EP0951038B1 - Agencement de contacts d' arc - Google Patents

Agencement de contacts d' arc Download PDF

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Publication number
EP0951038B1
EP0951038B1 EP99810170A EP99810170A EP0951038B1 EP 0951038 B1 EP0951038 B1 EP 0951038B1 EP 99810170 A EP99810170 A EP 99810170A EP 99810170 A EP99810170 A EP 99810170A EP 0951038 B1 EP0951038 B1 EP 0951038B1
Authority
EP
European Patent Office
Prior art keywords
contact
arrangement according
consumable
switching
switching arrangement
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
EP99810170A
Other languages
German (de)
English (en)
Other versions
EP0951038A1 (fr
EP0951038B2 (fr
Inventor
Lukas Dr. Zehnder
Robert Anderes
Christian Dähler
Kurt Dr. Kaltenegger
Thomas Dr. Schoenemann
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7864486&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0951038(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ABB Schweiz AG filed Critical ABB Schweiz AG
Publication of EP0951038A1 publication Critical patent/EP0951038A1/fr
Publication of EP0951038B1 publication Critical patent/EP0951038B1/fr
Application granted granted Critical
Publication of EP0951038B2 publication Critical patent/EP0951038B2/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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H01H1/385—Contact arrangements for high voltage gas blast circuit breakers

Definitions

  • the invention relates to a burnup circuit arrangement especially for circuit breakers, as used in power plants, Substations and other facilities of the Electric power supply for switching on and off of Operating and overcurrents are used.
  • EP-B-0 177 714 is a generic Abbrandschaltan extract known, in which the first Contact piece as a contact tulip with several longer, over the Scope of the same distributed parallel contact fingers is trained. It has been shown that such Arrangement at high currents is susceptible to damage, since the contact fingers at a small distance parallel currents lead and therefore very strong by electromagnetic forces be pulled against each other. This can be to bending and Turn off the contact fingers lead. Also the friction forces between the contact pin and contact fingers can be very achieve high values, so that large driving forces needed are and strong abrasion at the switching pin and the Contact fingers occurs.
  • the invention is based on the object To provide burn-off switching arrangement in which the Switching pieces are not mechanically strong even at high currents overloaded and no excessive contact pressure arises.
  • the Abbrandschaltan extract shown in Fig. 1 is a Switching axis 1 formed approximately rotationally symmetrical. Along the switching axis 1 is a switching pin 2 with a Tip 3 made of burn-resistant material such.
  • a first contact piece comprises a wreath arranged around the switching axis 1, radially against the same directed contact elements, which as elongated contact fingers 4 are formed, which at their Ends wear burners 5 made of burn-resistant material.
  • the contact fingers 4 together form an approximately annular contact part, wherein the against the Switching axis 1 directed contact surfaces of Abbrandkmü. 5 one in the closed position on the outside of the Switch pin 2 present adjacent contact zone. from Abbrandkopf 5 apart, each contact finger 4 is in one piece with a bent by about 90 ° in the switch-on, so with the contact finger 4 a right angle including web 6 of harness philosophicaldem spring elastic Material produced and fixed to a housing part 7 anchored over which the bridge 6 with a first electric Connection is connected.
  • the switching pin 2 forms against it a second contact piece, the z. B. via a flexible Cable or a sliding tulip with a second electrical Connection is connected.
  • a support body. 8 fastened from electrically insulating material whose cylinder jacket-shaped outer side forms a support surface 9, at the webs 6 rest in the off position.
  • the initial deflection can because of the high elasticity of the webs 6 pretty much be chosen large, so that a large burn-up reserve for Available.
  • the support body 8 has a Open on which a surrounding the switching axis 1 nozzle 10 forms, in which in the closed position, the top of the third of the switching pin 2 protrudes.
  • the radially outwardly directed parts of the current paths in The contact fingers 4 practice a relatively low electromagnetic force on each other and also the Action of passing through the switching pin 2 Section of the rung to the same can be neglected become.
  • the subsequent parallel current paths through the Webs 6 attract each other, but is the radial Component of attraction because of the relatively large Distance to the switching axis 1 is not so great that Damage or excessive pressure of the contact fingers 4 against the switching pin 2, the excessive abrasion of the Abbrandkexcellent 5 and obstructions of the switching pin movement to could have a consequence, to be feared.
  • the distance R of the web 6 from the switching axis 1 and the Length L of the same can be set on the contrary so that the mutual attraction of the contact fingers 4 in the typically expected currents due to the elastic deflection of the contact fingers 4 of the same against the switching pin 2 exerted contact pressure desired way amplified and in particular the between these parts have effective contact lift forces approximately compensated.
  • Such compensation remains above all Fluctuations in the current received, since Contact lift forces and attractions in the same way depend on the same.
  • the further movement of the Wennstattens 2 will be the same from the wreath of Contact fingers 4 pulled and the burn-off heads 5 of the same move against the switching axis 1 until the webs 6 at the Support surface 9 abut. Further radial movement of Contact finger 4 against the switching axis 1 under the influence the mutual attraction of the current paths through the bridges 6 is thus prevented.
  • the Abbrandschaltan extract shown in FIG A second embodiment of the invention corresponds to what the first contact piece, completely the first Embodiment.
  • the second contact piece comprises in addition to the switching pin 2, a consumable contact arrangement, which in turn corresponds exactly to the first contact piece with Contact fingers 4 'with Abbrandgropfen 5', in the Closed position with its a second contact zone forming inner surfaces against the peripheral surface of the Press switch pin 2, wherein the contact fingers 4 'turn at webs 6 'angled about 90 ° and connect the same and a housing part 7 'with the second electrical connection are connected, so that the Contact finger 4 'at the same time the function of a sliding tulip perceive.
  • the webs 6 ' are in the off position in turn on a support surface 9 ', which from the outside a support body 8 'is formed, which at the same time a the switching axis 1 surrounding nozzle 10 'forms.
  • the consumable switching arrangement according to the in Fig. 3rd illustrated third embodiment of the invention otherwise corresponds otherwise completely to that according to the second Embodiment, but are the contact fingers 4, 4 'respectively Abbrandringe 12, 12 'assigned. They form parts of cup-shaped shields 13, 13 ', which, with the webs. 6 or 6 'electrically connected, in each case the others Surround parts of the contact pieces and completely shield.
  • the arc 11 commutates rapidly from the erosion heads 5 of the contact fingers 4 on the Abbrandring 12, while from the top 3 of the switch pin 2 in essentially on the Abbrandring 12 'commutated, which the Burning of the contact fingers 4, 4 'is reduced and thus their Lifespan increased.
  • the Abbrandschaltan extract shown in Fig. 4 according A fourth embodiment of the invention corresponds to FIG their basic structure of those after the first one Embodiment, but are the contact fingers 4, from which the first contact piece is aligned so that it with the switching axis 1 viewed in the switching direction an angle Include ⁇ of about 65 °.
  • the support body 8 forms in this case a truncated cone-shaped support surface 9, which lies at a distance below the contact fingers 4 and limits their mobility against the switching axis 1. The course of an elimination corresponds to that described in connection with the Abbrandschaltan extract according to the first embodiment of the invention.
  • the contact pieces 4 project only with at least theirs front ends burn-resistant tips 17 by corresponding openings in the panel 16 while same one stop for front shoulders of her make wider body 18.
  • the electrical contact with the Retaining ring 15 is made by contact blades 19.
  • the contact piece 4 By means of a pressing against his back Spring element, namely a coil spring 21, which on a the recess 14 final outer panel 20 of the Retainers 15 is supported, the contact piece 4 " each with a radially acting against the switching axis 1 Force applied.
  • the current paths are from the contact zone, d. H. the the switching pin 2 touching the front ends of the tips 17th the contact pieces 4 "out radially outwards, so that the electromagnetic forces that they make against each other exercise, no significant influence on the contact pressure have, with the contact pieces 4 "against the peripheral surface of the switch pin 2.
  • the required contact pressure is applied by the coil spring 21.
  • the Abbrandschaltan extract shown in Fig. 6 according to a sixth embodiment of the invention are largely as described above, but are the Recesses 14 formed continuously and the body 18th the contact pieces 4 "so long that they something about the Outside of the retaining ring 15 protrude.
  • a spring element is in each case a leaf spring 22 is provided, which against the Rear of the contact piece 4 "presses.
  • the Abbrandschaltan extract shown in Fig. 7 according to a seventh embodiment of the invention again the one described above, but are the Contact pieces 4 "of constant diameter and each guided in sliding guides 23, which in the Recesses 14 are attached. Also, the electric Contact with the retaining ring 15 here in each case via a flexible Band 24 made of highly conductive material, one of which End with the back of the contact piece 4 "electric conductively connected, in particular welded, while the other end with the retaining ring 15 electrically conductive connected is.
  • the first contact piece as rigid first switching ring 25 made of burn-resistant material formed, which is fixed in the housing and the same also electrically conductive with the first electrical Connection is connected.
  • the second contact piece comprises a switching pin 2, the, via a in Ausschaltetraum limited compressible cup spring package 26 supported, axially slidably mounted on a holder 27 which by a not shown switching drive along the Switching axis 1 can be moved, and a contact part, as a circular disk 28 of highly conductive elastic material, z.
  • B. CuBe or CuCrZr is trained.
  • the switching pin 2 has, compared to its tip to about the Distance between the first switching ring 25 and the second Switching ring 33 offset in Aus harshtraum, a circumferential Shoulder 34 on.
  • In the closed position is the top of the switching pin 2, from the compressed cup spring package 26th with a sufficient contact pressure applied to the Front of the first switching ring 25 all around, while the Shoulder 34 against a contact zone on the second switching ring 33rd presses and the sectors 32 of the same under elastic Deformation of the sectors 31 of the annular disc 28 axially in Switching direction slightly deflects, so that through the elastic restoring forces of the sectors 31 also here sufficient contact pressure is given.
  • the burnup circuit arrangement shown schematically in FIG. 9 according to a ninth embodiment of the invention is formed similar to the above-described.
  • the first contact piece as the inner Rand ago slotted first annular disc 35 highly conductive resilient material formed.
  • the Switch pin 2 is rigidly on a not shown by a shift drive along the shift axis 1 slidably Attached bracket and a sliding tulip 36 with the second electrical connection electrically conductively connected.
  • the elastic restoring force of the first annular disc 35, the inner edge 37 of burn-resistant material a in the switch-on axially in the switch-on easily forms a deflected contact zone, provides a sufficient Contact pressure safe.
  • the second contact piece comprises a the second electrical connection electrically conductive connected rigid second annular disc 38 burn-resistant material whose internal diameter only is slightly larger than the diameter of the Wegliches 2. It acts as Abbrandring, on the Turn off the one arc base point of the switch pin 2 skips.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Contacts (AREA)

Claims (20)

  1. Agencement de commutation à arc qui présente dans un boítier
       une première pièce de commutation qui est reliée à une première connexion électrique au moins dans la position de branchement et
       une deuxième pièce de commutation qui est reliée à une deuxième connexion électrique au moins dans la position de branchement et qui comprend une broche de commutation (2) qui, au moyen d'un entraínement de commutation, peut être inversée par rapport à la première pièce de commutation le long d'un axe de commutation (1) entre, d'une part, la position de branchement dans laquelle la première pièce de commutation touche la broche de commutation (2) de telle sorte que l'agencement de commutation à arc établit pour le courant un parcours entre la première connexion électrique et la deuxième connexion électrique et, d'autre part, une position de débranchement dans laquelle la broche de commutation (2) est éloignée de la première pièce de commutation,
       au moins un plot de contact qui fait partie d'une des pièces de contact et qui, dans la position de branchement, touche la broche de commutation (2) par une zone de contact qui entoure l'axe de commutation,
       caractérisé en ce que le plot de contact entoure l'axe de commutation (1) à la manière d'une couronne et, en partant d'un bord intérieur qui constitue la zone de contact, s'évase de manière à former un angle d'eau moins 45° avec l'axe de commutation (1).
  2. Agencement de commutation à arc selon la revendication 1, caractérisé en ce que l'angle entre l'axe de commutation (1) et le plot de contact est d'au moins 60°.
  3. Agencement de commutation à arc selon la revendication 2, caractérisé en ce que le plot de contact est orienté vers l'extérieur au moins de manière approximativement radiale par rapport à l'axe de commutation (1).
  4. Agencement de commutation à arc selon l'une des revendications 1 à 3, caractérisé en ce que dans la position de branchement, la zone de contact est déviée élastiquement sous l'action de la broche de commutation (2).
  5. Agencement de commutation à arc selon l'une des revendications 1 à 4, caractérisé en ce que le plot de contact est constitué de plusieurs éléments de contact au moins approximativement en ligne droite orientés vers l'axe de commutation (1).
  6. Agencement de commutation à arc selon la revendication 5, caractérisé en ce que chaque élément de contact est configuré comme doigt allongé de contact (4, 4').
  7. Agencement de commutation à arc selon l'une des revendications 4 à 6, caractérisé en ce que dans la position de branchement, la zone de contact s'étend essentiellement radialement et touche la surface périphérique de la broche de commutation (2).
  8. Agencement de commutation à arc selon les revendications 6 et 7, caractérisé en ce que chaque doigt de contact (4, 4') se raccorde en coude à une âme (6, 6') en matériau flexible et en particulier élastique et électriquement conducteur qui forme au moins une partie de la liaison électriquement conductrice entre le doigt de contact (4, 4') et la connexion électrique correspondante.
  9. Agencement de commutation à arc selon la revendication 8, caractérisé en ce que chaque âme (6, 6') est au moins approximativement parallèle à l'axe de commutation (1) et est ancrée fixement à son extrémité non orientée vers le doigt de contact (4, 4').
  10. Agencement de commutation à arc selon les revendications 6 et 7, caractérisé en ce que chaque doigt de contact (4) est au moins approximativement rectiligne, est constitué sur au moins une partie de sa longueur d'un matériau flexible et en particulier élastique et est ancré fixement à son extrémité non orientée vers l'axe de commutation (1).
  11. Agencement de commutation à arc selon la revendication 10, caractérisé en ce que chaque doigt de contact (4) est orienté obliquement vers l'axe de commutation (1).
  12. Agencement de commutation à arc selon l'une des revendications 8 à 11, caractérisé en ce que, dans la position de débranchement, l'âme (6) et les doigts de contact (4, 4') reposent sur une surface d'appui (9, 9') orientée vers l'extérieur.
  13. Agencement de commutation à arc selon la revendication 7, caractérisé en ce que chaque élément de contact est configuré comme plot de contact (4'') apte à coulisser radialement et monté dans une fixation qui entoure la broche de commutation (2) dans la position de branchement.
  14. Agencement de commutation à arc selon la revendication 13, caractérisé en ce que la fixation est configurée comme anneau de fixation (15) qui entoure l'axe de commutation (1) et qui présente des évidements (14) radiaux ouverts au moins vers l'axe de commutation (1) pour recevoir les plots de contact (4").
  15. Agencement de commutation à arc selon l'une des revendications 4 à 6, caractérisé en ce qu'en position de branchement, la zone de contact s'étend essentiellement axialement et touche la broche de commutation (2) sur une surface d'impact essentiellement orientée dans la direction de branchement.
  16. Agencement de commutation à arc selon la revendication 15, caractérisé en ce que les éléments de contact comprennent des secteurs (31) d'une plaque (28) en anneau circulaire réalisée en un matériau élastique, qui sont séparés par des fentes (30) et sur le bord intérieur desquels est agencée la zone de contact.
  17. Agencement de commutation à arc selon la revendication 16, caractérisé en ce que les fentes (30) s'étendent radialement.
  18. Agencement de commutation à arc selon les revendications 16 ou 17, caractérisé en ce que la plaque (28) en anneau circulaire comprend un anneau extérieur fermé (29).
  19. Agencement de commutation à arc selon l'une des revendications 15 à 18, caractérisé en ce que la surface de d'impact est formée par un épaulement périphérique (34) de la broche de commutation.
  20. Agencement de commutation à arc selon l'une des revendications 15 à 18, caractérisé en ce que la surface d'impact est formée par la pointe (3) de la broche de commutation (2).
EP99810170A 1998-04-14 1999-03-01 Agencement de contacts d' arc Expired - Lifetime EP0951038B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19816509 1998-04-14
DE19816509A DE19816509B4 (de) 1998-04-14 1998-04-14 Abbrandschaltanordnung

Publications (3)

Publication Number Publication Date
EP0951038A1 EP0951038A1 (fr) 1999-10-20
EP0951038B1 true EP0951038B1 (fr) 2005-10-05
EP0951038B2 EP0951038B2 (fr) 2011-12-14

Family

ID=7864486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99810170A Expired - Lifetime EP0951038B2 (fr) 1998-04-14 1999-03-01 Agencement de contacts d' arc

Country Status (5)

Country Link
US (1) US6100492A (fr)
EP (1) EP0951038B2 (fr)
JP (1) JP4255566B2 (fr)
CN (1) CN1132213C (fr)
DE (2) DE19816509B4 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1494252B1 (fr) * 2003-07-02 2007-09-19 ABB Technology AG Doigt de contact pour disjoncteur haute tension à lame
US8878092B2 (en) 2009-06-25 2014-11-04 Mitsubishi Electric Corporation Gas-insulated switchgear
US9012800B2 (en) 2010-02-04 2015-04-21 Mitsubishi Electric Corporation Gas circuit breaker
WO2013136516A1 (fr) 2012-03-16 2013-09-19 三菱電機株式会社 Coupe-circuit pour gaz
FR2997222B1 (fr) * 2012-10-19 2015-01-16 Alstom Technology Ltd Dispositif d'etablissement et/ou de coupure de courant a contacts permanents a usure reduite
EP2920801B1 (fr) * 2012-11-13 2016-09-07 ABB Schweiz AG Système de contact
DE102013106727B4 (de) * 2013-06-26 2015-08-06 Doduco Gmbh Kontaktstift für Hochspannungs-Leistungsschalter, Verfahren zu seiner Herstellung und Hochspannungs-Leistungsschalter mit einem solchen Kontaktstift
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
WO2019092861A1 (fr) * 2017-11-10 2019-05-16 株式会社 東芝 Disjoncteur à gaz
JP7155283B2 (ja) * 2018-10-26 2022-10-18 株式会社東芝 ガス遮断器

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FR691621A (fr) * 1929-03-09 1930-10-23 Elin Ag Fur Elek Sche Ind Interrupteur de courant de forte intensité, en particulier interrupteur à huile pour grande puissance de coupure
DE1923974U (de) † 1965-05-20 1965-09-23 Licentia Gmbh Druckkontakt fuer hochspannungs-leistungsschalter.
NL160974C (nl) * 1971-09-07 1979-12-17 Coq Bv Persgasschakelaar met samenwerkende buisvormige contactstukken.
DE2423103C2 (de) * 1974-05-13 1986-09-18 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer Druckgasleistungsschalter
JPS5718663Y2 (fr) * 1976-07-07 1982-04-19
US4152560A (en) * 1977-02-14 1979-05-01 Gould Inc. Stationary contact structure for high voltage gas blast circuit interrupter with deformed slotted contact finger configuration
CH645204A5 (de) * 1979-05-25 1984-09-14 Bbc Brown Boveri & Cie Elektrischer schalter fuer grosse stroeme.
CH649416A5 (de) * 1980-01-25 1985-05-15 Sprecher & Schuh Ag Druckgasschalter.
JPS6341723Y2 (fr) * 1980-04-25 1988-11-01
EP0067460B2 (fr) * 1981-06-12 1990-03-21 BBC Brown Boveri AG Disjoncteur de puissance pour haute tension
DE3440212A1 (de) * 1984-10-10 1986-04-17 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Druckgasschalter
FR2644624B1 (fr) * 1989-03-17 1996-03-22 Merlin Gerin Disjoncteur electrique a autoexpansion et a gaz isolant
JPH0324233U (fr) * 1989-07-20 1991-03-13
FR2691574A1 (fr) * 1992-05-21 1993-11-26 Nora Permelec France Sarl De Contact électrique pour circuit haute intensité.
DE4402935A1 (de) * 1994-02-01 1995-08-03 Abb Patent Gmbh Kontaktsystem für einen Hochspannungsleistungsschalter
US5495084A (en) * 1994-04-05 1996-02-27 Abb Power T&D Company Inc. Slip-through mounting structure for circuit interrupter
DE19613569A1 (de) * 1996-04-04 1997-10-09 Asea Brown Boveri Leistungsschalter
DE19613568A1 (de) * 1996-04-04 1997-10-09 Asea Brown Boveri Leistungsschalter
DE19648633A1 (de) * 1996-11-25 1998-05-28 Asea Brown Boveri Elektrisches Schaltgerät

Also Published As

Publication number Publication date
CN1232281A (zh) 1999-10-20
JPH11329176A (ja) 1999-11-30
EP0951038A1 (fr) 1999-10-20
JP4255566B2 (ja) 2009-04-15
DE59912612D1 (de) 2005-11-10
DE19816509B4 (de) 2006-08-10
CN1132213C (zh) 2003-12-24
US6100492A (en) 2000-08-08
EP0951038B2 (fr) 2011-12-14
DE19816509A1 (de) 1999-10-21

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