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EP0988638A1 - Circuit de commutation de combustion nucleaire - Google Patents

Circuit de commutation de combustion nucleaire

Info

Publication number
EP0988638A1
EP0988638A1 EP99911560A EP99911560A EP0988638A1 EP 0988638 A1 EP0988638 A1 EP 0988638A1 EP 99911560 A EP99911560 A EP 99911560A EP 99911560 A EP99911560 A EP 99911560A EP 0988638 A1 EP0988638 A1 EP 0988638A1
Authority
EP
European Patent Office
Prior art keywords
contact
contact fingers
switching
burn
ribbons
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
EP99911560A
Other languages
German (de)
English (en)
Other versions
EP0988638B1 (fr
Inventor
Lukas Zehnder
Ion Gavrilita
Markus Keller
Jörg Peter
Thomas 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
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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, ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Schweiz AG
Publication of EP0988638A1 publication Critical patent/EP0988638A1/fr
Application granted granted Critical
Publication of EP0988638B1 publication Critical patent/EP0988638B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Definitions

  • Burn-up switching arrangement with a first contact piece, which is connected at least in a switch-on position to a first electrical connection and which comprises a contact tulip with a plurality of contact fingers (2), and with a second switch piece, which is connected to a second electrical connection at least in the switch-on position, and which comprises a switching pin (3) which, along a switching axis (1) relative to the first contact piece between the switch-on position, in which the contact fingers (2) of the contact tulip touch the switching pin (3) on its outside, so that the erosion switching arrangement forms a current path between the closes the first connection and the second connection and a switch-off position, in which the switching pin (3) is spaced from the first contact piece, can be changed, characterized in that the contact fingers (2) of the contact tulip via a flexible supply line, which change the angle between the Contact fi ngern (2) and the switching axis (1) allowed to be connected to the first electrical connection.
  • Burn-up switching arrangement characterized in that the flexible feed line is made of flexible, electrically conductive material by means of a plurality of bands (6).
  • each band (6) connects directly to a contact finger (2).
  • each band (6) consists of several superimposed strips of the flexible electrically conductive material.
  • the flexible electrically conductive material is copper or an alloy containing copper.
  • Burn-up switching arrangement according to one of claims 2 to 5, characterized in that the strips of a
  • Burn-up switching arrangement according to one of claims 1 to 6, characterized in that the contact fingers (2) are essentially straight and each form a positive angle with the switching axis (1).
  • Burn-up switching arrangement characterized in that the angle between a contact finger (2) and the switching axis (1) in
  • Switch-on direction is between 15 ° and 45 °.
  • Burn-up switching arrangement according to one of claims 1 to 8, characterized in that it has at least one outwardly facing support surface (10) for supporting at least part of the flexible feed line. 10. Burn-up switching arrangement according to claim 9, characterized in that the at least one support surface (10) is formed by the circumferential outside of a support body (9).
  • Burn-up switching arrangement characterized in that the support body (9) consists of electrically insulating material at least in the region of the at least one support surface (10).
  • Burn-up switching arrangement according to one of claims 1 to 11, characterized in that the contact fingers (2) surround the switching axis (1) uniformly.
  • Burn-up switching arrangement according to one of claims 1 to 12, characterized in that it has at least one pressure element which, in the switched-on position, subjects the contact fingers (2) to a contact pressure directed against the switching pin (3).
  • the invention relates to an erosion switching arrangement, in particular for circuit breakers, as are used in power plants, substations and other devices for the supply of electrical energy for switching operating and overcurrents on and off.
  • the invention is based on the object of specifying an erosion switching arrangement which has an erosion reserve which is not limited by the material properties of the contact fingers.
  • Fig. 1 ' shows schematically an axial longitudinal section through an erosion switching arrangement according to the invention, left in the switch-on, right in the
  • a contact tulip connected to a first electrical connection, which is made up of a plurality of contact fingers 2 arranged around a switching axis 1 and including an angle of approximately 30 ° with it, which is entirely or at least in the Area of the erosion heads made of erosion-resistant material such as B. W / Cu, graphite, CFC, graphite / Cu, CFC / Cu exist.
  • a solid switching pin 3 is provided as the second switching element, which has a tip 4, which is also made of a fire-resistant material. He is, e.g. B. via a sliding bell or a flexible line, connected to a second electrical connection and by means of a (not shown) switching drive along the switching axis 1 between a switch-on position in which it 3
  • each contact finger 2 connects to the same, which connects it electrically conductively to a housing part 5 and further to the first electrical connection. It is formed by a band 6, which consists of several superimposed strips of flexible electrically conductive material, for. B. consists of copper or a copper-containing alloy.
  • the strips 6 are each stiffened by pressure welding the strips. Otherwise, the strips are not firmly connected to one another, so that the band 6 is flexible from the outer end of the connecting section 7.
  • a leaf spring 8 elastically presses against the connecting section 7 from the outside, so that the contact finger 2 is pressed against the switching pin 3 in the switched-on position.
  • a support body 9 made of electrically insulating material forms a truncated cone-shaped outwardly facing support surface 10, on which in the switched-off position under the action of the leaf springs 8 to a small extent the contact fingers 2 and to a considerable extent over the
  • Connecting section 7 outgoing part of the tapes 6 rest with their inner sides. In addition, it forms a central nozzle 11 which widens in the switch-on direction and into which the switch pin 3 projects in the switch-on position. 4
  • Switching pin 3 is lifted off the support surface 10, but usually also a part of the flexible area of the band 6 adjoining the connecting section 7. If the current commutates after the start of a switch-off from a nominal current switching arrangement (not shown) to the burn-up switching arrangement, then those which are usually to be expected The lifting forces between the switching pin 3 and the contact fingers 2 are approximately compensated for by the mutual attraction of the contact fingers 2, which are caused by the axial components of the partial currents flowing through them.
  • Section does not abut the support surface 10, so that the burn-up reserve, as can be seen directly from the right-hand side of FIG. 1, is very large.
  • the angle of the support surface and thus also the upper limit of the angle of the contact with the switching axis can be selected differently. It is preferably between 15 ° and 45 °, the switching axis taken in the switch-on direction.
  • the switching pieces can also be supplemented by other components, for. B. can be provided in each case a burn-up, which is arranged upstream of the contact tulip or in the switch-off position of the switching pin, or such a burn-off can also be arranged on only one side.

Landscapes

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

Abstract

Afin de créer une importante réserve de combustion nucléaire, des doigts de contact (2) sont reliés à une première connexion électrique par des bandes flexibles (6) composées de bandes superposées, par exemple, en cuivre. La section de raccordement (7) de la bande (6), adjacente aux doigts de contact (2) et reliée à ces derniers de façon rigide, est respectivement renforcée par le soudage à la presse des bandes. En mode Arrêt, les bandes (6) et, en partie, les doigts de contact (2) sont plaqués contre une surface d'appui (10) orientée vers l'extérieur. En mode Marche, au moins les doigts de contact (2) et les sections de raccordement (7) sont soulevés par contact avec le côté extérieur d'un contact mobile (3) qui se déplace le long d'un axe de commutation (1), ce qui entraîne la flexion des bandes (6) à partir de la surface d'appui (10). La pression provoquée par l'attraction électromagnétique entre les doigts de contact (2) relativement courts et les sections de raccordement (7) qui forment respectivement avec l'axe de commutation (1) un angle d'environ 30 DEG , compense approximativement les forces de soulèvement de contact tandis que les forces agissant sur les parties flexibles des bandes (6) sont sensiblement absorbées par la surface d'appui (10).
EP99911560A 1998-04-14 1999-04-12 Ensemble de contacts d'arc Expired - Lifetime EP0988638B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19816508A DE19816508A1 (de) 1998-04-14 1998-04-14 Abbrandschaltanordnung
DE19816508 1998-04-14
PCT/CH1999/000146 WO1999053512A1 (fr) 1998-04-14 1999-04-12 Circuit de commutation de combustion nucleaire

Publications (2)

Publication Number Publication Date
EP0988638A1 true EP0988638A1 (fr) 2000-03-29
EP0988638B1 EP0988638B1 (fr) 2005-11-16

Family

ID=7864485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99911560A Expired - Lifetime EP0988638B1 (fr) 1998-04-14 1999-04-12 Ensemble de contacts d'arc

Country Status (6)

Country Link
US (1) US6259050B1 (fr)
EP (1) EP0988638B1 (fr)
JP (1) JP3967387B2 (fr)
CN (1) CN1136595C (fr)
DE (2) DE19816508A1 (fr)
WO (1) WO1999053512A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE373868T1 (de) 2003-07-02 2007-10-15 Abb Technology Ag Kontaktfinger für hochleistungsschalter
DE102005012930A1 (de) 2005-03-15 2006-09-21 Siemens Ag Elektrische Kontaktanordnung mit einem ersten und einem zweiten Kontaktstück
DE102005019424A1 (de) * 2005-04-25 2006-11-02 Abb Technology Ag Lasttrennschalter
WO2011096097A1 (fr) 2010-02-04 2011-08-11 三菱電機株式会社 Disjoncteur à gaz
JP5455775B2 (ja) * 2010-05-11 2014-03-26 三菱電機株式会社 遮断器
CN104995707B (zh) * 2012-11-13 2017-12-08 Abb 技术有限公司 触点系统
US10002733B2 (en) * 2016-03-02 2018-06-19 General Electric Technology Gmbh Internal tulip sleeve of the female arcing contact of a high voltage electric circuit breaker
EP3404679B1 (fr) * 2017-05-18 2021-12-01 General Electric Technology GmbH Contact électrique de type tulipe comprenant un élément de pression sur les doigts conducteurs au repos
WO2021138366A1 (fr) * 2019-12-31 2021-07-08 Southern States Llc Commutateur de puissance électrique haute tension avec électrodes d'arc de carbone et gaz diélectrique de dioxyde de carbone

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE246412C (fr)
US1601314A (en) * 1917-12-08 1926-09-28 Westinghouse Electric & Mfg Co Circuit interrupter
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
DE893830C (de) 1944-01-15 1953-10-19 Siemens Ag Insbesondere leistungslos zu betaetigendes Schaltgeraet fuer hohe Stromstaerken, z. B. fuer Starkstromsteuerungen elektrisch angetriebener Fahrzeuge
DE1955490U (de) * 1966-12-16 1967-02-16 Continental Elektro Ind Ag Elektrischer last- bzw. leistungsschalter.
JPS5545998B1 (fr) 1968-11-12 1980-11-20
US4205209A (en) * 1979-02-07 1980-05-27 Societe Anonyme Dite: Delle-Alsthom Articulated contact finger
DD246412A1 (de) * 1986-01-10 1987-06-03 Liebknecht Transformat Starkstromkontakt fuer elektrische schalter
DE3736835A1 (de) * 1987-10-30 1989-05-11 Bbc Brown Boveri & Cie Hochspannungsschalter
JPH02299114A (ja) * 1989-05-15 1990-12-11 Toshiba Corp パッファ形ガス遮断器
JPH07114088B2 (ja) 1990-11-26 1995-12-06 三菱電機株式会社 摺動固定接触子
FR2691574A1 (fr) 1992-05-21 1993-11-26 Nora Permelec France Sarl De Contact électrique pour circuit haute intensité.
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
DE19816507A1 (de) * 1998-04-14 1999-10-21 Asea Brown Boveri Abbrandschaltanordnung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9953512A1 *

Also Published As

Publication number Publication date
JP3967387B2 (ja) 2007-08-29
JP2002505797A (ja) 2002-02-19
WO1999053512A1 (fr) 1999-10-21
CN1136595C (zh) 2004-01-28
DE19816508A1 (de) 1999-10-21
US6259050B1 (en) 2001-07-10
EP0988638B1 (fr) 2005-11-16
CN1263633A (zh) 2000-08-16
DE59912794D1 (de) 2005-12-22

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