EP0175209A2 - Interrupteur à gaz comprimé - Google Patents

Interrupteur à gaz comprimé Download PDF

Info

Publication number
EP0175209A2
EP0175209A2 EP85111129A EP85111129A EP0175209A2 EP 0175209 A2 EP0175209 A2 EP 0175209A2 EP 85111129 A EP85111129 A EP 85111129A EP 85111129 A EP85111129 A EP 85111129A EP 0175209 A2 EP0175209 A2 EP 0175209A2
Authority
EP
European Patent Office
Prior art keywords
storage space
insulating gas
arc extinguishing
channel
extinguishing zone
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
EP85111129A
Other languages
German (de)
English (en)
Other versions
EP0175209A3 (en
EP0175209B1 (fr
Inventor
Friedrich Dr. Pinnekamp
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 EP0175209A2 publication Critical patent/EP0175209A2/fr
Publication of EP0175209A3 publication Critical patent/EP0175209A3/de
Application granted granted Critical
Publication of EP0175209B1 publication Critical patent/EP0175209B1/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

Definitions

  • the invention starts with a compressed gas switch according to the preamble of claim 1.
  • the invention relates to a prior art as described in US Pat. No. 4,139,752.
  • insulating gas heated by the switching arc is guided into a storage space when it is switched off.
  • the stored gas is conducted via an annular channel into the arc extinguishing zone located between the open contact pieces in order to blow the switching arc.
  • the storage space is connected via a check valve to the compression space of a compression device for insulating gas which is actuated when the switch is turned off.
  • the invention as characterized in claim 1 solves the problem of specifying a gas pressure switch of the generic type, in which the breaking capacity is significantly increased by improving the quality of the stored gas.
  • the single figure shows a top view of an axially sectioned embodiment of the compressed gas switch according to the invention, the left half showing the switch-on state and the right half the switch-off state.
  • 1 denotes an essentially hollow cylindrical housing. This housing is filled with an insulating gas, such as sulfur hexafluoride at a pressure of a few bar.
  • the housing 1 contains two switching pieces 2 and 3 which are movable relative to one another along an axis and which engage with one another in the switched-on state of the compressed gas switch (left half of the figure) and, when switched off (right half of the figure), delimit an arc extinguishing zone 4 in which a switching arc 5 burns.
  • Both contact pieces 2, 3 are designed to be erosion-resistant at the mutually facing ends and have gas inlet openings 6 and 7 there. Downstream, the switching pieces 2 and 3 have gas outlet openings which are not shown in the figure.
  • the gas inlet opening 7 of the switching element 3 is dimensioned such that the fixed switching element 2 can enter this opening when switched on and then forms an approximately gas-tight switching element overlap with the moving switching element 3. Both contact pieces 2 and 3 are connected in an electrically conductive manner to power connections (not shown in the figure) led into the housing 1.
  • Both contact pieces 2 and 3 are surrounded by an insulating body 8 made of an arc-proof material such as polytetrafluoroethylene.
  • This insulating body 8 is rigidly connected to the movable contact piece 3 and has an upper annular opening which is penetrated by the fixed contact piece 2 in the switched-on state.
  • two spaces surrounding the switching pieces 2 and 3 are also recessed.
  • One of these two rooms is a storage space 9. This space is used primarily for storing gas, which the arc 5 heats up during switching off.
  • the other of these two spaces is a compression space 10 of a compression device with a movable annular cylinder 11 and a fixed annular piston 12.
  • annular partition 14 made of erosion-resistant insulating material and fastened to the insulating body 8 by means of webs 13.
  • This wall together with the insulating body 8, delimits an angled annular channel 15.
  • a section 16 of this annular channel extends essentially perpendicular to the contact piece axis and connects when it is switched off switch the arc extinguishing zone 4 with a second section 17 of the ring channel 15, which in turn extends essentially in the axial direction and connects the section 16 to the storage space 9.
  • the annular channel 15 and the compression space 10 are connected to one another via an annular flow constriction 18.
  • the flow constriction has a contour which forms a free jet 19 directed into the section 17 of the annular channel 15 when a compression pressure occurs in the compression space 10.
  • the opening of this ring channel to the storage space 9 is axially offset from the corresponding opening of the ring channel 15 in the direction of the fixed contact piece 2 in the insulating body 8.

Landscapes

  • Circuit Breakers (AREA)
  • Safety Valves (AREA)
EP85111129A 1984-09-20 1985-09-04 Interrupteur à gaz comprimé Expired - Lifetime EP0175209B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH450284 1984-09-20
CH4502/84 1984-09-20

Publications (3)

Publication Number Publication Date
EP0175209A2 true EP0175209A2 (fr) 1986-03-26
EP0175209A3 EP0175209A3 (en) 1987-03-25
EP0175209B1 EP0175209B1 (fr) 1990-08-16

Family

ID=4277299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111129A Expired - Lifetime EP0175209B1 (fr) 1984-09-20 1985-09-04 Interrupteur à gaz comprimé

Country Status (4)

Country Link
US (1) US4633049A (fr)
EP (1) EP0175209B1 (fr)
JP (1) JPH0690899B2 (fr)
DE (2) DE3437707A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0475436B1 (fr) * 1990-09-14 1996-01-31 Max Co., Ltd. Agrafeuse électrique avec magasin fixe et immobile
DE19629475A1 (de) * 1996-07-10 1998-01-15 Siemens Ag Druckgasleistungsschalter
DE29618708U1 (de) * 1996-10-18 1998-02-19 Siemens Ag Druckgasleistungsschalter
WO2010112058A1 (fr) * 2009-03-30 2010-10-07 Abb Research Ltd Disjoncteur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2710868A1 (de) * 1977-03-12 1978-09-14 Licentia Gmbh Autopneumatischer leistungsschalter mit isolierstoffduese
US4139752A (en) * 1975-05-30 1979-02-13 Mitsubishi Denki Kabushiki Kaisha Gas-type circuit-breaker
EP0042456A1 (fr) * 1980-06-23 1981-12-30 BBC Aktiengesellschaft Brown, Boveri & Cie. Disjoncteur haute tension
FR2520928A1 (fr) * 1982-02-04 1983-08-05 Alsthom Atlantique Disjoncteur a auto-soufflage pneumatique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2350832B2 (de) * 1973-10-10 1980-05-08 Calor-Emag Elektrizitaets-Aktiengesellschaft, 4030 Ratingen Hochspannungsschalter
CH594281A5 (fr) * 1976-05-24 1978-01-13 Bbc Brown Boveri & Cie
FR2373141A1 (fr) * 1976-12-06 1978-06-30 Cem Comp Electro Mec Appareil electrique de coupure a haute tension, notamment un disjoncteur a autosoufflage de l'arc de coupure par un gaz
CH629332A5 (de) * 1977-03-24 1982-04-15 Mitsubishi Electric Corp Stromunterbrecher mit lichtbogenloeschkammer.
CH618287A5 (en) * 1977-07-26 1980-07-15 Sprecher & Schuh Ag Gas-blast circuit breaker
DE3065575D1 (en) * 1980-03-10 1983-12-22 Sprecher & Schuh Ag Gas-blast circuit breaker
DE3265381D1 (en) * 1981-06-12 1985-09-19 Bbc Brown Boveri & Cie High-voltage power circuit breaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139752A (en) * 1975-05-30 1979-02-13 Mitsubishi Denki Kabushiki Kaisha Gas-type circuit-breaker
DE2710868A1 (de) * 1977-03-12 1978-09-14 Licentia Gmbh Autopneumatischer leistungsschalter mit isolierstoffduese
EP0042456A1 (fr) * 1980-06-23 1981-12-30 BBC Aktiengesellschaft Brown, Boveri & Cie. Disjoncteur haute tension
FR2520928A1 (fr) * 1982-02-04 1983-08-05 Alsthom Atlantique Disjoncteur a auto-soufflage pneumatique

Also Published As

Publication number Publication date
JPH0690899B2 (ja) 1994-11-14
EP0175209A3 (en) 1987-03-25
EP0175209B1 (fr) 1990-08-16
US4633049A (en) 1986-12-30
DE3579204D1 (de) 1990-09-20
JPS61112873A (ja) 1986-05-30
DE3437707A1 (de) 1986-03-27

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