EP0334181A1 - High-tension switch with a reduced driving energy - Google Patents

High-tension switch with a reduced driving energy Download PDF

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Publication number
EP0334181A1
EP0334181A1 EP89104558A EP89104558A EP0334181A1 EP 0334181 A1 EP0334181 A1 EP 0334181A1 EP 89104558 A EP89104558 A EP 89104558A EP 89104558 A EP89104558 A EP 89104558A EP 0334181 A1 EP0334181 A1 EP 0334181A1
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EP
European Patent Office
Prior art keywords
tube
contact
circuit breaker
movable
constituting
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
EP89104558A
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German (de)
French (fr)
Other versions
EP0334181B1 (en
Inventor
Edmond Thuries
Denis Dufournet
Michel 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
Original Assignee
Alstom SA
GEC Alsthom SA
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Publication date
Application filed by Alstom SA, GEC Alsthom SA filed Critical Alstom SA
Priority to AT89104558T priority Critical patent/ATE99829T1/en
Publication of EP0334181A1 publication Critical patent/EP0334181A1/en
Application granted granted Critical
Publication of EP0334181B1 publication Critical patent/EP0334181B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7007—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein the flow is a function of the current being interrupted
    • 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
    • H01H33/901—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 making use of the energy of the arc or an auxiliary arc
    • H01H33/903—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 making use of the energy of the arc or an auxiliary arc and assisting the operating mechanism

Definitions

  • the present invention relates to a high voltage circuit breaker in which the breaking chamber is filled with dielectric gas, such as sulfur hexafluoride, and in which the energy of the arc is used, thanks to the increase in pressure it gives to gas, to reduce the energy required for cutting.
  • dielectric gas such as sulfur hexafluoride
  • the invention relates more particularly to a circuit breaker having a blowing cylinder and a second chamber in which an additional pair of contacts is capable of generating, when the circuit breaker opens, a secondary arc used to help provide energy for the opening maneuver.
  • Such a circuit breaker is known for example from French patent No. 8701545.
  • a problem to be solved in this type of circuit breaker is that the pressure remains low in the blowing cylinder for cutting small cutlery (low operating energy) and that the pressure is high for cutting large currents without increasing the maneuvering energy.
  • the circuit breaker described in the aforementioned document has drawbacks, however.
  • the maximum separation distance of the secondary contacts is as long as the separation distance of the arcing contacts so that the secondary arc stretches for a long time, which leads to strikes on the walls. of the chamber containing the secondary contacts.
  • a first object of the invention is to provide a circuit breaker in which no ignition due to the secondary arc.
  • Another object of the invention is to provide a circuit breaker in which no arc strikes upon switching on.
  • the subject of the invention is a high-voltage circuit breaker with pressurized dielectric gas, of the type comprising at least one breaking chamber comprising an insulating envelope filled with said gas inside which are placed an assembly comprising a fixed main contact and a fixed arcing contact, a movable assembly comprising in particular a movable main contact and a movable arcing contact, the interrupting chamber further comprising a blowing cylinder opening into a blowing nozzle, said circuit breaker comprising a pair of secondary contacts, characterized in that it comprises first means for limiting the maximum distance of separation of the secondary contacts to a value less than the maximum distance of separation of the arcing contacts and second means for preventing any initiation on engagement.
  • Figure 1 shows a breaking chamber comprising an envelope 1, of insulating material such as ceramic, filled with a dielectric gas such as sulfur hexafluoride under a pressure of a few bars.
  • an assembly comprising a fixed main contact formed by contact fingers 2 protected by a corona hood 3 and an arcing contact formed by a metal tube 4 terminated by one end 4A alloy resistant to the effects of the arc.
  • the moving element comprises a metal tube 5 serving as a moving arcing contact, terminated by a tip 5A made of an alloy resistant to the effects of the arcing.
  • the tube 5 is driven by a metal tube 6, for example made of aluminum, fixed to an operating rod, not shown. Tubes 5 and 6 are not attached to each other; on the contrary, a certain clearance between them is possible; the drive is done by two steps 5B and 6B of the tubes 5 and 6. The travel is limited by a stop 6C.
  • a metal tube 7, concentric with the tube 5, serves as a movable main contact.
  • blowing nozzle 8 made of insulating material. It is in electrical contact with a metal block 9, made of aluminum for example, secured to the fixed assembly, by contact fingers 10.
  • the tube 5 and the tube 7 are joined by an insulating ring 12, pierced with holes 12A.
  • the volume 20 delimited by the tubes 5 and 7 is closed by a fixed piston 14, made of an insulating material such as polytetrafluoroethylene, held in place by a metal tube 15 fixed to the block 9.
  • the volume delimited by the tubes 5 and 7, the ring 12 and the piston 14 is designated by 20. This volume constitutes the blow-out cylinder of the circuit breaker.
  • the piston 14 is pierced with orifices 16 and includes a valve 17 authorizing the passage of gas only from the outside to the inside of the volume 20.
  • the piston 14 comprises a seal 18 and a guide 19.
  • the orifices 16 of the piston 14 can be obstructed by an annular piston 22, which can slide in the annular space formed by the tube 5 and a cylindrical extension 23, pierced with holes 23A, of the piston 14.
  • the annular piston 22 is pushed against the orifices 16 by a spring 24 pressing against an integral part of the fixed tube 15.
  • the piston is sealed by seals 26 and 27.
  • a pair of auxiliary contacts includes: a fixed tubular contact 30, provided with an end 30A of arc-resistant material, and fixed to the tube 15, - a tubular contact 31, provided with a wear end 31A, fixed to a guide block made of insulating material 32, and provided with sliding contacts 31B cooperating with the tube 5.
  • the insulating block is guided in the annular space between the tubes 5 and 15 thanks to a portion 32A coming to bear against the tube 15.
  • This portion is provided with orifices 33 to allow the free passage of the gas in the volume 35 comprised between the tube 15 and the parts 31, 32 and 42.
  • the insulating part 32 is provided with a latching system, for example with balls 36 and springs 37, cooperating with grooves 38 and 39 formed in the tube 5.
  • a stop 40 of the tube 15 limits the stroke of the insulating part 32 .
  • the volume 35 is closed by an insulating piston 42, fixed to the tube 5 and having a guide segment 43 and a valve 44 allowing the passage of gas only from the outside to the inside of the volume 35.
  • the tube 5 has holes 46 at its end.
  • the tube 6 has holes 47.
  • the part 9 carries a contact 48 cooperating with one end 49 of the tube 5 to place the tube 5 at the same potential as the rest of the moving assembly at the end of the opening stroke.
  • the circuit breaker works as follows.
  • the vacuum generated in the volume 35 causes the valve 44 to open and the pressure in the volume 35 to be maintained. There is therefore no loss in suction.
  • the arc 60 which is established between the contacts 30 and 31 either at the same time as the arc 50, either slightly before or slightly after, creates a sufficiently low overpressure so as not to disturb this operation.
  • the current passes through contact 4, arc 50, tube 5, contacts 31B, contact 31, arc 60, contact 30 , the tube 15 and the part 9.
  • the part 32A After a certain stroke, determined as a function of the short-circuit current, the part 32A abuts on the stop 40.
  • the tube 5 continuing its stroke, the balls 36 leave the groove 39 and come to be positioned on the groove 38 (FIG. 3) at the end of the opening maneuver and the slight overpressure of the volume 20 disappears thanks to the holes 23A; the piston 22 comes into abutment against the fixed piston 14.
  • the contact 48 puts the end 49 of the tube 5, and therefore the contact 31, at the potential of the part 9, of the tube 15 and therefore of the contact 30.
  • the maximum separation distance of the secondary contacts remains less to that of the arcing contacts, so that no risk of ignition due to excessive stretching of the secondary arcing is to be feared.
  • the tube 6 is actuated to the left of the figure ( Figure 4).
  • the stop 6C drives the tube 5 and the contacts 30 and 31 come into contact, without creating an arc since they are at the same potential thanks to the contact of the parts 48 and 49.
  • the slight overpressure in the volume 35 is evacuated, by the holes 46 and 47 which come into coincidence, towards the volume 70 inside the tube 5.
  • Figure 5 shows the circuit breaker being opened by moving the tube 6 to the right of the figure.
  • the arc 60 causes rapid heating of the volume 35 and of the volume 35B surrounded by the contacts 30, 31 the piston 22 and the cylinder 5.
  • the increase in pressure has two effects: -
  • the first effect is to press the piston 22 against the piston 14 and thus close any communication between the volume 35B and the volume 20.
  • the increasing pressure in the volume 20 promotes the extinction of the primary arc 50 by a favored self-blowing by the reduction in size of the volume 20 due to the displacement of the moving element 5, 7, relative to the fixed piston 14.
  • the second effect is to exert pressure on the insulating piston 42 and thus make a contribution to the energy of maneuver.
  • the hot gas of volume 35 passes through the orifices 33 of the part 32A.
  • FIG. 6 shows an alternative embodiment.
  • the elements common to this figure and to the preceding figures have been given the same reference numbers.
  • the insulating tube 103 is advantageously provided with grooves parallel to the axis of the circuit breaker which channel the secondary arc.
  • the first secondary contact 105 provided with a wearing part 105 A is integral with the tube 15; the second secondary contact 106, provided with a wearing part 106 A, is movable relative to the tube 101 and extended by a tubular part 107 itself connected to an operating rod of the circuit breaker not shown.
  • the contact 106 has a solid part 106 C provided with radial orifices 108 which, when the circuit breaker is closed (position in FIG. 6), are in coincidence with the bores 102.
  • the part 106C has sliding electrical contacts 106B cooperating with the part 101.
  • a stop 109 such as a circlip, integral with the rod 107, abuts against the part 101 during an engagement maneuver.
  • the movable main contact 7 carries sliding electrical contacts 110 ensuring the passage of current through the part 15 which, as before, is connected to one of the sockets of the circuit breaker.
  • a stop 111 limits the travel of the moving part to the engagement; as in FIGS. 1 to 5, the chamber 35 is closed by an insulating piston 42 provided with a guide segment 43 and a valve 44.
  • the circuit breaker works as follows: - In the closed position, the current flows through the fingers 2, the tube 7, the contacts 110 and the tube 15; the orifices 102 and 108 are in coincidence, - at the opening of the circuit breaker (tripping), the tube 107 is pulled to the right of the figure and it drives the contact 106 whose massive part 106A first closes the orifices 102, then drives the part 102 and consequently arcing contact 5.
  • the arc appears at about the same time on the arcing contacts and on the secondary contacts.
  • the circuit breaker of the invention requires only a low operating energy for all the current values to be cut.
  • the number of elements is low and they are all of revolution which ensures an economical construction and an easy and fast assembly. Its design eliminates any risk of priming.

Landscapes

  • Circuit Breakers (AREA)
  • Lasers (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Electronic Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Organic Insulating Materials (AREA)

Abstract

High-tension pressurised dielectric gas switch of the type including at least one cut-off chamber comprising an insulating surround filled with the said gas and inside which are placed an assembly comprising a stationary main contact (2) and a stationary arc contact (4), a movable assembly comprising in particular a movable main contact (7) and a movable arc contact (5), the cut-off chamber further comprising a snuffing cylinder opening into a snuffing nozzle and a pair of secondary contacts, characterised in that it includes first means (37, 38, 104) for limiting the maximum distance of separation of the secondary contacts to a value less than the maximum distance of separation of the arc contacts and second means (6C, 101) for preventing any sparking on triggering. <IMAGE>

Description

La présente invention est relative à un disjoncteur à haute tension dans lequel la chambre de coupure est remplie de gaz diélectrique, tel que l'héxafluorure de soufre, et dans lequel l'énergie de l'arc est utilisée, grâce à l'augmentation de pression qu'elle confère au gaz, pour réduire l'énergie nécessaire à la coupure.The present invention relates to a high voltage circuit breaker in which the breaking chamber is filled with dielectric gas, such as sulfur hexafluoride, and in which the energy of the arc is used, thanks to the increase in pressure it gives to gas, to reduce the energy required for cutting.

L'invention concerne plus particulièrement un disjoncteur possédant un cylindre de soufflage et une seconde chambre dans laquelle un paire de contacts supplémentaire est capable de générer, lors de l'ouverture du disjoncteur, un arc secondaire utilisé pour contribuer à apporter de l'énergie pour la manoeuvre d'ouver­ture.The invention relates more particularly to a circuit breaker having a blowing cylinder and a second chamber in which an additional pair of contacts is capable of generating, when the circuit breaker opens, a secondary arc used to help provide energy for the opening maneuver.

Un tel disjoncteur est connu par exemple par le brevet français n° 8701545.Such a circuit breaker is known for example from French patent No. 8701545.

Un problème à résoudre dans ce type de disjoncteur est que la pression reste faible dans le cylindre de soufflage pour la coupure des petits couverts (faible énergie de manoeuvre) et que la pression soit élevée pour la coupure des courants impor­tants sans augmenter pour autant l'énergie de manoeuvre.A problem to be solved in this type of circuit breaker is that the pressure remains low in the blowing cylinder for cutting small cutlery (low operating energy) and that the pressure is high for cutting large currents without increasing the maneuvering energy.

Ce problème a été partiellement résolu dans la demande de brevet allemand publiée n° 23 49 263.This problem was partially solved in published German patent application no. 23 49 263.

Dans ce document, il est prévu de maintenir la pression dans le cylindre de soufflage à une valeur faible, en munissant le piston de soufflage d'ouvertures obturables.In this document, provision is made to maintain the pressure in the blowing cylinder at a low value, by providing the blowing piston with closable openings.

Le disjoncteur décrit dans le document précité présente cependant des inconvénients. Dans le disjoncteur de l'art antérieur la distance maximale de séparation des contacts secondaires est aussi longue que la distance de séparation des contacts d'arc de sorte que l'arc secondaire s'étire longuement, ce qui conduit à des amorçages sur les parois de la chambre contenant les contacts secondaires.The circuit breaker described in the aforementioned document has drawbacks, however. In the circuit breaker of the prior art, the maximum separation distance of the secondary contacts is as long as the separation distance of the arcing contacts so that the secondary arc stretches for a long time, which leads to strikes on the walls. of the chamber containing the secondary contacts.

Ces amorçages sont préjudiciables à une bonne coupure du courant et entraînent une usure plus rapide du disjoncteur.These strikes are detrimental to a good power cut and lead to faster wear of the circuit breaker.

Un premier but de l'invention est de réaliser un disjoncteur dans lequel aucun amorçage dû à l'arc secondaire.A first object of the invention is to provide a circuit breaker in which no ignition due to the secondary arc.

Dans le disjoncteur de l'art antérieur, aucune mesure n'est prévue pour empêcher un arc à l'enclenchement du disjoncteur. Or cet arc est responsable de l'accroîssement de l'énergie de manoeuvre et entraîne une usure supplémentaire du disjoncteur.In the circuit breaker of the prior art, no measure is provided to prevent an arc when the circuit breaker is engaged. However, this arc is responsible for increasing the operating energy and causes additional wear of the circuit breaker.

Un autre but de l'invention est de réaliser un disjoncteur dans lequel aucun arc ne s'amorce à l'enclenchement.Another object of the invention is to provide a circuit breaker in which no arc strikes upon switching on.

L'invention a pour objet un disjoncteur à haute tension à gaz diélectrique sous pression, du type comprenant au moins une chambre de coupure comportant une enveloppe isolante remplie dudit gaz à l'intérieur de laquelle sont placés un ensemble compor­tant un contact principal fixe et un contact d'arc fixe, un ensemble mobile comportant notamment un contact principal mobile et un contact d'arc mobile, la chambre de coupure comportant en outre un cylindre de soufflage débouchant dans une buse de soufflage, ledit disjoncteur comprenant une paire de contacts secondaires, caractérisé en ce qu'il comprend des premiers moyens pour limiter la distance maximale de séparation des contacts secondaires à une valeur inférieure à la distance maximale de séparation des contacts d'arc et des seconds moyens pour éviter tout amorçage à l'enclenchement.The subject of the invention is a high-voltage circuit breaker with pressurized dielectric gas, of the type comprising at least one breaking chamber comprising an insulating envelope filled with said gas inside which are placed an assembly comprising a fixed main contact and a fixed arcing contact, a movable assembly comprising in particular a movable main contact and a movable arcing contact, the interrupting chamber further comprising a blowing cylinder opening into a blowing nozzle, said circuit breaker comprising a pair of secondary contacts, characterized in that it comprises first means for limiting the maximum distance of separation of the secondary contacts to a value less than the maximum distance of separation of the arcing contacts and second means for preventing any initiation on engagement.

L'invention sera bien comprise par la description donnée ci-après d'un mode préféré de réalisation d'un disjoncteur selon l'invention dans lequel :

  • - la figure 1 est une vue partielle en demi-coupe axiale de la chambre de coupure d'un disjoncteur selon l'invention, en position enclenchée,
  • - la figure 2 est une vue similaire au cours d'une ouverture sur coupure de courant de faible intensité,
  • - la figure 3 est une vue similaire montrant la fin de la manoeuvre d'ouverture,
  • - la figure 4 est une vue similaire illustrant la fermeture du disjoncteur,
  • - la figure 5 est une vue similaire illustrant l'ouverture sur courant de forte intensité.
  • - la figure 6 est une vue partielle en demi-coupe axiale d'un disjoncteur selon une variante de réalisation de l'invention.
The invention will be better understood from the description given below of a preferred embodiment of a circuit breaker according to the invention in which:
  • FIG. 1 is a partial view in axial half-section of the breaking chamber of a circuit breaker according to the invention, in the engaged position,
  • FIG. 2 is a similar view during an opening on a low current power cut,
  • FIG. 3 is a similar view showing the end of the opening maneuver,
  • FIG. 4 is a similar view illustrating the closing of the circuit breaker,
  • - Figure 5 is a similar view illustrating the opening on high intensity current.
  • - Figure 6 is a partial view in axial half-section of a circuit breaker according to an alternative embodiment of the invention.

La figure 1 montre une chambre de coupure comprenant une enveloppe 1, en matériau isolant tel que le céramique, remplie d'un gaz diélectrique tel que l'héxafluorure de soufre sous une pression de quelques bars. A l'intérieur de l'enveloppe, on trouve un ensemble comprenant un contact principal fixe formé de doigts de contacts 2 protégés par un capot pare-effluves 3 et un contact d'arc formé d'un tube métallique 4 terminé par une extrémité 4A en alliage résistant aux effets de l'arc.Figure 1 shows a breaking chamber comprising an envelope 1, of insulating material such as ceramic, filled with a dielectric gas such as sulfur hexafluoride under a pressure of a few bars. Inside the envelope, there is an assembly comprising a fixed main contact formed by contact fingers 2 protected by a corona hood 3 and an arcing contact formed by a metal tube 4 terminated by one end 4A alloy resistant to the effects of the arc.

L'équipage mobile comprend un tube 5, métallique, servant de contact d'arc mobile, terminé par un embout 5A en alliage résistant aux effets de l'arc.The moving element comprises a metal tube 5 serving as a moving arcing contact, terminated by a tip 5A made of an alloy resistant to the effects of the arcing.

Le tube 5 est entraîné par un tube métallique 6, par exemple en aluminium, fixé à une tige de manoeuvre non représentée. Les tubes 5 et 6 ne sont pas fixés l'un à l'autre ; au contraire, un certain débattement entre eux est possible ; l'entraînement se fait grâce à deux redans 5B et 6B des tubes 5 et 6. Le débattement est limité par une butée 6C.The tube 5 is driven by a metal tube 6, for example made of aluminum, fixed to an operating rod, not shown. Tubes 5 and 6 are not attached to each other; on the contrary, a certain clearance between them is possible; the drive is done by two steps 5B and 6B of the tubes 5 and 6. The travel is limited by a stop 6C.

Un tube métallique 7, concentrique au tube 5, sert de contact principal mobile.A metal tube 7, concentric with the tube 5, serves as a movable main contact.

Il porte une buse de soufflage 8 en matériau isolant. Il est en contact électrique avec un bloc métallique 9, en aluminium par exemple, solidaire de l'équipage fixe, par des doigts de contact 10.It carries a blowing nozzle 8 made of insulating material. It is in electrical contact with a metal block 9, made of aluminum for example, secured to the fixed assembly, by contact fingers 10.

Le tube 5 et le tube 7 sont solidarisés par une couronne isolante 12, percée de trous 12A.The tube 5 and the tube 7 are joined by an insulating ring 12, pierced with holes 12A.

Le volume 20 délimité par les tubes 5 et 7 est fermé par un piston fixe 14, en matériau isolant tel que le polytétrafluoroéthy­lène, maintenu en place par un tube métallique 15 fixé au bloc 9.The volume 20 delimited by the tubes 5 and 7 is closed by a fixed piston 14, made of an insulating material such as polytetrafluoroethylene, held in place by a metal tube 15 fixed to the block 9.

On désigne par 20 le volume délimité par les tubes 5 et 7, la couronne 12 et le piston 14. Ce volume constitue le cylindre de soufflage du disjoncteur.The volume delimited by the tubes 5 and 7, the ring 12 and the piston 14 is designated by 20. This volume constitutes the blow-out cylinder of the circuit breaker.

Le piston 14 est percé d'orifices 16 et comprend un clapet 17 n'autorisant le passage du gaz que de l'extérieur vers l'inté­rieur du volume 20. Le piston 14 comprend un joint d'étanchéité 18 et un guidage 19.The piston 14 is pierced with orifices 16 and includes a valve 17 authorizing the passage of gas only from the outside to the inside of the volume 20. The piston 14 comprises a seal 18 and a guide 19.

Les orifices 16 du piston 14 peuvent être obstrués par un piston annulaire 22, pouvant glisser dans l'espace annulaire constitué par le tube 5 et un prolongement cylindrique 23, percé de trous 23A, du piston 14. Le piston annulaire 22 est poussé contre les orifices 16 par un ressort 24 s'appuyant contre une partie solidaire du tube fixe 15. L'étanchéité du piston est assurée par des joints 26 et 27.The orifices 16 of the piston 14 can be obstructed by an annular piston 22, which can slide in the annular space formed by the tube 5 and a cylindrical extension 23, pierced with holes 23A, of the piston 14. The annular piston 22 is pushed against the orifices 16 by a spring 24 pressing against an integral part of the fixed tube 15. The piston is sealed by seals 26 and 27.

Une paire de contact auxiliaire comprend :
- un contact tubulaire fixe 30, muni d'une extrémité 30A en matériau résistant à l'arc, et fixé au tube 15,
- un contact tubulaire 31, muni d'une extrémité d'usure 31A, fixé à un bloc de guidage en matériau isolant 32, et muni de contacts glissants 31B coopérant avec le tube 5.A pair of auxiliary contacts includes:
a fixed tubular contact 30, provided with an end 30A of arc-resistant material, and fixed to the tube 15,
- a tubular contact 31, provided with a wear end 31A, fixed to a guide block made of insulating material 32, and provided with sliding contacts 31B cooperating with the tube 5.

Le bloc isolant est guidé dans l'espace annulaire compris entre les tubes 5 et 15 grâce à une portion 32A venant en appui contre le tube 15.The insulating block is guided in the annular space between the tubes 5 and 15 thanks to a portion 32A coming to bear against the tube 15.

Cette portion est munie d'orifices 33 pour permettre le libre passage du gaz dans le volume 35 compris entre le tube 15 et les pièces 31, 32 et 42.This portion is provided with orifices 33 to allow the free passage of the gas in the volume 35 comprised between the tube 15 and the parts 31, 32 and 42.

La pièce isolante 32 est munie d'un système d'encliquetage, par exemple à billes 36 et ressorts 37, coopérant avec des gorges 38 et 39 pratiquées dans le tube 5. Une butée 40 du tube 15 limite la course de la pièce isolante 32.The insulating part 32 is provided with a latching system, for example with balls 36 and springs 37, cooperating with grooves 38 and 39 formed in the tube 5. A stop 40 of the tube 15 limits the stroke of the insulating part 32 .

Le volume 35 est fermé par un piston isolant 42, fixé au tube 5 et possédant un segment de guidage 43 et un clapet 44 n'autorisant le passage du gaz que de l'extérieur vers l'intérieur du volume 35.The volume 35 is closed by an insulating piston 42, fixed to the tube 5 and having a guide segment 43 and a valve 44 allowing the passage of gas only from the outside to the inside of the volume 35.

Le tube 5 porte a son extrémité des trous 46. De même le tube 6 possède des trous 47.The tube 5 has holes 46 at its end. Similarly, the tube 6 has holes 47.

La pièce 9 porte un contact 48 coopérant avec une extrémité 49 du tube 5 pour placer le tube 5 au même potentiel que le reste de l'équipage mobile en fin de course d'ouverture.The part 9 carries a contact 48 cooperating with one end 49 of the tube 5 to place the tube 5 at the same potential as the rest of the moving assembly at the end of the opening stroke.

Le fonctionnement du disjoncteur est le suivant.The circuit breaker works as follows.

Lorsque le disjoncteur est fermé (position de la figure 1), le courant passe par les doigts 2, le tube 7, les doigts 10 et la pièce 9.When the circuit breaker is closed (position in FIG. 1), the current flows through the fingers 2, the tube 7, the fingers 10 and the part 9.

Coupure des faibles courantsCutting of weak currents

Il s'agit des courants inférieurs ou égaux au courant nominal de l'installation. A l'ouverture de disjoncteur (figure 2), l'équipa­ge mobile est entraîné par le tube 6. A la séparation des contacts un arc 50 jaillit entre les contacts d'arc 4B et 5A. L'augmentation de pression dans la chambre 20 repousse le piston 22, contre l'action du ressort 24, de sorte que la pression dans la chambre reste constante et faible, le gaz trouvant une expansion facile par les trous 16 et 23A.These are currents less than or equal to the nominal current of the installation. At the opening of the circuit breaker (FIG. 2), the mobile assembly is driven by the tube 6. When the contacts are separated, an arc 50 erupts between the arcing contacts 4B and 5A. The increase in pressure in the chamber 20 pushes the piston 22 against the action of the spring 24, so that the pressure in the chamber remains constant and low, the gas finding easy expansion through the holes 16 and 23A.

La dépression engendrée dans le volume 35 provoque l'ouverture du clapet 44 et le maintien de la pression dans le volume 35. Il n'y a donc pas de perte par succion.The vacuum generated in the volume 35 causes the valve 44 to open and the pressure in the volume 35 to be maintained. There is therefore no loss in suction.

L'arc 60, qui s'établit entre les contacts 30 et 31 soit en même temps que l'arc 50, soit légèrement avant, soit légèrement après, crée une surpression suffisamment faible pour ne pas perturber ce fonctionnement.The arc 60, which is established between the contacts 30 and 31 either at the same time as the arc 50, either slightly before or slightly after, creates a sufficiently low overpressure so as not to disturb this operation.

Avant que le courant ne soit coupé par l'action de la sépara­tion des contacts, le courant passe par le contact 4, l'arc 50, le tube 5, les contacts 31B, le contact 31, l'arc 60, le contact 30, le tube 15 et la pièce 9.Before the current is cut by the action of the separation of the contacts, the current passes through contact 4, arc 50, tube 5, contacts 31B, contact 31, arc 60, contact 30 , the tube 15 and the part 9.

Après certaine course, déterminée en fonction du courant de court-circuit la pièce 32A vient en butée sur la butée 40. Le tube 5 poursuivant sa course, les billes 36 quittent la gorge 39 et viennent se positionner sur la gorge 38 (figure 3) en fin de manoeuvre d'ouverture et la légère surpression du volume 20 disparait grâce aux trous 23A ; le piston 22 revient en butée contre le piston fixe 14. Le contact 48 met l'extrémité 49 du tube 5, et donc le contact 31, au potentiel de la pièce 9, du tube 15 et donc du contact 30.After a certain stroke, determined as a function of the short-circuit current, the part 32A abuts on the stop 40. The tube 5 continuing its stroke, the balls 36 leave the groove 39 and come to be positioned on the groove 38 (FIG. 3) at the end of the opening maneuver and the slight overpressure of the volume 20 disappears thanks to the holes 23A; the piston 22 comes into abutment against the fixed piston 14. The contact 48 puts the end 49 of the tube 5, and therefore the contact 31, at the potential of the part 9, of the tube 15 and therefore of the contact 30.

On voit que grâce aux dispositions de l'invention, la distance maximale de séparation des contacts secondaires reste inférieure à celle des contacts d'arc, de sorte qu'aucun risque d'amorçage dû à un trop grand étirement de l'arc secondaire n'est à craindre.We see that thanks to the provisions of the invention, the maximum separation distance of the secondary contacts remains less to that of the arcing contacts, so that no risk of ignition due to excessive stretching of the secondary arcing is to be feared.

Fermeture du disjoncteurBreaker closing

Le tube 6 est actionné vers la gauche de la figure (figure 4). La butée 6C entraîne le tube 5 et les contacts 30 et 31 viennent en contact, sans création d'arc puisqu'il sont au même potentiel grâce au contact des pièces 48 et 49. La légère surpression dans le volume 35 s'évacue, par les trous 46 et 47 qui viennent en coïncidence, vers le volume 70 intérieur au tube 5. Lorsque le contact 30A vient en butée contre le bloc portant le contact 31, les billes 36 quittent la gorge 38 pour revenir se placer sur la gorge 39 en fin de manoeuvre d'enclenchement.The tube 6 is actuated to the left of the figure (Figure 4). The stop 6C drives the tube 5 and the contacts 30 and 31 come into contact, without creating an arc since they are at the same potential thanks to the contact of the parts 48 and 49. The slight overpressure in the volume 35 is evacuated, by the holes 46 and 47 which come into coincidence, towards the volume 70 inside the tube 5. When the contact 30A abuts against the block carrying the contact 31, the balls 36 leave the groove 38 to return to be placed on the groove 39 in end of switching operation.

En fin de manoeuvre de fermeture on retrouve la configuration de la figure 1.At the end of the closing operation, we find the configuration of FIG. 1.

On voit que grâce à la disposition de l'invention tout amorçage à la fermeture du disjoncteur est exclus.It can be seen that, thanks to the arrangement of the invention, any priming on closing of the circuit breaker is excluded.

Toute résistance due à une éventuelle dépression dans cham­bre 20 est évitée par l'ouverture du clapet 17.Any resistance due to possible depression in chamber 20 is avoided by opening the valve 17.

Coupure des courant de grande intensitéHigh current cutoff

Il s'agit des courants de court-circuit.These are short-circuit currents.

La figure 5 montre le disjoncteur en cours d'ouverture par déplacement du tube 6 vers la droite de la figure.Figure 5 shows the circuit breaker being opened by moving the tube 6 to the right of the figure.

L'arc 60, de très forte intensité, provoque un échauffement rapide du volume 35 et du volume 35B entouré par les contacts 30, 31 le piston 22 et le cylindre 5.The arc 60, of very high intensity, causes rapid heating of the volume 35 and of the volume 35B surrounded by the contacts 30, 31 the piston 22 and the cylinder 5.

L'augmentation de pression a deux effets :
- le premier effet est de plaquer le piston 22 contre le piston 14 et de fermer ainsi toute communication entre le volume 35B et le volume 20. La pression croissant dans le volume 20 favorise l'extinction de l'arc primaire 50 par un autosoufflage favorisé par la réduction de grandeur du volume 20 en raison du déplacement de l'équipage mobile 5, 7, par rapport au piston fixe 14.
- le deuxième effet est d'exercer une pression sur le piston isolant 42 et d'apporter ainsi une contribution à l'énergie de manoeuvre.The increase in pressure has two effects:
- The first effect is to press the piston 22 against the piston 14 and thus close any communication between the volume 35B and the volume 20. The increasing pressure in the volume 20 promotes the extinction of the primary arc 50 by a favored self-blowing by the reduction in size of the volume 20 due to the displacement of the moving element 5, 7, relative to the fixed piston 14.
- The second effect is to exert pressure on the insulating piston 42 and thus make a contribution to the energy of maneuver.

Pour cela le gaz chaud du volume 35 passe à travers les orifices 33 de la pièce 32A.For this, the hot gas of volume 35 passes through the orifices 33 of the part 32A.

La refermeture du disjoncteur après une telle manoeuvre d'ouverture sur courant de forte intensité s'effectue comme il a été décrit précédemment sous le chapitre : fermeture du disjonc­teur. Les trous 46 et 47 revenant en face l'un de l'autre, la surpression du volume 35 est évacuée dans le volume 70.The closing of the circuit breaker after such an opening operation on high current is carried out as described previously in the chapter: closing of the circuit breaker. The holes 46 and 47 returning opposite one another, the overpressure of volume 35 is evacuated in volume 70.

La figure 6 représente une variante de réalisation. Les éléments communs à cette figure et aux figures précédentes ont reçu les mêmes numéros de référence.Figure 6 shows an alternative embodiment. The elements common to this figure and to the preceding figures have been given the same reference numbers.

On reconnait l'enveloppe céramique 1, les contacts principaux fixes 2, le contact principal d'arc 4, 4A, le contact principal mobile 7, le contact d'arc mobile 5, 5A, fixé à un tube 100 lui-­même fixé à un court tube massif 101 muni des perçages 102 radiaux.We recognize the ceramic casing 1, the main fixed contacts 2, the main arcing contact 4, 4A, the movable main contact 7, the movable arcing contact 5, 5A, fixed to a tube 100 itself fixed to a short solid tube 101 provided with radial holes 102.

On reconnait le piston 14 muni de se joints dynamiques 18 et 19 et fixé au tube fixe 15. Le piston est muni cette fois de simples clapets 14A et 17A.We recognize the piston 14 provided with dynamic seals 18 and 19 and fixed to the fixed tube 15. The piston is provided this time with simple valves 14A and 17A.

Au piston 14 est fixée un tube isolant 103, terminé par une pièce métallique 104 munie d'une pièce d'usure 104A et en contact électrique avec le tube 100 par des contacts électriques glissant 104B. Le tube isolant (103) est avantageusement muni de rainures parallèles à l'axe du disjoncteur qui canalisent l'arc secondaire. Le premier contact secondaire 105, muni d'une pièce d'usure 105 A est solidaire du tube 15 ; le second contact secondaire 106, muni d'une pièce d'usure 106 A, est mobile par rapport au tube 101 et prolongé par une pièce tubulaire 107 elle-­même reliée à une tringle de manoeuvre du disjoncteur non représen­tée. Le contact 106 possède une partie massive 106 C munie d'orifices radiaux 108 qui, lorsque le disjoncteur est fermé, (position de la figure 6), sont en coïncidence avec les perçages 102. La partie 106C possède des contacts électriques glissants 106B coopérant avec la pièce 101. Une butée 109 tel qu'un circlips, solidaire de la tige 107, vient en butée contre la pièce 101 lors d'une manoeuvre d'enclenchement.To the piston 14 is fixed an insulating tube 103, terminated by a metal part 104 provided with a wearing part 104A and in electrical contact with the tube 100 by sliding electrical contacts 104B. The insulating tube (103) is advantageously provided with grooves parallel to the axis of the circuit breaker which channel the secondary arc. The first secondary contact 105, provided with a wearing part 105 A is integral with the tube 15; the second secondary contact 106, provided with a wearing part 106 A, is movable relative to the tube 101 and extended by a tubular part 107 itself connected to an operating rod of the circuit breaker not shown. The contact 106 has a solid part 106 C provided with radial orifices 108 which, when the circuit breaker is closed (position in FIG. 6), are in coincidence with the bores 102. The part 106C has sliding electrical contacts 106B cooperating with the part 101. A stop 109 such as a circlip, integral with the rod 107, abuts against the part 101 during an engagement maneuver.

Le contact principal mobile 7 porte des contacts électriques glissants 110 assurant le passage du courant dans la pièce 15 qui, comme précédemment, est reliée à l'une des prises du disjoncteur. Une butée 111 limite la course de l'équipage mobile à l'enclenchement ; comme dans les figures 1 à 5, la chambre 35 est fermée par un piston isolant 42 muni d'un segment de guidage 43 et d'un clapet 44.The movable main contact 7 carries sliding electrical contacts 110 ensuring the passage of current through the part 15 which, as before, is connected to one of the sockets of the circuit breaker. A stop 111 limits the travel of the moving part to the engagement; as in FIGS. 1 to 5, the chamber 35 is closed by an insulating piston 42 provided with a guide segment 43 and a valve 44.

Le fonctionnement du disjoncteur est le suivant :
- en position fermée, le courant passe par les doigts 2, le tube 7, les contacts 110 et le tube 15 ; les orifices 102 et 108 sont en coïncidence,
- à l'ouverture du disjoncteur (déclenchement), le tube 107 est tiré vers la droite de la figure et il entraîne le contact 106 dont la partie massive 106A vient d'abord obturer les orifices 102, puis entraîner la pièce 102 et par suite le contact d'arc 5.The circuit breaker works as follows:
- In the closed position, the current flows through the fingers 2, the tube 7, the contacts 110 and the tube 15; the orifices 102 and 108 are in coincidence,
- at the opening of the circuit breaker (tripping), the tube 107 is pulled to the right of the figure and it drives the contact 106 whose massive part 106A first closes the orifices 102, then drives the part 102 and consequently arcing contact 5.

L'arc apparait à peu près en même temps sur les contacts d'arc et sur les contacts secondaires.The arc appears at about the same time on the arcing contacts and on the secondary contacts.

Mais, dès que l'extrémité 106A atteint la pièce 104A, l'arc secondaire ne s'allonge plus et reste fixé entre ces deux pièces. Il n'y a donc pas de risque d'amorçage dans la chambre 35, dû à un trop grand étirement de l'arc secondaire.
- à la fermeture du disjoncteur (enclenchement), la tige 107 rapproche les contacts 105 et 106 avant tout mouvement relatif des contacts 4 et 5.However, as soon as the end 106A reaches the part 104A, the secondary arc no longer elongates and remains fixed between these two parts. There is therefore no risk of priming in the chamber 35, due to too great a stretching of the secondary arc.
- when the circuit breaker closes (latching), the rod 107 brings the contacts 105 and 106 closer before any relative movement of the contacts 4 and 5.

De la sorte, les contacts secondaires sont fermés avant les contact d'arc, de sorte qu'il ne peut y avoir d'amorçage à l'enclenchement.In this way, the secondary contacts are closed before the arcing contacts, so that there can be no initiation on engagement.

Le disjoncteur de l'invention ne nécessite qu'une faible énergie de manoeuvre pour toutes les valeurs de courant à couper. Le nombre d'éléments est faible et ils sont tous de révolution ce qui assure une construction économique et un montage facile et rapide. Sa conception permet d'éliminer tout risque d'amorçage.The circuit breaker of the invention requires only a low operating energy for all the current values to be cut. The number of elements is low and they are all of revolution which ensures an economical construction and an easy and fast assembly. Its design eliminates any risk of priming.

Claims (9)

1/ Disjoncteur à haute tension à gaz diélectrique sous pression, du type comprenant au moins une chambre de coupure comportant une enveloppe isolante remplie dudit gaz à l'intérieur de laquelle sont placés un ensemble comportant un contact principal fixe (2) et un contact d'arc fixe (4), un ensemble mobile comportant notamment un contact principal mobile (7) et un contact d'arc mobile (5), la chambre de coupure comportant en outre un cylindre de soufflage débouchant dans une buse de soufflage et une paire de contacts secondaires, caractérisé en ce qu'il comprend des premiers moyens (37, 38, 104) pour limiter la distance maximale de séparation des contacts secondaires à une valeur inférieure à la distance maximale de séparation des contacts d'arc et des seconds moyens (6C, 101) pour éviter tout amorçage à l'enclenchement.1 / High voltage circuit breaker with pressurized dielectric gas, of the type comprising at least one breaking chamber comprising an insulating envelope filled with said gas inside which are placed an assembly comprising a fixed main contact (2) and a contact d fixed arc (4), a movable assembly comprising in particular a movable main contact (7) and a movable arc contact (5), the interrupting chamber further comprising a blowing cylinder opening into a blowing nozzle and a pair of secondary contacts, characterized in that it comprises first means (37, 38, 104) for limiting the maximum separation distance of the secondary contacts to a value less than the maximum separation distance of the arcing contacts and the second means (6C, 101) to avoid any initiation on switching on. 2/ Disjoncteur selon la revendication 1 caractérisé en ce que ledit cylindre de soufflage est délimité par un premier tube (5) constituant le contact d'arc mobile, un second tube (7) constituant le contact principal fixe et un piston fixe (14), le tube (5) constituant le contact d'arc mobile et un tube (15) lié à l'ensemble fixe et concentrique au tube précité délimitant, de l'autre côté du piston (14) fermant le cylindre de soufflage, un volume (35, 35B) variable fermé d'un côté par le dit piston de fermeture (22) et de l'autre par un piston annulaire d'extrémité (42) lié au tube (5) constituant le contact d'arc mobile et glissant le long dudit tube (15) lié à l'ensemble fixe, ledit volume enfermant lesdits contacts secondaires, un premier contact secondaire (30) étant solidaire dudit tube (15) lié à l'ensemble fixe, le second contact secondaire (31) étant entraîné par le tube (5) constituant le contact d'arc mobile, le second contact secondaire (31) étant assujetti à se déplacer entre une première et une seconde positions fixes le long du tube (5) constituant le contact d'arc mobile.2 / A circuit breaker according to claim 1 characterized in that said blowing cylinder is delimited by a first tube (5) constituting the movable arcing contact, a second tube (7) constituting the fixed main contact and a fixed piston (14) , the tube (5) constituting the movable arcing contact and a tube (15) linked to the fixed assembly and concentric with the aforementioned tube delimiting, on the other side of the piston (14) closing the blowing cylinder, a volume (35, 35B) variable closed on one side by said closing piston (22) and on the other by an annular end piston (42) linked to the tube (5) constituting the movable and sliding arcing contact along said tube (15) connected to the fixed assembly, said volume enclosing said secondary contacts, a first secondary contact (30) being integral with said tube (15) linked to the fixed assembly, the second secondary contact (31) being driven by the tube (5) constituting the movable arcing contact, the second secondary contact (31) being subject to move between e first and second fixed positions along the tube (5) constituting the movable arcing contact. 3/ Disjoncteur selon la revendication 2 caractérisé en ce que le second contact secondaire (31) est muni d'un moyen (36, 37) d'encliquetage coopérant avec des gorges (38, 39) pratiquées dans le tube (5) constituant le contact d'arc mobile, pour bloquer ledit second contact secondaire dans lesdites positions fixes.3 / A circuit breaker according to claim 2 characterized in that the second secondary contact (31) is provided with a latching means (36, 37) cooperating with grooves (38, 39) made in the tube (5) constituting the movable arcing contact, for locking said second secondary contact in said fixed positions. 4/ Disjoncteur selon l'une des revendications 1 à 3 caractérisé en ce que l'ensemble fixe porte un contact (48) venant au contact du tube (5) constituant le contact d'arc mobile lorsque le disjonc­teur est ouvert.4 / Circuit breaker according to one of claims 1 to 3 characterized in that the fixed assembly carries a contact (48) coming into contact with the tube (5) constituting the movable arcing contact when the circuit breaker is open. 5/ Disjoncteur selon l'une des revendications 1 à 3 caractérisé en ce que le piston (14) fermant le cylindre de soufflage comprend un clapet (17) n'autorisant le passage du gaz que de l'extérieur vers l'intérieur de ce cylindre.5 / A circuit breaker according to one of claims 1 to 3 characterized in that the piston (14) closing the blowing cylinder comprises a valve (17) allowing the passage of gas only from the outside to the inside of this cylinder. 6/ Disjoncteur selon l'une des revendications 1 à 4 caractérisé en ce que ledit piston annulaire d'extrémité (42) comprend un clapet (44) n'autorisant le passage du gaz que l'extérieur vers l'intérieur du volume (35, 35B) contenant les contacts secondai­res (30, 31).6 / Circuit breaker according to one of claims 1 to 4 characterized in that said annular end piston (42) comprises a valve (44) allowing the passage of gas only outside to the inside of the volume (35 , 35B) containing the secondary contacts (30, 31). 7/ Disjoncteur selon l'une des revendications 1 à 6 caractérisé en ce que le tube (5) constituant le contact d'arc mobile est lié à un tube d'entraînement (6) avec un certain débattement de manière à mettre en coïncidence, à la refermeture du disjoncteur, des trous (46) pratiqué dans le tube constituant le contact d'arc mobile et des trous (47) pratiqués dans ledit tube (6) d'entraînement pour évacuer la surpression du volume (35) contenant les contacts secondaires (30, 31).7 / A circuit breaker according to one of claims 1 to 6 characterized in that the tube (5) constituting the movable arcing contact is linked to a drive tube (6) with a certain clearance so as to coincide, when the circuit breaker is closed again, holes (46) made in the tube constituting the movable arcing contact and holes (47) made in said drive tube (6) to release the excess pressure from the volume (35) containing the contacts secondary (30, 31). 8/ Disjoncteur selon la revendication 1, caractérisé en ce que ledit cylindre de soufflage est délimité par un premier tube (5) constituant le contact d'arc mobile, un second tube (7) constituant le contact principal fixe, ledit tube (5) constituant le contact d'arc mobile et un troisième tube (15) concentrique au tube précité délimitant, de l'autre côté du piston (14) fermant ledit cylindre de soufflage, un volume (35), ledit volume renfermant les contacts secondaires, l'un (105) desdits contacts secondaires étant un tube solidaire dudit troisième tube (15), l'autre (106) desdits contacts secondaires étant solidaire de la tringle de manoeuvre du disjoncteur, mobile par rapport audit contact d'arc mobile, et portant une butée par l'entraînement desdits contacts mobiles, une pièce métallique (104), fixe par rapport audit piston et en contact électrique avec le contact d'arc mobile, étant disposée dans ledit volume (35), de telle sorte que l'arc secondaire a une longueur limitée.8 / A circuit breaker according to claim 1, characterized in that said blowing cylinder is delimited by a first tube (5) constituting the movable arcing contact, a second tube (7) constituting the main fixed contact, said tube (5) constituting the movable arcing contact and a third tube (15) concentric with the aforementioned tube delimiting, on the other side of the piston (14) closing said blowing cylinder, a volume (35), said volume containing the secondary contacts, l one (105) of said secondary contacts being a tube integral with said third tube (15), the other (106) of said secondary contacts being integral with the operating rod of the circuit breaker, movable relative to said movable arcing contact, and carrying a stop by the driving of said movable contacts, a metal part (104), fixed relative to said piston and in electrical contact with the movable arcing contact, being arranged in said volume (35), so that the secondary arc has a limited length. 9/ Disjoncteur selon la revendication 8, caractérisé en ce que ladite pièce métallique (104) est fixée audit piston par un pièce isolante tubulaire (103) munie de rainures parallèles à l'axe du disjoncteur.9 / A circuit breaker according to claim 8, characterized in that said metal part (104) is fixed to said piston by a tubular insulating part (103) provided with grooves parallel to the axis of the circuit breaker.
EP89104558A 1988-03-23 1989-03-15 High-tension switch with a reduced driving energy Expired - Lifetime EP0334181B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89104558T ATE99829T1 (en) 1988-03-23 1989-03-15 HIGH VOLTAGE, LOW DRIVING ENERGY SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8803803 1988-03-23
FR8803803A FR2629260B1 (en) 1988-03-23 1988-03-23 HIGH-VOLTAGE LOW-ENERGY CIRCUIT BREAKER

Publications (2)

Publication Number Publication Date
EP0334181A1 true EP0334181A1 (en) 1989-09-27
EP0334181B1 EP0334181B1 (en) 1994-01-05

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US (1) US4945198A (en)
EP (1) EP0334181B1 (en)
JP (1) JP2577080B2 (en)
CN (1) CN1017578B (en)
AT (1) ATE99829T1 (en)
BR (1) BR8901362A (en)
CA (1) CA1309443C (en)
DE (1) DE68911962T2 (en)
FR (1) FR2629260B1 (en)

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EP0554686A1 (en) * 1992-02-06 1993-08-11 GEC Alsthom T&D AG Gas blast switch
FR2691575A1 (en) * 1992-05-25 1993-11-26 Alsthom Gec High tension circuit breaker of vertical format and filled with dielectric gas such as sulphur hexa:fluoride - uses pairs of fixed and moving contacts opened and closed by common control with top pair being ventilated by gas and bottom pair by oil when contact is broken
EP0779638A1 (en) * 1995-12-14 1997-06-18 Gec Alsthom T & D Sa High voltage circuit breaker with a reduced driving energy
US6207918B1 (en) 1996-07-10 2001-03-27 Siemens Aktiengesellschaft Compressed gas power switch

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FR2647255B1 (en) * 1989-05-17 1993-04-23 Alsthom Gec HIGH VOLTAGE CIRCUIT BREAKER WITH BLOWING DIELECTRIC GAS
FR2764728B1 (en) * 1997-06-12 1999-09-24 Gec Alsthom T & D Sa CLOSING RESISTANCE CIRCUIT BREAKER
FR2947377B1 (en) * 2009-06-29 2011-07-22 Areva T & D Sa DISCHARGE VALVE VALVE FOR DISCHARGING A DIELECTRIC GAS BETWEEN TWO VOLUMES OF A HIGH OR MEDIUM VOLTAGE BREAKER BREAK CHAMBER
CN101930871B (en) * 2010-08-25 2012-11-21 中国西电电气股份有限公司 Arc extinguish chamber with high current-carrying capability for high-voltage switch equipment
EP3155627B1 (en) * 2014-06-13 2019-08-28 ABB Schweiz AG Interrupter driven resistor switch assembly

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661550A1 (en) * 1990-04-26 1991-10-31 Alsthom Gec HIGH VOLTAGE ARC CIRCUIT BREAKER.
EP0456025A1 (en) * 1990-04-26 1991-11-13 Gec Alsthom Sa High voltage circuit interrupter with arc in series
US5160818A (en) * 1990-04-26 1992-11-03 Gec Alsthom Sa Series-arc high tension circuit-breaker
EP0554686A1 (en) * 1992-02-06 1993-08-11 GEC Alsthom T&D AG Gas blast switch
FR2691575A1 (en) * 1992-05-25 1993-11-26 Alsthom Gec High tension circuit breaker of vertical format and filled with dielectric gas such as sulphur hexa:fluoride - uses pairs of fixed and moving contacts opened and closed by common control with top pair being ventilated by gas and bottom pair by oil when contact is broken
EP0779638A1 (en) * 1995-12-14 1997-06-18 Gec Alsthom T & D Sa High voltage circuit breaker with a reduced driving energy
FR2742576A1 (en) * 1995-12-14 1997-06-20 Gec Alsthom T & D Sa HIGH VOLTAGE CIRCUIT BREAKER WITH REDUCED POWER
US6207918B1 (en) 1996-07-10 2001-03-27 Siemens Aktiengesellschaft Compressed gas power switch

Also Published As

Publication number Publication date
CA1309443C (en) 1992-10-27
US4945198A (en) 1990-07-31
FR2629260B1 (en) 1994-07-08
JPH02148526A (en) 1990-06-07
DE68911962T2 (en) 1994-04-28
FR2629260A1 (en) 1989-09-29
EP0334181B1 (en) 1994-01-05
DE68911962D1 (en) 1994-02-17
CN1017578B (en) 1992-07-22
CN1036659A (en) 1989-10-25
ATE99829T1 (en) 1994-01-15
BR8901362A (en) 1989-11-07
JP2577080B2 (en) 1997-01-29

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