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EP2200060A1 - Medium-voltage electric distribution cell - Google Patents

Medium-voltage electric distribution cell Download PDF

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Publication number
EP2200060A1
EP2200060A1 EP09354042A EP09354042A EP2200060A1 EP 2200060 A1 EP2200060 A1 EP 2200060A1 EP 09354042 A EP09354042 A EP 09354042A EP 09354042 A EP09354042 A EP 09354042A EP 2200060 A1 EP2200060 A1 EP 2200060A1
Authority
EP
European Patent Office
Prior art keywords
current
parts
cell according
electrical distribution
distribution cell
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
EP09354042A
Other languages
German (de)
French (fr)
Other versions
EP2200060B1 (en
Inventor
Hans Schellekens
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
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Schneider Electric Industries SAS
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Publication date
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Publication of EP2200060A1 publication Critical patent/EP2200060A1/en
Application granted granted Critical
Publication of EP2200060B1 publication Critical patent/EP2200060B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6668—Operating arrangements with a plurality of interruptible circuit paths in single vacuum chamber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators

Definitions

  • the present invention relates to a medium voltage electrical distribution cell intended to be interposed between two parts of an electrical circuit so as to provide the functions respectively of current flow between the two parts, of interruption of the current between the two parts, of severing the voltage and grounding of one of the parts of said circuit.
  • the vacuum bulbs are used to perform the switch and breaker functions while the air or gas insulated devices are most often used to perform the functions of sectioning or switching. Earth.
  • These functions can be combined in different ways to realize functional units providing both power interruption, sectioning and grounding functions.
  • a functional unit consisting of a three-position switchgear respectively performing the functions switch, disconnector and earthing switch or a functional unit consisting of a switch-disconnector combined with a disconnector earth, or a functional unit consisting of a two-position switch including grounding combined with a switch or circuit breaker.
  • a functional unit consisting of the combination of three devices respectively performing the functions of disconnector, earthing switch and switch.
  • the present invention aims to provide a medium voltage electrical distribution cell for performing at least the circuit breaker (switch) and disconnector functions by means of insulation technology using the vacuum so as to eliminate the use of gas, while maintaining a certain compactness of the cell.
  • the subject of the present invention is an electrical distribution cell of the kind mentioned above, this cell being characterized in that the current-passing, interruption and sectioning functions of the above-mentioned voltage are realized in vacuum, and in that it further comprises an additional separation means placed in the ground connection circuit, said means being able to add an additional sectioning gap in the earth circuit in the transit position. current and interruption of the current and to remove this additional sectioning interval in the disconnected position of the voltage between the two parts and during the grounding of one of the aforementioned parts.
  • the above grounding function is also performed in a vacuum.
  • this cell comprises a switch (or circuit breaker) with three positions, respectively a position for passing the current between the two parts, a position for interrupting the current and for disconnecting the voltage between the two parts and a position
  • This switch / circuit breaker is housed in a vacuum interrupter.
  • this additional separation means is realized with technology of cut in the air, in the gas, in the oil or in the vacuum.
  • this bulb comprises an envelope inside which are mounted a first fixed contact electrically connected to the aforesaid first portion of current, a movable contact electrically connected to the aforementioned second circuit part and a second fixed contact which works either as a floating screen or as a contact, and electrically connected to ground.
  • the additional separation means comprises a switch to connect or not the second fixed contact to ground.
  • the aforementioned first circuit portion is a busbar while the second circuit portion is a cable.
  • the second fixed contact is located substantially in the center of the bulb.
  • this cell comprises means for detecting the leakage current in the bulb (s). This makes it possible to detect a loss of vacuum, to make a diagnosis of the vacuum level, or to diagnose a loss of tightness of the bulb.
  • this means comprises means for continuously measuring the voltage or current flowing through the second fixed contact.
  • a medium voltage distribution cell C intended to be placed between a busbar 1 and a cable 2 to ensure between these two elements, or the passage of the current (position a on the figure 1 ), either an interruption of the current following a cut, or a disconnection of the voltage (b), or an earthing of the (of) cables (position c).
  • This cell C comprises a vacuum interrupter A and a connection circuit 3 to earth T comprising an air switch (or switch) 4.
  • This bulb A houses a circuit breaker 5 which can take three different positions, namely a service position (as shown in FIG.
  • FIG 2 allowing the passage of the current of service, an open position following a power failure ( figure 3 ), a sectioning position ( fig.4 ) and a grounding position ( fig.5 ).
  • the switcher 4 can take two positions (e, f on the figure 1 ), namely a first position e in which it electrically connects the connection point R to the earth of the bulb, to the ground T, and a position (f) in which it interposes between this connection point R and the ground T, an additional sectioning interval I.
  • said bulb A comprises an enclosure 6 of substantially cylindrical shape filled with vacuum and housing a first fixed contact 7 electrically connected to the busbar, a movable contact 8 electrically connected to the cable and a second fixed contact 9 electrically connected by the intermediate of the aforementioned connection point R at the aforementioned switch 4, said switch being able to connect the aforementioned connection point R to T.
  • the operation of the aforementioned distribution cell will be described in the following with reference to the figures.
  • the bulb A In the position illustrated on the figure 2 , or service position, the bulb A is in the closed position to allow the passage of the service current.
  • the switch 4 is in the open position.
  • the first fixed contact 7 and the movable contact 8 are separated, the passage of the current is interrupted.
  • the transition from position a to position b corresponds to an opening of the electric circuit associated with a power failure.
  • the use of bulb A in these two positions is conventional.
  • the second fixed contact 9 inside the bulb A behaves like a floating screen. The fact that this screen is floating facilitates the dielectric strength during the cutoff phase by reducing the risk of dielectric breakdown.
  • the cell On the figure 4 the cell is in the so-called sectioning position. The closing of the switch 4 has been achieved, causing the grounding of the second fixed contact 9. As a result, the electric field inside the bulb changes drastically. A virtual barrier now prevents direct boots between contacts.
  • the bulb then functions as a disconnector.
  • the earthing switch in the closed position strengthens the sectioning function in the bulb.
  • the moving contact 8 has been brought into contact with the second fixed contact 9 of the bulb A.
  • the cell is then in the grounding position. Empty technology makes it possible to reliably achieve the closing power.
  • the invention is not limited to the embodiment described and illustrated which has been given by way of example.
  • the switchgear making the interruption of the current inside the bulb can be a switch or a circuit breaker.
  • the different functions can be placed in different bulbs, one for each function.

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

The cell (C) has an additional separation unit i.e. switch (4), placed in a ground connection circuit (3). The separation unit adds an additional selection interval (I) in the ground connection circuit in a position of passage of the current and interruption of the current. The separation unit suppresses the additional selection interval in a position of selection of voltage between a bus bar and a cable of an electrical circuit and during grounding one of the bus bar and the cable.

Description

La présente invention concerne une cellule de distribution électrique moyenne tension destinée à être interposée entre deux parties d'un circuit électrique de manière à assurer les fonctions respectivement de passage du courant entre les deux parties, d'interruption du courant entre les deux parties, de sectionnement de la tension et de mise à la terre de l'une des parties dudit circuit.The present invention relates to a medium voltage electrical distribution cell intended to be interposed between two parts of an electrical circuit so as to provide the functions respectively of current flow between the two parts, of interruption of the current between the two parts, of severing the voltage and grounding of one of the parts of said circuit.

Dans les cellules de distribution électriques connues, les ampoules à vide sont utilisées pour réaliser les fonctions interrupteur et disjoncteur tandis que les dispositifs à isolation dans l'air ou dans le gaz sont le plus souvent utilisés pour réaliser les fonctions de sectionnement ou de mise à la terre.
Ces fonctions peuvent être combinées de différentes manières afin de réaliser des unités fonctionnelles assurant à la fois les fonctions d'interruption du courant, de sectionnement et de mise à la terre.
Ainsi, on connaît une unité fonctionnelle constituée d'un appareil de coupure à trois positions, réalisant respectivement les fonctions interrupteur, sectionneur et sectionneur de terre ou bien une unité fonctionnelle constituée d'un interrupteur-sectionneur combiné à un sectionneur de terre, ou bien une unité fonctionnelle constituée par un sectionneur deux positions comprenant la mise à la terre combinée à un interrupteur ou un disjoncteur. Et l'on connaît également par exemple, une unité fonctionnelle constituée par la combinaison de trois dispositifs réalisant respectivement les fonctions de sectionneur, sectionneur de terre et interrupteur.In the known electrical distribution cells, the vacuum bulbs are used to perform the switch and breaker functions while the air or gas insulated devices are most often used to perform the functions of sectioning or switching. Earth.
These functions can be combined in different ways to realize functional units providing both power interruption, sectioning and grounding functions.
Thus, there is known a functional unit consisting of a three-position switchgear, respectively performing the functions switch, disconnector and earthing switch or a functional unit consisting of a switch-disconnector combined with a disconnector earth, or a functional unit consisting of a two-position switch including grounding combined with a switch or circuit breaker. And there is also known for example, a functional unit consisting of the combination of three devices respectively performing the functions of disconnector, earthing switch and switch.

La présente invention a pour but de réaliser une cellule de distribution électrique moyenne tension permettant de réaliser au moins les fonctions disjoncteur (interrupteur) et sectionneur au moyen de la technologie d'isolation utilisant le vide de manière à supprimer l'utilisation du gaz, tout en maintenant une certaine compacité de la cellule.The present invention aims to provide a medium voltage electrical distribution cell for performing at least the circuit breaker (switch) and disconnector functions by means of insulation technology using the vacuum so as to eliminate the use of gas, while maintaining a certain compactness of the cell.

A cet effet, la présente invention a pour objet une cellule de distribution électrique du genre précédemment mentionné, cette cellule étant caractérisée en ce que les fonctions de passage du courant, d'interruption et de sectionnement de la tension précitées, sont réalisées dans le vide, et en ce qu'il comporte en outre un moyen de séparation supplémentaire placé dans le circuit de raccordement à la terre, ledit moyen étant apte à ajouter un intervalle de sectionnement supplémentaire dans le circuit de terre dans la position de passage du courant et d'interruption du courant et à supprimer cet intervalle de sectionnement supplémentaire en position de sectionnement de la tension entre les deux parties et lors de la mise à la terre de l'une des parties précitées.For this purpose, the subject of the present invention is an electrical distribution cell of the kind mentioned above, this cell being characterized in that the current-passing, interruption and sectioning functions of the above-mentioned voltage are realized in vacuum, and in that it further comprises an additional separation means placed in the ground connection circuit, said means being able to add an additional sectioning gap in the earth circuit in the transit position. current and interruption of the current and to remove this additional sectioning interval in the disconnected position of the voltage between the two parts and during the grounding of one of the aforementioned parts.

Selon une caractéristique particulière, la fonction de mise à la terre précitée est également réalisée dans le vide.According to a particular characteristic, the above grounding function is also performed in a vacuum.

Selon une caractéristique particulière, cette cellule comporte un interrupteur (ou disjoncteur) à trois positions, respectivement une position de passage du courant entre les deux parties, une position d'interruption du courant et de sectionnement de la tension entre les deux parties et une position de mise à la terre, cet interrupteur/disjoncteur étant logé dans une ampoule à vide.According to one particular characteristic, this cell comprises a switch (or circuit breaker) with three positions, respectively a position for passing the current between the two parts, a position for interrupting the current and for disconnecting the voltage between the two parts and a position This switch / circuit breaker is housed in a vacuum interrupter.

Selon une caractéristique particulière, ce moyen de séparation supplémentaire est réalisé à technologie de coupure dans l'air, dans le gaz, dans l'huile ou dans le vide.According to a particular characteristic, this additional separation means is realized with technology of cut in the air, in the gas, in the oil or in the vacuum.

Selon une autre caractéristique, cette ampoule comporte une enveloppe à l'intérieur de laquelle sont montés un premier contact fixe relié électriquement à la première partie précitée de courant, un contact mobile relié électriquement à la seconde partie de circuit précité et un deuxième contact fixe qui fonctionne soit comme écran flottant soit comme contact, et relié électriquement à la masse.According to another characteristic, this bulb comprises an envelope inside which are mounted a first fixed contact electrically connected to the aforesaid first portion of current, a movable contact electrically connected to the aforementioned second circuit part and a second fixed contact which works either as a floating screen or as a contact, and electrically connected to ground.

Selon une autre caractéristique, le moyen de séparation supplémentaire comporte un aiguilleur permettant de relier ou non le second contact fixe à la masse.According to another feature, the additional separation means comprises a switch to connect or not the second fixed contact to ground.

Selon une autre caractéristique, la première partie de circuit précitée est un jeu de barre tandis que la seconde partie de circuit précitée est un câble.According to another feature, the aforementioned first circuit portion is a busbar while the second circuit portion is a cable.

Selon une autre caractéristique, le second contact fixe est situé sensiblement au centre de l'ampoule.According to another characteristic, the second fixed contact is located substantially in the center of the bulb.

Selon une autre caractéristique, cette cellule comporte un moyen de détection du courant de fuite dans l'(les) ampoule(s). Ceci permet de détecter une perte de vide, de faire un diagnostique du niveau de vide, ou encore de diagnostiquer une perte d'étanchéité de l'ampoule.According to another characteristic, this cell comprises means for detecting the leakage current in the bulb (s). This makes it possible to detect a loss of vacuum, to make a diagnosis of the vacuum level, or to diagnose a loss of tightness of the bulb.

Selon une autre caractéristique, ce moyen comporte un moyen de mesure en continu de la tension ou du courant traversant le second contact fixe.According to another characteristic, this means comprises means for continuously measuring the voltage or current flowing through the second fixed contact.

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 représentation schématique d'une cellule de distribution moyenne tension selon l'invention,
  • Les figures 2 à 5 illustrent, dans une vue en coupe, une cellule de distribution selon une réalisation particulière de l'invention, respectivement dans une position fermée permettant le passage du courant, dans une position d'ouverture suite à une coupure, dans une position de sectionnement, et dans une position de mise à la terre.
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 schematic representation of a medium voltage distribution cell according to the invention,
  • The Figures 2 to 5 illustrate, in a cross-sectional view, a distribution cell according to a particular embodiment of the invention, respectively in a closed position allowing the passage of the current, in an open position following a cutoff, in a sectioning position, and in a grounding position.

Sur les figures 1 à 5, est illustrée une cellule de distribution moyenne tension C selon l'invention, destinée à être placée entre un jeu de barres 1 et un câble 2 pour assurer entre ces deux éléments, soit le passage du courant (position a sur la figure 1), soit une interruption du courant suite à une coupure, soit un sectionnement de la tension (b), soit une mise à la terre du(des) câbles (position c).
Cette cellule C comporte une ampoule à vide A et un circuit de raccordement 3 à la terre T comportant un sectionneur à air (ou aiguilleur) 4.
Cette ampoule A loge un disjoncteur 5 pouvant prendre trois positions différentes à savoir une position de service (tel qu'illustré sur la figure 2) permettant le passage du courant de service, une position ouverte suite à une coupure du courant (figure 3), une position de sectionnement (fig.4) et une position de mise à la terre (fig.5).
L'aiguilleur 4 peut prendre deux positions (e,f sur la figure 1), à savoir une première position e dans laquelle il relie électriquement le point de raccordement R à la terre de l'ampoule, à la masse T, et une position (f) dans laquelle il interpose entre ce point de raccordement R et la masse T, un intervalle de sectionnement supplémentaire I.
Tel qu'illustré sur les figures 2 à 5, l'ampoule précitée A comporte une enceinte 6 de forme sensiblement cylindrique remplie de vide et logeant un premier contact fixe 7 relié électriquement au jeu de barres, un contact mobile 8 relié électriquement au câble et un second contact fixe 9 relié électriquement par l'intermédiaire du point de raccordement R précité à l'aiguilleur précité 4, ledit aiguilleur étant apte à relier le point de raccordement précité R à la terre T.
Le fonctionnement de la cellule de distribution précitée va être décrit dans ce qui suit en référence aux figures.
Dans la position illustrée sur la figure 2, ou position de service, l'ampoule A est en position fermée pour permettre le passage du courant de service. L'aiguilleur 4 est en position ouverte. Dans la position illustrée sur la figure 3, le premier contact fixe 7 et le contact mobile 8 sont séparés, le passage du courant est donc interrompu. Le passage de la position a à la position b (figure 1) correspond à une ouverture du circuit électrique associée à une coupure du courant. L'utilisation de l'ampoule A dans ces deux positions est classique. Le second contact fixe 9 à l'intérieur de l'ampoule A se comporte comme un écran flottant. Le fait que cet écran est flottant facilite la tenue diélectrique lors de la phase de coupure en diminuant les risques de claquage diélectrique. Sur la figure 4, la cellule est dans la position dite de sectionnement. La fermeture de l'aiguilleur 4 a été réalisée, entraînant la mise à la terre du deuxième contact fixe 9. En conséquence, le champ électrique à l'intérieur de l'ampoule change de manière drastique. Une barrière virtuelle empêche désormais des amorçages directs entre les contacts. L'ampoule fonctionne alors comme un sectionneur. L'aiguilleur de mise à la terre en position fermée renforce la fonction sectionnement dans l'ampoule.
Sur la figure 5, le contact mobile 8 a été amené en contact avec le deuxième contact fixe 9 de l'ampoule A. La cellule est alors dans la position de mise à la terre. La technologie vide permet de réaliser d'une manière fiable le pouvoir de fermeture.On the Figures 1 to 5 , is illustrated a medium voltage distribution cell C according to the invention, intended to be placed between a busbar 1 and a cable 2 to ensure between these two elements, or the passage of the current (position a on the figure 1 ), either an interruption of the current following a cut, or a disconnection of the voltage (b), or an earthing of the (of) cables (position c).
This cell C comprises a vacuum interrupter A and a connection circuit 3 to earth T comprising an air switch (or switch) 4.
This bulb A houses a circuit breaker 5 which can take three different positions, namely a service position (as shown in FIG. figure 2 ) allowing the passage of the current of service, an open position following a power failure ( figure 3 ), a sectioning position ( fig.4 ) and a grounding position ( fig.5 ).
The switcher 4 can take two positions (e, f on the figure 1 ), namely a first position e in which it electrically connects the connection point R to the earth of the bulb, to the ground T, and a position (f) in which it interposes between this connection point R and the ground T, an additional sectioning interval I.
As illustrated on Figures 2 to 5 , said bulb A comprises an enclosure 6 of substantially cylindrical shape filled with vacuum and housing a first fixed contact 7 electrically connected to the busbar, a movable contact 8 electrically connected to the cable and a second fixed contact 9 electrically connected by the intermediate of the aforementioned connection point R at the aforementioned switch 4, said switch being able to connect the aforementioned connection point R to T.
The operation of the aforementioned distribution cell will be described in the following with reference to the figures.
In the position illustrated on the figure 2 , or service position, the bulb A is in the closed position to allow the passage of the service current. The switch 4 is in the open position. In the position illustrated on the figure 3 , the first fixed contact 7 and the movable contact 8 are separated, the passage of the current is interrupted. The transition from position a to position b ( figure 1 ) corresponds to an opening of the electric circuit associated with a power failure. The use of bulb A in these two positions is conventional. The second fixed contact 9 inside the bulb A behaves like a floating screen. The fact that this screen is floating facilitates the dielectric strength during the cutoff phase by reducing the risk of dielectric breakdown. On the figure 4 the cell is in the so-called sectioning position. The closing of the switch 4 has been achieved, causing the grounding of the second fixed contact 9. As a result, the electric field inside the bulb changes drastically. A virtual barrier now prevents direct boots between contacts. The bulb then functions as a disconnector. The earthing switch in the closed position strengthens the sectioning function in the bulb.
On the figure 5 the moving contact 8 has been brought into contact with the second fixed contact 9 of the bulb A. The cell is then in the grounding position. Empty technology makes it possible to reliably achieve the closing power.

On a donc réalisé grâce à l'invention, une cellule de distribution moyenne tension présentant un circuit court et un circuit de mise à la terre simple, d'où un encombrement réduit, le tout en utilisant le plus possible la technologie du vide.
Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple.
C'est ainsi par exemple que l'appareil de coupure réalisant l'interruption du courant à l'intérieur de l'ampoule peut être un interrupteur ou bien un disjoncteur. De même, au lieu d'être placée dans une seule et même ampoule, les différentes fonctions peuvent être placées dans des ampoules différentes, une pour chaque fonction.It has therefore been achieved through the invention, a medium voltage distribution cell having a short circuit and a simple grounding circuit, resulting in a small footprint, while using as much as possible the vacuum technology.
Of course, the invention is not limited to the embodiment described and illustrated which has been given by way of example.
For example, the switchgear making the interruption of the current inside the bulb can be a switch or a circuit breaker. Similarly, instead of being placed in one and the same bulb, the different functions can be placed in different bulbs, one for each function.

Au contraire, l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont réalisées suivant son esprit.On the contrary, the invention comprises all the technical equivalents of the means described and their combinations if they are carried out according to its spirit.

Claims (10)

Cellule de distribution électrique moyenne tension destinée à être interposée entre deux parties d'un circuit électrique de manière à assurer les fonctions respectivement de passage du courant entre les deux parties, d'interruption du courant entre les deux parties, de sectionnement de la tension entre les deux parties et de mise à la terre de l'une des parties dudit circuit,
caractérisée en ce que les fonctions de passage du courant (a), d'interruption et de sectionnement de la tension (b) précitées, sont réalisées dans le vide, et en ce qu'il comporte en outre un moyen de séparation supplémentaire (4) placé dans le circuit de raccordement à la terre (3), ledit moyen étant apte à ajouter un intervalle de sectionnement supplémentaire I dans le circuit de terre (3) dans la position de passage du courant et d'interruption du courant, et à supprimer cet intervalle de sectionnement supplémentaire I en position de sectionnement de la tension entre les deux parties et lors de la mise à la terre de l'une (2) des parties précitées.Medium-voltage electrical distribution cell intended to be interposed between two parts of an electrical circuit so as to provide the functions respectively of current flow between the two parts, of interruption of the current between the two parts, of disconnection of the voltage between both parts and grounding one of the parts of said circuit,
characterized in that said current (a), interrupting and sectioning functions of the above-mentioned voltage (b) are carried out in a vacuum, and in that it further comprises additional separation means (4). ) disposed in the earth connection circuit (3), said means being adapted to add an additional sectioning gap I in the earth circuit (3) in the current flow and current interruption position, and remove this additional sectioning interval I in the disconnected position of the voltage between the two parts and during the grounding of one (2) of the aforementioned parts. Cellule de distribution selon la revendication 1, caractérisée en ce que la fonction de mise à la terre (c) est également réalisée dans le vide.Dispensing cell according to Claim 1, characterized in that the earthing function (c) is also carried out in a vacuum. Cellule de distribution électrique selon la revendication 1 ou 2, caractérisée en ce qu'elle comporte un interrupteur (ou disjoncteur) à trois positions (5), respectivement une position de passage du courant entre les deux parties (1 et 2), une position d'interruption du courant et de sectionnement de la tension entre les deux parties et une position de mise à la terre, cet interrupteur/disjoncteur (5) étant logé dans une ampoule à vide A.Electrical distribution cell according to claim 1 or 2, characterized in that it comprises a switch (or circuit breaker) with three positions (5), respectively a current-passing position between the two parts (1 and 2), a position interrupting the current and disconnecting the voltage between the two parts and a grounding position, this switch / circuit breaker (5) being housed in a vacuum interrupter A. Cellule de distribution électrique selon l'une quelconque des revendications précédentes, caractérisée en ce que ce moyen de séparation supplémentaire (4) est réalisé à technologie de coupure dans l'air, dans le gaz, dans l'huile ou dans le vide.Electrical distribution cell according to any one of the preceding claims, characterized in that this additional separation means (4) is made with a breaking technology in air, in gas, in oil or in vacuum. Cellule de distribution électrique selon la revendication 3, caractérisée en ce que cette ampoule (A) comporte une enveloppe (6) à l'intérieur de laquelle sont montés un premier contact fixe (7) relié électriquement à la première partie précitée de courant (1), un contact mobile (8) relié électriquement à la seconde partie de circuit précité (2) et un deuxième contact fixe (9) qui fonctionne soit comme écran flottant soit comme contact, et relié électriquement à la masse T.Electrical distribution cell according to claim 3, characterized in that this bulb (A) comprises a casing (6) inside which are mounted a first fixed contact (7) electrically connected to the aforesaid first part of current (1), a movable contact (8) electrically connected to said second circuit part (2) and second fixed contact (9) which functions as a floating screen either as contact, and electrically connected to the ground T. Cellule de distribution électrique selon la revendication 5, caractérisée en ce que le moyen de séparation supplémentaire comporte un aiguilleur (4) permettant de relier ou non le second contact fixe (9) à la masse T.Electrical distribution cell according to claim 5, characterized in that the additional separation means comprises a switch (4) for connecting or not the second fixed contact (9) to the ground T. Cellule de distribution électrique selon l'une quelconque des revendications précédentes, caractérisée en ce que la première partie de circuit précitée est un jeu de barre (1) tandis que la seconde partie de circuit précitée est un câble (2).Electrical distribution cell according to any one of the preceding claims, characterized in that the aforementioned first circuit part is a busbar (1) while the second circuit part is a cable (2). Cellule de distribution électrique selon la revendication 5 ou 6, caractérisée en ce que le second contact fixe (9) est situé sensiblement au centre de l'ampoule A.Electrical distribution cell according to claim 5 or 6, characterized in that the second fixed contact (9) is located substantially in the center of the bulb A. Cellule de distribution électrique selon la revendication 3 ou 5, caractérisée en ce qu'elle comporte un moyen de détection du courant de fuite dans l' (les) ampoule(s).Electrical distribution cell according to claim 3 or 5, characterized in that it comprises means for detecting the leakage current in the bulb (s). Cellule de distribution électrique selon les revendications 5 et 9, caractérisée en ce que ce moyen comporte un moyen de mesure en continu de la tension ou du courant traversant le second contact fixe (9).Electrical distribution cell according to claims 5 and 9, characterized in that this means comprises a means for continuously measuring the voltage or current flowing through the second fixed contact (9).
EP09354042A 2008-12-18 2009-10-20 Medium-voltage electric distribution cell Active EP2200060B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0807109A FR2940543A1 (en) 2008-12-18 2008-12-18 MEDIUM VOLTAGE POWER DISTRIBUTION CELL

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EP2200060A1 true EP2200060A1 (en) 2010-06-23
EP2200060B1 EP2200060B1 (en) 2011-08-10

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AT (1) ATE520138T1 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012072181A1 (en) * 2010-11-30 2012-06-07 Maschinenfabrik Reinhausen Gmbh Tap changer and vacuum interrupter for a tap changer of this kind

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WO2001099132A1 (en) * 2000-06-23 2001-12-27 Siemens Aktiengesellschaft Vacuum interrupter with two contact systems
JP2003308767A (en) * 2002-04-12 2003-10-31 Toshiba Corp Vacuum switch

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Publication number Priority date Publication date Assignee Title
NL154369B (en) * 1973-12-21 1977-08-15 Hazemeijer Bv ELECTRICAL HIGH VOLTAGE SWITCH WITH TWO SWITCHING RANKS CONNECTED IN SERIES.
US6144005A (en) * 1997-07-23 2000-11-07 Hitachi, Ltd. Vacuum switch and a vacuum switchgear using the same

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Publication number Priority date Publication date Assignee Title
WO2001099132A1 (en) * 2000-06-23 2001-12-27 Siemens Aktiengesellschaft Vacuum interrupter with two contact systems
JP2003308767A (en) * 2002-04-12 2003-10-31 Toshiba Corp Vacuum switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012072181A1 (en) * 2010-11-30 2012-06-07 Maschinenfabrik Reinhausen Gmbh Tap changer and vacuum interrupter for a tap changer of this kind
US9607781B2 (en) 2010-11-30 2017-03-28 Siemens Aktiengesellschaft Tap changer and vacuum interrupter for a tap changer of this kind

Also Published As

Publication number Publication date
EP2200060B1 (en) 2011-08-10
ES2368610T3 (en) 2011-11-18
CN101752799B (en) 2015-01-21
FR2940543A1 (en) 2010-06-25
CN101752799A (en) 2010-06-23
ATE520138T1 (en) 2011-08-15

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