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EP0073175B1 - Disjoncteur à gaz comprimé - Google Patents

Disjoncteur à gaz comprimé Download PDF

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Publication number
EP0073175B1
EP0073175B1 EP82730107A EP82730107A EP0073175B1 EP 0073175 B1 EP0073175 B1 EP 0073175B1 EP 82730107 A EP82730107 A EP 82730107A EP 82730107 A EP82730107 A EP 82730107A EP 0073175 B1 EP0073175 B1 EP 0073175B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
pressure
piston
suction
tube
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
Application number
EP82730107A
Other languages
German (de)
English (en)
Other versions
EP0073175A1 (fr
Inventor
Karl Dr. rer. nat. Zückler
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to AT82730107T priority Critical patent/ATE12056T1/de
Publication of EP0073175A1 publication Critical patent/EP0073175A1/fr
Application granted granted Critical
Publication of EP0073175B1 publication Critical patent/EP0073175B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—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
    • H01H2033/907—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 tandem pistons, e.g. several compression volumes being modified in conjunction or sequential

Definitions

  • the invention relates to an electric pressure gas switch with two quenching nozzles opposite each other at a distance from the separating distance, one of which is attached to a fixed contact tube and the other to a fixed guide tube, with a longitudinally movable switching tube for bridging the separating distance and with a pressure piston pressure cylinder Arrangement for generating an extinguishing agent flow acting on the arc, the switching tube and the movable part of the pressure piston-pressure cylinder arrangement being coupled to a common drive and rigidly connected to one another.
  • Such switches are known from DE-A-2 248 116 and DE-A-2 719135.
  • the pressure gas switch according to DE-A-1 966 973 also essentially has the features mentioned.
  • the pressure cylinder of the pressure piston-pressure cylinder arrangement is arranged to be longitudinally movable and is rigidly coupled to the switching tube and the drive. During the switch-off movement, the pressure cylinder is therefore moved together with the switching tube in the direction of the pressure piston of the pressure piston-pressure cylinder arrangement. In the course of the switch-off movement, the drive also sets the pressure piston in motion, its movement being opposite to that of the pressure cylinder. This results in a compression or an improvement in the pre-compression particularly quickly during the switch-off process.
  • the invention has for its object to further improve this known electrical pressure gas switch with regard to the flow of extinguishing agent, this improvement should be achievable with a simple construction and with a low manufacturing cost.
  • the pressure piston forming the movable part of the pressure piston-pressure cylinder arrangement is located in a fixed pressure cylinder in an electrical pressure gas switch of the type specified at the beginning; the pressure cylinder is connected in the region of its end comprising the contact tube to the interior thereof through through openings in the contact tube, and the pressure piston is rigidly connected to a suction piston in a fixed suction cylinder comprising the guide tube, the suction cylinder in the region of its end facing the pressure cylinder via holes in the Guide tube is connected to the interior.
  • the main advantage of the pressure gas switch according to the invention is that, despite a short pre-compression path, a high pressure difference is generated at the extinguishing nozzles. This is due to the fact that an overpressure arises in the area outside the extinguishing nozzles during the pre-compression and at the same time a negative pressure is built up inside the extinguishing nozzles, which is caused by the movement of the pressure piston and the suction piston during the pre-compression phase.
  • the relatively large pressure difference obtained in this way leads to a strong flow of extinguishing agent, which leads to an advantageously short extinguishing time for the arc.
  • Another advantage is that the relatively large pressure difference builds up relatively quickly, so that the pressure gas switch according to the invention can be extinguished relatively early.
  • flow obstacles are arranged in the contact tube and in the guide tube, each of which lies on the side of the through openings and holes facing away from the extinguishing nozzles.
  • Such flow obstacles are particularly advantageous when the flow cross sections in the interior of the contact tube and the guide tube are relatively large. These flow obstacles desirably complicate the suction flow from the low pressure space towards the isolating section of the switch.
  • the pressure cylinder of the pressure piston-pressure cylinder arrangement and also the suction cylinder can each consist of a separate component.
  • the pressure cylinder and the suction cylinder consist of a single cylinder part with an annular partition.
  • the ring-shaped partition divides the only cylinder part into the pressure cylinder and the suction cylinder.
  • the interior of the pressure cylinder is connected to the interior of the suction cylinder via an external pressure line.
  • This pressure line ensures that the pressure inside the pressure cylinder corresponds to that inside the suction cylinder.
  • connection of the interior of the pressure cylinder and the suction cylinder via the pressure line is particularly advantageous if the suction cylinder has a counter-piston at its end facing away from the pressure cylinder, which counter-clockwise movement of the drive to the suction piston during the switching-off movement of the drive.
  • the suction cylinder has a counter-piston at its end facing away from the pressure cylinder, which counter-clockwise movement of the drive to the suction piston during the switching-off movement of the drive.
  • an exemplary embodiment of the electric pressure gas switch according to the invention is shown schematically in section in the figure, the right side of the figure representing the exemplary embodiment in the switched-on state and the left side of the figure representing the exemplary embodiment in the switched-off state.
  • the electrical pressure gas switch shown contains a fixed contact tube 1 with an extinguishing nozzle 2, which is opposite an extinguishing nozzle 3 of a likewise fixed guide tube 4.
  • the separating section T formed by the extinguishing nozzles 2 and 3 can be bridged by a switching tube 5, which is part of a drive cylinder 6.
  • This drive cylinder 6 is connected to a drive in a manner not shown.
  • a suction piston 7 is fastened to the drive cylinder 6 and can be moved in a suction cylinder 8.
  • a pressure piston 10, which is guided in a pressure cylinder 11, is connected to the suction piston 7 via connecting rods, of which only one connecting rod 9 is shown in the figure.
  • the pressure piston 10, the suction piston 7, the switching tube 5 and the drive cylinder 6 are thus rigidly mechanically coupled to one another.
  • the pressure cylinder 11 and the suction cylinder 8 consist of a one-piece cylinder part which consists of insulating material and is equipped at its end comprising the contact tube 1 with ribs 12 for extending the creepage distance.
  • the one-piece insulating part is divided by an annular partition 13 into the suction cylinder 8 and the pressure cylinder 11.
  • the pressure piston 10 is provided on the inside with a bevel 14 so that through openings 16 of the contact tube 1 remain free even when the switch is switched on.
  • the switching tube 5 is also provided with openings 18.
  • the entire electrical switch is housed in a porcelain insulator 21 in a known manner.
  • the suction cylinder 8 cannot be fixed by one the bottom, but be closed off by a counter-piston 23 on its side facing away from the pressure cylinder 11.
  • This counter-piston 23 can be connected to the drive of the switch in a manner as described in detail in DE-A-1 966 973.
  • the counter-piston 23 is consequently moved in the direction of arrow 24 during the switching-off movement and therefore causes an additional compression of the insulating gas together with the suction piston 7 in the interior of the suction cylinder 8. If there is a pressure line 25 between the interior of the suction cylinder 8 and the pressure cylinder 11, then this pressure is transmitted into the interior of the pressure cylinder 11 and causes a further pressure increase in the cylinder 11. This has an advantageous effect on the flow of extinguishing agent and on the dielectric strength of the switching path Disconnect the switching tube 5 from the extinguishing nozzle 2 of the contact tube 1.

Landscapes

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

Claims (6)

1. Disjoncteur électrique à gaz sous pression comportant deux buses d'extinction (2, 3) disposées réciproquement en vis-à-vis à distance de la distance de coupure et dont l'une (2) est montée sur un tube de contact fixe (1) et dont l'autre est montée sur un tube de guidage fixe (4), et comportant un tube de commutation (5) déplaçable longitudinalement et servant à shunter la section de coupure, et un dispositif à piston de pression et à cylindre de pression (10, 11) servant à produire un écoulement du fluide d'extinction agissant sur l'arc électrique, le tube de commutation (5) et la partie mobile du dispositif à piston de pression et à cylindre de pression étant accouplés à un dispositif d'entraînement commun et étant reliés rigidement entre eux, caractérisé par le fait que le piston de pression (10), qui constitue la partie mobile du dispositif à piston de pression et à cylindre de pression est situé dans un cylindre de compression (11) fixe, que dans la zone de son extrémité entourant le tube de contact (1), le cylindre de pression (11) est relié par l'intermédiaire d'ouvertures de passage (16) situées dans le tube de contact (1) à l'espace intérieur de ce dernier, que le piston de pression (10) est relié rigidement à un piston d'aspiration (7) situé dans un cylindre d'aspiration (8) fixe, entourant le tube de guidage (4), et que dans la zone de son extrémité tournée vers le cylindre de pression (11), le cylindre d'aspiration (8) est relié par l'intermédiaire de trous (17) situés dans le tube de guidage (4), à l'espace intérieur de ce dernier.
2. Disjoncteur à gaz sous pression suivant la revendication 1, caractérisé par le fait que dans le tube de contact (1) et dans le tube de guidage (4) se trouvent disposés des obstacles (19, 20) génant l'écoulement, qui sont situés respectivement sur le côté des ouvertures de passage (16) et des trous (17), situé à l'opposé des buses d'extinction (2,3).
3. Disjoncteur à gaz sous pression suivant la revendication 1 ou 2, caractérisé par le fait que le cylindre de compression (11) et le cylindre d'aspiration (8) sont constitués par une pièce cylindrique d'un seul tenant possédant une paroi de séparation annulaire (13).
4. Disjoncteur à gaz sous pression suivant l'une des revendications précédentes, caractérisé par le fait que l'espace intérieur du cylindre de pression (11) est relié à l'espace intérieur du cylindre d'aspiration (8) par l'intermédiaire d'une autre conduite de pression (25).
5. Disjoncteur à gaz sous pression suivant l'une des revendications précédentes, caractérisé par le fait que le cylindre d'aspiration (8) est fermé, au niveau de son extrémité tournée à l'opposé du cylindre de pression (11), par un fond fixe.
6. Disjoncteur à gaz sous pression suivant l'une des revendications 1 à 4, caractérisé par le fait que le cylindre d'aspiration (8) comporte, sur son extrémité tournée à l'opposé du cylindre de pression (11), un piston antagoniste (23) qui exécute au cours du mouvement de coupure du dispositif d'entraînement, un déplacement antagoniste, commandé par ledit dispositif d'entraînement, en direction du piston d'aspiration (7).
EP82730107A 1981-08-27 1982-08-12 Disjoncteur à gaz comprimé Expired EP0073175B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82730107T ATE12056T1 (de) 1981-08-27 1982-08-12 Elektrischer druckgasschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813134200 DE3134200A1 (de) 1981-08-27 1981-08-27 Elektrischer schalter
DE3134200 1981-08-27

Publications (2)

Publication Number Publication Date
EP0073175A1 EP0073175A1 (fr) 1983-03-02
EP0073175B1 true EP0073175B1 (fr) 1985-03-06

Family

ID=6140404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82730107A Expired EP0073175B1 (fr) 1981-08-27 1982-08-12 Disjoncteur à gaz comprimé

Country Status (5)

Country Link
US (1) US4450330A (fr)
EP (1) EP0073175B1 (fr)
JP (1) JPS5842126A (fr)
AT (1) ATE12056T1 (fr)
DE (3) DE3134200A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576142B1 (fr) * 1985-01-16 1987-12-24 Alsthom Atlantique Disjoncteur a haute tension, a gaz comprime, a energie de manoeuvre assistee par l'effet thermique de l'arc
FR2576143B1 (fr) * 1985-01-16 1987-12-24 Alsthom Atlantique Disjoncteur a haute tension, a gaz comprime, a energie de manoeuvre assistee par l'effet thermique de l'arc et a double mouvement
US4665289A (en) * 1985-05-08 1987-05-12 Kabushiki Kaisha Toshiba Puffer type gas insulated circuit breaker
DE3750349T2 (de) * 1986-05-09 1994-12-15 Mitsubishi Heavy Ind Ltd Anordnung zur Herstellung von Dünnschichten.
JPH0680662B2 (ja) * 1987-12-02 1994-10-12 株式会社日立製作所 Ｉｃ素子の修正方法
JPH0680672B2 (ja) * 1987-12-02 1994-10-12 株式会社日立製作所 Ｉｃ素子の加工装置
DE4041702C1 (fr) * 1990-12-24 1992-04-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De
DE4117057A1 (de) * 1991-05-23 1992-11-26 Siemens Ag Mit loeschgas arbeitender mehrstellungs-drehschalter
DE9210086U1 (de) * 1992-07-22 1993-11-25 Siemens AG, 80333 München Hochspannungs-Leistungsschalter
DE69507453T2 (de) * 1995-05-04 1999-09-02 Ansaldo Industria S.P.A. Hochspannungsschalter mit dielektrischem Gas mit Selbst-Beblasung
JP4989794B1 (ja) 2011-08-30 2012-08-01 三菱電機株式会社 ガス遮断器
JP6157824B2 (ja) 2012-09-28 2017-07-05 株式会社東芝 ガス遮断器
JP6289856B2 (ja) * 2013-10-16 2018-03-07 株式会社東芝 ガス遮断器
US12322935B2 (en) * 2022-08-23 2025-06-03 Siemens Energy Global GmbH & Co. KG Compressed gas switch

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2061975A5 (fr) * 1969-10-06 1971-06-25 Merlin Gerin
DE2248116A1 (de) * 1972-09-28 1974-04-04 Siemens Ag Hochspannungs-leistungsschalter mit einem gasfoermigen loesch- und isoliermittel
DE2350832B2 (de) * 1973-10-10 1980-05-08 Calor-Emag Elektrizitaets-Aktiengesellschaft, 4030 Ratingen Hochspannungsschalter
GB1559498A (en) * 1976-05-04 1980-01-23 Ass Elect Ind Gas-blast circuit breakers
DE2911633C2 (de) * 1979-03-24 1985-07-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Autopneumatischer Druckgasschalter
US4278860A (en) * 1979-08-03 1981-07-14 Gould Inc. Arc driven single pressure type circuit breaker

Also Published As

Publication number Publication date
DE3134200A1 (de) 1983-03-10
DE8125211U1 (de) 1985-03-21
DE3262497D1 (en) 1985-04-11
JPS5842126A (ja) 1983-03-11
ATE12056T1 (de) 1985-03-15
US4450330A (en) 1984-05-22
EP0073175A1 (fr) 1983-03-02

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