EP2466611B1 - Electrical protection device comprising the differential protection function - Google Patents

Electrical protection device comprising the differential protection function Download PDF

Info

Publication number
EP2466611B1
EP2466611B1 EP20110354057 EP11354057A EP2466611B1 EP 2466611 B1 EP2466611 B1 EP 2466611B1 EP 20110354057 EP20110354057 EP 20110354057 EP 11354057 A EP11354057 A EP 11354057A EP 2466611 B1 EP2466611 B1 EP 2466611B1
Authority
EP
European Patent Office
Prior art keywords
toroid
winding
electric
plane
differential protection
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.)
Active
Application number
EP20110354057
Other languages
German (de)
French (fr)
Other versions
EP2466611A1 (en
Inventor
Benoît Hage
Jean-Claude Ramirez
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP2466611A1 publication Critical patent/EP2466611A1/en
Application granted granted Critical
Publication of EP2466611B1 publication Critical patent/EP2466611B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages with differential transformer

Definitions

  • the present invention relates to an electrical protection apparatus comprising the differential protection function, said electrical apparatus comprising at least one cut-off device of a phase and / or neutral and a differential protection device, said devices being juxtaposed laterally and mounted on the same mounting bracket as a rail, each switching device having two main contacts, said main contacts being closed during normal operation of the device and able to be opened so as to interrupt the current in the event of an incident on an electrical circuit, and a breaking chamber to which the arc is displaced as soon as the contacts are separated, said differential protection device comprising a toroid extending in a plane extending substantially perpendicular to the direction of alignment of the devices, the axis of the orifice of the torus being parallel to the axis of alignment of the devices said toroid being adapted to receive a number of so-called primary winding and a so-called secondary winding of measurement of the fault current, the number of primary windings corresponding to the number of electric breaking devices, the primary windings being formed by winding around the toroid of primary conductor
  • Differential circuit breakers comprising, in a manner known per se, a circuit breaker associated with a differential protection module.
  • the circuit breaker is an electromagnetic or electronic protection device whose function is to interrupt the electric current in the event of an incident on an electrical circuit by opening the main contacts of said circuit breaker. It is capable of interrupting an overload current by means of thermal tripping means and a short-circuit current by means of magnetic tripping means.
  • the differential protection module is able to ensure the protection of people, ensuring a trip in case of abnormal current leakage.
  • This differential protection module comprises a toroidal magnetic circuit on which are wound one or more phase and neutral circuits, called primary circuits, and a so-called secondary circuit constituting a fault current detection coil.
  • the measuring coil is the seat of electromagnetic energy that supplies an electromagnet causing the circuit breaker to unlock and open its main contacts.
  • the arc is moved towards the breaking chamber under the effect of the so-called Laplace force, induced by the geometry of the fixed and mobile contacts.
  • the bow is channeled between two cheeks which allow to increase its speed of movement, to guide its trajectory and to lengthen it.
  • the torus is immediately next to the prechamber cut.
  • the torus is provided with primary coils which are wound around its circumference and the lateral proximity of these coils negatively influences both the opening torque of the moving contact (direction, direction, point of application, influence of the environment) and on the propulsive force of the electric arc from birth and during its looping just before moving the arc in pre-chamber.
  • the present invention aims to improve the cut and to avoid the destruction of the pole of the circuit breaker which is adjacent to the differential protection block in short circuits.
  • the subject of the present invention is an electrical protection apparatus, this apparatus being characterized in that if we consider an observation direction defined by the three successive planes extending substantially perpendicularly to the plane of the torus and to the plan for fixing the apparatus, said planes respectively comprising successively the mobile contact (s), the fixed contact (s) and the interrupting chamber, the winding (s) on the toroid follows (r) the winding rule which consists in that the primary conductor coming from the output terminal electrically connected to the fixed contact of the said first breaking device, located closest to the differential protection device, is wound around of the torus in the counterclockwise direction, while the primary conductor from the output terminal electrically connected to the fixed contact of the second cutoff device located next to the cutoff device said pre the opposite side of the differential protection device, is wound around the toroid, in the direction of clockwise, in that the orifice of the torus is located opposite the partition separating the cutoff device said first of the differential protection device, and opposite the cut-off prechamber for receiving the electric arc, the
  • the apparatus is a modular apparatus, each switching device and the differential protection device being each disposed in a separable module or not other modules.
  • the toroid is placed inside the differential protection device, such that the axis of the toroid extends substantially parallel to the direction of alignment of the modules.
  • the separation points of the main contacts, associated respectively with the different cut-off devices are located on the so-called aforementioned first plane.
  • the number of electrical switching devices is two and comprises a phase cutoff device and a neutral cutoff device.
  • the number of electrical breaking modules is two and comprises a phase cutoff module and a neutral cutoff module.
  • the axis of the torus is substantially perpendicular to the side walls of the modules.
  • said apparatus comprising at least two windings connected respectively to two cut-off devices, this apparatus is characterized in that the center of the second winding is located opposite the center of the first winding with respect to the axis of the winding. toroid, such that these two windings are angularly offset by 180 ° relative to each other with respect to this axis.
  • the center of the measuring winding is located in an axial plane of the torus situated at approximately 45 ° with respect to the so-called first axial plane containing the center of the first winding.
  • the differential protection device is located to the left or right of the phase cut-off device and / or the neutral, the above-mentioned winding rule applies in the same way in the two aforementioned provisions if the output terminals are electrically connected to the same contacts.
  • the apparatus is a differential circuit breaker comprising at least one cutoff and / or neutral device and a differential protection device.
  • the device is a bipolar modular differential circuit breaker.
  • a bipolar circuit breaker A is shown attached by one of its 3 side faces to a differential protection module B, the assembly being intended to be mounted on the same mounting bracket (not shown).
  • This circuit breaker comprises two modules, respectively a phase cutoff module 1 said first, and a neutral cutoff module 2, said second.
  • the output terminals of the circuit breaker A, 10.11 for the prior art and 14.15 for the device according to the invention are electrically connected to the terminals 9 of the differential protection device B after passing through a core 6 by so-called primary conductors 7,8, as regards the prior art and 12,13; 16,17; and 18,19 for the invention.
  • This core 6 extends inside the differential protection module in a plane parallel to the lateral faces 3,4,5 of the modules, its axis X extending parallel to the longitudinal direction of the fixing support and to the direction of alignment of the modules.
  • the so-called primary conductors 7,8, one of which is a phase conductor and the other a neutral conductor, are introduced inside the core 6 by its face 6a situated on the side of the circuit-breaker A, then make the torus turn before being introduced again into the torus by the same side as before, then the conductors cross the torus a second time and emerge from the opposite side 6b thereof, after which the conductors are connected to the cores.
  • 9 of the differential module B said pads 9 being intended to receive the output terminals (not shown) of the differential module B.
  • the primary conductor 8 coming from the terminal 11 of the circuit breaker A situated furthest left in the figures passes through the torus 6 in a direction opposite to that of the clockwise, while the primary conductor 7 from the terminal 10 to the right of the first, through the torus in the direction clockwise.
  • the son are as short as possible and has a minimum of folds. There is no crossing of wires between the terminals 10, 11 and the output of the core 6.
  • the primary conductor 13,17,19 coming from the terminal 15 located in the so-called second clipping module 12 is wound on the core 6 in a clockwise direction, while the second conductor 12,16,18 from the terminal 14 of the breaking module 1 said first, is wound on the core 6 in a direction opposite to that of clockwise.
  • the direction of rotation around the torus 6 of the primary conductors has been reversed with respect to the direction of rotation of the corresponding primary conductors of the apparatus according to the prior art.
  • the primary conductors 12, 13 are introduced inside the toroid by the face 6a of the torus 6 situated on the side of the circuit-breaker A, then go around the toroid, then go back over the torus and then leave the torus by the opposite face 6b to that located on the side of the circuit breaker.
  • the son are crossed at the output of the torus. But it will be noted that these wires could be crossed between the terminals 14,15 and the output 6a of the torus.
  • the primary conductors 16, 17 are introduced inside the torus 6 by its face 6b located on the opposite side to the circuit breaker A, then go around the torus, then go back over the torus to leave it by its face 6a located the circuit breaker side to be connected to the pads 9 of the differential protection module B.
  • the son are folded but not crossed between the terminals 14,15 and the output of the core 6a.
  • the primary conductors 18, 19 are introduced into the core 6 by the face 6b thereof located on the opposite side of the circuit breaker, then pass through the core 6 and exit through the other face 6a, before going to connect on the 9 of the differential protection module.
  • the axis X of the core is placed substantially perpendicular to the breaking chamber C.
  • the first coil 21 is placed on the core 6 so that its center 22 is located between a first axial plane Q of the core 6 passing through the point Y of separation of the contacts 23,24 of the circuit breaker and a second axial plane R of the torus forming with the first plane Q an angle ⁇ of substantially 45 °.
  • the center 26 of the second winding 25 (to be represented) is then in a diametrically opposite position with respect to the center 22 of the first winding 21, and the measurement winding (not shown) is in a position offset from the first primary winding 21 and of the second primary winding at an angle of substantially 90 °.
  • this first axial plane Q of the torus is a plane passing through the device from the nose of the device to the fixing support and perpendicularly to this support.
  • the one 21 of the coils has been positioned in a precise zone opposite the point of separation of the contacts and it has been wound in a winding direction which makes it possible to create a magnetic field enabling the time to promote the electromagnetic force acting on the arc and leading to the arc chute, and also to increase the opening torque of the movable contact.
  • the face 6a of the toroid located on the side of the circuit breaker A is located closer to the separation wall 3 between the circuit breaker A and the differential protection module B, so as to reduce as much as possible the distance between the contacts and the torus.
  • any metallic element shielding type
  • all the metal parts as well as the conductors contribute to a complex re-looping of the magnetic field lines and in particular, those produced by the winding of the torus.
  • a modification of the propulsion force is created on the cutoff arc in the direction of its displacement towards the breaking chamber. from the opening of the contacts (during the looping of the arc), then during its journey in the prechamber and up to the breaking chamber.
  • the lateral parasitic component L is increased by a factor of 2 as shown in FIG. figure 2 , which has the effect of reducing the propulsion component T.
  • the torus environment is exploited to optimize the channeling of the magnetic field lines so that they produce the beneficial effects on the electric arc and the moving contact.
  • the effects of the field according to the invention improve the cutoff, while the solution with a screen restores it only.
  • a gain on the opening torque of the movable contact is obtained by a factor of 3 and a cancellation of the parasitic side component, the gain then being 100%.

Description

La présente invention concerne un appareil de protection électrique comportant la fonction de protection différentielle, ledit appareil électrique comportant au moins un dispositif de coupure d'une phase et/ou du neutre et un dispositif de protection différentielle, lesdits dispositifs étant juxtaposés latéralement et montés sur un même support de montage tel un rail, chaque dispositif de coupure comportant deux contacts principaux, lesdits contacts principaux étant fermés lors d'un fonctionnement normal de l'appareil et aptes à être ouverts de manière à interrompre le courant en cas d'incident sur un circuit électrique, et une chambre de coupure vers laquelle l'arc est déplacé dés la séparation des contacts, ledit dispositif de protection différentielle comportant un tore s'étendant dans un plan s'étendant sensiblement perpendiculairement à la direction d'alignement des dispositifs, l'axe de l'orifice du tore étant parallèle à l'axe d'alignement des dispositifs, ledit tore étant destiné à recevoir un certain nombre de bobinage dits primaires et un bobinage dit secondaire de mesure du courant de défaut, le nombre de bobinage primaires correspondant au nombre de dispositifs de coupure électrique, les bobinages primaires étant formés par enroulement autour du tore de conducteurs primaires reliant chacun une borne de sortie d'un dispositif de coupure à une plage de contact du dispositif de protection différentielle.The present invention relates to an electrical protection apparatus comprising the differential protection function, said electrical apparatus comprising at least one cut-off device of a phase and / or neutral and a differential protection device, said devices being juxtaposed laterally and mounted on the same mounting bracket as a rail, each switching device having two main contacts, said main contacts being closed during normal operation of the device and able to be opened so as to interrupt the current in the event of an incident on an electrical circuit, and a breaking chamber to which the arc is displaced as soon as the contacts are separated, said differential protection device comprising a toroid extending in a plane extending substantially perpendicular to the direction of alignment of the devices, the axis of the orifice of the torus being parallel to the axis of alignment of the devices said toroid being adapted to receive a number of so-called primary winding and a so-called secondary winding of measurement of the fault current, the number of primary windings corresponding to the number of electric breaking devices, the primary windings being formed by winding around the toroid of primary conductors each connecting an output terminal of a cut-off device to a contact pad of the differential protection device.

On connaît des disjoncteurs différentiels comportant de manière connue en soi, un disjoncteur associé à un module de protection différentielle. Le disjoncteur est un dispositif électromagnétique ou électronique de protection dont la fonction est d'interrompre le courant électrique en cas d'incident sur un circuit électrique en ouvrant les contacts principaux dudit disjoncteur. Il est capable d'interrompre un courant de surcharge grâce à des moyens de déclenchement thermiques et un courant de court-circuit grâce à des moyens de déclenchement magnétiques.Differential circuit breakers are known comprising, in a manner known per se, a circuit breaker associated with a differential protection module. The circuit breaker is an electromagnetic or electronic protection device whose function is to interrupt the electric current in the event of an incident on an electrical circuit by opening the main contacts of said circuit breaker. It is capable of interrupting an overload current by means of thermal tripping means and a short-circuit current by means of magnetic tripping means.

Le module de protection différentielle est apte à assurer la protection des personnes, en assurant un déclenchement en cas de fuite anormale de courant. Ce module de protection différentielle comporte un circuit magnétique en forme de tore sur lequel sont bobinés un ou plusieurs circuits de phase et du neutre, appelés circuits primaires, ainsi qu'un circuit dit secondaire constituant une bobine de détection du courant de défaut.The differential protection module is able to ensure the protection of people, ensuring a trip in case of abnormal current leakage. This differential protection module comprises a toroidal magnetic circuit on which are wound one or more phase and neutral circuits, called primary circuits, and a so-called secondary circuit constituting a fault current detection coil.

En l'absence de fuite ou de courant résiduel de défaut, les flux produits par les bobines du circuit primaire s'annulent, il ne se passe rien. Si un défaut survient, le courant résiduel de défaut produit un déséquilibre des flux dans les bobines du circuit primaire et un flux magnétique apparaît dans le tore. La bobine de mesure est le siège d'une énergie électro-magnétique qui alimente un électro-aimant provoquant le déverrouillage du disjoncteur et l'ouverture de ses contacts principaux.In the absence of leakage or residual fault current, the flows produced by the coils of the primary circuit are canceled, nothing happens. If a fault occurs, the residual fault current produces an unbalance in the flows in the primary circuit coils and a magnetic flux appears in the toroid. The measuring coil is the seat of electromagnetic energy that supplies an electromagnet causing the circuit breaker to unlock and open its main contacts.

Dés la séparation des contacts, l'arc est déplacé vers la chambre de coupure sous l'effet de la force dite de Laplace, induite par la géométrie des contacts fixe et mobile. Au cours du trajet entre les contacts et la chambre, l'arc est canalisé entre deux joues qui permettent d'augmenter sa vitesse de déplacement, de guider sa trajectoire et de l'allonger.As soon as the contacts are separated, the arc is moved towards the breaking chamber under the effect of the so-called Laplace force, induced by the geometry of the fixed and mobile contacts. During the journey between the contacts and the chamber, the bow is channeled between two cheeks which allow to increase its speed of movement, to guide its trajectory and to lengthen it.

Dans certains cas, le tore se situe immédiatement en regard de la préchambre de coupure. Le tore est pourvu de bobines primaires qui sont enroulées sur sa circonférence et la proximité latérale de ces bobines influe négativement à la fois sur le couple d'ouverture du contact mobile (direction, sens, point d'application, influence de l'environnement) et sur la force de propulsion de l'arc électrique dès sa naissance et pendant sa mise en boucle juste avant le déplacement de l'arc en pré-chambre.In some cases, the torus is immediately next to the prechamber cut. The torus is provided with primary coils which are wound around its circumference and the lateral proximity of these coils negatively influences both the opening torque of the moving contact (direction, direction, point of application, influence of the environment) and on the propulsive force of the electric arc from birth and during its looping just before moving the arc in pre-chamber.

Il en résulte que l'arc hésite et stagne, et par suite, il y a une augmentation de la contrainte thermique. Ainsi, afin d'obtenir les performances de coupure souhaitées, il serait utile de sur-dimensionner les pôles.As a result, the arc hesitates and stagnates, and as a result, there is an increase in thermal stress. Thus, in order to obtain the desired cut-off performance, it would be useful to over-size the poles.

Un artifice, pour annuler l'effet négatif produit par les bobinages du tore, pourrait consister à ajouter un écran métallique entre le tore et le disjoncteur. Mais compte tenu de l'espace insuffisant pour loger un écran métallique d'une épaisseur significative (au moins 2 mm d'épaisseur), cette solution n'est pas possible pour annuler les effets négatifs des bobines de primaire. Enfin, le coût d'une pièce supplémentaire à fabriquer et à gérer n'est pas envisageable dans un contexte industriel.
Un tel appareil de protection électrique est connu du document EP 0 665 569 A1 .An artifice, to cancel the negative effect produced by the windings of the torus, could consist in adding a metal screen between the torus and the circuit breaker. But given the insufficient space to accommodate a metal screen of a significant thickness (at least 2 mm thick), this solution is not possible to cancel the negative effects of the primary coils. Finally, the cost of an additional piece to manufacture and manage is not feasible in an industrial context.
Such an electrical protection device is known from the document EP 0 665 569 A1 .

La présente invention a pour but d'améliorer la coupure et d'éviter la destruction du pôle du disjoncteur qui est mitoyen au bloc de protection différentielle lors de court-circuits.The present invention aims to improve the cut and to avoid the destruction of the pole of the circuit breaker which is adjacent to the differential protection block in short circuits.

A cet effet, la présente invention a pour objet un appareil de protection électrique, cet appareil étant caractérisé en ce que si l'on considère une direction d'observation définie par les trois plans successifs s'étendant sensiblement perpendiculairement au plan du tore et au plan de fixation des appareils, lesdits plans comportant respectivement successivement le(les) contact(s) mobile(s), le(les) contact(s) fixe(s) et la chambre de coupure, le(les) bobinage(s) sur le tore suive(nt) la règle de bobinage qui consiste en ce que le conducteur primaire issu de la borne de sortie reliée électriquement au contact fixe du dispositif de coupure dit premier, situé le plus près du dispositif de protection différentielle, est enroulé autour du tore dans le sens inverse des aiguilles d'une montre, tandis que le conducteur primaire issu de la borne de sortie reliée électriquement au contact fixe du dispositif de coupure dit second situé à côté du dispositif de coupure dit premier, du côté opposé au dispositif de protection différentiel, est enroulé autour du tore, dans le sens des aiguilles d'une montre, en ce que l'orifice du tore est situé en regard de la cloison séparant le dispositif de coupure dit premier du dispositif de protection différentielle, et en regard de la préchambre de coupure destinée à recevoir l'arc électrique, les sens d'enroulement précités autour du tore étant inversés si la(les) borne(s) de sortie est (sont) reliée(s) électriquement au(x) conducteur(s) mobile(s), et en ce que le tore est positionné à l'intérieur du dispositif de protection différentielle de telle manière que le centre du premier bobinage se trouve entre un plan axial du tore, dit premier plan, sensiblement parallèle à la direction initiale de déplacement de l'arc et passant par le point de séparation des contacts principaux de l'un au moins des dispositifs de coupure et un plan axial, dit second, du tore, situé à 45° par rapport à ce premier plan, du côté de la chambre de coupure.For this purpose, the subject of the present invention is an electrical protection apparatus, this apparatus being characterized in that if we consider an observation direction defined by the three successive planes extending substantially perpendicularly to the plane of the torus and to the plan for fixing the apparatus, said planes respectively comprising successively the mobile contact (s), the fixed contact (s) and the interrupting chamber, the winding (s) on the toroid follows (r) the winding rule which consists in that the primary conductor coming from the output terminal electrically connected to the fixed contact of the said first breaking device, located closest to the differential protection device, is wound around of the torus in the counterclockwise direction, while the primary conductor from the output terminal electrically connected to the fixed contact of the second cutoff device located next to the cutoff device said pre the opposite side of the differential protection device, is wound around the toroid, in the direction of clockwise, in that the orifice of the torus is located opposite the partition separating the cutoff device said first of the differential protection device, and opposite the cut-off prechamber for receiving the electric arc, the aforementioned winding directions around the toroid being reversed if the output terminal (s) is (are) connected (s) ) electrically to the movable conductor (s), and in that the toroid is positioned inside the differential protection device such that the center of the first coil is between an axial plane of the core, said foreground, substantially parallel to the initial direction of movement of the arc and passing through the point of separation of the main contacts of at least one of the cut-off devices and an axial plane, said second, torus, located 45 ° with respect to this p first plane, on the side of the break chamber.

Ainsi, si la borne de sortie est raccordée au contact mobile à la place du contact fixe, alors les sens de bobinage réciproques sont inversés.Thus, if the output terminal is connected to the moving contact in place of the fixed contact, then the reciprocal winding directions are reversed.

Selon une réalisation particulière, l'appareil est un appareil modulaire, chaque dispositif de coupure et le dispositif de protection différentielle étant disposés chacun dans un module séparable ou non des autres modules.According to a particular embodiment, the apparatus is a modular apparatus, each switching device and the differential protection device being each disposed in a separable module or not other modules.

Selon une caractéristique particulière, le tore est placé à l'intérieur du dispositif de protection différentielle, de telle manière que l'axe du tore, s'étende sensiblement parallèlement à la direction d'alignement des modules.According to a particular characteristic, the toroid is placed inside the differential protection device, such that the axis of the toroid extends substantially parallel to the direction of alignment of the modules.

Selon une autre caractéristique, les points de séparation des contacts principaux, associés respectivement aux différents dispositifs de coupure sont situés sur le plan dit premier précité.According to another characteristic, the separation points of the main contacts, associated respectively with the different cut-off devices are located on the so-called aforementioned first plane.

Selon une autre caractéristique, le nombre de dispositifs de coupure électrique est de deux et comprend un dispositif de coupure de phase et un dispositif de coupure de neutre.According to another characteristic, the number of electrical switching devices is two and comprises a phase cutoff device and a neutral cutoff device.

Selon une autre caractéristique, le nombre de modules de coupure électrique est de deux et comprend un module de coupure de phase et un module de coupure de neutre.According to another characteristic, the number of electrical breaking modules is two and comprises a phase cutoff module and a neutral cutoff module.

Selon une autre caractéristique, l'axe du tore est sensiblement perpendiculaire aux parois latérales des modules.According to another characteristic, the axis of the torus is substantially perpendicular to the side walls of the modules.

Selon une autre caractéristique, ledit appareil comprenant au moins deux bobinages reliés respectivement à deux dispositifs de coupure, cet appareil est caractérisé en ce que le centre du second bobinage est situé à l'opposé du centre du premier bobinage par rapport à l'axe du tore, de telle manière que ces deux bobinages soient décalés angulairement de 180° l'un par rapport à l'autre par rapport à cet axe.According to another characteristic, said apparatus comprising at least two windings connected respectively to two cut-off devices, this apparatus is characterized in that the center of the second winding is located opposite the center of the first winding with respect to the axis of the winding. toroid, such that these two windings are angularly offset by 180 ° relative to each other with respect to this axis.

Selon une autre caractéristique, le centre du bobinage de mesure est situé dans un plan axial du tore situé à environ 45° par rapport au plan axial dit premier contenant le centre du premier bobinage.According to another characteristic, the center of the measuring winding is located in an axial plane of the torus situated at approximately 45 ° with respect to the so-called first axial plane containing the center of the first winding.

Le dispositif de protection différentielle est situé à gauche ou à droite du dispositif de coupure d'une phase et/ou du neutre, la règle de bobinage précitée s'applique de la même manière dans les deux dispositions précitées si les bornes de sortie sont reliées électriquement aux mêmes contacts.The differential protection device is located to the left or right of the phase cut-off device and / or the neutral, the above-mentioned winding rule applies in the same way in the two aforementioned provisions if the output terminals are electrically connected to the same contacts.

Selon une autre caractéristique, l'appareil est un disjoncteur différentiel, comportant au moins un dispositif de coupure et/ou de neutre et un dispositif de protection différentielle.According to another characteristic, the apparatus is a differential circuit breaker comprising at least one cutoff and / or neutral device and a differential protection device.

Selon une autre caractéristique, l'appareil est un disjoncteur différentiel modulaire bipolaire.According to another characteristic, the device is a bipolar modular differential circuit breaker.

Mais d'autres avantages et caractéristiques de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés donnés uniquement à titre d'exemple et dans lesquels :

  • La figure 1 est une vue en perspective, illustrant schématiquement un disjoncteur associé à un module de protection différentielle selon l'art antérieur,
  • La figure 2 est une vue en perspective, illustrant schématiquement deux modules de coupure respectivement de phase et de neutre associés à un module de protection différentielle, toujours selon l'art antérieur, pendant la coupure,
  • La figure 3 est une vue similaire à la figure 1, illustrant un disjoncteur associé à un module de protection différentielle selon une réalisation particulière de l'invention
  • La figure 4 est une vue similaire aux figures 1 et 3, illustrant un disjoncteur associé à un module de protection différentielle selon une autre réalisation de l'invention,
  • La figure 5 est une vue similaire à la figure 2, selon encore une autre réalisation de l'invention, pendant la coupure,
  • La figure 6 est une vue partielle, illustrant suivant un plan parallèle à la profondeur des appareils, la chambre de coupure, les contacts principaux, le tore et ses bobinages, et
  • La figure 7 est une représentation graphique illustrant en ordonnée, le couple d'ouverture en (N.M) du contact mobile en fonction de la position angulaire en degrés de l'une des bobines autour de l'axe du tore.
But other advantages and features of the invention will become more apparent in the detailed description which follows and refers to the accompanying drawings given solely by way of example and in which:
  • The figure 1 is a perspective view, schematically illustrating a circuit breaker associated with a differential protection module according to the prior art,
  • The figure 2 is a perspective view, schematically illustrating two respective phase and neutral cut-off modules associated with a differential protection module, still according to the prior art, during the cut-off,
  • The figure 3 is a view similar to the figure 1 , illustrating a circuit breaker associated with a differential protection module according to a particular embodiment of the invention
  • The figure 4 is a view similar to figures 1 and 3 , illustrating a circuit breaker associated with a differential protection module according to another embodiment of the invention,
  • The figure 5 is a view similar to the figure 2 according to yet another embodiment of the invention, during the break,
  • The figure 6 is a partial view, illustrating in a plane parallel to the depth of the apparatus, the breaking chamber, the main contacts, the toroid and its coils, and
  • The figure 7 is a graphical representation showing, on the ordinate, the opening torque at (NM) of the moving contact as a function of the angular position in degrees of one of the coils around the axis of the torus.

Sur les figures 1,3 et 4, on voit un disjoncteur bipolaire A accolé par l'une 3 de ses faces latérales, à un module de protection différentielle B, l'ensemble étant destiné à être monté sur un même support de montage (non représenté). Ce disjoncteur comprend deux modules, respectivement un module de coupure de phase 1 dit premier, et un module de coupure de neutre 2, dit second. Les bornes de sortie du disjoncteur A, 10,11 pour l'art antérieur et 14,15 pour le dispositif selon l'invention, sont reliées électriquement aux bornes 9 de l'appareil de protection différentielle B après passage à travers un tore 6 par des conducteurs dits primaires 7,8, pour ce qui concerne l'art antérieur et 12,13 ;16,17 ; et 18,19 pour ce qui concerne l'invention.On the figures 1 , 3 and 4 , a bipolar circuit breaker A is shown attached by one of its 3 side faces to a differential protection module B, the assembly being intended to be mounted on the same mounting bracket (not shown). This circuit breaker comprises two modules, respectively a phase cutoff module 1 said first, and a neutral cutoff module 2, said second. The output terminals of the circuit breaker A, 10.11 for the prior art and 14.15 for the device according to the invention are electrically connected to the terminals 9 of the differential protection device B after passing through a core 6 by so-called primary conductors 7,8, as regards the prior art and 12,13; 16,17; and 18,19 for the invention.

Ce tore 6 s'étend à l'intérieur du module de protection différentielle suivant un plan parallèle aux faces latérales 3,4,5 des modules, son axe X s'étendant parallèlement à la direction longitudinale du support de fixation et à la direction d'alignement des modules.This core 6 extends inside the differential protection module in a plane parallel to the lateral faces 3,4,5 of the modules, its axis X extending parallel to the longitudinal direction of the fixing support and to the direction of alignment of the modules.

Ainsi, selon l'art antérieur, tel que représenté sur les figures 1 et 2, les conducteurs dits primaires 7,8, dont l'un est un conducteur de phase et l'autre un conducteur de neutre, sont introduits à l'intérieur du tore 6 par sa face 6a située du côté du disjoncteur A, puis font le tour du tore avant d'être de nouveau introduits dans le tore par le même côté que précédemment, puis les conducteurs traversent le tore une seconde fois et ressortent par le côté 6b de celui-ci opposé au précédent, après quoi les conducteurs sont raccordés aux plages 9 du module différentiel B, lesdites plages 9 étant destinées à recevoir les bornes de sortie (non représentées) du module différentiel B.Thus, according to the prior art, as represented on the figures 1 and 2 the so-called primary conductors 7,8, one of which is a phase conductor and the other a neutral conductor, are introduced inside the core 6 by its face 6a situated on the side of the circuit-breaker A, then make the torus turn before being introduced again into the torus by the same side as before, then the conductors cross the torus a second time and emerge from the opposite side 6b thereof, after which the conductors are connected to the cores. 9 of the differential module B, said pads 9 being intended to receive the output terminals (not shown) of the differential module B.

Dans cette réalisation de l'art antérieur, le conducteur primaire 8 issu de la borne 11 du disjoncteur A située la plus à gauche sur les figures, traverse le tore 6 suivant un sens opposé à celui des aiguilles d'une montre, tandis que le conducteur primaire 7 issu de la borne 10 située à droite de la première, traverse le tore suivant le sens des aiguilles d'une montre.In this embodiment of the prior art, the primary conductor 8 coming from the terminal 11 of the circuit breaker A situated furthest left in the figures, passes through the torus 6 in a direction opposite to that of the clockwise, while the primary conductor 7 from the terminal 10 to the right of the first, through the torus in the direction clockwise.

Suivant cette réalisation, les fils sont le plus courts possible et comporte un minimum de plis. Il n'y a pas de croisement de fils entre les bornes 10,11 et la sortie du tore 6.According to this embodiment, the son are as short as possible and has a minimum of folds. There is no crossing of wires between the terminals 10, 11 and the output of the core 6.

Selon les trois réalisations de l'invention illustrées respectivement sur les figures 3,4 et 5, le conducteur primaire 13,17,19 issu de la borne 15 située dans le module de coupure dit second 12, est enroulé sur le tore 6 selon le sens des aiguilles d'une montre, tandis que le second conducteur 12,16,18 issu de la borne 14 du module de coupure 1 dit premier, est enroulé sur le tore 6 selon un sens opposé à celui des aiguilles d'une montre. Ainsi, selon l'invention, le sens de rotation autour du tore 6 des conducteurs primaires a été inversé par rapport au sens de rotation des conducteurs primaires correspondant de l'appareil selon l'art antérieur.According to the three embodiments of the invention illustrated respectively on figures 3 , 4 and 5 the primary conductor 13,17,19 coming from the terminal 15 located in the so-called second clipping module 12 is wound on the core 6 in a clockwise direction, while the second conductor 12,16,18 from the terminal 14 of the breaking module 1 said first, is wound on the core 6 in a direction opposite to that of clockwise. Thus, according to the invention, the direction of rotation around the torus 6 of the primary conductors has been reversed with respect to the direction of rotation of the corresponding primary conductors of the apparatus according to the prior art.

Selon la réalisation de l'invention illustrée sur la figure 3, les conducteurs primaires 12,13 sont introduits à l'intérieur du tore par la face 6a du tore 6 située du côté du disjoncteur A, puis font le tour du tore, puis retraversent le tore pour ressortir ensuite du tore par la face 6b opposée à celle située du côté du disjoncteur. Ainsi, dans cette réalisation, les fils sont croisés à la sortie du tore. Mais on notera que ces fils pourraient être croisés entre les bornes 14,15 et la sortie 6a du tore.According to the embodiment of the invention illustrated on the figure 3 the primary conductors 12, 13 are introduced inside the toroid by the face 6a of the torus 6 situated on the side of the circuit-breaker A, then go around the toroid, then go back over the torus and then leave the torus by the opposite face 6b to that located on the side of the circuit breaker. Thus, in this embodiment, the son are crossed at the output of the torus. But it will be noted that these wires could be crossed between the terminals 14,15 and the output 6a of the torus.

Selon la réalisation de l'invention illustrée sur la figure 4, les conducteurs primaires 16,17 sont introduits à l'intérieur du tore 6 par sa face 6b située du côté opposé au disjoncteur A, puis font le tour du tore, puis retraversent le tore pour ressortir de celui-ci par sa face 6a située du côté du disjoncteur pour être raccordés sur les plages 9 du module de protection différentiel B. Dans cette réalisation, les fils sont pliés mais pas croisés entre les bornes 14,15 et la sortie du tore 6a.According to the embodiment of the invention illustrated on the figure 4 , the primary conductors 16, 17 are introduced inside the torus 6 by its face 6b located on the opposite side to the circuit breaker A, then go around the torus, then go back over the torus to leave it by its face 6a located the circuit breaker side to be connected to the pads 9 of the differential protection module B. In this embodiment, the son are folded but not crossed between the terminals 14,15 and the output of the core 6a.

Selon la réalisation de la figure 5, les conducteurs primaires 18,19 sont introduits dans le tore 6 par la face 6b de celui-ci situé du côté opposé au disjoncteur, puis traversent le tore 6 et sortent par l'autre face 6a, avant d'aller se raccorder sur les plages 9 du module de protection différentielle.According to the realization of the figure 5 the primary conductors 18, 19 are introduced into the core 6 by the face 6b thereof located on the opposite side of the circuit breaker, then pass through the core 6 and exit through the other face 6a, before going to connect on the 9 of the differential protection module.

Selon l'invention et tel que représenté sur la figure 6, l'axe X du tore est placé sensiblement perpendiculairement à la chambre de coupure C. Le premier bobinage 21 est placé sur le tore 6 de telle manière que son centre 22 soit situé entre un premier plan Q axial du tore 6 passant par le point Y de séparation des contacts 23,24 du disjoncteur et un second plan axial R du tore formant avec le premier plan Q un angle α de sensiblement 45°. Le centre 26 du second bobinage 25 (à représenter) se situe alors dans une position diamétralement opposée par rapport au centre 22 du premier bobinage 21, et le bobinage de mesure (non représenté) se trouve dans une position décalée du premier bobinage primaire 21 et du second bobinage primaire d'un angle de sensiblement 90°. Selon cette réalisation particulière, ce premier plan axial Q du tore est un plan traversant l'appareil du nez de l'appareil vers le support de fixation et perpendiculairement à ce support.According to the invention and as shown in the figure 6 , the axis X of the core is placed substantially perpendicular to the breaking chamber C. The first coil 21 is placed on the core 6 so that its center 22 is located between a first axial plane Q of the core 6 passing through the point Y of separation of the contacts 23,24 of the circuit breaker and a second axial plane R of the torus forming with the first plane Q an angle α of substantially 45 °. The center 26 of the second winding 25 (to be represented) is then in a diametrically opposite position with respect to the center 22 of the first winding 21, and the measurement winding (not shown) is in a position offset from the first primary winding 21 and of the second primary winding at an angle of substantially 90 °. According to this particular embodiment, this first axial plane Q of the torus is a plane passing through the device from the nose of the device to the fixing support and perpendicularly to this support.

Ainsi, selon l'invention, on a positionné l'un 21 des bobinages dans une zone précise en regard du point de séparation des contacts et on l'a bobiné dans un sens d'enroulement qui permet de créer un champs magnétique permettant à la fois de favoriser la force électromagnétique agissant sur l'arc et l'entraînant vers la chambre de coupure, et également d'augmenter le couple d'ouverture du contact mobile.Thus, according to the invention, the one 21 of the coils has been positioned in a precise zone opposite the point of separation of the contacts and it has been wound in a winding direction which makes it possible to create a magnetic field enabling the time to promote the electromagnetic force acting on the arc and leading to the arc chute, and also to increase the opening torque of the movable contact.

Avantageusement, la face 6a du tore située du côté du disjoncteur A est située au plus près de la cloison 3 de séparation entre le disjoncteur A et le module de protection différentielle B, de manière à réduire le plus possible la distance entre les contacts et le tore. Afin d'exploiter l'environnement du tore pour optimiser la canalisation des lignes de champs magnétiques, sera éliminé tout élément métallique (du type blindage) susceptible de perturber le champ magnétique du tore, et placé entre le tore et le pôle du disjoncteur. En effet, l'ensemble des pièces métalliques ainsi que les conducteurs contribuent à un re-bouclage complexe des lignes de champ magnétiques et en particulier, celles produites par le bobinage du tore.Advantageously, the face 6a of the toroid located on the side of the circuit breaker A is located closer to the separation wall 3 between the circuit breaker A and the differential protection module B, so as to reduce as much as possible the distance between the contacts and the torus. In order to exploit the torus environment to optimize the channeling of the magnetic field lines, any metallic element (shielding type) that may disturb the magnetic field of the toroid and placed between the toroid and the pole of the circuit breaker will be eliminated. Indeed, all the metal parts as well as the conductors contribute to a complex re-looping of the magnetic field lines and in particular, those produced by the winding of the torus.

Ainsi, grâce à l'invention, une modification de la force de propulsion est créé sur l'arc de coupure dans le sens de son déplacement vers la chambre de coupure dès l'ouverture des contacts (lors de la mise en boucle de l'arc), puis pendant son déplacement en préchambre et jusqu'à la chambre de coupure.Thus, thanks to the invention, a modification of the propulsion force is created on the cutoff arc in the direction of its displacement towards the breaking chamber. from the opening of the contacts (during the looping of the arc), then during its journey in the prechamber and up to the breaking chamber.

Le disjoncteur ne risque plus d'être détruit par les effets négatifs du champ du bobinage du tore sur l'arc lors des court-circuitsThe circuit breaker is no longer in danger of being destroyed by the negative effects of the toroid winding field on the arc during short circuits

En effet, si l'on dispose le bobinage de façon traditionnelle, tel qu'illustré sur la figure 1, on augmente la composante parasite latérale L d'un facteur 2 tel que ceci est illustré sur la figure 2, ce qui a pour effet de diminuer la composante de propulsion T.Indeed, if we have the winding in a traditional way, as illustrated on the figure 1 , the lateral parasitic component L is increased by a factor of 2 as shown in FIG. figure 2 , which has the effect of reducing the propulsion component T.

Si au contraire, on réalise un bobinage selon l'invention, dans un sens inversé par rapport au sens industriel, cette composante latérale L est annulée, et par suite la composante de propulsion T de la force sur l'arc vers la chambre de coupure s'en trouve augmentée, sa valeur optimum étant atteinte pour une position préconisée correspondant à un angle maximum de 45° entre le premier plan axial précité Q et le second plan axial précité R, tel qu'illustré sur la figure 7 qui représente une courbe caractéristique du gain obtenu en bobinage inverse selon l'invention, en fonction de l'angle entre les deux plans précités. En effet, sur cette figure, on voit que lorsque l'on dispose le bobinage sur la circonférence du tore en différentes positions angulaires par rapport au premier plan axial précité du tore, par pas de 25°, en positif et en négatif, on obtient une courbe qui présente un pic de couple très prononcé entre 0 et 45°.If, on the other hand, a winding according to the invention is carried out in a direction that is inverted with respect to the industrial direction, this lateral component L is canceled, and consequently the propulsion component T of the force on the arc towards the breaking chamber is thereby increased, its optimum value being reached for a recommended position corresponding to a maximum angle of 45 ° between the aforementioned first axial plane Q and the aforementioned second axial plane R, as illustrated in FIG. figure 7 which represents a characteristic curve of the gain obtained in inverse winding according to the invention, as a function of the angle between the two aforementioned planes. Indeed, in this figure, we see that when we have the winding on the circumference of the torus in different angular positions relative to the aforementioned first axial plane of the torus, in steps of 25 °, in positive and negative, we obtain a curve that has a very pronounced torque peak between 0 and 45 °.

Il en va de même pour le couple d'ouverture s'exerçant sur le contact mobile qui est multiplié par un facteur 3 avec le bobinage inversé et un positionnement de la première bobine dans la zone préconisée (angle compris entre 0 et 45°).It is the same for the opening torque exerted on the moving contact which is multiplied by a factor 3 with the inverted winding and positioning of the first coil in the recommended area (angle between 0 and 45 °).

Ainsi, selon l'invention, l'environnement du tore est exploité pour optimiser la canalisation des lignes de champ magnétiques afin qu'elles produisent les effets bénéfiques sur l'arc électrique et le contact mobile.Thus, according to the invention, the torus environment is exploited to optimize the channeling of the magnetic field lines so that they produce the beneficial effects on the electric arc and the moving contact.

D'autre part, la coupure est améliorée par rapport à une solution d'un bloc différentiel équipé d'un blindage.On the other hand, the cut is improved compared to a solution of a differential block equipped with a shield.

En effet, les effets du champ selon l'invention améliorent la coupure, alors que la solution avec un écran la rétablie seulement. On obtient un gain sur le couple d'ouverture du contact mobile d'un facteur 3 et une annulation de la composante parasite latérale, le gain étant alors de 100%.Indeed, the effects of the field according to the invention improve the cutoff, while the solution with a screen restores it only. A gain on the opening torque of the movable contact is obtained by a factor of 3 and a cancellation of the parasitic side component, the gain then being 100%.

Claims (12)

  1. An electric protection apparatus (A) comprising the differential protection function, said electric apparatus comprising at least one breaking device of a phase and/or of the neutral (1,2) and a differential protection device (B), said devices being laterally juxtaposed and fitted on the same mounting support such as a rail, each breaking device comprising two main contacts, said main contacts (23,24) being designed to be closed in normal operation of the apparatus and able to be opened so as to interrupt the current in case of an incident arising on an electric circuit, and an extinguishing chamber (C) to which the arc is displaced as soon as separation of the contacts takes place, said differential protection device comprising a toroid (6) extending in a plane extending substantially perpendicularly to the direction of alignment of the devices, the axis of the opening of the toroid being parallel to the axis of alignment of the devices, said toroid being designed to receive a certain number of windings called primary windings (21) and a winding (25) called secondary fault current measurement winding, the number of primary windings corresponding to the number of electric current breaking devices, the primary windings being formed by coiling of primary conductors (18,19) around the toroid, each primary conductor connecting an output terminal of a current breaking device to a contact strip of the differential protection device, characterized in that, if a direction of observation defined by the three successive planes extending substantially perpendicularly to the plane of the toroid and to the fixing plane of the apparatuses is considered, said planes successively respectively comprising the movable contact(s), the stationary contact(s) and the arc extinguishing chamber, the winding(s) on the toroid follow(s) the winding rule which consists in the primary conductor (12,16,18) originating from the output terminal (14) electrically connected to the stationary contact of the current breaking device (1) called first breaking device, located closest to the differential protection device, being wound around the toroid (6) in the counter-clockwise direction, whereas the primary conductor (13,17,19) originating from the output terminal (15) electrically connected to the stationary contact of the current breaking device (2) called second breaking device located next to the current breaking device called first breaking device, on the opposite side from the differential protection device, is wound around the toroid (6) in the clockwise direction,
    in that the opening of the toroid is located facing the partition (3) separating the current breaking device called first breaking device (1) of the differential protection device B, and facing the extinguishing pre-chamber C designed to receive the electric arc, the above-mentioned winding directions around the toroid being reversed if the output terminal(s) is(are) electrically connected to the movable conductor(s),
    and in that the toroid (6) is positioned inside the differential protection device in such a way that the centre (22) of the first winding (21) is located between an axial plane Q of the toroid, called first plane, substantially parallel to the initial direction of displacement of the arc and passing via the separation point Y of the main contacts (23,24) of at least one of the breaking devices and an axial plane R, called second plane, of the toroid, located at 45 ° with respect to this first plane Q on the side where the arc extinguishing chamber is located.
  2. The electric protection apparatus according to claim 1, characterized in that it is a modular apparatus, each current breaking device (1,2) and the differential protection device B each being arranged in a module that is separable or not from the other modules.
  3. The electric protection apparatus according to claim 1 or 2, characterized in that the toroid (6) is placed inside the differential protection device B in such a way that the axis X of the toroid (6) extends in substantially parallel manner to the direction of alignment of the modules.
  4. The electric protection apparatus according to any one of claims 1 to 3, characterized in that the separation points Y of the main contacts (23,24), respectively associated with the different current breaking devices (1,2) are located on the plane called above-mentioned first plane Q.
  5. The electric protection apparatus according to any one of the foregoing claims, characterized in that the electric current breaking devices (1,2) are two in number and comprise a phase breaking device and a neutral breaking device.
  6. The electric protection apparatus according to any one of claims 2 to 5, characterized in that the electric current breaking modules are two in number and comprise a phase breaking module and a neutral breaking module.
  7. The electric protection apparatus according to any one of claims 2 to 6, characterized in that the axis X of the toroid (6) is substantially perpendicular to the side panels (3,4,5) of the modules.
  8. The electric protection apparatus according to any one of the foregoing claims, comprising at least two windings (21,25) respectively connected to two current breaking devices (1,2), characterized in that the centre (26) of the second winding (25) is located opposite the centre (22) of the first winding (21) with respect to the axis X of the toroid (6), so that the two windings are angularly offset by 180° from one another with respect to this axis.
  9. The electric protection apparatus according to any one of the foregoing claims, characterized in that the centre of the measurement winding is located in an axial plane of the toroid located at about 45 ° with respect to the axial plane called first plane Q containing the centre (22) of the first winding (21).
  10. The electric protection apparatus according to any one of the foregoing claims, characterized in that the differential protection device is located to the right or to the left of the breaking device of a phase and/or of the neutral, the above-mentioned winding rule applying in the same manner in the two above-mentioned arrangements if the output terminals are electrically connected to the same contacts.
  11. The electric protection apparatus according to any one of the foregoing claims, characterized in that it is a differential circuit breaker comprising at least one phase and/or neutral current breaking device A and a differential protection device B.
  12. The electric protection apparatus according to claim 11, characterized in that it is a two-pole modular differential circuit breaker.
EP20110354057 2010-12-20 2011-10-21 Electrical protection device comprising the differential protection function Active EP2466611B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1004960A FR2969369A1 (en) 2010-12-20 2010-12-20 ELECTRICAL PROTECTION APPARATUS COMPRISING THE DIFFERENTIAL PROTECTION FUNCTION

Publications (2)

Publication Number Publication Date
EP2466611A1 EP2466611A1 (en) 2012-06-20
EP2466611B1 true EP2466611B1 (en) 2013-07-24

Family

ID=44317948

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110354057 Active EP2466611B1 (en) 2010-12-20 2011-10-21 Electrical protection device comprising the differential protection function

Country Status (4)

Country Link
EP (1) EP2466611B1 (en)
CN (1) CN102543611B (en)
ES (1) ES2428495T3 (en)
FR (1) FR2969369A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104167340B (en) * 2013-05-20 2017-04-26 施耐德电器工业公司 Circuit breaker
FR3028663B1 (en) * 2014-11-14 2016-12-16 Hager-Electro Sas ELECTROMAGNETIC ACTUATOR WITH MULTIPLE COILS
CN109427506B (en) * 2017-08-25 2020-11-20 佛山市顺德区美的电热电器制造有限公司 Pressure switch and electric pressure cooker
FR3072462B1 (en) * 2017-10-16 2020-05-22 Schneider Electric Industries Sas CURRENT MEASURING DEVICE, MANUFACTURING METHOD, PROTECTION MODULE AND DIFFERENTIAL CIRCUIT BREAKER USING SUCH A CURRENT MEASURING DEVICE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2627324B1 (en) * 1988-02-16 1995-05-12 Merlin Gerin PASSIVE NEUTRAL DIFFERENTIAL CIRCUIT BREAKER
FR2662017B1 (en) * 1990-05-10 1996-07-26 Merlin Gerin SINGLE POLE, NEUTRAL DIFFERENTIAL CIRCUIT BREAKER.
IE920641A1 (en) * 1991-03-27 1992-10-07 Westinghouse Electric Corp Dual wound trip solenoid
FR2715517B1 (en) * 1994-01-26 1996-03-22 Merlin Gerin Differential trip unit.
FR2752479B1 (en) * 1996-08-13 1998-09-25 Schneider Electric Sa ELECTRONIC DIFFERENTIAL CIRCUIT BREAKER
FR2920911B1 (en) * 2007-09-11 2010-02-19 Schneider Electric Ind Sas ELECTRICAL DEVICE WITH DIFFERENTIAL PROTECTION
FR2925756B1 (en) * 2007-12-20 2010-02-26 Schneider Electric Ind Sas MODULAR ELECTRICAL PROTECTION APPARATUS COMPRISING A COMPLEMENTARY ELECTRICAL FUNCTION SUCH AS THE DIFFERENTIAL PROTECTION FUNCTION

Also Published As

Publication number Publication date
EP2466611A1 (en) 2012-06-20
CN102543611B (en) 2016-06-01
ES2428495T3 (en) 2013-11-08
FR2969369A1 (en) 2012-06-22
CN102543611A (en) 2012-07-04

Similar Documents

Publication Publication Date Title
EP1736784B1 (en) Differential current measuring apparatus, tripping device and switchgear
EP2466611B1 (en) Electrical protection device comprising the differential protection function
EP1596206B1 (en) Electric current measuring arrangement, current sensor, electric tripping device and circuit breaker comprising such a current measuring device
BE897691A (en) MIXED DIFFERENTIAL AND SHORT-CIRCUIT TRIGGER EQUIPPED WITH A COMMON HOMOPOLAR CURRENT CURRENT TRANSFORMER
EP2541578B1 (en) Electrical protection device comprising at least one cut-off module controlled by a control device with an electromagnetic coil
EP0433184A1 (en) Hybrid-medium high voltage circuit breaker
EP0589779B1 (en) Magnetic blow-out circuit breaker
FR2782409A1 (en) UNDERWATER TRANSFORMER SELF-PROTECTED BY A DEVICE INCLUDING A CIRCUIT BREAKER AND FUSES
EP3470853A1 (en) Current measuring device, method of manufacture, protection module and differential circuit breaker using such a current measuring device
JP6428683B2 (en) Circuit breaker trip device and circuit to be protected using the circuit breaker trip device
EP2037477B1 (en) Electric device with differential protection
EP0004801B1 (en) Circuit breaker with an electromagnetic device for a fast opening operation of the movable contact
EP0295162B1 (en) Magnetothermal release unit for circuit breaker or differential circuit breaker
FR2738952A1 (en) Phase null current transformer trip unit for earth leakage protection
EP1168402B1 (en) Magnetic subassembly for a mocular electrical device with a limited width
JP2003077745A (en) Zero-phase current transformer
FR2938129A1 (en) Electric board, has multiple metal plates placed in output terminals and connected with ends of conductors, and radiators for evacuating calories to limit temperature of main electric switching apparatus
EP3435398B1 (en) Differential electrical protection apparatus
EP3029705B1 (en) Method for manufacturing an electric device providing at least two electrical functions
FR2811805A1 (en) Electrical differential protection circuit switch reinforcing isolation mechanism having primary conductors rotating section attached and freeing conductor ends apparatus connection.
FR2799840A1 (en) Differential current sensor for detecting faults on electrical circuits, comprises inner ring core with compensating measurement windings enclosed by trunking with further compensating windings
EP0025375B1 (en) Circuit breaker with magnetic blow-out means and rotating arc
FR3054383A1 (en) ELECTRICAL PROTECTION TABLE
FR2814851A1 (en) High power protection electrical security apparatus having two series mounted electromagnetic circuit breakers sharing housing and having chamber/arming unit.
EP3300531B1 (en) Electronic tripping device for an electrical line protection apparatus

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): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20121206

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): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM 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: AT

Ref legal event code: REF

Ref document number: 623856

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602011002465

Country of ref document: DE

Effective date: 20130919

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2428495

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20131108

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 623856

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130724

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130724

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: LT

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: 20130724

Ref country code: IS

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: 20131124

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: 20130828

Ref country code: NO

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: 20131024

Ref country code: AT

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: 20130724

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: 20131125

Ref country code: HR

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: 20130724

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: 20130724

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: 20130724

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: 20130724

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: 20131025

Ref country code: PL

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: 20130724

Ref country code: LV

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: 20130724

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: 20130724

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: 20130724

BERE Be: lapsed

Owner name: SCHNEIDER ELECTRIC INDUSTRIES SAS

Effective date: 20131031

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

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: 20130724

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: 20130724

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: 20130724

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: 20130724

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: 20130724

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

Effective date: 20130724

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

Effective date: 20140425

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602011002465

Country of ref document: DE

Effective date: 20140425

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

Ref country code: BE

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

Effective date: 20131031

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 NON-PAYMENT OF DUE FEES

Effective date: 20131021

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

Ref country code: SM

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: 20130724

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20130724

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

Ref country code: RS

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: 20131024

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: 20130724

Ref country code: MK

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: 20130724

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; INVALID AB INITIO

Effective date: 20111021

Ref country code: LU

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

Effective date: 20131021

Ref country code: CH

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

Effective date: 20141031

Ref country code: LI

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

Effective date: 20141031

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

Ref country code: MT

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: 20130724

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

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

Ref country code: AL

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: 20130724

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

Ref country code: GB

Payment date: 20231024

Year of fee payment: 13

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

Ref country code: ES

Payment date: 20231110

Year of fee payment: 13

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

Ref country code: IT

Payment date: 20231024

Year of fee payment: 13

Ref country code: FR

Payment date: 20231026

Year of fee payment: 13

Ref country code: DE

Payment date: 20231027

Year of fee payment: 13