EP0593498B1 - Interrupteur-separateur ayant une fiche principale de commutation et une fiche auxiliaire de contact - Google Patents

Interrupteur-separateur ayant une fiche principale de commutation et une fiche auxiliaire de contact Download PDF

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Publication number
EP0593498B1
EP0593498B1 EP92910044A EP92910044A EP0593498B1 EP 0593498 B1 EP0593498 B1 EP 0593498B1 EP 92910044 A EP92910044 A EP 92910044A EP 92910044 A EP92910044 A EP 92910044A EP 0593498 B1 EP0593498 B1 EP 0593498B1
Authority
EP
European Patent Office
Prior art keywords
contact
pin
auxiliary
contact pin
main
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
EP92910044A
Other languages
German (de)
English (en)
Other versions
EP0593498A1 (fr
Inventor
Dieter Lorenz
Detlef Purbst
Dirk Makareinis
Frank Eberl
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0593498A1 publication Critical patent/EP0593498A1/fr
Application granted granted Critical
Publication of EP0593498B1 publication Critical patent/EP0593498B1/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
    • H01H33/121—Load break switches
    • H01H33/122—Load break switches both breaker and sectionaliser being enclosed, e.g. in SF6-filled container
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact

Definitions

  • the invention relates to a disconnector with an axially drivable main switching pin and a counter contact opposite this with a counter contact piece and an axially movable, spring-loaded auxiliary contact pin that contacts the main switching pin in time before the counter contact piece.
  • Such a circuit breaker is known for example from DE-A-39 38 711.
  • a main switching pin moves into a mating contact during the switching-on process and makes contact there first with an auxiliary contact pin and then with a mating contact piece in the form of a sliding contact.
  • the auxiliary contact pin forms a preliminary contact to which an arc can be drawn without the contact surfaces of the main switching pin carrying the nominal current being melted or damaged in any other way. If the currents to be transmitted through the auxiliary contact pin are low, it is sufficient to contact the latter via a spring which presses it axially against the main switching pin.
  • the invention is therefore based on the object of designing a disconnector of the type mentioned in such a way that commutation of the current onto the main current path takes place without damage to the rated current contacts even when the high currents occurring when the busbar is changed with low driving voltages.
  • auxiliary sliding contact which is conductively connected to the counter contact piece and contacts the auxiliary contact pin in the switched-off position and at the beginning of the switch-on movement of the main contact pin, from which the auxiliary contact pin runs off after the main contact pin has come into contact with the counter contact piece.
  • the auxiliary sliding contact ensures a reliable conductive connection between the auxiliary contact pin and the mating contact piece that is also capable of withstanding high currents.
  • the fact that the auxiliary contact pin runs from the auxiliary sliding contact after the main contact pin has come into contact with the mating contact piece ensures that the current is only conducted via a single, defined path when the disconnector is switched on.
  • An advantageous embodiment of the invention provides that the main switching pin and the auxiliary contact pin each consist at least partially of erosion-resistant material on the contacting end faces.
  • This design of the end faces of the contact pins permanently prevents damage to the pre-contact surfaces from an arc that occurs before contact is made.
  • main switching pin 1 has already moved so far to the counter contact 2 that it touches the auxiliary contact pin 3 on the front side.
  • Main switching pin 1 and auxiliary contact pin 3 are each provided with an erosion-resistant insert 4, 5 in order to avoid damage to their end faces by arcs igniting before contact.
  • the counter contact 2 is shielded by a field electrode 6. Behind the field electrode 6 is a counter contact piece 7, which carries the rated current.
  • the auxiliary contact pin 3 is axially movable through an insulating rod 8 and loaded by a spring 9 in the axial direction.
  • the spring 9 is insulated from the rest of the construction by an insulating washer 10.
  • the auxiliary contact pin 3 is only about contacted the auxiliary sliding contact 11 on its outer surface.
  • the auxiliary contact pin 3 is in engagement with the auxiliary sliding contact 11 at least until the contact between the mating contact piece 7 and the main switching pin 1 is established.
  • the mating contact piece 7 is arranged so that it slides on the outer surface of the main switching pin 1.
  • the auxiliary contact pin 3 has a smaller diameter than the main switching pin 1, so that the auxiliary contact pin 3 does not touch the mating contact piece 7.

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Keying Circuit Devices (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Contacts (AREA)

Claims (2)

  1. Interrupteur-séparateur comportant une broche (1) principale d'ouverture-fermeture pouvant être entraînée dans la direction axiale, et un contact antagoniste (7) en face de cette broche, qui comprend une pièce (7) de contact antagoniste et une broche (3) de contact auxiliaire mobile axialement, soumise à l'action d'un ressort et venant en contact avec la broche principale d'ouverture-fermeture avant que la pièce de contact antagoniste ne le fasse, caractérisé par un contact (11) glissant auxiliaire, qui est relié de façon conductrice à la pièce (7) de contact antagoniste, qui vient en contact avec la broche (3) de contact auxiliaire dans la position d'ouverture et au début du mouvement de fermeture de la broche (1) princiaple d'ouverture-fermeture et dont se sépare la broche (3) de contact auxiliaire après entrée en contact de la broche (1) principale d'ouverture-fermeture avec la pièce (7) de contact antagoniste.
  2. Interrupteur-séparateur suivant la revendication 1, caractérisé en ce que la broche (1) principale d'ouverture-fermeture et la broche (3) de contact auxilaire sont chacune sur les côtés frontaux en contact l'un avec l'autre, au moins en partie en un matériau résistant à l'usure.
EP92910044A 1991-07-09 1992-05-12 Interrupteur-separateur ayant une fiche principale de commutation et une fiche auxiliaire de contact Expired - Lifetime EP0593498B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9108589U DE9108589U1 (de) 1991-07-09 1991-07-09 Trennschalter mit einem Hauptschaltstift und einem Hilfskontaktstift
DE9108589U 1991-07-09
PCT/DE1992/000393 WO1993001604A1 (fr) 1991-07-09 1992-05-12 Interrupteur-separateur ayant une fiche principale de commutation et une fiche auxiliaire de contact

Publications (2)

Publication Number Publication Date
EP0593498A1 EP0593498A1 (fr) 1994-04-27
EP0593498B1 true EP0593498B1 (fr) 1995-08-02

Family

ID=6869210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92910044A Expired - Lifetime EP0593498B1 (fr) 1991-07-09 1992-05-12 Interrupteur-separateur ayant une fiche principale de commutation et une fiche auxiliaire de contact

Country Status (7)

Country Link
EP (1) EP0593498B1 (fr)
JP (1) JPH06508714A (fr)
AT (1) ATE125976T1 (fr)
CA (1) CA2113097A1 (fr)
DE (2) DE9108589U1 (fr)
ES (1) ES2075699T3 (fr)
WO (1) WO1993001604A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540777A1 (de) * 1995-11-02 1997-05-07 Asea Brown Boveri Elektrisches Schaltgerät
JP3587423B2 (ja) * 1997-05-09 2004-11-10 株式会社東芝 主回路断路器
DE102010062343A1 (de) * 2010-12-02 2012-06-06 Siemens Aktiengesellschaft Elektrokontaktanordnung
JP5629589B2 (ja) * 2011-01-19 2014-11-19 株式会社東芝 開閉器
DE102013205945A1 (de) * 2013-04-04 2014-10-09 Siemens Aktiengesellschaft Trennschalteinrichtung
EP3070727B1 (fr) * 2015-03-20 2017-09-20 Siemens Aktiengesellschaft Dispositif sectionneur de déconnexion ou connexion électrique haute-tension

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3938711A1 (de) * 1989-11-17 1991-05-23 Siemens Ag Trennschalter fuer metallgekapselte, druckgasisolierte hochspannungsschaltanlagen

Also Published As

Publication number Publication date
ES2075699T3 (es) 1995-10-01
WO1993001604A1 (fr) 1993-01-21
JPH06508714A (ja) 1994-09-29
EP0593498A1 (fr) 1994-04-27
CA2113097A1 (fr) 1993-01-21
ATE125976T1 (de) 1995-08-15
DE9108589U1 (de) 1991-09-05
DE59203127D1 (de) 1995-09-07

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