EP0067460B2 - Disjoncteur de puissance pour haute tension - Google Patents

Disjoncteur de puissance pour haute tension Download PDF

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Publication number
EP0067460B2
EP0067460B2 EP82200527A EP82200527A EP0067460B2 EP 0067460 B2 EP0067460 B2 EP 0067460B2 EP 82200527 A EP82200527 A EP 82200527A EP 82200527 A EP82200527 A EP 82200527A EP 0067460 B2 EP0067460 B2 EP 0067460B2
Authority
EP
European Patent Office
Prior art keywords
annular
space
annular space
compression
piston
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
EP82200527A
Other languages
German (de)
English (en)
Other versions
EP0067460B1 (fr
EP0067460A1 (fr
Inventor
Lutz Dr. Rer. Nat. Phys. Niemeyer
Blaise Dipl.-Ing. Perrenoud
Klaus Prof. Dr.-Ing. Ragaller
Ekkehard Dr. Ing. Phys. Schade
Rolf Schaumann
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4265025&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0067460(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of EP0067460A1 publication Critical patent/EP0067460A1/fr
Publication of EP0067460B1 publication Critical patent/EP0067460B1/fr
Application granted granted Critical
Publication of EP0067460B2 publication Critical patent/EP0067460B2/fr
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
    • 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
    • H01H2033/902—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 with the gases from hot space and compression volume following different paths to arc space or nozzle, i.e. the compressed gases do not pass through hot 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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet

Definitions

  • the invention relates to a high-voltage circuit breaker according to the preamble of patent claim 1.
  • Such a switch emerges from DE-A-2 500 095.
  • a compression space and a heating volume open into an annular area which is delimited by the movable contact piece and a blowing nozzle and is adjacent to the extinguishing section.
  • check valves located between the compression space and the heating volume are closed.
  • hot extinguishing gas can be stored in the heating volume, at least for a short time, which can also penetrate into the ring-shaped area due to the prevailing pressure conditions.
  • a turbulent boundary layer of hot extinguishing gas from the heating volume and cool extinguishing gas from the compression volume should form at an edge protruding into the annular area.
  • This switch has a complex valve system for controlling the pressure conditions in the compression space and heating volume and also requires a comparatively strong drive.
  • Switches are also known from the European patent application EP-A-0 021 951 and the German patent application DE-A-2 404 721, in which the switching arc drawn between the contact pieces during a switching operation switches around a coil through which the current to be switched off flows under the action of the magnetic field an axis rotates. This increases the heating effect of the switching arc in a quenching chamber and, when the current to be switched off is zero, heated gas is available for blowing the switching arc.
  • a piston-cylinder compression device is provided in each of these switches, through which gas is sucked out of the quenching chamber through the quenching path located between the contact pieces. With this switch, at least in the initial phase of the quenching process, only hot quenching gas is used to blow the switching arc, so that a re-ignition of the switching arc after a current zero crossing cannot be ruled out.
  • German patent application DE-A-2 349 263 also describes a switch with a combustion chamber in which an auxiliary arc lying in series with the switching arc is ignited during a switching operation.
  • This auxiliary arc heats up the gas in the combustion chamber, which supports the drive of the switch.
  • This switch has a piston-cylinder compression device for blowing the switching arc. With this switch, comparatively fresh gas is available for blowing the switching arc, but such a switch is relatively complex.
  • switches are known from French patent application FR-A-2 373 141 and German patent application DE-A-2 741 022, in which the quenching gas located in a closed chamber is essentially heated and compressed by an arc rotating under the action of a magnetic field becomes.
  • the gas pressure in the heating chamber rises sharply and, above a predetermined pressure value, a wall delimiting the heating chamber is moved into a further closed chamber.
  • fresh quenching gas located in this chamber is compressed and then used to extinguish the switching arc.
  • this switch at least in the initial phase of the extinguishing process, only hot extinguishing gas is used fed.
  • the strength of the extinguishing gas blowing depends on the strength of the current to be switched off.
  • the invention solves the problem of specifying a switch in which a re-ignition of the switching arc after zero current is avoided with simple means while saving drive energy.
  • the circuit breaker according to the invention is characterized in that, despite its simple construction and relatively weak drive, a comparatively large proportion of comparatively fresh quenching gas is available for blowing the switching arc in all switching cases. As a result, effective blowing of the switching arc and thus a favorable extinguishing capacity are achieved in an economical manner.
  • a further advantageous embodiment of the circuit breaker according to the invention is specified in dependent claim 2.
  • An exemplary embodiment of the invention is shown in simplified form below with reference to the drawing. Here, the only figure shows a plan view of a section through the circuit breaker according to the invention, the high-voltage circuit breaker being indicated in the switch-on position on the left-hand side, while a switch-off phase of the relevant high-voltage circuit-breaker is shown on the right-hand side.
  • FIG. 1 shows a top view of a section through the contact arrangement of a high-voltage circuit breaker according to the invention.
  • a movable contact piece 1 designed as a nozzle tube engages with contact fingers of a fixed contact piece 2 (see left side).
  • An annular electrode 3 is arranged below the fixed contact piece 2 and is electrically conductively connected to one end of a coil 4. The other end of the coil is in electrically conductive connection with the contact piece 2.
  • the coil 4 is attached to an insulating body 5, in which annular spaces 6, 7 and 8 are provided.
  • the annular space 6 is connected to an annular area 12 via an annular mouth 9, the annular space 8 via an annular channel 10 and an annular mouth 11.
  • the annular spaces 6 and 7 are connected to one another via an opening 13 provided in a wall 14.
  • annular spaces 7 and 8 are separated from one another by an annular piston 15.
  • This ring piston 15 is connected via webs 16 to the movable contact piece 1 and is part of a compression device for extinguishing gas, which is provided in all the spaces and channels specified.
  • Check valves 20 are provided on the annular space 8, which prevent a pressure drop in the annular space 8 when the compression device is actuated and enable the inflow of fresh extinguishing gas when switched on.
  • the heated, high-pressure quenching gas is stored in the annular space 6.
  • a portion of the extinguishing gas stored in the annular space 6 passes through the opening 13 into the annular space 7, in which it exerts a force acting on the annular piston 15 in the switching-off direction and thus supporting the switch drive. This prevents the annular piston 15 from working against the pressure build-up of the extinguishing gas caused by heating and thus resulting in a deceleration of the drive.
  • the fresh quenching gas located in the annular space 8 is compressed and flows when the heating effect of the arc 17 diminishes when the current zero crossing approaches, in the direction indicated by arrows via the annular channel 10 to the area 12 and mixes there with the now also from the annular space 6 flowing heated extinguishing gas.
  • the mixing of the fresh and the hot extinguishing gas is further supported in that the annular spaces 6 and 8 are separated from one another by the cylindrical wall 14, and in that the wall 14 has an edge 19 projecting into the region 12. The edge 19 creates a turbulent boundary layer between fresh and hot extinguishing gas and thereby promotes their mixing.
  • the extinguishing gas which is under high pressure but has cooled considerably, is passed into the extinguishing section located between the movable contact piece 1 and the ring electrode 3, where it blows the arc particularly effectively up to well beyond the zero current point and then via the nozzle-shaped opening of the contact piece 1 enters an expansion room.

Landscapes

  • Circuit Breakers (AREA)

Claims (2)

1. Disjoncteur à haute tension comprenant une pièce de contact (1) mobile et au moins une autre pièce de contact (2, électrode 3), pièces de contact (1, 2, électrode 3) qui, lors d'une opération de coupure, délimitent un trajet d'extinction dans lequel jaillit un arc électrique (17), comprenant également un dispositif de compression à piston-cylindre, dans la chambre de compression (chambre annulaire 8) duquel du gaz d'extinction froid est comprimé et dont la partie modifiant le volume de la chambre de compression (chambre annulaire 8) est reliée de façon rigide à la pièce de contact (1) mobile, comprenant encore un volume de chauffage (chambre annulaire 6) dans lequel est stocké du gaz d'extinction comprimé, par suite du chauffage, par l'arc électrique (17), ainsi qu'au moins une tuyère par l'ouverture de laquelle, lors d'une opération de coupure, du gaz d'extinction comprimé circule du trajet d'extinction jusqu'à une chambre d'expansion, dans lequel la chambre de compression (chambre annulaire 8) et le volume de chauffage (chambre annulaire 6) débouchent dans une zone annulaire (12) commune, qui fait partie d'un dispositif de mélange de gaz d'extinction chaud et froid et qui met en communication la chambre de compression (chambre annulaire 8) et le volume de chauffage (chambre annulaire 6) avec le trajet d'extinction, et dans lequel les embouchures (11, 9) de la chambre de compression (chambre annulaire 8) et du volume de chauffage (chambre annulaire 6) dans la zone annulaire (12) sont séparées l'une de l'autre par une paroi cylindrique (14) qui présente une arête (19) pénétrant dans la zone annulaire (12) et grâce à laquelle, lorsque le courant à couper s'approche d'une annulation, une couche limite turbulente se forme entre le gaz d'extinction chaud et le gaz d'extinction froid, caractérisé en ce que la chambre de compression (chambre annulaire 8) est subdivisée, par un piston annulaire (15) du dispositif de compression, en deux chambres annulaires (7, 8) dont les volumes varient en sens contraires, l'une de ces chambres annulaires (8) étant reliée à la zone annulaire (12) et l'autre chambre annulaire (7) étant reliée au volume de chauffage (chambre annulaire 6).
2. Disjoncteur à haute tension selon la revendication 1, caractérisé en ce que le piston annulaire (15) est realisé sous la forme d'un piston différentiel, dont la plus grande face délimite la chambre annulaire (7) qui est en communication avec le volume de chauffage (chambre annulaire 6).
EP82200527A 1981-06-12 1982-05-03 Disjoncteur de puissance pour haute tension Expired - Lifetime EP0067460B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3860/81 1981-06-12
CH386081 1981-06-12

Publications (3)

Publication Number Publication Date
EP0067460A1 EP0067460A1 (fr) 1982-12-22
EP0067460B1 EP0067460B1 (fr) 1985-08-14
EP0067460B2 true EP0067460B2 (fr) 1990-03-21

Family

ID=4265025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200527A Expired - Lifetime EP0067460B2 (fr) 1981-06-12 1982-05-03 Disjoncteur de puissance pour haute tension

Country Status (4)

Country Link
US (1) US4486632A (fr)
EP (1) EP0067460B2 (fr)
DE (1) DE3265381D1 (fr)
YU (1) YU41383B (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58108624A (ja) * 1981-12-22 1983-06-28 三菱電機株式会社 パツフア−形ガスしや断器
CH662443A5 (de) * 1983-10-28 1987-09-30 Bbc Brown Boveri & Cie Druckgasschalter.
FR2558299B1 (fr) * 1984-01-13 1987-03-20 Alsthom Atlantique Disjoncteur a haute tension a soufflage d'arc
DE3437707A1 (de) * 1984-09-20 1986-03-27 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Druckgasschalter
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
DE3930548C2 (de) * 1989-09-13 1994-05-19 Licentia Gmbh Druckgasschalter
JPH04284319A (ja) * 1991-03-13 1992-10-08 Hitachi Ltd ガス遮断器
DE19519721C1 (de) * 1995-05-30 1996-10-24 Aeg Energietechnik Gmbh Leistungsschalter und Verfahren zur Überwachung des Schalterantriebs
DE19524637C2 (de) * 1995-07-06 1998-03-12 Aeg Energietechnik Gmbh Druckgasschalter
DE19613569A1 (de) * 1996-04-04 1997-10-09 Asea Brown Boveri Leistungsschalter
GB2332566B (en) * 1997-12-19 2001-09-19 Rolls Royce Power Eng Electrical circuit breaker
DE19816505A1 (de) * 1998-04-14 1999-10-21 Asea Brown Boveri Leistungsschalter
DE19816509B4 (de) * 1998-04-14 2006-08-10 Abb Schweiz Ag Abbrandschaltanordnung
DE19859764A1 (de) * 1998-12-23 2000-06-29 Abb Research Ltd Selbstblasschalter
DE19859766A1 (de) * 1998-12-23 2000-06-29 Abb Research Ltd Selbstblasschalter
DE10226044A1 (de) * 2002-06-12 2003-12-24 Alstom Druckgasschalter
DE502007006438D1 (de) * 2007-10-16 2011-03-17 Abb Research Ltd Einem von einem überstromventil gesteuerten entlastungskanal
FR2937179A1 (fr) * 2008-10-09 2010-04-16 Areva T & D Sa Chambre de coupure pour disjoncteur haute tension a soufflage d'arc ameliore
CN102714112B (zh) * 2010-02-04 2016-01-27 三菱电机株式会社 气体断路器
DE112012005206T5 (de) 2011-12-13 2014-09-18 Abb Technology Ag Leistungsschalter mit Fluideinspritzung
JP6320106B2 (ja) * 2014-03-25 2018-05-09 株式会社東芝 ガス遮断器
DE102018211621A1 (de) * 2018-07-12 2020-01-16 Siemens Aktiengesellschaft Gasisolierter Schalter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442010A (en) * 1943-12-24 1948-05-25 Westinghouse Electric Corp Circuit interrupter
DE2349263C2 (de) * 1973-10-01 1982-08-26 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer Druckgasschalter
DE2404721C2 (de) * 1974-02-01 1987-01-02 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer Druckgasleistungsschalter
CH568649A5 (fr) * 1974-07-29 1975-10-31 Sprecher & Schuh Ag
EP0021951A1 (fr) * 1979-06-14 1981-01-07 Merlin Gerin Interrupteur à autosoufflage par aspiration

Also Published As

Publication number Publication date
YU41383B (en) 1987-02-28
US4486632A (en) 1984-12-04
EP0067460B1 (fr) 1985-08-14
EP0067460A1 (fr) 1982-12-22
DE3265381D1 (en) 1985-09-19
YU112982A (en) 1984-12-31

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