EP0108678A1 - Remotely controlled current switching device - Google Patents

Remotely controlled current switching device Download PDF

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Publication number
EP0108678A1
EP0108678A1 EP83402080A EP83402080A EP0108678A1 EP 0108678 A1 EP0108678 A1 EP 0108678A1 EP 83402080 A EP83402080 A EP 83402080A EP 83402080 A EP83402080 A EP 83402080A EP 0108678 A1 EP0108678 A1 EP 0108678A1
Authority
EP
European Patent Office
Prior art keywords
remote control
contact arm
lever
contacts
open position
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
EP83402080A
Other languages
German (de)
French (fr)
Other versions
EP0108678B1 (en
Inventor
Gérard Terrier
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 AT83402080T priority Critical patent/ATE19838T1/en
Publication of EP0108678A1 publication Critical patent/EP0108678A1/en
Application granted granted Critical
Publication of EP0108678B1 publication Critical patent/EP0108678B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip
    • 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
    • H01H2071/665—Power reset mechanisms the reset mechanism operating directly on the normal manual operator, e.g. electromagnet pushes manual release lever back into "ON" position

Definitions

  • the invention relates to a low voltage current cutoff device having a movable contact carried by a tilting contact arm and cooperating in the closed position with a fixed contact, said contact arm being subjected to the action of a spring. biasing the contact arm selectively in two stable positions, one for closing and the other for opening the contacts of the device, to the exclusion of any other intermediate position and a high endurance remote control mechanism having a balance pivoting cooperating with said spring to suddenly switch said movable contact arm from the closed position to the open position and vice versa following a remote control command.
  • the device according to the present invention is characterized in that it further comprises an automatic tripping mechanism in the event of overload and / or fault cooperating with said movable contact arm to move the latter in the open position while controlling a fault current and to maintain the movable contact arm in the open position independently of the position of the remote control mechanism as long as the trigger mechanism is in the triggered position, and a manual reset member of the trigger mechanism to authorize in the armed position of the latter a remote-controlled closure of the device.
  • the remote control mechanism and the triggering mechanism are independent of each other but they both act on the same movable contact, the connection between the remote control mechanism and the movable contact being arranged so as not to hinder an action of the mechanism. trigger.
  • the high endurance remote control mechanism is capable of carrying out several tens of thousands of operations while the tripping mechanism has the characteristics of a circuit breaker in this case sufficient energy and rapidity to cut off a current of short circuit.
  • Circuit breakers are known which are equipped with an electric control allowing remote control of closing and / or opening.
  • the electrical control acts directly on the lever or on the circuit breaker mechanism which is designed for a limited number of operations, for example a few thousand.
  • These remote-controlled circuit breakers can be used in certain special cases, for example for centralizing orders, but they are unable to provide intensive remote control service.
  • the movable contact arm and the remote control pendulum constitute a bistable click assembly, the displacement of one of the elements causing that of the other, so that they always occupy the same position. Whatever the contact opening mode, the balance is correctly positioned for a successive closing command.
  • the trip mechanism After a fault trip, the trip mechanism must be reset by actuating a reset lever to allow a closing remote control.
  • the lever automatically comes to the open position when the contacts are tripped on tripping, but it can only come to this position if the contacts are effectively separated.
  • the position of the lever in the open position is a visible and reliable indication of the opening of the contacts.
  • the device comprises, according to a development of the invention, an electromagnetic trip device with extractor acting on the movable contact to move it quickly to the open position during a trip on fault. Tripping on overload is ensured by a bimetallic strip in the usual manner, the arc being transferred into a breaking chamber associated with the contacts.
  • All the constituent elements are housed in a molded case, for example of the modular system commercially known as MULTI 9, the pole pitch being 18 mm.
  • the device can of course include several contiguous poles.
  • the actual remote control actuator is housed in an independent molded case of the same profile, rigidly coupled to the cut-off block to form a one-piece assembly.
  • This remote control is advantageously of the remote control type, well known in itself, causing a change of position at each control pulse. It can be of a different type, for example with two electromagnets, one for closing, the other for opening, or with a single electromagnet associated with a return spring.
  • the remote control unit is equipped with an emergency control handle, which replaces the remote control for manual opening or closing of the device.
  • the reset lever is arranged to allow a manual control of opening of the contacts comparable to a trip- due to a fault which neutralizes the remote control mechanism.
  • This handle achieves a reliable sectioning and to avoid unnecessary handling the handle is shaped to require an actuation tool.
  • a cut-off device represented by the general reference 10, comprises a molded housing 12 in profile corresponding to the modular system commercially known as MULTI 9.
  • MULTI 9 modular system commercially known as MULTI 9.
  • Several single-pole blocks 10 can be assembled or joined to form a multipolar device, each block having its individual housing 12 or the assembly being assembled in a single multipolar housing. Only one of the poles of the device is described in detail below, the others being exactly identical.
  • the housing 12 there is a fixed contact 14 connected by a conductor 16 to a current arrival terminal 18 as well as a movable contact 20 carried by a contact arm 22, pivotally mounted on a fixed pivot 24 secured to the housing 12.
  • the movable contact 20 is electrically connected by a braid 26 to the input of a trip coil 28, the output of which is connected by a braid 30 to a bimetallic strip 32 connected to the opposite terminal 34.
  • a braid 26 In the closed position of the contacts 14, 20, shown in FIG. 1, the current entering at a given time through terminal 18 passes through the closed contacts 14, 20, the coil 28 and the bimetallic strip 32 before exiting through the opposite terminal 34.
  • the circuit is interrupted.
  • the movable contact arm 22 extends beyond the articulation 24 and at its end 36 opposite the contact 20 is anchored a tension spring 38 whose opposite end 40 is anchored to a pivoting lever or pendulum 42 mounted for rotation on a fixed axis 44 integral with the housing 12.
  • the spring 38 exerts on the contact arm 22 a moment tending to pivot the arm 22 in the trigonometric direction in support of the movable contact 20 on the fixed contact 14.
  • the line of action of the spring 38 moves to cross a neutral point corresponding to the alignment of the points 3 6 , 40, 24 and reverse the moment acting on the contact arm 22, which suddenly moves in the open position, shown in the figure 2.
  • the opening of the mo contact arm bile 22 is limited by a fixed stop 46. Reverse pivoting of the lever 42 in the direction indicated by the arrow I, causes after passage from neutral a tilting of the contact arm 22 and a closing of the contacts 14, 20.
  • the assembly contact arm 22, spring 38 and pivoting lever 42 constitutes a bistable assembly allowing a remote control d opening and closing of the contacts 14, 20, and hereinafter referred to as the remote control mechanism 48.
  • a trigger mechanism 50 having an electromagnetic trigger with a coil 28 and a thermal bimetal trigger 32.
  • a plunger core 52 Inside the coil 28 is slidably mounted a plunger core 52, cooperating in the attracted position with a striker 54 pivoting a trigger bar 56.
  • the plunger core 52 carries an extractor 58 whose head 60 strikes and pulls the contact arm 22 in the open position during an attraction of the plunger core 52.
  • the bimetallic strip 32 cooperates with the trigger bar 56 in the event of an overload (see fig. 3), so as to pivot the latter clockwise and to release a catch 62 from a hook 64 mounted for rotation on a fixed pivot 66 of the housing 12.
  • the hook 64 in the form of a bent lever carries at its opposite end a slide 68 in which is engaged a finger 70 secured to a lever 72 of a toggle 74.
  • the finger 70 is also engaged in a slide era 76 carried by one of the arms of a lever or of a pivoting part 78 mounted for free rotation on the pivot 24 coaxially with the contact arm 22.
  • the part 78 has two other arms, one of which carries at its end a stop 80 for actuating the contact arm 22, and the other of which cooperates at its end 82 with a spiral spring 84 for triggering.
  • the second lever 86 of the toggle joint 74 belongs to a reset lever 88 rotatably mounted on a fixed pivot 90.
  • a return spring 92 biases the lever 88 in the counterclockwise direction, the stroke of the lever 88 being limited by stops formed by the ends of the window for passage of the lever 88 through the housing 12.
  • spring 84 tends to rotate the part 78 in the direction of rotation of the needles of a watch, this rotation being prevented by the toggle 74 which is in a position beyond dead center preventing any movement upwards in the figure of the finger 70 under the action of the slide 76.
  • the stop 80 is separated from the contact arm 22 by a clearance "j" preventing any action on the contact arm 22 in the closed position of the contacts 14, 20.
  • FIGS. 3 and 4 illustrate this tripping phase and the final opening on tripping position in which the hook 64 has returned to the hooked position under the action of a return spring 94.
  • the pivoting of the contact arm 22 under the action of the spring 84 causes the anchor point 36 to move and, after passing the neutral point corresponding to the alignment of the points 44, 36, 40, moves the lever pivoting 42 in the open position, shown in FIGS. 2 and 4.
  • the spring 84 maintains, by means of the pivoting part 78, the contact arm 22 in the open position independently of the remote control mechanism 48.
  • the pivoting lever 42 is returned by the spring 38 to its initial position of opening.
  • the reset of the trigger mechanism 50 is achieved by pivoting the lever 88 clockwise causing an extension of the toggle 74 with passing the neutral point forcing the finger 70 to slide in the slide 68 by pushing towards the bottom of the slide 76.
  • This displacement of the slide 76 implies a rotation of the part 78 in a counterclockwise direction against the force 84 towards the initial position of the stop 50.
  • the contacts 14, 20 are arranged laterally at the entrance to a breaking chamber with deionization plates 96, an arc guide 98 connected to the fixed contact 14 facilitating the displacement of the drawn arc between the separate contacts 14, 20 to the breaking chamber 96 in the usual manner in the circuit breakers.
  • a remote control block 100 having a molded housing 102 of the same profile (FIG. 6). Inside the housing 102 is housed an electromagnet 104 whose plunger core 106 acts on a pivoting lever 108 articulated by its end on a fixed point 109 of the housing 102.
  • the lever 108 carries a pusher 110 whose end cooperates selectively with shoulders 11i, 114 of a rocker 116, rotatably mounted on a fixed axis 118. During this movement the pusher 110 pivots slightly against a restoring force provided by a spring 120.
  • the lever 108 and the pusher 110 are returned to the original position ready for a new maneuver when the electromagnet 104 is energized. During this new maneuver the pusher 110 cooperates with shoulder 114 to rotate flip-flop 116 in the opposite direction.
  • the movement of the rocker 116 is transmitted by the linkage 122 to a pivoting lever 124 rotatably mounted on a fixed axis 126.
  • the pivoting lever 124 carries an arm 128, the end of which comprises a finger 130 passing through the adjoining walls of the housings 12 , 102, which straddles the pivoting lever or balance 42 of the cut-off block 10, so as to mechanically secure the balance 42 and the rocker 116.
  • the axes 44, 126 are substantially aligned.
  • the molded housing 102 includes connection terminals 132 for the remote control actuation wires of the electromagnet 104.
  • the bimetallic strip 32 deflects to the right in FIG. 3 to rotate the trigger bar 56 in the release direction of the hook 64.
  • the hook 64 is also released during a short circuit detected by the coil 28 which attracts the plunger core 52 and pushes by the pusher 54 the trigger bar 56 in the direction of release of the hook 64.
  • the connection between the toggle joint 74 and the slide 76 is broken and the part 78 is rotated in a clockwise direction by the spring 84, the stop 50 pushing the movable contact arm 22 in the open position.
  • the large force of the spring 84 allows rapid movement of the movable contact arm 22 aided in the event of a short circuit by the action of the extractor 58 integral with the plunger core 52.
  • the spring 84 maintains the movable contact 22 in the open position independently of any remote control order, the spring 38 being unable to overcome the force of the spring 84.
  • the lever 88 In the open release position, shown in FIG. 4, the lever 88 has come to the open position while the hook 64 is again hooked . Restoring the device to service requires manual intervention, in this case resetting by tilting the lever 88 in the armed position.
  • the lever 88 During an intervention on the circuit it is possible to carry out the sectioning by moving, for example using a tool, the lever 88 from the armed position to the open position. This pivoting causes the toggle 74 to break and the stop 80 to pivot under the action of the spring 84. If the contacts 14, 20 are in the closed position they are automatically brought into the open position by the action of the stop 80 If the contacts 14, 20 were already in the open position, the stop 80 keeps the contact arm 22 in the open position preventing any closure of the contacts 14, 20, in particular by the remote control mechanism 48. The position of the lever 88 in position open constitutes a reliable indication of the opening of the contacts 14, 20.
  • the assembly is particularly simple and the fact that the remote control mechanism 48 and the trigger mechanism 50 work independently of one another makes it possible to adapt these mechanisms to their respective remote control and protection functions.
  • the set can be accommodated in a standard circuit breaker or miniature switch box for easy incorporation into a distribution box or panel.
  • control unit can be produced in a different way and include, for example, two electromagnets, one opening and the other closing, or any other mechanism for actuating the pivoting lever 42.
  • control block would be incorporated into the cut-off block, or that in which any manual operation would be excluded.

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  • Breakers (AREA)
  • Selective Calling Equipment (AREA)
  • Power Steering Mechanism (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

A low voltage circuit breaker in a moulded case comprises a breaker unit (10) and a remote control unit coupled to it that controls the swing of a bistable movable contact (22) housed in the breaker unit. A trip mechanism (50) cooperates with movable contact (22) in the case of a fault to swing movable contact (22) into open circuit position independently of the remote control mechanism (48). A resetting handle (88) must be actuated in order to render the circuit breaker reoperative.

Description

L'invention est relative à un appareil de coupure de courant basse tension ayant un contact mobile porté par un bras de contact basculant et coopérant en position de fermeture avec un contact fixe, ledit bras de contact étant soumis à l'action d'un ressort sollicitant le bras de contact sélectivement en deux positions stables, l'une de fermeture et l'autre d'ouverture des contacts de l'appareil, à l'exclusion de toute autre position intermédiaire et un mécanisme de télécommande à haute endurance ayant un balancier pivotant coopérant avec ledit ressort pour basculer brusquement ledit bras de contact mobile de la position fermé vers la position ouvert et inversement à la suite d'un ordre de télécommande.The invention relates to a low voltage current cutoff device having a movable contact carried by a tilting contact arm and cooperating in the closed position with a fixed contact, said contact arm being subjected to the action of a spring. biasing the contact arm selectively in two stable positions, one for closing and the other for opening the contacts of the device, to the exclusion of any other intermediate position and a high endurance remote control mechanism having a balance pivoting cooperating with said spring to suddenly switch said movable contact arm from the closed position to the open position and vice versa following a remote control command.

Les installations électriques, notamment de distribution terminale, comportent fréquemment des appareils télécommandés du genre mentionné, en particulier des télérupteurs ou contacteurs qui permettent une commande à distance manuelle ou automatique de mise en service ound'arret d'un circuit d'alimentation d'une charge. La protection du circuit est assurée par un appareil séparé en l'occurrence un disjoncteur qui s'ouvre automatiquement en cas de surcharge ou de défaut. La présente invention part de la constatation que ces appareils sont généralement montés sur un même tableau . et qu'un regroupement des deux fonctions de télécommande et de protection dans un même appareil permettrait des réductions notables des coûts de fabrication et d'installation.Electrical installations, in particular of terminal distribution, frequently include remote-controlled devices of the type mentioned, in particular remote control switches or contactors which allow manual or automatic remote control to commission or stop a supply circuit of a charge. The circuit is protected by a separate device, in this case a circuit breaker which opens automatically in the event of an overload or fault. The present invention starts from the observation that these devices are generally mounted on the same panel. and that combining the two remote control and protection functions in the same device would allow significant reductions in manufacturing and installation costs.

L'appareil selon la présente invention est caractérisé par le fait qu'il comporte de plus un mécanisme de déclenchement automatique en cas de surcharge et/ou de défaut coopérant avec ledit bras de contact mobile pour déplacer ce dernier en position d'ouverture en maîtrisant un courant de défaut et pour maintenir le bras de contact mobile en position d'ouverture indépendamment de la position du mécanisme de télécommande tant que le mécanisme de déclenchement est en position déclenchée, et un organe manuel de réarmement du mécanisme de déclenchement pour autoriser en position armé de ce dernier une fermeture télécommandée de l'appareil.The device according to the present invention is characterized in that it further comprises an automatic tripping mechanism in the event of overload and / or fault cooperating with said movable contact arm to move the latter in the open position while controlling a fault current and to maintain the movable contact arm in the open position independently of the position of the remote control mechanism as long as the trigger mechanism is in the triggered position, and a manual reset member of the trigger mechanism to authorize in the armed position of the latter a remote-controlled closure of the device.

Le mécanisme de télécommande et le mécanisme de déclenchement sont indépendants l'un de l'autre mais ils agissent tous deux sur le même contact mobile, la liaison entre le mécanisme de télécommande et le contact mobile étant agencée pour ne pas entraver une action du mécanisme de déclenchement. Le mécanisme de télécommande à haute endurance est capable d'assurer plusieurs dizaines de milliers de manoeuvres tandis que le mécanisme de déclenchement présente les caractéristiques d'un disjoncteur en l'occurrence d'énergie et de rapidité suffisantes à la coupure d'un courant de court-circuit.The remote control mechanism and the triggering mechanism are independent of each other but they both act on the same movable contact, the connection between the remote control mechanism and the movable contact being arranged so as not to hinder an action of the mechanism. trigger. The high endurance remote control mechanism is capable of carrying out several tens of thousands of operations while the tripping mechanism has the characteristics of a circuit breaker in this case sufficient energy and rapidity to cut off a current of short circuit.

On connaît des disjoncteurs équipés d'une commande électrique permettant une commande à distance de fermeture et/ ou d'ouverture. La commande électrique agit directement sur la manette ou sur le mécanisme du disjoncteur qui est conçu pour un nombre limité de manoeuvres, par exemple quelques milliers. Ces disjoncteurs télécommandés sont utilisables dans certains cas particuliers, par exemple de centralisation des commandes, mais ils sont incapables d'assurer un service intensif de télécommande. Il est d'autre part difficile et coûteux de réaliser des disjoncteurs susceptibles d'assurer un grand nombre de manoeuvres. En combinant selon l'invention dans un même appareil deux mécanismes indépendants, on conserve les avantages du mécanisme à faible énergie de télécommande et ceux du mécanisme à forte énergie de déclenchement ce dernier assurant un nombre limité de manoeuvres.Circuit breakers are known which are equipped with an electric control allowing remote control of closing and / or opening. The electrical control acts directly on the lever or on the circuit breaker mechanism which is designed for a limited number of operations, for example a few thousand. These remote-controlled circuit breakers can be used in certain special cases, for example for centralizing orders, but they are unable to provide intensive remote control service. On the other hand, it is difficult and expensive to produce circuit breakers capable of ensuring a large number of operations. By combining according to the invention in the same device two independent mechanisms, the advantages of the low energy remote control mechanism and those of the high trigger energy mechanism are preserved, the latter ensuring a limited number of operations.

Le bras de contact mobile et le balancier de télécommande constituent un ensemble bistable à déclic, le déplacement de l'un des éléments entraînant celui de l'autre, de manière qu'ils occupent toujours la même position. Quel que soit le mode d'ouverture des contacts le balancier est positionné correctement pour une commande successive de fer- neture.The movable contact arm and the remote control pendulum constitute a bistable click assembly, the displacement of one of the elements causing that of the other, so that they always occupy the same position. Whatever the contact opening mode, the balance is correctly positioned for a successive closing command.

Après un déclenchement sur défaut le mécanisme de déclenchement doit être réarmé par actionnement d'une manette de réarmement pour permettre une télécommande de fermeture. La manette vient automatiquement en position d'ouverture lors d'une séparation des contacts sur déclenchement, mais elle ne peut venir en cette position que si les contacts sont effectivement séparés. La position de la manette en position ouvert constitue une indication visible et fiable de l'ouverture des contacts.After a fault trip, the trip mechanism must be reset by actuating a reset lever to allow a closing remote control. The lever automatically comes to the open position when the contacts are tripped on tripping, but it can only come to this position if the contacts are effectively separated. The position of the lever in the open position is a visible and reliable indication of the opening of the contacts.

L'appareil comporte, selon un développement de l'invention, un déclencheur électromagnétique à extracteur agissant sur le contact mobile pour le déplacer rapidement en position ouvert lors d'un déclenchement sur défaut. Le déclenchement sur surcharge est assuré par une bilame de la manière usuelle, l'arc étant transféré dans une chambre de coupure associée aux contacts.The device comprises, according to a development of the invention, an electromagnetic trip device with extractor acting on the movable contact to move it quickly to the open position during a trip on fault. Tripping on overload is ensured by a bimetallic strip in the usual manner, the arc being transferred into a breaking chamber associated with the contacts.

L'ensemble des éléments constitutifs est logé dans un boi- tier moulé, par exemple du système modulaire commercialement dénommé MULTI 9, le pas polaire étant de 18 mm. L'appareil peut bien entendu comporter plusieurs pôles accolés. L'actionneur de télécommande proprement dite est logé dans un boîtier moulé indépendant de même profil, accouplé rigidement au bloc de coupure pour constituer un ensemble monobloc. Cette télécommande est avantageusement du type télérupteur, bien connu en soi, provoquant un changement de position à chaque impulsion de commande. Elle peut être d'un type différent, par exemple à deux électro-aimants l'un de fermeture, l'autre d'ouverture ou à électro - aimant unique associé à un ressort de rappel. Le bloc télécommande est équipé d'une manette de commande de secours, qui se substitue à la télécommande pour une ouverture ou fermeture manuelle de l'appareil. Lors d'une intervention sur le circuit alimenté il est intéressant de s'affranchir de la télécommande pour éviter toute fermeture intempestive et à cet effet la manette de réarmement est agencée pour permettre une commande manuelle d'ouverture des contacts comparable à un déclenche- nent sur défaut qui neutralise le mécanisme de télécommande. Cette manette réalise un sectionnement fiable et pour éviter des manipulations inutiles la manette est conformée pour nécessiter un outil d'actionnement.All the constituent elements are housed in a molded case, for example of the modular system commercially known as MULTI 9, the pole pitch being 18 mm. The device can of course include several contiguous poles. The actual remote control actuator is housed in an independent molded case of the same profile, rigidly coupled to the cut-off block to form a one-piece assembly. This remote control is advantageously of the remote control type, well known in itself, causing a change of position at each control pulse. It can be of a different type, for example with two electromagnets, one for closing, the other for opening, or with a single electromagnet associated with a return spring. The remote control unit is equipped with an emergency control handle, which replaces the remote control for manual opening or closing of the device. During an intervention on the powered circuit it is advantageous to get rid of the remote control to avoid any untimely closing and for this purpose the reset lever is arranged to allow a manual control of opening of the contacts comparable to a trip- due to a fault which neutralizes the remote control mechanism. This handle achieves a reliable sectioning and to avoid unnecessary handling the handle is shaped to require an actuation tool.

Il est facile de voir que les applications de ce nouvel appareil sont multiples en allant de la simple commande d'un circuit d'éclairage à la commande automatique par automate programmable de machines électriques. Il s'intègre dans un système modulaire dont il respecte le gabarit et le pas.It is easy to see that the applications of this new device are multiple, ranging from the simple control of a lighting circuit to the automatic control by programmable logic controller of electric machines. It is integrated into a modular system whose size and pitch it respects.

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:

  • les figures 1a et b sont des vues schématiques en élévation et de côté d'un pôle d'un appareil de coupure selon l'invention, représenté en position fermé;
  • les figures 2, 3 et 4 sont des vues analogues à celle de la fiqure 1a représentant le pôle respectivement en position ouvert par le bloc de télécommande, en cours de déclenchement et en position déclenchée;
  • la fig. est une vue en élévation d'un mode de réalisation du pôle selon la fig. 1;
  • la fig. 6 est une vue schématique du bloc de commande selon l'invention;
  • la figo 7 est une vue de face des blocs accolés de coupure et de commande.
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:
  • Figures 1a and b are schematic elevational and side views of a pole of a switching device according to the invention, shown in the closed position;
  • Figures 2, 3 and 4 are views similar to that of Figure 1a showing the pole respectively in the open position by the remote control unit, during triggering and in the triggered position;
  • fig. is an elevational view of an embodiment of the pole according to FIG. 1;
  • fig. 6 is a schematic view of the control unit according to the invention;
  • Fig o 7 is a front view of the adjoining cut-off and control blocks.

Sur les figures, un appareil de coupure, représenté par le repère général 10, comporte un boîtier moulé 12 de profil correspondant au système modulaire commercialement dénommé MULTI 9. Plusieurs blocs unipolaires 10 peuvent être assemblés ou accolés pour constituer un appareil multipolaire, chaque bloc ayant son boîtier individuel 12 ou l'ensemble étant rassemblé dans un boîtier unique multipolaire. Seul l'un des pôles de l'appareil est décrit en détail ci-dessous, les autres étant exactement identiques. Dans le boîtier 12 est lcgé un contact fixe 14 relié par un conducteur 16 à une borne d'arrivée de courant 18 ainsi qu'un contact mobile 20 porté par un bras de contact 22, monté à pivotement sur un pivot fixe 24 solidaire du boÎtier 12. Le contact mobile 20 est relié électriquement par une tresse 26 à l'entrée d'une bobine de déclenchement 28, dont la sortie est reliée par une tresse 30 à une bilame 32 connectée à la borne opposée 34. En position fermé des contacts 14, 20, représentée sur la figure 1, le courant entrant à un instant donné par la borne 18 traverse les contacts fermés 14, 20, la bobine 28 et la bilame 32 avant de sortir par la borne opposée 34. En position ouvert des contacts 20, 14, représentéeIn the figures, a cut-off device, represented by the general reference 10, comprises a molded housing 12 in profile corresponding to the modular system commercially known as MULTI 9. Several single-pole blocks 10 can be assembled or joined to form a multipolar device, each block having its individual housing 12 or the assembly being assembled in a single multipolar housing. Only one of the poles of the device is described in detail below, the others being exactly identical. In the housing 12 there is a fixed contact 14 connected by a conductor 16 to a current arrival terminal 18 as well as a movable contact 20 carried by a contact arm 22, pivotally mounted on a fixed pivot 24 secured to the housing 12. The movable contact 20 is electrically connected by a braid 26 to the input of a trip coil 28, the output of which is connected by a braid 30 to a bimetallic strip 32 connected to the opposite terminal 34. In the closed position of the contacts 14, 20, shown in FIG. 1, the current entering at a given time through terminal 18 passes through the closed contacts 14, 20, the coil 28 and the bimetallic strip 32 before exiting through the opposite terminal 34. In the open position of the contacts 20, 14, shown

sur la figure 2, le circuit est interrompu. Le bras de contact mobile 22 se prolonge au-delà de l'articulation 24 et à son extrémité 36 opposée au contact 20 est ancré un ressort de traction 38 dont l'extrémité opposée 40 est ancrée à un levier ou balancier pivotant 42 monté à rotation sur un axe fixe 44 solidaire du boîtier 12. Dans la position de fermeture des contacts 14, 20, représentée sur la figure 1, le ressort 38 exerce sur le bras de contact 22 un moment tendant à faire pivoter le bras 22 dans le sens trigonométrique en appui du contact mobile 20 sur le contact fixe 14. Lors d'un pivotement du levier 42, dans le sens trigonométrique indiqué par la flèche 0 sur la figure 1 par un dispositif de commande qui sera décrit ci-dessous, la ligne d'action du ressort 38 se déplace pour franchir un point mort correspondant à l'alignement des points 36, 40, 24 et inverser le moment agissant sur le bras de contact 22, qui se déplace brusquement en position d'ouverture, représentée sur la figure 2. L'ouverture du bras de contact mobile 22 est limitée par une butée fixe 46. Un pivotement inverse du levier 42 dans le sens indiqué par la flèche I, provoque après passage du point mort un basculement du bras de contact 22 et une fermeture des contacts 14, 20. L'ensemble bras de contact 22,ressort 38 et levier pivotant 42, constitue un ensemble bistable permettant une télécommande d'ouverture et de fermeture des contacts 14, 20, et dénommée par la suite mécanisme de télécommande 48.in Figure 2, the circuit is interrupted. The movable contact arm 22 extends beyond the articulation 24 and at its end 36 opposite the contact 20 is anchored a tension spring 38 whose opposite end 40 is anchored to a pivoting lever or pendulum 42 mounted for rotation on a fixed axis 44 integral with the housing 12. In the closed position of the contacts 14, 20, shown in FIG. 1, the spring 38 exerts on the contact arm 22 a moment tending to pivot the arm 22 in the trigonometric direction in support of the movable contact 20 on the fixed contact 14. When the lever 42 is pivoted, in the counterclockwise direction indicated by the arrow 0 in FIG. 1 by a control device which will be described below, the line of action of the spring 38 moves to cross a neutral point corresponding to the alignment of the points 3 6 , 40, 24 and reverse the moment acting on the contact arm 22, which suddenly moves in the open position, shown in the figure 2. The opening of the mo contact arm bile 22 is limited by a fixed stop 46. Reverse pivoting of the lever 42 in the direction indicated by the arrow I, causes after passage from neutral a tilting of the contact arm 22 and a closing of the contacts 14, 20. The assembly contact arm 22, spring 38 and pivoting lever 42, constitutes a bistable assembly allowing a remote control d opening and closing of the contacts 14, 20, and hereinafter referred to as the remote control mechanism 48.

A l'intérieur du boîtier 12 est logé un mécanisme de déclenchement 50 ayant un déclencheur électromagnétique à bobine 28 et un déclencheur thermique à bilame 32. A l'intérieur de la bobine 28 est monté à coulissement un noyau plongeur 52, coopérant en position attirée avec un percuteur 54 faisant pivoter une barre de déclenchement 56. Le noyau plongeur 52 porte un extracteur 58 dont la tête 60 vient percuter et tirer le bras de contact 22 en position d'ouverture lors d'une attraction du noyau plongeur 52. La bilame 32 coopère avec la barre de déclenchement 56 en cas de surcharge (voir fig. 3), de manière à faire pivoter cette dernière dans le sens des aiguilles d'une montre et à libérer un accrochage 62 d'un crochet 64 monté à rotation sur un pivot fixe 66 du boîtier 12. Le crochet 64 en forme de levier coudé porte à son extrémité opposée une glissière 68 dans laquelle est engagé un doigt 70 solidaire d'un levier 72 d'une genouillère 74. Le doigt 70 est également engagé dans une glissière 76 portée par l'un des bras d'un levier ou d'une pièce pivotante 78 montée à rotation libre sur le pivot 24 coaxialement au bras de contact 22. La pièce 78 présente deux autres bras dont l'un porte à son extrémité une butée 80 d'actionnement du bras de contact 22, et dont l'autre coopère en son extrémité 82 avec un ressort à spirales 84 de déclenchement. Le deuxième levier 86 de la genouillère 74 appartient à une manette de réarmement 88 montée à rotation sur un pivot fixe 90. Un ressort de rappel 92 sollicite la manette 88 dans le sens trigonométrique, la course de la manette 88 étant limitée par des butées constituées par les extrémités de la fenêtre de passage de la manette 88 à travers le boîtier 12. Dans la position réarmé de la manette 88 selon les fiq. 1 et 2, le ressort 84 tend à faire pivoter la pièce 78 dans le sens de rotation des aiguilles d'une montre, cette rotation étant empêchée par la genouillère 74 qui se trouve dans une position de dépassement de point mort empêchant tout déplacement vers le haut sur la figure du doigt 70 sous l'action de la glissière 76. Dans cette position, la butée 80 est séparée du bras de contact 22 par un jeu "j" empêchant toute action sur le bras de contact 22 en position fermé des contacts 14, 20. Lors d'un pivotement de la barre de déclenchement 56 sous l'action d'une déflexion de la bilame 32 lors d'une surcharge ou sous l'action du noyau plongeur 52 lors d'un court-circuit, le crochet 64 est libéré ce qui rompt la liaison cinématique entre les glissières 68, 76 et le doigt 70. Cette rupture libère la glissière 76 et la pièce pivotante 78 tourne sous l'action du ressort 84 dans le sens des aiguilles d'une montre en entrainant par la butée 80 le bras de contact 22 vers la position d'ouverture. La rupture de la liaison 68, 70, 76 autorise également un déplacement du doigt 70 et un brisage de la genouillère 74 sous l'action du ressort de rappel 92, qui déplace la manette 88 en position d'ouverture.Inside the housing 12 is housed a trigger mechanism 50 having an electromagnetic trigger with a coil 28 and a thermal bimetal trigger 32. Inside the coil 28 is slidably mounted a plunger core 52, cooperating in the attracted position with a striker 54 pivoting a trigger bar 56. The plunger core 52 carries an extractor 58 whose head 60 strikes and pulls the contact arm 22 in the open position during an attraction of the plunger core 52. The bimetallic strip 32 cooperates with the trigger bar 56 in the event of an overload (see fig. 3), so as to pivot the latter clockwise and to release a catch 62 from a hook 64 mounted for rotation on a fixed pivot 66 of the housing 12. The hook 64 in the form of a bent lever carries at its opposite end a slide 68 in which is engaged a finger 70 secured to a lever 72 of a toggle 74. The finger 70 is also engaged in a slide era 76 carried by one of the arms of a lever or of a pivoting part 78 mounted for free rotation on the pivot 24 coaxially with the contact arm 22. The part 78 has two other arms, one of which carries at its end a stop 80 for actuating the contact arm 22, and the other of which cooperates at its end 82 with a spiral spring 84 for triggering. The second lever 86 of the toggle joint 74 belongs to a reset lever 88 rotatably mounted on a fixed pivot 90. A return spring 92 biases the lever 88 in the counterclockwise direction, the stroke of the lever 88 being limited by stops formed by the ends of the window for passage of the lever 88 through the housing 12. In the reset position of the lever 88 according to the fiq. 1 and 2, spring 84 tends to rotate the part 78 in the direction of rotation of the needles of a watch, this rotation being prevented by the toggle 74 which is in a position beyond dead center preventing any movement upwards in the figure of the finger 70 under the action of the slide 76. In this position, the stop 80 is separated from the contact arm 22 by a clearance "j" preventing any action on the contact arm 22 in the closed position of the contacts 14, 20. During a pivoting of the trigger bar 56 under the action of a deflection of the bimetallic strip 32 during an overload or under the action of the plunger core 52 during a short circuit, the hook 64 is released which breaks the kinematic connection between the slides 68, 76 and the finger 70. This rupture frees the slide 76 and the pivoting part 78 rotates under the action of the spring 84 in the clockwise direction by driving the stop arm 80 contact 22 to the open position. The rupture of the connection 68, 70, 76 also allows a displacement of the finger 70 and a breaking of the toggle 74 under the action of the return spring 92, which moves the lever 88 in the open position.

Les figures 3 et 4 illustrent cette phase de déclenchement et la position finale d'ouverture sur déclenchement dans laquelle le crochet 64 est revenu en position accroché sous l'action d'un ressort de rappel 94. Le pivotement du bras de contact 22 sous l'action du ressort 84,dont la force est notablement supérieure à celle du ressort 38, provoque un déplacement du point d'ancrage 36 et, après passage du point mort correspondant à l'alignement des points 44, 36, 40, déplace le levier pivotant 42 en position d'ouverture, représentée sur les figures 2 et 4. Dans la position d'ouverture sur déclenchement des contacts 14, 20, représentée à la figure 4, le ressort 84 maintient par l'intermédiaire de la pièce pivotante 78 le bras de contact 22 en position ouvert indépendamment du mécanisme de télécommande 48. Un ordre de fermeture télécommandé faisant pivoter le levier pivotant 42 dans le sens de rotation des aiguilles d'une montre reste sans effet sur le bras de contact 22 verrouillé par la force nettement supérieure du ressort 84. Dès la fin de l'ordre de fermeture, le levier pivotant 42 est rappelé par le ressort 38 dans sa position initiale d'ouverture.FIGS. 3 and 4 illustrate this tripping phase and the final opening on tripping position in which the hook 64 has returned to the hooked position under the action of a return spring 94. The pivoting of the contact arm 22 under the action of the spring 84, the force of which is considerably greater than that of the spring 38, causes the anchor point 36 to move and, after passing the neutral point corresponding to the alignment of the points 44, 36, 40, moves the lever pivoting 42 in the open position, shown in FIGS. 2 and 4. In the open position upon triggering of the contacts 14, 20, shown in FIG. 4, the spring 84 maintains, by means of the pivoting part 78, the contact arm 22 in the open position independently of the remote control mechanism 48. A remote control closing order that pivots the pivoting lever 42 in the direction of rotation of the The hands of a watch have no effect on the contact arm 22 locked by the clearly superior force of the spring 84. As soon as the closing order is completed, the pivoting lever 42 is returned by the spring 38 to its initial position of opening.

Le réarmement du mécanisme de déclenchement 50 est réalisé par pivotement de la manette 88 dans le sens des aiguilles d'une nontre provoquant une extension de la genouillère 74 avec dépassement du point mort forçant le doigt 70 à coulisser dans la glissière 68 en poussant vers le bas la glissière 76. Ce déplacement de la glissière 76 implique une rotation de la pièce 78 dans le sens trigonométrique à l'encontre de la force 84 vers la position initiale de la butée 50.The reset of the trigger mechanism 50 is achieved by pivoting the lever 88 clockwise causing an extension of the toggle 74 with passing the neutral point forcing the finger 70 to slide in the slide 68 by pushing towards the bottom of the slide 76. This displacement of the slide 76 implies a rotation of the part 78 in a counterclockwise direction against the force 84 towards the initial position of the stop 50.

Les contacts 14, 20 sont disposés latéralement à l'entrée d'une chambre de coupure à tôles de désionisation 96, un guide d'arc 98 relié au contact fixe 14 facilitant le déplacement de l'arc tiré entre les contacts séparés 14, 20 vers la chambre de coupure 96 de la manière usuelle dans les disjoncteurs.The contacts 14, 20 are arranged laterally at the entrance to a breaking chamber with deionization plates 96, an arc guide 98 connected to the fixed contact 14 facilitating the displacement of the drawn arc between the separate contacts 14, 20 to the breaking chamber 96 in the usual manner in the circuit breakers.

Au bloc de coupure 10 est accolé un bloc de télécommande 100 ayant un boîtier moulé 102 de même profil (fig. 6). A l'intérieur du boîtier 102 est logé un électro-aimant 104 dont le noyau plongeur 106 agit sur un levier pivotant 108 articulé par son extrémité sur un point fixe 109 du boîtier 102. Le levier 108 porte un poussoir 110 dont l'extrémité coopère sélectivement avec des épaulements 11i, 114 d'une bascule 116, montée à rotation sur un axe fixe 118. Au cours de ce mouvement le poussoir 110 pivote légèrement à l'encontre d'une force de rappel fournie par un ressort 120. Après césexcitation de l'électro-aimant 104, le levier 108 et le poussoir 110 sont rappelés en position d'origine prêts à une nouvelle manoeuvre lors d'une excitation de l'électro-aimant 104. Au cours de cette nouvelle manoeuvre le poussoir 110 coopère avec l'épaulement 114 pour faire pivoter la bascule 116 en direction opposée. Un tel fonctionnement est couramment utilisé dans les télérupteurs et il est inutile de le décrire plus en détail. Le mouvement de la bascule 116 est transmis par l'embiellage 122 à une manette pivotante 124 montée à rotation sur un axe fixe 126. La manette pivotante 124 porte un bras 128 dont l'extrémité comporte un doigt 130 traversant les parois accolées des boîtiers 12, 102, qui vient s'enfourcher dans le levier pivotant ou balancier 42 du bloc de coupure 10, de manière à solidariser mécaniquement le balancier 42 et la bascule 116. En position accolée des boîtiers 12, 102, les axes 44, 126 sont sensiblement alignés. Le boîtier moulé 102 comporte des bornes de connexion 132 des fils de télécommande d'actionnement de l'électro-aimant 104.To the cut-off block 10 is attached a remote control block 100 having a molded housing 102 of the same profile (FIG. 6). Inside the housing 102 is housed an electromagnet 104 whose plunger core 106 acts on a pivoting lever 108 articulated by its end on a fixed point 109 of the housing 102. The lever 108 carries a pusher 110 whose end cooperates selectively with shoulders 11i, 114 of a rocker 116, rotatably mounted on a fixed axis 118. During this movement the pusher 110 pivots slightly against a restoring force provided by a spring 120. After césexcitation of the electromagnet 104, the lever 108 and the pusher 110 are returned to the original position ready for a new maneuver when the electromagnet 104 is energized. During this new maneuver the pusher 110 cooperates with shoulder 114 to rotate flip-flop 116 in the opposite direction. Such an operation is commonly used in remote control switches and there is no need to describe it in more detail. The movement of the rocker 116 is transmitted by the linkage 122 to a pivoting lever 124 rotatably mounted on a fixed axis 126. The pivoting lever 124 carries an arm 128, the end of which comprises a finger 130 passing through the adjoining walls of the housings 12 , 102, which straddles the pivoting lever or balance 42 of the cut-off block 10, so as to mechanically secure the balance 42 and the rocker 116. In the adjoining position of the housings 12, 102, the axes 44, 126 are substantially aligned. The molded housing 102 includes connection terminals 132 for the remote control actuation wires of the electromagnet 104.

L'appareil de coupure selon l'invention fonctionne de la manière suivante :

  • En position armé de l'appareil, représentée aux figures 1 et 2, l'ouverture et la fermeture des contacts 14, 20 peut être télécommandée par excitation de l'électro-aimant 104 du bloc de télécommande 100. Un premier ordre de commande provoque le basculement de la bascule 116 dans le sens trigonométrique de la manière représentée sur la figure 6, et un entraînement correspondant du levier pivotant ou balancier 42 vers la position de fermeture, représentée sur la figure 1. Dès le passage du point mort, défini par l'alignement des points 36, 40, 24, le bras de contact mobile 22 pivote vers la position de fermeture.Après désexcitation de l'électro-aimant 104 le levier 108 et le poussoir 110 reviennent à leur position d'origine, la bascule 116 et le balancier 42 restant dans la position stable d'ouverture. Une nouvelle commande d'excitation de l'électro-aimant 104 provoque un pivotement en sens inverse de l'ensemble bascule 116, balancier 42 pour amener le bras de contact mobile 22 en position ouvert après franchissement du point mort d'alignement des points 36, 40, 24. Le mécanisme de déclenchement 50 n'intervient pas lors de ces manoeuvres télécommandées et le bras de contact mobile 22 bascule librement sous l'action du ressort 38. Un tel mécanisme à énergie de commande limitée peut facilement réaliser de nombreuses manoeuvres. La manette 124 constitue une commande de secours permettant une commande manuelle d'ouverture et de fermeture des contacts 14, 20.
The breaking device according to the invention operates in the following manner:
  • In the armed position of the device, shown in FIGS. 1 and 2, the opening and closing of the contacts 14, 20 can be remote-controlled by excitation of the electromagnet 104 of the remote control unit 100. A first command order causes the tilting of the rocker 116 in the trigonometric direction as shown in FIG. 6, and a corresponding drive of the pivoting lever or pendulum 42 towards the closed position, represented in FIG. 1. As soon as the neutral point is passed, defined by the alignment of the points 36, 40, 24, the movable contact arm 22 pivots towards the closed position. After the electromagnet 104 is deactivated, the lever 108 and the pusher 1 1 0 return to their original position, the rocker 116 and the pendulum 42 remaining in the stable open position. A new excitation command for the electromagnet 104 causes the rocker 116, balance 42 assembly to pivot in the opposite direction to bring the movable contact arm 22 to the open position after crossing the neutral point alignment point 36 , 40, 24. The trigger mechanism 50 does not intervene during these remote-controlled maneuvers and the movable contact arm 22 swings freely under the action of the spring 38. Such a mechanism with limited control energy can easily carry out numerous maneuvers. The handle 124 constitutes an emergency control allowing manual control of opening and closing of the contacts 14, 20.

Lors de l'apparition d'une surcharge, l'appareil étant en position fermé, la bilame 32 déflecte vers la droite sur la figure 3 pour faire pivoter la barre de déclenchement 56 dans le sens de libération du crochet 64. Le crochet 64 est également libéré lors d'un court-circuit détecté par la bobine 28 qui attire le noyau plongeur 52 et pousse par le poussoir 54 la barre de déclenchement 56 dans le sens de libération du crochet 64. Dès cette libération, la liaison entre la genouillère 74 et la glissière 76 est rompue et la pièce 78 est entrainée en rotation dans le sens des aiguilles d'une montre par le ressort 84, la butée 50 poussant le bras de contact mobile 22 en position d'ouverture. La force importante du ressort 84 permet un déplacement rapide du bras de contact mobile 22 aidé en cas de court-circuit par l'action de l'extracteur 58 solidaire du noyau plongeur 52. Le ressort 84 maintient le contact mobile 22 en position ouvert indépendamment de tout ordre de télécommande, le ressort 38 étant incapable de vaincre la force du ressort 84. En position ouvert de déclenchement, représentée à la figure 4, la manette 88 est venue en position d'ouverture tandis que le crochet 64 est à nouveau accroché. Une remise en service de l'appareil nécessite une intervention manuelle en l'occurrence un réarmement par basculement de la manette 88 en position armé. Ce basculement provoque une extension de la genouillère 74 et le doigt 70 guidé par la glissière 68 pousse la glissière 76 à l'encontre de la force du ressort 84 en position initiale de séparation du bras de contact mobile 22. La manette 88 et la genouillère 74 sont maintenues en position armé par la force exercée sur le doigt 70 par la glissière 76 maintenant.la genouillère 74 en position de dépassement du point mort. Après réarmement l'appareil est prêt pour de nouvelles manoeuvres télécommandées par le mécanisme 48 de la manière décrite ci- dessus.When an overload appears, the device being in the closed position, the bimetallic strip 32 deflects to the right in FIG. 3 to rotate the trigger bar 56 in the release direction of the hook 64. The hook 64 is also released during a short circuit detected by the coil 28 which attracts the plunger core 52 and pushes by the pusher 54 the trigger bar 56 in the direction of release of the hook 64. Upon this release, the connection between the toggle joint 74 and the slide 76 is broken and the part 78 is rotated in a clockwise direction by the spring 84, the stop 50 pushing the movable contact arm 22 in the open position. The large force of the spring 84 allows rapid movement of the movable contact arm 22 aided in the event of a short circuit by the action of the extractor 58 integral with the plunger core 52. The spring 84 maintains the movable contact 22 in the open position independently of any remote control order, the spring 38 being unable to overcome the force of the spring 84. In the open release position, shown in FIG. 4, the lever 88 has come to the open position while the hook 64 is again hooked . Restoring the device to service requires manual intervention, in this case resetting by tilting the lever 88 in the armed position. This tilting causes an extension of the toggle 74 and the finger 70 guided by the slide 68 pushes the slide 76 against the force of the spring 84 in the initial position of separation of the movable contact arm 22. The lever 88 and the toggle 74 are held in the cocked position by the force exerted on the finger 70 by the slide 76 now. The toggle 74 in the position beyond the neutral position. After rearming ment the device is ready for new maneuvers remotely controlled by the mechanism 48 as described above.

L'arc tiré entre les contacts 14, 20 lors d'un déclenchement sur surcharge ou court-circuit est soufflé vers la chambre de coupure à tôles 96 où il s'éteint rapidement. Il convient de noter qu'après une ouverture des contacts 14, 20 sur déclenchement le levier pivotant 42 est automatiquement amené en position correspondante d'ouverture permettant une télécommande de fermeture des contacts par excitation de l'électro-aimant 104.The arc drawn between the contacts 14, 20 during tripping on overload or short circuit is blown towards the sheet metal cutting chamber 96 where it quickly extinguishes. It should be noted that after opening of the contacts 14, 20 on release, the pivoting lever 42 is automatically brought into the corresponding opening position allowing a remote control for closing the contacts by energizing the electromagnet 104.

Lors d'une intervention sur le circuit il est possible de réaliser le sectionnement en déplaçant, par exemple à l'aide d'un outil, la manette 88 de la position armé vers la position ouvert. Ce pivotement provoque la brisure de la genouillère 74 et le pivotement de la butée 80 sous l'action du ressort 84. Si les contacts 14, 20 sont en position de fermeture ils sont automatiquement amenés en position ouvert par l'action de la butée 80. Si les contacts 14, 20 étaient déjà en position ouvert la butée 80 vient maintenir le bras de contact 22 en position ouvert empêchant toute fermeture des contacts 14, 20, notamment par le mécanisme de télécommande 48. La position de la manette 88 en position ouvert constitue une indication fiable de l'ouverture des contacts 14, 20. En effet, dansle cas de soudure accidentelle des contacts 14, 20 sous l'action de courant de court-circuit provoquant le déclenchement du mécanisme 50, la glissière 76 maintenue en position par la butée 80 en appui du bras de contact 22 empêche un déplacement de la manette 88 vers la position ouvert.During an intervention on the circuit it is possible to carry out the sectioning by moving, for example using a tool, the lever 88 from the armed position to the open position. This pivoting causes the toggle 74 to break and the stop 80 to pivot under the action of the spring 84. If the contacts 14, 20 are in the closed position they are automatically brought into the open position by the action of the stop 80 If the contacts 14, 20 were already in the open position, the stop 80 keeps the contact arm 22 in the open position preventing any closure of the contacts 14, 20, in particular by the remote control mechanism 48. The position of the lever 88 in position open constitutes a reliable indication of the opening of the contacts 14, 20. In fact, in the case of accidental welding of the contacts 14, 20 under the action of short-circuit current causing the triggering of the mechanism 50, the slide 76 maintained in position by the stop 80 in support of the contact arm 22 prevents displacement of the lever 88 towards the open position.

L'ensemble est particulièrement simple et le fait que le mécanisme de télécommande 48 et le mécanisme de déclenchement 50 travaillent indépendamment l'un de l'autre permet d'adapter ces mécanismes à leur fonction respective de télécommande et de protection. L'ensemble peut être logé dans un boîtier de profil standard de disjoncteur ou d'interrupteur miniature facilitant son incorporation dans un coffret ou tableau de distribution.The assembly is particularly simple and the fact that the remote control mechanism 48 and the trigger mechanism 50 work independently of one another makes it possible to adapt these mechanisms to their respective remote control and protection functions. The set can be accommodated in a standard circuit breaker or miniature switch box for easy incorporation into a distribution box or panel.

Il est clair que le bloc de commande peut être réalisé d'une manière différente et comporter par exemple deux électro-aimants, l'un d'ouverture et l'autre de fermeture, ou tout autre mécanisme d'actionnement du levier pivotant 42.It is clear that the control unit can be produced in a different way and include, for example, two electromagnets, one opening and the other closing, or any other mechanism for actuating the pivoting lever 42.

L'invention s'étend bien entendu à toute variante de réalisation, notamment à celle dans laquelle le bloc de commande serait incorporé au bloc de coupure, ou celle encore dans laquelle toute manoeuvre manuelle serait exclue.The invention extends of course to any variant, in particular that in which the control block would be incorporated into the cut-off block, or that in which any manual operation would be excluded.

Claims (10)

1. Appareil de coupure de courant basse tension ayant un contact mobile (20) porté par un bras de contact (22) basculant et coopérant en position de fermeture avec un contact fixe (14), ledit bras de contact (22) étant soumis à l'action d'un ressort (38) sollicitant le bras de contact sélectivement en deux positions stables, l'une de fermeture et l'autre d'ouverture des contacts (14, 20) de l'appareil, à l'exclusion de toute autre position intermédiaire et un mécanisme de télécommande (48) à haute endurance ayant un balancier (42) pivotant coopérant avec ledit ressort (38) pour basculer brusquement ledit bras de contact (22) mobile de la position fermée vers la position ouvert et inversement à la suite d'un ordre de télécommande, caractérisé par le fait qu'il comporte de plus un mécanisme (50) de déclenchement automatique en cas de surcharge et/ou de défaut coopérant avec ledit bras de contact (22) mobile pour déplacer ce dernier en position d'ouverture en maîtrisant un courant de défaut et pour maintenir le bras de contact (22) mobile en position d'ouverture indépendamment de la position du mécanisme de télécommande (48) tant que le mécanisme de déclenchement (50) est en position déclenchée, et un organe manuel (88) de réarmement du mécanisme de déclenchement (50) pour autoriser en position armé de ce dernier une fermeture télécommandée de l'appareil.1. Low voltage current cutoff device having a movable contact (20) carried by a tilting contact arm (22) and cooperating in the closed position with a fixed contact (14), said contact arm (22) being subjected to the action of a spring (38) biasing the contact arm selectively in two stable positions, one for closing and the other for opening the contacts (14, 20) of the device, excluding any other intermediate position and a remote control mechanism (48) with high endurance having a pivoting balance (42) cooperating with said spring (38) to suddenly tilt said movable contact arm (22) from the closed position to the open position and vice versa following a remote control command, characterized in that it further comprises a mechanism (50) for automatic triggering in the event of overload and / or fault cooperating with said movable contact arm (22) to move this last in open position by controlling a defeat current ut and to maintain the contact arm (22) movable in the open position regardless of the position of the remote control mechanism (48) as long as the trigger mechanism (50) is in the triggered position, and a manual member (88) of resetting the triggering mechanism (50) to authorize in the armed position of the latter a remote-controlled closing of the device. 2. Appareil de coupure selon la revendication 1, caractérisé en ce que ledit ressort (38) est ancré par l'une de ses extrémités (36) audit bras de contact (22) mobile et par l'extrémité opposée (40) audit balancier (42) de façon qu'un basculement du balancier (42) provoque un déplacement de ladite une extrémité (36) et un passage de point mort provoquant un basculement du bras de contact (22) mobile et que réciproquement un basculement du bras de contact (22) mobile, notamment par déclenchement sur défaut, provoque par un passage de point mort un basculement dudit balancier (42).2. Cutting device according to claim 1, characterized in that said spring (38) is anchored by one of its ends (36) to said contact arm (22) movable and by the opposite end (40) to said balance (42) so that a tilting of the pendulum (42) causes a displacement of said one end (36) and a passage from neutral causing a tilting of the movable contact arm (22) and that reciprocally a tilting of the contact arm (22) movable, in particular by tripping on fault, causes a shift in neutral to tilt said pendulum (42). 3. Appareil de coupure selon la revendication 1 ou 2, caractérisé en ce que l'organe de réarmement comporte une manette (88) basculante susceptible d'occuper sélectivement une position armé et une position ouvert, la manette (88) étant déplacée automatiquement en position ouvert lors d'une ouverture des contacts (14, 20) sur un déclenchement sur défaut, la manette (88) restant par contre en position armé lors d'une soudure des contacts (14, 20).3. Cut-off device according to claim 1 or 2, characterized in that the reset member comprises a tilting lever (88) capable of selectively occupying an armed position and an open position, the lever (88) being moved automatically by open position when the contacts (14, 20) open on a fault trip, the lever (88), on the other hand, remains in the armed position when the contacts (14, 20) are welded. 4. Appareil de coupure selon la revendication 1, 2 ou 3, caractérisé en ce qu'il comporte un déclencheur électromagnétique (28) sur défaut à extracteur (58) agissant sur le bras de contact (22) mobile pour déplacer rapidement ce dernier en position ouvert lors d'un déclenchement sur défaut, et une chambre de coupure (96) associée auxdits contacts (14, 20) pour éteindre l'arc tiré entre les contacts.4. Cutting device according to claim 1, 2 or 3, characterized in that it comprises an electromagnetic trip device (28) on extractor fault (58) acting on the contact arm (22) movable to quickly move the latter in open position during a trip on fault, and a breaking chamber (96) associated with said contacts (14, 20) to extinguish the arc drawn between the contacts. 5. Appareil de coupure selon la revendication 1, 2, 3 ou 4, caractérisé en ce que ledit mécanisme de déclenchement (50) comporte un accrochage (62) qui brise en position libéré une liaison cinématique (70, 74, 76) entre ledit organe manuel (88) et un levier pivotant (75) agissant sous l'action d'une énergie de rappel (84) sur le bras de contact (22) mobile pour déplacer ce dernier à l'encontre dudit ressort (38) en position stable d'ouverture, ladite énergie de rappel (84) du mécanisme de déclenchement (50) étant notablement supérieure à celle du mécanisme de télécommande (48).5. Cutting device according to claim 1, 2, 3 or 4, characterized in that said triggering mechanism (50) comprises a latching (62) which breaks in the released position a kinematic connection (70, 74, 76) between said manual member (88) and a pivoting lever (75) acting under the action of return energy (84) on the contact arm (22) movable to move the latter against said spring (38) in position stable opening, said return energy (84) of the trigger mechanism (50) being significantly greater than that of the remote control mechanism (48). 6. Appareil de coupure selon la revendication 5, caractérisé en ce que ladite liaison cinématique (70, 74, 76) comporte une renouillère (74) dont l'une des extrémités est articulée sur ledit organe manuel (88) et dont l'autre extrémité (70) coopère avec une première glissière (76) portée par ledit levier pivotant (78) en étant guidée par une deuxième glissière (68) solidaire du levier d'accrochage (62, 64).6. Cutting device according to claim 5, characterized in that said kinematic connection (70, 74, 76) comprises a rewinder (74) one end of which is articulated on said manual member (88) and the other of which end (70) cooperates with a first slide (76) carried by said pivoting lever (78) being guided by a second slide (68) integral with the latching lever (62, 64). 7. Appareil de coupure selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte un bloc de coupure (10) à boîtier moulé (12) et un bloc de télécommande (100) à boîtier moulé (102) susceptible d'être accolé au boîtier moulé du bloc de coupure, ledit balancier pivotant (42) logé dans le bloc de coupure (10) étant accouplé à un actionneur électromagnétique (104, 122) de télécommande logé dans le bloc de télécommande (100).7. Cut-off device according to any one of the claims. previous cations, characterized in that it comprises a cut-off block (10) with molded case (12) and a remote control block (100) with molded case (102) capable of being attached to the molded case of the cut-off block, said pivoting pendulum (42) housed in the cut-off block (10) being coupled to an electromagnetic actuator (104, 122) of remote control housed in the remote control block (100). 8. Appareil de coupure selon la revendication 7, caracté. risé en ce que ledit actionneur comprend une bascule bistable (116, 122) et un électro-aimant (104) provoquant à chaque excitation un changement d'état de ladite bascule.8. Cutting device according to claim 7, character. risé in that said actuator comprises a flip-flop (116, 122) and an electromagnet (104) causing each excitation a change of state of said flip-flop. 9. Appareil de coupure selon la revendication 8, caractérisé en ce que le bloc de télécommande (100) comporte un organe manuel (124) de commande de secours coopérant avec ladite bascule (122) pour ouvrir ou fermer ledit appareil.9. Cutting device according to claim 8, characterized in that the remote control unit (100) comprises a manual member (124) of emergency control cooperating with said rocker (122) to open or close said device. 10. Appareil de coupure selon la revendication 3, caractérisé en ce que ledit organe de réarmement (88) est agencé pour un actionnement par un outil de la position armé vers la position ouvert pour une ouverture et/ou un maintien desdits contacts (14, 20) en position ouvert indépendamment de la position du mécanisme de télécommande (48).10. Cutting device according to claim 3, characterized in that said reset member (88) is arranged for actuation by a tool from the armed position to the open position for opening and / or maintaining said contacts (14, 20) in the open position regardless of the position of the remote control mechanism (48).
EP83402080A 1982-11-03 1983-10-25 Remotely controlled current switching device Expired EP0108678B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83402080T ATE19838T1 (en) 1982-11-03 1983-10-25 REMOTE CONTROLLED POWER SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8218551A FR2535520A1 (en) 1982-11-03 1982-11-03 CURRENT CUTTING APPARATUS REMOTE CONTROL
FR8218551 1982-11-03

Publications (2)

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EP0108678A1 true EP0108678A1 (en) 1984-05-16
EP0108678B1 EP0108678B1 (en) 1986-05-14

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EP83402080A Expired EP0108678B1 (en) 1982-11-03 1983-10-25 Remotely controlled current switching device

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US (1) US4532486A (en)
EP (1) EP0108678B1 (en)
JP (1) JPS5996626A (en)
AT (1) ATE19838T1 (en)
AU (1) AU556571B2 (en)
CA (1) CA1217804A (en)
DE (1) DE3363536D1 (en)
ES (1) ES526863A0 (en)
FR (1) FR2535520A1 (en)
ZA (1) ZA838144B (en)

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FR2578354A1 (en) * 1985-03-04 1986-09-05 Westinghouse Electric Corp CIRCUIT BREAKER THAT CAN OPERATE AS A SWITCH
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EP0250223A2 (en) * 1986-06-19 1987-12-23 Eaton Corporation Circuit breaker with electrical disconnect means
EP0292852A2 (en) * 1987-05-26 1988-11-30 Matsushita Electric Works, Ltd. Remotely controllable circuit breaker
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EP0362843A2 (en) * 1988-10-06 1990-04-11 Mitsubishi Denki Kabushiki Kaisha Remotely-operated circuit breaker
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EP0183020A1 (en) * 1984-11-14 1986-06-04 Klöckner-Moeller Elektrizitäts GmbH Remote control block with magnet system, particularly for switching on and-off motor switches and power switches
DE3441550A1 (en) * 1984-11-14 1986-05-15 Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn REMOTE CONTROL BLOCK WITH MAGNETIC SYSTEM, ESPECIALLY FOR SWITCHING ON AND OFF MOTOR SWITCHES AND CIRCUIT BREAKERS
GB2172146B (en) * 1985-03-04 1989-05-04 Westinghouse Electric Corp Circuit breaker operable as a switch
FR2578354A1 (en) * 1985-03-04 1986-09-05 Westinghouse Electric Corp CIRCUIT BREAKER THAT CAN OPERATE AS A SWITCH
GB2172146A (en) * 1985-03-04 1986-09-10 Westinghouse Electric Corp Circuit breaker
FR2579821A1 (en) * 1985-03-26 1986-10-03 Merlin Gerin MULTIPOLAR CUTTING APPARATUS WITH REMOTE CONTROL
EP0199612A1 (en) * 1985-03-26 1986-10-29 Merlin Gerin Multiphase interrupting device with remote control
FR2580426A1 (en) * 1985-04-10 1986-10-17 Westinghouse Electric Corp LOW VOLTAGE CIRCUIT BREAKER WITH SWITCHING FUNCTION FOR CONTROL OF ELECTRIC POWER MANAGEMENT SYSTEM
EP0250223A2 (en) * 1986-06-19 1987-12-23 Eaton Corporation Circuit breaker with electrical disconnect means
EP0250223A3 (en) * 1986-06-19 1988-08-10 Westinghouse Electric Corporation Circuit breaker with electrical disconnect means
EP0292852A3 (en) * 1987-05-26 1990-05-23 Matsushita Electric Works, Ltd. Remotely controllable circuit breaker
EP0292852A2 (en) * 1987-05-26 1988-11-30 Matsushita Electric Works, Ltd. Remotely controllable circuit breaker
FR2637414A1 (en) * 1988-09-30 1990-04-06 Merlin Gerin REMOTE CONTROL POWER CUTTING APPARATUS
EP0362085A1 (en) * 1988-09-30 1990-04-04 Merlin Gerin Current interrupting device with remote control
US5079529A (en) * 1988-10-06 1992-01-07 Mitsubishi Denki Kabushiki Kaisha Remote-controlled circuit breaker
EP0362846A2 (en) * 1988-10-06 1990-04-11 Mitsubishi Denki Kabushiki Kaisha Remote-controlled circuit breaker
EP0362845A2 (en) * 1988-10-06 1990-04-11 Mitsubishi Denki Kabushiki Kaisha Remote-controlled circuit breaker
EP0362843A2 (en) * 1988-10-06 1990-04-11 Mitsubishi Denki Kabushiki Kaisha Remotely-operated circuit breaker
EP0362843A3 (en) * 1988-10-06 1991-06-05 Mitsubishi Denki Kabushiki Kaisha Remotely-operated circuit breaker
EP0362871A3 (en) * 1988-10-06 1991-06-05 Mitsubishi Denki Kabushiki Kaisha Remote-controlled circuit breaker
EP0362845A3 (en) * 1988-10-06 1991-06-05 Mitsubishi Denki Kabushiki Kaisha Remote-controlled circuit breaker
EP0362871A2 (en) * 1988-10-06 1990-04-11 Mitsubishi Denki Kabushiki Kaisha Remote-controlled circuit breaker
EP0362846A3 (en) * 1988-10-06 1992-06-03 Mitsubishi Denki Kabushiki Kaisha Remote-controlled circuit breaker
EP0364950A2 (en) * 1988-10-17 1990-04-25 Mitsubishi Denki Kabushiki Kaisha Remote-controlled circuit breaker
EP0364950A3 (en) * 1988-10-17 1991-06-05 Mitsubishi Denki Kabushiki Kaisha Remote-controlled circuit breaker
EP2333805A1 (en) * 2009-12-11 2011-06-15 Schneider Electric Industries SAS Remotely controlled switchgear and power distribution device provided with such a switchgear
FR2953987A1 (en) * 2009-12-11 2011-06-17 Schneider Electric Ind Sas Remote operated switchgear for use in outgoing circuit that is arranged in upstream of current limiter device of electric distribution device, has movable control contact that is closed on fixed control contact arranged on base of actuator

Also Published As

Publication number Publication date
CA1217804A (en) 1987-02-10
ZA838144B (en) 1985-02-27
AU556571B2 (en) 1986-11-06
US4532486A (en) 1985-07-30
ATE19838T1 (en) 1986-05-15
DE3363536D1 (en) 1986-06-19
ES8406788A1 (en) 1984-08-01
JPS5996626A (en) 1984-06-04
ES526863A0 (en) 1984-08-01
AU2091783A (en) 1984-05-10
EP0108678B1 (en) 1986-05-14
FR2535520B1 (en) 1985-01-18
JPH0349173B2 (en) 1991-07-26
FR2535520A1 (en) 1984-05-04

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