EP0104981A1 - Electric circuit breaker with a remotely controlled static switching device - Google Patents

Electric circuit breaker with a remotely controlled static switching device Download PDF

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Publication number
EP0104981A1
EP0104981A1 EP83401751A EP83401751A EP0104981A1 EP 0104981 A1 EP0104981 A1 EP 0104981A1 EP 83401751 A EP83401751 A EP 83401751A EP 83401751 A EP83401751 A EP 83401751A EP 0104981 A1 EP0104981 A1 EP 0104981A1
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EP
European Patent Office
Prior art keywords
circuit breaker
contacts
static switch
arc
electric circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83401751A
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German (de)
French (fr)
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EP0104981B1 (en
Inventor
Jean-Luc Mertz
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Merlin Gerin SA
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Merlin Gerin SA
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Publication of EP0104981A1 publication Critical patent/EP0104981A1/en
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Publication of EP0104981B1 publication Critical patent/EP0104981B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/121—Protection of release mechanisms
    • 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
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/548—Electromechanical and static switch connected in series

Definitions

  • the invention relates to an electric circuit breaker according to the preamble of the claim.
  • a circuit breaker is generally equipped with a manual opening and closing control handle and is capable of automatically interrupting fault currents. It does not lend itself well to a remote control and its mechanism is not suitable for a large number of operations.
  • the present invention aims to remedy these drawbacks and allow the realization of a simple and inexpensive remote control circuit breaker.
  • the invention as characterized in the claims makes use of a static switch, in particular a triac, to ensure the remote control, the circuit breaker mechanism and its contacts not involved in this operation.
  • the properties and advantages of static switches are well known, but their possibilities of use are limited by their great sensitivity to overloads which cause their destruction. It has already been proposed in patent US Pat.
  • the response time of this known circuit breaker is too long to effectively protect the semiconductor of the static switch and this circuit breaker is useless in the distribution circuits.
  • the switching of the arc to shunt the semiconductor the circuit breaker protects the semiconductor at the same time.
  • the assembly can be housed in the same standard size housing which facilitates connections and assembly.
  • the circuit breaker can be unipolar or multipolar, in particular for alternating current.
  • FIGs 1 and 2 there is shown a pole of a miniature electric circuit breaker 10 used in an AC low voltage network.
  • the housing 12 of molded insulating material comprises a rear base 14 adaptable to a support rail by means of a latch 16, and a front face 18 provided with an opening for passage of a control handle 20.
  • Each pole comprises a pair of separable contacts 22, 24, a breaking chamber 26 with plates 28 for deionizing the arc and an operating mechanism 30 associated with the lever 20 for manual control and with an automatic magnetothermal trip device 32.
  • the latter is electrically inserted in the main trip circuit and is formed by a bimetal thermal trip device 34 and an electromagnetic trip device with coil 36 connected in series with the pair of contacts 22, 24 in electrical connection with the connection terminals 38, 40 of the pole .
  • the breaking chamber 26 is framed by two lower arc 39 and upper arc horns 41 extending parallel to the sheets 28 and aulfond of the base 14.
  • the movable contact 24 is integral with a contact arm 42 actuated by the operating mechanism 30.
  • the contact arm 42 is pivotally mounted on a rocker arm 44 mechanically coupled to a toggle switch 46 associated with the lever 20.
  • a release lever 48 pivoting on an axis 50 cooperates with the end of the contact arm 42 opposite the movable contact 24, so as to secure the arm 42 to the rocker arm 44.
  • a lock 52 ensures the attachment of the lever release 48 in the locked position.
  • the automatic opening of the contacts 22, 24 of the pole is caused by a pivoting of the latch 52 towards an unlocked position which releases the trigger lever 48 entraining under the action of a spring the contact arm 42 pivoting towards the position opening hours.
  • the latch 52 is actuated towards the unlocked position either by the deflection of the bimetallic strip 34 in the event of overload, or by the displacement of the movable core of the electromagnetic trip device 36 during the appearance of a short circuit.
  • a static switching member formed by a controlled semiconductor element in particular a triac 56 or two thyristors in parallel head to tail, is electrically connected in the main trip circuit, in series with the pair of contacts 22 , 24 and the bimetal 34 and coil triggers., Electromagnetic 36.
  • the triac 56 priming electrode is connected to a connection socket 57 arranged in the housing 12 and capable of receiving an external conductor 58 in connection with a device remote control 60 (fig. 2).
  • the triac 56 is electrically connected in the main circuit between the fixed contact 22 and one 40 of the pole connection terminals.
  • the movable contact 24 is in electrical connection with the other terminal 38 through the coil 36 and the bimetallic strip 34.
  • the upper arc horn 41 is connected to the base of the bimetallic strip 34 connected to the terminal 38.
  • the lower arc horn 39 is extended to the vicinity of the fixed contact 22 and is connected by a connecting conductor 62 at a connection point 64 located between the triac 56 and the terminal 40 of the main circuit.
  • the arcing horn 39 is separated from the fixed contact 22 by a small gap 66 so as to allow rapid switching of the arcing to the extension of the lower horn 39 from the start of the opening stroke of the contact arm 42 .
  • the operating mechanism 30 ensures, in a well known manner, the displacement of the contact arm 42 towards the open position. The same is true when the fault current is a significant short circuit involving the electromagnetic trip device 36 when the instantaneous trip threshold is exceeded.
  • the driver triac 56 is short-circuited by the driver 62 as soon as the arc switches to the lower horn 39 at the start of the opening stroke of the movable contact 24. (in dotted lines). The triac 56 is thus protected against any overcurrent upon separation of the contacts 22, 24 and switches off automatically on the next zero crossing of the current.
  • the conventional switching of the arc on the upper horn 41 takes place, the arc then being anchored between the two horns 39, 41 of the chamber 26, so as to shunt the bimetallic strip 34 and the coil 36 of the thermal and electromagnetic triggers.
  • the arc is extinguished in the chamber 26 thanks to the deionization plates 28.
  • the circuit breaker 10 then operates as a static switch remotely controlled by blocking and unblocking of the triac 56 ensuring respectively the interruption and the establishment of the nominal current in the main circuit of the pole without intervention of the mechanism 30 of the circuit breaker.
  • the overcurrent protection function is provided by the magnetothermal trip device 32 cooperating with the mechanism 30 to open the contact arm 42, the triac 56 being in the conducting state.
  • the switching of the arc on the horn 39 short-circuits the triac 56 which goes out, the latter being protected against the fault current as soon as the contacts 22, 24 separate.
  • the remote control function of the circuit breaker 10 results exclusively from the intervention of the device 60 for remote control of the triac 56 while the mechanism 30 remains inactive in the closed position of the contacts 22, 24.
  • the variant of fig. 3 shows an electrical connection different from the triac 56 in the main pole trip circuit. All the other elements of the circuit breaker 10 are identical to that of FIGS. 1 and 2, with the exception of the lower horn 39 connected directly to the fixed contact 22.
  • the triac 56 is inserted between the movable contact 24 and the terminal 38 in series with the bimetallic strip 34 and the coil 36 of the magnetothermal trip device 32.
  • the contact fixed 22 is directly connected to terminal 40.
  • the operation of the remote-controlled circuit breaker 10 according to FIG. 3 is similar to that of figs; 1 and 2, only the shunting time of the triac 56 is modified during the shutdown phase.
  • the shunting occurs at the end of opening stroke of the contact arm 42 (in dotted lines) when the arc is switched on the upper horn 41.
  • the series circuit formed by the triac 56, the bimetallic strip 34 and the coil 36 is then short -circuited by the upper horn 41.

Abstract

L'invention concerne un disjoncteur miniature à courant alternatif et à télécommande. La fonction protection est assurée par le déclencheur magnétothermique (32) coopérant avec le mécanisme (30) pour provoquer l'ouverture des contacts (22, 24). La fonction télécommande résulte de la présence d'un triac (55) connecté en série avec les contacts (22, 24) et le déclencheur (32). L'établissement ou l'interruption du courant nominal intervient par conduction ou blocage du triac (56) sans intervention du mécanisme (30). Le triac est automatiquement court-circuité lors de la commutation de l'arc sur la corne inférieure (39) pendant la phase de coupure suite à l'apparition d'un courànt de défaut détecté par le déclencheur (32).The invention relates to a miniature circuit breaker with alternating current and remote control. The protection function is ensured by the magnetothermal release (32) cooperating with the mechanism (30) to cause the opening of the contacts (22, 24). The remote control function results from the presence of a triac (55) connected in series with the contacts (22, 24) and the release (32). The establishment or interruption of the nominal current occurs by conduction or blocking of the triac (56) without intervention of the mechanism (30). The triac is automatically short-circuited when the arc is switched over to the lower horn (39) during the breaking phase following the appearance of a fault current detected by the trigger (32).

Description

L'invention est relative à un disjoncteur électrique selon le préambule de la revendication.The invention relates to an electric circuit breaker according to the preamble of the claim.

Un disjoncteur est généralement équipé d'une manette de commande manuelle d'ouverture et de fermeture et il est capable d'interrompre automatiquement des courants de défaut. Il se prête mal à une télécommande et son mécanisme n'est pas adapté à un grand nombre de manoeuvres.A circuit breaker is generally equipped with a manual opening and closing control handle and is capable of automatically interrupting fault currents. It does not lend itself well to a remote control and its mechanism is not suitable for a large number of operations.

La présente invention a pour but de remédier à ces inconvénients et de permettre la réalisation d'un disjoncteur à télécommande simple et bon marché. L'invention telle qu'elle est caractérisée dans les revendications fait usage d'un commutateur statique, notamment d'un triac, pour assurer la télécommande, le mécanisme du disjoncteur et ses contacts n'intervenant pas dans cette manoeuvre. Les propriétés et avantages des commutateurs statiques sont bien connus mais leurs possibilités d'emploi sont limitées par leur grande sensibilité aux surcharges qui provoquent leur destruction. Il a déjà été proposé dans le brevet US 4.272.687 d'associer un commutateur statique et un disjoncteur, la protection sur défaut, notamment sur court-circuit, étant assurée par le disjoncteur, tandis que le commutateur statique permet une télécommande. Le temps de réponse de ce disjoncteur connu est trop long pour protéger efficacement le semi-conducteur du commutateur statique et ce disjoncteur est inuti-lisable dans les circuits de distribution. En utilisant selon invention, la commutation de l'arc pour shunter le semi-conducteur le disjoncteur protège en même temps le semi-conducteur. L'ensemble peut être.logé dans un même boîtier de dimension standard ce qui facilite les connexions et le montage. Le disjoncteur peut être unipolaire ou multipolaire, notamment pour du courant alternatif.The present invention aims to remedy these drawbacks and allow the realization of a simple and inexpensive remote control circuit breaker. The invention as characterized in the claims makes use of a static switch, in particular a triac, to ensure the remote control, the circuit breaker mechanism and its contacts not involved in this operation. The properties and advantages of static switches are well known, but their possibilities of use are limited by their great sensitivity to overloads which cause their destruction. It has already been proposed in patent US Pat. The response time of this known circuit breaker is too long to effectively protect the semiconductor of the static switch and this circuit breaker is useless in the distribution circuits. Using according to the invention, the switching of the arc to shunt the semiconductor the circuit breaker protects the semiconductor at the same time. The assembly can be housed in the same standard size housing which facilitates connections and assembly. The circuit breaker can be unipolar or multipolar, in particular for alternating current.

D'autres avantages et caractéristiques ressortiront plus clairement de l'exposé qui va suivre de deux modes de mise en oeuvre de l'invention, donnés à titre d'exemples non limitatifs et représentés aux dessins annexés, dans lesquels :

  • la figure 1 est une vue en coupe verticale d'un pôle de disjoncteur magnétothermique équipé d'un commutateur statique télécommandé selon l'invention, les contacts du pôle étant en position de fermeture;
  • la figure 2 représente le schéma électrique du disjoncteur de la fig. 1;
  • la figure 3 est une vue analogue à la fig. 2, d'une variante de réalisation.
Other advantages and characteristics will emerge more clearly from the description which follows of two embodiments of the invention, given by way of nonlimiting examples and represented in the appended drawings, in which:
  • Figure 1 is a vertical sectional view of a magnetothermal circuit breaker pole equipped with a remote controlled static switch according to the invention, the pole contacts being in the closed position;
  • FIG. 2 represents the electric diagram of the circuit breaker of FIG. 1;
  • FIG. 3 is a view similar to FIG. 2, of an alternative embodiment.

Sur les figures 1 et 2, est représenté un pôle d'un disjoncteur 10 électrique miniature utilisé dans un réseau alternatif à basse tension. Le boîtier 12 en matériau isolant moulé comporte un socle 14 postérieur adaptable à un rail support au moyen d'un verrou 16 d'encliquetage, et une face avant 18 munie d'une ouverture de passage d'une manette 20 de commande. Chaque pôle comprend une paire de contacts 22, 24 séparables, une chambre de coupure 26 à tôles 28 de désionisation de l'arc et un mécanisme de manoeuvre 30 associé à la manette 20 de commande manuelle et à un déclencheur automatique magnétothermique 32. Ce dernier est inséré électriquement dans le circuit principal de déclenchement et est formé par un déclencheur thermique à bilame 34 et un déclencheur électromagnétique à bobine 36 connectés èn série avec la paire de contacts 22, 24 en liaison électrique avec les bornes de raccordement 38, 40 du pôle. La chambre de coupure 26 est encadrée par deux cornes d'arc inférieure 39 et supérieure 41 s'étendant parallèlement aux tôles 28 et aulfond du socle 14.In Figures 1 and 2, there is shown a pole of a miniature electric circuit breaker 10 used in an AC low voltage network. The housing 12 of molded insulating material comprises a rear base 14 adaptable to a support rail by means of a latch 16, and a front face 18 provided with an opening for passage of a control handle 20. Each pole comprises a pair of separable contacts 22, 24, a breaking chamber 26 with plates 28 for deionizing the arc and an operating mechanism 30 associated with the lever 20 for manual control and with an automatic magnetothermal trip device 32. The latter is electrically inserted in the main trip circuit and is formed by a bimetal thermal trip device 34 and an electromagnetic trip device with coil 36 connected in series with the pair of contacts 22, 24 in electrical connection with the connection terminals 38, 40 of the pole . The breaking chamber 26 is framed by two lower arc 39 and upper arc horns 41 extending parallel to the sheets 28 and aulfond of the base 14.

Le contact mobile 24 est solidaire d'un bras de contact 42 actionné par le mécanisme de manoeuvre 30. Le bras de contact 42 est monté à pivotement sur un culbuteur 44 accouplé mécaniquement à une genouillère 46 associée à la manette 20. Un levier de déclenchement 48 pivotant sur un axe 50 coopère avec l'extrémité du bras de contact 42 à l'opposé du contact mobile 24, de manière à solidariser le bras 42 au culbuteur 44. Un verrou 52 assure l'accrochage du levier de déclenchement 48 en position de verrouillage. L'ouverture automatique des contacts 22, 24 du pôle est provoquée par un pivotement du verrou 52 vers une position déverrouillée qui libère le levier de déclenchement 48 entral- nant sous l'action d'un ressort le bras de contact 42 pivotant vers la position d'ouverture. Le verrou 52 est actionné vers la position déverrouillée soit par la déflexion du bilame 34 en cas de surcharge, soit par le déplacement du noyau mobile du déclencheur électromagnétique 36 lors de l'apparition d'un court-circuit.The movable contact 24 is integral with a contact arm 42 actuated by the operating mechanism 30. The contact arm 42 is pivotally mounted on a rocker arm 44 mechanically coupled to a toggle switch 46 associated with the lever 20. A release lever 48 pivoting on an axis 50 cooperates with the end of the contact arm 42 opposite the movable contact 24, so as to secure the arm 42 to the rocker arm 44. A lock 52 ensures the attachment of the lever release 48 in the locked position. The automatic opening of the contacts 22, 24 of the pole is caused by a pivoting of the latch 52 towards an unlocked position which releases the trigger lever 48 entraining under the action of a spring the contact arm 42 pivoting towards the position opening hours. The latch 52 is actuated towards the unlocked position either by the deflection of the bimetallic strip 34 in the event of overload, or by the displacement of the movable core of the electromagnetic trip device 36 during the appearance of a short circuit.

Le fonctionnement d'un tel disjoncteur est bien connu des spécialistes et est décrit dans le brevet français N° 2.468.202, auquel on se reportera pour de plus amples détails.The operation of such a circuit breaker is well known to specialists and is described in French Patent No. 2,468,202, to which reference will be made for further details.

Selon l'invention, un organe de commutation statique formé par un élément semi-conducteur commandé, notamment un triac 56 ou deux thyristors en tête-bêche parallèle, est connecté électriquement dans le circuit principal de déclenchement, en série avec la paire de contacts 22, 24 et les déclencheurs à bilame 34 et à bobine., électromagnétique 36. L'électrode d'amorçage du triac 56 est reliée à une prise de connexion 57 agencée dans le boîtier 12 et pouvant recevoir un conducteur 58 extérieur en liaison avec un dispositif de télécommande 60 (fig. 2).According to the invention, a static switching member formed by a controlled semiconductor element, in particular a triac 56 or two thyristors in parallel head to tail, is electrically connected in the main trip circuit, in series with the pair of contacts 22 , 24 and the bimetal 34 and coil triggers., Electromagnetic 36. The triac 56 priming electrode is connected to a connection socket 57 arranged in the housing 12 and capable of receiving an external conductor 58 in connection with a device remote control 60 (fig. 2).

En référence aux fig. 1 et 2, le triac 56 est connecté électriquement dans le circuit principal entre le contact fixe 22 et l'une 40 des bornes de raccordement du pôle. Le contact mobile 24 est en liaison électrique avec l'autre borne 38 à travers la bobine 36 et le bilame 34. En position de fermeture des contacts 22, 24, le courant nominal circulant dans le circuit principal, traverse le triac 56 dans l'état débloqué, la bobine 36 du déclencheur électromagnétique et le bilame 34 du déclencheur thermique. La corne d'arc supérieure 41 est raccordée à la base du bilame 34 reliée à la borne 38. La corne d'arc inférieure 39 est prolongée jusqu'au voisinage du contact fixe 22 et est connectée par un conducteur de liaison 62 à un point de raccordement 64 situé entre le triac 56 et la borne 40 du circuit principal. La corne d'arc 39 est séparée du contact fixe 22 par un faible intervalle 66 de manière à autoriser la commutation rapide de l'arc sur le prolongement de la corne inférieure 39 dès le début de la course d'ouverture du bras de contact 42.With reference to fig. 1 and 2, the triac 56 is electrically connected in the main circuit between the fixed contact 22 and one 40 of the pole connection terminals. The movable contact 24 is in electrical connection with the other terminal 38 through the coil 36 and the bimetallic strip 34. In the closed position of the contacts 22, 24, the nominal current flowing in the main circuit, passes through the triac 56 in the unlocked state, the coil 36 of the electromagnetic trip device and the bimetallic strip 34 of the thermal trip device. The upper arc horn 41 is connected to the base of the bimetallic strip 34 connected to the terminal 38. The lower arc horn 39 is extended to the vicinity of the fixed contact 22 and is connected by a connecting conductor 62 at a connection point 64 located between the triac 56 and the terminal 40 of the main circuit. The arcing horn 39 is separated from the fixed contact 22 by a small gap 66 so as to allow rapid switching of the arcing to the extension of the lower horn 39 from the start of the opening stroke of the contact arm 42 .

Le fonctionnement du disjoncteur 10 magnétothermique à télécommande selon les fig. 1 et 2 est le suivant :

  • En fonctionnement normal de surveillance du disjoncteur, le triac 56 est conducteur et les contacts 22, 24 se trouvent en position de fermeture. Le courant du pôle circule dans le circuit principal comprenant le bilame 34, la bobine 36 et le triac 56.
The operation of the magneto-thermal circuit breaker 10 with remote control according to FIGS. 1 and 2 is as follows:
  • In normal circuit breaker monitoring operation, the triac 56 is conductive and the contacts 22, 24 are in the closed position. The pole current flows in the main circuit comprising the bimetallic strip 34, the coil 36 and the triac 56.

Lors de l'apparition d'un courant de surcharge s'opère la déflexion du bilame 34 susceptible de provoquer le déverrouillage du verrou 52 après dépassement du seuil de déclenchement thermique. Le mécanisme de manoeuvre 30 assure d'une manière bien connue le déplacement du bras de contact 42 vers la position d'ouverture. Il en est de même lorsque le courant de défaut est un court-circuit important faisant intervenir le déclencheur électromagnétique 36 lors du dépassement du seuil de déclenchement instantané. Le triac 56 conducteur est court-circuité par le conducteur 62 dès que l'arc commute sur la corne inférieure 39 au début de la course d'ouverture du contact mobile 24.(en pointillé). Le triac 56 est ainsi protégé contre toute surintensité dès la séparation des contacts 22, 24 et s'éteint automatiquement au prochain passage à zéro du courant. En fin de course d'ouverture du bras de contact 42, intervient la commutation classique de l'arc sur la corne supérieure 41, l'arc étant alors ancré entre les deux cornes 39, 41 de la chambre 26, de manière à shunter le bilame 34 et la bobine 36 des déclencheurs thermique et électromagnétique. L'extinction de l'arc s'opère dans la chambre 26 grâce aux tôles 28 de désionisation.When an overload current appears, deflection of the bimetallic strip 34 can cause the latch 52 to be unlocked after the thermal tripping threshold has been exceeded. The operating mechanism 30 ensures, in a well known manner, the displacement of the contact arm 42 towards the open position. The same is true when the fault current is a significant short circuit involving the electromagnetic trip device 36 when the instantaneous trip threshold is exceeded. The driver triac 56 is short-circuited by the driver 62 as soon as the arc switches to the lower horn 39 at the start of the opening stroke of the movable contact 24. (in dotted lines). The triac 56 is thus protected against any overcurrent upon separation of the contacts 22, 24 and switches off automatically on the next zero crossing of the current. At the end of the opening stroke of the contact arm 42, the conventional switching of the arc on the upper horn 41 takes place, the arc then being anchored between the two horns 39, 41 of the chamber 26, so as to shunt the bimetallic strip 34 and the coil 36 of the thermal and electromagnetic triggers. The arc is extinguished in the chamber 26 thanks to the deionization plates 28.

En l'absence de défaut sur le réseau, l'ouverture et la fermeture du disjoncteur connecté au réseau s'effectue de deux manières distinctes :

  • - soit par action manuelle de la manette 20 de commande du mécanisme 30 qui entraîne mécaniquement le bras de contact 42 vers la position d'ouverture ou de fermeture. Le disjoncteur 10 fonctionne alors en interrupteur mécanique susceptible d'établir et d'interrompre le courant nominal du pôle;
  • - soit par commande à distance du triac 56 au moyen du dispositif 60, la manette 20 du mécanisme 30 et les contacts 22, 24 restant immobiles en position de fermeture.
In the absence of a fault on the network, the opening and closing of the circuit breaker connected to the network is carried out in two distinct ways:
  • - Or by manual action of the lever 20 for controlling the mechanism 30 which mechanically drives the contact arm 42 to the open or closed position. The circuit breaker 10 then operates as a mechanical switch capable of establishing and interrupting the nominal current of the pole;
  • - Or by remote control of the triac 56 by means of the device 60, the lever 20 of the mechanism 30 and the contacts 22, 24 remaining stationary in the closed position.

Le disjoncteur 10 fonctionne alors en interrupteur statique télécommandé par blocage et déblocage du triac 56 assurant respectivement l'interruption et l'établissement du courant nominal dans le circuit principal du pôle sans intervention du mécanisme 30 du disjoncteur.The circuit breaker 10 then operates as a static switch remotely controlled by blocking and unblocking of the triac 56 ensuring respectively the interruption and the establishment of the nominal current in the main circuit of the pole without intervention of the mechanism 30 of the circuit breaker.

On remarque que la fonction protection contre les surinten- sites est assurée par le déclencheur magnétothermique 32 coopérant avec le mécanisme 30 pour ouvrir le bras de contact 42, le triac 56 étant dans l'état conducteur. La commutation de l'arc sur la corne 39 court-circuite le triac 56 qui s'éteint, ce dernier étant protégé contre le courant de défaut dès que les contacts 22, 24 se séparent. La fonction télécommande du disjoncteur 10 résulte exclusivement de l'intervention du dispositif 60 de commande à distance du triac 56 pendant que le mécanisme 30 reste inactif en position de fermeture des contacts 22, 24.It will be noted that the overcurrent protection function is provided by the magnetothermal trip device 32 cooperating with the mechanism 30 to open the contact arm 42, the triac 56 being in the conducting state. The switching of the arc on the horn 39 short-circuits the triac 56 which goes out, the latter being protected against the fault current as soon as the contacts 22, 24 separate. The remote control function of the circuit breaker 10 results exclusively from the intervention of the device 60 for remote control of the triac 56 while the mechanism 30 remains inactive in the closed position of the contacts 22, 24.

La variante de la fig. 3 montre une connexion électrique différente du triac 56 dans le circuit principal de déclenchement du pôle. Tous les autres éléments du disjoncteur 10 sont identiques à celui des fig. 1 et 2, à l'exception de la corne inférieure 39 raccordée directement au contact fixe 22. Le triac 56 est inséré entre le contact mobile 24 et la borne 38 en série avec le bilame 34 et la bobine 36 du déclencheur magnétothermique 32. Le contact fixe 22 est relié directement à la borne 40.The variant of fig. 3 shows an electrical connection different from the triac 56 in the main pole trip circuit. All the other elements of the circuit breaker 10 are identical to that of FIGS. 1 and 2, with the exception of the lower horn 39 connected directly to the fixed contact 22. The triac 56 is inserted between the movable contact 24 and the terminal 38 in series with the bimetallic strip 34 and the coil 36 of the magnetothermal trip device 32. The contact fixed 22 is directly connected to terminal 40.

Le fonctionnement du disjoncteur télécommandé 10 selon la fig. 3 est similaire à celui des fig; 1 et 2, seul est modifié l'instant de shuntage du triac 56 pendant la phase de coupure. Le shuntage intervient en fin de course d'ouverture du bras de contact 42 (en pointillé) lorsque l'arc est commuté sur la corne supérieure 41. Le circuit série formé par le triac 56, le bilame 34 et la bobine 36 est alors court-circuité par la corne supérieure 41.The operation of the remote-controlled circuit breaker 10 according to FIG. 3 is similar to that of figs; 1 and 2, only the shunting time of the triac 56 is modified during the shutdown phase. The shunting occurs at the end of opening stroke of the contact arm 42 (in dotted lines) when the arc is switched on the upper horn 41. The series circuit formed by the triac 56, the bimetallic strip 34 and the coil 36 is then short -circuited by the upper horn 41.

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

Claims (7)

1. Disjoncteur électrique ayant par pôle : - une paire de contacts séparables (22,24), - un mécanisme (30) d'actionnement des contacts, - un déclencheur sur défaut commandant ledit mécanisme (30) pour provoquer l'ouverture des contacts (22, 24), en tirant un arc entre les contacts séparés, - un commutateur statique à télécommande, tel qu'un triac (56) ou deux thyristors en tête-bêche parallèle, connecté en série desdits contacts séparables (22,24),
caractérisé en ce que ledit commutateur statique (56) est dimensionné pour assurer l'établissement, l'interruption et la conduction du courant nominal, ledit disjoncteur comprenant un circuit de shuntage du commutateur statique (56), mis en circuit dès l'apparition dudit arc pour court-cir- cuiter et protéger le commutateur statique d'un courant de défaut.1. Electric circuit breaker having per pole: - a pair of separable contacts (22,24), - a mechanism (30) for actuating the contacts, - a fault trigger controlling said mechanism (30) to cause the opening of the contacts (22, 24), by drawing an arc between the separate contacts, a static remote control switch, such as a triac (56) or two parallel head-to-tail thyristors, connected in series with said separable contacts (22, 24),
characterized in that said static switch (56) is dimensioned to ensure the establishment, interruption and conduction of the nominal current, said circuit breaker comprising a shunt circuit of the static switch (56), switched on as soon as said appearance arc to short-circuit and protect the static switch from a fault current. 2. Disjoncteur électrique selon la revendication-1, caractérisé par le fait que le shuntage du commutateur statique (56) s'opère par la commutation de l'arc sur une corne (39, 41) de guidage adjacente à l'un des contacts (22,24).2. Electric circuit breaker according to claim-1, characterized in that the shunting of the static switch (56) is effected by the switching of the arc on a guide horn (39, 41) adjacent to one of the contacts (22.24). 3. Disjoncteur électrique selon la revendication 2, ayant un boîtier moulé (12) doté de bornes de raccordement (38, 40) et un déclencheur magnétique (32) et/ou thermique pour ouvrir les contacts (22,24) sur défaut, caractérisé en ce que le commutateur statique (56) est logé dans ledit boîtier (12) et est connecté en série des contacts (22,24) .et du déclencheur magnétique (32) dans un circuit principal reliant les bornes d'entrée et de sortie du pôle.3. An electric circuit breaker according to claim 2, having a molded case (12) provided with connection terminals (38, 40) and a magnetic trip (32) and / or thermal to open the contacts (22,24) on fault, characterized in that the static switch (56) is housed in said housing (12) and is connected in series with the contacts (22,24) and the magnetic trip unit (32) in a main circuit connecting the input and output terminals of the pole. 4. Disjoncteur électrique selon la revendication 3, ayant une chambre de coupure (26) associée auxdits contacts (22, 24) et des cornes de guidage (39, 41) de l'arc dans ladite chambre, caractérisé en ce que ledit circuit de shuntage est connecté auxdites bornes (38, 40) en parallèle dudit circuit principal, ledites cornes de guidage étant intercalées dans le circuit de shuntage pour rendre actif ce circuit de shuntage dès la commutation de l'arc sur les cornes de guidage (39, 41).4. An electrical circuit breaker according to claim 3, having a breaking chamber (26) associated with said contacts (22, 24) and guide horns (39, 41) of the arc in said chamber, characterized in that said circuit shuntage is connected to said terminals (38, 40) in parallel with said main circuit, the said guide horns being inserted in the shunting circuit to make this shunting circuit active as soon as the arc on the guide horns (39, 41) is switched. 5. Disjoncteur électrique selon la revendication 4, caractérisé en ce que le commutateur statique (56) est connecté électriquement entre le contact fixe (22) et la borne (40) de raccordement associée, et que la corne de guidage (39) associée au contact fixe (22) est séparée de ce dernier par un faible intervalle (66) et est reliée par un conducteur de liaison (62) à un point de raccordement (64) situé entre le commutateur statique (56) et ladite borne (40) associée au contact fixe (22).5. An electric circuit breaker according to claim 4, characterized in that the static switch (56) is electrically connected between the fixed contact (22) and the associated connection terminal (40), and that the guide horn (39) associated with the fixed contact (22) is separated from the latter by a small gap (66) and is connected by a connecting conductor (62) to a connection point (64) located between the static switch (56) and said terminal (40) associated with the fixed contact (22). 6. Disjoncteur électrique selon la revendication 4, caractérisé par le fait que le commutateur statique (56) est branché en série avec le déclencheur magnétique (32) entre le contact mobile (24) et la borne de raccordement (38) associée et que la corne de guidage (41) raccordée à cette dernière borne (38) est associée au contact mobile (24).6. Electric circuit breaker according to claim 4, characterized in that the static switch (56) is connected in series with the magnetic trip device (32) between the movable contact (24) and the associated connection terminal (38) and that the guide horn (41) connected to this last terminal (38) is associated with the movable contact (24). 7. Disjoncteur électrique selon l'une quelconque des revendications 1 à 6, caractérisé par le fait que l'électrode de commande du commutateur statique (56) est reliée à une prise de connexion (57) agencée dans le boîtier (12) et pouvant recevoir un conducteur (58) extérieur de liaison à un dispositif de télécommande (60).7. Electric circuit breaker according to any one of claims 1 to 6, characterized in that the control electrode of the static switch (56) is connected to a connection socket (57) arranged in the housing (12) and capable of receiving an external conductor (58) for connection to a remote control device (60).
EP83401751A 1982-09-17 1983-09-06 Electric circuit breaker with a remotely controlled static switching device Expired EP0104981B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8215841A FR2533363B1 (en) 1982-09-17 1982-09-17 AC CIRCUIT BREAKER EQUIPPED WITH A MAGNETOTHERMAL TRIGGER AND A STATIC SWITCHING MEMBER WITH REMOTE CONTROL
FR8215841 1982-09-17

Publications (2)

Publication Number Publication Date
EP0104981A1 true EP0104981A1 (en) 1984-04-04
EP0104981B1 EP0104981B1 (en) 1987-01-28

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ID=9277596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83401751A Expired EP0104981B1 (en) 1982-09-17 1983-09-06 Electric circuit breaker with a remotely controlled static switching device

Country Status (7)

Country Link
US (1) US4531172A (en)
EP (1) EP0104981B1 (en)
JP (1) JPS5966030A (en)
CA (1) CA1200305A (en)
DE (1) DE3369597D1 (en)
ES (1) ES8404757A1 (en)
FR (1) FR2533363B1 (en)

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DE3615340A1 (en) * 1985-05-06 1986-11-06 La Télémécanique Electrique, Nanterre, Hauts-de-Seine INTERRUPTER DEVICE WITH PROTECTION AGAINST SHORT CIRCUIT CURRENTS
FR2584529A1 (en) * 1985-07-04 1987-01-09 Merlin Gerin ELECTRIC CIRCUIT BREAKER, ESPECIALLY FOR CAPACITOR BATTERIES
FR2595164A1 (en) * 1986-02-28 1987-09-04 Merlin Gerin Current cutting apparatus with static switch and integrated protection circuit breaker
FR2595163A1 (en) * 1986-02-28 1987-09-04 Merlin Gerin Electric circuit breaker with improved protection
EP0236202A1 (en) * 1986-02-28 1987-09-09 Merlin Gerin Current-switching apparatus with a static switch and protective circuit breaker
FR2618270A1 (en) * 1987-07-17 1989-01-20 Telemecanique Electrique CIRCUIT AND APPARATUS FOR PROTECTED LOAD POWER SUPPLY USING STATIC AND ELECTROMECHANICAL SWITCHES.
FR2651915A1 (en) * 1989-09-13 1991-03-15 Merlin Gerin ULTRA-FAST STATIC CIRCUIT BREAKER WITH GALVANIC ISOLATION.
EP0589779A1 (en) * 1992-09-25 1994-03-30 Schneider Electric Sa Magnetic blow-out circuit breaker
EP0633584A1 (en) * 1993-07-05 1995-01-11 Schneider Electric Sa Protection and control device for electrical load
EP0649157A1 (en) * 1993-10-15 1995-04-19 Schneider Electric Sa Electrical protection device with a circuit breaker and an effector
EP0649156A1 (en) * 1993-10-15 1995-04-19 Schneider Electric Sa Protective apparatus formed by connecting in series a circuit breaker with a switching device
EP0780861A1 (en) 1995-12-21 1997-06-25 Schneider Electric Sa Electrical device with arc commutation
WO2002031849A1 (en) * 2000-10-12 2002-04-18 Eaton Corporation Circuit breaker with bypass for redirecting high transient current and associated method
US9998117B2 (en) 2015-12-10 2018-06-12 Abb Schweiz Ag Solid state resettable fuses

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US4965694A (en) * 1989-03-30 1990-10-23 Square D Company Remote controlled circuit breaker system
US5301083A (en) * 1991-09-30 1994-04-05 Eaton Corporation Remote control residential circuit breaker
US5373411A (en) * 1991-09-30 1994-12-13 Eaton Corporation Remote control circuit breaker system
DE19530494B4 (en) * 1995-08-18 2005-04-28 Siemens Ag Circuit breaker with current limiting element
US6624989B2 (en) * 2001-05-18 2003-09-23 Franklin Electric Company, Inc. Arc suppressing circuit employing a triggerable electronic switch to protect switch contacts
US6917500B2 (en) * 2002-04-08 2005-07-12 Harris Corporation Hybrid relay including solid-state output and having non-volatile state-retention and associated methods
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JP6694251B2 (en) * 2015-08-31 2020-05-13 テンパール工業株式会社 Residential distribution board
DE102016105341B4 (en) * 2016-03-22 2022-05-25 Eaton Intelligent Power Limited protective switching device
US10650993B1 (en) * 2019-03-19 2020-05-12 Siemens Industry, Inc. Circuit breaker with enhanced arc extinguishing chamber
CN111952130B (en) * 2020-06-29 2023-10-03 深圳微羽智能科技有限公司 Double breakpoint mechanism

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Cited By (31)

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Publication number Priority date Publication date Assignee Title
DE3615340A1 (en) * 1985-05-06 1986-11-06 La Télémécanique Electrique, Nanterre, Hauts-de-Seine INTERRUPTER DEVICE WITH PROTECTION AGAINST SHORT CIRCUIT CURRENTS
FR2581477A1 (en) * 1985-05-06 1986-11-07 Telemecanique Electrique INTERRUPTER APPARATUS PROTECTED AGAINST SHORT CIRCUIT CURRENTS
EP0204594A1 (en) * 1985-05-06 1986-12-10 Telemecanique Interrupting device protected against short-circuit currents
FR2584529A1 (en) * 1985-07-04 1987-01-09 Merlin Gerin ELECTRIC CIRCUIT BREAKER, ESPECIALLY FOR CAPACITOR BATTERIES
EP0211707A1 (en) * 1985-07-04 1987-02-25 Merlin Gerin Electric circuit breaker contactor for capacitor batteries
US4725911A (en) * 1985-07-04 1988-02-16 Merlin Gerin Electrical circuit breaker-contactor, notably for capacitor banks
FR2595163A1 (en) * 1986-02-28 1987-09-04 Merlin Gerin Electric circuit breaker with improved protection
EP0236202A1 (en) * 1986-02-28 1987-09-09 Merlin Gerin Current-switching apparatus with a static switch and protective circuit breaker
FR2595164A1 (en) * 1986-02-28 1987-09-04 Merlin Gerin Current cutting apparatus with static switch and integrated protection circuit breaker
FR2618270A1 (en) * 1987-07-17 1989-01-20 Telemecanique Electrique CIRCUIT AND APPARATUS FOR PROTECTED LOAD POWER SUPPLY USING STATIC AND ELECTROMECHANICAL SWITCHES.
FR2651915A1 (en) * 1989-09-13 1991-03-15 Merlin Gerin ULTRA-FAST STATIC CIRCUIT BREAKER WITH GALVANIC ISOLATION.
EP0421891A1 (en) * 1989-09-13 1991-04-10 Schneider Electric Sa Static quick cut out with galvanic disconnection
US5132865A (en) * 1989-09-13 1992-07-21 Merlin Gerin Ultra high-speed circuit breaker with galvanic isolation
FR2696273A1 (en) * 1992-09-25 1994-04-01 Telemecanique Electric circuit breaker with magnetic blow.
EP0589779A1 (en) * 1992-09-25 1994-03-30 Schneider Electric Sa Magnetic blow-out circuit breaker
US5373273A (en) * 1992-09-25 1994-12-13 Telemecanique Electric circuit-breaker of the magnetic arc extinction type
EP0633584A1 (en) * 1993-07-05 1995-01-11 Schneider Electric Sa Protection and control device for electrical load
FR2707437A1 (en) * 1993-07-05 1995-01-13 Telemecanique Protection and control device for electric charge.
US5493264A (en) * 1993-10-15 1996-02-20 Schneider Electric Sa Protection apparatus formed by association of a circuit breaker in series with an effector
EP0649156A1 (en) * 1993-10-15 1995-04-19 Schneider Electric Sa Protective apparatus formed by connecting in series a circuit breaker with a switching device
FR2711270A1 (en) * 1993-10-15 1995-04-21 Merlin Gerin Electrical protection equipment with circuit breaker and effector.
FR2711271A1 (en) * 1993-10-15 1995-04-21 Merlin Gerin Protective equipment formed by the association of a circuit breaker in series with an effector.
EP0649157A1 (en) * 1993-10-15 1995-04-19 Schneider Electric Sa Electrical protection device with a circuit breaker and an effector
US5539365A (en) * 1993-10-15 1996-07-23 Schneider Electric Sa Electrical protection apparatus with circuit breaker and effector
EP0780861A1 (en) 1995-12-21 1997-06-25 Schneider Electric Sa Electrical device with arc commutation
FR2742916A1 (en) * 1995-12-21 1997-06-27 Schneider Electric Sa ELECTRICAL DEVICE WITH ARC SWITCHING
US5777286A (en) * 1995-12-21 1998-07-07 Schneider Electric Sa Electric device having separable contacts with arc switching
WO2002031849A1 (en) * 2000-10-12 2002-04-18 Eaton Corporation Circuit breaker with bypass for redirecting high transient current and associated method
GB2384625A (en) * 2000-10-12 2003-07-30 Eaton Corp Circuit breaker with bypass for redirecting high transient current and associated method
AU2002212566B2 (en) * 2000-10-12 2005-07-07 Eaton Corporation Circuit breaker with bypass for redirecting high transient current and associated method
US9998117B2 (en) 2015-12-10 2018-06-12 Abb Schweiz Ag Solid state resettable fuses

Also Published As

Publication number Publication date
EP0104981B1 (en) 1987-01-28
FR2533363B1 (en) 1985-11-08
US4531172A (en) 1985-07-23
CA1200305A (en) 1986-02-04
ES525452A0 (en) 1984-05-16
JPH0338694B2 (en) 1991-06-11
ES8404757A1 (en) 1984-05-16
DE3369597D1 (en) 1987-03-05
FR2533363A1 (en) 1984-03-23
JPS5966030A (en) 1984-04-14

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