WO2000054297A1 - Disjoncteur multipole - Google Patents

Disjoncteur multipole Download PDF

Info

Publication number
WO2000054297A1
WO2000054297A1 PCT/EP2000/001778 EP0001778W WO0054297A1 WO 2000054297 A1 WO2000054297 A1 WO 2000054297A1 EP 0001778 W EP0001778 W EP 0001778W WO 0054297 A1 WO0054297 A1 WO 0054297A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit breaker
sealing washer
switching
pole circuit
breaker according
Prior art date
Application number
PCT/EP2000/001778
Other languages
German (de)
English (en)
Inventor
Franz Böder
Guido Dedenbach
Original Assignee
Moeller Gmbh
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 Moeller Gmbh filed Critical Moeller Gmbh
Priority to EP00909285A priority Critical patent/EP1076909B1/fr
Priority to DE50015117T priority patent/DE50015117D1/de
Publication of WO2000054297A1 publication Critical patent/WO2000054297A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0072—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 particular to three-phase switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms

Definitions

  • the invention relates to a multi-pole circuit breaker with a housing in which a number of switching chambers corresponding to the number of poles are arranged side by side, each of which is separated from one another by partition walls made of an electrically insulating material, and with a switching shaft common to all poles for actuating movable ones in the Switching chambers arranged contact arrangements.
  • a multipole circuit breaker is known from EP 0 542 636 B1, in which sealing disks made of an elastic material are arranged in the intermediate walls between the switching chambers, through which the switching shaft is passed. If there is a pressure difference between adjacent switching chambers, the sealing washers are pressed against a corresponding wall area of an intermediate wall and thereby prevent one Pressure equalization in this area.
  • a disadvantage of this known circuit breaker is, inter alia, that the respective sealing washer is also displaced on the surface of the selector shaft when there is a pressure difference and pressure equalization cannot be completely prevented by forming gap-shaped openings in this area. Since the sealing washers usually rest against the side walls, they also frequently generate undesirable frictional forces during normal operation of the switch.
  • the invention has for its object to provide a multi-pole circuit breaker which has a better gas seal between the individual switching chambers in the area of the switching shaft compared to known multi-pole switches.
  • the invention is essentially based on the idea that the sealing washer either e.g. is attached to the selector shaft in a gas-tight manner by gluing, vulcanizing, clamping or the like, or that it is slidably arranged within an annular groove on the selector shaft, in such a way that it seals against one of the side walls of the annular groove in the event of a pressure difference between adjacent selector chambers .
  • FIG. 1 shows the longitudinal section through a portion of a circuit breaker according to the invention with a switching shaft guided through two switching chambers and a sealing washer for gas sealing the two switching chambers in their normal position
  • FIG. 2 shows an enlarged illustration of the sealing disk shown in FIG. 1 when a pressure difference occurs between the two switching chambers
  • FIG. 3 a further exemplary embodiment of a sealing disk which is arranged on the switching shaft of a circuit breaker and is in its normal position
  • FIG. 4 a representation corresponding to FIG. 3, in which a pressure difference between adjacent switching chambers acts on the sealing disk
  • Figure 5 an embodiment of the invention, in which the sealing washer and the control shaft are connected to each other via a clamp connection.
  • FIG. 1 denotes a multi-pole circuit breaker (without switch lock), which comprises a two-part housing 2 with a number of switching chambers corresponding to the number of poles, of which only two switching chambers 3, 4 are shown schematically.
  • the switching chambers 3, 4 are separated from one another by partitions 5, which are made of an electrically insulating the material exist.
  • partitions 5, which are made of an electrically insulating the material exist.
  • movable contact arrangements 6, 7 which are in operative connection with fixed contacts which are not shown for reasons of clarity.
  • the movable contact arrangements (for example pivotable contact bridges) 6, 7 are connected to one another via a switching shaft 8.
  • a sealing disk 9 Arranged in the area of the respective intermediate wall 5 is a sealing disk 9 made of an elastic material, which is connected to the switching shaft 8 in a gas-tight manner, for example by applying a vulcanization layer 10, and which seals the opening 11 in the area of the switching shaft 8 of the intermediate wall 5.
  • a groove-shaped recess 12 is provided in the intermediate wall 5, into which the outer edge region 14 of the sealing disk 9 engages.
  • the outer edge region 14 is arranged in the groove-shaped recess 12 such that it does not touch the wall regions 15, 16 of the groove-shaped recess 12 in the normal position of the sealing disk 9 shown in FIG.
  • FIG. 3 and 4 show a further embodiment of the invention.
  • the sealing disk, designated 18, is slidably mounted in an annular groove 19 of a control shaft 20.
  • the normal position of the sealing disk 18 corresponding to FIG. 1 is shown in FIG.
  • the position of the sealing disk 18 which results when there is a pressure difference between adjacent switching chambers 3, 4 (FIG. 1) is shown in FIG.
  • the sealing disk 18 presses both in the area of its outer edge 21 against the corresponding wall area 15 of the groove-shaped recess 12 of the intermediate wall 5 and also with its inner edge area 22 facing the selector shaft 20 against the corresponding wall area 23 of the annular groove 19.
  • the width 24 of the annular groove 19 is less than or equal to the width 25 of the ten-shaped recess 12 is selected in the intermediate wall 5.
  • Polyamide (PA) or polyethylene terephthalate (PET) has proven particularly useful as a material for the sealing washer.
  • the wall thickness of the sealing washer should be between 0.1 and 0.5 mm.
  • the sealing disk denoted by 26 and the selector shaft are connected to one another via a clamp connection.
  • the selector shaft is composed of individual selector shaft segments 27, 28 which are connected to one another via a screw connection 29 and between which the sealing disk 26 is clamped in a gastight manner.
  • sealing disk can be attached to the selector shaft instead of vulcanization or a clamp connection using another method (e.g. an adhesive connection).
  • Width (groove-shaped recess)

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

L'invention concerne un disjoncteur multipole comprenant un boîtier (2) qui abrite plusieurs chambres de commutation (3, 4) juxtaposées. Le nombre de chambres de commutation (3, 4) correspond à celui des poles. Ces chambres sont respectivement séparées par des cloisons (5) en matériau électriquement isolant. Ce disjoncteur comprend également un arbre d'entraînement (8) qui est commun à tous les poles et qui est destiné à actionner les dispositifs de contact (6, 7) disposés mobiles dans les chambres de commutation (3, 4). Pour que le disjoncteur (1) présente une meilleure étanchéité au gaz entre les différentes chambres de commutation (3, 4) dans la zone de l'arbre d'entraînement (8) par rapport aux disjoncteurs multipoles connus en soi, on place un disque d'étanchéité (9) entre les chambres de commutation (3, 4), ce disque étant fixé à l'arbre d'entraînement (8) de façon étanche au gaz ou bien placé mobile en longueur dans une rainure annulaire aménagée dans l'arbre d'entraînement, de telle façon que le disque d'étanchéité (9) soit hermétiquement en contact avec la zone paroi correspondante entre les chambres de commutation (3, 4) adjacentes s'il y a une différence de pression.
PCT/EP2000/001778 1999-03-08 2000-03-02 Disjoncteur multipole WO2000054297A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00909285A EP1076909B1 (fr) 1999-03-08 2000-03-02 Disjoncteur multipole
DE50015117T DE50015117D1 (de) 1999-03-08 2000-03-02 Mehrpoliger leistungsschalter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999110033 DE19910033C1 (de) 1999-03-08 1999-03-08 Mehrpoliger Leistungsschalter
DE19910033.0 1999-03-08

Publications (1)

Publication Number Publication Date
WO2000054297A1 true WO2000054297A1 (fr) 2000-09-14

Family

ID=7900034

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/001778 WO2000054297A1 (fr) 1999-03-08 2000-03-02 Disjoncteur multipole

Country Status (3)

Country Link
EP (1) EP1076909B1 (fr)
DE (2) DE19910033C1 (fr)
WO (1) WO2000054297A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE323791C (de) * 1918-11-20 1920-08-05 Aeg Einrichtung an elektrischen Apparaten, insbesondere Schaltapparaten, zur staub-, schwallwasser- und spritzwasserdichten Abdeckung von OEffnungen
FR654492A (fr) * 1927-10-29 1929-04-06 Brown Interrupteur multipolaire avec dispositif de protection contre les amorçages d'arcsentre pôles au moment de la rupture
DE569237C (de) * 1930-03-12 1933-01-31 Aeg Isolationsanordnung, insbesondere fuer elektrische Schaltgeraete
DE828415C (de) * 1949-07-05 1952-01-17 Peterreins & Co K G Elektrischer Schalter
EP0002686A1 (fr) * 1977-12-22 1979-07-11 Siemens Aktiengesellschaft Disjoncteur multipolaire de puissance basse tension avec arbre de commutation portant des bras de contact
EP0542636A1 (fr) * 1991-10-15 1993-05-19 Schneider Electric Sa Disjoncteur multipolaire à blocs unipolaires

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540655A1 (de) * 1985-11-13 1987-05-14 Siemens Ag Kontaktanordnung fuer niederspannungs-leistungsschalter mit einem bewegbaren isolierkoerper
DE59008678D1 (de) * 1990-12-14 1995-04-13 Siemens Ag Niederspannungs-Leistungsschalter mit einem isolierenden Koppelglied und einem Isolierschirm.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE323791C (de) * 1918-11-20 1920-08-05 Aeg Einrichtung an elektrischen Apparaten, insbesondere Schaltapparaten, zur staub-, schwallwasser- und spritzwasserdichten Abdeckung von OEffnungen
FR654492A (fr) * 1927-10-29 1929-04-06 Brown Interrupteur multipolaire avec dispositif de protection contre les amorçages d'arcsentre pôles au moment de la rupture
DE569237C (de) * 1930-03-12 1933-01-31 Aeg Isolationsanordnung, insbesondere fuer elektrische Schaltgeraete
DE828415C (de) * 1949-07-05 1952-01-17 Peterreins & Co K G Elektrischer Schalter
EP0002686A1 (fr) * 1977-12-22 1979-07-11 Siemens Aktiengesellschaft Disjoncteur multipolaire de puissance basse tension avec arbre de commutation portant des bras de contact
EP0542636A1 (fr) * 1991-10-15 1993-05-19 Schneider Electric Sa Disjoncteur multipolaire à blocs unipolaires

Also Published As

Publication number Publication date
DE19910033C1 (de) 2000-11-09
DE50015117D1 (de) 2008-06-05
EP1076909B1 (fr) 2008-04-23
EP1076909A1 (fr) 2001-02-21

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