EP0380907B2 - Druckgasschalter für Hoch- und Mittelspannung - Google Patents

Druckgasschalter für Hoch- und Mittelspannung Download PDF

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Publication number
EP0380907B2
EP0380907B2 EP90100019A EP90100019A EP0380907B2 EP 0380907 B2 EP0380907 B2 EP 0380907B2 EP 90100019 A EP90100019 A EP 90100019A EP 90100019 A EP90100019 A EP 90100019A EP 0380907 B2 EP0380907 B2 EP 0380907B2
Authority
EP
European Patent Office
Prior art keywords
piston
circuit breaker
tube
arc
cylinder
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
EP90100019A
Other languages
English (en)
French (fr)
Other versions
EP0380907B1 (de
EP0380907A1 (de
Inventor
Edmund Thuries
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Holdings SA
Original Assignee
GEC Alsthom SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9377438&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0380907(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by GEC Alsthom SA filed Critical GEC Alsthom SA
Priority to AT90100019T priority Critical patent/ATE102741T1/de
Publication of EP0380907A1 publication Critical patent/EP0380907A1/de
Publication of EP0380907B1 publication Critical patent/EP0380907B1/de
Application granted granted Critical
Publication of EP0380907B2 publication Critical patent/EP0380907B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H33/901—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
    • 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 present invention relates to a high voltage circuit breaker of the dielectric gas type, such as sulfur hexafluoride, under a pressure of a few bars.
  • the invention relates more particularly to a circuit breaker of the aforementioned type in which the increase in pressure due, at the time of tripping, to the appearance of an electric arc between the arcing contacts, is used to exert a motor force on the moving part; this arrangement, known for example from French patent 85 00610 filed on January 16, 1985 and published on July 18, 1986 under the number 2 576 142, makes it possible to cut the arc without requiring the use of a device too much power.
  • Document DE-A-3 132 825 describes a circuit breaker in accordance with the preamble of claim 1.
  • the second end of the metal tube coaxial with the circuit breaker is connected to said operating member, said second piston is an annular piston external to said tube and integral with said tube, said means of communication with low pressure drops being constituted by said tube pierced with large openings at its periphery, the interior of said tube being closed substantially to the right of said piston by a part.
  • the circuit breaker shown in partial view in FIG. 1 comprises a casing 1, of insulating material such as ceramic, of generally cylindrical shape with axis XX and delimiting an interior volume Vo filled with dielectric gas such as sulfur hexafluoride, under a pressure of a few bars.
  • insulating material such as ceramic
  • dielectric gas such as sulfur hexafluoride
  • the circuit breaker comprises a fixed main contact 2 connected to a first socket not shown, and a fixed arcing contact 3, having one end 3A made of an alloy resistant to the effects of the arc, such as a tungsten alloy.
  • the moving element of the circuit breaker comprises a tube 4, one end of which 4A, made of an arc-resistant alloy, constitutes the moving arcing contact.
  • the tube 4 is connected, at its other end 4B, to an operating device, not shown.
  • the tube 4 is integral with a tube 5, one end of which 5A constitutes the movable main contact of the circuit breaker.
  • an insulating nozzle 6 At the end 5A is fixed an insulating nozzle 6, the neck of which is obstructed by the arcing contact 4 when the circuit breaker is in the closed position.
  • Holes 7 are made in the crown connecting the tubes 4 and 5 so that these tubes define a single volume V1, closed on one side by the nozzle 6.
  • the part 8 is connected to a second outlet not shown.
  • the tube 5 which constitutes the blowing cylinder of the circuit breaker, is integral with a piston 14 placed inside the tube 88 and capable of sliding in this tube in leaktight manner thanks to a seal 14D.
  • the piston 14 defines with the tubes 8A and 8B a volume V2.
  • the piston has openings 14A which can be closed by an annular valve 16, the stroke of which is limited by a projection 14B.
  • the tube 4 is pierced with very large openings 15 on its surface putting in communication by large passages the volume V2 with the volume V3 inside the tube 4. It is noted that the volume V3 is closed, on the operating member side by a disc 17 integral of tube 4.
  • the circuit breaker works as follows:
  • the circuit breaker operating device drives the moving assembly (tubes 4 and 5, nozzle 6, piston 14) to the right of the figure.
  • the main contacts separate and the current then flows through the arcing contacts 3 and 4.
  • an arc 20 (fig.2) is formed; it strongly heats the surrounding gas and the pressure increases strongly.
  • the volume V1 is closed by application of the valve 13.
  • the hot gas escapes through the volume V3 surrounding the axis and passes through the openings 15 in the volume V2.
  • the pressure prevailing in the volume V1 produces at the first zero crossing of the current an expansion of gas through the nozzle 6, which produces the extinction of the arc.
  • the pressure in the volume V1 is sufficient to press the valve 13 against its seat; the expansion of volume V1 at zero current crossing is enough to cut the arc.
  • the operating member moves the moving assembly to the right of the figure.
  • a slight overpressure in the volume V2 causes the valve 16 to close on the one hand, and on the other hand, combined with a slight depression in the volume V1, causes the slide 11 to move to the left.
  • the valve 13 opens, which allows filling of the volume V1 without requiring any particular effect due to a significant depression in the volume V1.

Landscapes

  • Circuit Breakers (AREA)
  • Pens And Brushes (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Organic Insulating Materials (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (5)

  1. Hoch- und Mittelspannungstrennschalter mit Blasgas, der aufweist:
    - eine mit einem unter Druck stehenden dielektrischen Gas gefüllte zylindrische, isolierende Hülle,
    - einen ortsfesten Hauptkontakt (2),
    - einen ortsfesten Lichtbogenkontakt (3),
    - bewegliche Schaltorgane, die mit einem Betätigungsorgan verbunden sind und aufweisen:
    - einen beweglichen Hauptkontakt (5A),
    - einen Blaszylinder (5), der einer Blasdüse (6) zugeordnet ist und mit einem ersten Kolben (13) zusammenwirkt,
    - einen zweiten fest mit den beweglichen Schaltorganen verbundenen Kolben (14), der in einem zweiten, ortsfesten, durch einen rohrförmigen Abschnitt (8A) fest mit dem ersten Kolben (13) verbundenen Zylinder (8B) gleitet und mit Mitteln (15) zur Herstellung einer Verbindung mit der Lichtbogenzone bei geringen Druckverlusten zusammenwirkt,
    - einen Lichtbogenkontakt, der aus einem ersten Ende (4A) eines Metallrohrs (4) besteht, das zum Trennschalter koaxial ist, während das zweite Ende des Rohrs mit dem Betätigungsorgan verbunden ist,
    dadurch gekennzeichnet, daß
    - der zweite Zylinder (8B) einen größeren Durchmesser als der rohrförmige Abschnitt (8A) besitzt,
    - der Querschnitt des zweiten Kolbens (14, 17) wesentlich größer als der des ersten Kolbens (13) ist,
    - der zweite Kolben von kalibrierten Öffnungen (14C) zur Begrenzung des auf die Fläche des Kolbens einwirkenden Drucks durchquert wird, die die durch den Lichtbogen aufgeheizten Gase empfängt.
  2. Trennschalter nach Anspruch 1, dadurch gekennzeichnet, daß der zweite Kolben (14) ein das Rohr umgebender und fest mit ihm verbundener ringförmiger Kolben ist und die Mittel zur Herstellung einer Verbindung mit geringen Druckverlusten aus dem Rohr (4) bestehen, das an seinem Umfang große Öffnungen (15) besitzt, wobei das Innere des Rohres im wesentlichen in Höhe des Kolbens durch ein Bauteil (17) verschlossen ist.
  3. Trennschalter nach Anspruch 2, dadurch gekennzeichnet, daß der erste Kolben eine ringförmige Ventilklappe (13) aufweist, die einen das Rohr (4) umgebenden und koaxial zu diesem verlaufenden zylindrischen Schieber (11) verschließt, wobei der Schieber zwei Stellungen einnehmen kann, in denen er Durchlässe (10) im zweiten Zylinder (8B) schließen oder öffnen kann, die in das Volumen der angrenzenden Hülle (1) einmünden.
  4. Trennschalter nach Anspruch 3, dadurch gekennzeichnet, daß die Durchlässe (10) radiale Schächte sind.
  5. Trennschalter nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der zweite Kolben eine Ventilklappe (16) trägt, die sich schließt, wenn der Druck auf der der der Lichtbogenzone näheren Seite des zweiten Kolbens (14) größer als der Druck auf der anderen Seite ist.
EP90100019A 1989-01-02 1990-01-02 Druckgasschalter für Hoch- und Mittelspannung Expired - Lifetime EP0380907B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90100019T ATE102741T1 (de) 1989-01-02 1990-01-02 Druckgasschalter fuer hoch- und mittelspannung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8900009A FR2641409B1 (fr) 1989-01-02 1989-01-02 Disjoncteur a haute et moyenne tension a gaz de soufflage
FR8900009 1989-01-02

Publications (3)

Publication Number Publication Date
EP0380907A1 EP0380907A1 (de) 1990-08-08
EP0380907B1 EP0380907B1 (de) 1994-03-09
EP0380907B2 true EP0380907B2 (de) 1996-12-11

Family

ID=9377438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100019A Expired - Lifetime EP0380907B2 (de) 1989-01-02 1990-01-02 Druckgasschalter für Hoch- und Mittelspannung

Country Status (9)

Country Link
US (1) US4983789A (de)
EP (1) EP0380907B2 (de)
JP (1) JP2655733B2 (de)
CN (1) CN1016548B (de)
AT (1) ATE102741T1 (de)
BR (1) BR9000007A (de)
CA (1) CA2006934C (de)
DE (1) DE69007136T3 (de)
FR (1) FR2641409B1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE115765T1 (de) * 1991-04-12 1994-12-15 Gec Alsthom T & D Ag Druckgasschalter.
FR2679696B1 (fr) * 1991-07-24 1993-09-24 Alsthom Gec Disjoncteur a haute et moyenne tension a gaz de soufflage.
ATE140100T1 (de) * 1992-02-06 1996-07-15 Gec Alsthom T & D Ag Druckgasschalter
ATE388478T1 (de) † 2002-09-24 2008-03-15 Abb Schweiz Ag Leistungsschalter
DE102007031948A1 (de) * 2007-07-06 2009-01-08 Siemens Ag Schaltgeräteanordnung mit einem Abströmkanal
JP5482613B2 (ja) * 2010-10-05 2014-05-07 株式会社日立製作所 ガス遮断器
WO2013175565A1 (ja) * 2012-05-22 2013-11-28 三菱電機株式会社 ガス遮断器
FR3030869B1 (fr) * 2014-12-19 2017-02-10 Alstom Technology Ltd Disjoncteur comprenant un capot d'echappement de gaz a ouverture obturable
CN106328430B (zh) * 2016-08-25 2018-08-07 中国西电电气股份有限公司 一种串联压气室的灭弧室
JP6818604B2 (ja) * 2017-03-24 2021-01-20 株式会社日立製作所 ガス遮断器
WO2019024978A1 (en) * 2017-07-31 2019-02-07 General Electric Technology Gmbh ELECTRIC SWITCH COMPRISING A ARC BLOWING UNIT

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957063A (en) * 1958-03-07 1960-10-18 Westinghouse Electric Corp Pumped-gas circuit interrupter
JPS5419054B2 (de) * 1973-11-07 1979-07-12
CH600538A5 (de) * 1976-04-22 1978-06-15 Bbc Brown Boveri & Cie
JPS5372176A (en) * 1976-12-10 1978-06-27 Hitachi Ltd Buffer type gas breaker
CH655611B (de) * 1981-06-18 1986-04-30
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
FR2576144B1 (fr) * 1985-01-16 1987-02-06 Alsthom Atlantique Disjoncteur a haute tension, a gaz comprime, a faible energie de manoeuvre
FR2596575B1 (fr) * 1986-03-26 1988-05-20 Alsthom Disjoncteur a gaz dielectrique sous pression
FR2596574B1 (fr) * 1986-04-01 1988-05-20 Alsthom Disjoncteur a haute tension a gaz dielectrique sous pression
JP2528100B2 (ja) * 1986-07-08 1996-08-28 株式会社日立製作所 パツフア形ガス遮断器

Also Published As

Publication number Publication date
FR2641409A1 (fr) 1990-07-06
EP0380907B1 (de) 1994-03-09
US4983789A (en) 1991-01-08
DE69007136T3 (de) 1997-03-06
FR2641409B1 (fr) 1996-04-26
CA2006934A1 (fr) 1990-07-02
CN1016548B (zh) 1992-05-06
EP0380907A1 (de) 1990-08-08
JPH02230625A (ja) 1990-09-13
DE69007136T2 (de) 1994-06-16
JP2655733B2 (ja) 1997-09-24
DE69007136D1 (de) 1994-04-14
CN1044008A (zh) 1990-07-18
CA2006934C (fr) 1994-04-26
BR9000007A (pt) 1990-10-09
ATE102741T1 (de) 1994-03-15

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