EP0334008B1 - Interrupteur mono-pression à SF6 - Google Patents

Interrupteur mono-pression à SF6 Download PDF

Info

Publication number
EP0334008B1
EP0334008B1 EP89102110A EP89102110A EP0334008B1 EP 0334008 B1 EP0334008 B1 EP 0334008B1 EP 89102110 A EP89102110 A EP 89102110A EP 89102110 A EP89102110 A EP 89102110A EP 0334008 B1 EP0334008 B1 EP 0334008B1
Authority
EP
European Patent Office
Prior art keywords
opening
ventilation
pressure
gas
opens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89102110A
Other languages
German (de)
English (en)
Other versions
EP0334008A3 (fr
EP0334008A2 (fr
Inventor
Herbert Dr. Karrenbauer
Andreas Dipl.-Ing. Schiemann
Hans-Gerd Dr. Thiel
Gerd Dipl.-Ing. Wachsmuth
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0334008A2 publication Critical patent/EP0334008A2/fr
Publication of EP0334008A3 publication Critical patent/EP0334008A3/fr
Application granted granted Critical
Publication of EP0334008B1 publication Critical patent/EP0334008B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01H33/901—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
    • 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 an SF6 indentation switch with a switching chamber filled with insulating gas, at least two switching elements, at least one of which is movable by a drive rod, a compression device for the insulating gas which can be actuated by this switching movement and whose compression space is delimited by two opposite, relatively movable floors, wherein a pressure chamber is arranged between the insulating material nozzle and the floor facing it, which has an outflow opening that can be closed by a check valve and an inflow opening that can be closed in the direction of the compression device in the direction of the switching path, and a passage that is arranged parallel to the pressure chamber and that in the part facing away from the outflow opening the pressure chamber opens by means of a closable opening and starts from CH-A-568'649.
  • High-voltage switches are usually designed as auto-blow switches filled with insulating gas.
  • the contacts are separated and the arc is blown with the insulating gas, usually SF6, until it goes out.
  • the compression required for this blowing is achieved either by means of a compression device or by means of the thermal energy of the arc itself.
  • the interrupters are either surrounded by a fully insulated metal housing or by a porcelain insulator.
  • Conventional SF6 impression switches have a compression device which essentially consists of a compression space formed by a piston and cylinder. In the area of low-current arcs, such as occur under normal operating conditions, such SF6 impression switches have a very good function. These low-current arcs have such a low thermal energy that there is no appreciable gas expansion due to heating. Blowing by the compression device is neither prevented, nor is the switching movement impaired, and the switching speed is thus reduced. When switching off high-current arcs, such as occur in short-circuit cases, the function of this SF6 impression switch is not so optimal. The high thermal energy of the arc leads to a very strong gas expansion due to the heating.
  • the gas which is under very high pressure, penetrates into the compression chamber and thus slows down the switching movement, and in the case of very powerful arcs, even leads to a brief backward movement.
  • the gas that has penetrated into the compression chamber is partially lost for the extinguishing process, since the cylinder only ejects the gas that has penetrated into it when the pressure difference in the direction of the switching path permits this.
  • an SF6 impression switch of the type mentioned is known, which is intended to improve the blowing of high-current arcs, a pressure chamber being acted upon by the compression device with cold quenching gas until the pressure of the expanding gas is increased by the Compressor generated pressure exceeds. Due to these changed pressure conditions, the check valve of the outflow opening and the valve of the inflow opening of the pressure chamber close and the closable opening of a passage lying parallel to the pressure chamber opens, whereby expanding hot gas flows from the switching path through the passage into the part of the pressure chamber which faces away from the outflow opening . When the pressure of the expanding gas decreases, the check valve opens and the arc is first blown with the cold gas cushion before the hot gas underneath flows in.
  • the invention is therefore based on the object of making an SF6 impression switch with a safe arc extinguishing by a higher switching speed and better blowing with a gas that has an optimal density available.
  • the SF6 impression switch according to the invention has the advantage of blowing on weaker arcs, as is done in a conventional SF6 impression switch in an expedient and tried-and-tested manner, but fully adjusts to the significantly increased requirements in the case of high-current arcs.
  • the gas is pre-compressed by a compression device, which creates a gas cushion of cold, high-density quenching gas.
  • This gas cushion is post-compressed by the gas pressure wave, which causes the gas expansion of the high-current arc.
  • a closure member is used, the change in position of which can be controlled by the shift path covered.
  • This post-compression takes place in such a way that the hot gas is first cooled in the gas storage space and then flows into the pressure chamber in such a way that a stratification is formed in it, in which the pre-compressed, high-density gas cushion is first available for blowing.
  • the cooled gas forms a layer in the lower part of the pressure chamber because it only flows in after the cold gas has been compressed. It primarily serves to increase the pressure and is only used for post-blowing after the arc has been extinguished in order to avoid reignition.
  • the blowing begins as soon as a sufficient distance between the switch contacts to extinguish the arc is reached.
  • the invention has the advantage over the conventional SF6 impression switches that there is no reduction in the switching speed due to the penetration of gas into the compression space as a result of gas expansion by means of high-current arcs. As a result of the post-compression in the pressure chamber by means of the expanding gas, this energy is still available for blowing the high-current arcs and does not have a braking effect on the drive.
  • Fig. 1 shows an embodiment, the SF6 impression switch is shown in a partial view, in which the essential parts are shown by means of a section extending to the axis of rotation.
  • This exemplary embodiment contains the parts that are customary in an SF6 impression switch:
  • This compression device as is usual with SF6 indentation switches, consists of a compression cylinder 17 and two trays 1 and 2, which move towards one another when switched off and thus compress the insulating gas in a compression space 11.
  • the compression cylinder 17 is connected as a fixed part to the base 2 and the base 1, which is connected to the switching piece 21 and the drive rod 19, is drawn into the compression cylinder 17.
  • a pressure chamber 3 is located between the base 1 and the insulating material nozzle 12 and a gas storage space 9 is separated therefrom by a partition 25.
  • the pressure chamber 3 is provided in the direction of the switching path 4 with an outflow opening 5, in which an insulating gas heated by the arc flows in a check valve 6 is prevented.
  • the gas storage space 9 has an inlet 26 in the direction of the switching path 4 and an opening 10 which opens into the pressure chamber 3 on the side opposite the outflow opening 5.
  • the bottom 1 is provided with an inflow opening 7, which connects the compression space 11 to the pressure chamber 3.
  • a closure element 8 is arranged in the region of the opening 10 and the inflow opening 7. This closure member 8 in Fig. 1 is designed as a slidable ring with an L-shaped cross section.
  • a first position in which the axial leg of the closure element 8 is pushed in a sealing manner in front of the opening 10 and opens the inflow opening 7.
  • a second position in which the closure member 8 is located in the illustration in FIG. 1, the opening 10 is opened and the inflow opening 7 is closed by the radial leg of the closure member 8. If no pressure differences act on the closure member 8, it is held by a spring 24 in this second position shown.
  • the bottom 2 is designed as a fixed component, the drive rod 19 passing through a hole in this bottom and a seal ensuring the gas tightness of this passage.
  • a vent hole 13 is arranged, which is provided with a vent valve 14, which opens against the pressure of a spring 14 '.
  • the bottom 2 contains a ventilation hole 15 with a valve 16, which is arranged so that the compression chamber 11 is ventilated when it is switched on.
  • the SF6 impression switch shown has the following function:
  • the gas is compressed by the switching movement, mediated by the drive rod 19, between the base 1 connected to the drive rod 19 and the fixed base 2 in the compression space 11, passes through the inflow opening 7 and flows through the opening 5 to the arc 23 around it to blow at zero crossing.
  • the quenching gas opens the closure element 8 in this way, flows through the pressure chamber 3 and, after leaving the pressure chamber 3 through the outflow opening 5, finally reaches the switching path 4 in order to blow the arc 23.
  • the outflow opening 5 is not closed by the check valve 6, since in the case of low-current arcs there is no gas pressure wave so strong that a gas flow is formed which flows from the switching path in the direction of the compression device.
  • the SF6 impression switch adapts to the conditions caused by the gas expansion and uses this gas expansion to produce the required extinguishing gas pressure:
  • 11 insulating gas is compressed in the compression chamber in the manner described above through the inflow opening 7 into the pressure chamber 3, the closure member 8 being opened by the gas flow.
  • the arc 23 is drawn in the switching path 4, whereby extinguishing gas expands and, as shown by the curved arrow, flows in the direction of the compression device.
  • the outflow opening 5 is closed by the check valve 6 and the pressurized gas flows into the gas storage space 9.
  • the closed check valve 6 in the pressure chamber 3 and the compression chamber 11 produce reproducible pressure conditions, so that a certain pressure can be assigned to a certain distance between the switching contacts 21 and 22.
  • the pressure in the compression space 11 drops sharply, which has the consequence that the closure member 8 moves into the position in which it closes the inflow opening 7 with its radial leg and at the same time opens the opening 10.
  • the drive is completely relieved of the pressure force in the compression space 11 by venting it, so that there is no braking of the switching movement or even a backward movement, on the contrary - the switching movement is even accelerated by the relief.
  • the drive thus only applies the energy for the pre-compression of the gas in the pressure chamber 3.
  • the expanded gas which is stored in the gas storage space 9 and thereby cooled, flows through the opening 10 into the pressure chamber 3.
  • the cold gas pre-compressed in the pressure chamber 3 is post-compressed by the gas pressure wave coming from the gas storage space 9, which cold gas of high density lies in front of the outflow opening 5 in order to serve the blowing at the moment of zero current crossing which is decisive for the extinguishing of the arc.
  • the check valve 6 opens and the cold gas cushion flows out of the outflow opening 5 in the direction of the switching path 4 in order to blow the arc there. In this way, optimal extinguishing conditions were created while relieving the load on the drive.
  • Fig. 2 shows an embodiment in which the compression cylinder 17 is fixedly connected to the floor 1 and is pulled by the switching movement mediated by the drive rod 19 over the fixed floor 2.
  • the vent valve 14 is opened against the force of a spring 14 ⁇ by a pin 18.
  • the length of this pin 18 is dimensioned such that the vent valve 14 lifts the valve plate of the vent valve 14 from its closed position when a sufficient distance between the switching contacts 20 and 21 is reached for arc quenching.
  • the spring 14 ⁇ must have a larger spring constant than the spring 14 'described in Fig. 1'.
  • the closure member 8 is also designed as an L-shaped ring, but the axial leg is longer and opens the opening 10 in the second position through holes. The remaining parts correspond in structure and function to those already described for FIG. 1
  • Fig. 2 serves to make it clear that different configurations of the floors 1 and 2 and the cylinder 17 and the control of the closure member 8 are possible. However, further deviating configurations are also conceivable, for example an embodiment in which the drive rod is connected to the base 2 and the switching piece 20 and the other parts are fixed.
  • FIG. 3 A third embodiment is shown in FIG. 3. This has an L-shaped closure member 8, which is held by an embedded spring 24 'in the first position as the rest position.
  • the spring constant of this spring 24 ' is designed so that when the compression chamber 11 is vented, the pressure in the pressure chamber 3 presses the closure member 8 into the second position in which the inflow opening 7 is closed and the opening 10 is opened at the same time.
  • the ventilation of the compression space 11 is brought about by the fact that the floor 2 runs in the course of its switching-on movement via a recess 22 arranged on the compression cylinder 17 and / or on the drive rod 19. This recess 22 must be arranged so that the ventilation takes place when the switch contacts 20, 21 are at a sufficient distance to achieve an arc extinguishing.
  • 3 shows the position at which the ventilation of the compression space 11 begins.
  • the bottom 2 in FIG. 3 is provided with a ventilation hole 15, which is closed by a check valve 16 during the switch-off movement.
  • Check valve 16 and ventilation hole 15 serve to vent the compression chamber 11 during the switch-on movement.
  • the ventilation hole 15 with the check valve 16 can also be located at another location, e.g. be arranged on the compression cylinder 17 so that the bore 15 opens into a part of the compression space 11, which remains in the off position.
  • a check valve 27 is provided in the area of the opening 10 of the gas storage space 9, which prevents insulating gas from flowing back through the opening 10 into the gas storage space 9. This check valve is used when switching large currents to prevent a pressure loss of the pressure chamber 3 through the opening 10 into the gas storage space 9 during the second phase of the switch-off movement.
  • the check valve 6 of the outflow opening 5 has an additional valve plate 6 ', which closes the cross section of the inlet 26 between the switching path 4 and the gas storage space 9 when the check valve 6 is open.
  • This valve plate 6 ' ensures that the hot gas which has entered the gas storage space 9 as a result of strong gas expansion cannot flow back into the direction of the switching path 4 when the current approaches the zero crossing and the resulting opening of the check valve 6, which would result in a mixture with the cold gas from the pressure chamber 3 and thereby worsen the extinguishing properties of this gas.
  • Fig. 4 shows the closure member 8 'formed as at least one flap that closes the opening 10 in the first position and opens the inflow opening 7 to the pressure chamber 3 and closes the inflow opening 7 in the second position and opens the opening 10 to the pressure chamber 3.
  • the flap-shaped closure member 8 ' can be arranged, for example, with its fulcrum in the region of the drive rod 9, so that it rests in a horizontal position on the floor 1 and closes the opening 7 and at the same time opens the opening 10 to the pressure chamber 3.
  • Fig. 5 shows the formation of the closure member 8 ⁇ as a sliding ring.
  • This displaceable ring has a sliding surface on the inside to the drive rod 19, which is gas-tight.
  • the closure member 8 ⁇ is drawn in its second position, in which it rests with its outer end on the floor 1 and thereby closes the inflow opening 7.
  • the closure member 8 ⁇ is moved upward and abuts with its outer end on the partition wall 25, whereby the inflow opening 7 is connected to the pressure chamber 3 and closes the opening 10.
  • the closure member 8 ⁇ is also designed as a displaceable ring, with the difference that the displaceable ring has a more plate-like shape and the inflow opening 7 can be arranged further out as seen from the axis of symmetry.
  • the closure member 8 ⁇ is also in a position on the floor 1, close! the opening 7, and strikes in its other position on the partition 25, whereby the opening 10 is closed, the other opening being opened.
  • a spring is arranged, which causes the adjustment to take place only when the pressure P2 is corresponding to the spring strength above the pressure P3, the training of the closure member, as shown in Figs. 4 to 6 are shown, are connected to one of the aforementioned vents of the compression space 11 and this ventilation is controlled so that there is then a venting of the compression space 11 to effect the displacement of the closure member 8 ', 8 ⁇ when the switching movement has progressed so far that further compression of the gas can no longer benefit the arc quenching, since the sufficient distance for the arc quenching has been reached.

Landscapes

  • Circuit Breakers (AREA)

Claims (10)

1. Interrupteur mono-pression à SF6 muni d'une chambre de commutation remplie de gaz isolant, d'au moins deux contacts de commutation de commande (20, 21) dont un au minimum est actionnable par l'intermédiaire d'une tige de commande (19), d'une installation de compression (1, 2, 17) pour le gaz isolant, commandable par cette opération de couplage et dont la chambre de compression (11) est limitée par deux fonds opposés et manoeuvrables, l'un par rapport à l'autre (1, 2), une chambre de compression (3) étant disposée entre la tuyère isolante (12) et le fond (1) qui est tourné vers elle, chanbre de compression (3) qui présente, dans le sens de la longueur de coupure (4), un orifice d'évacuation (5) pouvant être fermé par une soupape de retenue (6) et, sur le fond (1), une admission (7) pouvant être fermée dans le sens de l'installation de compression par un obturateur (8, 8′, 8˝), et muni également d'un passage disposé parallèlement à la chambre de compression (3), qui aboutit dans la partie de la chambre de compression (3) opposée à l'orifice d'évacuation (5), au moyen d'une ouverture pouvant être fermée (10), caractérisé en ce que le passage est congru en tant que chambre de stockage du gaz (9) reliée à la longueur de coupure (4), chambre de stockage du gaz qui s'étend jusqu'à l'ouverture (10) pouvant être fermée au moyen de l'obturateur (8, 8′, 8˝) et qui aboutit dans la partie de la chambre de compression (3) opposée à l'orifice d'évacuation (5), en ce que, dans une première position de l'obturateur (8, 8′, 8˝), l'admission (7) est ouverte et l'ouverture (10) fermée et en ce que, dans une deuxième position de l'obturateur (8, 8′, 8˝), l'admission (7) est fermée et l'ouverture (10) ouverte, l'obturateur (8, 8′, 8˝) se trouvant dans la première position lors de l'extinction d'arcs électriques à courant faible et d'abord dans la première position lors de l'extinction d'arcs électriques à courant intense, puis dans la deuxième position, après obtention d'un écartement suffisant pour l'extinction de l'arc électrique, entre les contacts de commutation de commande (20, 21).
2. Interrupteur mono-pression à SF6 selon la revendication 1, caractérisé en ce que l'obturateur (8) est congru en tant qu'anneau mobile axialement à section en L, le côté axial de l'obturateur (8) qui se trouve dans la première position étant poussé devant l'ouverture (10), ce qui la rend hermétique, et l'admission (7) étant débloquée, et, dans la deuxième position, l'ouverture (10) étant débloquée et l'admission (7) fermée par le côté radial, et en ce que le déplacement axial de l'anneau en L est provoqué par une aération de la chambre de compression (11).
3. Interrupteur mono-pression à SF6 selon la revendication 1, caractérisé en ce que l'obturateur (8′) est congru comme au moins une trappe, de telle sorte que, dans la première position, elle ferme l'ouverture (10) et ouvre l'admission (7) et que, dans la deuxième position, elle ferme l'admission (7) et ouvre l'ouverture (10), un ressort (24′) maintenant l'obturateur (8′) dans sa première position jusqu'à l'obtention d'une pression prédéfinie (P2) et en ce que le changement de position de l'obturateur (8′) est provoqué par une aération de la chambre de compression.
4. Interrupteur mono-pression à SF6 selon la revendication 1, caractérisé en ce que l'obturateur (8˝) est congru en tant qu'anneau déplaçable qui, dans la première position, ferme l'ouverture (10) et ouvre l'admission (7) et, dans la deuxième position, ferme l'admission (7) et ouvre l'ouverture (10), un ressort (24′) maintenant l'obturateur (8˝) dans sa première position jusqu'à l'obtention d'une pression prédéfinie (P2) et en ce que le changement de position de l'obturateur (8˝) est provoqué par une aération de la chambre de compression.
5. Interrupteur mono-pression à SF6 selon les revendications 2 à 4, caractérisé en ce que l'aération de la chambre de compression (11) est provoquée par une prise d'air (13) avec une soupape de purge d'air (14) qui s'ouvre contre l'effet d'un ressort (14′), la constante de rappel étant définie de telle sorte que l'ouverture de la soupape de purge d'air (14) a lieu avec une pression qui apparaît dans la chambre de compression (11) lorsque, la soupape de retenue (6) étant fermée, l'écartement suffisant pour l'extinction de l'arc électrique, entre les contacts de commutation de commande (20, 21) est atteint.
6. Interrupteur mono-pression à SF6 selon les revendications 2 à 4, caractérisé en ce que l'aération de la chambre de compression (11) est provoquée par une prise d'air (13) avec une soupape de purge d'air (14), en ce que la soupape de purge d'air (14) s'ouvre contre l'effet d'un ressort (14˝) et en ce qu'une goupille (18) est reliée au fond (1) goupille qui est dimensionnée dans sa longueur de telle sorte qu'elle ouvre la soupape de purge d'air (14) lorsqu'un écartement suffisant pour l'extinction de l'arc électrique, entre les contacts de commutation de commande (20, 21), est atteint.
7. Interrupteur mono-pression à SF6 selon les revendications 2 à 4, caractérisé en ce que, lorsqu'un écartement suffisant pour l'extinction de l'arc électrique, entre les contacts de commutation de commande (20, 21) est atteint, le fond (1) se meut au-dessus d'un évidement (22) disposé sur le cylindre de compression (17) et/ou sur la tige de commande (19).
8. Interrupteur mono-pression à SF6 selon l'une des revendications 1 à 7, caractérisé en ce que la soupape de retenue (6) présente une plaque de soupape supplémentaire (6′) qui ferme la section de l'admission (26) entre la longueur de coupe (4) et la chambre de stockage du gaz (9), lorsque la soupape de retenue (6) est ouverte.
9. Interrupteur mono-pression à SF6 selon l'une des revendications 1 à 8, caractérisé en ce que la chambre de compression (11) est aérée par une prise d'air (15) munie d'une soupape de retenue (16), lors de l'opération de mise en circuit.
10. Interrupteur mono-pression à SF6 selon l'une des revendications 1, 2 ou 6 à 9, caractérisé en ce que, dans la zone de l'ouverture (10) de la chambre de stockage du gaz (9), une soupape de retenue (27) est disposée de telle sorte qu'aucun gaz isolant ne peut affluer dans la chambre de stockage du gaz (9) par l'ouverture (10).
EP89102110A 1988-03-25 1989-02-08 Interrupteur mono-pression à SF6 Expired - Lifetime EP0334008B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3810091 1988-03-25
DE3810091A DE3810091A1 (de) 1988-03-25 1988-03-25 Sf(pfeil abwaerts)6(pfeil abwaerts)-eindruckschalter

Publications (3)

Publication Number Publication Date
EP0334008A2 EP0334008A2 (fr) 1989-09-27
EP0334008A3 EP0334008A3 (fr) 1991-01-23
EP0334008B1 true EP0334008B1 (fr) 1992-04-22

Family

ID=6350663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102110A Expired - Lifetime EP0334008B1 (fr) 1988-03-25 1989-02-08 Interrupteur mono-pression à SF6

Country Status (2)

Country Link
EP (1) EP0334008B1 (fr)
DE (2) DE3810091A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942489C2 (de) * 1989-12-22 1994-03-10 Licentia Gmbh Druckgasschalter
FR2704976B1 (fr) * 1993-05-07 1995-06-23 Gec Alsthom T & D Sa Disjoncteur a gaz de soufflage a haute ou moyenne tension.
DE19547522C1 (de) * 1995-12-08 1997-01-16 Siemens Ag Hochspannungs-Leistungsschalter mit einem Gasspeicherraum
DE10226044A1 (de) * 2002-06-12 2003-12-24 Alstom Druckgasschalter
CN102306590B (zh) * 2011-06-01 2013-08-28 厦门华电开关有限公司 断路器灭弧室

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH568649A5 (fr) * 1974-07-29 1975-10-31 Sprecher & Schuh Ag
FR2563372B1 (fr) * 1984-04-24 1988-02-26 Alsthom Atlantique Disjoncteur haute tension a soufflage d'arc
DE3438635A1 (de) * 1984-09-26 1986-04-03 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Druckgasschalter
FR2596575B1 (fr) * 1986-03-26 1988-05-20 Alsthom Disjoncteur a gaz dielectrique sous pression

Also Published As

Publication number Publication date
DE3810091A1 (de) 1989-10-05
EP0334008A3 (fr) 1991-01-23
DE58901215D1 (de) 1992-05-27
EP0334008A2 (fr) 1989-09-27

Similar Documents

Publication Publication Date Title
EP0067460B2 (fr) Disjoncteur de puissance pour haute tension
DE3438635A1 (de) Druckgasschalter
DE3247121C2 (fr)
EP0766278A2 (fr) Disjoncteur
DE2812945C2 (de) Druckgasschalter
EP0296363B1 (fr) Interrupteur à écoulement de gaz d'extinction autoengendré
EP0334008B1 (fr) Interrupteur mono-pression à SF6
DE1130028B (de) Kompressionsschalter
EP0744759B1 (fr) Disjoncteur pour haute tension avec chambre de réchauffement fixe
DE4103119A1 (de) Druckgasschalter
DE643821C (de) Elektrischer Schalter
DE4015179C2 (de) Druckgasschalter
DE3930548C2 (de) Druckgasschalter
EP0374384B1 (fr) Interrupteur monopression à SF6
CH640977A5 (de) Stromkreisunterbrecher.
DE4025553C2 (de) Druckgasschalter
DE19939940A1 (de) Druckgasschalter
DE2759265C3 (de) Druckgasschalter
DE3843405C1 (fr)
DE19524637C2 (de) Druckgasschalter
DE2629054C3 (de) Autopneumatischer Druckgasschalter
DE3843406A1 (de) Sf(pfeil abwaerts)6(pfeil abwaerts)-eindruckschalter
CH650100A5 (en) Gas-blast circuit breaker
AT398140B (de) Druckgasschalter
DE2246451A1 (de) Druckgasschalter

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR IT LI SE

17P Request for examination filed

Effective date: 19910129

17Q First examination report despatched

Effective date: 19910722

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR IT LI SE

REF Corresponds to:

Ref document number: 58901215

Country of ref document: DE

Date of ref document: 19920527

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 89102110.7

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: LICENTIA PATENT- VERWALTUNGS-GMBH TRANSFER- AEG EN

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000215

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20000218

Year of fee payment: 12

Ref country code: CH

Payment date: 20000218

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20000426

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 89102110.7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050208