inactive position allowing local manual control of the handle of the circuit breaker.
  • the main circuit breaker block has a multipole structure comprising a stack of poles, the handles of which are mechanically coupled together by means of a common bar.
  • the latter is advantageously secured to an intermediate lever which reproduces at all times the exact position of the levers.
  • the lever is pivotally mounted on the axis of the drum, the latter being arranged to unidirectionally drive the intermediate lever in the direction closing when the coil is energized, and to return to the inactive position after de-energizing the coil.
  • an auxiliary electrical remote control unit 10 is attached by snap-fastening to a side face of a main circuit breaker main unit 12 standard to form a remote-controlled three-pole circuit breaker with molded case intended to ensure the opening-closing command from a distance and the protection '' a low voltage distribution circuit.
  • each pole R, S, T of the circuit breaker block 12 which can be of the type described in French patent N ° 2,350,680.
  • Each pole R, S, T comprises a pair of connection terminals 14, 16, separable contacts (not shown) and an actuation mechanism (not shown) of the movable contact between the open and closed positions.
  • the mechanism cooperates with a manual control lever 18 with two stable positions, and with the thermomagnetic trip device for automatic triggering in the event of an overload or short-circuit.
  • the levers 18 of the different poles R, S, T of the circuit breaker block 12 are mechanically coupled together by means of a common bar 20, described for example in French patents Nos. 2,494,031 and 2,414,784.
  • the remote opening-closing command function is performed by the remote control unit 10 equipped with one or two terminal blocks 22 for external connection.
  • the outline of the housing 21 of the remote control unit 10 corresponds to that of the circuit breaker unit 12 to form, after assembly, a one-piece assembly.
  • the assembly of the two modular housings of the blocks 10, 12 takes place by means of a latching device described in French patent No. 2,411,329.
  • the side face 24 (fig. 3) of the housing 21 of the remote control unit 10 has a latching element 26 of the latching device, centering pins 28 which fit into conjugated housings of the housing of the pole T in position adjoining the blocks 10, 12Jet means 30, 32 for transmitting the tripping movement between the two blocks 10, 12.
  • the transmission means 30, 32 form first and second mechanical control links between the mechanism of the circuit breaker block 12 and the opening stage of the remote control unit 10. The opening stage of the latter does not form part of the invention and will not be described below.
  • the closing stage of the remote control unit 10 comprises a closing electromagnet 34 (FIGS. 2 and 3) with a control coil 36 surrounded by a ferromagnetic yoke 38.
  • the tubular coil 36 is mounted coaxially on an insulating sheath 40 inside which is arranged a movable sliding core 42 cooperating by magnetic attraction with a fixed core 44 secured to the yoke 38.
  • the electromagnet 34 rests on the bottom of the housing 21, and the active end 45 of the movable core 42 is connected to the bar 20 for coupling the levers 18 of the circuit breaker block 12 by means of a transmission system 46 by flexible cable 48.
  • the transmission system 46 includes a connection unidirectional drum drag 50 provided with an extension 51 acting on an arm of an intermediate lever 52 secured to the bar 20.
  • the drum 50 and the intermediate lever 52 are pivotally mounted on a fixed axis 54 arranged in the upper part of the housing 21 extending parallel to the bar 20 and orthogonally to the direction of movement of the mobile core 42.
  • the cable 48 is provided with an end piece 56 anchored in a yoke 58 pivoting on an axis 60 auxiliary to the drum 50.
  • the part intermediate of the cable 48 passes over a deflection roller 62 mounted for rotation on an axis 66 of a caliper 64.
  • the roller 62 and caliper assembly constitutes a tensioner 65 whose position is adjustable by means of an adjustment screw 68 .
  • An elastic return means biases the drum 50 clockwise in abutment against a stop formed by the wall of the housing 21.
  • the elastic means comprises a torsion spring 70 threaded on the axis 54, one of the ends of the spring 70 being anchored to the drum 50 and the opposite end bearing on a boss 72 of the housing 21.
  • the return of the drum 50 to the inactive position takes place automatically after the coil 36 of the closing electromagnet 34 has de-energized and simultaneously causes the movable core 42 to return to the separated position thanks to the cable connection 48.
  • the arrangement of the transmission system 46 does not require any auxiliary return spring between the fixed 44 and mobile 42 cores of the electromagnet 34.
  • the intermediate lever 52 follows the bar 20 during the opening and closing movement of the circuit breaker, and reproduces at all times the exact position of the levers 18.
  • the remote control unit 10 further comprises a padlocking device 74 intended for electrical locking and mechanical circuit breaker in open position.
  • the padlocking device 74 comprises a slide 76 which can be moved in a groove 78 located in the upper part of the housing 21 and in the extension of the bar 20.
  • the slide 76 carries a contact system 80 cooperating by sliding with a fixed contact 82 inserted in the electrical supply circuit of the electromagnet 34.
  • a compression spring 84 biases the slide 76 towards an unlocking position (fig. 3) in which the contacts 80, 82 are closed. In the depressed locking position of the slide 76, the contacts 80, 82 are open and prevent the excitation of the electromagnet 34.
  • the remote closing of the circuit breaker is moreover mechanically condemned by blocking by the slide 76 of the intermediate lever 52.
  • a padlock (not shown) can be introduced into an ear 86 of the slide 76 which is locked between two protrusions 88, 90 of the housing 21.
  • the bar 20 In the open position of the circuit breaker contacts following a fault tripping or manual opening, the bar 20 is in the stable open position and the intermediate lever 52 of the transmission system 46 is supported by the extension 51 of the drum 50.
  • a remote closing order can be sent to the terminal block 22 of the remote control unit 10, causing the coil 36 of the closing electromagnet 34 to be excited.
  • the movable core 42 is attracted (in dotted lines in FIG. 2) against the fixed core 44, and exerts traction on the cable 48 whose displacement in the direction of the arrow F 2 causes the drum 50 to pivot from the inactive position to a position active (dotted in fig. 2).
  • the pivoting of the drum 50 takes place in a counterclockwise direction against the return spring 70, so as to drive the intermediate lever 52 and the bar 20 towards the closed position of the circuit breaker.
  • a change-over contact (not shown) automatically interrupts the supply of the coil 36, and the return spring 70 returns the drum 50 to the inactive position and the movable core 42 to the separated position while the bar 20 remains stationary in the stable closed position.
  • a remote opening order can be applied to the opening stage of the remote control unit 10.
  • the opening order is transmitted in a conventional manner by the means 30, 32 to the circuit breaker release.
  • the closing stage of block 10 remains at rest during this tripping operation, but can be reactivated as soon as the contacts of the circuit breaker are open.

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

1. Remote controlled low-voltage circuit breaker constituted by the association of an auxiliary remote opening and closing control block (10) connected with a circuit breaker main block (12) comprising a mechanism with a manual control handle and with an automatic fault trip device, said auxiliary block comprising : - a first remote opening electromagnet associated to a mechanical control link with the circuit breaker main block in order to transmit a trip order of said first electromagnet to the trip device of the mechanism, - a second remote closing electromagnet (34), the movable core (42) of which is connected with the mechanism of the main block by a movement transformation cinematic chain (46), - connecting terminals (22) of the remote control for the supply of said electromagnets, - and an interlock device (74) for the electrical and mechanical locking of the circuit breaker in open position, characterized by the fact that said cinematic chain comprises a transmission system (46) by cable (48) or belt, coupled between the movable core (42) and a drum (50) driving the handle (18) towards the stationary closing position of the circuit breaker when the control coil (36) of the closing electromagnet (34) is energized, and that the drum (50) cooperates with an elastic pull-off means (70) in order to pull back the movable core (42) into the separated position after de-energization of said coil (36).

Description

L'invention concerne un disjoncteur télécommandé à basse tension formé par l'association d'un bloc auxiliaire de commande d'ouverture et de fermeture à distance, accouplé à un bloc principal disjoncteur ayant un mécanisme à manette de commande manuelle et à déclencheur automatique sur défaut, ledit bloc auxiliaire comprenant :

  • - un premier électro-aimant d'ouverture à distance associé à une liaison mécanique de commande avec le bloc principal disjoncteur pour transmettre un ordre de déclenchement dudit premier électro-aimant au déclencheur du mécanisme,
  • - un deuxième électro-aimant de fermeture à distance dont le noyau mobile est relié au mécanisme du bloc principal par une chaîne cinématique de transformation de mouvement,
  • - un bornier de raccordement de la commande à distance pour l'alimentation desdits électro-aimants,
  • - et un dispositif de cadenassage pour le verrouillage électrique et mécanique du disjoncteur en position ouvert.
The invention relates to a low-voltage remote-controlled circuit breaker formed by the association of an auxiliary remote opening and closing control block, coupled to a main circuit breaker block having a mechanism with manual control lever and with automatic tripping on fault, said auxiliary unit comprising:
  • a first remote opening electromagnet associated with a mechanical control link with the main circuit breaker block for transmitting a tripping order from said first electromagnet to the trigger of the mechanism,
  • - a second remote closing electromagnet, the movable core of which is connected to the mechanism of the main block by a kinematic chain of movement transformation,
  • - a terminal block for connecting the remote control for supplying said electromagnets,
  • - and a padlocking device for the electrical and mechanical locking of the circuit breaker in the open position.

Cette technique modulaire d'assemblage du bloc auxiliaire de commande à distance à la face latérale d'un bloc disjoncteur principal impose des contraintes de fabrication et de conception pour loger les différents éléments dans un encombrement donné par les dimensions du boîtier de chaque bloc. Une chaîne cinématique utilisant un embiellage compliqué pour transmettre l'ordre de fermeture du deuxième électro-aimant au mécanisme du bloc disjoncteur n'est pas adaptée à ce type d'appareillage modulaire.This modular technique of assembling the auxiliary remote control unit to the lateral face of a main circuit breaker unit imposes manufacturing and design constraints to accommodate the various elements in a space given by the dimensions of the housing of each unit. A kinematic chain using a complicated linkage to transmit the order to close the second electromagnet to the mechanism of the circuit breaker block is not suitable for this type of modular equipment.

La présente invention a pour but de perfectionner la réalisation de l'étage de fermeture du bloc auxiliaire de commande à distance du disjoncteur.The object of the present invention is to improve the embodiment of the closing stage of the auxiliary remote control unit of the circuit breaker.

Le disjoncteur télécommandé selon l'invention est caractérisé par le fait que ladite chaîne cinématique comporte un système de transmission par câble ou courroie, accouplé entre le noyau mobile et un tambour d'entraînement de la manette vers la position stable de fermeture du disjoncteur lors de l'excitation de la bobine de commande de l'électro-aimant de fermeture, et que le tambour coopère avec un moyen élastique de rappel pour ramener le noyau mobile en position écartée après désexcitation de ladite bobine.The remote-controlled circuit breaker according to the invention is characterized in that the said kinematic chain comprises a transmission system by cable or belt, coupled between the movable core and a driving drum of the lever towards the stable closing position of the circuit breaker during the excitation of the control coil of the closing electromagnet, and that the drum cooperates with an elastic means of reminder to return the movable core to the separated position after de-energizing of said coil.

L'utilisation d'une transmission directe par câble simplifie la réalisation de l'étage de fermeture dont la structure plate répond aux impératifs d'encombrement. Aucun ressort auxiliaire de rappel n'est nécessaire au niveau de l'électro-aimant de fermeture, étant donné que le moyen élastique du tambour ramène automatiquement le noyau mobile en position écartée par l'intermédiaire du câble.The use of a direct cable transmission simplifies the production of the closing stage, the flat structure of which meets the space requirements. No auxiliary return spring is necessary at the level of the closing electromagnet, since the elastic means of the drum automatically brings the movable core back to the spaced position via the cable.

Le tambour est monté à pivotement sur un axe fixe s'étendant orthogonalement à la direction de déplacement du noyau mobile. La partie intermédiaire du câble du système de transmission passe sur un galet de renvoi faisant partie d'un tendeur. Une vis de réglage permet d'ajuster la position relative du tendeur par rapport au noyau mobile et au tambour.The drum is pivotally mounted on a fixed axis extending orthogonally to the direction of movement of the movable core. The intermediate part of the transmission system cable passes over a return roller which is part of a tensioner. An adjustment screw makes it possible to adjust the relative position of the tensioner with respect to the movable core and the drum.

Le moyen élastique de rappel comprend un ressort de torsion enfilé sur l'axe du tambour pour solliciter ce dernier vers une position inactive autorisant une commande manuelle locale de la manette du disjoncteur.The elastic return means comprises a torsion spring threaded on the axis of the drum to urge the latter towards an inactive position allowing local manual control of the handle of the circuit breaker.

Selon un développement de l'invention, le bloc principal disjoncteur présente une structure multipolaire comportant un empilage de pôles dont les manettes sont accouplées mécaniquement entre elles au moyen d'une barrette commune. Cette dernière est avantageusement solidarisée à un levier intermédiaire qui reproduit à chaque instant la position exacte des manettes. Le levier est monté à pivotement sur l'axe du tambour, ce dernier étant agencé pour entraîner unidirectionnellement le levier intermédiaire dans le sens de fermeture lors de l'excitation de la bobine, et pour revenir en position inactive après désexcitation de la bobine.According to a development of the invention, the main circuit breaker block has a multipole structure comprising a stack of poles, the handles of which are mechanically coupled together by means of a common bar. The latter is advantageously secured to an intermediate lever which reproduces at all times the exact position of the levers. The lever is pivotally mounted on the axis of the drum, the latter being arranged to unidirectionally drive the intermediate lever in the direction closing when the coil is energized, and to return to the inactive position after de-energizing the coil.

D'autres avantages et caractéristiques ressortiront plus clairement de la description 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 schématique en élévation partiellement arrachée d'un disjoncteur télécommandé selon l'invention;
  • - les figures 2 et 3 montrent des coupes transversale et longitudinale de l'étage de fermeture du bloc auxiliaire de commande à distance.
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 schematic elevational view partially cut away of a remote controlled circuit breaker according to the invention;
  • - Figures 2 and 3 show transverse and longitudinal sections of the closing stage of the auxiliary remote control unit.

Sur les figures, un bloc auxiliaire de télécommmande 10 électrique est accolé par encliquetage à une face latérale d'un bloc principal disjoncteur 12 standard pour former un disjoncteur tripolaire télécommandé à boîtier moulé destiné à assurer la commande ouverture - fermeture à distance et la protection d'un circuit de distribution à basse tension.In the figures, an auxiliary electrical remote control unit 10 is attached by snap-fastening to a side face of a main circuit breaker main unit 12 standard to form a remote-controlled three-pole circuit breaker with molded case intended to ensure the opening-closing command from a distance and the protection '' a low voltage distribution circuit.

La fonction protection, notamment contre les surcharges et les courts-circuits, est assurée par un déclencheur magnétothermique logé dans chaque pôle R,S,T du bloc disjoncteur 12, qui peut être du type décrit dans le brevet français N° 2.350.680. Chaque pôle R, S, T comporte une paire de bornes 14, 16 de connexion, des contacts séparables (non représentés) et un mécanisme d'actionnement (non représenté) du contact mobile entre les positions d'ouverture et de fermeture. Le mécanisme coopère avec une manette 18 de commande manuelle à deux positions stables, et avec le déclencheur magnétothermique pour le déclenchement automatique en cas de surcharge ou de court-circuit. Les manettes 18 des différents pôles R, S, T du bloc disjoncteur 12 sont accouplées mécaniquement entre elles au moyen d'une barrette 20 commune, décrite par exemple dans les brevets français Nos. 2.494.031 et 2.414.784.The protection function, in particular against overloads and short-circuits, is ensured by a magneto-thermal trip unit housed in each pole R, S, T of the circuit breaker block 12, which can be of the type described in French patent N ° 2,350,680. Each pole R, S, T comprises a pair of connection terminals 14, 16, separable contacts (not shown) and an actuation mechanism (not shown) of the movable contact between the open and closed positions. The mechanism cooperates with a manual control lever 18 with two stable positions, and with the thermomagnetic trip device for automatic triggering in the event of an overload or short-circuit. The levers 18 of the different poles R, S, T of the circuit breaker block 12 are mechanically coupled together by means of a common bar 20, described for example in French patents Nos. 2,494,031 and 2,414,784.

La fonction commande ouverture - fermeture à distance est réalisée par le bloc de télécommande 10 équipé d'un ou de deux borniers 22 de raccordement extérieur. Le contour du boîtier 21 du bloc de télécommande 10 correspond à celui du bloc disjoncteur 12 pour former après assemblage un ensemble monobloc. L'assemblage des deux boîtiers modulaires des blocs 10, 12 intervient au moyen d'un dispositif d'encliquetage décrit dans le brevet français N° 2.411.329. La face latérale 24 (fig. 3) du boîtier 21 du bloc de télécommande 10 présente un élément d'accrochage 26 du dispositif d'encliquetage, des tétons de centrage 28 venant s'emboîter dans des logements conjugués du boîtier du pôle T en position accolée des blocs 10, 12Jet des moyens 30, 32 de transmission du mouvement de déclenchement entre les deux blocs 10, 12. Les moyens 30, 32 de transmission forment une première et une deuxième liaisons mécaniques de commande entre le mécanisme du bloc disjoncteur 12 et l'étage d'ouverture du bloc de télécommande 10. L'étage d'ouverture de ce dernier ne fait pas partie de l'invention et ne sera pas décrit par la suite.The remote opening-closing command function is performed by the remote control unit 10 equipped with one or two terminal blocks 22 for external connection. The outline of the housing 21 of the remote control unit 10 corresponds to that of the circuit breaker unit 12 to form, after assembly, a one-piece assembly. The assembly of the two modular housings of the blocks 10, 12 takes place by means of a latching device described in French patent No. 2,411,329. The side face 24 (fig. 3) of the housing 21 of the remote control unit 10 has a latching element 26 of the latching device, centering pins 28 which fit into conjugated housings of the housing of the pole T in position adjoining the blocks 10, 12Jet means 30, 32 for transmitting the tripping movement between the two blocks 10, 12. The transmission means 30, 32 form first and second mechanical control links between the mechanism of the circuit breaker block 12 and the opening stage of the remote control unit 10. The opening stage of the latter does not form part of the invention and will not be described below.

L'étage de fermeture du bloc de télécommande 10 comporte un électro-aimant de fermeture 34 (fig. 2 et 3) à bobine 36 de commande entourée par une culasse 38 ferromagnétique. La bobine 36 tubulaire est montée coaxialement sur un fourreau 40 isolant à l'intérieur duquel est agencé un noyau mobile 42 coulissant coopérant par attraction magnétique avec un noyau fixe 44 solidaire de la culasse 38. L'électro-aimant 34 repose sur le fond du boîtier 21, et l'extrémité active 45 du noyau mobile 42 est reliée à la barrette 20 d'accouplement des manettes 18 du bloc disjoncteur 12 par l'intermédiaire d'un système de transmission 46 par câble 48 souple.The closing stage of the remote control unit 10 comprises a closing electromagnet 34 (FIGS. 2 and 3) with a control coil 36 surrounded by a ferromagnetic yoke 38. The tubular coil 36 is mounted coaxially on an insulating sheath 40 inside which is arranged a movable sliding core 42 cooperating by magnetic attraction with a fixed core 44 secured to the yoke 38. The electromagnet 34 rests on the bottom of the housing 21, and the active end 45 of the movable core 42 is connected to the bar 20 for coupling the levers 18 of the circuit breaker block 12 by means of a transmission system 46 by flexible cable 48.

Le système de transmission 46 comprend une liaison d'entraînement unidirectionnelle à tambour 50 doté d'une extension 51 agissant sur un bras d'un levier 52 intermédiaire solidarisé à la barrette 20. Le tambour 50 et le levier 52 intermédiaire sont montés à pivotement sur un axe 54 fixe agencé dans la partie supérieure du boîtier 21 en s'étendant parallèlement à la barrette 20 et orthogonalement à la direction de déplacement du noyau mobile 42. Le câble 48 est doté d'un embout 56 ancré dans une chape 58 pivotante sur un axe 60 auxiliaire du tambour 50. La partie intermédiaire du câble 48 passe sur un galet 62 de renvoi monté à rotation sur un axe 66 d'un étrier 64. L'ensemble galet 62 et étrier 64 constitue un tendeur 65 dont la position est ajustable au moyen d'une vis de réglage 68.The transmission system 46 includes a connection unidirectional drum drag 50 provided with an extension 51 acting on an arm of an intermediate lever 52 secured to the bar 20. The drum 50 and the intermediate lever 52 are pivotally mounted on a fixed axis 54 arranged in the upper part of the housing 21 extending parallel to the bar 20 and orthogonally to the direction of movement of the mobile core 42. The cable 48 is provided with an end piece 56 anchored in a yoke 58 pivoting on an axis 60 auxiliary to the drum 50. The part intermediate of the cable 48 passes over a deflection roller 62 mounted for rotation on an axis 66 of a caliper 64. The roller 62 and caliper assembly constitutes a tensioner 65 whose position is adjustable by means of an adjustment screw 68 .

Un moyen élastique de rappel sollicite le tambour 50 dans le,sens horaire en appui contre une butée formée par la paroi du boîtier 21. Le moyen élastique comprend un ressort de torsion 70 enfilé sur l'axe 54, l'une des extrémités du ressort 70 étant ancrée au tambour 50 et l'extrémité opposée prenant appui sur un bossage 72 du boîtier 21.An elastic return means biases the drum 50 clockwise in abutment against a stop formed by the wall of the housing 21. The elastic means comprises a torsion spring 70 threaded on the axis 54, one of the ends of the spring 70 being anchored to the drum 50 and the opposite end bearing on a boss 72 of the housing 21.

Le rappel du tambour 50 vers la position inactive s'opère automatiquement après désexcitation de la bobine 36 de l'électro-aimant de fermeture 34 et provoque simultanément le retour du noyau mobile 42 en position écartée grâce à la liaison par câble 48. L'agencement du système de transmission 46 ne nécessite aucun ressort de rappel auxiliaire entre les noyaux fixe 44 et mobile 42 de l'électro-aimant 34.The return of the drum 50 to the inactive position takes place automatically after the coil 36 of the closing electromagnet 34 has de-energized and simultaneously causes the movable core 42 to return to the separated position thanks to the cable connection 48. The arrangement of the transmission system 46 does not require any auxiliary return spring between the fixed 44 and mobile 42 cores of the electromagnet 34.

Le levier intermédiaire 52 suit la barrette 20 lors du mouvement d'ouverture et de fermeture du disjoncteur, et reproduit à chaque instant la position exacte des manettes 18.The intermediate lever 52 follows the bar 20 during the opening and closing movement of the circuit breaker, and reproduces at all times the exact position of the levers 18.

Le bloc de télécommande 10 comporte de plus un dispositif de cadenassage 74 destiné au verrouillage électrique et mécanique du disjoncteur en position d'ouverture. Le dispositif de cadenassage 74 comporte un coulisseau 76 pouvant être déplacé dans une rainure 78 se trouvant dans la partie supérieure du boîtier 21 et dans le prolongement de la barrette 20. Le coulisseau 76 porte un système de contacts 80 coopérant par glissement avec un contact fixe 82 inséré dans le circuit électrique d'alimentation de l'électro-aimant 34. Un ressort de compression 84 sollicite le coulisseau 76 vers une position de déverrouillage (fig. 3) dans laquelle les contacts 80, 82 sont fermés. En position enfoncée de verrouillage du coulisseau 76, les contacts 80, 82 sont ouverts et interdisent l'excitation de l'électro-aimant 34. La fermeture à distance du disjoncteur est de plus condamnée mécaniquement grâce au blocage par le coulisseau 76 du levier intermédiaire 52.The remote control unit 10 further comprises a padlocking device 74 intended for electrical locking and mechanical circuit breaker in open position. The padlocking device 74 comprises a slide 76 which can be moved in a groove 78 located in the upper part of the housing 21 and in the extension of the bar 20. The slide 76 carries a contact system 80 cooperating by sliding with a fixed contact 82 inserted in the electrical supply circuit of the electromagnet 34. A compression spring 84 biases the slide 76 towards an unlocking position (fig. 3) in which the contacts 80, 82 are closed. In the depressed locking position of the slide 76, the contacts 80, 82 are open and prevent the excitation of the electromagnet 34. The remote closing of the circuit breaker is moreover mechanically condemned by blocking by the slide 76 of the intermediate lever 52.

Dans cette position un cadenas (non représenté) peut être introduit dans une oreille 86 du coulisseau 76 qui se trouve verrouillé entre deux protubérances 88, 90 du boîtier 21.In this position, a padlock (not shown) can be introduced into an ear 86 of the slide 76 which is locked between two protrusions 88, 90 of the housing 21.

Le fonctionnement du disjoncteur télécommandé est le suivant :

  • En l'absence d'un ordre d'ouverture ou de fermeture à distance, le bloc de télécommande 10 se trouve en position de repos. Sous l'action du ressort 70 de rappel, le tambour 50 du système de transmission 46 de l'étage de fermeture est en position inactive, représentée en traits continus sur la figure 2. Le câble 48 est sollicité dans le sens de la flèche F1 et maintient le noyau mobile 42 de l'électro-aimant 34 en position écartée. Le disjoncteur peut être ouvert et fermé manuellement par l'actionnement local de la barrette 20 d'accouplement des manettes 18.
The operation of the remote-controlled circuit breaker is as follows:
  • In the absence of a remote opening or closing order, the remote control unit 10 is in the rest position. Under the action of the return spring 70, the drum 50 of the transmission system 46 of the closing stage is in the inactive position, shown in solid lines in FIG. 2. The cable 48 is stressed in the direction of the arrow F 1 and maintains the movable core 42 of the electromagnet 34 in the separated position. The circuit breaker can be opened and closed manually by local actuation of the bar 20 for coupling the levers 18.

En position d'ouverture des contacts du disjoncteur suite à un déclenchement sur défaut ou à une ouverture manuelle, la barrette 20 se trouve en position stable d'ouverture et le levier intermédiaire 52 du système de transmission 46 prend appui sur l'extension 51 du tambour 50. Un ordre de fermeture à distance peut être envoyé au bornier 22 du bloc de télécommande 10, entraînant l'excitation de la bobine 36 de l'électro-aimant de fermeture 34. Le noyau mobile 42 est attiré (en pointillé sur la fig. 2) contre le noyau fixe 44, et exerce une traction sur le câble 48 dont le déplacement dans le sens de la flèche F2 provoque le pivotement du tambour 50 de la position inactive vers une position active (en pointillé sur la fig. 2). Le pivotement du tambour 50 s'opère dans le sens trigonométrique à l'encontre du ressort de rappel 70, de manière à entraîner le levier intermédiaire 52 et la barrette 20 vers la position de fermeture du disjoncteur. En position fermée des contacts, un contact inverseur (non représenté) interrompt automatiquement l'alimentation de la bobine 36, et le ressort de rappel 70 remet le tambour 50 en position inactive et le noyau mobile 42 en position écartée alors que la barrette 20 reste immobile dans la position stable de fermeture.In the open position of the circuit breaker contacts following a fault tripping or manual opening, the bar 20 is in the stable open position and the intermediate lever 52 of the transmission system 46 is supported by the extension 51 of the drum 50. A remote closing order can be sent to the terminal block 22 of the remote control unit 10, causing the coil 36 of the closing electromagnet 34 to be excited. The movable core 42 is attracted (in dotted lines in FIG. 2) against the fixed core 44, and exerts traction on the cable 48 whose displacement in the direction of the arrow F 2 causes the drum 50 to pivot from the inactive position to a position active (dotted in fig. 2). The pivoting of the drum 50 takes place in a counterclockwise direction against the return spring 70, so as to drive the intermediate lever 52 and the bar 20 towards the closed position of the circuit breaker. In the closed position of the contacts, a change-over contact (not shown) automatically interrupts the supply of the coil 36, and the return spring 70 returns the drum 50 to the inactive position and the movable core 42 to the separated position while the bar 20 remains stationary in the stable closed position.

En position de fermeture des contacts du disjoncteur, un ordre d'ouverture à distance peut être appliqué à l'étage d'ouverture du bloc de télécommande 10. L'ordre d'ouverture est transmis d'une manière classique par les moyens 30, 32 au déclencheur du disjoncteur. L'étage de fermeture du bloc 10 reste au repos durant cette opération de déclenchement, mais peut être réactivé dès que les contacts du disjoncteur sont ouverts.In the closed position of the circuit breaker contacts, a remote opening order can be applied to the opening stage of the remote control unit 10. The opening order is transmitted in a conventional manner by the means 30, 32 to the circuit breaker release. The closing stage of block 10 remains at rest during this tripping operation, but can be reactivated as soon as the contacts of the circuit breaker are open.

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 électromécaniques, notamment celle dans laquelle le câble 48 du système de transmission 46 serait remplacé par tout autre organe souple de transmission de la force de commande de fermeture, notamment une sangle, une courroie ou une chaîne.The invention is of course in no way limited to the embodiment more particularly described and shown in the accompanying drawings, but it extends quite the contrary to any variant remaining within the scope of electromechanical equivalences, in particular that in which the cable 48 of the transmission system 46 would be replaced by any other flexible member for transmitting the closing control force, in particular a strap, a belt or a chain.

Claims (8)

1. Disjoncteur télécommandé à basse tension formé par l'association d'un bloc auxiliaire de commande d'ouverture et de fermeture à distance accouplé à un bloc principal disjoncteur ayant un mécanisme à manette de commande manuelle et à déclencheur automatique sur défaut, ledit bloc auxiliaire comprenant : - un premier électro-aimant d'ouverture à distance associé à une liaison mécanique de commande avec le bloc principal disjoncteur pour transmettre un ordre de déclenchement dudit premier électro-aimant au déclencheur du mécanisme, - un deuxième électro-aimant de fermeture à distance dont le noyau mobile est relié au mécanisme du bloc principal par une chaîne cinématique de transformation de mouvement, - un bornier de raccordement de la commande à distance pour l'alimentation desdits électro-aimants, - et un dispositif de cadenassage pour le verrouillage électrique et mécanique du disjoncteur en position ouvert, caractérisé par le fait que ladite chaîne cinématique comporte un système de transmission (46) par câble (48) ou courroie, accouplé entre le noyau mobile (42) et un tambour (50) d'entraînement de la manette (18) vers la position stable de fermeture du disjoncteur lors de l'excitation de la bobine (36) de commande de l'électro-aimant de fermeture (34), et que le tambour (50) coopère avec un moyen élastique de rappel pour ramener le noyau mobile (42) en position écartée après désexcitation de ladite bobine. 1. Remote-controlled low-voltage circuit breaker formed by the association of an auxiliary remote opening and closing control block coupled to a main circuit breaker block having a manual control lever mechanism and with automatic tripping on fault, said block auxiliary including: a first remote opening electromagnet associated with a mechanical control link with the main circuit breaker block for transmitting a tripping order from said first electromagnet to the trigger of the mechanism, - a second remote closing electromagnet, the movable core of which is connected to the mechanism of the main block by a kinematic chain of movement transformation, - a terminal block for connecting the remote control for supplying said electromagnets, - And a padlocking device for the electrical and mechanical locking of the circuit breaker in the open position, characterized in that said kinematic chain comprises a transmission system (46) by cable (48) or belt, coupled between the movable core (42) and a drum (50) for driving the handle (18) towards the stable closing position of the circuit breaker when the coil (36) controlling the closing electromagnet (34) is energized, and the drum (50) cooperates with an elastic return means for bringing the movable core (42) into the separated position after de-energization of said coil. 2. Disjoncteur télécommandé selon la revendication 1, caractérisé par le fait que le noyau mobile (42) coulissant est agencé coaxialement à l'intérieur de la bobine de commande (36) de forme tubulaire, et que le tambour (50) est monté à pivotement sur un axe (54) fixe s'étendant orthogonalement à la direction de déplacement du noyau mobile (42).2. Remote-controlled circuit breaker according to claim 1, characterized in that the sliding movable core (42) is arranged coaxially inside the control coil (36) of tubular shape, and that the drum (50) is mounted at pivoting on a fixed axis (54) extending orthogonally to the direction of movement of the movable core (42). 3. Disjoncteur télécommandé selon la revendication 2, caractérisé par le fait que la partie intermédiaire du câble (48) du système de transmission (46) passe sur un galet (62) de renvoi faisant partie d'un tendeur (65), et qu'une vis de réglage (68) permet d'ajuster la position relative du tendeur (65) par rapport au noyau mobile (42) et au tambour (50).3. Remote controlled circuit breaker according to claim 2, characterized in that the intermediate part of the cable (48) of the transmission system (46) passes over a idler roller (62) forming part of a tensioner (65), and that an adjusting screw (68) makes it possible to adjust the relative position of the tensioner (65 ) relative to the movable core (42) and the drum (50). 4. Disjoncteur télécommandé selon la revendication 2 ou 3, caractérisé par le fait que le moyen élastique de rappel comprend un ressort de torsion (70) enfilé sur l'axe (54) du tambour (50) pour solliciter ce dernier vers une position inactive autorisant une commande manuelle locale de la manette du disjoncteur.4. Remote controlled circuit breaker according to claim 2 or 3, characterized in that the elastic return means comprises a torsion spring (70) threaded on the axis (54) of the drum (50) to urge the latter towards an inactive position authorizing local manual control of the circuit breaker handle. 5. Disjoncteur télécommandé selon l'une des revendications 1 à 4, caractérisé par le fait qu'à l'opposé du noyau mobile (42), le câble (48) est doté d'un embout (56) accroché .dans une châpe (58) pivotante sur un axe (60) auxiliaire du tambour (50).5. Remote controlled circuit breaker according to one of claims 1 to 4, characterized in that opposite to the movable core (42), the cable (48) is provided with a tip (56) hung .in a scraper (58) pivoting on an axis (60) auxiliary to the drum (50). 6. Disjoncteur télécommandé multipolaire selon l'une des revendications 1 à 5, dans lequel les manettes des différents pôles juxtaposés du bloc principal disjoncteur sont connectées mécaniquement entre elles au moyen d'une barrette commune, caractérisé par le fait que la barrette (20) est solidarisée à un levier intermédiaire (52) qui reproduit à chaque instant la position exacte des manettes (18), et que ledit levier (52) est monté à pivotement sur l'axe (54) du tambour (50), ce dernier étant agencé pour entraîner unidirectionnellement le levier intermédiaire (52) dans le sens de fermeture lors de l'excitation de la bobine (36), et pour revenir en position inactive après désexcitation de la bobine (36).6. Multipolar remote controlled circuit breaker according to one of claims 1 to 5, in which the levers of the different juxtaposed poles of the main circuit breaker block are mechanically connected to each other by means of a common bar, characterized in that the bar (20) is secured to an intermediate lever (52) which reproduces at all times the exact position of the levers (18), and that said lever (52) is pivotally mounted on the axis (54) of the drum (50), the latter being arranged to unidirectionally drive the intermediate lever (52) in the closing direction when the coil (36) is energized, and to return to the inactive position after de-energization of the coil (36). 7. Disjoncteur télécommandé selon la revendication 6, caractérisé par le fait que la barrette (20) d'accouplement des manettes (18) s'étend parallèlement à l'axe (54) de pivotement du tambour (50) et du levier intermédiaire (52), et à l'axe (66) du galet (62) de renvoi du câble (48).7. Remote controlled circuit breaker according to claim 6, characterized in that the bar (20) for coupling the levers (18) extends parallel to the pivot axis (54) of the drum (50) and the intermediate lever ( 52), and to the axis (66) of the roller (62) for returning the cable (48). 8. Disjoncteur télécommande selon l'une des revendications 1 à 7, caractérisé par le fait que le dispositif de cadenassage (74) comporte un coulisseau (76) verrouillable susceptible de bloquer le tambour (50) en position inactive et de condamner l'alimentation de la bobine (36) de l'électro-aimant de fermeture (34).8. Remote control circuit breaker according to one of claims 1 to 7, characterized in that the padlocking device (74) comprises a lockable slide (76) capable of blocking the drum (50) in the inactive position and of blocking the supply of the coil (36) of the closing electromagnet (34).
EP85400142A 1984-02-14 1985-01-28 Remote control auxiliary block for an electric-circuit breaker Expired EP0161945B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85400142T ATE34486T1 (en) 1984-02-14 1985-01-28 REMOTE CONTROL AUXILIARY UNIT OF AN ELECTRICAL CIRCUIT BREAKER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8402323A FR2559616B1 (en) 1984-02-14 1984-02-14 AUXILIARY BLOCK FOR REMOTE CONTROL OF AN ELECTRIC CIRCUIT BREAKER
FR8402323 1984-02-14

Publications (2)

Publication Number Publication Date
EP0161945A1 true EP0161945A1 (en) 1985-11-21
EP0161945B1 EP0161945B1 (en) 1988-05-18

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EP85400142A Expired EP0161945B1 (en) 1984-02-14 1985-01-28 Remote control auxiliary block for an electric-circuit breaker

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EP (1) EP0161945B1 (en)
AT (1) ATE34486T1 (en)
DE (1) DE3562840D1 (en)
FR (1) FR2559616B1 (en)

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EP1220259A2 (en) * 2000-12-28 2002-07-03 Eaton Corporation Fast acting electrically powered operator for transfer switch and transfer switch incorporating same
CN103531408A (en) * 2013-10-28 2014-01-22 李小涛 Automatic low-voltage circuit breaker closing device and automatic closing method by using device after no-voltage release
CN103794419A (en) * 2014-01-17 2014-05-14 上海磊跃自动化设备有限公司 Intelligent control device for calibration type low-voltage circuit breaker
CN104134589A (en) * 2014-07-17 2014-11-05 正泰集团股份有限公司 Low-voltage circuit breaker with residual current trip device
CN108648929A (en) * 2018-05-25 2018-10-12 国网浙江省电力有限公司温州供电公司 Portable remote emergency brake-dividing device
CN111082516A (en) * 2019-07-25 2020-04-28 安徽美通电力科技有限公司 Remote breaker data protection method based on Internet of things card
CN112133616A (en) * 2020-10-27 2020-12-25 安徽通球智能化科技有限公司 Plastic shell type circuit breaker capable of achieving non-contact opening and closing

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FR2684233B1 (en) * 1991-11-22 1993-12-31 Merlin Gerin ELECTROMAGNETIC ACTUATION DEVICE INCORPORATED IN A REMOTE CONTROL BLOCK.
EP1950784B1 (en) * 2007-01-24 2014-01-01 Bticino S.p.A. Reset device for a safety electrical device with reduced reset time
WO2012090037A1 (en) * 2010-12-31 2012-07-05 Abb Technology Ltd Circuit breaker
CN105428105A (en) * 2013-08-02 2016-03-23 吴红平 Working method of remote control operation mechanism of miniature low-voltage switch
CN112599369B (en) * 2020-12-03 2023-07-28 广东电网有限责任公司 Emergency brake separating device of high-voltage circuit breaker
CN113421791B (en) * 2021-06-22 2022-06-21 广东电网有限责任公司 Adjustable fixing support for emergency brake-separating device

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1220259A2 (en) * 2000-12-28 2002-07-03 Eaton Corporation Fast acting electrically powered operator for transfer switch and transfer switch incorporating same
EP1220259A3 (en) * 2000-12-28 2004-03-17 Eaton Corporation Fast acting electrically powered operator for transfer switch and transfer switch incorporating same
CN103531408A (en) * 2013-10-28 2014-01-22 李小涛 Automatic low-voltage circuit breaker closing device and automatic closing method by using device after no-voltage release
CN103531408B (en) * 2013-10-28 2015-09-30 李小涛 Low-voltage circuit breaker automatic switching-on device and the method for automatic closing after no-voltage trip thereof
CN103794419A (en) * 2014-01-17 2014-05-14 上海磊跃自动化设备有限公司 Intelligent control device for calibration type low-voltage circuit breaker
CN104134589A (en) * 2014-07-17 2014-11-05 正泰集团股份有限公司 Low-voltage circuit breaker with residual current trip device
CN108648929A (en) * 2018-05-25 2018-10-12 国网浙江省电力有限公司温州供电公司 Portable remote emergency brake-dividing device
CN111082516A (en) * 2019-07-25 2020-04-28 安徽美通电力科技有限公司 Remote breaker data protection method based on Internet of things card
CN112133616A (en) * 2020-10-27 2020-12-25 安徽通球智能化科技有限公司 Plastic shell type circuit breaker capable of achieving non-contact opening and closing
CN112133616B (en) * 2020-10-27 2023-10-20 贵州众联新能源科技有限公司 Plastic shell type circuit breaker capable of realizing non-contact switching-on and switching-off

Also Published As

Publication number Publication date
EP0161945B1 (en) 1988-05-18
FR2559616B1 (en) 1986-05-30
DE3562840D1 (en) 1988-06-23
FR2559616A1 (en) 1985-08-16
ATE34486T1 (en) 1988-06-15

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