EP1126488B1 - Interrupteur sélectif en particulier un interrupteur de protection de ligne principale - Google Patents

Interrupteur sélectif en particulier un interrupteur de protection de ligne principale Download PDF

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Publication number
EP1126488B1
EP1126488B1 EP01102622A EP01102622A EP1126488B1 EP 1126488 B1 EP1126488 B1 EP 1126488B1 EP 01102622 A EP01102622 A EP 01102622A EP 01102622 A EP01102622 A EP 01102622A EP 1126488 B1 EP1126488 B1 EP 1126488B1
Authority
EP
European Patent Office
Prior art keywords
selective
bimetallic strip
bimetallic
switching device
bimetal
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
EP01102622A
Other languages
German (de)
English (en)
Other versions
EP1126488A2 (fr
EP1126488A3 (fr
Inventor
Erwin Muders
Joachim Majewski
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 Patent GmbH
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1126488A2 publication Critical patent/EP1126488A2/fr
Publication of EP1126488A3 publication Critical patent/EP1126488A3/fr
Application granted granted Critical
Publication of EP1126488B1 publication Critical patent/EP1126488B1/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H71/162—Electrothermal mechanisms with bimetal element with compensation for ambient temperature
    • 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
    • H01H71/1081—Modifications for selective or back-up protection; Correlation between feeder and branch circuit breaker

Definitions

  • the invention relates to a selective switching device according to the preamble of claim 1.
  • Such a switching device has become known from DE 195 26 592 C2.
  • This switching device has a main current path with a main bimetallic and a Maustrompfad, in which a so-called selective bimetal is located.
  • the Hauptbimetall a Kompensationsbimetall is assigned.
  • the three bimetals are approximately parallel to each other and their free ends lie in a line which is approximately perpendicular to the mounting plane of the switching device.
  • a coupling slide Transversely to the end of the bimetallic a coupling slide runs, which is designed as a flat slide and at one end has a pocket into which the Kompensationsbimetall engages, whereas at the other end a transverse wall is provided, against which strikes the Hauptbimetall when deflecting and entrains the slide ,
  • the Kompensationsbimetall is firmly connected to a release lever, so that when the Kompensationsbimetall is pivoted from Hauptbimetall, the release lever unlatches a Verklinkungsstelle in the switching mechanism of the switching device.
  • the selective bimetal located between the two also acts on a transverse wall of the slider so that the selectivity bimetal pivots the trigger lever.
  • the object of the invention is to further improve a switching device of the type mentioned.
  • the selective bimetal acts directly on the Verklinkungsstelle, without being coupled with the compensation bimetal.
  • the coupling slide is designed as an elongate flat slide, which extends transversely to the bimetals and is provided with perpendicular to the plane of the flat rail extending walls, with which the main and the compensation bimetal cooperate.
  • the selective switching device in which the invention is implemented, is a switching device with the designation S 700 of ABB Stotz-contact GmbH, Heidelberg; this switching device S 700 is described in DE 195 26 592 C2.
  • the switching device contains a main bimetal 10 which is located in a main current path (not shown) of the circuit breaker. This main bimetal is firmly clamped at one end at 11; the other end 12 may deflect due to thermal exposure.
  • the Hauptbimetall 10 is associated with a Kompensationsbimetall 13, which is parallel to the Hauptbimetall 10 and which is secured to a holding device 14 which is pivotable about an axis 15 pivotally and to which a trigger lever 16 is attached, in addition to the Kompensationsbimetall 13 parallel thereto and protrudes in the same direction and at its free end contains a bend 17 which acts on a Verklinkungshebel 18 of a switching mechanism 19 shown only schematically.
  • the axis of rotation 15 is located approximately on a line which is approximately perpendicular to the mounting plane B-B and through the attachment point 11 of the main bimetal.
  • the free ends 12, 20 of the Hauptbimetalls 10 and the Kompensationsbimetalls 13 are also approximately on a line that is perpendicular or approximately perpendicular to the mounting plane B-B.
  • Transverse to the bimetals 10, 13 extends a slider 21, which has at its one end by walls 22 and 23 formed pocket 24 into which the compensating bimetal with its free end 20 engages.
  • the mounting plane BB facing the end of the slider 21 is a perpendicular transverse wall 25 against which the free end 12 of the main bimetal comes to rest when heated and shifts the slider in the direction of arrow P.
  • the Kompensationsbimetall 13 pivoted about the axis 15, so that the release lever 16 pivots clockwise and the cranked end 17 abuts against the Verklinkungshebel 18 and this also shifts in the direction of arrow P, so that the latching point located in the interior of the switching mechanism 19 and open contact points in the switching device be opened.
  • selective bimetal 26 is inserted in a secondary current path of the switching device; This selective bimetal 26 is intended to permanently open the switch when an overcurrent is present for a certain time.
  • the representation of the mode of operation of the selective bimetal 26 can be found in the abovementioned DE 195 26 592 C2.
  • a Doppelarmhebel 31 is rotatably mounted, which has a first arm 32 which cooperates with the Selektivbimetall 26; the double-arm lever 31 further has a second arm 33 which cooperates with the latching lever 18.

Landscapes

  • Breakers (AREA)
  • Thermally Actuated Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (3)

  1. Interrupteur sélectif, en particulier interrupteur de protection de ligne principale, avec un premier trajet de courant dans lequel se trouvent un bilame principal (10) et un bilame de compensation relié au précédent, ces bilames étant couplés mécaniquement par un coulisseau de couplage (21), et un trajet de courant auxiliaire dans lequel se trouve un bilame sélectif, tous les bilames étant parallèles entre eux, caractérisé en ce que le bilame sélectif agit par l'intermédiaire d'un élément de transmission propre (31) sur un point d'encliquetage d'un verrouillage de connexion (19).
  2. Interrupteur sélectif selon la revendication 1, caractérisé en ce que l'élément de transmission (31) est un levier à deux bras dont un bras (32) coopère avec le bilame sélectif (26), tandis que l'autre bras (33), quand le bilame se courbe, vient buter sur un levier d'encliquetage (18), en produisant ainsi l'ouverture du point d'encliquetage..
  3. Interrupteur selon la revendication 1 ou 2, caractérisé en ce que l'élément de couplage est un coulisseau plat allongé, perpendiculaire au bilame (10, 26, 13) et présentant des parois qui sont perpendiculaires au plan du coulisseau et parallèles au plan de fixation, le bilame principal (10) et le bilame de compensation (13) coopérant entre eux par ces parois, indépendamment du bilame sélectif (26).
EP01102622A 2000-02-16 2001-02-07 Interrupteur sélectif en particulier un interrupteur de protection de ligne principale Expired - Lifetime EP1126488B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10006944 2000-02-16
DE10006944A DE10006944A1 (de) 2000-02-16 2000-02-16 Selektives Schaltgerät, insbesondere Hauptleitungsschutzschalter

Publications (3)

Publication Number Publication Date
EP1126488A2 EP1126488A2 (fr) 2001-08-22
EP1126488A3 EP1126488A3 (fr) 2003-07-30
EP1126488B1 true EP1126488B1 (fr) 2006-12-27

Family

ID=7631119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01102622A Expired - Lifetime EP1126488B1 (fr) 2000-02-16 2001-02-07 Interrupteur sélectif en particulier un interrupteur de protection de ligne principale

Country Status (3)

Country Link
EP (1) EP1126488B1 (fr)
AT (1) ATE349768T1 (fr)
DE (2) DE10006944A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004019178A1 (de) * 2004-04-16 2005-11-03 Abb Patent Gmbh Installationsschaltgerät
DE102008020453A1 (de) 2007-04-28 2008-10-30 Abb Ag Installationsschaltgerät mit einem thermischen Auslöser

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823975A1 (de) * 1988-07-15 1990-01-18 Asea Brown Boveri Selektive kurzschlussstromschutzeinrichtung
DE4040263A1 (de) * 1990-12-17 1992-06-25 Abb Patent Gmbh Installationsgeraet
DE4118377C2 (de) * 1991-06-05 1999-03-04 Hager Electro Gmbh Leitungs- und/oder Geräteschutzschalter
DE19526592C2 (de) * 1995-07-21 1999-04-15 Abb Patent Gmbh Elektrischer Schalter, insbesondere Leitungsschutzschalter

Also Published As

Publication number Publication date
EP1126488A2 (fr) 2001-08-22
DE10006944A1 (de) 2001-09-06
EP1126488A3 (fr) 2003-07-30
DE50111711D1 (de) 2007-02-08
ATE349768T1 (de) 2007-01-15

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