EP0089309B1 - Sectionneur ou interrupteur de mise à la terre comprenant des couteaux de contact rotatifs - Google Patents

Sectionneur ou interrupteur de mise à la terre comprenant des couteaux de contact rotatifs Download PDF

Info

Publication number
EP0089309B1
EP0089309B1 EP83730004A EP83730004A EP0089309B1 EP 0089309 B1 EP0089309 B1 EP 0089309B1 EP 83730004 A EP83730004 A EP 83730004A EP 83730004 A EP83730004 A EP 83730004A EP 0089309 B1 EP0089309 B1 EP 0089309B1
Authority
EP
European Patent Office
Prior art keywords
switch
blade
knife
contact
closed
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
Application number
EP83730004A
Other languages
German (de)
English (en)
Other versions
EP0089309A3 (en
EP0089309A2 (fr
Inventor
Manfred Dipl.-Kfm. Meinherz
Jörg Tietze
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 EP0089309A2 publication Critical patent/EP0089309A2/fr
Publication of EP0089309A3 publication Critical patent/EP0089309A3/de
Application granted granted Critical
Publication of EP0089309B1 publication Critical patent/EP0089309B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • H01H31/003—Earthing switches
    • 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
    • H01H1/42—Knife-and-clip contacts
    • 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
    • H01H31/28—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 angularly-movable contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force

Definitions

  • the invention relates to an electrical disconnector or earthing switch, each consisting of switching knives movable around a pivot point and knife contacts with a central slot open on one side, the side walls of which form resilient current contacts, which in the closed state of the switch laterally on the perpendicular to the knife contact and in the switching knife engaging the slot.
  • Disconnectors constructed in this way are generally known and, for. B. in DE-A-23 12900 in Figs. 12 to 15.
  • the knife contact is approximately parallel to the switching knife, the pivot point about which the switching knife is moved lying above or below the range of the current contacts of the knife contact.
  • the rotation of the switching knife when the switch closes results in a movement of the upper end of the switching knife towards the knife contact, into which it enters the central slot from the front side until it, perpendicular to the knife contact, reaches the end position in the area of the current contacts.
  • the invention is therefore based on the object, in an electrical disconnector or earthing switch with a blade contact connection, to prevent the switching blade from being pressed out of the blade contact due to the possible current forces in the event of short circuits.
  • an electrical disconnector or earthing switch of the type described at the outset is designed in accordance with the invention in such a way that the switch blade in the open position of the disconnector or earthing switch is approximately opposite the blade contact and when the switch is closed from the closed side of the blade contact the slot is inserted and led to the area of the current contacts and that an insulating stop is arranged below the knife contact, against which the switching knife rests in the closed position.
  • the switch blade is therefore no longer in the open position of the disconnector or earthing switch on the side of the blade contact facing away from the pivot point, as is customary hitherto, but the blade contact and switch blade lie approximately opposite one another. H. they are at an angle to each other or above or below or next to each other. This results in a reversal of the direction of rotation of the switching knife in relation to the position of the fixed knife contact for the switching movement, and it is achieved that the switching knife moves from the closed side of the knife contact into its central slot.
  • the stop made of insulating material still supports the knife contact so that it cannot bend.
  • FIGS. 1 and 2 of the drawing An embodiment of the invention is shown schematically in FIGS. 1 and 2 of the drawing.
  • Fig. 1 shows the closed position of the circuit breaker seen from the side
  • Fig. 2 shows a top view of the knife contact.
  • the fixed blade contact 1 of an electrical isolating switch has a central slot 2 which is open on the end face 4 of the blade contact 1 opposite the attachment to the switch housing 3.
  • the switching knife 6 is movable about the pivot point 7 and is in the open position of the disconnector in the position indicated by dash-dotted lines in FIG. 1 parallel above the knife contact 1.
  • the switch blade 6 moves in the direction of rotation indicated by the arrow 8 towards the blade contact 1, in the slot 2 of which it enters from the closed side 9.
  • the entry direction of the switching knife 6, which runs from behind, is indicated in FIG. 2 by the arrow 10.
  • the switch blade 6 In its end position, the switch blade 6 is perpendicular to the blade contact 1 when the disconnector is closed and bears against a stop 11 made of insulating material which is arranged below the blade contact 1.
  • This stop 11 made of insulating material which does not hinder the switching movement of the switching knife 6, supports the knife contact 1, so that it does not bend and also prevents the forces indicated in FIG. 1 by the arrows 12, which are exerted by the current loop, particularly in the event of a short circuit, the frictional forces of the current contacts 5 can exceed, the switch blade 6 can unscrew from the blade contact 1.

Landscapes

  • Contacts (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Claims (1)

  1. - Sectionneur ou interrupteur électrique de mise à la terre comportant des couteaux (6) dont chacun est mobile autour d'un point de rotation et des contacts à couteaux (1) pourvus d'une fente médiane (2) à ouverture sur un côté et dont les parois latérales constituent des contacts électriques élastiques (5) et portent, à l'état fermé du sectionneur ou de l'interrupteur, latéralement contre le couteau mobile (6) qui est perpendiculaire aux contacts à couteaux (1) et qui pénètre dans la fente (2), caractérisé par le fait que dans la position ouverte du sectionneur ou de l'interrupteur, le couteau mobile (6) se situe à peu près en face du contact à couteau (1) et est introduit, lors. de la fermeture du sectionneur ou de l'interrupteur, à partir du côté fermé (9) du contact à couteau (1), dans la fente (2) et est déplacé vers la zone des contacts électriques (5), et qu'une butée isolante (11) est disposée sous le contact à couteau (1), butée contre laquelle porte le couteau mobile (6) dans la position de fermeture.
EP83730004A 1982-02-08 1983-01-10 Sectionneur ou interrupteur de mise à la terre comprenant des couteaux de contact rotatifs Expired EP0089309B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823204438 DE3204438A1 (de) 1982-02-08 1982-02-08 Elektrischer trenn- oder erdungsschalter, bestehend aus jeweils um einen drehpunkt beweglichen schaltmessern und messerkontakten
DE3204438 1982-02-08

Publications (3)

Publication Number Publication Date
EP0089309A2 EP0089309A2 (fr) 1983-09-21
EP0089309A3 EP0089309A3 (en) 1984-07-18
EP0089309B1 true EP0089309B1 (fr) 1986-04-16

Family

ID=6155186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83730004A Expired EP0089309B1 (fr) 1982-02-08 1983-01-10 Sectionneur ou interrupteur de mise à la terre comprenant des couteaux de contact rotatifs

Country Status (3)

Country Link
US (1) US4490595A (fr)
EP (1) EP0089309B1 (fr)
DE (2) DE3204438A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744196A (en) * 1987-01-02 1988-05-17 Gallo Michael S Device for interlocking tongue-and-groove type bag
DE3742609A1 (de) * 1987-12-16 1989-06-29 Asea Brown Boveri Kontaktsystem fuer einen hochspannungsschalter
NL1010515C2 (nl) * 1998-11-09 2000-05-10 Elin Holec High Voltage Bv Hoogspanningscheider.
FR2809873B1 (fr) * 2000-06-06 2002-12-13 Entrelec Sa Dispositif de contact electrique sectionnable
FR2867603B1 (fr) * 2004-03-10 2006-06-02 Areva T & D Spa Sectionneur de terre pivotant a insertion directe et a mouvement simple

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1031031A (en) * 1909-11-30 1912-07-02 Oakley S Walker Electrical switch.
US2544788A (en) * 1948-09-08 1951-03-13 Earl L Hindman Multiple contact selector switch
US3127491A (en) * 1960-01-11 1964-03-31 Mc Graw Edison Co High voltage air switch
US3410974A (en) * 1967-01-30 1968-11-12 Kelek Company Pressure switch mechanism
SE351515B (fr) * 1971-04-21 1972-11-27 B Wennersten
FR2175619B1 (fr) * 1972-03-16 1977-09-02 Acetp
US4342889A (en) * 1974-05-24 1982-08-03 G & W Electric Specialty Company Modular vault-type load break switch
DE2502162C3 (de) * 1975-01-21 1981-10-22 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen Draufschalter, insbesondere Erdungsschalter

Also Published As

Publication number Publication date
DE3204438A1 (de) 1983-08-18
US4490595A (en) 1984-12-25
DE3362973D1 (en) 1986-05-22
EP0089309A3 (en) 1984-07-18
EP0089309A2 (fr) 1983-09-21

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