EP1207544B1 - Régions de contact pour disjoncteur - Google Patents

Régions de contact pour disjoncteur Download PDF

Info

Publication number
EP1207544B1
EP1207544B1 EP00811091A EP00811091A EP1207544B1 EP 1207544 B1 EP1207544 B1 EP 1207544B1 EP 00811091 A EP00811091 A EP 00811091A EP 00811091 A EP00811091 A EP 00811091A EP 1207544 B1 EP1207544 B1 EP 1207544B1
Authority
EP
European Patent Office
Prior art keywords
contact
cover
edge
contact zone
zone according
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
EP00811091A
Other languages
German (de)
English (en)
Other versions
EP1207544A1 (fr
Inventor
Lukas Dr. Zehnder
Michael Dr. Mendik
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.)
ABB Schweiz AG
Original Assignee
ABB Schweiz 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 ABB Schweiz AG filed Critical ABB Schweiz AG
Priority to EP00811091A priority Critical patent/EP1207544B1/fr
Priority to DE50012993T priority patent/DE50012993D1/de
Priority to US09/986,878 priority patent/US6740837B2/en
Priority to JP2001350250A priority patent/JP3777116B2/ja
Priority to RU2001130982/09A priority patent/RU2273071C2/ru
Priority to CN01130373.5A priority patent/CN1205635C/zh
Publication of EP1207544A1 publication Critical patent/EP1207544A1/fr
Application granted granted Critical
Publication of EP1207544B1 publication Critical patent/EP1207544B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01H33/7069—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
    • 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
    • H01H33/7038—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting tubular gas flow enhancing nozzle

Definitions

  • the invention is based on a contact zone for a circuit breaker according to the preamble of claim 1.
  • a filled with an insulating gas circuit breaker which can be used in an electrical high-voltage network.
  • This circuit breaker has a cylindrically formed quenching chamber with a lying in its power flow contact zone.
  • two fixed Abbrandcarde arranged on a central axis are provided, which are electrically connected in the on state of the circuit breaker by a bridging contact.
  • the bridging contact is arranged here in the interior of the rotationally symmetrical Abbrandcarde.
  • the mutually facing end faces of the Abbrandcarde are covered at least partially insulating.
  • the attachment of the insulating cover is relatively expensive, since this cover can distort under the influence of prevailing in the arc zone temperatures.
  • the invention solves the problem of providing a contact zone for a circuit breaker, in which insulating covers for the end faces of the Abbrand tokene are dielectrically low and easy to assemble.
  • This invention is based on the contact zone of a rotationally symmetrical about a central axis, filled with an insulating medium quenching chamber, with at least two fixed, designed as contact rings Abbrandcarden which are electrically connected in the closed state of the quenching chamber by a centrally located and axially movable bridging contact with the mutually facing end faces at least partially covering electrically insulating covers. Between a support surface and an insulating cover, a ring-shaped annular gap with a wedge-shaped cross-section is provided for the first time, which opens in the radial direction, the edge being dielectrically shielded by means of an annular bead projecting beyond the support surface.
  • a particular advantage is the fact that the edge is always pressed by spring force against the support surface, thereby ensuring that no burned particles can get into the annular gap, where they could have a detrimental effect on the dielectric.
  • the single FIGURE shows a greatly simplified partial section through the contact zone of a circuit breaker in the off state.
  • the figure shows a greatly simplified partial section through the contact zone 1 of a circuit breaker in the off state.
  • the contact zone 1 is part of the power circuit of the circuit breaker.
  • the circuit breaker is installed in a housing, not shown, which is filled with an insulating medium.
  • This contact zone 1 is arranged rotationally symmetrical about a central axis 2.
  • An upper metallic holder 3 carries an upper contact ring 4, which is made of a erosion-resistant metallic material.
  • the upper contact ring 4 on a bearing surface 7, which merges on the side facing away from the central axis 2 dielectrically favorable rounded into the cylindrical surface 5.
  • the bearing surface 7 is delimited by a patch bead 8 which is of a low dielectric design.
  • the bead 8 merges on the side facing the central axis 2 into a region of the upper contact ring 4 formed as a nozzle groove 9.
  • an edge 10 of a cover 11 On the support surface 7, immediately adjacent to the bead 8, an edge 10 of a cover 11, and indeed this edge 10 is covered by the bead 8 against influences from the direction of the central axis 2 ago, in particular, this heat radiation and by the flow of be hot gases entrained particles.
  • the cover 11 is annular, it has in the region of the overlap of the support surface 7 has a rectangular cross-section.
  • the support surface 7 facing side of the cover 11 is shaped so that only the edge 10 rests on this.
  • an annular gap 11 a Between the bearing surface 7 and its side facing the cover 11 remains an annular gap 11 a, which has a wedge-shaped cross-section.
  • the extension 12 forms a bowl-shaped edge which extends upwards.
  • this extension 12 is not slotted, a stiffer material is used, so axially directed slots are provided in the edge.
  • an undercut 13 is attached, which snaps behind the collar 6. The cover 11 is pressed by the spring force of the extension 12 against the support surface 7 and held in position.
  • the extension 12 is also covered against direct thermal effects from the direction of the central axis 2 ago, so that its spring force, despite the high temperatures occurring in its vicinity, always maintained.
  • this contact zone 1 Mirrored to a plane perpendicular to the central axis 2 of this contact zone 1 associated, almost identically formed counter contact is arranged. It consists of a lower metallic support 14, which carries a lower contact ring 15, which is made of a erosion-resistant metallic material. In the contact ring 15 is a groove 16 pierced, one of which is remote from the central axis 2 flank provided with an internal thread 17. Perpendicular to the central axis 2, the lower contact ring 15 has a bearing surface 18, which merges on the side remote from the central axis 2 in a dielectrically favorably rounded manner into the other flank of the groove 16. On the side facing the central axis 2, the support surface 18 is bounded by a patch, bulge 19 which is of low dielectric strength.
  • the bead 19 is generally the same design as the bead 8.
  • the bead 19 goes on the central axis 2 side facing in a nozzle groove 20 formed as the region of the lower contact ring 15 via.
  • the nozzle throat 20 generally has the same cross-section as the nozzle groove 9.
  • the cover 22 is, similar to the cover 11, of annular design, it has in the region of the overlap of the support surface 18 has a rectangular cross-section.
  • the support surface 18 facing side of the cover 11 is shaped so that only the edge 21 rests on this.
  • an annular gap 22a which has a wedge-shaped cross-section.
  • On the rectangular cross-section outside a slightly elastic extension 23 is formed.
  • the extension 23 forms a bell-shaped edge, which extends downwards. If the insulating material from which the cover 22 is made sufficiently elastic, so this extension 23 is not slotted, a stiffer material is used, so axially directed slots are provided.
  • an external thread is provided on the side remote from the central axis 2, which is screwed into the internal thread 17 of the contact ring 15.
  • the cover 22 is pressed by the spring force of the extension 23 against the support surface 18 and held in position.
  • the extension 23 is also covered against direct thermal effects from the direction of the central axis 2 ago, so that its spring force, despite the high temperatures occurring in its vicinity, always maintained.
  • the cover 11 may be provided with a threaded fastener as well as the cover 22 and also the cover 22 may be held with a snap-fastening like the cover 11.
  • the variants of the cover 11, or 22 shown here can also be designed differently.
  • an annular flow gap 24 is provided here, which allows a burning of the heated gas from the arc chamber 25 in the heating volume 26 when the arc is blown, the stored in the heating volume 26 pressurized gases flow in reverse direction through the flow gap 24 in the arc space 25 and from there into the exhaust volumes 27 and 28th
  • edges 10 and 21 represent a kind of triple points, which are very effectively dielectrically shielded by the metallic beads 8 and 19, respectively.
  • the material of the covers 11 and 22 disappear somewhat as a result of thermal overload, it is, because of the bias of the extensions 12 and 23 and because of the wedge-shaped annular gap 11a or 22a between the respective support surface 7 or 18 and the cover 11 or 22 ensures that the covers 11 and 22 still rest with an edge on the respective bearing surfaces 7 and 18 respectively. In the annular gap 11a or 22a can not reach a negative dielectric effect burning particles.

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Claims (6)

  1. Zone de contact (1) d'une chambre d'extinction d'arc disposée de façon symétrique en rotation autour d'un axe central (2), remplie d'un agent isolant, avec au moins deux contacts de combustion fixes, conçus en tant que bagues de contact (4, 15), qui lorsque la chambre d'extinction d'arc est fermée, sont reliés de façon conductrice d'électricité par un contact de court-circuit disposé de façon centrale et mobile en direction axiale, avec des calottes d'isolation électrique (11, 22) recouvrant au moins en partie les surfaces frontales des bagues de contact (4, 15) qui se font face, caractérisée
    - en ce qu'entre une surface d'appui (7, 18) d'une bague de contact (4, 15) et une calotte isolante (11, 22), on a prévu une fente annulaire cunéiforme (11a, 22a) s'ouvrant en direction radiale et partant d'une arête soutenue (10, 21) de la calotte (11, 22), et
    - en ce que l'arête (10, 21) est blindée de façon diélectrique, au moyen d'un bourrelet annulaire (8, 19) saillant par-dessus la surface d'appui (7, 18).
  2. Zone de contact selon la revendication 1, caractérisée en ce que
    - l'arête (10, 21) est disposée à proximité directe du bourrelet annulaire (8, 19).
  3. Zone de contact selon l'une quelconque des revendications 1 ou 2, caractérisée
    - en ce que dans la zone du chevauchement de la surface d'appui (7, 18), la calotte (11, 22) comporte une section transversale rectangulaire, et
    - en ce qu'à l'extérieur, sur cette section transversale rectangulaire, un prolongement élastique (12, 23) est formé en tant que bordure s'étendant en direction axiale.
  4. Zone de contact selon la revendication 3, caractérisée
    - en ce que la bordure est munie de moyens permettant une liaison mécanique de la calotte (11, 22) avec la bague de contact (4, 15), et
    - en ce que la liaison mécanique est assurée de façon à ce que l'arête (10, 21) soit toujours pressée de façon élastique contre la surface d'appui (7, 18).
  5. Zone de contact selon la revendication 4, caractérisée
    - en ce que la liaison mécanique est conçue de façon amovible.
  6. Zone de contact selon la revendication 5, caractérisée
    - en ce qu'on a prévu un dispositif d'enclenchement ou un assemblage par vis en tant que liaison mécanique.
EP00811091A 2000-11-17 2000-11-17 Régions de contact pour disjoncteur Expired - Lifetime EP1207544B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP00811091A EP1207544B1 (fr) 2000-11-17 2000-11-17 Régions de contact pour disjoncteur
DE50012993T DE50012993D1 (de) 2000-11-17 2000-11-17 Kontaktzone für einen Leistungsschalter
US09/986,878 US6740837B2 (en) 2000-11-17 2001-11-13 Contact zone for a power breaker
JP2001350250A JP3777116B2 (ja) 2000-11-17 2001-11-15 電力遮断器用の接触領域
RU2001130982/09A RU2273071C2 (ru) 2000-11-17 2001-11-16 Контактная зона силового выключателя
CN01130373.5A CN1205635C (zh) 2000-11-17 2001-11-19 用于功率开关的接触区

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00811091A EP1207544B1 (fr) 2000-11-17 2000-11-17 Régions de contact pour disjoncteur

Publications (2)

Publication Number Publication Date
EP1207544A1 EP1207544A1 (fr) 2002-05-22
EP1207544B1 true EP1207544B1 (fr) 2006-06-14

Family

ID=8175036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00811091A Expired - Lifetime EP1207544B1 (fr) 2000-11-17 2000-11-17 Régions de contact pour disjoncteur

Country Status (6)

Country Link
US (1) US6740837B2 (fr)
EP (1) EP1207544B1 (fr)
JP (1) JP3777116B2 (fr)
CN (1) CN1205635C (fr)
DE (1) DE50012993D1 (fr)
RU (1) RU2273071C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1392729B1 (it) * 2009-01-12 2012-03-16 Bticino Spa Interruttore elettrico ad elevate prestazioni
CN102714112B (zh) * 2010-02-04 2016-01-27 三菱电机株式会社 气体断路器
CN104126213B (zh) * 2012-03-16 2016-08-24 三菱电机株式会社 气体断路器
CN105359242B (zh) * 2013-07-19 2017-08-18 株式会社日立制作所 气体断路器
JP6289856B2 (ja) * 2013-10-16 2018-03-07 株式会社東芝 ガス遮断器
JP6382543B2 (ja) * 2014-03-24 2018-08-29 株式会社東芝 ガス遮断器
JP6320106B2 (ja) * 2014-03-25 2018-05-09 株式会社東芝 ガス遮断器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590188A (en) * 1966-09-01 1971-06-29 Westinghouse Electric Corp Fluid-blast circuit interrupter with piston assembly and electromagnetic driving means
US3524958A (en) * 1966-09-01 1970-08-18 Westinghouse Electric Corp Fluid-blast circuit interrupters having electromagnetic piston-driving means
SU462223A1 (ru) * 1973-07-30 1975-02-28 Предприятие П/Я А-7904 Вакуумна дугогасительна камера
DE8125499U1 (de) * 1981-08-28 1986-07-31 Siemens AG, 1000 Berlin und 8000 München Druckgasschalter
DE3322597A1 (de) * 1983-05-31 1984-12-06 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Druckgasschalter
DE3424966A1 (de) * 1984-07-06 1986-01-16 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer gasstroemungsschalter
DE3431288A1 (de) * 1984-08-23 1986-03-06 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer niederspannungs-leistungsschalter mit einem zweiarmigen kontakthebel
EP0270895A1 (fr) * 1986-12-08 1988-06-15 BBC Brown Boveri AG Interrupteur à gaz comprimé
JPS63211532A (ja) * 1987-02-26 1988-09-02 三菱電機株式会社 ガス開閉器
SU1684822A1 (ru) * 1989-11-27 1991-10-15 Институт Физики Ан Киргсср Способ ограничени распространени разр дов по поверхности диэлектрика
FR2688625B1 (fr) * 1992-03-13 1997-05-09 Merlin Gerin Contact d'un disjoncteur a boitier moule
US5351024A (en) * 1993-03-08 1994-09-27 Eaton Corporation Electrical contactor and interrupter employing a rotary disc
DE19613568A1 (de) * 1996-04-04 1997-10-09 Asea Brown Boveri Leistungsschalter

Also Published As

Publication number Publication date
JP2002203463A (ja) 2002-07-19
RU2273071C2 (ru) 2006-03-27
CN1205635C (zh) 2005-06-08
EP1207544A1 (fr) 2002-05-22
US6740837B2 (en) 2004-05-25
JP3777116B2 (ja) 2006-05-24
US20020060203A1 (en) 2002-05-23
DE50012993D1 (de) 2006-07-27
CN1354488A (zh) 2002-06-19

Similar Documents

Publication Publication Date Title
DE19717802B4 (de) Funkenstrecke
DE19816505A1 (de) Leistungsschalter
DE19510850C1 (de) Vakuumschaltröhre
DE2934236A1 (de) Ueberspannungsableiter mit funkenstrecke
EP0895643B1 (fr) Ensemble interrupteur d'un sectionneur de puissance haute tension
DE2934237A1 (de) Ueberspannungsableiter
EP1605485B1 (fr) Disjoncteur
EP1207544A1 (fr) Régions de contact pour disjoncteur
DE2441561B2 (de) Druckgasschalter
DE69506581T2 (de) Hochspannungsschalter mit selbstbeblasung
EP0951038B2 (fr) Agencement de contacts d' arc
EP1747608A1 (fr) Eclateur a haute performance encapsule, resistant a la pression, d'etancheite non hermetique et a symetrie de rotation
EP1831906B1 (fr) Disjoncteur presentant une ligne de courant de court-circuit resistant au feu
EP2180492B1 (fr) Chambre de commutation pour un disjoncteur haute tension et disjoncteur haute tension
DE19506057B4 (de) Löschfunkenstreckenanordnung
EP1835520B1 (fr) Chambre d'interruption pour interrupteur haute tension isolé à gaz
DE4422316A1 (de) Vakuumschaltröhre mit ringförmigem Isolator
DE2056526A1 (de) Überspannungsableiter mit ausstoßbar angeordnetem Erdleiter
EP0817228B1 (fr) Sectionneur de puissance
DE10118210B4 (de) Gekapselter Überspannungsableiter mit einer Funkenstreckenanordnung
DE824228C (de) UEberspannungsschutzsicherung
DE19705158A1 (de) Vakuumschaltkammer
DE29720529U1 (de) Zündkerze und Zündkerzen-Anordnung in einem Verbrennungsmotor
EP2080253A1 (fr) Eclateur a haute puissance, encapsule, resistant a la pression, etanche mais non hermetique et a symetrie de rotation
DE2126349C2 (de) Elektrischer Druckgasschalter

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

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020927

AKX Designation fees paid

Designated state(s): CH DE FR IT LI SE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060614

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 50012993

Country of ref document: DE

Date of ref document: 20060727

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070315

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20081114

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20091126

Year of fee payment: 10

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101117

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20171121

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20171120

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50012993

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190601

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20191120

Year of fee payment: 20