EP0508160B1 - Interrupteur à gaz comprimé - Google Patents

Interrupteur à gaz comprimé Download PDF

Info

Publication number
EP0508160B1
EP0508160B1 EP92104468A EP92104468A EP0508160B1 EP 0508160 B1 EP0508160 B1 EP 0508160B1 EP 92104468 A EP92104468 A EP 92104468A EP 92104468 A EP92104468 A EP 92104468A EP 0508160 B1 EP0508160 B1 EP 0508160B1
Authority
EP
European Patent Office
Prior art keywords
piston
contact piece
chamber
valve body
switching
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
EP92104468A
Other languages
German (de)
English (en)
Other versions
EP0508160A3 (en
EP0508160A2 (fr
Inventor
Johannes Blatter
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.)
General Electric Switzerland GmbH
Original Assignee
GEC Alsthom T&D AG
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 GEC Alsthom T&D AG filed Critical GEC Alsthom T&D AG
Publication of EP0508160A2 publication Critical patent/EP0508160A2/fr
Publication of EP0508160A3 publication Critical patent/EP0508160A3/de
Application granted granted Critical
Publication of EP0508160B1 publication Critical patent/EP0508160B1/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
    • H01H33/91—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
    • H01H2033/908—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
    • 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 gas pressure switch according to the preamble of claim 1.
  • a gas pressure switch of this type is known from EP-A-0 380 907.
  • the extinguishing gas flowing into a blow-out space supports the drive.
  • slide-like valve means are provided which, when switched on, release openings in the cylinder delimiting the exhaust chamber, which run in the radial direction in relation to the pressure in the pump chamber, due to the relatively large excess pressure in the blow-out chamber, in order to equalize the pressure between the blow-out space and the surrounding space.
  • a control piston is provided in the pump piston separating the pump chamber from the blow-out chamber.
  • a piston that delimits it and is moved with the movable contact piece is provided with a large-area check valve that remains open with respect to the surrounding space when a negative pressure occurs in the blow-out chamber.
  • the disadvantage of this known switch is that to open the slide-like valve means, a certain pressure difference must be built up between the pump chamber and the blow-out chamber, which requires drive energy, and that at the beginning of a switch-off stroke, the slide-like valve means must first be brought back into their closed position, the pump chamber enlarged by the displacement of the control piston becomes. This has the consequence that the pressure built up in the pump chamber is reduced, which affects the breaking capacity of the switch.
  • such slide-like valve means require a complicated structure of the pressure gas switch.
  • valve means are controlled depending on the stroke of the movable contact piece, which prevents an influence on the pump chamber and the build-up of pressure for actuating the valve means.
  • a fixed contact piece 10 which is connected in parallel to a continuous current contact piece 12 which also coaxially surrounds this, is connected in a generally known manner to the one port 14 of the compressed gas switch, which is only indicated schematically in FIG.
  • this fixed contact piece 10 closes a blowing nozzle 16 made of insulating material, which is fixedly mounted on the bottom 18 of a metallic pump cylinder 20 that is open at the bottom, and whose inlet 22 via flow passages 24 in the bottom 18 with a pump chamber enclosed by the pump cylinder 20 26 communicates.
  • the pump cylinder 20 has a metal cylinder jacket 20 'on which the bottom 18 is fixed in the upper end region.
  • the bottom 18 and thus the pump cylinder 20 are firmly anchored to a movable contact piece 28.
  • the movable contact piece 28 has a tulip-like consumable contact piece 30 which cooperates with the fixed contact piece 10 and which, in the switched-on position, delimits the inlet 22 of the blow nozzle 16 on the inside, viewed in the radial direction.
  • the movable contact piece 28 has a blow-out pipe 32, which extends away from the bottom 18 in the direction towards the bottom and which is closed at its lower end by a pin 34 tapered towards the inside of the blow-out pipe 32.
  • the erosion contact piece 30 and the blow-out pipe 32 thus enclose a passage 36, which extends from the upper free end of the movable contact piece 28 and runs in the axial direction and penetrates the bottom 18, the length of which is limited by the pin 34 and which is restricted by radial openings 38 in the blow-out pipe 32 in a blow-out space 40 opens.
  • the pump chamber 26 is delimited by a stationary, ring-like pump piston 42, which surrounds the blow-out pipe 32 above the openings 38.
  • the pump piston 42 has a circumferential groove in which a piston ring 44 made of plastic is arranged, on which the cylinder jacket 20 'is slidably mounted.
  • the pump piston 42 rests on a support tube 46 which surrounds the blow-out tube 32 at a distance and which is supported at the bottom by an intermediate base 48 of an essentially cylindrical second continuous current contact piece 50.
  • a connecting flange 52 protrudes from the second continuous current contact piece 50 to the outside Ensure electrical connection to the other connection of the pressure gas switch, not shown in the figures.
  • the pump chamber 26 and the blow-out chamber 40 are connected to one another via suction passages 54 in the pump piston 42, which are releasably closed by an annular check valve body 56 which interacts with the pump piston 42.
  • the check valve body 56 forms, together with the pump piston 42, a flap or check valve which opens when the overpressure in the blow-out chamber 40 is higher than the pressure in the pump chamber 26.
  • the area of the second continuous current contact piece 50 below the intermediate base 48 forms a cylinder 58 in which a piston 60 is slidably supported.
  • the piston 60 has a circumferential groove in which a piston ring 44 'engages to seal between the cylinder 58 and the piston 60.
  • an axially extending connection opening 62 is provided, the clear width of which is aligned with the clear width of the support tube 46 and thus the subspace 46 'delimited by the support tube 46 and on the top by the pumping piston 42' with the cylinder 58 and piston 60 limited subspace 58 'connects.
  • the blow-out space 40 is thus composed of these two sub-spaces 46 'and 58'.
  • a neck 64 protruding toward the top is integrally formed, into which the blow-out pipe 32 is screwed with its lower end region.
  • a connecting lug 66 protrudes from the piston 60, on which an actuating rod connected to a drive 67 only indicated schematically in FIG. 1 68 is articulated from insulating material.
  • Large-area inlet openings 70 are provided in the piston 60 (see also FIGS. 3 and 4), which can be closed by means of a disk-shaped valve body 72 which engages around the neck 64 with play and cooperates with the piston 60.
  • Control means 74 leave the valve body 72 in its closed position 72 'on the piston 60, on its side facing the blow-out space 40 in order to close the inlet openings 70 (FIGS. 1 and 3) or hold the valve body 72 in the open position 72 ⁇ , as shown in the figures 2 and 4 show.
  • An annular actuating member 76 of the control means 74 engages around the neck 64 of the piston 60 and is guided on the latter in an axially displaceable manner.
  • a locking device 78 defines a lower first locking position 76 '( Figures 1 and 3) and an upper second locking position 76 ⁇ ( Figures 2 and 4) for the actuating member 76.
  • the actuating member 76 in the axial direction by the distance between the first and the second locking position 76 ', 76 ⁇ spaced, circumferential locking grooves 80, 80', which cooperate with in the neck 64 of the piston 60 in the radial direction and in the direction biased towards the outside locking balls 82.
  • Lugs 84 protrude from the actuator 76 in the radial direction toward the outside, only one of which is shown in FIGS. 1 to 4.
  • On each nose 84 is an axially extending, graduated in diameter shaft 86 is attached, which engages with its adjacent to the nose 84, smaller diameter shaft portion 86 'the valve body 72 and with its larger diameter shaft portion 86 ⁇ the piston 60 .
  • the gradation in the shaft 86 forms a drag connection between the valve body 72 and the actuating member 76. If the actuating member 76 is in its first detent position 76 '(FIGS. 1 and 3), the valve body 72 closes the inlet openings 70.
  • the actuating member 76 is in its second locking position 76 ein (FIGS. 2 and 4), the towing connection through the step in the shaft 86 between the first and second shaft parts 86 ′, 86 ⁇ ensures that the valve body 72 is always in the open position 72 ⁇ is held.
  • the second continuous current contact piece 50 is fastened to an annular holding flange 90 which surrounds the actuating rod 68 at a distance and is supported on a switch housing (not shown) via support insulators 92.
  • This switch housing encloses an ambient space 94 in which all the components described so far are arranged and in which an extinguishing gas under excess pressure, e.g. SF6 is present.
  • a first stop surface 96 is formed on the holding flange 90 on its side facing the piston 60 and cooperates with the lower end of the shaft 86 acting as the first counter stop.
  • a second stop surface 98 is provided on the side of the intermediate base 48 which also faces the piston 60 and which cooperates with the lugs 84 which act as a second counter-stop.
  • a spring ring 100 fastened to the neck 64 and the piston 60 ensure that the actuating member 76 which is movable with the piston 60 only between its first and second locking position 76 ', 76 ⁇ can be moved back and forth.
  • a crown-like sliding contact piece 102 is attached approximately at the level of the pump piston 42, the self-resilient contact fingers 102 'of which, under the additional action of a spring 104 encompassing them, rest against the cylinder jacket 20'.
  • a slide ring 106 is provided for guiding the pump cylinder 20 in the upper end region of the second continuous current contact piece 50 encompassing it.
  • the permanent current contact piece 12 has, at its lower end region facing the pump cylinder 20, covered by a hood 108, resiliently designed and interacting with the pump cylinder 20, continuous current contact fingers 110.
  • FIGS. 5 and 6 corresponds to the embodiment shown in FIGS. 1 to 4 and described in detail above.
  • FIGS. 5 and 6 the same reference numerals are used for the same parts as in FIGS. 1 to 4.
  • FIGS. 5 and 6 show the area of the piston 60 in the on or off position of the switch.
  • the actuating member 76 On the neck 64 protruding from the piston 60 in the direction toward the top, the actuating member 76 is mounted so as to be displaceable in the axial direction.
  • the locking device 78 defines the first locking position 76 '( Figure 5) and second locking position 76 ⁇ ( Figure 6) for the actuator 76.
  • the shaft 86 attached to the nose 84 of the actuator 76 penetrates the disc-shaped valve body 72 and the piston 60 and holds the valve body 72 between the step between the shaft parts 86 'and 86 ⁇ and the lugs 84 clamped firmly with respect to the actuator 76. Is the actuator 76 in its first latching position 76 ', the inlet openings 70 of the piston 60 are closed by the valve body 72' in the closed position 72 '.
  • the valve body 72 cannot act as a flutter valve.
  • the embodiments of the compressed gas switch according to the invention shown in the figures function as follows: In the switch-on position shown in FIGS. 1, 3 and 5, the actuating member 76 is shifted into its first latching position 76 ', so that the valve body 72 is in its closed position closing the inlet openings 70 72 'is located. The majority of the current flows from the connection 14 through the continuous current contact piece 12 the continuous current contact fingers 110 to the pump cylinder 20. From this via the sliding contact piece 102 to the second continuous current contact piece 50 and through the connecting flange 52 to the other connection of the compressed gas switch. The remaining smaller part of the current flows through the fixed contact piece 10 and from this to the erosion contact piece 30 and over the bottom 18 to the cylinder jacket 20 '. From here, this current part flows along the path described above to the other connection of the pressure gas switch.
  • the continuous current contact fingers 110 first separate from the cylinder jacket 20 ', so that the entire current commutates into the fixed contact piece 10 and the erosion contact piece 30.
  • an arc is formed which is blown with the compressed gas compressed in the pump chamber 26 by the relative movement between the pump cylinder 20 and pump piston 42 until it is extinguished.
  • Part of the compressed gas flows through the blowing nozzle 16 into the surrounding space 94 and the other part through the passage 36 in the movable contact piece 28 into the blow-out space 40.
  • the negative pressure in the pump space 26 is compensated for by sucking in compressed gas through the inlet 22 and by means of the suction passages 54 released by the check valve body 56 under these pressure conditions.
  • the lugs 84 now run onto the second stop surface 98, which has the consequence that the actuating member 76 is shifted back from its second latching position 76 ⁇ into the first latching position 76 '.
  • the valve body 72 is transferred from the open position 72 ⁇ , which it has assumed during switching on, into the closed position 72 '. Before switching off, the valve body 72 is therefore always in the closed position 72 '.
  • the pressure gas switch according to the invention supports the drive 67 when switching off medium and large currents and requires no more work from it when switching off small currents and when switching on than with a pressure gas switch without a blowout space 40, without impairing the extinguishing behavior.
  • the compressed gas switch according to the invention thus manages with a drive 67 of low energy.
  • valve body 72 it is also conceivable to arrange the valve body 72 firmly on the actuating member 76, as shown in FIGS. 5 and 6, and to dispense with through holes 112. In this case, a vacuum is generated in the blow-out chamber 40 when the current is switched off or when small currents are switched built up, which can quickly extinguish the arc, but requires additional work from the drive.
  • the latching device 78 can of course be designed in different ways. It is thus conceivable to hold the actuating member 76 in the respective latched position by magnetic means. It is also conceivable to move the actuating member from one to the other latching position only in the switched-on or switched-off position of the compressed gas switch.
  • the latching device for the actuating member can be provided on the blow-out tube of the movable contact piece.

Landscapes

  • Circuit Breakers (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Fluid-Driven Valves (AREA)

Claims (9)

  1. Interrupteur à gaz comprimé, comprenant un plot de contact fixe et un plot de contact mobile (10, 28) disposés dans un espace environnant (94) contenant du gaz de soufflage, le plot de contact mobile (28) étant muni d'un passage axial (36) partant de son extrémité libre, et entouré d'une buse soufflante (16) traversée dans la position de mise en circuit par le plot de contact fixe (10), dont l'entrée (22) communique avec un espace de pompage (26) qui, lors d'une course de coupure, peut être mis sous pression et est délimité par un cylindre de pompage (20) et un piston de pompage (42), le passage axial (36) débouchant à l'extrémité opposée à l'extrémité libre du plot de contact mobile (28) dans un espace de soufflage (40) qui est délimité par un cylindre (58) et par un piston (60) pouvant être entraîné avec le plot de contact mobile (28) et qui, lors de la mise en circuit, peut être mis en communication avec l'espace environnant (94) par l'intermédiaire de moyens de soupape commandés (72), caracté risé en ce qu'il comprend des moyens de commande (74) pour ouvrir les moyens de soupape (72) vers la fin de la course de coupure et pour les maintenir ouverts jusqu'à ce que la position de mise en circuit soit sensiblement atteinte lors de la mise en circuit.
  2. Interrupteur à gaz comprimé selon la revendication 1, caractérisé en ce que les moyens de commande comprennent un organe de manoeuvre (76) déplaçable dans la direction de mouvement du piston (60) et pouvant agir sur le corps de soupape (72) du moyen de soupape, ainsi qu'un dispositif à crans (78) avec deux positions de crantage (76′, 76˝) pour l'organe de manoeuvre (76), l'organe de manoeuvre (76) pouvant être amené, vers ou à la fin de la course de coupure, par entrée en contact avec une première butée (96), d'une première position de crantage (76′) correspondant à la position de fermeture (72′) du corps de soupape (72), à une seconde position de crantage (76˝) correspondant à la position d'ouverture (72˝) du corps de soupape (72), et déplacé, peu avant ou lors de l'atteinte de la position de mise en circuit, par entrée en contact avec une seconde butée (98), de la seconde position de crantage (76˝) à la première position de crantage (76′).
  3. Interrupteur à gaz comprimé selon la revendication 2, caractérisé en ce que les première et seconde butées (99, 98) sont fixes.
  4. Interrupteur à gaz comprimé selon l'une des revendications 2 ou 3, caractérisé en ce que le corps de soupape (72) est couplé avec l'organe de manoeuvre (76) par l'intermédiaire d'un système d'entraînement (86, 86′, 86˝) de telle façon que le corps de soupape (72) forme dans la première position de crantage (76′) une soupape battante avec un passage libre menant de l'espace environnant (94) à l'espace de soufflage (40).
  5. Interrupteur à gaz comprimé selon l'une des revendications 1 à 4, caractérisé en ce que le corps de soupape (72) des moyens de soupape, conformé de préférence en disque annulaire, coopère avec le piston (60) pour fermer de manière libérable des ouvertures d'entrée (70) prévues dans ce dernier.
  6. Interrupteur à gaz comprimé selon l'une des revendications 1 à 4, caractérisé en ce que l'espace de soufflage (40) communique avec l'espace environnant (94) par l'intermédiaire d'un clapet antiretour (114) avec passage libre menant de l'espace environnant (94) à l'espace de soufflage (40).
  7. Interrupteur à gaz comprimé selon l'une des revendications 2 à 5, caractérisé en ce que l'organe de manoeuvre (76) est disposé à l'intérieur de l'espace de soufflage (40), présente une forme annulaire et entoure le plot de contact mobile (28) ou un col (64) conformé sur le piston (60), et que le dispositif à crans (78) comporte dans le plot de contact mobile (28) et respectivement dans le col (64) du piston (60) un organe d'arrêt (82) commandé par ressort, de préférence une bille, qui coopère avec deux encoches d'arrêt (80, 80′) sur l'organe de manoeuvre (76).
  8. Interrupteur à gaz comprimé selon la revendication 7, caractérisé en ce que l'organe de manoeuvre (76) comprend un élément d'arrêt conjugué (86) qui traverse le piston (60) et coopère avec la première butée (96) prévue à l'extérieur de l'espace de soufflage (40), et que la seconde butée (98) est prévue dans l'espace de soufflage (40).
  9. Interrupteur à gaz comprimé selon la revendication 2, caractérisé en ce que le dispositif à crans comporte des moyens magnétiques pour maintenir l'organe de manoeuvre dans la première et/ou dans la seconde position de crantage.
EP92104468A 1991-04-12 1992-03-16 Interrupteur à gaz comprimé Expired - Lifetime EP0508160B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1103/91 1991-04-12
CH110391 1991-04-12

Publications (3)

Publication Number Publication Date
EP0508160A2 EP0508160A2 (fr) 1992-10-14
EP0508160A3 EP0508160A3 (en) 1993-02-24
EP0508160B1 true EP0508160B1 (fr) 1994-12-14

Family

ID=4202544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92104468A Expired - Lifetime EP0508160B1 (fr) 1991-04-12 1992-03-16 Interrupteur à gaz comprimé

Country Status (7)

Country Link
US (1) US5248862A (fr)
EP (1) EP0508160B1 (fr)
JP (1) JP3378266B2 (fr)
AT (1) ATE115765T1 (fr)
CA (1) CA2064268C (fr)
DE (1) DE59200933D1 (fr)
ES (1) ES2065093T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59404639D1 (de) * 1994-06-20 1998-01-02 Gec Alsthom T & D Ag Druckgasschalter
FR2753834B1 (fr) * 1996-09-23 1998-12-04 Disjoncteur a haute tension avec amortisseur
FR2766609B1 (fr) * 1997-07-24 1999-09-24 Gec Alsthom T & D Sa Interrupteur a gaz a volume d'expansion thermique compressible
FR2957451A1 (fr) * 2010-03-09 2011-09-16 Areva T & D Sas Interrupteur electrique haute tension avec retour sur fermeture et dispositif d'insertion d'une resistance

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276456A (en) * 1978-10-23 1981-06-30 Westinghouse Electric Corp. Double-flow puffer-type compressed-gas circuit-interrupter
FR2619246B1 (fr) * 1987-08-03 1989-11-17 Alsthom Disjoncteur a haute ou moyenne tension a gaz sous pression a energie de coupure prelevee sur celle de l'arc
JPH01313825A (ja) * 1988-06-10 1989-12-19 Meidensha Corp パッファ形ガス遮断器
FR2641409B1 (fr) * 1989-01-02 1996-04-26 Alsthom Gec Disjoncteur a haute et moyenne tension a gaz de soufflage
JPH02250227A (ja) * 1989-03-23 1990-10-08 Toshiba Corp パッファ式ガス遮断器
FR2661549B1 (fr) * 1990-04-25 1996-07-19 Alsthom Gec Disjoncteur a moyenne ou haute tension a contacts d'arc en bout.
DE4015179C2 (de) * 1990-05-11 1994-03-10 Licentia Gmbh Druckgasschalter

Also Published As

Publication number Publication date
ES2065093T3 (es) 1995-02-01
ATE115765T1 (de) 1994-12-15
CA2064268A1 (fr) 1992-10-13
US5248862A (en) 1993-09-28
JP3378266B2 (ja) 2003-02-17
EP0508160A3 (en) 1993-02-24
DE59200933D1 (de) 1995-01-26
EP0508160A2 (fr) 1992-10-14
CA2064268C (fr) 2003-02-25
JPH05114339A (ja) 1993-05-07

Similar Documents

Publication Publication Date Title
EP0175954B1 (fr) Interrupteur à gaz comprimé
EP0067460B1 (fr) Disjoncteur de puissance pour haute tension
DE2750762C2 (fr)
EP2126947A2 (fr) Disjoncteur à gaz comprimé comprenant une ouverture d'écoulement radiale
DE3247121C2 (fr)
EP0766278A2 (fr) Disjoncteur
DE69303568T2 (de) Hochspannung selbst-Blaslastscharter mit Schnittkammer mit reduzierter Gaskompression
EP0126929A2 (fr) Interrupteur à gaz comprimé
EP0146671A1 (fr) Interrupteur à gaz comprimé
EP0296363B1 (fr) Interrupteur à écoulement de gaz d'extinction autoengendré
DE3872090T2 (de) Druckgasschalter fuer hoch- oder mittelspannung mit von der lichtbogenenergie entnommener ausschaltenergie.
EP0508160B1 (fr) Interrupteur à gaz comprimé
EP0554686B1 (fr) Interrupteur à gaz sous pression
EP0290950B1 (fr) Disjoncteur à gaz comprimé
DE3132825A1 (de) Druckgasschalter
DE4103119A1 (de) Druckgasschalter
DE19625128A1 (de) Vakuumschaltkammer
DE3315622A1 (de) Druckgasschalter
EP0035581B1 (fr) Disjoncteur à gaz comprimé
EP0817228B1 (fr) Sectionneur de puissance
DE1600821C3 (de) Blasventil für einen Druckgasleistungsschalter
DE69106436T2 (de) Mittelspannungsschalter.
EP0334008B1 (fr) Interrupteur mono-pression à SF6
DE19939940A1 (de) Druckgasschalter
DE4025553C2 (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): AT CH DE ES FR GB 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): AT CH DE ES FR GB IT LI SE

17P Request for examination filed

Effective date: 19930430

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GEC ALSTHOM T&D AG

17Q First examination report despatched

Effective date: 19940517

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 115765

Country of ref document: AT

Date of ref document: 19941215

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59200933

Country of ref document: DE

Date of ref document: 19950126

EAL Se: european patent in force in sweden

Ref document number: 92104468.1

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950104

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2065093

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent filed
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
REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: GEC ALSTHOM T&D AG TRANSFER- GEC ALSTHOM AG * GEC ALSTHOM AG TRANSFER- ALSTOM AG

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: DE

Payment date: 20040220

Year of fee payment: 13

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

Ref country code: SE

Payment date: 20040224

Year of fee payment: 13

Ref country code: CH

Payment date: 20040224

Year of fee payment: 13

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

Ref country code: FR

Payment date: 20040225

Year of fee payment: 13

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

Ref country code: GB

Payment date: 20040226

Year of fee payment: 13

Ref country code: AT

Payment date: 20040226

Year of fee payment: 13

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

Ref country code: ES

Payment date: 20040319

Year of fee payment: 13

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: 20050316

Ref country code: GB

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

Effective date: 20050316

Ref country code: AT

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

Effective date: 20050316

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: 20050317

Ref country code: ES

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

Effective date: 20050317

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: 20050331

Ref country code: CH

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

Effective date: 20050331

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: 20051001

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050316

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: 20051130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20051130

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20050317

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD