EP0081253A1 - Interrupteur à gaz comprimé - Google Patents

Interrupteur à gaz comprimé Download PDF

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Publication number
EP0081253A1
EP0081253A1 EP82201381A EP82201381A EP0081253A1 EP 0081253 A1 EP0081253 A1 EP 0081253A1 EP 82201381 A EP82201381 A EP 82201381A EP 82201381 A EP82201381 A EP 82201381A EP 0081253 A1 EP0081253 A1 EP 0081253A1
Authority
EP
European Patent Office
Prior art keywords
inflow channel
switch
flow cross
minimum flow
section
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.)
Ceased
Application number
EP82201381A
Other languages
German (de)
English (en)
Inventor
Osvin Gaupp
Thomas Gysel
Georg Köppl
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
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of EP0081253A1 publication Critical patent/EP0081253A1/fr
Ceased 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
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
    • 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
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7069—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by special dielectric or insulating properties or by special electric or magnetic field control properties

Definitions

  • Such a switch is known for example from DE-OS 29 30 839.
  • the minimum flow cross-section of the inner inflow channel is not only considerably smaller than that of the outer inflow channel, but also the inner inflow channel is connected to a room in which the extinguishing gas has a significantly higher pressure when it is switched off than in that room , which is connected to the outer inflow channel.
  • the quenching gas blowing the arc during the switch-off process therefore has a considerably higher speed in the area of the outlet opening from the inner inflow channel than in the area of the outlet opening from the outer inflow channel.
  • the quenching gas component with the high exit speed drives the base point of the switching arc into the hollow erosion contact of the first contact and, together with the quenching gas component with the lower exit speed, swirls the arc gases and thus extinguishes the arc.
  • the switch according to the invention is distinguished by the fact that the insulating material nozzle can be subjected to high thermal and dielectric loads on its surface facing the switching path, and at the same time an optimum pressure distribution of the extinguishing gas is established in the switching path to control the recurring voltage in the event of distance and terminal short-circuits.
  • the fixed contact 1 has, for example, a hollow erosion contact 3 and a hollow nominal current contact 4 surrounding this erosion contact and the movable contact 2 has a hollow erosion contact 5 and a nominal current contact 6 surrounding this erosion contact.
  • the ring body 8 is arranged on webs 9 which are fastened between the movable erosion contact 5 and the movable nominal current contact 6.
  • the webs 9 are separated from one another by gas passages which connect the connections between the inflow channel 10 and an annular inflow channel 11 delimited by the inner surface of the ring body 8 and the outer surface of the movable erosion contact 5 with a compression space 12 of a piston-cylinder compression device, the fixed piston of which 13 is caused.
  • the annular inflow channels 10 and 11 taper downstream and have minimal flow cross sections 14 and 15 shortly before their downstream ends.
  • a conductive ring 16 preferably made of erosion-resistant contact material, is attached at the narrowest point of the ring body 8, the clear width of which is less than that of the ring body 8.
  • the entire contact arrangement is with an extinguishing gas, preferably Sulfur hexafluoride, filled from a few bar pressure.
  • Such a pressure distribution has the effect that, because of the pressure peak provided at a, the ionized particles are quickly removed from the part of the switching path located in the region of the outlet opening of the inflow channel 11. As a result, the voltage peaks that occur when switching off short-circuit short-circuit currents can be safely controlled.
  • the flat pressure distribution caused by the blowing from the external inflow channel 10 produces a uniformly high dielectric strength over the entire switching path, as a result of which the high recurring voltages occurring when switching terminal short-circuit currents can be easily absorbed by the switching path.
  • the above-described desired pressure distribution over the switch axis is achieved in that the minimum flow cross section 14 of the outer inflow channel 10 is smaller than the minimum flow cross section 15 of the inner inflow channel 11. It is particularly advisable and worth dimensioning the minimum flow cross-section 15 of the inner inflow channel 11 to 1.5 to 4 times the minimum flow cross-section 14 of the outer inflow channel 10.
  • the conductive ring 16 not only provides the seal desired in the initial phase of the switch-off process of the internal inflow channel 11 with respect to the upper part of the switching path, but moreover also has the effect that, after releasing the constriction of this ring, the switching arc does not come into direct contact with the insulating material of the ring body 8 and, at the same time, it contacts the erosion contacts 3 due to capacitive feedback and 5 homogenizes the electric field of the switching path.
  • This homogenization of the electrical field of the switching path considerably reduces the risk of leakage currents and glow discharges being formed on the thermally and dielectrically highly stressed surface of the insulating material nozzle 7, even under extreme loads.

Landscapes

  • Circuit Breakers (AREA)
EP82201381A 1981-12-03 1982-11-04 Interrupteur à gaz comprimé Ceased EP0081253A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH773181 1981-12-03
CH7731/81 1981-12-03

Publications (1)

Publication Number Publication Date
EP0081253A1 true EP0081253A1 (fr) 1983-06-15

Family

ID=4329633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82201381A Ceased EP0081253A1 (fr) 1981-12-03 1982-11-04 Interrupteur à gaz comprimé

Country Status (4)

Country Link
US (1) US4445019A (fr)
EP (1) EP0081253A1 (fr)
JP (1) JPS58103733A (fr)
BR (1) BR8206973A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0311017A2 (fr) † 1987-10-05 1989-04-12 Mitsubishi Denki Kabushiki Kaisha Dispositif d'extinction d'arc pour disjoncteur
WO2008012238A1 (fr) * 2006-07-24 2008-01-31 Siemens Aktiengesellschaft Buse de matière isolante, laquelle comporte un premier et un deuxième matériau
DE102009009451A1 (de) * 2009-02-13 2010-08-19 Siemens Aktiengesellschaft Schaltgeräteanordnung mit einer Schaltstrecke
WO2015158544A1 (fr) 2014-04-15 2015-10-22 Abb Technology Ag Dispositif interrupteur haute tension à buse auxiliaire

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453591A (en) * 1994-04-05 1995-09-26 Abb Power T&D Company Inc. Sensing structure for component wear in high voltage circuit interrupters
JP4003492B2 (ja) * 2002-03-14 2007-11-07 株式会社日立製作所 集電子
EP1544881B1 (fr) * 2003-12-19 2007-01-24 ABB Technology AG Dispositif de commutation à isolation gazeuse avec une buse
CN112289628B (zh) * 2020-10-20 2023-02-24 西安西电开关电气有限公司 一种双压力膨胀室灭弧室

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1180025B (de) * 1958-10-07 1964-10-22 E H Erwin Marx Dr Ing Dr Ing Elektrischer Stroemungsschalter mit mehreren Ausstroemduesen
FR2323222A1 (fr) * 1975-09-08 1977-04-01 Siemens Ag Disjoncteur a gaz comprime
GB1530119A (en) * 1976-01-09 1978-10-25 Reyrolle Parsons Ltd High-voltage circuit breakers
FR2473777A1 (fr) * 1980-01-11 1981-07-17 Sprecher & Schuh Ag Element isolant pour dispositif de commutation electrique et application a une buse de soufflage d'un disjoncteur a gaz comprime

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1180025B (de) * 1958-10-07 1964-10-22 E H Erwin Marx Dr Ing Dr Ing Elektrischer Stroemungsschalter mit mehreren Ausstroemduesen
FR2323222A1 (fr) * 1975-09-08 1977-04-01 Siemens Ag Disjoncteur a gaz comprime
GB1530119A (en) * 1976-01-09 1978-10-25 Reyrolle Parsons Ltd High-voltage circuit breakers
FR2473777A1 (fr) * 1980-01-11 1981-07-17 Sprecher & Schuh Ag Element isolant pour dispositif de commutation electrique et application a une buse de soufflage d'un disjoncteur a gaz comprime

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0311017A2 (fr) † 1987-10-05 1989-04-12 Mitsubishi Denki Kabushiki Kaisha Dispositif d'extinction d'arc pour disjoncteur
EP0311017B2 (fr) † 1987-10-05 1998-09-16 Mitsubishi Denki Kabushiki Kaisha Dispositif d'extinction d'arc pour disjoncteur
WO2008012238A1 (fr) * 2006-07-24 2008-01-31 Siemens Aktiengesellschaft Buse de matière isolante, laquelle comporte un premier et un deuxième matériau
US8129647B2 (en) 2006-07-24 2012-03-06 Siemens Aktiengesellschaft Insulating nozzle, comprising a first material and a second material
CN101496123B (zh) * 2006-07-24 2012-12-05 西门子公司 具有第一种材料和第二种材料的绝缘材料喷嘴
DE102009009451A1 (de) * 2009-02-13 2010-08-19 Siemens Aktiengesellschaft Schaltgeräteanordnung mit einer Schaltstrecke
US8598483B2 (en) 2009-02-13 2013-12-03 Siemens Aktiengesellschaft High-voltage power switch having a contact gap equipped with switching gas deflection elements
WO2015158544A1 (fr) 2014-04-15 2015-10-22 Abb Technology Ag Dispositif interrupteur haute tension à buse auxiliaire

Also Published As

Publication number Publication date
US4445019A (en) 1984-04-24
BR8206973A (pt) 1983-10-11
JPS58103733A (ja) 1983-06-20

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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

Designated state(s): CH DE FR IT LI

17P Request for examination filed

Effective date: 19830923

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19841118

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GAUPP, OSVIN

Inventor name: KOEPPL, GEORG

Inventor name: GYSEL, THOMAS