EP2686859B1 - Disjoncteur haute tension à isolation dans le gaz - Google Patents

Disjoncteur haute tension à isolation dans le gaz Download PDF

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Publication number
EP2686859B1
EP2686859B1 EP11708497.0A EP11708497A EP2686859B1 EP 2686859 B1 EP2686859 B1 EP 2686859B1 EP 11708497 A EP11708497 A EP 11708497A EP 2686859 B1 EP2686859 B1 EP 2686859B1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
volume
valve
gas
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11708497.0A
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German (de)
English (en)
Other versions
EP2686859A1 (fr
Inventor
Timo Kehr
Olaf Hunger
Jürg Nufer
Daniel Ohlsson
Navid Mahdizadeh
Javier Mantilla
Stephan Grob
Mathias-Dominic Buergler
Nicola Gariboldi
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ABB Technology AG
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ABB Technology AG
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Publication of EP2686859A1 publication Critical patent/EP2686859A1/fr
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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
    • H01H33/86—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid under pressure from the contact space being controlled by a valve
    • 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
    • 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
    • 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
    • H01H33/70—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
    • H01H2033/906—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 with pressure limitation in the compression volume, e.g. by valves or bleeder openings
    • 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
    • H01H2033/908—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 using valves for regulating communication between, e.g. arc space, hot volume, compression volume, surrounding volume

Definitions

  • the invention relates to the field of high voltage engineering and relates to a usable in the voltage range between several kV and several hundred kV, gas-insulated high-voltage circuit breaker according to the preamble of claim 1.
  • Such a switch also called gas blast switch, is used in particular in power distribution networks. It is designed in such a way that, in the event of a separation of the contacts or in the event of a short circuit, a switching arc is blown out with gas and thereby extinguished as quickly as possible.
  • the most commonly used gas for this purpose is SF 6 (sulfur hexafluoride).
  • a switch of the type mentioned is in DE 4211159 A1 and US 5589673 A described.
  • a pressure chamber in which the arc is formed valve-controlled connected to a compression chamber.
  • the compression chamber is connected via a pressure relief valve and a refill valve with a low pressure chamber.
  • the valves are annular and arranged adjacent to one another with an overlap zone.
  • the pressure relief valve is pressed on the low pressure chamber side by a spring in the direction of the compression volume against a valve holder.
  • gas can only flow from the compression volume into the low-pressure space when its pressure is greater than the spring force.
  • this construction is relatively complicated and requires many elements.
  • EP 2270828 A1 a designed as a self-inflating high-voltage circuit breaker, in which between two volumes of its extinguishing chamber, a check valve is arranged.
  • This valve has at least one metallic, flexible plate, which is movable between a valve seat and a stop of the valve within its elastic deformability.
  • the valve is designed to allow the supply of compressed, cool gas from a compression volume into a heating volume exposed to the action of arc gases when the switch is opened, but prevents hot arc gases from flowing from the heating volume into the compression volume. Therefore, a material is used for the at least one plate, which can withstand temperatures up to 2500 ° C.
  • the construction of the gas-insulated high-voltage circuit breaker of the type mentioned is to be simplified and the number of required components can be reduced.
  • the valve plate has at least one hole and at least one held on one side, depending on the pressure of the insulating gas in the compression volume elastically bendable leaf spring, which closes the hole when closing the switch and the hole opens when opening the switch and a guided through the hole flow channel for Insulating gas emerging from the compression volume is limited as soon as the pressure of the compressed insulating gas in the compression volume exceeds the value of the gas pressure in the low-pressure space by at least two bar.
  • the valve Compared to the closest prior art, in which the valve arranged between the compression volume and the low-pressure volume has two annular, overlapping valve plates and a valve spring, the valve only requires a single valve plate in the switch according to the invention. Compared to the prior art, therefore, a valve plate and a spring can be saved. Since now instead of two overlapping valve plates and a spring to be adjusted only a single valve plate is to be installed in the valve, the inventive switch can be made much easier and maintained.
  • this single valve plate has at least one hole and a hole normally closing the leaf spring, which opens only above an overpressure of two bar due to elastic bending the hole and thereby connects the compression volume with the low pressure volume, with this single valve plate not only the targeted filling of Compression volume achieved with fresh insulating gas during the closing of the switch, but at the same time a more than two bar amounting excess pressure in the compression volume is effectively limited when opening the switch.
  • the leaf spring has a relatively high spring constant and, accordingly, a strong restoring force. Therefore, it is not necessary to limit the travel of the leaf spring even when high overpressures by a fixed stop limiting the bending of the leaf spring.
  • the leaf spring can be formed by means of at least one cut in the valve plate. This section can be guided perpendicular to the surface of the valve plate. Alternatively, at least a portion of the at least one cut may be inclined relative to the surface of the valve plate. The angle of inclination should then be no more than 60 °.
  • the valve plate may be made of a spring plate, the thickness of which is selected in relation to the length of the leaf spring so that when bending the leaf spring prevents plastic deformation and the hole is released when the threshold value is exceeded.
  • the valve plate may be formed as an annular disc, and the at least one leaf spring with respect to a center of the annular disc designed as a circular section and have at least three cut into the annular disc sides, of which at least one is radially aligned and at least two are guided concentrically.
  • the annular disc may comprise a plurality of leaf springs, which are each formed with respect to the center of the annular disc as a circular section and each have at least three cut into the annular disc sides, of which at least one is radially aligned and at least two are guided concentrically, wherein each two of the leaf springs are mirror images of each other with respect to a diameter line of the annular disc are arranged.
  • the valve plate and the at least one leaf spring may be formed of a standard spring steel, which is designed as unalloyed or low-alloyed stainless steel.
  • a standard spring steel is only suitable for use at operating temperatures up to about 300 ° C.
  • Fig. 1 shows a cross section along a longitudinal axis 11 of an embodiment of a gas-insulated high-voltage circuit breaker 1 according to the invention.
  • the switch is designed as a self-blowing switch and has a non-illustrated, with an insulating gas, in particular SF 6 , filled by some bar pressure housing that a low-pressure volume 5 limited to the outside.
  • a first and right of the longitudinal axis 11 a second operating state of the switch 1 is shown, which are referred to below filling operation or overpressure operation.
  • the switch 1 has a rated current contact 2c, which is movable in the direction of the longitudinal axis 11 of the switch 1 such that it can come into contact with a rated current contact 2d. Furthermore, the switch has an arcing contact 2a, which is movable in the direction of the longitudinal axis 11 of the switch 1 such that it can come into contact with an arcing contact 2b.
  • the reference numeral 15 is a Arc, which results from the interruption of a current after the separation of the two arcing contacts 2a, 2b. When switching off an operating current, the arc 15 is usually weak. When switching off a short-circuit current but very strong arcs 15 may occur. These two options will be described in more detail later in the description, since they require a separate procedure for extinguishing the arc 15.
  • the extinguishing of the arc 15 is carried out by blowing the arc 15 burning in an arc zone 3 with an extinguishing gas which has a higher pressure than the insulating gas present in the low-pressure volume 5.
  • Extinguishing gas can be formed by the switching arc 15, the arc gases are stored in the high-current phase of the current to be disconnected in a heating volume 19 and flows at zero current through a heating channel 17 in the arc zone 3 and the arc 15 cools.
  • the heating channel 17 is typically formed between an auxiliary nozzle 16a and a main nozzle 16b.
  • Extinguishing gas can be provided when opening the switch at the same time in a compression volume 4, which is part of a driven by a drive A of the switch compression device.
  • the switch according to the invention can also be designed as a buffer switch.
  • the arc gases can then enter directly into the compression volume 4 when opening the switch from the arc zone.
  • the self-inflator shown is the heating volume 19 by means of a check valve 14 separated from the compression volume 4. Both the Doubles- and the buffer switch, however, the compression volume 4 is separated by means of a valve 6 from the low pressure volume 5.
  • the low-pressure volume 5 is generally designed as an exhaust volume, but may also have a volume separated from the exhaust volume, in which even after opening the switch fresh, is stored by exhaust gases largely free insulating gas.
  • a flow 12 When closing the switch, a flow 12 is formed, the insulating gas from the low pressure volume 5 through the valve 6 in the compression chamber 4 leads (left of the axis 11 located part of FIGS. 1 and 1a ).
  • a flow 13 forms as soon as the compression volume 4 has an overpressure of at least two bar relative to the low-pressure volume 5. This flow leads compressed, serving as quenching gas insulating gas from the compression volume 4 in the reverse direction in the low pressure volume 5 (right of the axis 11 located part of FIGS. 1 and 1a ).
  • the valve plate 9 is formed as an annular disc, which is guided around the longitudinal axis 11 of the switch 1.
  • valve plate 9 has a hole 71 and a one-sided, in Dependent on the pressure of the insulating gas in the compression volume 4 elastically bendable leaf spring 7 has.
  • the switch 1 also comprises a subelement 21 containing a piston of the compression device and an upper element 20 containing a cylinder of the compression device.
  • the upper element 20 is displaceably arranged in the direction of the longitudinal axis 11 and the subelement 21 is fixed.
  • the top element 20, to which the arcing contact 2a is attached is displaced in the direction away from the second arcing contact 2b.
  • Fig. 2 shows in the figures a to d different embodiments of the valve plate 9.
  • the valve plates 9 are each designed as an annular disc with an outer edge 18a and an inner edge 18b.
  • the shapes which result from the lines shown within the edges 18a, 18b correspond to a plurality of leaf springs 7.
  • Each leaf spring 7 is cut into the annular disc over the entire thickness of the annular disc.
  • the lines illustrate the incisions in the material of the annular disc.
  • valve plate 9 is interchangeable with another valve plate 9 of different thickness and different shaped leaf springs 7 and holes 71. This allows an adaptation of the switch 1 according to the invention to subsequently explained parameters, such as the gas flow rate and the threshold value of the overpressure.
  • the shapes of the leaf springs 7 are related to the desired maximum gas flow rate in the case of the flow 13 Fig.2 As can be seen, determines the extent of the incisions, which form the leaf springs 7, the flow cross-section of a guided through the valve plate and the flow 13 receiving flow channel. For a given size of the overpressure can be varied by suitable choice of the circumference of the leaf springs 7 or by selecting the size of the flow cross section, the gas flow rate per unit time.
  • the spring constant of the leaf spring 7 changes, wherein the leaf spring 7 preferably has the same thickness as the valve plate 9
  • a thicker leaf spring 7 causes a higher spring constant resp. a higher elastic restoring force and a thinner leaf springs 7 a lower spring constant resp. a lower elastic restoring force.
  • the spring constant or thickness of the leaf spring 7 together with the length of the leaf spring significantly determines the response of the valve 6 against the occurrence of excess pressure in the compression volume 4.
  • Beivier higher spring constant a higher pressure is required to deflect the leaf spring 7. Accordingly, a lower overpressure is needed at a lower spring rate.
  • the thickness and the length resp. Shape of the leaf spring 7 are variables by which the desired threshold value of the overpressure for the realization of the flow 13 is adjustable.
  • the maximum gas flow rate and the threshold value of the overpressure for the formation of the flow 13 in the switch 1 in the simplest manner are adjustable by the exchange of differently shaped valve plates 9.
  • the switch 1 can be designed for use as an outdoor switch or as a metal-enclosed switch.
  • FIG. 3 and 4 which is preferably formed as an annular disc valve plate 9 at least one leaf spring 7, which as a circular ring portion with respect to the center of the valve plate or annular disc with a radial Cut 72 and two concentric sections 73, 74 was cut into the valve plate or washer.
  • annular disc has three leaf springs 7.
  • each leaf spring 7 which also, as explained above, each as a circular ring sections with respect to the center of the annular disc with each pure radial 72 and two concentric sections 73, 74 were cut into the annular disc.
  • Each two of the leaf springs are arranged in mirror image to each other with respect to a diameter line 22 of the annular disc.
  • four leaf springs 7a, 7b, 7c, 7d are shown, wherein a first and a second leaf spring 7a, 7b and a third and a fourth leaf spring 7c, 7d are each arranged in mirror image to each other with respect to the diameter line 22 of the annular disc.
  • valve plate 9 in particular prevents a propeller effect, which could arise in an orientation of all spring elements in a clockwise or counterclockwise direction.
  • the opposing orientation of each two spring elements prevents the annular disc could be placed in a rotational movement during the formation of the gas flow 13.
  • an odd number of leaf springs can be selected.
  • an annular disc could after Fig. 3
  • two oppositely disposed leaf springs 7, wherein the orientation of the unassigned leaf springs would not matter because frictional forces would sufficiently counteract a remaining rotational tendency of the annular disc.
  • the check valve prevents hot arc gases flowing into the heating volume 19 from entering the compression volume 4 can.
  • the valve 6 is therefore not exposed to excessively high temperatures.
  • the valve plate 9 and accordingly also the at least one leaf spring 7 can therefore be formed from a standard spring steel.
  • Particularly suitable is a standard spring steel made of plain or low-alloy stainless steel, such as a stainless steel commercially available under the short name C60S, C75S or 51CrV4.
  • the cuts 72 to 74 are like out Figure 5 can be seen generally perpendicular to the surface of the valve plate 9. On the cutting tool no particularly high demands are made, so that then the valve plate 9 and thus the switch 1 can be made particularly economical.
  • the cuts 72 to 74 relative to the surface of the valve plate 9 can also be guided inclined.
  • the angle of inclination relative to the surface of the valve plate 9 is dimensioned so that the leaf spring 7 bend upon reaching the overpressure of at least 2 bar and the hole 71 can release.
  • the leaf spring rests with an outer edge 76 which determines its contour and has an obliquely folded edge on an inner edge 75 which determines the contour of the hole 71.
  • the inclination angle, starting from the 90 ° vertical section, is less than 60 °, typically less than 50 ° and greater than 20 °, the width of the edges 75, 76 is effectively extended and, accordingly, the leakage losses in the compression volume 4 are reduced.
  • the gas volume increases as soon as the gas in the arc zone 3 is substantially heated by an arc 15 which is produced when the arc contacts 2 a, 2 b are properly disconnected.
  • the gas pressure in the arc zone 3 remains at low arc 15, so at weak currents to be interrupted, smaller than the gas pressure in the heating volume 19. Therefore, the gas flows in this case always from the compression volume 4 into the heating volume 19 and through the Heating channel 17 in the arc zone 3, where it inflates the arc 15 in the current zero crossing.
  • the pressure in the compression volume 4 increases during the downward movement of the upper element 20 until the pressure of the compressed insulating gas in the compression space 4 exceeds the value of the gas pressure in the low-pressure space 5 by at least two bars. Above this pressure, the leaf spring 7 releases the hole 71 and then delimits a guided through the hole 71 flow channel for emerging from the compression volume 4 insulating. Upon release of the hole 71, the leaf spring 7 clamped on one side is deflected elastically downwards into the low-pressure volume 5 and thus forms the flow channel for the flow 13 directed from the compression volume 4 into the low-pressure volume. An impermissibly high overpressure in the compression space 4 is thus avoided. At the same time as well as the applied by the drive A compression work is limited.

Landscapes

  • Circuit Breakers (AREA)
  • Gas-Insulated Switchgears (AREA)

Claims (12)

  1. Disjoncteur haute tension isolé au gaz (1), comprenant :
    un dispositif de compression actionné par un entraînement (A) du disjoncteur (1) avec un volume de compression (4) rempli de gaz isolant, dans lequel le gaz isolant est comprimé lors de l'ouverture du disjoncteur pour fournir du gaz d'extinction,
    un volume basse pression (5) rempli de gaz isolant, et
    une soupape (6) reliant le volume de compression et le volume basse pression l'un à l'autre, à travers laquelle, lors de la fermeture du disjoncteur, du gaz isolant s'écoule hors du volume basse pression (5) dans le volume de compression (4) et, lors de l'ouverture du disjoncteur au-dessus d'une valeur seuil de la pression de gaz d'extinction, du gaz isolant s'écoule hors du volume de compression (4) dans le sens inverse dans le volume basse pression (5),
    la soupape (6) présentant les éléments suivants :
    un corps de soupape (30) guidé à travers la paroi de l'espace de compression (4) avec un passage de gaz (31) reliant le volume de compression et le volume basse pression et un siège de soupape (32) comprenant le passage de gaz (31),
    une plaque de soupape (9) actionnée par le gaz isolant, montée de manière déplaçable dans le corps de soupape (30), qui repose sur le siège de soupape (32) lors de l'ouverture du disjoncteur, et
    une butée (8) intégrée dans le corps de soupape (30), qui limite le mouvement de la plaque de soupape (9) lors de la fermeture du disjoncteur, la plaque de soupape (9) présentant au moins un trou (71),
    caractérisé en ce que
    la plaque de soupape présente au moins un ressort à lame (7) retenu d'un côté, déformable élastiquement en fonction de la pression du gaz isolant dans le volume de compression (4), qui,
    lors de la fermeture du disjoncteur, ferme le trou (71) et lors de l'ouverture du disjoncteur libère le trou (71) et limite un canal d'écoulement guidé à travers le trou (71) pour le gaz isolant (13) sortant du volume de compression (4), dès que la pression du gaz isolant comprimé dans le volume de compression (4) dépasse la valeur de la pression de gaz dans le volume basse pression (5) d'au moins deux bar.
  2. Disjoncteur selon la revendication 1, caractérisé en ce que le ressort à lame (7) est formé à l'aide d'au moins une coupe (72, 73, 74) dans la plaque de soupape (9).
  3. Disjoncteur selon la revendication 2, caractérisé en ce que l'au moins une coupe (72, 73, 74) est guidée perpendiculairement à la surface de la plaque de soupape (9).
  4. Disjoncteur selon la revendication 3, caractérisé en ce qu'au moins une portion de l'au moins une coupe (72, 73, 74) est guidée de manière inclinée par rapport à la surface de la plaque de soupape (9).
  5. Disjoncteur selon la revendication 4, caractérisé en ce que l'angle d'inclinaison est de 60° au maximum.
  6. Disjoncteur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la plaque de soupape (9) est fabriquée en une tôle à ressort dont l'épaisseur, par rapport à la longueur du ressort à lame (7), est choisie de telle sorte que lors de la torsion du ressort à lame (7), une déformation plastique soit évitée et lors du dépassement de la valeur seuil, le trou (71) soit libéré.
  7. Disjoncteur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la plaque de soupape (9) est réalisée sous forme de rondelle annulaire et en ce que l'au moins un ressort à lame (7) est réalisé par rapport à un centre de la rondelle annulaire sous forme de section circulaire et présente au moins trois côtés entaillés dans la rondelle annulaire, dont au moins un (72) est orienté radialement et au moins deux (73, 74) sont guidés concentriquement.
  8. Disjoncteur selon la revendication 7, caractérisé en ce que la rondelle annulaire présente une pluralité de ressorts à lame (7) qui sont réalisés, par rapport au centre de la rondelle annulaire, à chaque fois sous forme de section circulaire et qui présentent à chaque fois au moins trois côtés entaillés dans la rondelle annulaire, dont au moins un (72) est orienté radialement et au moins deux (73, 74) sont guidés concentriquement, à chaque fois deux des ressorts à lame (7) étant disposés suivant une symétrie spéculaire l'un par rapport à l'autre par rapport à une ligne diamétrale (22) de la rondelle annulaire.
  9. Disjoncteur selon l'une quelconque des revendications 1 à 8, comprenant un volume de chauffage (19) connecté au volume de compression (4) par le biais d'un clapet antiretour (14), pour recevoir les gaz d'arc électrique, caractérisé en ce que la plaque de soupape (9) et l'au moins un ressort à lame (7) sont formés en acier à ressort standard.
  10. Disjoncteur selon la revendication 9, caractérisé en ce que l'acier à ressort standard est un acier noble non allié ou un acier noble faiblement allié.
  11. Disjoncteur selon la revendication 10, caractérisé en ce que l'acier noble est un matériau disponible dans le commerce sous les dénominations abrégées C60S, C75S ou 51CrV4.
  12. Disjoncteur selon l'une quelconque des revendications 1 à 11, caractérisé en ce que la déformation élastique du ressort à lame (7) est limitée, sans l'utilisation d'une butée, uniquement par la force de rappel du ressort à lame (7).
EP11708497.0A 2011-03-17 2011-03-17 Disjoncteur haute tension à isolation dans le gaz Active EP2686859B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/054068 WO2012123032A1 (fr) 2011-03-17 2011-03-17 Disjoncteur haute tension à isolation dans le gaz

Publications (2)

Publication Number Publication Date
EP2686859A1 EP2686859A1 (fr) 2014-01-22
EP2686859B1 true EP2686859B1 (fr) 2014-11-26

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EP11708497.0A Active EP2686859B1 (fr) 2011-03-17 2011-03-17 Disjoncteur haute tension à isolation dans le gaz

Country Status (7)

Country Link
US (1) US8822868B2 (fr)
EP (1) EP2686859B1 (fr)
KR (1) KR20140023318A (fr)
CN (1) CN103443894B (fr)
BR (1) BR112013023368A2 (fr)
MX (1) MX2013010202A (fr)
WO (1) WO2012123032A1 (fr)

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DE202016107299U1 (de) * 2016-12-22 2018-03-27 Reinz-Dichtungs-Gmbh Temperierungsvorrichtung mit Federelement
DE102017207422A1 (de) * 2017-05-03 2018-11-08 Siemens Aktiengesellschaft Trennschalter
EP3407370B1 (fr) * 2017-05-24 2020-04-01 General Electric Technology GmbH Interrupteur à gaz comprimé comprenant une chambre de stockage de gaz optimisée
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DE102019212109A1 (de) 2019-08-13 2021-02-18 Siemens Aktiengesellschaft Elektrische Schalteinrichtung
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EP4224504B1 (fr) * 2022-02-02 2025-04-02 Hitachi Energy Ltd Disjoncteur haute tension
EP4415017A1 (fr) * 2023-02-07 2024-08-14 General Electric Technology GmbH Disjoncteur comportant une gestion améliorée du flux gazeux

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MX2013010202A (es) 2013-09-26
US8822868B2 (en) 2014-09-02
CN103443894B (zh) 2016-08-17
CN103443894A (zh) 2013-12-11
EP2686859A1 (fr) 2014-01-22
WO2012123032A1 (fr) 2012-09-20
US20140014623A1 (en) 2014-01-16
BR112013023368A2 (pt) 2016-12-13

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