EP1647041A2 - Differential switch provided with a test circuit - Google Patents

Differential switch provided with a test circuit

Info

Publication number
EP1647041A2
EP1647041A2 EP04767737A EP04767737A EP1647041A2 EP 1647041 A2 EP1647041 A2 EP 1647041A2 EP 04767737 A EP04767737 A EP 04767737A EP 04767737 A EP04767737 A EP 04767737A EP 1647041 A2 EP1647041 A2 EP 1647041A2
Authority
EP
European Patent Office
Prior art keywords
branch
contact
differential switch
self
switch according
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
EP04767737A
Other languages
German (de)
French (fr)
Other versions
EP1647041B1 (en
Inventor
Pierre Rés. les Hauts d'Antibes KOCH
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.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SA
Legrand SNC
Legrand France 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 Legrand SA, Legrand SNC, Legrand France SA filed Critical Legrand SA
Priority to PL04767737T priority Critical patent/PL1647041T3/en
Publication of EP1647041A2 publication Critical patent/EP1647041A2/en
Application granted granted Critical
Publication of EP1647041B1 publication Critical patent/EP1647041B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • H01H2083/045—Auxiliary switch opening testing circuit in synchronism with the main circuit

Definitions

  • the invention relates to the field of protection of electrical installations and people. It relates more particularly to a differential switch provided with a test circuit for ensuring the proper operation of the differential switch.
  • the differential switches are circuit breakers able to trigger automatically to open an electrical circuit when it has a leakage current. Indeed, in the case where, within an electrical circuit to be protected, an apparatus has a defect causing the circuit phase to be grounded, a leakage current is created in that a part of the current normally flowing in the circuit is deflected to earth. For obvious safety reasons, it is necessary, and often legally mandatory, to detect the presence of such a leakage current and cut the electrical circuit accordingly.
  • a differential switch In such a differential switch, conductors connected to the electrical circuit to be protected are surrounded by an induction coil and, when the intensity of the current flowing in a direction is different from the intensity of the current flowing in the other direction (which reveals the presence of a leakage current on the electrical circuit to be protected), an induced current is created in the coil and allows to supply an actuator which triggers the mechanism with consequently, the opening of a pair of power contacts that cut at least one pole of the circuit.
  • the differential switches generally comprise a test circuit that makes it possible to simulate the presence of a leakage current and thus to check the correct tripping of the differential switch.
  • the principle commonly used to simulate such a leakage current consists in creating, within the differential switch, a bypass circuit comprising a resistor, one of whose terminals is connected to a pole of the circuit. electrical to protect on one side of the induction coil, and the other terminal is connected to another pole of the electrical circuit to be protected on the other side of the induction coil.
  • a simulated leakage current depending on the value of the resistance, is thus created.
  • This branch circuit is kept open by a test contactor, for example of the push switch type, which is accessible from the differential switch housing for a user to implement the test function.
  • EP 0 295 167 discloses a test set for differential electrical protection apparatus.
  • the test assembly comprises a conductive blade with two branches, one of the branches providing the function of the test push switch and the other branch ensuring the self-cutting. being separated from its contact position by an element of the contact opening mechanism which is intended to open the electrical circuit to be protected.
  • the aim of the invention is to improve such a differential switch provided with a test circuit, particularly with regard to the self-cutting function.
  • a differential switch comprising: - a fixed power contact and a pivoting power contact which admits a closed position in which it is disposed against the fixed contact, and an open position in which it is at distance from the fixed contact; and - a test contactor, characterized in that it further comprises: - a self-cutting conductor branch connected to a terminal of the test contactor and extending in a direction transverse to the axis of rotation of the pivoting contact; - A self-cutting blade connected to said pivoting contact and disposed opposite the autocoupure branch so that, when the pivoting contact is in the closed position, the self-cutting blade is disposed against the self-cutting branch and, when the pivoting contact is in the open position, the chopper blade is away from the chopper branch.
  • the elements for performing the self-cutting function of such a differential switch are directly related to the elements for performing the function of opening the electrical circuit to be protected. Indeed, the self-cutting blade being directly connected to the pivoting contact and the self-cutting branch being disposed opposite the self-cutting blade, these elements can be mounted directly on the mechanism of the differential switch. It is not necessary, for example, to use the housing of the differential switch to support these elements, which makes it possible not to depend on dimensional tolerances or shape variations of an element attached to the mechanism, such as than the case.
  • the arrangement of the conductive branch extending in a direction transverse to the axis of rotation of the pivoting contact allows not only to take advantage of the pivoting of the contact to perform the self-cutting function, but also allows to take advantage of this pivoting in a manner almost independent of the position variation of the axis of rotation.
  • the axis of rotation of the pivoting contact will tend to move along a direction substantially parallel to the self-cutting branch, which will have little effect on the contact between the self-cutting blade and the self-cutting branch since this contact essentially depends on the position of the self-cutting blade with respect to said axis of rotation to which it is linked.
  • the pivoting contact further comprises a protruding spacer and adapted to lift the autocoupure branch when the pivoting contact is in the open position.
  • the spacer may be a tab of insulating material disposed transversely to the self-cutting branch. This spacer makes it possible to increase the distance between the self-cutting branch and the self-cutting blade when the pivoting contact is in the open position, which ensures better insulation between these two parts and makes it possible to be even less dependent on manufacturing tolerances and deformations of the differential switch.
  • the spacer may comprise a notch adapted to guide the self-cutting branch.
  • the spacer and the self-cutting blade are arranged face to face and on either side of the axis of rotation of the pivoting contact.
  • This arrangement allows the chopper blade and the chopper branch to cooperate with each other so that when the chopper blade moves away from the chopper branch, the spacer moves up and when the chopper blade gets closer to the branch of the autocenter, the spacer loosens it.
  • the differential switch may further comprise a first stop finger disposed in the path of the self-cutting branch and adapted to limit the lifting thereof.
  • it may also include a second stop finger disposed vis-à-vis the first stop finger and the autocoupure branch can be maintained between the first stop finger and the second stop finger.
  • the test contactor comprises: a test button admitting a rest position and an actuating position; a pusher spring connected to the autocouping branch and disposed opposite a conductive key, the pusher spring being controlled by the test button so that, when the test button is in the rest position, the spring is removed from the key and, when the test button is in the actuating position, the spring is in contact with the key.
  • the test contactor is thus produced in an economical and reliable manner.
  • the pusher spring and the chopper branch can be made in one piece, the number of elements participating in the test circuit being thereby greatly reduced.
  • the pivoting contact can be mounted on a pivoting support, said support being made of insulating material and having a projecting tongue forming the spacer.
  • the movable contact may be connected to a conductive contact spring blade which has a projecting portion forming the self-cutting blade.
  • FIG. 1 is a perspective view of an assembly comprising a handle, a fixed contact and a movable contact carrying a cutting blade, and a piece forming a pusher spring and autocoupure branch, the movable contact being in the closed position ;
  • - Figure 2 is a side view corresponding to Figure 1;
  • - Figure 3 is a view similar to Figure 1, the movable contact being in the open position;
  • FIG. 4 is a side view corresponding to FIG.
  • FIGS. 1 to 4 show some of the elements constituting the test circuit of a differential switch, these elements being seen in the position they normally occupy within the differential switch, although the rest of the mechanism has not been represented for the sake of clarity. In these figures are visible a fixed contact 1 and a movable contact
  • the movable contact 2 is controlled to move away from the fixed contact 1 (open position) in the event of an electrical fault.
  • the contacts 1, 2 are biased by an opening spring 3 so that their position at rest is the open position.
  • the movable contact 2 comprises a key member 4 intended to be positioned against a similar key member 5 belonging to the fixed contact 1, when the movable contact 2 is in its closed position.
  • the contact member 4 of the movable contact 2 is mounted in an insulating support 6 and wedged by a contact spring-blade 7, the latter also performing the function of self-cutting blade as explained below.
  • the insulating support 6 is pivotally mounted about an axis 8 to give the moving contact the degree of freedom necessary to occupy its closed positions ( Figures 1 and 2) and opening ( Figures 3 and 4).
  • the insulating support 6 further comprises a tongue 14 protruding vis-à-vis the spring-contact blade 7, these two elements 7, 14 extending in a direction transverse to the axis 8 and being arranged on the side and 8.
  • the tongue 14 comprises, on its upper part, a notch 19 provided for cooperation with a self-cutting branch 10.
  • a lever 9 intended to be accessible from the outside so that the user can manipulate it. It controls the mechanism of the differential switch and has two positions corresponding to the two positions of the movable contact 2 of FIGS. 1 and 3.
  • a single piece comprising a self-cutting branch 10 and a push spring 11 is disposed on the mechanism so that the self-cutting branch extends to the top of the insulating support 6, transversely to the axis 8.
  • the self-cutting branch 10 is further held in place between two stop fingers 12, 13 attached to a fixed part of the differential switch (not shown).
  • a pusher spring 11 formed of a helical winding and a projecting branch 15 disposed opposite a conductive button 16.
  • This conductive button 16 is intended to be connected to a terminal of the test resistor (not shown) whose other terminal is connected to a pole of the differential switch.
  • a test button 17 is furthermore provided for cooperating with the projecting limb 15.
  • the test button is intended to be kept sliding by the housing (not shown) of the differential switch in order to be able to occupy a rest position in which it does not solicit the projecting limb 15 and an actuating position in which it pushes (under the action of the user) the branch protruding against the button 16.
  • This figure 5 shows the same elements of the figures 1 to 4 with, in addition, a second pair of contacts 18 simultaneously controlled contacts 1, 2 described above, which is common for a differential switch.
  • the autocut function is thus activated, implying that even if pressure is applied to the test button 17 to make contact between the branch 15 and the key 16, the electrical continuity of the test circuit will not be established. More generally, the invention is not limited to the examples described and shown, particularly with regard to the arrangement of the conductive pad 16 and the pusher spring 11.

Landscapes

  • Push-Button Switches (AREA)
  • Breakers (AREA)
  • Keying Circuit Devices (AREA)
  • Electronic Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The switch has an automatic power cut-off conductive branch (10) that extends along a direction transversal to a rotating axle (8) of a rotating contact (2). An automatic power cut-off conductive blade (7) connected to the contact is placed relative to the branch. The blade is placed such that it is placed against and spaced apart from the branch when the contact is in closed and open positions, respectively.

Description

Interrupteur différentiel comportant un circuit de test Differential switch having a test circuit
L'invention concerne le domaine de la protection des installations électriques et des personnes. Elle concerne plus particulièrement un interrupteur différentiel muni d'un circuit de test destiné à s'assurer du bon fonctionnement de l'interrupteur différentiel. Les interrupteurs différentiels sont des dispositifs coupe-circuit aptes à se déclencher automatiquement pour ouvrir un circuit électrique lorsque celui-ci présente un courant de fuite. En effet, dans le cas où, au sein d'un circuit électrique à protéger, un appareil présente un défaut entraînant la mise à la terre de la phase du circuit, un courant de fuite est créé en ce sens qu'une partie du courant électrique circulant normalement dans le circuit est déviée vers la terre. Pour des raisons évidentes de sécurité, il est nécessaire, et souvent légalement obligatoire, de détecter la présence d'un tel courant de fuite et de couper le circuit électrique en conséquence. Cette tâche est avantageusement remplie par un interrupteur différentiel Généralement, dans un tel interrupteur différentiel, des conducteurs reliés au circuit électrique à protéger sont entourés par une bobine d'induction et, lorsque l'intensité du courant circulant dans un sens est différente de l'intensité du courant circulant dans l'autre sens (ce qui révèle la présence d'un courant de fuite sur le circuit électrique à protéger), un courant induit est créé dans la bobine et permet d'alimenter un actionneur qui déclenche le mécanisme avec pour conséquence l'ouverture d'une paire de contacts de puissance qui sectionnent au moins un pôle du circuit. Par ailleurs, les interrupteurs différentiels comportent généralement un circuit de test qui permet de simuler la présence d'un courant de fuite et de vérifier ainsi le bon déclenchement de l'interrupteur différentiel. Le principe couramment employé pour simuler un tel courant de fuite consiste à créer au sein de l'interrupteur différentiel un circuit de dérivation comportant une résistance dont l'une des bornes est reliée à un pôle du circuit électrique à protéger d'un côté de la bobine d'induction, et dont l'autre borne est reliée à un autre pôle du circuit électrique à protéger, de l'autre côté de la bobine d'induction. Un courant de fuite simulé, dépendant de la valeur de la résistance, est ainsi créé. Ce circuit de dérivation est maintenu ouvert par un contacteur de test, par exemple du type interrupteur à poussoir, qui est accessible depuis le boîtier de l'interrupteur différentiel pour qu'un utilisateur puisse mettre en œuvre la fonction test. De plus, pour plus de sécurité, il est avantageux de prévoir un mécanisme visant à inhiber l'action du contacteur de test lorsque l'interrupteur différentiel a été déclenché. En effet, une pression sur le contacteur de test alors que l'interrupteur différentiel est déclenché conduit à relier les bornes des appareils du circuit électrique à protéger aux bornes de la résistance de test, ce qui présente un danger notamment si ces appareils peuvent emmagasiner de l'énergie comme c'est le cas par exemple d'un téléviseur. Une telle inhibition de l'action du circuit de test est couramment dénommée "autocoupure". On connaît du document EP 0 165 008 un tel dispositif de test dans lequel l'inhibition de l'interrupteur poussoir de test est réalisée par un blocage mécanique de ce poussoir, ce blocage intervenant lorsque l'interrupteur différentiel a été déclenché. Par ailleurs, le document EP 0 456 586 décrit un circuit de test destiné à un déclencheur différentiel et comportant différents ressorts, l'un de ces ressorts coopérant avec une pièce de transmission du mécanisme de commande du déclencheur de sorte à ouvrir le circuit de test lorsque le déclencheur différentiel a été actionné. De même, le document EP 0 295 167 décrit un ensemble de test pour appareil électrique différentiel de protection. L'ensemble de test comporte une lame conductrice à deux branches, l'une des branches assurant la fonction de l'interrupteur poussoir de test et l'autre branche assurant l'autocoupure en étant écartée de sa position de contact par un élément du mécanisme d'ouverture de contacts qui est destiné à ouvrir le circuit électrique à protéger. L'invention vise à améliorer un tel interrupteur différentiel muni d'un circuit de test notamment en ce qui concerne la fonction d'autocoupure. Elle propose à cet effet un interrupteur différentiel comportant : - un contact fixe de puissance et un contact pivotant de puissance qui admet une position de fermeture dans laquelle il est disposé contre le contact fixe, et une position d'ouverture dans laquelle il est à l'écart du contact fixe ; et - un contacteur de test, caractérisé en ce qu'il comporte en outre : - une branche conductrice d'autocoupure reliée à une borne du contacteur de test et s'étendant selon une direction transversale à l'axe de rotation du contact pivotant ; - une lame conductrice d'autocoupure reliée audit contact pivotant et disposée en regard de la branche d'autocoupure de sorte que, lorsque le contact pivotant est en position de fermeture, la lame d'autocoupure est disposée contre la branche d'autocoupure et, lorsque le contact pivotant est en position d'ouverture, la lame d'autocoupure est à l'écart de la branche d'autocoupure. Les éléments permettant de réaliser la fonction d'autocoupure d'un tel interrupteur différentiel sont directement liés aux éléments permettant de réaliser la fonction d'ouverture du circuit électrique à protéger. En effet, la lame d'autocoupure étant directement reliée au contact pivotant et la branche d'autocoupure étant disposée en regard de la lame d'autocoupure, ces éléments peuvent être montés directement sur le mécanisme de l'interrupteur différentiel. Il n'est pas nécessaire, par exemple, de faire appel au boîtier de l'interrupteur différentiel pour soutenir ces éléments, ce qui permet de ne pas dépendre des tolérances dimensionnelles ou des variations de forme d'un élément rapporté sur le mécanisme, tel que le boîtier. Par ailleurs, la disposition de la branche conductrice s'étendant selon une direction transversale à l'axe de rotation du contact pivotant permet non seulement de mettre à profit le pivotement du contact pour réaliser la fonction d'autocoupure, mais permet aussi de mettre à profit ce pivotement d'une manière quasi indépendante de la variation de position de l'axe de rotation. Lorsque les éléments constituant le mécanisme de l'interrupteur différentiel auront tendance à se déformer, par exemple sous l'effet du fluage ou sous l'effet de l'humidité, l'axe de rotation du contact pivotant tendra à se déplacer le long d'une direction sensiblement parallèle à la branche d'autocoupure, ce qui influera peu sur le contact entre la lame d'autocoupure et la branche d'autocoupure puisque ce contact dépend essentiellement de la position de la lame d'autocoupure par rapport audit axe de rotation auquel elle est liée. Selon une caractéristique préférée, le contact pivotant comporte en outre une pièce d'écartement saillante et adaptée à soulever la branche d'autocoupure lorsque le contact pivotant est en position ouverte. La pièce d'écartement peut être une languette de matériau isolant disposée transversalement à la branche d'autocoupure. Cette pièce d'écartement permet d'augmenter la distance entre la branche d'autocoupure et la lame d'autocoupure lorsque le contact pivotant est en position d'ouverture, ce qui assure une meilleure isolation entre ces deux pièces et permet d'être encore moins dépendant des tolérances de fabrication et des déformations de l'interrupteur différentiel. Pour assurer un bon positionnement de la branche d'autocoupure, la pièce d'écartement peut comporter une encoche adaptée à guider la branche d'autocoupure. De préférence, la pièce d'écartement et la lame d'autocoupure sont disposées face à face et de part et d'autre de l'axe de rotation du contact pivotant. Cette disposition permet à la lame d'autocoupure et la branche d'autocoupure de coopérer mutuellement de telle sorte que, lorsque la lame d'autocoupure s'éloigne de la branche d'autocoupure, la pièce d'écartement soulève celle-ci et, lorsque la lame d'autocoupure se rapproche de la branche d'autocoupure, la pièce d'écartement relâche celle-ci. Les effets de ces deux éléments se cumulent ainsi avantageusement. Par ailleurs, l'interrupteur différentiel peut comporter en outre un premier doigt d'arrêt disposé sur le trajet de la branche d'autocoupure et adapté à limiter le soulèvement de celle-ci. De même, il peut également comporter un deuxième doigt d'arrêt disposé en vis-à-vis du premier doigt d'arrêt et la branche d'autocoupure peut être maintenue entre le premier doigt d'arrêt et le deuxième doigt d'arrêt. Ces doigts permettent un maintien efficace de la branche d'autocoupure pour assurer un bon contact électrique lorsque la lame d'autocoupure vient se placer contre la branche d'autocoupure. Selon une caractéristique préférée, le contacteur de test comporte : - un bouton de test admettant une position de repos et une position d'actionnement ; - un ressort de poussoir relié à la branche d'autocoupure et disposé en vis-à-vis d'une touche conductrice le ressort de poussoir étant commandé par le bouton de test de sorte que, lorsque le bouton test est en position de repos, le ressort est écarté de la touche et, lorsque le bouton test est en position d'actionnement, le ressort est en contact avec la touche. Le contacteur de test est ainsi réalisé d'une manière économique et fiable. Le ressort de poussoir et la branche d'autocoupure peuvent être faits d'une seule pièce, le nombre d'éléments participant au circuit de test étant de cette manière considérablement réduit. Pour des raisons de commodité de réalisation, le contact pivotant peut être monté sur un support pivotant, ledit support étant en matériau isolant et comportant une languette en saillie formant la pièce d'écartement. De même, le contact mobile peut être relié à une lame-ressort de contact conductrice qui comporte une portion en saillie formant la lame d'autocoupure. D'autres caractéristiques et avantages de l'invention apparaissent à la lumière de la description qui va suivre d'un mode de réalisation préféré donné à titre d'exemple non limitatif, description faite en référence aux dessins annexés dans lesquels : - la figure 1 est une vue en perspective d'un ensemble comportant une manette, un contact fixe et un contact mobile portant une lame d'autocoupure, ainsi qu'une pièce formant ressort de poussoir et branche d'autocoupure, le contact mobile étant en position de fermeture ; - la figure 2 est une vue de côté correspondant à la figure 1 ; - la figure 3 est une vue similaire à la figure 1 , le contact mobile étant en position d'ouverture ; - la figure 4 est une vue de côté correspondant à la figure 3 ; - la figure 5 est une vue correspondant à une vue de gauche de la figure 4, cette vue comportant des éléments supplémentaires de l'interrupteur différentiel : une deuxième paire de contacts et un bouton de test commandant le ressort de contact. Sur les figures 1 à 4 sont représentés certains des éléments constituant le circuit de test d'un interrupteur différentiel, ces éléments étant vus dans la position qu'ils occupent normalement au sein de l'interrupteur différentiel, bien que le reste du mécanisme n'ait pas été représenté pour des raisons de clarté. Sur ces figures sont visibles un contact fixe 1 et un contact mobileThe invention relates to the field of protection of electrical installations and people. It relates more particularly to a differential switch provided with a test circuit for ensuring the proper operation of the differential switch. The differential switches are circuit breakers able to trigger automatically to open an electrical circuit when it has a leakage current. Indeed, in the case where, within an electrical circuit to be protected, an apparatus has a defect causing the circuit phase to be grounded, a leakage current is created in that a part of the current normally flowing in the circuit is deflected to earth. For obvious safety reasons, it is necessary, and often legally mandatory, to detect the presence of such a leakage current and cut the electrical circuit accordingly. This task is advantageously performed by a differential switch Generally, in such a differential switch, conductors connected to the electrical circuit to be protected are surrounded by an induction coil and, when the intensity of the current flowing in a direction is different from the intensity of the current flowing in the other direction (which reveals the presence of a leakage current on the electrical circuit to be protected), an induced current is created in the coil and allows to supply an actuator which triggers the mechanism with consequently, the opening of a pair of power contacts that cut at least one pole of the circuit. In addition, the differential switches generally comprise a test circuit that makes it possible to simulate the presence of a leakage current and thus to check the correct tripping of the differential switch. The principle commonly used to simulate such a leakage current consists in creating, within the differential switch, a bypass circuit comprising a resistor, one of whose terminals is connected to a pole of the circuit. electrical to protect on one side of the induction coil, and the other terminal is connected to another pole of the electrical circuit to be protected on the other side of the induction coil. A simulated leakage current, depending on the value of the resistance, is thus created. This branch circuit is kept open by a test contactor, for example of the push switch type, which is accessible from the differential switch housing for a user to implement the test function. In addition, for greater safety, it is advantageous to provide a mechanism for inhibiting the action of the test contactor when the differential switch has been triggered. Indeed, a pressure on the test contactor while the differential switch is triggered leads to connect the terminals of the devices of the electrical circuit to be protected across the test resistor, which presents a danger especially if these devices can store energy as is the case for example of a TV. Such an inhibition of the action of the test circuit is commonly referred to as "self-cutting". Document EP 0 165 008 discloses such a test device in which the inhibition of the test pusher switch is achieved by a mechanical blocking of this pusher, this blocking occurring when the differential switch has been tripped. Furthermore, the document EP 0 456 586 describes a test circuit intended for a differential release and comprising different springs, one of these springs cooperating with a transmission part of the trigger control mechanism so as to open the test circuit. when the differential release has been actuated. Similarly, EP 0 295 167 discloses a test set for differential electrical protection apparatus. The test assembly comprises a conductive blade with two branches, one of the branches providing the function of the test push switch and the other branch ensuring the self-cutting. being separated from its contact position by an element of the contact opening mechanism which is intended to open the electrical circuit to be protected. The aim of the invention is to improve such a differential switch provided with a test circuit, particularly with regard to the self-cutting function. It proposes for this purpose a differential switch comprising: - a fixed power contact and a pivoting power contact which admits a closed position in which it is disposed against the fixed contact, and an open position in which it is at distance from the fixed contact; and - a test contactor, characterized in that it further comprises: - a self-cutting conductor branch connected to a terminal of the test contactor and extending in a direction transverse to the axis of rotation of the pivoting contact; - A self-cutting blade connected to said pivoting contact and disposed opposite the autocoupure branch so that, when the pivoting contact is in the closed position, the self-cutting blade is disposed against the self-cutting branch and, when the pivoting contact is in the open position, the chopper blade is away from the chopper branch. The elements for performing the self-cutting function of such a differential switch are directly related to the elements for performing the function of opening the electrical circuit to be protected. Indeed, the self-cutting blade being directly connected to the pivoting contact and the self-cutting branch being disposed opposite the self-cutting blade, these elements can be mounted directly on the mechanism of the differential switch. It is not necessary, for example, to use the housing of the differential switch to support these elements, which makes it possible not to depend on dimensional tolerances or shape variations of an element attached to the mechanism, such as than the case. Furthermore, the arrangement of the conductive branch extending in a direction transverse to the axis of rotation of the pivoting contact allows not only to take advantage of the pivoting of the contact to perform the self-cutting function, but also allows to take advantage of this pivoting in a manner almost independent of the position variation of the axis of rotation. When the elements constituting the mechanism of the differential switch will tend to deform, for example under the effect of creep or under the effect of moisture, the axis of rotation of the pivoting contact will tend to move along a direction substantially parallel to the self-cutting branch, which will have little effect on the contact between the self-cutting blade and the self-cutting branch since this contact essentially depends on the position of the self-cutting blade with respect to said axis of rotation to which it is linked. According to a preferred feature, the pivoting contact further comprises a protruding spacer and adapted to lift the autocoupure branch when the pivoting contact is in the open position. The spacer may be a tab of insulating material disposed transversely to the self-cutting branch. This spacer makes it possible to increase the distance between the self-cutting branch and the self-cutting blade when the pivoting contact is in the open position, which ensures better insulation between these two parts and makes it possible to be even less dependent on manufacturing tolerances and deformations of the differential switch. To ensure proper positioning of the self-cutting branch, the spacer may comprise a notch adapted to guide the self-cutting branch. Preferably, the spacer and the self-cutting blade are arranged face to face and on either side of the axis of rotation of the pivoting contact. This arrangement allows the chopper blade and the chopper branch to cooperate with each other so that when the chopper blade moves away from the chopper branch, the spacer moves up and when the chopper blade gets closer to the branch of the autocenter, the spacer loosens it. The effects of these two elements thus accumulate advantageously. Furthermore, the differential switch may further comprise a first stop finger disposed in the path of the self-cutting branch and adapted to limit the lifting thereof. Similarly, it may also include a second stop finger disposed vis-à-vis the first stop finger and the autocoupure branch can be maintained between the first stop finger and the second stop finger. These fingers allow effective maintenance of the autocoupure branch to ensure good electrical contact when the self-cutting blade is placed against the self-cutting branch. According to a preferred characteristic, the test contactor comprises: a test button admitting a rest position and an actuating position; a pusher spring connected to the autocouping branch and disposed opposite a conductive key, the pusher spring being controlled by the test button so that, when the test button is in the rest position, the spring is removed from the key and, when the test button is in the actuating position, the spring is in contact with the key. The test contactor is thus produced in an economical and reliable manner. The pusher spring and the chopper branch can be made in one piece, the number of elements participating in the test circuit being thereby greatly reduced. For the sake of convenience, the pivoting contact can be mounted on a pivoting support, said support being made of insulating material and having a projecting tongue forming the spacer. Similarly, the movable contact may be connected to a conductive contact spring blade which has a projecting portion forming the self-cutting blade. Other features and advantages of the invention appear in the light of the description which follows of a preferred embodiment given by way of non-limiting example, description made with reference to the accompanying drawings in which: - Figure 1 is a perspective view of an assembly comprising a handle, a fixed contact and a movable contact carrying a cutting blade, and a piece forming a pusher spring and autocoupure branch, the movable contact being in the closed position ; - Figure 2 is a side view corresponding to Figure 1; - Figure 3 is a view similar to Figure 1, the movable contact being in the open position; FIG. 4 is a side view corresponding to FIG. 3; - Figure 5 is a view corresponding to a left view of Figure 4, this view comprising additional elements of the differential switch: a second pair of contacts and a test button controlling the contact spring. FIGS. 1 to 4 show some of the elements constituting the test circuit of a differential switch, these elements being seen in the position they normally occupy within the differential switch, although the rest of the mechanism has not been represented for the sake of clarity. In these figures are visible a fixed contact 1 and a movable contact
2, ces pièces étant destinées à ouvrir ou fermer le circuit électrique à protéger selon la commande de l'interrupteur différentiel. Le fonctionnement d'un interrupteur différentiel étant bien connu de l'homme du métier, il ne sera pas décrit en détail ici, de même que les éléments correspondants n'ont pas été représentés. Notons simplement que le contact mobile 2 est commandé pour s'écarter du contact fixe 1 (position d'ouverture) en cas de défaut électrique. Les contacts 1 , 2 sont sollicités par un ressort d'ouverture 3 pour que leur position au repos soit la position d'ouverture. Le contact mobile 2 comporte un organe de touche 4 destiné à venir se positionner contre un organe de touche 5 similaire appartenant au contact fixe 1 , lorsque le contact mobile 2 est dans sa position de fermeture. L'organe de touche 4 du contact mobile 2 est monté dans un support isolant 6 et calé par une lame-ressort de contact 7, cette dernière assurant également la fonction de lame d'autocoupure comme exposé plus loin. Le support isolant 6 est monté pivotant autour d'un axe 8 pour donner au contact mobile le degré de liberté nécessaire pour occuper ses positions de fermeture (figures 1 et 2) et d'ouverture (figures 3 et 4). Le support isolant 6 comporte en outre une languette 14 saillante en vis-à-vis de la lame-ressort de contact 7, ces deux éléments 7, 14 s'étendant selon une direction transversale à l'axe 8 et étant disposés de part et d'autre de l'axe 8. La languette 14 comporte, sur sa partie supérieure, une encoche 19 prévue pour la coopération avec une branche d'autocoupure 10. Sur les figures 1 à 5 est également représentée une manette 9 destinée à être accessible depuis l'extérieur pour que l'utilisateur puisse la manipuler. Elle commande le mécanisme de l'interrupteur différentiel et comporte deux positions correspondant aux deux positions du contact mobile 2 des figures 1 et 3. Une pièce unique comportant une branche d'autocoupure 10 et un ressort de poussoir 11 est disposée sur le mécanisme de sorte que la branche d'autocoupure s'étende jusqu'au-dessus du support isolant 6, transversalement à l'axe 8. La branche d'autocoupure 10 est de plus maintenue en place entre deux doigts d'arrêt 12, 13 rattachés à une partie fixe de l'interrupteur différentiel (non représenté). Par ailleurs, à cette branche d'autocoupure 10 est rattaché un ressort de poussoir 11 formé d'un enroulement hélicoïdal et d'une branche saillante 15 disposée en regard d'une touche conductrice 16. Cette touche conductrice 16 est destinée à être reliée à une borne de la résistance de test (non représentée) dont l'autre borne est reliée à un pôle de l'interrupteur différentiel. En référence à la figure 5, un bouton de test 17 est de plus prévu pour coopérer avec la branche saillante 15. Le bouton de test est destiné à être maintenu coulissant par le boîtier (non représenté) de l'interrupteur différentiel pour pouvoir occuper une position de repos dans laquelle il ne sollicite pas la branche saillante 15 et une position d'actionnement dans laquelle il pousse (sous l'action de l'utilisateur) la branche saillante contre la touche 16. Cette figure 5 reprend les mêmes éléments des figures 1 à 4 avec, en plus, une deuxième paire de contacts 18 commandés simultanément aux contacts 1 , 2 décrits précédemment, ce qui est courant pour un interrupteur différentiel. Dans la position des figures 1 et 2, l'interrupteur différentiel est en position enclenchée, le contact mobile 2 étant en position de fermeture. Ainsi, de par la disposition de la languette 14 et de la lame d'autocoupure 7, la languette 14 est à l'écart de la branche d'autocoupure 10 tandis que la lame d'autcoupure 7 est positionnée contre la branche d'autocoupure 10. Le maintien de cette dernière par les doigts d'arrêt 12, 13 permet de mettre à profit son élasticité pour garantir un bon contact électrique avec la lame d'autocoupure 7. Sur ces figures 1 et 2, la branche saillante 15 est maintenue contre la touche conductrice 16, ce qui correspond à une action de l'utilisateur sur le bouton de test 17, bien que ce dernier n'ait pas été représenté sur ces figures pour des raisons de clarté. Dans cette configuration, une continuité électrique est assurée entre le contact fixe 1 (et donc l'un des pôles de l'interrupteur différentiel) et la touche conductrice 16 (et donc un autre pôle de l'interrupteur différentiel), par l'intermédiaire de la résistance de test. La fonction d'autocoupure n'est donc pas activée et l'action sur le bouton de test 17 met effectivement en œuvre la fonction test. Dans le cas des figures 3 et 4, en revanche, l'interrupteur différentiel est en position déclenchée, le contact mobile 2 étant par conséquent en position d'ouverture. La languette 14 est alors maintenue contre la branche d'autocoupure 10 et la soulève, tandis que la lame d'autocoupure 7 en est à l'écart. La distance séparant la lame d'autocoupure 7 de la branche d'autocoupure 10 dépend de la distance entre la languette 14 (et par conséquent entre l'axe 8) et les doigts d'arrêt 12, 13. La fonction d'autocoupure est ainsi activée impliquant que même en cas de pression sur le bouton de test 17 pour établir le contact entre la branche 15 et la touche 16, la continuité électrique du circuit de test ne sera pas établie. Plus généralement, l'invention ne se limite pas aux exemples décrits et représentés, notamment en ce qui concerne l'agencement de la touche conductrice 16 et du ressort de poussoir 11. 2, these parts being intended to open or close the electrical circuit to be protected according to the control of the differential switch. The operation of a differential switch being well known to those skilled in the art, it will not be described in detail here, just as the corresponding elements have not been shown. Note simply that the movable contact 2 is controlled to move away from the fixed contact 1 (open position) in the event of an electrical fault. The contacts 1, 2 are biased by an opening spring 3 so that their position at rest is the open position. The movable contact 2 comprises a key member 4 intended to be positioned against a similar key member 5 belonging to the fixed contact 1, when the movable contact 2 is in its closed position. The contact member 4 of the movable contact 2 is mounted in an insulating support 6 and wedged by a contact spring-blade 7, the latter also performing the function of self-cutting blade as explained below. The insulating support 6 is pivotally mounted about an axis 8 to give the moving contact the degree of freedom necessary to occupy its closed positions (Figures 1 and 2) and opening (Figures 3 and 4). The insulating support 6 further comprises a tongue 14 protruding vis-à-vis the spring-contact blade 7, these two elements 7, 14 extending in a direction transverse to the axis 8 and being arranged on the side and 8. The tongue 14 comprises, on its upper part, a notch 19 provided for cooperation with a self-cutting branch 10. In FIGS. 1 to 5 is also shown a lever 9 intended to be accessible from the outside so that the user can manipulate it. It controls the mechanism of the differential switch and has two positions corresponding to the two positions of the movable contact 2 of FIGS. 1 and 3. A single piece comprising a self-cutting branch 10 and a push spring 11 is disposed on the mechanism so that the self-cutting branch extends to the top of the insulating support 6, transversely to the axis 8. The self-cutting branch 10 is further held in place between two stop fingers 12, 13 attached to a fixed part of the differential switch (not shown). Furthermore, to this autocoupure branch 10 is attached a pusher spring 11 formed of a helical winding and a projecting branch 15 disposed opposite a conductive button 16. This conductive button 16 is intended to be connected to a terminal of the test resistor (not shown) whose other terminal is connected to a pole of the differential switch. With reference to FIG. 5, a test button 17 is furthermore provided for cooperating with the projecting limb 15. The test button is intended to be kept sliding by the housing (not shown) of the differential switch in order to be able to occupy a rest position in which it does not solicit the projecting limb 15 and an actuating position in which it pushes (under the action of the user) the branch protruding against the button 16. This figure 5 shows the same elements of the figures 1 to 4 with, in addition, a second pair of contacts 18 simultaneously controlled contacts 1, 2 described above, which is common for a differential switch. In the position of Figures 1 and 2, the differential switch is in the engaged position, the movable contact 2 being in the closed position. Thus, by the arrangement of the tongue 14 and the cut-off blade 7, the tongue 14 is away from the autocoupure branch 10 while the cutter blade 7 is positioned against the autocoupure branch 10. The holding of the latter by the stop fingers 12, 13 allows to take advantage of its elasticity to ensure good electrical contact with the self-cutting blade 7. In these Figures 1 and 2, the projecting leg 15 is maintained against the conductive button 16, which corresponds to a user action on the test button 17, although the latter was not shown in these figures for the sake of clarity. In this configuration, an electrical continuity is ensured between the fixed contact 1 (and therefore one of the poles of the differential switch) and the conductive button 16 (and therefore another pole of the differential switch), via test resistance. The autocoupuration function is therefore not activated and the action on the test button 17 effectively implements the test function. In the case of Figures 3 and 4, however, the differential switch is in the tripped position, the movable contact 2 is therefore in the open position. The tongue 14 is then held against the autocoupure branch 10 and raises it, while the autocutter blade 7 is away. The distance between the chopper blade 7 and the chopper branch 10 depends on the distance between the tongue 14 (and consequently between the axis 8) and the stop fingers 12, 13. The autocut function is thus activated, implying that even if pressure is applied to the test button 17 to make contact between the branch 15 and the key 16, the electrical continuity of the test circuit will not be established. More generally, the invention is not limited to the examples described and shown, particularly with regard to the arrangement of the conductive pad 16 and the pusher spring 11.

Claims

REVENDICATIONS
1. Interrupteur différentiel comportant : - un contact fixe de puissance (1 ) et un contact pivotant de puissance (2) qui admet une position de fermeture dans laquelle il est disposé contre le contact fixe (1 ), et une position d'ouverture dans laquelle il est à l'écart du contact fixe (1 ) ; et - un contacteur de test (15, 16, 17), caractérisé en ce qu'il comporte en outre : - une branche conductrice d'autocoupure (10) reliée à une borne du contacteur de test (15, 16, 17) et s'étendant selon une direction transversale à l'axe de rotation (8) du contact pivotant (2) ; - une lame conductrice d'autocoupure (7) reliée audit contact pivotant (2) et disposée en regard de la branche d'autocoupure (10) de sorte que, lorsque le contact pivotant (2) est en position de fermeture, la lame d'autocoupure (7) est disposée contre la branche d'autocoupure (10) et, lorsque le contact pivotant (2) est en position d'ouverture, la lame d'autocoupure (7) est à l'écart de la branche d'autocoupure (10). 1. Differential switch comprising: - a fixed power contact (1) and a power pivoting contact (2) which has a closed position in which it is disposed against the fixed contact (1), and an open position in which is away from the fixed contact (1); and - a test contactor (15, 16, 17), characterized in that it further comprises: - a self-cutting conductor branch (10) connected to a terminal of the test contactor (15, 16, 17) and extending in a direction transverse to the axis of rotation (8) of the pivoting contact (2); a conductive cut-off blade (7) connected to said pivoting contact (2) and arranged facing the autocouping branch (10) so that, when the pivoting contact (2) is in the closed position, the blade cut-off device (7) is arranged against the self-cutting branch (10) and, when the pivoting contact (2) is in the open position, the self-cutting blade (7) is away from the branch of autocoupure (10).
2. Interrupteur différentiel selon la revendication 1 , caractérisé en ce que le contact pivotant (2) comporte en outre une pièce d'écartement (14) saillante et adaptée à soulever la branche d'autocoupure (10) lorsque le contact pivotant (2) est en position ouverte. 2. Differential switch according to claim 1, characterized in that the pivoting contact (2) further comprises a spacing piece (14) projecting and adapted to lift the self-cutting branch (10) when the pivoting contact (2). is in the open position.
3. Interrupteur différentiel selon la revendication 2, caractérisé en ce que la pièce d'écartement (14) est une languette de matériau isolant disposée transversalement à la branche d'autocoupure (10). 3. Differential switch according to claim 2, characterized in that the spacer (14) is a tab of insulating material disposed transversely to the autocoupure branch (10).
4. Interrupteur différentiel selon la revendication 3, caractérisé en ce que la pièce d'écartement (14) comporte une encoche (19) adaptée à guider la branche d'autocoupure (10). 4. Differential switch according to claim 3, characterized in that the spacer (14) has a notch (19) adapted to guide the autocoupure branch (10).
5. Interrupteur différentiel selon l'une des revendications 2 à 4, caractérisé en ce que la pièce d'écartement (14) et la lame d'autocoupure (7) sont disposées face à face et de part et d'autre de l'axe de rotation (8) du contact pivotant (2). 5. Differential switch according to one of claims 2 to 4, characterized in that the spacer (14) and the self-cutting blade (7) are arranged face to face and on both sides of the axis of rotation (8) of the pivoting contact (2).
6. Interrupteur différentiel selon l'une des revendications 1 à 5, caractérisé en ce qu'il comporte en outre un premier doigt d'arrêt (12) disposé sur le trajet de la branche d'autocoupure (10) et adapté à limiter le soulèvement de celle-ci. 6. Differential switch according to one of claims 1 to 5, characterized in that it further comprises a first stop finger (12) disposed in the path of the autocoupure branch (10) and adapted to limit the uprising of it.
7. Interrupteur différentiel selon la revendication 6, caractérisé en ce qu'il comporte en outre un deuxième doigt d'arrêt (13) disposé en vis-à-vis du premier doigt d'arrêt (12) et en ce que la branche d'autocoupure (10) est maintenue entre le premier doigt d'arrêt (12) et le deuxième doigt d'arrêt (13). 7. Differential switch according to claim 6, characterized in that it further comprises a second stop finger (13) arranged vis-à-vis the first stop finger (12) and in that the branch d cut-off (10) is maintained between the first stop finger (12) and the second stop finger (13).
8. Interrupteur différentiel selon l'une des revendications 1 à 7, caractérisé en ce que le contacteur de test comporte : - un bouton de test (17) admettant une position de repos et une position d'actionnement ; - un ressort de poussoir (11 , 15) relié à la branche d'autocoupure (10) et disposé en vis-à-vis d'une touche conductrice (16) le ressort de poussoir (11 , 15) étant commandé par le bouton de test (17) de sorte que, lorsque le bouton test (17) est en position de repos, le ressort (11 , 15) est écarté de la touche (16) et, lorsque le bouton test (17) est en position d'actionnement, le ressort (11 , 15) est en contact avec la touche (16). 8. Differential switch according to one of claims 1 to 7, characterized in that the test switch comprises: - a test button (17) admitting a rest position and an actuating position; - A push spring (11, 15) connected to the self-cutting branch (10) and disposed opposite a conductive button (16) the push spring (11, 15) being controlled by the button test device (17) so that when the test button (17) is in the rest position, the spring (11, 15) is moved away from the button (16) and, when the test button (17) is in position d actuation, the spring (11, 15) is in contact with the key (16).
9. Interrupteur différentiel selon la revendication 8, caractérisé en ce que le ressort de poussoir (11 , 15) et la branche d'autocoupure (10) sont faits d'une seule pièce. 9. Differential switch according to claim 8, characterized in that the push spring (11, 15) and the self-cutting branch (10) are made in one piece.
10. Interrupteur différentiel selon l'une des revendications 1 à 9, caractérisé en ce que le contact pivotant (2) est monté sur un support pivotant (6), ledit support (6) étant en matériau isolant et comportant une languette (14) en saillie formant la pièce d'écartement. 10. Differential switch according to one of claims 1 to 9, characterized in that the pivoting contact (2) is mounted on a pivoting support (6), said support (6) being made of insulating material and having a tongue (14). protruding forming the spacer.
11. Interrupteur différentiel selon l'une des revendications 1 à 10, caractérisé en ce que le contact mobile (2) est relié à une lame-ressort (7) de contact conductrice qui comporte une portion en saillie formant la lame d'autocoupure. 11. Differential switch according to one of claims 1 to 10, characterized in that the movable contact (2) is connected to a spring blade (7) of conductive contact which comprises a projecting portion forming the cutter blade.
EP04767737A 2003-07-21 2004-07-20 Differential switch provided with a test circuit Not-in-force EP1647041B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04767737T PL1647041T3 (en) 2003-07-21 2004-07-20 Differential switch provided with a test circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0308867A FR2858108B1 (en) 2003-07-21 2003-07-21 DIFFERENTIAL SWITCH COMPRISING A TEST CIRCUIT
PCT/FR2004/001919 WO2005010905A2 (en) 2003-07-21 2004-07-20 Differential switch provided with a test circuit

Publications (2)

Publication Number Publication Date
EP1647041A2 true EP1647041A2 (en) 2006-04-19
EP1647041B1 EP1647041B1 (en) 2008-09-10

Family

ID=33560964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04767737A Not-in-force EP1647041B1 (en) 2003-07-21 2004-07-20 Differential switch provided with a test circuit

Country Status (10)

Country Link
EP (1) EP1647041B1 (en)
CN (1) CN100470706C (en)
AT (1) ATE408233T1 (en)
BR (1) BRPI0412068A (en)
DE (1) DE602004016518D1 (en)
ES (1) ES2314441T3 (en)
FR (1) FR2858108B1 (en)
PL (1) PL1647041T3 (en)
RU (1) RU2346351C2 (en)
WO (1) WO2005010905A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105510818B (en) * 2015-12-30 2019-02-05 三信国际电器上海有限公司 Breaker and its experimental rig and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1992095U (en) * 1968-04-05 1968-08-22 Siemens Aktiengesellschaft, 1000 Berlin und 8000 München Residual current circuit breaker with a test device to be actuated by a test button
BE867767A (en) * 1977-04-14 1978-10-02 Ave Belli Andrea HIGH SENSITIVITY DIFFERENTIAL SWITCH
DE8702467U1 (en) * 1987-02-18 1987-04-02 Brown, Boveri & Cie Ag, 6800 Mannheim, De
FR2616585A1 (en) * 1987-06-11 1988-12-16 Hager Electro TEST DEVICE FOR A DIFFERENTIAL PROTECTIVE ELECTRICAL APPARATUS INCORPORATING THIS DEVICE, IN PARTICULAR FOR A DIFFERENTIAL CIRCUIT BREAKER

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005010905A2 *

Also Published As

Publication number Publication date
CN100470706C (en) 2009-03-18
ATE408233T1 (en) 2008-09-15
FR2858108A1 (en) 2005-01-28
RU2006105204A (en) 2006-06-27
BRPI0412068A (en) 2006-11-21
WO2005010905A3 (en) 2005-03-24
EP1647041B1 (en) 2008-09-10
FR2858108B1 (en) 2006-01-06
RU2346351C2 (en) 2009-02-10
WO2005010905A2 (en) 2005-02-03
ES2314441T3 (en) 2009-03-16
PL1647041T3 (en) 2009-03-31
CN1826677A (en) 2006-08-30
DE602004016518D1 (en) 2008-10-23

Similar Documents

Publication Publication Date Title
EP0962952B1 (en) Electric power cut-off device comprising a differential release device and a circuit breaker equiped with such a device
FR2639760A1 (en) MODULAR CIRCUIT BREAKER EQUIPPED WITH AN AUXILIARY TRIP UNIT WITH INDEPENDENT OR AUTOMATIC RESET
EP0366519A1 (en) Security device for a switching apparatus made by the assembly of several removable modular elements
FR2714520A1 (en) Electrical switch with separable contacts.
FR2969366A1 (en) ARM CUT SCREEN CUTTING DEVICE
EP1901320A1 (en) Contact device for an electrical apparatus and electrical apparatus provided with such a device
FR2817078A1 (en) Circuit breaker/differential circuit breaker modular protection apparatus remote command unit having driver reengaging apparatus and second driver switching apparatus electronic circuit controlled.
EP1647041B1 (en) Differential switch provided with a test circuit
EP1650780B1 (en) Electromechanical trigger and an electronical safety appliance with the same
EP1274109B1 (en) Circuit breaker and it's opperating mechanism
EP0901142B1 (en) Device for indicating an electrical fault in a switching device, like a differential circuit breaker
EP0310469B1 (en) Protective switch with a screen for cutting the arc
EP2743958B1 (en) Electric current breaking apparatus, in particular a coupling breaker
EP1505619B1 (en) Ameliorated lock mechanism for circuit breakers and circuit breaker incorporating such lock
FR2577712A1 (en) PROTECTION SWITCH
EP0054499B1 (en) Circuit breaker with neutral-line disconnection
EP2192605A1 (en) Device for disconnecting an electric circuit and electricity distribution box comprising such a disconnecting device
EP2743959A1 (en) Thermal trip device and current breaking apparatus comprising one such device
EP3309813A1 (en) Differential electric switching device comprising a differential function test device
EP0218497B1 (en) Protective circuit breaker with a resilient link
FR2818436A1 (en) Controlled electrical power switch includes cut-out with operating coil and provision for manual pushbutton operation
FR2616585A1 (en) TEST DEVICE FOR A DIFFERENTIAL PROTECTIVE ELECTRICAL APPARATUS INCORPORATING THIS DEVICE, IN PARTICULAR FOR A DIFFERENTIAL CIRCUIT BREAKER
FR3049760B1 (en) CIRCUIT BREAKER TYPE ELECTRICAL APPARATUS
FR2626712A1 (en) ELECTRICAL SWITCH WITH AUTOMATIC CUTTING, PARTICULARLY DIFFERENTIAL SWITCH
FR2935834A1 (en) Electric current switching device i.e. electromechanical relay, for electrical distribution box of motor vehicle, has protection device selecting connection between supply terminals when exterior temperature of relay is higher than value

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

17P Request for examination filed

Effective date: 20051227

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LEGRAND FRANCE

Owner name: LEGRAND SNC

DAX Request for extension of the european patent (deleted)
RIN1 Information on inventor provided before grant (corrected)

Inventor name: KOCH, PIERRE,CIMIEZ PARC

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REF Corresponds to:

Ref document number: 602004016518

Country of ref document: DE

Date of ref document: 20081023

Kind code of ref document: P

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

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080910

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080910

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2314441

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080910

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081210

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080910

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080910

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080910

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090210

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080910

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

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

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080910

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080910

26N No opposition filed

Effective date: 20090611

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081210

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

Ref country code: MC

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

Effective date: 20090731

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

Ref country code: BE

Payment date: 20090710

Year of fee payment: 6

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090720

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

Ref country code: CH

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

Effective date: 20090731

Ref country code: LI

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

Effective date: 20090731

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

Ref country code: GB

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

Effective date: 20090720

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081211

BERE Be: lapsed

Owner name: LEGRAND FRANCE

Effective date: 20100731

Owner name: LEGRAND SNC

Effective date: 20100731

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

Ref country code: LU

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

Effective date: 20090720

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090311

Ref country code: BE

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

Effective date: 20100731

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080910

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

Ref country code: TR

Payment date: 20120614

Year of fee payment: 9

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

Ref country code: ES

Payment date: 20120706

Year of fee payment: 9

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

Ref country code: AT

Payment date: 20120726

Year of fee payment: 9

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

Ref country code: DE

Payment date: 20130729

Year of fee payment: 10

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 408233

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130720

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: 20130720

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

Ref country code: PL

Payment date: 20140624

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602004016518

Country of ref document: DE

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: 20150203

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602004016518

Country of ref document: DE

Effective date: 20150203

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

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

Ref country code: TR

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

Effective date: 20130720

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

Ref country code: FR

Payment date: 20150729

Year of fee payment: 12

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

Ref country code: IT

Payment date: 20150710

Year of fee payment: 12

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20160104

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: 20140721

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

Ref country code: PL

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

Effective date: 20150720

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: 20160801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170331

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: 20160720