EP0398213A1 - Middle high-voltage circuit breaker for high nominal current - Google Patents

Middle high-voltage circuit breaker for high nominal current Download PDF

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Publication number
EP0398213A1
EP0398213A1 EP90109022A EP90109022A EP0398213A1 EP 0398213 A1 EP0398213 A1 EP 0398213A1 EP 90109022 A EP90109022 A EP 90109022A EP 90109022 A EP90109022 A EP 90109022A EP 0398213 A1 EP0398213 A1 EP 0398213A1
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EP
European Patent Office
Prior art keywords
circuit breaker
contact
main
tube
movable
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
EP90109022A
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German (de)
French (fr)
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EP0398213B1 (en
Inventor
Denis Dufournet
Michael Perret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Holdings SA
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GEC Alsthom SA
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Publication date
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Publication of EP0398213A1 publication Critical patent/EP0398213A1/en
Application granted granted Critical
Publication of EP0398213B1 publication Critical patent/EP0398213B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
    • 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
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts

Definitions

  • the present invention relates to a dielectric blast gas circuit breaker and more particularly to a medium voltage circuit breaker, in which a current of high intensity (several thousand amps) flows.
  • This type of circuit breaker is found in power plants, at the output of the alternator and upstream of the step-up transformer.
  • the permanent movable contact through which the permanent current passes, is most often a copper tube of relatively high mass which, when tripped, is driven with the arcing contact, at high speed. .
  • the energy necessary for this maneuver is important since it is proportional to the product of the mass of the moving assembly by the square of the speed of movement of this crew. All manufacturers seek to reduce this operating energy because its importance penalizes the cost price of the control of the switching device.
  • An object of the invention is to provide a circuit breaker in which both the mass and the speed of movement when the movable contact is triggered are reduced compared to those of the contact of the prior art, while maintaining a high speed of movement arcing contacts.
  • the subject of the invention is therefore a dielectric blowing gas circuit breaker comprising a main fixed contact, a main arcing contact and a moving element comprising in particular a movable arcing contact and a blowing means characterized in that it comprises a movable main contact separated from said movable assembly and produced by means of a short cylindrical element associated with a displacement means communicating to it on triggering a speed lower than that of the movable assembly.
  • said element is a tube.
  • said element consists of rods arranged according to certain generatrices of a cylinder.
  • said displacement means is a spring supported by a first end on a fixed stop and by a second end on a stop secured to said tube.
  • the circuit breaker partially represented in FIG. 1, in half-section of axis xx, comprises an insulating envelope 1 delimiting a volume 2 filled with a gas with good dielectric properties such as sulfur hexafluoride (SF6) under a pressure of a few bars.
  • a gas with good dielectric properties such as sulfur hexafluoride (SF6) under a pressure of a few bars.
  • the fixed assembly comprises a fixed main contact consisting of fingers 3 and a fixed arcing contact consisting of a tube 4 having an end 4A of an alloy resistant to the effects of the arc, for example a tungsten-based alloy. Contacts 3 and 4 are connected to a first socket not shown.
  • the fixed assembly further comprises a crown of fingers 6 carried by a crown fixed 7. The fingers 6 carry, internally at the crown, an annular stop 8. The fixed crown is electrically connected to a second socket not shown.
  • the fixed crown 7 carries a tube 9 from machining, of axis xx, which ends with a piston 10, provided with a one-way valve 11, a seal 12 and sliding electrical contacts 13.
  • the moving element comprises an arcing contact consisting of a tube 15, of axis xx, having an end 15A of material resistant to the effects of the arcing.
  • This tube 15 is integral with a coaxial tube 16, with which it defines a blowing cylinder moving around the fixed piston 10.
  • the seal between the piston 10 and the cylinder 16 is ensured by the seal 12; the passage of current between the tube 15 and the piston 10 is ensured by the sliding contacts 13.
  • the tube 16 carries a blowing nozzle made of insulating material.
  • the tubes 15 and 16 are advantageously produced in the same machined part; holes 18, formed in the part connecting the two tubes, make it possible to establish communication between the volume 20 and the volume 21 comprised between the tube 15 and the nozzle 17.
  • the tube 15 is extended by a part 22 connected to an operating rod, not shown. Holes 15B in the tube 15, and 9A in the tube 9, allow, when the circuit breaker opens, the evacuation of the hot gas to the volume 2.
  • the movable main contact is constituted by a short metal cylinder 30 cooperating with the fingers 3 and 6.
  • This cylinder is fixed to the end of a tube 31 terminated by a ring 32.
  • the tube could be replaced by a set of rods arranged according to certain generatrices of a cylinder).
  • a spring 33 bandaged when the circuit breaker is in the engaged position (FIG. 1), is disposed between the annular stop 8 and the ring 32.
  • the circuit breaker works as follows: - in the engaged position ( Figure 1) the current flows through the fingers 3, the tube 30, the fingers 6 and the crown 7. - At the opening of the circuit breaker ( Figure2), the tube 22 is driven at high speed (V2) to the right of the figure.
  • the tube 30 leaves the fingers 3 at a lower speed (V1) which is that given by the energy of the spring 33.
  • a spring has been given as an example of means for implementing the movable arcing contact; another possibility is to use a game of lever linked to the moving assembly and the production of which is well known to those skilled in the art.
  • circuit breakers provided with means for creating a secondary arc which comes to aid in the blowing of the arc and / or in the tripping operation.

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Push-Button Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Relay Circuits (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Organic Insulating Materials (AREA)

Abstract

A dielectric blast gas circuit breaker comprising a main fixed contact, a main arcing contact, and moving equipment including, in particular, a moving arcing contact and blast means, wherein the circuit breaker includes a moving main contact which is disunited from the moving equipment and which is implemented by means of a short cylindrical element associated with means communicating a speed thereto during circuit breaking which is lower than the speed of the moving equipment. The invention is applicable to medium tension circuit breakers having a high nominal current, such as the circuit breakers used in a power station.

Description

La présente invention concerne un disjoncteur à gaz diélectrique de soufflage et plus particulièrement un disjoncteur à moyenne tension, dans lequel circule un courant d'intensité importante (plusieurs milliers d'ampères). Ce type de disjoncteur se rencontre dans les centrales électriques, en sortie d'alternateur et en amont du transformateur élévateur de tension.The present invention relates to a dielectric blast gas circuit breaker and more particularly to a medium voltage circuit breaker, in which a current of high intensity (several thousand amps) flows. This type of circuit breaker is found in power plants, at the output of the alternator and upstream of the step-up transformer.

Dans ce type de disjoncteur, le contact mobile permanent, par lequel transite le courant permanent, est le plus souvent un tube de cuivre de masse relativement élevée qui, lors d'un déclenchement, est entraîné avec le contact d'arc, à grande vitesse. l'énergie nécessaire à cette manoeuvre est importante puisqu'elle est proportionnelle au produit de la masse de l'équipage mobile par le carré de la vitesse de déplacement de cet équipage. Tous les constructeurs cherchent à diminuer cette énergie de manoeuvre car son importance pénalise le prix de revient de la commande de l'appareil de coupure.In this type of circuit breaker, the permanent movable contact, through which the permanent current passes, is most often a copper tube of relatively high mass which, when tripped, is driven with the arcing contact, at high speed. . the energy necessary for this maneuver is important since it is proportional to the product of the mass of the moving assembly by the square of the speed of movement of this crew. All manufacturers seek to reduce this operating energy because its importance penalizes the cost price of the control of the switching device.

Un but de l'invention est de réaliser un disjoncteur dans lequel à la fois la masse et la vitesse de déplacement au déclenchement du contact mobile sont diminués par rapport à celles du contact de l'art antérieur, tout en conservant une vitesse de déplacement élevée des contacts d'arc.An object of the invention is to provide a circuit breaker in which both the mass and the speed of movement when the movable contact is triggered are reduced compared to those of the contact of the prior art, while maintaining a high speed of movement arcing contacts.

Ceci est obtenu en désolidarisant le contact principal mobile de l'équipage mobile et en réalisant le contact principal mobile au moyen d'un élément court associé à un moyen de déplacement lui communiquant au déclenchement une vitesse inférieure à celle dudit équipage mobile.This is obtained by separating the movable main contact from the movable assembly and by making the movable main contact by means of a short element associated with a displacement means communicating to it on triggering a speed lower than that of said movable assembly.

L'invention a ainsi pour objet un disjoncteur à gaz de soufflage diélectrique comprenant un contact fixe principal, un contact d'arc principal et un équipage mobile comprenant notamment un contact d'arc mobile et un moyen de soufflage caractérisé en ce qu'il comprend un contact principal mobile désolidarisé dudit équipage mobile et réalisé au moyen d'un élémen cylindrique court associé à un moyen de déplacement lui communiquant au déclenchement une vitesse inférieure à celle de l'équipage mobile.The subject of the invention is therefore a dielectric blowing gas circuit breaker comprising a main fixed contact, a main arcing contact and a moving element comprising in particular a movable arcing contact and a blowing means characterized in that it comprises a movable main contact separated from said movable assembly and produced by means of a short cylindrical element associated with a displacement means communicating to it on triggering a speed lower than that of the movable assembly.

Dans un premier mode de réalisation ledit élément est un tube.In a first embodiment, said element is a tube.

Dans un autre mode de réalisation, ledit élément est constitué de tiges disposées selon certaines génératrices d'un cylindre.In another embodiment, said element consists of rods arranged according to certain generatrices of a cylinder.

Avantageusement, ledit moyen de déplacement est un ressort s'appuyant par une première extrémité sur une butée fixe et par une seconde extrémité sur une butée solidaire dudit tube.Advantageously, said displacement means is a spring supported by a first end on a fixed stop and by a second end on a stop secured to said tube.

L' invention sera bien comprise par la description donnée ci-après d'un mode préféré de réalisation, en référence au dessin annexé dans lequel:

  • - la figure 1 est une vue schématique partielle en demi-coupe axiale d'un disjoncteur selon l'invention, en position enclenchée,
  • - la figure 2 est une vue schématique partielle en demi-coupe axiale du même disjoncteur en cours de déclenchement.
The invention will be clearly understood from the description given below of a preferred embodiment, with reference to the appended drawing in which:
  • FIG. 1 is a partial schematic view in axial half-section of a circuit breaker according to the invention, in the engaged position,
  • - Figure 2 is a partial schematic view in axial half-section of the same circuit breaker during tripping.

Le disjoncteur représenté partiellement dans la figure 1, en demi-coupe d'axe xx, comprend une enveloppe isolante 1 délimitant un volume 2 rempli d'un gaz à bonnes propriétés diélectriques tel que l'hexafluorure de soufre (SF6) sous une pression de quelques bars.The circuit breaker partially represented in FIG. 1, in half-section of axis xx, comprises an insulating envelope 1 delimiting a volume 2 filled with a gas with good dielectric properties such as sulfur hexafluoride (SF6) under a pressure of a few bars.

L'ensemble fixe comprend un contact principal fixe constitué de doigts 3 et un contact d'arc fixe constitué d'un tube 4 ayant une extrémité 4A en alliage résistant aux effets de l'arc, par exemple un alliage à base de tungstène. Les contacts 3 et 4 sont reliés à une première prise de courant non représentée. L'ensemble fixe comprend en outre une couronne de doigts 6 portés par une couronne fixe 7. Les doigts 6 portent, intérieurement à la couronne, une butée annulaire 8. La couronne fixe est reliée électriquement à une seconde prise de courant non représentée.The fixed assembly comprises a fixed main contact consisting of fingers 3 and a fixed arcing contact consisting of a tube 4 having an end 4A of an alloy resistant to the effects of the arc, for example a tungsten-based alloy. Contacts 3 and 4 are connected to a first socket not shown. The fixed assembly further comprises a crown of fingers 6 carried by a crown fixed 7. The fingers 6 carry, internally at the crown, an annular stop 8. The fixed crown is electrically connected to a second socket not shown.

La couronne fixe 7 porte un tube 9 venu d'usinage, d'axe xx, qui se termine par un piston 10, muni d'un clapet unidirectionnel 11, d'un joint d'etanchéité 12 et de contacts électriques glissants 13.The fixed crown 7 carries a tube 9 from machining, of axis xx, which ends with a piston 10, provided with a one-way valve 11, a seal 12 and sliding electrical contacts 13.

L'équipage mobile comprend un contact d'arc constitué d'un tube 15, d'axe xx, ayant une extrémité 15A en matériau résistant aux effets de l'arc.The moving element comprises an arcing contact consisting of a tube 15, of axis xx, having an end 15A of material resistant to the effects of the arcing.

Ce tube 15 est solidaire d'un tube 16 coaxial, avec lequel il définit un cylindre de soufflage se déplaçant autour du piston fixe 10. L'etanchéité entre le piston 10 et le cylindre 16 est assurée par le joint 12; le passage du courant entre le tube 15 et le piston 10 est assuré par les contacts glissants 13. Le tube 16 porte une buse de soufflage en matériau isolant.This tube 15 is integral with a coaxial tube 16, with which it defines a blowing cylinder moving around the fixed piston 10. The seal between the piston 10 and the cylinder 16 is ensured by the seal 12; the passage of current between the tube 15 and the piston 10 is ensured by the sliding contacts 13. The tube 16 carries a blowing nozzle made of insulating material.

Les tubes 15 et 16 sont avantageusement réalisés dans une même pièce usinée; des trous 18, ménagés dans la partie reliant les deux tubes, permettent d'établir une communication entre le volume 20 et le volume 21 compris entre le tube 15 et la buse 17.The tubes 15 and 16 are advantageously produced in the same machined part; holes 18, formed in the part connecting the two tubes, make it possible to establish communication between the volume 20 and the volume 21 comprised between the tube 15 and the nozzle 17.

Le tube 15 est prolongé par une pièce 22 reliée à une tige de manoeuvre non représentée. Des trous 15B dans le tube 15, et 9A dans le tube 9, permettent, lors de l'ouverture du disjoncteur, l'évacuation du gaz chaud vers le volume 2.The tube 15 is extended by a part 22 connected to an operating rod, not shown. Holes 15B in the tube 15, and 9A in the tube 9, allow, when the circuit breaker opens, the evacuation of the hot gas to the volume 2.

Le contact principal mobile est constitué par un court cylindre métallique 30 coopérant avec les doigts 3 et 6. Ce cylindre est fixé à l'extrémité d'un tube 31 terminé par un anneau 32. (En variante, le tube pourrait être remplacé par un ensemble de tiges disposées selon certaines génératrices d'un cylindre).The movable main contact is constituted by a short metal cylinder 30 cooperating with the fingers 3 and 6. This cylinder is fixed to the end of a tube 31 terminated by a ring 32. (As a variant, the tube could be replaced by a set of rods arranged according to certain generatrices of a cylinder).

Un ressort 33, bandé lorsque le disjoncteur est en position enclenchée, (figure 1), est disposé entre la butée annulaire 8 et l'anneau 32.A spring 33, bandaged when the circuit breaker is in the engaged position (FIG. 1), is disposed between the annular stop 8 and the ring 32.

Le fonctionnement du disjoncteur est le suivant:
- en position enclenchée (figure1) le courant passe par les doigts 3, le tube 30, les doigts 6 et la couronne 7.
- à l'ouverture du disjoncteur (figure2), le tube 22 est entraîné à grande vitesse (V2) vers la droite de la figure.The circuit breaker works as follows:
- in the engaged position (Figure 1) the current flows through the fingers 3, the tube 30, the fingers 6 and the crown 7.
- At the opening of the circuit breaker (Figure2), the tube 22 is driven at high speed (V2) to the right of the figure.

Le tube 30 quitte les doigts 3 à une vitesse inférieure (V1) qui est celle donnée par l'énergie du ressort 33.The tube 30 leaves the fingers 3 at a lower speed (V1) which is that given by the energy of the spring 33.

Pendant que le contact principal 30 quitte les doigts 3 et parcourt une longueur L1 à la vitesse V1, les contacts mobiles se sont déplacés l'un par rapport à l'autre d'une longueur L2, supérieure à L1, à une vitesse V2 supérieure à la vitesse V1.While the main contact 30 leaves the fingers 3 and travels a length L1 at speed V1, the movable contacts have moved relative to each other by a length L2, greater than L1, at a speed V2 greater at speed V1.

Après séparation des contacts principaux 30 et 3, le courant passe par les tubes 4, 15, les contacts 13, le tube 9 et la couronne 7.After separation of the main contacts 30 and 3, the current flows through the tubes 4, 15, the contacts 13, the tube 9 and the crown 7.

La suite de l'opération d'ouverture (soufflage de l'arc) se fait comme dans les disjoncteurs bien connus à soufflage d'arc. Le clapet 11, en s'ouvrant, évite tout effet de dépression dans le volume 30, lors de l'enclenchement.The continuation of the opening operation (arc blowing) is done as in the well-known arc blowing circuit breakers. The valve 11, by opening, avoids any effect of depression in the volume 30, during the engagement.

En remplaçant, selon l'invention,le contact permanent habituel par un contact qui n'est plus lié à l'équipage mobile, on réalise une importante économie de poids sur l'équipage mobile (qui est réduit environ au tiers de ce qu'il est dans les disjoncteurs du même type de l'art antérieur). Parallèlement, on a réduit la vitesse du contact principal mobile; il en résulte un gain important sur l'énergie à mettre en oeuvre pour manoeuvrer le disjoncteur.By replacing, according to the invention, the usual permanent contact with a contact which is no longer linked to the moving element, there is a significant saving in weight on the moving element (which is reduced approximately to a third of what it is in circuit breakers of the same type of the prior art). At the same time, the speed of the movable main contact has been reduced; this results in a significant gain on the energy to be used to operate the circuit breaker.

Dans l'exemple décrit, on a donné comme exemple de moyen de mise en oeuvre du contact d'arc mobile un ressort; une autre possibilité est d'utiliser un jeu de levier lié à l'équipage mobile et dont la réalisation est bien connue de l'homme du métier.In the example described, a spring has been given as an example of means for implementing the movable arcing contact; another possibility is to use a game of lever linked to the moving assembly and the production of which is well known to those skilled in the art.

On notera que l'invention peut aussi s'appliquer aux disjoncteurs munis de moyens pour créer un arc secondaire qui vient aider au soufflage de l'arc et/ou à la manoeuvre de déclenchement.It will be noted that the invention can also be applied to circuit breakers provided with means for creating a secondary arc which comes to aid in the blowing of the arc and / or in the tripping operation.

Claims (4)

1/ Disjoncteur à gaz de soufflage diélectrique comprenant un contact fixe principal (3), un contact d'arc principal (4) et un équipage mobile comprenant notamment un contact d'arc mobile (15) et un moyen de soufflage (16), caractérisé en ce qu,il comprend un contact principal mobile (30) désolidarisé dudit équipage mobile et réalisé au moyen d'un élément cylindrique court associé à un moyen (33) lui communiquant au déclenchement une vitesse inférieure à celle de l'équipage mobile.1 / Dielectric blowing gas circuit breaker comprising a main fixed contact (3), a main arcing contact (4) and a moving element comprising in particular a movable arcing contact (15) and a blowing means (16), characterized in that it comprises a movable main contact (30) separated from said movable assembly and produced by means of a short cylindrical element associated with means (33) communicating to it on triggering a speed lower than that of the movable assembly. 2/ Disjoncteur selon la revendication 1, caractérisé en ce que ledit élément (30) est un tube.2 / A circuit breaker according to claim 1, characterized in that said element (30) is a tube. 3/ Disjoncteur selon la revendication 1 caractérisé en ce que ledit élément (30) est constitué de tiges disposées selon certaines génératrices d'un cylindre.3 / A circuit breaker according to claim 1 characterized in that said element (30) consists of rods arranged according to certain generatrices of a cylinder. 4/ Disjoncteur selon l'une des revendications 1 à 3 caractérisé en ce que ledit moyen de déplacement est un ressort (33) s'appuyant par une première extrémité sur une butée fixe (8) et par une seconde extrémité sur une butée (32) solidaire dudit élément (30).4 / Circuit breaker according to one of claims 1 to 3 characterized in that said displacement means is a spring (33) supported by a first end on a fixed stop (8) and by a second end on a stop (32 ) integral with said element (30).
EP90109022A 1989-05-19 1990-05-14 Middle high-voltage circuit breaker for high nominal current Expired - Lifetime EP0398213B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8906554 1989-05-19
FR8906554A FR2647254B1 (en) 1989-05-19 1989-05-19 MEDIUM VOLTAGE CIRCUIT BREAKER AT HIGH RATED CURRENT

Publications (2)

Publication Number Publication Date
EP0398213A1 true EP0398213A1 (en) 1990-11-22
EP0398213B1 EP0398213B1 (en) 1995-03-15

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EP90109022A Expired - Lifetime EP0398213B1 (en) 1989-05-19 1990-05-14 Middle high-voltage circuit breaker for high nominal current

Country Status (11)

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US (1) US4996398A (en)
EP (1) EP0398213B1 (en)
JP (1) JP2568296B2 (en)
CN (1) CN1022270C (en)
AT (1) ATE120030T1 (en)
BR (1) BR9002332A (en)
CA (1) CA2017127C (en)
DE (1) DE69017752T2 (en)
DK (1) DK0398213T3 (en)
ES (1) ES2070203T3 (en)
FR (1) FR2647254B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1811537A1 (en) 2006-01-23 2007-07-25 ABB Technology AG Interrupting chamber for a gas insulated circuit breaker

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4174094B2 (en) * 1998-01-29 2008-10-29 株式会社東芝 Gas circuit breaker
EP1403891B2 (en) † 2002-09-24 2016-09-28 ABB Schweiz AG Circuit breaker
DE102010062343A1 (en) * 2010-12-02 2012-06-06 Siemens Aktiengesellschaft Electric contact arrangement
CN111799128B (en) * 2020-07-17 2022-07-29 西安西电开关电气有限公司 Air cylinder system and high-capacity switch equipment thereof
CN113690093B (en) * 2021-08-25 2023-01-24 西安西电开关电气有限公司 Circuit breaker

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1458334A (en) * 1965-08-18 1966-03-04 Comp Generale Electricite Switching device for high intensity currents
US3271548A (en) * 1963-10-11 1966-09-06 Westinghouse Electric Corp Contact constructions for circuit interrupters
DE2604702A1 (en) * 1975-07-11 1977-01-20 Sprecher & Schuh Ag PRESSURE GAS SWITCH
EP0011542A1 (en) * 1978-11-14 1980-05-28 Merlin Gerin Circuit breaker with separated main and shunt current paths
EP0028039A1 (en) * 1979-10-25 1981-05-06 BBC Aktiengesellschaft Brown, Boveri & Cie. Puffer type gas circuit-breaker
FR2519470A1 (en) * 1982-01-05 1983-07-08 Alsthom Atlantique COMPRESSED GAS CIRCUIT BREAKER
FR2554273A1 (en) * 1983-10-28 1985-05-03 Bbc Brown Boveri & Cie HIGH VOLTAGE POWER CIRCUIT BREAKER

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271548A (en) * 1963-10-11 1966-09-06 Westinghouse Electric Corp Contact constructions for circuit interrupters
FR1458334A (en) * 1965-08-18 1966-03-04 Comp Generale Electricite Switching device for high intensity currents
DE2604702A1 (en) * 1975-07-11 1977-01-20 Sprecher & Schuh Ag PRESSURE GAS SWITCH
EP0011542A1 (en) * 1978-11-14 1980-05-28 Merlin Gerin Circuit breaker with separated main and shunt current paths
EP0028039A1 (en) * 1979-10-25 1981-05-06 BBC Aktiengesellschaft Brown, Boveri & Cie. Puffer type gas circuit-breaker
FR2519470A1 (en) * 1982-01-05 1983-07-08 Alsthom Atlantique COMPRESSED GAS CIRCUIT BREAKER
FR2554273A1 (en) * 1983-10-28 1985-05-03 Bbc Brown Boveri & Cie HIGH VOLTAGE POWER CIRCUIT BREAKER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1811537A1 (en) 2006-01-23 2007-07-25 ABB Technology AG Interrupting chamber for a gas insulated circuit breaker
WO2007082399A1 (en) * 2006-01-23 2007-07-26 Abb Technology Ag Switching chamber for a gas-insulated high-voltage circuit breaker

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Publication number Publication date
DE69017752D1 (en) 1995-04-20
US4996398A (en) 1991-02-26
BR9002332A (en) 1991-08-06
FR2647254A1 (en) 1990-11-23
FR2647254B1 (en) 1991-07-05
CN1022270C (en) 1993-09-29
EP0398213B1 (en) 1995-03-15
CN1050286A (en) 1991-03-27
DE69017752T2 (en) 1995-07-13
ATE120030T1 (en) 1995-04-15
ES2070203T3 (en) 1995-06-01
JPH0329230A (en) 1991-02-07
JP2568296B2 (en) 1996-12-25
CA2017127A1 (en) 1990-11-19
CA2017127C (en) 1993-12-07
DK0398213T3 (en) 1995-07-03

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