EP0033355A1 - Disjoncteur à gaz comprimé - Google Patents

Disjoncteur à gaz comprimé Download PDF

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Publication number
EP0033355A1
EP0033355A1 EP80103499A EP80103499A EP0033355A1 EP 0033355 A1 EP0033355 A1 EP 0033355A1 EP 80103499 A EP80103499 A EP 80103499A EP 80103499 A EP80103499 A EP 80103499A EP 0033355 A1 EP0033355 A1 EP 0033355A1
Authority
EP
European Patent Office
Prior art keywords
pressure
pressure storage
space
arc
gas switch
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.)
Granted
Application number
EP80103499A
Other languages
German (de)
English (en)
Other versions
EP0033355B1 (fr
Inventor
Adrian W. Dr. Dipl.-Ing. Roth
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.)
Rockwell Automation Switzerland GmbH
Original Assignee
Sprecher und Schuh 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 Sprecher und Schuh AG filed Critical Sprecher und Schuh AG
Priority to AT80103499T priority Critical patent/ATE4354T1/de
Publication of EP0033355A1 publication Critical patent/EP0033355A1/fr
Application granted granted Critical
Publication of EP0033355B1 publication Critical patent/EP0033355B1/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
    • H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow

Definitions

  • the present invention relates to a gas pressure switch with a fixed and a movable contact piece which can be brought into and out of engagement with one another, with a blowing nozzle which can be released by the movable contact piece in the course of the switch-off movement and which adjoins an arc chamber on the inlet side, the arc chamber having at least one Inlet pressure relief valve is connected to a pressure storage chamber.
  • the object of the invention is to provide a gas pressure switch which is economically advantageous and is suitable for the interruption of both small and large currents occurring in practice.
  • the pressure accumulator space connected to the arc space via at least one inlet pressure relief valve has at least one outlet check valve connecting the pressure accumulator space to the arc space and that at least one such pressure accumulator space is present.
  • the pressure storage spaces can be connected pneumatically in parallel or in series, the pressure storage space provided for a smaller pressure value in relation to the adjacent pressure storage space being closer to the arc space in a series connection.
  • the pressure storage spaces can also be connected both in series and in parallel.
  • the outlet check valves adjacent to the arc chamber are preferably tangential F latter valves, which bring about a tangential inflow of the gas from the pressure storage chamber into the arc chamber.
  • the pressure storage rooms and the arc room can be equipped with reinforcement and cooling walls made of metal be.
  • the pressure gas switch shown in Fig. 1 has an electronegative gas, e.g. filled with sulfur hexafluoride, consisting of insulating material 1, which carries the fixed contact piece 2 connected to one terminal of the switch.
  • a burning ring 3 made of graphite is placed in front of the fixed contact piece.
  • the movable contact piece 4 is pulled down during a switch-off movement by a drive, not shown, in the sliding contact 5 connected to the other connection of the switch.
  • the blowing nozzle 6 made of insulating material is fastened in the housing 1.
  • the blowing nozzle 6 is connected to the arc chamber 7 on the inlet side.
  • Two pressure storage spaces 8 and 9 are provided, which are closed with the inlet pressure relief valves 10 and 11 and with the outlet check valves 12 and 13.
  • the pressure storage spaces 8 and 9 can be divided by radial partition walls, not shown in FIG. 1.
  • the segment-shaped partial spaces can be provided for different pressure values.
  • the inlet pressure relief valves of the individual segment-shaped subspaces have different response pressure values.
  • cooling fins made of copper sheets must be installed.
  • the mode of operation of the compressed gas switch described with reference to the two figures is as follows: When the device is switched off, the movable contact piece 4 is pulled downward in the arrangement shown in FIG. 1. Between the fixed contact piece 2, respectively. the erosion ring 3 and the movable contact piece 4, an arc arises after the contact separation. The hot and strongly ionized gases that arise flow into the arc chamber and cause a pressure increase there depending on the current to be interrupted.
  • the inlet pressure relief valves 10 have a lower response pressure than the opposite inlet pressure relief valves 11. Accordingly, no inlet pressure relief valve will respond up to a first current limit. This current range is intended for the small currents.
  • a pressure can build up which, after the blowing nozzle 6 has been released by the movable contact piece 4, causes a flow into the blow-out space 21 which is sufficient to extinguish the arc. If, in the event of an interruption, the current carried in the arc exceeds this first limit, the pressure in the arc space 7 also rises above the response value of the inlet pressure relief valves 10. In this case, the pressure which is decisive for blowing the arc becomes in the two spaces, in the arc space 7 and built up in the pressure storage chamber 9. The discharge of the pressure storage space 9 takes place practically without pressure drop via the outlet check valve 12 as soon as the opening of the blowing nozzle 6 is free.
  • the response pressure of the inlet pressure relief valves can be adapted to the preselected current values and thus the switching arc can be extinguished optimally in the entire current range.
  • the mode of operation of the compressed gas switch shown in FIG. 2 is similar to that described above.
  • the two pressure storage spaces 14 and 15 are pneumatically connected in series.
  • the inlet pressure relief valve 16 responds via a first current limit and also the inlet pressure relief valve 17 of the second pressure storage chamber 15 via a second current limit.
  • the discharge pressure chambers are discharged via the outlet check valves 18 and 19 with practically no pressure drop with a free blow nozzle opening.
  • the last outlet check valve 18 bordering the arc space 7 consists of a plurality of tangential flap valves arranged on the circumference, which effect a tangential inflow of the gas which is advantageous for the arc quenching.
  • the cooling of the hot gas flowing into the pressure storage spaces 14 and 15 is favored by the cast aluminum wall 22. This cast aluminum wall also allows the approval of higher pressure values in the Pressure storage spaces 14, 15, and in the arc space 7, which leads to smaller switch dimensions and thus means economic advantages.

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
EP80103499A 1980-01-25 1980-06-23 Disjoncteur à gaz comprimé Expired EP0033355B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80103499T ATE4354T1 (de) 1980-01-25 1980-06-23 Druckgasschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH597/80 1980-01-25
CH597/80A CH649416A5 (de) 1980-01-25 1980-01-25 Druckgasschalter.

Publications (2)

Publication Number Publication Date
EP0033355A1 true EP0033355A1 (fr) 1981-08-12
EP0033355B1 EP0033355B1 (fr) 1983-07-27

Family

ID=4190671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103499A Expired EP0033355B1 (fr) 1980-01-25 1980-06-23 Disjoncteur à gaz comprimé

Country Status (4)

Country Link
EP (1) EP0033355B1 (fr)
AT (1) ATE4354T1 (fr)
CH (1) CH649416A5 (fr)
DE (1) DE3064395D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163943A2 (fr) * 1984-06-07 1985-12-11 BBC Brown Boveri AG Interrupteur à gaz comprimé
DE3440212A1 (de) * 1984-10-10 1986-04-17 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Druckgasschalter
EP0195904A1 (fr) * 1985-02-27 1986-10-01 BBC Brown Boveri AG Interrupteur à gaz comprimé
FR2651065A1 (fr) * 1989-08-18 1991-02-22 Alsthom Gec Disjoncteur a moyenne tension a autosoufflage
DE4412249A1 (de) * 1994-04-06 1995-10-12 Siemens Ag Elektrischer Hochspannungs-Leistungsschalter mit einem Heizraum und einem Kompressionsraum
DE19816509A1 (de) * 1998-04-14 1999-10-21 Asea Brown Boveri Abbrandschaltanordnung
US8150543B2 (en) 2007-09-28 2012-04-03 Siemens Aktiengesellschaft Methods, apparatus and articles for an air jet loom

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1765381A1 (de) * 1967-07-31 1971-07-22 Westinghouse Electric Corp Leistungsschalter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE689851C (de) * 1934-07-31 1940-04-05 Frida Strauss Geb Ruppel Fluessigkeitsfreier Schalter mit Lichtbogenloeschung durch stroemendes Druckgas
FR2266285A1 (en) * 1974-03-27 1975-10-24 Cem Comp Electro Mec Insulating gas contg. cct. breaker - has polyphase insulating casing with embedded current lead bolts coupled to casing metal lining
CH571763A5 (en) * 1974-07-24 1976-01-15 Sprecher & Schuh Ag Temperature-compensated piston-operated pressure gas switch - uses heat sink for switching cylinders to equalize temperature conditions
CH596662A5 (en) * 1976-06-24 1978-03-15 Sprecher & Schuh Ag Compressed gas circuit breaker
DE2741022A1 (de) * 1976-10-20 1978-05-03 Bbc Brown Boveri & Cie Gasschalter mit eigenloeschung
CH618287A5 (en) * 1977-07-26 1980-07-15 Sprecher & Schuh Ag Gas-blast circuit breaker

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1765381A1 (de) * 1967-07-31 1971-07-22 Westinghouse Electric Corp Leistungsschalter

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163943A2 (fr) * 1984-06-07 1985-12-11 BBC Brown Boveri AG Interrupteur à gaz comprimé
DE3425633A1 (de) * 1984-06-07 1985-12-12 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Druckgasschalter
EP0163943A3 (en) * 1984-06-07 1986-12-30 Bbc Aktiengesellschaft Brown, Boveri & Cie. Gas-blast switch
DE3440212A1 (de) * 1984-10-10 1986-04-17 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Druckgasschalter
EP0195904A1 (fr) * 1985-02-27 1986-10-01 BBC Brown Boveri AG Interrupteur à gaz comprimé
EP0415098A1 (fr) * 1989-08-18 1991-03-06 Gec Alsthom Sa Disjoncteur à moyennne tension à autosoufflage
FR2651065A1 (fr) * 1989-08-18 1991-02-22 Alsthom Gec Disjoncteur a moyenne tension a autosoufflage
US5179257A (en) * 1989-08-18 1993-01-12 Gec Alsthom Sa Medium-voltage gas circuit-breaker
DE4412249A1 (de) * 1994-04-06 1995-10-12 Siemens Ag Elektrischer Hochspannungs-Leistungsschalter mit einem Heizraum und einem Kompressionsraum
DE19816509A1 (de) * 1998-04-14 1999-10-21 Asea Brown Boveri Abbrandschaltanordnung
US6100492A (en) * 1998-04-14 2000-08-08 Asea Brown Boveri Ag Consumable switching arrangement
DE19816509B4 (de) * 1998-04-14 2006-08-10 Abb Schweiz Ag Abbrandschaltanordnung
US8150543B2 (en) 2007-09-28 2012-04-03 Siemens Aktiengesellschaft Methods, apparatus and articles for an air jet loom

Also Published As

Publication number Publication date
EP0033355B1 (fr) 1983-07-27
CH649416A5 (de) 1985-05-15
ATE4354T1 (de) 1983-08-15
DE3064395D1 (en) 1983-09-01

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