EP0120874B1 - Dispostif d'interruption de courant electrique - Google Patents

Dispostif d'interruption de courant electrique Download PDF

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Publication number
EP0120874B1
EP0120874B1 EP83902802A EP83902802A EP0120874B1 EP 0120874 B1 EP0120874 B1 EP 0120874B1 EP 83902802 A EP83902802 A EP 83902802A EP 83902802 A EP83902802 A EP 83902802A EP 0120874 B1 EP0120874 B1 EP 0120874B1
Authority
EP
European Patent Office
Prior art keywords
contact
contact set
auxiliary
main
switch device
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
EP83902802A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0120874A1 (fr
Inventor
Edouard Mancini
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.)
APPAREILLAGE GARDY SOCIETE ANONYME TE GENEVE, ZWIT
Original Assignee
APPAREILLAGE GARDY SA
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 APPAREILLAGE GARDY SA filed Critical APPAREILLAGE GARDY SA
Priority to AT83902802T priority Critical patent/ATE23235T1/de
Publication of EP0120874A1 publication Critical patent/EP0120874A1/fr
Application granted granted Critical
Publication of EP0120874B1 publication Critical patent/EP0120874B1/fr
Expired 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • 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

  • the present invention relates to an electrical current interrupting device comprising a main contact set and an auxiliary contact set, each comprising at least one movable contact element, the movable elements of the two contact sets being connected by a link mechanism and actuation.
  • the known devices do not meet the two requirements, either because the main contact is well protected from a false operation which can damage it, but on the other hand subjected to oxidation, sulfurization or other corrosion, or because it is protected from such an alteration but does not include any organ capable of protecting it from a possible false maneuver.
  • the device according to the invention overcomes this drawback and it is characterized, for this purpose, in that the auxiliary contact set comprises a contact closure range located between two opening ranges of the closure contacts and the opening of the contacts belonging to the main contact set taking place when the contacts belonging to the auxiliary contact set are in said closing range, the movable element of the auxiliary contact set being in an opening range in the engaged positions and triggered by the device, the main contact set being enclosed in a sealed enclosure at low pressure.
  • Fig. 1 schematically illustrates the device seen in perspective.
  • Fig. 2 is a graphic representation of the operation of the device illustrating the open 0 and closed 1 positions of the main contact set and of the auxiliary contact set as a function of the travel D respectively of the movable elements of these contact sets.
  • the interruption device illustrated in fig. 1 comprises a main contact set 1 and an auxiliary contact set 2.
  • the main contact set 1 at high nominal current is placed in a sealed enclosure 3 in a low pressure air medium of the order of 10, 6 torr (1.33x10 ' 3 Pa). It comprises a fixed contact element 4 and a movable contact element 5 capable of being moved axially by means of a bellows 6.
  • the set of auxiliary contacts 2 also comprises a fixed element constituted by a horn 7 and an element mobile contact formed by a cutting knife 8. The latter is integral with a control shaft 9 on which are rigidly fixed a cam 10 intended to act on the mobile contact element 6 and an actuating lever 11 connected to an insulating rod 12 for operating.
  • the main contact set and the auxiliary contact set are connected in parallel by two electrical lines 13 and 14.
  • the line 13 comprises two flexible portions 15 and 16 allowing the displacement of the movable contacts 5 and 8.
  • the horn 7 of the contact set auxiliary is double and has a closing area 17 located between two contact opening areas 18 and 19.
  • a plate 20 of insulating material is mounted between the line 14 and the area 19 ensuring complete isolation of the knife 8 when the device is triggered.
  • the operating rod 12 acts on the actuating lever 11 which makes the shaft 9 pivot around its axis, which will move the knife from the initial position a to the position b.
  • the cam 10 simultaneously performs a rotation in dead travel.
  • the knife 8 enters the closing range 17 of the horn 7 and establishes the galvanic contact between the elements 8 and 7.
  • the current then flows from line 13 to line 14 by the bypass line constituted by the flexible portion 16, the knife 8 and the horn 7.
  • the cam 10 begins to move the movable contact element 5 and definitively establishes in c the main contact set 1 while the knife 8 continues to run in the horn 7.
  • the opening function of the device is performed in a reverse sequence of operations.
  • the auxiliary contact set 2 with knife 8 and horn 7 establishes a controlled sequence of closing and opening of the device and allows the advantages, on the one hand, that the main contact set is switched in the absence of a cut in active loads and, on the other hand, that the latter has to bear any cuts on faults during a false switching operation.
  • the advantage of the sectioning knife is also evident in the fact that it makes it possible to ensure, from a distance, the position of the contacts of the device. As the auxiliary contact set is visible at all times, it is easy to detect the wear of the contact parts and their replacement.

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP83902802A 1982-09-30 1983-09-13 Dispostif d'interruption de courant electrique Expired EP0120874B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83902802T ATE23235T1 (de) 1982-09-30 1983-09-13 Elektrische stromunterbrechungsanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5743/82A CH649864A5 (fr) 1982-09-30 1982-09-30 Dispositif d'interruption de courant electrique.
CH5743/82 1982-09-30

Publications (2)

Publication Number Publication Date
EP0120874A1 EP0120874A1 (fr) 1984-10-10
EP0120874B1 true EP0120874B1 (fr) 1986-10-29

Family

ID=4298616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83902802A Expired EP0120874B1 (fr) 1982-09-30 1983-09-13 Dispostif d'interruption de courant electrique

Country Status (8)

Country Link
EP (1) EP0120874B1 (es)
CH (1) CH649864A5 (es)
DE (1) DE3367300D1 (es)
ES (1) ES283168Y (es)
IN (1) IN160175B (es)
IT (1) IT1168835B (es)
PT (1) PT77423B (es)
WO (1) WO1984001469A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005013231B3 (de) * 2005-03-18 2006-09-21 Siemens Ag Kurvenprofilschalter
FR2972290B1 (fr) * 2011-03-02 2013-04-19 Schneider Electric Ind Sas Dispositif de coupure de courant sur une ligne electrique a derivation et ampoule a vide
CN103489704B (zh) * 2013-09-25 2015-12-16 苏州朗格电气有限公司 一种真空断路器操作装置
FR3104807B1 (fr) * 2019-12-15 2021-11-19 Betoliere Jean Pierre Interrupteur/disjoncteur-sectionneur pour les réseaux de distribution électrique supérieurs à 3,6KV, à coupure et fermeture des courants dans une ampoule à vide et isolement sans SF6.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1540361A1 (es) * 1965-02-03 1970-01-02
US3671696A (en) * 1970-11-16 1972-06-20 Allis Chalmers Mfg Co Vacuum interrupter shunted with mechanical switch

Also Published As

Publication number Publication date
IT1168835B (it) 1987-05-20
IT8367946A0 (it) 1983-09-13
PT77423B (fr) 1986-02-13
ES283168Y (es) 1986-06-01
IN160175B (es) 1987-06-27
WO1984001469A1 (en) 1984-04-12
EP0120874A1 (fr) 1984-10-10
CH649864A5 (fr) 1985-06-14
ES283168U (es) 1985-11-16
DE3367300D1 (en) 1986-12-04
PT77423A (fr) 1983-11-01

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