EP0721197B1 - Circuit breaker with two interrupting units per phase - Google Patents

Circuit breaker with two interrupting units per phase Download PDF

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Publication number
EP0721197B1
EP0721197B1 EP96400006A EP96400006A EP0721197B1 EP 0721197 B1 EP0721197 B1 EP 0721197B1 EP 96400006 A EP96400006 A EP 96400006A EP 96400006 A EP96400006 A EP 96400006A EP 0721197 B1 EP0721197 B1 EP 0721197B1
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EP
European Patent Office
Prior art keywords
mobile
semi
chambers
chamber
moving assembly
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.)
Expired - Lifetime
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EP96400006A
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German (de)
French (fr)
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EP0721197A1 (en
Inventor
Michel Perret
Denis Dufournet
Joseph Martin
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Grid Solutions SAS
Original Assignee
GEC Alsthom T&D SA
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Publication date
Priority claimed from FR9500114A external-priority patent/FR2729250A1/en
Priority claimed from FR9505852A external-priority patent/FR2734399B1/en
Application filed by GEC Alsthom T&D SA filed Critical GEC Alsthom T&D SA
Publication of EP0721197A1 publication Critical patent/EP0721197A1/en
Application granted granted Critical
Publication of EP0721197B1 publication Critical patent/EP0721197B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H2033/028—Details the cooperating contacts being both actuated simultaneously in opposite directions

Definitions

  • the present invention relates to a circuit breaker with two break chambers per pole, arranged in T or V.
  • An object of the present invention is to achieve such circuit breaker in which the operating energy is reduced, so the cost of the device with its control is reduced.
  • a circuit breaker according to the preamble of claim 1 is known from document GB-A-1,590,833.
  • circuit breakers with two breaking chambers usually finds a fixed part, including main contacts, arcing contacts and a piston blowing, and a movable part comprising contacts fixed and mobile and a blowing cylinder.
  • the piston is placed on the movable part, the cylinder then being fixed.
  • the moving part is set movement, when triggered or engaged, to using rods connected by connecting rods to a rod maneuver set in motion by a control placed at the base of the column supporting the two breaking chambers.
  • the triggering maneuver energy is proportional to the mass of the moving parts and to the square of the relative speed of contact separation. This last is imposed mainly by the characteristics of the current to be cut and by the pressure of the insulating gas.
  • the energy of the control can be reduced by reducing the mass of moving parts, but these reductions are necessarily limited by the need to have a device robust and reliable.
  • the idea behind the present invention is that the energy can be reduced if the speed is halved trigger, communicating simultaneously to the whole mobile and the so-called “fixed” assembly, the same speed equal to half the relative speed of contact separation mentioned above.
  • Another object of the invention is to house the balancing capacitors economically, by removing conventional insulating columns.
  • the idea that underlying the solution to this problem is to realize the rods connecting the semi-mobile assembly from one room to the movable element of the other chamber according to tubes inside which are placed elements of capacitors.
  • the invention therefore relates to a circuit breaker according to claim 1.
  • the semi-mobile assembly of each of the chambers is connected by a rod to the mobile assembly of the other bedroom.
  • said rod comprises a tube enclosing elements of capacitors arranged in series and constituting a capacitor whose ends are connected respectively to the semi-mobile element of a room and to the moving element of the other chamber.
  • Figure 1 shows a pole of a two-circuit breaker T-cut chambers.
  • a three-phase circuit breaker will include three identical poles.
  • Chamber 1 includes an insulating envelope 10, for ceramic example, fixed at one end to the casing 4 and closed at the other end by a flange 11 constituting an outlet.
  • the cylinder 14 cooperates with a metal piston 24 disposed at the end of a cylindrical piece 25 fixed to the metal flange 4. Electrical contacts 26 provide the flow of current between the cylinder 14 and the cylinder 25.
  • the mobile assembly is driven by a connecting rod 30 connected by a connecting rod 31 to an operating rod 32 actuated by the control placed at the base of column 3.
  • Circuit breaker opening is ensured by a displacement from top to bottom of the rod 32 under the action of the circuit breaker control.
  • the semi-mobile assemblies are subject to perform movements simultaneous, at a speed of equal module and opposite direction to that of mobile assemblies.
  • this is obtained by joining the mobile assembly 12-13-14 from bedroom 1 to the assembly semi-mobile 17'-18 'from chamber 1', and the semi-mobile assembly 17-18 from room 1 to the mobile assembly 12'-13'-14 ' from bedroom 1 '.
  • the semi-mobile assembly 17-18 is connected to the mobile assembly 12'-13'-14 'by insulating rods 41A-41B and 42A-42B.
  • the rods are made of two parts assembled in the housing by a coupling such as 43; the rods 41A and 42A are connected by a axial rod 44 passing through a slot 45 in the cylinder 20. These rods pass through the wall of the casing by openings 46 and 46 'of the housing.
  • Rods 41B and 42B cross the casing and are fixed at two points diametrically opposite of the cylinder 14 '.
  • the tube 42A is made of insulating material and we have placed inside it a plurality of pellets 60 which are as many capacitive elements in series.
  • Tube 42B is made of metal.
  • Tightening is carried out using a metal screw 61 passing through the axial rod 44 and a spring 62 bearing on a metal block 63 welded inside the tube 42B.
  • the electrical contact between the end 60B of stacking and block 63 can be improved by means of a metallic braid 64.
  • the electrical and mechanical connection between the tube 42B and the movable assembly 14 ' is provided at by means of a pin 65.
  • the electrical connection between the 60A end of the stacking and the semi-mobile assembly 17 is carried out thanks to the axial rod 44.
  • voltage distribution in the absence balancing capacitors, is around 70% -30%.
  • This improvement avoids oversizing bedrooms.
  • Fume hoods such as hoods 70 and 71 can be provided, to smooth the potential curves to vicinity of the junction between the rods and the elements semi-mobile and mobile.
  • the invention is not limited to the embodiment described and shown, and can be applied, for example, to circuit breakers with two V-shaped chambers for each pole.

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  • Circuit Breakers (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Arc Welding Control (AREA)
  • Knives (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The circuit breaker has two identical chambers of each pole, each having a ceramic enclosure (10,10') containing mobile and semi-mobile main contacts (12,17). The mobile main contact (12) is integral with a moving arc contact, a blowout cylinder (14) and a nozzle (15). A semi-mobile arc contact (18) is guided within a metallic cylinder (20). The mobile assembly is driven by a push-rod connected by levers (31) to an actuating rod (32) operated by a control at the foot of the insulating column (3). It is coupled to the semi-mobile assembly by insulating rods (e.g. 41A,42A;51A,52A) jointed (43,53) in the central casing (4). These ensure that the semi-mobile assemblies move at the same speed as the mobile ones and in the opposite direction.

Description

La présente invention est relative à un disjoncteur à deux chambres de coupure par pôles, disposées en T ou en V.The present invention relates to a circuit breaker with two break chambers per pole, arranged in T or V.

Un but de la présente invention est de réaliser un tel disjoncteur dans lequel l'énergie de manoeuvre est réduite, de sorte que le côut de l'appareil avec sa commande est réduit.An object of the present invention is to achieve such circuit breaker in which the operating energy is reduced, so the cost of the device with its control is reduced.

Un disjoncteur selon le préambule de la revendication 1 est connu de document GB-A-1 590 833.A circuit breaker according to the preamble of claim 1 is known from document GB-A-1,590,833.

Dans les disjoncteurs à deux chambres de coupure, on trouve habituellement une partie fixe, comprenant des contacts principaux, des contacts d'arc et un piston de soufflage, et une partie mobile comprenant des contacts fixes et mobiles et un cylindre de soufflage. On notera qu'en variante le piston est placé sur la partie mobile, le cylindre étant alors fixe. La partie mobile est mise en mouvement, lors d'un déclenchement ou d'un enclenchement, à l'aide de tringles reliées par un embiellage à une tige de manoeuvre mise en mouvement par une commande placée à la base de la colonne supportant les deux chambres de coupure.In circuit breakers with two breaking chambers, usually finds a fixed part, including main contacts, arcing contacts and a piston blowing, and a movable part comprising contacts fixed and mobile and a blowing cylinder. We will note as a variant, the piston is placed on the movable part, the cylinder then being fixed. The moving part is set movement, when triggered or engaged, to using rods connected by connecting rods to a rod maneuver set in motion by a control placed at the base of the column supporting the two breaking chambers.

L'énergie de manoeuvre de déclenchement est proportionnelle à la masse des pièces mobiles et au carré de la vitesse relative de séparation des contacts. Cette dernière est imposée principalement par les caractéristiques du courant à couper et par la pression du gaz d'isolement. On peut réduire l'énergie de la commande en réduisant la masse des pièces en mouvement, mais ces réductions sont nécessairement limitées par la nécessité d'avoir un appareil robuste et fiable.The triggering maneuver energy is proportional to the mass of the moving parts and to the square of the relative speed of contact separation. This last is imposed mainly by the characteristics of the current to be cut and by the pressure of the insulating gas. The energy of the control can be reduced by reducing the mass of moving parts, but these reductions are necessarily limited by the need to have a device robust and reliable.

L'idée qui préside à la présente invention est que l'énergie peut être réduite si on divise par deux la vitesse de déclenchement, en communiquant simultanément à l'ensemble mobile et à l'ensemble dit "fixe", une même vitesse égale à la moitié de la vitesse relative de séparation des contacts mentionnée plus haut. On comprend alors qu'il faut rendre "semi-mobile", dans chacune des chambres de coupure, l'ensemble habituellement fixe, et doter l'ensemble mobile et l'ensemble semi-mobile de moyens pour être, au déclenchement, entraínés en sens inverse avec des vitesses opposées.The idea behind the present invention is that the energy can be reduced if the speed is halved trigger, communicating simultaneously to the whole mobile and the so-called "fixed" assembly, the same speed equal to half the relative speed of contact separation mentioned above. We understand then that we must give back "semi-mobile", in each of the switching chambers, the assembly usually fixed, and equip the movable assembly and the semi-mobile set of means to be, at tripping, driven in reverse with gears opposed.

On sait que la tension aux bornes de chacune des chambres du pôle n'est généralement pas égale à la moitié de la tension totale de la ligne. On trouve le plus souvent une répartition de tension voisine de 70% et 30% de la tension de la ligne; pour éviter d'avoir à surdimensionner les chambres afin de permettre la coupure de tensions supérieures à la moitié de la tension de ligne, il est bien connu de disposer, en parallèle sur chaque chambre de coupure, des condensateurs de répartition de tension, appelés condensateurs d'équilibrage. Ces condensateurs sont généralement placés dans des colonnes céramiques disposées au-dessus des chambres de coupure. Ces colonnes sont coûteuses.We know that the voltage across each of the pole chambers is generally not equal to half of the total line tension. We most often find a voltage distribution close to 70% and 30% of the voltage of the line; to avoid having to oversize the chambers in order to allow the cutting of tensions greater than half the line voltage, it is fine known to have, in parallel on each chamber of cutoff, voltage distribution capacitors, called balancing capacitors. These capacitors are generally placed in ceramic columns arranged above the switching chambers. These columns are costly.

Un autre but de l'invention est de loger les condensateurs d'équilibrage de manière économique, en supprimant les colonnes isolantes classiques. L'idée qui sous-tend la solution à ce problème est de réaliser les tringles reliant l'ensemble semi-mobile d'une chambre à l'élément mobile de l'autre chambre selon des tubes à l'intérieur desquels sont placés des éléments de condensateurs.Another object of the invention is to house the balancing capacitors economically, by removing conventional insulating columns. The idea that underlying the solution to this problem is to realize the rods connecting the semi-mobile assembly from one room to the movable element of the other chamber according to tubes inside which are placed elements of capacitors.

L'invention a donc pour objet un disjoncteur selon la revendication 1. The invention therefore relates to a circuit breaker according to claim 1.

Dans un mode particulier de mise en oeuvre de l'invention, l'ensemble semi-mobile de chacune des chambres est reliée par une tringle à l'ensemble mobile de l'autre chambre.In a particular mode of implementation of the invention, the semi-mobile assembly of each of the chambers is connected by a rod to the mobile assembly of the other bedroom.

Avantageusement, la ladite tringle comporte un tube enfermant des éléments de condensateurs disposés en série et constituant un condensateur dont les extrémités sont reliées respectivement à l'élément semi-mobile d'une chambre et à l'élément mobile de l'autre chambre.Advantageously, said rod comprises a tube enclosing elements of capacitors arranged in series and constituting a capacitor whose ends are connected respectively to the semi-mobile element of a room and to the moving element of the other chamber.

L'invention sera bien comprise à la lecture de la description d'un exemple de réalisation de l'invention, en déférence au dessin annexé dans lequel:

  • la figure 1 est une vue en élévation d'un pôle de disjoncteur à deux chambres de coupure en T,
  • la figure 2 est une vue partielle en coupe axiale partielle des chambres de coupure du pôle, le disjoncteur étant en position enclenchée,
  • la figure 3 est une vue partielle en coupe axiale partielle des chambres de coupure du pôle, le disjoncteur étant en position déclenchée,
  • la figure 4 est une vue en coupe axiale, à une échelle agrandie, d'une chambre de coupure du pôle, en coupe axiale d'un disjoncteur à deux chambres de coupure en T,
  • les figures 5, 6 et 7 sont des vues en coupe respectivement selon les lignes V-V, VI-VI et VII-VII de la figure 4
  • la figure 8 est une vue en coupe d'une tringle enfermant des éléments capacitifs.
The invention will be clearly understood on reading the description of an exemplary embodiment of the invention, with reference to the appended drawing in which:
  • FIG. 1 is an elevation view of a circuit breaker pole with two T-shaped breaking chambers,
  • FIG. 2 is a partial view in partial axial section of the pole breaking chambers, the circuit breaker being in the engaged position,
  • FIG. 3 is a partial view in partial axial section of the pole breaking chambers, the circuit breaker being in the tripped position,
  • FIG. 4 is a view in axial section, on an enlarged scale, of a pole breaking chamber, in axial section of a circuit breaker with two T-shaped breaking chambers,
  • Figures 5, 6 and 7 are sectional views respectively along the lines VV, VI-VI and VII-VII of Figure 4
  • Figure 8 is a sectional view of a rod enclosing capacitive elements.

La figure 1 montre un pôle d'un disjoncteur à deux chambres de coupure en T. Un disjoncteur triphasé comprendra trois pôles identiques.Figure 1 shows a pole of a two-circuit breaker T-cut chambers. A three-phase circuit breaker will include three identical poles.

On distingue dans la figure 1 deux chambres de coupure 1 et 1' disposées au sommet d'une colonne isolante 3. Les chambres sont reliées à la colonne par un carter métallique 4. A la base de la colonne, on trouve une commande 2 pour la manoeuvre du pôle.We distinguish in Figure 1 two interrupting chambers 1 and 1 'arranged at the top of an insulating column 3. The chambers are connected to the column by a metal casing 4. At the base of the column, there is a command 2 for the pole maneuver.

On se référera maintenant aux figures 2 à 4.We will now refer to Figures 2 to 4.

Les deux chambres du pôle étant identiques, seule la chambre 1 sera décrite en détail, les éléments correspondants de la chambre 1' recevant les mêmes numéros de référence dotés du signe "prime" ( ' ).The two chambers of the pole being identical, only the bedroom 1 will be described in detail, the elements correspondents in room 1 'receiving the same numbers with the sign "prime" (').

La chambre 1 comprend une enveloppe isolante 10, par exemple en céramique, fixée par une extrémité au carter 4 et fermée à l'autre extrémité par un flasque 11 constituant une prise de courant.Chamber 1 includes an insulating envelope 10, for ceramic example, fixed at one end to the casing 4 and closed at the other end by a flange 11 constituting an outlet.

La chambre comprend:

  • un contact principal mobile 12, solidaire d'un contact d'arc mobile 13, d'un cylindre de soufflage 14 et d'une buse de soufflage 15,
  • un contact principal semi-mobile 17 solidaire d'un contact d'arc semi-mobile. Le contact d'arc semi-mobile 18 est guidé dans un cylindre métallique 20 solidaire du flasque 11. Des contacts électriques 21 assurent le passage du courant entre les contacts semi-mobiles et la prise de courant 11.
The room includes:
  • a movable main contact 12, integral with a movable arcing contact 13, with a blowing cylinder 14 and with a blowing nozzle 15,
  • a semi-mobile main contact 17 secured to a semi-mobile arcing contact. The semi-mobile arcing contact 18 is guided in a metal cylinder 20 integral with the flange 11. Electrical contacts 21 ensure the passage of current between the semi-mobile contacts and the socket 11.

Le cylindre 14 coopère avec un piston métallique 24 disposé à l'extrémité d'une pièce cylindrique 25 fixée au flasque métallique 4. Des contacts électriques 26 assurent le passage du courant entre le cylindre 14 et le cylindre 25.The cylinder 14 cooperates with a metal piston 24 disposed at the end of a cylindrical piece 25 fixed to the metal flange 4. Electrical contacts 26 provide the flow of current between the cylinder 14 and the cylinder 25.

L'ensemble mobile est entraíné par une bielle 30 reliée par un embiellage 31 à une tringle de manoeuvre 32 actionnée par la commande placée à la base de la colonne 3.The mobile assembly is driven by a connecting rod 30 connected by a connecting rod 31 to an operating rod 32 actuated by the control placed at the base of column 3.

Lorsque le disjoncteur est fermé, le courant circule entre le flasque 11, le cylindre 20, les contacts 21, le contact semi-mobile 17, le contact mobile 12, le cylindre 14, les contacts 26, le cylindre 25, le flasque 4, le cylindre 25', les contacts 26', le cylindre 14', le contact mobile 12', le contact semi-mobile 17', les contacts 21', le cylindre 20' et le flasque 11'. When the circuit breaker is closed, current flows between the flange 11, the cylinder 20, the contacts 21, the semi-mobile contact 17, mobile contact 12, the cylinder 14, the contacts 26, the cylinder 25, the flange 4, the 25 'cylinder, 26' contacts, 14 'cylinder, contact mobile 12 ', semi-mobile contact 17', contacts 21 ', cylinder 20 'and the flange 11'.

L'ouverture (déclenchement) du disjoncteur est assurée par un déplacement de haut en bas de la tringle 32 sous l'action de la commande du disjoncteur. Les ensembles mobiles 12-13-14 et 12'-13'-14' se déplacent simultanément dans un mouvement tendant à les rapprocher.Circuit breaker opening (tripping) is ensured by a displacement from top to bottom of the rod 32 under the action of the circuit breaker control. Sets mobile 12-13-14 and 12'-13'-14 'move simultaneously in a movement tending to bring them together.

Selon le principe de l'invention, les ensembles semi-mobiles sont assujettis à effectuer des mouvements simultanés, à une vitesse de module égal et de sens opposé à celle des ensembles mobiles. Dans l'exemple de réalisation décrit et représenté, ceci est obtenu en solidarisant l'ensemble mobile 12-13-14 de la chambre 1 à l'ensemble semi-mobile 17'-18' de la chambre 1', et l'ensemble semi-mobile 17-18 de la chambre 1 à l'ensemble mobile 12'-13'-14' de la chambre 1'.According to the principle of the invention, the semi-mobile assemblies are subject to perform movements simultaneous, at a speed of equal module and opposite direction to that of mobile assemblies. In the example of realization described and represented, this is obtained by joining the mobile assembly 12-13-14 from bedroom 1 to the assembly semi-mobile 17'-18 'from chamber 1', and the semi-mobile assembly 17-18 from room 1 to the mobile assembly 12'-13'-14 ' from bedroom 1 '.

Ceci est réalisé au moyen de tringles isolantes. Ainsi l'ensemble semi-mobile 17-18 est relié à l'ensemble mobile 12'-13'-14' par des tringles isolantes 41A-41B et 42A-42B. Pour faciliter le montage, les tringles sont réalisées en deux parties assemblées dans le carter par un accouplement tel que 43; les tringles 41A et 42A sont reliées par une tige axiale 44 traversant une fente 45 dans le cylindre 20. Ces tringles traversent la paroi du carter par des ouvertures 46 et 46' du carter. Les tringles 41B et 42B traversent le carter et sont fixées à deux points diamétralement opposés du cylindre 14'.This is achieved by means of insulating rods. So the semi-mobile assembly 17-18 is connected to the mobile assembly 12'-13'-14 'by insulating rods 41A-41B and 42A-42B. To facilitate assembly, the rods are made of two parts assembled in the housing by a coupling such as 43; the rods 41A and 42A are connected by a axial rod 44 passing through a slot 45 in the cylinder 20. These rods pass through the wall of the casing by openings 46 and 46 'of the housing. Rods 41B and 42B cross the casing and are fixed at two points diametrically opposite of the cylinder 14 '.

L'ensemble mobile 12-13-14 de la chambre 1 à l'ensemble semi-mobile 17'-18' de la chambre 1' est effectué de manière analogue par des tringles 51A-51B, 52A-52B disposées angulairement à 90 degrés des tringles 41A-41B, 42A-42B.The mobile assembly 12-13-14 from bedroom 1 to the semi-mobile assembly 17'-18 'of the chamber 1' east similarly performed by rods 51A-51B, 52A-52B arranged angularly at 90 degrees from the rods 41A-41B, 42A-42B.

On voit, dans la figure 3, que lors d'une manoeuvre d'ouverture, les ensembles mobile et semi-mobile se déplacent avec des vitesses de module égal et de sens opposé. Grâce à cette disposition, l'énergie de manoeuvre peut être réduite de manière notable. We see in Figure 3 that during a maneuver opening, the mobile and semi-mobile units are move with equal module speeds and direction opposite. Thanks to this arrangement, the maneuvering energy can be reduced significantly.

Grâce à l'invention, en conservant la même vitesse relative de séparation des contacts, on divise par 4 l'énergie cimétique à mettre en oeuvre au déclenchement, si les masses mobiles sont inchangées.Thanks to the invention, keeping the same speed relative contact separation, divide by 4 the cimetic energy to be used on triggering, if the moving masses are unchanged.

Selon la seconde caractéristique de l'invention, on utilise la présence des tiges de liaison pour loger les condensateurs.According to the second characteristic of the invention, one uses the presence of connecting rods to house the capacitors.

On prendra comme exemple la tige 42A-42B, reliant l'ensemble semi-mobile 20 de la chambre de gauche à l'ensemble mobile 14' de la chambre de droite (Fig.8).We will take as an example the rod 42A-42B, connecting the semi-mobile assembly 20 from the left chamber to the mobile assembly 14 'of the right chamber (Fig. 8).

Le tube 42A est réalisé en matériau isolant et on a placé à son intérieur une pluralité de pastilles 60 qui sont autant d'éléments capacitifs en série. Le tube 42B est réalisé en métal.The tube 42A is made of insulating material and we have placed inside it a plurality of pellets 60 which are as many capacitive elements in series. Tube 42B is made of metal.

L'ensemble des éléments capacitifs est serré entre deux plaques métalliques terminales 60A et 60B.All the capacitive elements are clamped between two terminal metal plates 60A and 60B.

Le serrage s'effectue au moyen d'une vis métallique 61 traversant la tige axiale 44 et d'un ressort 62 s'appuyant sur un bloc métallique 63 soudé à l'intérieur du tube 42B.Tightening is carried out using a metal screw 61 passing through the axial rod 44 and a spring 62 bearing on a metal block 63 welded inside the tube 42B.

Le contact électrique entre l'extrémité 60B de l'empilement et le bloc 63 peut être amélioré au moyen d'une tresse métallique 64. La liaison électrique et mécanique entre le tube 42B et l'ensemble mobile 14' est assurée au moyen d'une goupille 65.The electrical contact between the end 60B of stacking and block 63 can be improved by means of a metallic braid 64. The electrical and mechanical connection between the tube 42B and the movable assembly 14 'is provided at by means of a pin 65.

La liaison électrique entre l'extrémité 60A de l'empilement et l'ensemble semi-mobile 17 s'effectue grâce à la tige axiale 44.The electrical connection between the 60A end of the stacking and the semi-mobile assembly 17 is carried out thanks to the axial rod 44.

A titre d'exemple, pour un disjoncteur de 500kV à deux chambres de coupure, la répartition de tension, en l'absence de condensateurs d'équilibrage, est d'environ 70%-30%.For example, for a two-circuit 500kV circuit breaker breaking chambers, voltage distribution, in the absence balancing capacitors, is around 70% -30%.

Avec un condensateur d'environ 120pF en parallèle sur chaque chambre, la répartition serait de 55%-45%.With a capacitor of around 120pF in parallel on each room, the breakdown would be 55% -45%.

Cette amélioration permet d'éviter le surdimensionnement des chambres. This improvement avoids oversizing bedrooms.

Il est possible d'obtenir la valeur de 120pF en munissant chacune des quatre tringles de 16 éléments capacitifs ayant les caractéristiques suivantes:

  • diamètre: 26 millimètres
  • épaisseur: 9 millimètres
  • capacité: 1000pF
  • tenue en tension 15kV
    • It is possible to obtain the value of 120pF by equipping each of the four rods with 16 capacitive elements having the following characteristics:
  • diameter: 26 millimeters
  • thickness: 9 millimeters
  • capacity: 1000pF
  • voltage rating 15kV

    • En garnissant une tringle tubulaire de 16 éléments capacitifs du type précité, on obtient:

    • une longueur de l'empilement égale à: 16 x 9 = 144 millimètres
    • une tenue maximale de tension égale à: 16 x 15kV = 240 kV
    • une capcité égale à: 1000pF: 16 = 62,5 pF
    By filling a tubular rod with 16 capacitive elements of the aforementioned type, we obtain:
    • a length of the stack equal to: 16 x 9 = 144 millimeters
    • a maximum withstand voltage equal to: 16 x 15kV = 240 kV
    • a capacity equal to: 1000pF: 16 = 62.5 pF

    Les quatre tringles étant mises en parallèle deux par deux, chaque couple de tringles a une capacité égale à: 62,5 pF x 2 = 125 pF The four rods being placed in parallel two by two, each pair of rods has a capacity equal to: 62.5 pF x 2 = 125 pF

    On voit donc que le problème de la mise en parallèle sur les chambres de capacités de valeur convenable est résolu de manière sûre, simple et économique.So we see that the problem of paralleling on the rooms of suitable value capacity is solved in a safe, simple and economical way.

    Des capots pare-effluves tels que les capot 70 et 71 peuvent ête prévus, pour lisser les courbes de potensiel au voisinage de la jonction entre les tringles et les éléments semi-mobile et mobile.Fume hoods such as hoods 70 and 71 can be provided, to smooth the potential curves to vicinity of the junction between the rods and the elements semi-mobile and mobile.

    L'invention n'est pas limitée au mode de réalisation décrit et représenté, et peut s'appliquer par exemple, aux disjoncteurs ayant, pour chaque pôle, deux chambres en V.The invention is not limited to the embodiment described and shown, and can be applied, for example, to circuit breakers with two V-shaped chambers for each pole.

    Claims (3)

    1. A circuit-breaker having two interrupting chambers (10, 10') per pole, the two chambers being disposed in a T or V configuration at the end of a column (3) provided at its base with a control system for operating a drive rod (32), each chamber containing a moving assembly (12, 13, 14) connected via a linkage (30, 31) to said drive rod (32), and main contacts (12) and arcing contacts (13), said circuit-breaker being characterized by the fact that each chamber contains a semi-moving assembly (17-18) including main contacts (17) and arcing contacts (18) co-operating respectively with the main contacts (12) and the arcing contacts (13) of the moving assembly, the semi-moving assembly in each of the chambers being connected to the moving assembly of the other chamber so as to be driven at a velocity of equal magnitude and of opposite direction to the velocity of the moving assembly with which it cooperates.
    2. A circuit-breaker according to claim 1, characterized in that the semi-moving assembly (17-18, 17'-18') of each of the chambers (1, 1') is connected via insulating rods (41A-41B, 42A-42B, 51A-51B, 52A-52B) to the moving assembly (12-13-14, 12'-13'-14') of the other chamber.
    3. A circuit-breaker according to claim 2, characterized in that each insulating rod comprises a tube enclosing capacitor elements (60) disposed in series and constituting a capacitor whose ends (60A, 60B) are electrically connected respectively to the semi-moving element (17) of one chamber (1) and to the moving element (14') of the other chamber (1').
    EP96400006A 1995-01-06 1996-01-02 Circuit breaker with two interrupting units per phase Expired - Lifetime EP0721197B1 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    FR9500114A FR2729250A1 (en) 1995-01-06 1995-01-06 Energy-saving circuit-breaker with two breaking chambers per pole
    FR9500114 1995-01-06
    FR9505852 1995-05-17
    FR9505852A FR2734399B1 (en) 1995-05-17 1995-05-17 CIRCUIT BREAKER WITH TWO CUTTING CHAMBERS PER POLE WITH BALANCING CAPACITORS

    Publications (2)

    Publication Number Publication Date
    EP0721197A1 EP0721197A1 (en) 1996-07-10
    EP0721197B1 true EP0721197B1 (en) 2002-03-06

    Family

    ID=26231666

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96400006A Expired - Lifetime EP0721197B1 (en) 1995-01-06 1996-01-02 Circuit breaker with two interrupting units per phase

    Country Status (8)

    Country Link
    US (1) US5668360A (en)
    EP (1) EP0721197B1 (en)
    CN (1) CN1069993C (en)
    AT (1) ATE214199T1 (en)
    BR (1) BR9600040A (en)
    CA (1) CA2166663C (en)
    DE (1) DE69619568T2 (en)
    ES (1) ES2170839T3 (en)

    Families Citing this family (20)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    SE515525C2 (en) * 1996-01-15 2001-08-20 Abb Ab Coupling luminaire intended for high voltage lines
    FR2752086B1 (en) * 1996-07-31 1998-09-11 Gec Alsthom T & D Sa HIGH VOLTAGE CIRCUIT BREAKER WITH DOUBLE MOTION OF CONTACTS AND INSERTION OF RESISTANCE TO CLOSING
    DE19701827A1 (en) * 1997-01-21 1998-07-23 Abb Patent Gmbh Generator switch of 50 kA rating
    US6429393B1 (en) * 1999-11-13 2002-08-06 S&C Electric Co. Current transfer arrangement for circuit interrupter
    JP4521110B2 (en) * 2000-11-08 2010-08-11 株式会社東芝 Combined gas insulated switchgear
    DE50112798D1 (en) * 2001-11-09 2007-09-13 Abb Schweiz Ag Hybrid circuit breaker with a gearbox
    DE102004006061A1 (en) 2004-01-30 2005-08-18 Siemens Ag High-voltage outdoor bushing arrangement
    DE102006023372A1 (en) * 2006-05-16 2007-11-22 Siemens Ag breakers
    FR2922354B1 (en) 2007-10-15 2009-12-11 Areva T & D Sa CIRCUIT BREAKER HAS TWO ALIGNED CUTTING ROOMS, COMMON TRANSMISSION AND REDUCED SIZE
    CN101430989B (en) * 2007-11-06 2010-10-20 中兴电工机械股份有限公司 Balance buffering mechanism used for gas insulation breaker
    US7612309B2 (en) * 2007-11-23 2009-11-03 Chung-Hsin Electric & Machinery Mfg. Corp. Buffering mechanism for gas circuit breaker
    FR2925976B1 (en) * 2008-01-02 2010-01-29 Areva T & D Sa CIRCUIT BREAKER WITH SEVERAL CUTTING ROOMS IN PARALLEL, COMMON TRANSMISSION AND REDUCED LONGITUDINAL DIMENSIONS
    EP2337047B1 (en) * 2009-12-18 2014-07-02 Alstom Grid GmbH Electric high voltage switch and switch position display for same
    FR2965096B1 (en) 2010-09-21 2014-02-07 Areva T & D Sas CIRCUIT BREAKER COMPRISING A RESISTANCE INSERTION DEVICE IN A CURRENT TRANSPORT LINE
    DE102013210136A1 (en) * 2013-05-30 2014-12-04 Siemens Aktiengesellschaft Electrical switching device
    CN103560044A (en) * 2013-10-31 2014-02-05 山东泰开真空开关有限公司 Capacitor bank switching vacuum circuit breaker
    CN104599890B (en) * 2013-11-01 2017-03-01 Ls产电株式会社 The draw bail of the conductor port lid of gas-insulated switchgear
    CN104319168B (en) * 2014-10-09 2017-05-03 河南平高电气股份有限公司 Interrupter assembly and porcelain knob-type sulphur hexafluoride circuit breaker
    DE102017202735A1 (en) 2017-02-21 2018-08-23 Siemens Aktiengesellschaft Electrical switching device
    JP2022515679A (en) * 2018-12-31 2022-02-21 ヒタチ・エナジー・スウィツァーランド・アクチェンゲゼルシャフト Circuit breaker with internal transient recovery voltage capacitor assembly

    Family Cites Families (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CH331003A (en) * 1955-02-16 1958-06-30 Bbc Brown Boveri & Cie Compressed gas switch with multiple interruption
    US3676621A (en) * 1971-05-28 1972-07-11 Allis Chalmers Mfg Co High voltage electrical circuit breaker with preinsertion resistor during closing
    US3896282A (en) * 1973-05-25 1975-07-22 S & C Electric Co High voltage circuit interrupting device
    DE2538130C2 (en) * 1975-08-25 1985-03-28 Siemens AG, 1000 Berlin und 8000 München High voltage switch
    GB1590833A (en) * 1977-11-23 1981-06-10 Northern Eng Ind Drive rod mechanisms for circuit-breakers
    JPS5576526A (en) * 1978-12-01 1980-06-09 Hitachi Ltd Gas breaker
    US4486633A (en) * 1982-08-05 1984-12-04 Westinghouse Electric Corp. High-voltage Y-shaped dead tank circuit interrupter
    CH675175A5 (en) * 1987-10-27 1990-08-31 Bbc Brown Boveri & Cie
    FR2711269B1 (en) * 1993-10-12 1995-12-29 Gec Alsthom T & D Sa High voltage circuit breaker capable of breaking delayed zero crossing fault currents.

    Also Published As

    Publication number Publication date
    BR9600040A (en) 1998-01-27
    CN1069993C (en) 2001-08-22
    CA2166663C (en) 1999-11-30
    EP0721197A1 (en) 1996-07-10
    ATE214199T1 (en) 2002-03-15
    CA2166663A1 (en) 1996-07-07
    ES2170839T3 (en) 2002-08-16
    CN1134595A (en) 1996-10-30
    DE69619568D1 (en) 2002-04-11
    DE69619568T2 (en) 2002-11-21
    US5668360A (en) 1997-09-16

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