EP0442409A1 - DC-contactor for high power - Google Patents

DC-contactor for high power Download PDF

Info

Publication number
EP0442409A1
EP0442409A1 EP91101860A EP91101860A EP0442409A1 EP 0442409 A1 EP0442409 A1 EP 0442409A1 EP 91101860 A EP91101860 A EP 91101860A EP 91101860 A EP91101860 A EP 91101860A EP 0442409 A1 EP0442409 A1 EP 0442409A1
Authority
EP
European Patent Office
Prior art keywords
contactor
contact
circuit
spring
pusher
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
EP91101860A
Other languages
German (de)
French (fr)
Other versions
EP0442409B1 (en
Inventor
Jean-Pierre Vernier
René Campan
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.)
Alstom Holdings SA
Original Assignee
GEC Alsthom 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 GEC Alsthom SA filed Critical GEC Alsthom SA
Publication of EP0442409A1 publication Critical patent/EP0442409A1/en
Application granted granted Critical
Publication of EP0442409B1 publication Critical patent/EP0442409B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic

Definitions

  • the present invention relates to a direct current contactor for high powers, comprising a main conduction circuit with fixed contacts and movable contact, and a cut-off circuit with fixed contact and rotary lever around an axis and provided at its end with a contact, with control member provided with a pusher capable of pushing a movable core towards the rotary lever by means of at least one spring.
  • Such contactors constitute safety devices with electropneumatic or electromagnetic control arranged in electrical power blocks, or in rail traction in engine or car trunks. They must establish, maintain and interrupt the continuity of electrical networks with direct current of voltage in general 750 or 1500 volts, supplied at intensities between 0 and 1200 nominal amps, with peaks likely to temporarily reach 5000 amps. They must often, especially for electric traction, operate under very difficult conditions: fluctuations in the ambient temperature, polluted atmosphere, vibrations, electrical overload, and ensure prolonged service even in very sustained use.
  • the object of the present invention is to provide a direct current contactor for high powers with improved durability, more compact, lighter, the cut-off circuit of which operates only for relatively short periods of time, and possibly which ensures the blowing of the liquid more quickly. 'arc, and is more easily adaptable to different circuits and to fixtures in different positions.
  • FIG. 1A represents the contactor in the open position of the cut-off and conduction circuits, with the exception of the arc extinguishing chimney.
  • Figure 1B shows the arc extinguishing chimney.
  • Figure 2 shows on a larger scale the cartridge ensuring the contact pressure.
  • FIG. 3 shows the contactor in the closed position of the cut-off circuit, the conduction circuit remaining open (without the arc extinguishing chimney).
  • FIG. 4 shows it in the closed position of the breaking and conduction circuits (also without the arc extinguishing chimney).
  • FIG. 5 shows on a larger scale the device for fixing the chimney to the contactor.
  • Figure 6 shows on a larger scale the plastic housing comprising the attachment of the auxiliary control contacts and the cam slide actuating them.
  • Figure 7 shows on a larger scale the fixing system by pins of the connections in two different positions.
  • control member being constituted by a jack and the pusher being constituted by the piston of the jack.
  • the main conduction circuit comprises two current input and output connections 1, 2 made of copper provided with silver pellets 4, and a movable contact made of copper 3 also provided with silver pellets 5, intended to be driven in the closed position by a movable core to which it is integral, this movable core being actuated by the rod 17 of a jack 16.
  • the cut-off circuit comprises a movable insulating lever 6 provided with a cut-off contact 7 made of copper-tungsten at one end and rotating around an axis 8 at the other end under the effect of the pressure of the movable core.
  • This contact is electrically connected to connection 2 by means of a copper plate 9A passing through the lever and being connected by a braid 10 to connection 2.
  • a blowing coil 11 comprising numerous turns of fine enameled wire, connected to the main circuit by connection 1, ends with a fixed breaking contact 7A, also made of copper-tungsten.
  • the contact pressure generated by the rod 17 of the jack 16 is exerted on the spring 18 housed in the cage 19. It is transmitted by the latter to the bottom 20 of a movable core 20A, surrounded by a return spring 9.
  • the bottom 20 supports in a bowl the end of a spring 21, the other end of which bears on the plate 22 arranged below the insulating movable lever 6.
  • the movable contact 3 is integral with the movable core 20A but has a small angle of rotation around the axis of rotation 36 (see Figure 7) attached to the end of the movable core.
  • the contact pressure is thus ensured independently of the air pressure of the pneumatic circuit of the jack, in a reduced bulk and by limiting to the minimum the connection between the pneumatic control system and the internal mechanical members of the contactor.
  • the blowing chimney 12 (FIG. 1B) is removably fixed to the body of the contactor by a retractable finger 23 pushed by a spring 24 on a lug 26 (FIG. 5).
  • This chimney comprises symmetrical horns 13, 14 flaring outwards.
  • the arc extinguishing zone is constituted by a series of metal plates 15, arranged in a fan along a determined radius, and spaced by a precise interval and increasing towards the outside. They lead to a closure device 16 formed by insulating plates perforated with multiple holes.
  • a molded plastic case 25 (FIG. 6) has six auxiliary contacts 25A fixed by Rp bolts 27A and a cam slide 27 sliding inside and actuating these auxiliary contacts, the role of which is to control the closing or opening state. contactor.
  • This box which incorporates all the low voltage control functions, is fixed by bolts 27B on the contactor body, but can be quickly detached from it to be replaced if necessary by another.
  • connection 1 is fixed by pins at 28 and 30, and connection 2 by pins at 31 and 33.
  • connection 1A is fixed by pins at 28 and 34, and connection 2 by pins at 33 and 35.
  • the cutting lever 6 in support no longer moves, but the movable core 20A can continue its ascent, then compressing the spring 21 located under the lever, and thus providing the contact pressure necessary for the good conduction of the current in the breaking circuit.
  • the movable core continuing to climb, pushes up the movable contact 3 which closes the conduction contacts 4 and 5, closing the conduction circuit.
  • the current flowing until then entirely in the cut-off circuit is transferred almost entirely in the conduction circuit much less resistive.
  • the movable core no longer moves.
  • the piston rod performs an additional stroke of approximately 2 mm before reaching the stop in the jack, by pushing in the pre-stressed spring 18 placed in the cage 19, which will provide the contact pressure necessary for good conduction. of current in the main circuit passing through the contacts 4, 5. The contactor is then closed.
  • the spring 21 disposed under the cut-off lever 6 relaxes, while keeping this lever stationary and therefore the cut-off circuit closed. However, the conduction circuit opens. The current is then diverted in its entirety from the conduction circuit to the breaking circuit.
  • the movable core 20A and the cut-off lever 6 end their downward stroke.
  • the arc extends between the contacts 7, 7A.
  • the arc is blown in the arc quenching chimney 12 between the horns 13, 14 towards the plates 15 where it disappears .
  • the coil 11, made up of numerous coils of fine wire, does not heat up when the contactor is closed, since it then only passes about 1% of the total current in the breaking circuit.
  • the closure device 16A channels the flow of outlet gases and stabilizes the arc in the metal plates 15 and avoids the manifestations of arcing outside.
  • the high efficiency of the fan-shaped plate system, with increasing spacing outwards, makes it possible to reduce the dimensions of the chimney compared to the dimensions adopted so far.
  • the above arrangement of the conduction contacts and the breaking contacts, as well as of the lever, of the movable core and of the springs makes it possible to transfer the current from one circuit to the other during the transient phases of closing and opening, by specializing in the types of contact and making the most of their advantages.
  • the silver conductive contacts are not damaged by electric arcs which only appear on the breaking contacts. This limits the wear of the contacts and increases their longevity.
  • the breaking contacts are made of copper-tungsten, making it possible to withstand the arc well. This limits the wear of these contacts.
  • control member is an electromagnet and the pusher is constituted by the movable armature of the electromagnet.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Contacts (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Keying Circuit Devices (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)

Abstract

DC contactor for high power, comprising a main conduction circuit with fixed contacts (4) and moving contact (3), and a cutoff circuit with fixed contact (7A) and lever (6) rotatable about an axis (8) and provided at its end with a contact (7), with operating member (16) provided with a thruster able to repel a moveable core (20A) towards the rotary lever by way of at least one spring. Its moving conduction contact (3) is arranged between the rotary lever (6) and the fixed conduction contacts (4) and is supported by the moveable core at a point situated between the axis (8) and the cutoff contact (7) of the rotary lever. <IMAGE>

Description

La présente invention concerne un contacteur à courant continu pour puissances élevées, comprenant un circuit de conduction principal à contacts fixes et contact mobile, et un circuit de coupure à contact fixe et levier rotatif autour d'un axe et muni à son extrémité d'un contact, avec organe de commande muni d'un poussoir susceptible de repousser un noyau mobile vers le levier rotatif par l'intermédiaire d'au moins un ressort.The present invention relates to a direct current contactor for high powers, comprising a main conduction circuit with fixed contacts and movable contact, and a cut-off circuit with fixed contact and rotary lever around an axis and provided at its end with a contact, with control member provided with a pusher capable of pushing a movable core towards the rotary lever by means of at least one spring.

De tels contacteurs constituent des dispositifs de sécurité à commande électropneumatique ou électromagnétique disposés dans des blocs électriques de puissance, ou en traction ferroviaire dans des coffres de motrices ou de voitures. Ils doivent établir, maintenir et interrompre la continuité de réseaux électriques à courant continu de tension en général 750 ou 1500 volts, alimentés sous des intensités comprises entre 0 et 1200 ampères nominales, avec des pointes susceptibles d'atteindre transitoirement 5000 ampères. Ils doivent souvent, notamment pour la traction électrique, fonctionner dans des conditions très difficiles : fluctuations de la température ambiante, atmosphère polluée, vibrations, surcharge électrique, et assurer un service prolongé même en utilisation très soutenue.Such contactors constitute safety devices with electropneumatic or electromagnetic control arranged in electrical power blocks, or in rail traction in engine or car trunks. They must establish, maintain and interrupt the continuity of electrical networks with direct current of voltage in general 750 or 1500 volts, supplied at intensities between 0 and 1200 nominal amps, with peaks likely to temporarily reach 5000 amps. They must often, especially for electric traction, operate under very difficult conditions: fluctuations in the ambient temperature, polluted atmosphere, vibrations, electrical overload, and ensure prolonged service even in very sustained use.

Les contacteurs connus ne présentent pas une longévité satisfaisante, du fait d'une usure assez rapide, en particulier des contacts, sous l'effet des arcs qui apparaissent et que les organes de soufflage ne permettent pas d'éliminer assez rapidement. Par ailleurs, ils sont relativement encombrants et lourds, et sont difficiles à régler pour les adapter à des circuits électriques différents ou à les monter dans des positions différentes, horizontale ou verticale notamment.Known contactors do not have a satisfactory longevity, due to fairly rapid wear, in particular of the contacts, under the effect of arcs which appear and which the blowing members do not make it possible to eliminate quickly enough. Furthermore, they are relatively bulky and heavy, and are difficult to adjust to adapt them to different electrical circuits or to mount them in different positions, horizontal or vertical in particular.

La présente invention a pour but de procurer un contacteur à courant continu pour puissances élevées de longévité améliorée, plus compact, plus léger, dont le circuit de coupure ne fonctionne que pendant des durées relativement faibles, et éventuellement qui assure plus rapidement le soufflage de l'arc, et soit plus facilement adaptable à des circuits différents et à des montages dans des positions différentes.The object of the present invention is to provide a direct current contactor for high powers with improved durability, more compact, lighter, the cut-off circuit of which operates only for relatively short periods of time, and possibly which ensures the blowing of the liquid more quickly. 'arc, and is more easily adaptable to different circuits and to fixtures in different positions.

L'invention a donc pour objet un contacteur à courant continu pour puissances élevées comprenant un circuit de conduction principal comportant des connexions d'entrée et de sortie pouvant être reliées par un contact mobile, le contacteur comprenant également un circuit de coupure pouvant se brancher en parallèle sur le circuit de conduction principal, le circuit de coupure étant relié électriquement à l'une desdites connexions et comportant un levier équipé d'un contact de coupure destiné à contacter électriquement l'autre desdites connexions, ce levier pouvant pivoter autour d'un axe et comportant une partie isolante, le contacteur comportant également des moyens de fermeture et d'ouverture des circuits de conduction principal et de coupure, caractérisé en ce que lesdits moyens de fermeture et d'ouverture comprennent, disposés en alignement dans le contacteur, un organe de commande muni d'un poussoir, un noyau mobile sur lequel agit le poussoir, un ressort disposé sur le noyau mobile, le levier et le contact mobile solidaire du noyau mobile, la disposition des moyens de fermeture et d'ouverture étant telle que :

  • à la fermeture du contacteur, le poussoir pousse le noyau mobile et le ressort qui déplace le levier jusqu'à une position fixe pour laquelle le circuit de coupure est fermé, le contact mobile poussé par le noyau mobile venant ensuite fermer le circuit de conduction principal tandis que le ressort se comprime,
  • à l'ouverture du contacteur, le retrait du poussoir entraîne le recul du noyau mobile grâce à des moyens élastiques de rappel et à la détente du ressort et provoque l'ouverture du circuit de conduction principal par recul du contact mobile, le circuit de coupure s'ouvrant ensuite par pression du contact mobile en cours de retrait sur le levier.
The invention therefore relates to a DC contactor for high powers comprising a main conduction circuit comprising input and output connections which can be connected by a movable contact, the contactor also comprising a cut-off circuit which can be connected in parallel to the main conduction circuit, the cut-off circuit being electrically connected to one of said connections and comprising a lever equipped with a cut-off contact intended to electrically contact the other of said connections, this lever being able to pivot about an axis and comprising an insulating part, the contactor also comprising means for closing and opening circuits main and breaking conduction, characterized in that said closing and opening means comprise, arranged in alignment in the contactor, a control member provided with a pusher, a movable core on which the pusher acts, a spring arranged on the movable core, the lever and the movable contact secured to the movable core, the arrangement of the closing and opening means being such that:
  • when the contactor closes, the pusher pushes the movable core and the spring which moves the lever to a fixed position for which the cut-off circuit is closed, the movable contact pushed by the movable core then closing the main conduction circuit while the spring compresses,
  • at the opening of the contactor, the withdrawal of the pusher causes the movable core to retreat thanks to elastic return means and to the relaxation of the spring and causes the opening of the main conduction circuit by retraction of the movable contact, the cut-off circuit then opening by pressing the movable contact being withdrawn on the lever.

Il répond en outre de préférence à au moins l'une des caractéristiques suivantes :

  • Un premier ressort disposé entre le noyau mobile et le levier rotatif est de force suffisante pour assurer la pression d'appui du contact mobile de coupure sur le contact fixe, un ressort précontraint est disposé dans une cartouche placée entre la tête du poussoir et le noyau mobile, et la course du poussoir est telle qu'après mise en appui du contact de conduction mobile sur ses contacts fixes, il vienne comprimer le ressort précontraint en assurant la pression d'appui des contacts de conduction.
  • Un ressort de rappel s'appuyant sur un épaulement du noyau mobile permet de ramener le poussoir vers le bas lorsque la commande est supprimée.
  • Il comprend des contacts auxiliaires de contrôle de son état de fermeture ou d'ouverture et un tiroir à cames coulissant actionnant ces contacts, qui sont montés dans un boîtier commun amovible.
  • Pour un montage en position soit horizontale, soit verticale, il comprend deux jeux d'organes de fixation par pions des connexions, adaptés à l'un ou à l'autre montage.
  • Il comporte une bobine de création du champ magnétique de soufflage de l'arc, disposée en série dans le circuit de coupure.
  • Sa cheminée de soufflage de l'arc comporte entre des cornes une série de plaques métalliques disposées en éventail, séparées par un intervalle précis croissant de leur extrémité plus proche des contacts de coupure à leur extrémité plus éloignée.
  • Sa cheminée de soufflage d'arc est fixée à son boîtier par un doigt escamotable poussé par un ressort de maintien en position.
It also preferably meets at least one of the following characteristics:
  • A first spring disposed between the movable core and the rotary lever is of sufficient force to ensure the contact pressure of the movable breaking contact on the fixed contact, a prestressed spring is disposed in a cartridge placed between the head of the pusher and the core mobile, and the stroke of the pusher is such that after the mobile conduction contact has been pressed on its fixed contacts, it comes to compress the prestressed spring while ensuring the contact pressure of the conduction contacts.
  • A return spring resting on a shoulder of the movable core allows you to bring the button down when the command is deleted.
  • It includes auxiliary contacts for controlling its closing or opening state and a sliding cam drawer actuating these contacts, which are mounted in a removable common housing.
  • For mounting in either a horizontal or vertical position, it comprises two sets of fixing members by connection pins, suitable for one or the other mounting.
  • It comprises a coil for creating the magnetic arc blowing field, arranged in series in the breaking circuit.
  • Its arc blowing chimney comprises between horns a series of metal plates arranged in a fan, separated by a precise interval increasing from their end closer to the breaking contacts to their more distant end.
  • Its arc blowing chimney is fixed to its housing by a retractable finger pushed by a spring to hold it in position.

Il est décrit ci-après, à titre d'exemple et en référence aux figures du dessin annexé, un contacteur à courant continu pour grandes puissances selon l'invention.It is described below, by way of example and with reference to the figures of the appended drawing, a DC contactor for large powers according to the invention.

La figure 1A représente le contacteur en position d'ouverture des circuits de coupure et de conduction, à l'exception de la cheminée d'extinction d'arc.FIG. 1A represents the contactor in the open position of the cut-off and conduction circuits, with the exception of the arc extinguishing chimney.

La figure 1B représente la cheminée d'extinction d'arc.Figure 1B shows the arc extinguishing chimney.

La figure 2 représente à plus grande échelle la cartouche assurant la pression de contact.Figure 2 shows on a larger scale the cartridge ensuring the contact pressure.

La figure 3 représente le contacteur en position de fermeture du circuit de coupure, le circuit de conduction restant ouvert (sans la cheminée d'extinction d'arc).FIG. 3 shows the contactor in the closed position of the cut-off circuit, the conduction circuit remaining open (without the arc extinguishing chimney).

La figure 4 le représente en position de fermeture des circuits de coupure et de conduction (également sans la cheminée d'extinction d'arc).FIG. 4 shows it in the closed position of the breaking and conduction circuits (also without the arc extinguishing chimney).

La figure 5 représente à plus grande échelle le dispositif de fixation de la cheminée sur le contacteur.FIG. 5 shows on a larger scale the device for fixing the chimney to the contactor.

La figure 6 représente à plus grande échelle le boîtier plastique comportant la fixation des contacts auxiliaires de contrôle et le tiroir à cames les actionnant.Figure 6 shows on a larger scale the plastic housing comprising the attachment of the auxiliary control contacts and the cam slide actuating them.

La figure 7 représente à plus grande échelle le système de fixation par pions des connexions en deux positions différentes.Figure 7 shows on a larger scale the fixing system by pins of the connections in two different positions.

La description portera plus précisément sur un contacteur à commande électropneumatique, l'organe de commande étant constitué par un vérin et le poussoir étant constitué par le piston du vérin.The description will relate more specifically to an electropneumatic contactor, the control member being constituted by a jack and the pusher being constituted by the piston of the jack.

Dans la figure 1A, le circuit de conduction principal comprend deux connexions d'entrée et de sortie du courant 1, 2 en cuivre munies de pastilles d'argent 4, et un contact mobile en cuivre 3 muni également de pastilles d'argent 5, destiné à être entraîné en position de fermeture par un noyau mobile auquel il est solidaire, ce noyau mobile étant actionné par la tige 17 d'un vérin 16.In FIG. 1A, the main conduction circuit comprises two current input and output connections 1, 2 made of copper provided with silver pellets 4, and a movable contact made of copper 3 also provided with silver pellets 5, intended to be driven in the closed position by a movable core to which it is integral, this movable core being actuated by the rod 17 of a jack 16.

Le circuit de coupure comprend un levier mobile isolant 6 muni d'un contact de coupure 7 en cuivre-tungstène à une extrémité et tournant autour d'un axe 8 à l'autre extrémité sous l'effet de la pression du noyau mobile. Ce contact est relié électriquement à la connexion 2 par l'intermédiaire d'un plat de cuivre 9A traversant le levier et se raccordant par une tresse 10 à la connexion 2. Une bobine de soufflage 11 comportant de nombreuses spires en fil émaillé fin, reliée au circuit principal par la connexion 1, se termine par un contact fixe de coupure 7A, également en cuivre-tungstène.The cut-off circuit comprises a movable insulating lever 6 provided with a cut-off contact 7 made of copper-tungsten at one end and rotating around an axis 8 at the other end under the effect of the pressure of the movable core. This contact is electrically connected to connection 2 by means of a copper plate 9A passing through the lever and being connected by a braid 10 to connection 2. A blowing coil 11 comprising numerous turns of fine enameled wire, connected to the main circuit by connection 1, ends with a fixed breaking contact 7A, also made of copper-tungsten.

Comme représenté à plus grande échelle en figure 2, la pression de contact engendrée par la tige 17 du vérin 16 s'exerce sur le ressort 18 logé dans la cage 19. Elle est transmise par celui-ci au fond 20 d'un noyau mobile 20A, entouré par un ressort de rappel 9. Le fond 20 supporte dans une cuvette l'extrémité d'un ressort 21 dont l'autre extrémité vient en appui sur le plateau 22 disposé au-dessous du levier mobile isolant 6. Le contact mobile 3 est solidaire du noyau mobile 20A mais possède d'un petit angle de rotation autour de l'axe de rotation 36 (voir figure 7) fixé à l'extrémité du noyau mobile.As shown on a larger scale in FIG. 2, the contact pressure generated by the rod 17 of the jack 16 is exerted on the spring 18 housed in the cage 19. It is transmitted by the latter to the bottom 20 of a movable core 20A, surrounded by a return spring 9. The bottom 20 supports in a bowl the end of a spring 21, the other end of which bears on the plate 22 arranged below the insulating movable lever 6. The movable contact 3 is integral with the movable core 20A but has a small angle of rotation around the axis of rotation 36 (see Figure 7) attached to the end of the movable core.

La pression de contact est ainsi assurée indépendamment de la pression d'air du circuit pneumatique du vérin, dans un encombrement réduit et en limitant au minimum la liaison entre le système de commande pneumatique et les organes mécaniques internes du contacteur.The contact pressure is thus ensured independently of the air pressure of the pneumatic circuit of the jack, in a reduced bulk and by limiting to the minimum the connection between the pneumatic control system and the internal mechanical members of the contactor.

La cheminée de soufflage 12 (figure 1B) est fixée de façon amovible au corps du contacteur par un doigt escamotable 23 poussé par un ressort 24 sur un ergot 26 (figure 5). On assure ainsi un maintien mécanique et une continuité électrique fiable entre la cheminée et le contacteur. Cette cheminée comporte des cornes symétriques 13, 14 s'évasant vers l'extérieur. La zone d'extinction d'arc est constituée par une série de plaques métalliques 15, disposées en éventail suivant un rayon déterminé, et espacées par un intervalle précis et croissant vers l'extérieur. Elles aboutissent à un dispositif d'obturation 16 formé par des plaques isolantes perforées de multiples trous.The blowing chimney 12 (FIG. 1B) is removably fixed to the body of the contactor by a retractable finger 23 pushed by a spring 24 on a lug 26 (FIG. 5). This provides mechanical support and reliable electrical continuity between the chimney and the contactor. This chimney comprises symmetrical horns 13, 14 flaring outwards. The arc extinguishing zone is constituted by a series of metal plates 15, arranged in a fan along a determined radius, and spaced by a precise interval and increasing towards the outside. They lead to a closure device 16 formed by insulating plates perforated with multiple holes.

Un boîtier plastique moulé 25 (figure 6) comporte six contacts auxiliaires 25A fixés par boulons Rp 27A et un tiroir à cames 27 coulissant dans son intérieur et actionnant ces contacts auxiliaires, dont le rôle est de contrôler l'état de fermeture ou d'ouverture du contacteur. Ce boîtier, qui intègre toutes les fonctions basse tension de contrôle, est fixé par des boulons 27B sur le corps du contacteur, mais peut en être détaché rapidement pour être remplacé le cas échéant par un autre.A molded plastic case 25 (FIG. 6) has six auxiliary contacts 25A fixed by Rp bolts 27A and a cam slide 27 sliding inside and actuating these auxiliary contacts, the role of which is to control the closing or opening state. contactor. This box, which incorporates all the low voltage control functions, is fixed by bolts 27B on the contactor body, but can be quickly detached from it to be replaced if necessary by another.

Les connexions du contacteur peuvent prendre deux positions différentes, représentées respectivement sur la figure 7 en 1 et 2 en traits pleins, ou 1A et 2A en traits interrompus, suivant les positions horizontale ou verticale dans laquelle on doit placer le contacteur. Dans la position représentée en traits pleins, la connexion 1 est fixée par des pions en 28 et 30, et la connexion 2 par des pions 31 et 33. Dans la position représentée en traits interrompus, la connexion 1A est fixée par des pions en 28 et 34, et la connexion 2 par des pions en 33 et 35.The contactor connections can take two different positions, shown respectively in FIG. 7 in 1 and 2 in solid lines, or 1A and 2A in broken lines, depending on the horizontal or vertical position in which the contactor must be placed. In the position shown in solid lines, connection 1 is fixed by pins at 28 and 30, and connection 2 by pins at 31 and 33. In the position shown in broken lines, connection 1A is fixed by pins at 28 and 34, and connection 2 by pins at 33 and 35.

Le fonctionnement du contacteur à la fermeture est le suivant, à partir de la position où les contacts de coupure et de conduction sont ouverts (figure 1A).The operation of the contactor on closing is as follows, starting from the position where the breaking and conducting contacts are open (FIG. 1A).

A l'admission d'air dans le vérin 16, la tige 17 du piston monte vers le haut de la figure et entraîne le noyau mobile 20A ainsi que le levier de coupure 6 par l'intermédiaire du ressort 21. Lors de la montée du noyau mobile, le ressort de rappel 9 situé autour de cette cartouche est comprimé. Lorsque ce noyau mobile a effectué une course d'environ 8 mm, le contact mobile de coupure 7 à l'extrémité du levier 6 vient toucher le contact fixe de coupure 7A. Le courant s'établit alors dans le circuit de coupure (figure 3).When air is admitted into the jack 16, the piston rod 17 goes up towards the top of the figure and drives the movable core 20A as well as the cut-off lever 6 via the spring 21. When the movable core, the return spring 9 located around this cartridge is compressed. When this movable core has made a stroke of approximately 8 mm, the movable cut-off contact 7 at the end of the lever 6 comes to touch the fixed cut-off contact 7A. The current is then established in the cut-off circuit (Figure 3).

Le levier de coupure 6 en appui ne bouge plus, mais le noyau mobile 20A peut continuer son ascension, comprimant alors le ressort 21 situé sous le levier, et procurant ainsi la pression de contact nécessaire à la bonne conduction du courant dans le circuit de coupure.The cutting lever 6 in support no longer moves, but the movable core 20A can continue its ascent, then compressing the spring 21 located under the lever, and thus providing the contact pressure necessary for the good conduction of the current in the breaking circuit.

Le noyau mobile continuant sa montée, vient repousser vers le haut le contact mobile 3 qui ferme les contacts de conduction 4 et 5, fermant le circuit de conduction. Le courant circulant jusqu'alors entièrement dans le circuit de coupure est transféré en presque totalité dans le circuit de conduction beaucoup moins résistif.The movable core continuing to climb, pushes up the movable contact 3 which closes the conduction contacts 4 and 5, closing the conduction circuit. The current flowing until then entirely in the cut-off circuit is transferred almost entirely in the conduction circuit much less resistive.

Une fois les contacts de conduction fermés, le noyau mobile ne bouge plus. Par contre, la tige du piston effectue une course supplémentaire d'environ 2 mm avant d'arriver en butée dans le vérin, en enfonçant le ressort précontraint 18 disposé dans la cage 19, qui va procurer la pression de contact nécessaire à la bonne conduction du courant dans le circuit principal passant par les contacts 4, 5. Le contacteur est alors fermé.Once the conduction contacts are closed, the movable core no longer moves. On the other hand, the piston rod performs an additional stroke of approximately 2 mm before reaching the stop in the jack, by pushing in the pre-stressed spring 18 placed in the cage 19, which will provide the contact pressure necessary for good conduction. of current in the main circuit passing through the contacts 4, 5. The contactor is then closed.

Dans le sens inverse, à l'ouverture du contacteur, lorsque le vérin 16 est mis à l'atmosphère, le ressort de rappel 9 ainsi que le ressort 18 dans la cage 19 se détendent rapidement et repoussent énergiquement le noyau mobile 20A, le contact mobile 3 et la tige du piston 17 vers le bas de la figure.In the opposite direction, when the contactor opens, when the jack 16 is vented, the return spring 9 as well as the spring 18 in the cage 19 quickly relax and strongly repel the movable core 20A, the contact mobile 3 and the piston rod 17 towards the bottom of the figure.

Lors du déplacement du noyau mobile, le ressort 21 disposé sous le levier de coupure 6 se détend, tout en maintenant ce levier immobile et donc le circuit de coupure fermé. Par contre le circuit de conduction s'ouvre. Le courant est alors dévié dans sa totalité du circuit de conduction vers le circuit de coupure.During the displacement of the movable core, the spring 21 disposed under the cut-off lever 6 relaxes, while keeping this lever stationary and therefore the cut-off circuit closed. However, the conduction circuit opens. The current is then diverted in its entirety from the conduction circuit to the breaking circuit.

Lorsque le noyau mobile a effectué une certaine course vers le bas, la face inférieure du contact mobile 3 vient à toucher le levier 6 et à entraîner celui-ci. Il y a alors ouverture des contacts 7, 7A du circuit de coupure et apparition d'un arc électrique entre ceux-ci.When the movable core has made a certain downward stroke, the underside of the movable contact 3 comes to touch the lever 6 and to drive the latter. There is then opening of the contacts 7, 7A of the cut-off circuit and appearance of an electric arc between them.

Sous l'effet du ressort de rappel 9 qui continue à se détendre, le noyau mobile 20A et le levier de coupure 6 terminent leur course vers le bas. L'arc s'allonge entre les contacts 7, 7A. Toutefois, grâce au soufflage magnétique de l'arc engendré par la bobine 11 insérée dans le circuit de coupure, l'arc est soufflé dans la cheminée d'extinction d'arc 12 entre les cornes 13, 14 vers les plaques 15 où il disparaît. La bobine 11, constituée de nombreuses spires en fil fin, ne chauffe pas lorsque le contacteur est fermé, puisqu'il ne passe alors qu'environ 1 % du courant total dans le circuit de coupure. Par contre, elle est traversée transitoirement à l'ouverture du contacteur par la totalité du courant, qui passe alors par le circuit de coupure, avant même l'ouverture des contacts de coupure et l'apparition de l'arc. Le circuit magnétique est ainsi magnétisé à l'avance, et crée un champ important. Dès que l'arc apparaît, il est donc soufflé très rapidement et très énergiquement vers l'intérieur de la cheminée et les plaques 15. Il entre facilement dans l'éventail de plaques et s'y fractionne en multiples petits arcs. La tension d'arc augmente alors pour atteindre une valeur supérieure à la tension de rétablissement du réseau, et l'arc s'éteint.Under the effect of the return spring 9 which continues to relax, the movable core 20A and the cut-off lever 6 end their downward stroke. The arc extends between the contacts 7, 7A. However, thanks to the magnetic blowing of the arc generated by the coil 11 inserted in the cut-off circuit, the arc is blown in the arc quenching chimney 12 between the horns 13, 14 towards the plates 15 where it disappears . The coil 11, made up of numerous coils of fine wire, does not heat up when the contactor is closed, since it then only passes about 1% of the total current in the breaking circuit. On the other hand, it is transiently crossed at the opening of the contactor by the totality of the current, which then passes through the breaking circuit, even before the opening of the breaking contacts and the appearance of the arc. The magnetic circuit is thus magnetized in advance, and creates a large field. As soon as the arc appears, it is therefore blown very quickly and very forcefully towards the interior of the chimney and the plates 15. It easily enters the range of plates and splits into multiple small arcs. The arc voltage then increases to reach a value greater than the mains recovery voltage, and the arc is extinguished.

Le dispositif d'obturation 16A canalise le flux des gaz de sortie et stabilise l'arc dans les plaques métalliques 15 et évite les manifestations d'arc à l'extérieur. La grande efficacité du système de plaques en éventail, d'écartement croissant vers l'extérieur, permet de réduire les dimensions de la cheminée par rapport aux dimensions adoptées jusqu'ici.The closure device 16A channels the flow of outlet gases and stabilizes the arc in the metal plates 15 and avoids the manifestations of arcing outside. The high efficiency of the fan-shaped plate system, with increasing spacing outwards, makes it possible to reduce the dimensions of the chimney compared to the dimensions adopted so far.

La disposition ci-dessus des contacts de conduction et des contacts de coupure, ainsi que du levier, du noyau mobile et des ressorts permet de transférer le courant d'un circuit sur l'autre pendant les phases transitoires de fermeture et d'ouverture, en spécialisant les types de contact et exploitent leurs avantages de façon optimale. Les contacts de conduction en argent ne sont pas détériorés par des arcs électriques qui apparaissent uniquement sur les contacts de coupure. On limite ainsi l'usure des contacts et augmente leur longévité. Les contacts de coupure sont en cuivre-tungstène, permettant de bien résister à l'arc. On limite ainsi l'usure de ces contacts.The above arrangement of the conduction contacts and the breaking contacts, as well as of the lever, of the movable core and of the springs makes it possible to transfer the current from one circuit to the other during the transient phases of closing and opening, by specializing in the types of contact and making the most of their advantages. The silver conductive contacts are not damaged by electric arcs which only appear on the breaking contacts. This limits the wear of the contacts and increases their longevity. The breaking contacts are made of copper-tungsten, making it possible to withstand the arc well. This limits the wear of these contacts.

Il entre également dans le cadre de la présente invention de disposer d'une commande électromagnétique et dans ce cas l'organe de commande est un électro-aimant et le poussoir est constitué par l'armature mobile de l'électro-aimant.It is also part of the present invention to have an electromagnetic control and in this case the control member is an electromagnet and the pusher is constituted by the movable armature of the electromagnet.

Claims (10)

Contacteur à courant continu pour puissances élevées comprenant un circuit de conduction principal comportant des connexions d'entrée et de sortie (1, 2) pouvant être reliées par un contact mobile (3), le contacteur comprenant également un circuit de coupure pouvant se brancher en parallèle sur le circuit de conduction principal, le circuit de coupure étant relié électriquement à l'une desdites connexions et comportant un levier (6) équipé d'un contact de coupure (7) destiné à contacter électriquement l'autre desdites connexions, ce levier pouvant pivoter autour d'un axe (8) et comportant une partie isolante, le contacteur comportant également des moyens de fermeture et d'ouverture des circuits de conduction principal et de coupure, caractérisé en ce que lesdits moyens de fermeture et d'ouverture comprennent, disposés en alignement dans le contacteur, un organe de commande (16) muni d'un poussoir (17), un noyau mobile (20A) sur lequel agit le poussoir, un ressort (21) disposé sur le noyau mobile, le levier (6) et le contact mobile (3) solidaire du noyau mobile, la disposition des moyens de fermeture et d'ouverture étant telle que : - à la fermeture du contacteur, le poussoir (17) pousse le noyau mobile (20A) et le ressort qui déplace le levier jusqu'à une position fixe pour laquelle le circuit de coupure est fermé, le contact mobile poussé par le noyau mobile venant ensuite fermer le circuit de conduction principal tandis que le ressort (21) se comprime, - à l'ouverture du contacteur, le retrait du poussoir entraîne le recul du noyau mobile grâce à des moyens élastiques de rappel (9) et à la détente du ressort (21) et provoque l'ouverture du circuit de conduction principal par recul du contact mobile (3), le circuit de coupure s'ouvrant ensuite par pression du contact mobile en cours de retrait sur le levier (6). DC contactor for high powers comprising a main conduction circuit comprising input and output connections (1, 2) which can be connected by a movable contact (3), the contactor also comprising a cut-off circuit which can be connected by parallel to the main conduction circuit, the cut-off circuit being electrically connected to one of said connections and comprising a lever (6) equipped with a cut-off contact (7) intended to electrically contact the other of said connections, this lever able to pivot about an axis (8) and comprising an insulating part, the contactor also comprising means for closing and opening the main conduction and breaking circuits, characterized in that said closing and opening means comprise , arranged in alignment in the contactor, a control member (16) provided with a pusher (17), a movable core (20A) on which the pusher acts, a spring ( 21) disposed on the movable core, the lever (6) and the movable contact (3) integral with the movable core, the arrangement of the closing and opening means being such that: - when the contactor closes, the pusher (17) pushes the movable core (20A) and the spring which moves the lever to a fixed position for which the cut-off circuit is closed, the movable contact pushed by the movable core coming from then close the main conduction circuit while the spring (21) compresses, - when the contactor is opened, the withdrawal of the pusher causes the movable core to retreat thanks to elastic return means (9) and to the rebound of the spring (21) and causes the opening of the main conduction circuit by retraction of the movable contact (3), the cut-off circuit then opening by pressing the movable contact during removal on the lever (6). Contacteur selon la revendication 1, caractérisé en ce que le ressort (21) disposé entre le noyau mobile (20A) et le levier rotatif (6) est de force suffisante pour assurer la pression d'appui du contact mobile de coupure (7) sur le contact fixe (7A), en ce qu un ressort précontraint est disposé dans une cartouche placée entre la tête du poussoir (17) et le noyau mobile (20A), et en ce que la course du poussoir est telle qu'après mise en appui du contact de conduction mobile (3) sur ses contacts fixes, il vienne comprimer le ressort précontraint (18) en assurant la pression d'appui des contacts de conduction.Contactor according to claim 1, characterized in that the spring (21) disposed between the movable core (20A) and the rotary lever (6) is of sufficient force to ensure the contact pressure of the movable breaking contact (7) on the fixed contact (7A), in that a pre-stressed spring is disposed in a cartridge placed between the head of the pusher (17) and the movable core (20A), and in that the stroke of the pusher is such that after being put into operation support of the conduction contact mobile (3) on its fixed contacts, it comes to compress the prestressed spring (18) while ensuring the contact pressure of the conduction contacts. Contacteur selon les revendications 1 ou 2, caractérisé en ce qu'un ressort de rappel (9) s'appuyant sur un épaulement du noyau mobile (20A) permet de ramener le poussoir vers le bas à l'ouverture du contacteur.Contactor according to claims 1 or 2, characterized in that a return spring (9) resting on a shoulder of the movable core (20A) makes it possible to bring the pusher down when the contactor opens. Contacteur selon l'une des revendications 1 à 3, comprenant des contacts auxiliaires de contrôle de son état de fermeture ou d'ouverture et un tiroir à cames coulissant actionnant ces contacts, caractérisé en ce que ces contacts auxiliaires et le tiroir à cames sont montés dans un boîtier commun amovible (25).Contactor according to one of claims 1 to 3, comprising auxiliary contacts for monitoring its closed or open state and a sliding cam slide actuating these contacts, characterized in that these auxiliary contacts and the cam slide are mounted in a removable common housing (25). Contacteur selon l'une des revendications 1 à 4, pour montage en positions horizontale ou verticale, caractérisé en ce qu'il comprend deux jeux (28, 30, 28, 34 ; 31, 33, 33, 35) d'organes de fixation par pions des connexions, adaptés à l'un ou à l'autre montage.Contactor according to one of claims 1 to 4, for mounting in horizontal or vertical positions, characterized in that it comprises two sets (28, 30, 28, 34; 31, 33, 33, 35) of fixing members by connection pins, suitable for one or the other mounting. Contacteur selon l'une des revendications 1 à 5, à cheminée de soufflage de l'arc (12), caractérisé en ce qu'il comporte une bobine (11) de création du champ magnétique de soufflage disposée en série dans le circuit de coupure.Contactor according to one of claims 1 to 5, with arc blowing chimney (12), characterized in that it comprises a coil (11) for creating the magnetic blowing field arranged in series in the cut-off circuit . Contacteur selon l'une des revendications 1 à 6, à cheminée de soufflage de l'arc (12) formée par une série de plaques métalliques (15) disposées entre des cornes (13, 14), caractérisé en ce que ces plaques métalliques sont disposées en éventail, séparées par un intervalle précis croissant de leur extrémité plus proche des contacts de coupure à leur extrémité plus éloignée.Contactor according to one of claims 1 to 6, with arc blowing chimney (12) formed by a series of metal plates (15) disposed between horns (13, 14), characterized in that these metal plates are arranged in a fan, separated by a precise increasing interval from their end closer to the breaking contacts at their end more distant. Contacteur selon l'une des revendications 1 à 7, à cheminée de soufflage d'arc, caractérisé en ce que celle-ci est fixée à son boîtier par un doigt escamotable (23) poussé par un ressort de maintien en position (24).Contactor according to one of claims 1 to 7, with an arc blowing chimney, characterized in that the latter is fixed to its housing by a retractable finger (23) pushed by a spring for holding in position (24). Contacteur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'organe de commande est un vérin, le poussoir étant constitué par le piston du vérin.Contactor according to any one of the preceding claims, characterized in that the control member is a jack, the pusher being constituted by the piston of the jack. Contacteur selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'organe de commande est un électro-aimant, le poussoir étant constitué par l'armature mobile de l'électro-aimant.Contactor according to any one of Claims 1 to 8, characterized in that the control member is an electromagnet, the pusher being constituted by the movable armature of the electromagnet.
EP91101860A 1990-02-16 1991-02-11 DC-contactor for high power Expired - Lifetime EP0442409B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9001894 1990-02-16
FR9001894A FR2658659B1 (en) 1990-02-16 1990-02-16 DIRECT CURRENT CONTACTOR FOR HIGH POWER.

Publications (2)

Publication Number Publication Date
EP0442409A1 true EP0442409A1 (en) 1991-08-21
EP0442409B1 EP0442409B1 (en) 1995-01-04

Family

ID=9393807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101860A Expired - Lifetime EP0442409B1 (en) 1990-02-16 1991-02-11 DC-contactor for high power

Country Status (7)

Country Link
EP (1) EP0442409B1 (en)
AT (1) ATE116763T1 (en)
DE (1) DE69106401T2 (en)
ES (1) ES2068406T3 (en)
FR (1) FR2658659B1 (en)
HU (1) HU217393B (en)
PT (1) PT96793B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701334A1 (en) * 1993-02-05 1994-08-12 Alsthom Gec Arc blow-out chimney for a contactor
CN109065411A (en) * 2018-08-28 2018-12-21 马可文 A kind of guard method of asynchronous motor
CN109065412A (en) * 2018-08-28 2018-12-21 马可文 A kind of high pressure breaker protector

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB382728A (en) * 1931-10-06 1932-11-03 Allen West & Co Ltd Improvements in or relating to electrical contactors
FR60867E (en) * 1950-02-10 1955-02-01 Merlin Gerin Improvements made to spark arresters of circuit breakers, etc.
US2769062A (en) * 1952-10-21 1956-10-30 Westinghouse Electric Corp Air circuit breaker contacts
CH418435A (en) * 1964-03-26 1966-08-15 Stotz Kontakt Gmbh Switching device, especially air contactor for high inrush current peaks
EP0219570A1 (en) * 1985-10-24 1987-04-29 Square D Company (Deutschland) Gmbh Switching device
EP0222058A1 (en) * 1985-11-05 1987-05-20 Bruno Martinetti Universal switch with integral contact tabs

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB382728A (en) * 1931-10-06 1932-11-03 Allen West & Co Ltd Improvements in or relating to electrical contactors
FR60867E (en) * 1950-02-10 1955-02-01 Merlin Gerin Improvements made to spark arresters of circuit breakers, etc.
US2769062A (en) * 1952-10-21 1956-10-30 Westinghouse Electric Corp Air circuit breaker contacts
CH418435A (en) * 1964-03-26 1966-08-15 Stotz Kontakt Gmbh Switching device, especially air contactor for high inrush current peaks
EP0219570A1 (en) * 1985-10-24 1987-04-29 Square D Company (Deutschland) Gmbh Switching device
EP0222058A1 (en) * 1985-11-05 1987-05-20 Bruno Martinetti Universal switch with integral contact tabs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701334A1 (en) * 1993-02-05 1994-08-12 Alsthom Gec Arc blow-out chimney for a contactor
CN109065411A (en) * 2018-08-28 2018-12-21 马可文 A kind of guard method of asynchronous motor
CN109065412A (en) * 2018-08-28 2018-12-21 马可文 A kind of high pressure breaker protector

Also Published As

Publication number Publication date
ATE116763T1 (en) 1995-01-15
DE69106401T2 (en) 1995-05-04
FR2658659A1 (en) 1991-08-23
FR2658659B1 (en) 1996-07-19
DE69106401D1 (en) 1995-02-16
PT96793B (en) 1998-08-31
EP0442409B1 (en) 1995-01-04
HU910491D0 (en) 1991-08-28
ES2068406T3 (en) 1995-04-16
PT96793A (en) 1993-01-29
HUT56657A (en) 1991-09-30
HU217393B (en) 2000-01-28

Similar Documents

Publication Publication Date Title
EP0847586B1 (en) High voltage hybrid circuit-breaker
EP0517620B1 (en) M.T. circuit breaker with reduced control energy
FR2580426A1 (en) LOW VOLTAGE CIRCUIT BREAKER WITH SWITCHING FUNCTION FOR CONTROL OF ELECTRIC POWER MANAGEMENT SYSTEM
FR2714520A1 (en) Electrical switch with separable contacts.
FR2664426A1 (en) SWITCH.
EP0540971B1 (en) High- or medium-voltage circuit breaker with triple motion
EP0011542B1 (en) Circuit breaker with separated main and shunt current paths
FR2669463A1 (en) PROTECTION SWITCH.
FR2707794A1 (en) Protection switch device.
EP0442409B1 (en) DC-contactor for high power
EP0053524B1 (en) Self blast electrical circuit breaker with rotating arc
EP0240397A1 (en) Self-blast electrical circuit breaker with a rotating arc
FR2685124A1 (en) PROTECTIVE SWITCHING APPARATUS SUCH AS A CIRCUIT-BREAKER.
EP0536039B1 (en) Ultra-high voltage circuit breaker
EP0768692B1 (en) Autoexpansion circuit breaker with insulating gas
EP0759629B1 (en) Circuit breaker with closing resistor and insertion device
FR2806522A1 (en) MAGNETIC TRIPPING DEVICE, ESPECIALLY FOR CIRCUIT BREAKERS, AND ELECTRICAL PROTECTION DEVICE INCLUDING SUCH A DEVICE
FR2683937A1 (en) Hybrid circuit breaker for cutting off currents with a large DC component
FR2534080A1 (en) APPARATUS FOR AUTOMATIC EARTHING OF ACCIDENTALLY LIVE STRUCTURES
EP2682970B1 (en) Switchgear apparatus comprising means for keeping the contacts closed
FR2875640A1 (en) Medium voltage vacuum circuit breaker, has fixed and mobile contacts which are closed by two pins before dielectric distance of isolating switch is not very low in order to allow current passage via terminal
FR2760126A1 (en) Resistance closure mechanism for circuit breaker
FR2745949A1 (en) ELECTROMAGNETIC ACTUATOR ELECTRIC CIRCUIT BREAKER AND CONTROL MECHANISM
FR2631735A1 (en) Device for adjusting a medium-voltage electric switch
FR2824662A1 (en) Multiphase motor thermal protection relays having two separate container forming container with sealable cover etched channels sliding with break mechanism single container held allowing different functions second container.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19920217

17Q First examination report despatched

Effective date: 19940314

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 116763

Country of ref document: AT

Date of ref document: 19950115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 69106401

Country of ref document: DE

Date of ref document: 19950216

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950217

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2068406

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20090218

Year of fee payment: 19

Ref country code: ES

Payment date: 20090219

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20090217

Year of fee payment: 19

Ref country code: DE

Payment date: 20090219

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20090217

Year of fee payment: 19

Ref country code: GB

Payment date: 20090219

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20090216

Year of fee payment: 19

Ref country code: IT

Payment date: 20090221

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20090408

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090213

Year of fee payment: 19

BERE Be: lapsed

Owner name: S.A. *GEC ALSTHOM

Effective date: 20100228

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20100901

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100228

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20101029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100301

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100901

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100228

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110225

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100211

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100212