EP1237171B1 - Dispositif pour le déclenchement sélectif - Google Patents

Dispositif pour le déclenchement sélectif Download PDF

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Publication number
EP1237171B1
EP1237171B1 EP20020003395 EP02003395A EP1237171B1 EP 1237171 B1 EP1237171 B1 EP 1237171B1 EP 20020003395 EP20020003395 EP 20020003395 EP 02003395 A EP02003395 A EP 02003395A EP 1237171 B1 EP1237171 B1 EP 1237171B1
Authority
EP
European Patent Office
Prior art keywords
hinged armature
circuit
short
contact
circuit breaker
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
EP20020003395
Other languages
German (de)
English (en)
Other versions
EP1237171A3 (fr
EP1237171A2 (fr
Inventor
Kurt Händler
Klaus Dieter Nürenberg
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.)
Eaton Industries GmbH
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
Publication of EP1237171A2 publication Critical patent/EP1237171A2/fr
Publication of EP1237171A3 publication Critical patent/EP1237171A3/fr
Application granted granted Critical
Publication of EP1237171B1 publication Critical patent/EP1237171B1/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
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • 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 an arrangement for the selective triggering of successive, selectively staggered circuit breakers, in particular of - tungsschutzschalter and circuit breaker.
  • the duration of action of the bondage system is determined by a timer.
  • the document EP 0 406 130 B1 shows an electromagnetically acting restraint system.
  • Known arrangements for generating the blocking signal for example according to document DE 195 45 928 A1, requires means for state detection and current detection of the directly affected by the short circuit breaker, which are generally realized as a complex electronic shutter and space-consuming air coils around the main flow paths. Such arrangements are therefore not suitable for small and inexpensive circuit breakers.
  • Document EP 0 455 564 B1 discloses an overpressure release for a circuit breaker which responds to an overpressure occurring in the contact space caused by arcing during the electrodynamic Contact opening arises as a result of a current flowing through the switching contacts short-circuit current.
  • the circuit breaker further comprises an actuating mechanism having a latch which is unlatchable via a trip shaft by a thermally-delayed overload release or an electromagnetic short-circuit release, whereby the circuit breaker is switched to the off state via the triggering actuating mechanism.
  • the overpressure trigger acts on the triggering shaft with a time delay with regard to the effect on the actuating mechanism.
  • this solution is not suitable for selectively triggering small short-circuit currents where no significant arcing occurs due to electrodynamic contact opening.
  • a circuit breaker in which for each main flow path, an electromagnetic short-circuit release, the spring-loaded hinged armature is attracted in the event of short circuit of a current-flowing yoke, is provided and the hinged armature rests in rest position on an adjustment for adjusting the tripping current.
  • the spring-loaded hinged armature is applied to a setting element for adjusting the triggering current in the rest position and is attracted by a stromumflossenen magnetic yoke in the short circuit, and formed between the hinged armature and the yoke connected to a signal terminals for outputting the blocking signal contact element , which is convertible from the open to the closed state by the attractive hinged armature.
  • the per main current path of the circuit breaker acted upon by the armature of an electromagnetic short-circuit release contact element represents a simple, without electronic means austiciande arrangement for selective release, the output signal is passed in the event of a short circuit as a blocking signal to the upstream circuit breaker.
  • the signal message is very fast due to the interaction with the fast-acting short-circuit release and is independent of a contact opening or arcing in the associated contact space.
  • the formation of the contact element as a make contact has the advantages that the arrangement in the non-triggering state requires no electrical energy and thus the susceptibility is limited to a minimum.
  • the solution according to the invention can be integrated in any circuit breaker with one or more short-circuit releases.
  • Circuit-breakers equipped with the selective tripping arrangement according to the invention can easily be combined to form modules having a plurality of main current paths.
  • An advantageous development further consists in that the output elements of the individual main current paths belonging contact elements are connected in parallel to cost a common blocking signal.
  • an electromagnetic short-circuit release 10 is provided per main current path of a circuit breaker. Its acted upon by a tension spring 3 hinged armature 11 is in rest position - that is, if no short-circuit current flows through the main flow path - to a responsible for all main flow paths, displaceable adjusting element 4 for setting the tripping current.
  • a magnetic yoke 12 is surrounded by a current winding 5 arranged in the associated main current path. In the event of a short circuit, the hinged armature 11 is attracted by the magnetic yoke 12 surrounded by the short-circuit current, thereby overcoming the main air gap 9.
  • the tightened hinged armature 11 acts on a mechanical transmission element 6 responsible for all main current paths to the right displaced transmission element 6 in turn acts on the Verklinkungs worn an actuating mechanism of the circuit breaker, whereby the actuating mechanism triggered and thus the main flow paths are interrupted.
  • the hinged armature 11 is pivotally mounted with its base 19 in a bearing point 13 of the magnetic yoke 12. At opposite points of the foot point 19 and the magnetic yoke 12, a contact element 14 is formed.
  • the contact element 14 is provided with a fixed contact 15 arranged on the magnet yoke 12 and a movable contact 16 arranged at the foot point 19 of the hinged armature 11.
  • the contacts 15 and 16 are connected to outgoing signal terminals 7 and 8 for receiving a blocking signal.
  • the hinged armature 11 and the magnetic yoke 12 are covered with plastic parts 17 and 18, respectively, in order to achieve magnetic decoupling in this area.
  • the foot point 19 of the hinged armature 11 is first attracted by the magnetic yoke 12 before the hinged armature 11 completely overcomes the main air gap 9.
  • a blocking signal is output to the higher-level circuit breaker leading the triggering of the actuating mechanism.
  • the contact elements 14 are connected in parallel to output a common blocking signal.

Landscapes

  • Breakers (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Claims (4)

  1. Arrangement de disjoncteurs de protection à déclenchement sélectif branchés les uns derrière les autres et échelonnés de manière sélective,
    - comprenant à chaque fois un mécanisme d'actionnement contenant un dispositif d'encliquetage,
    - un disjoncteur de protection directement concerné par un court-circuit délivrant un signal de blocage au mécanisme d'actionnement ou au système de déclenchement du disjoncteur de protection branché en amont et
    - un déclencheur sur court-circuit électromagnétique (10) étant prévu dans chaque trajet de courant principal, dont l'armature mobile (11) sous contrainte d'un ressort est, en cas de court-circuit, attirée par une culasse magnétique (12) traversée par le courant,
    caractérisé en ce que
    - l'armature mobile (11) en position de repos repose contre un élément de réglage (4) destiné à régler le courant de déclenchement et
    - l'armature mobile (11) est munie d'un contact mobile (16) et la culasse magnétique (12) d'un contact fixe (15) pour former un élément de contact (14) relié avec des bornes de signal (7, 8) et prévu pour délivrer le signal de blocage, lequel peut être amené de la position ouverte à la position fermée par l'attraction de l'armature mobile (11).
  2. Arrangement selon la revendication 1, caractérisé en ce que le point d'appui (13) de l'armature mobile (11) sur la culasse magnétique (12) est équipé d'un jeu de palier pour former un entrefer variable entre la position de repos et la position attirée de l'armature mobile (11) et l'élément de contact (14) est prévu dans cette zone.
  3. Arrangement selon la revendication 2, caractérisé en ce que dans la zone du point d'appui (13), l'armature mobile (11) et la culasse magnétique (12) sont isolées l'une de l'autre par une matière plastique.
  4. Arrangement selon l'une des revendications précédentes, caractérisé en ce que les éléments de contact (14 ; 24) affectés à différents trajets de courant principaux sont branchés en parallèle.
EP20020003395 2001-03-01 2002-02-14 Dispositif pour le déclenchement sélectif Expired - Lifetime EP1237171B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10109951 2001-03-01
DE2001109951 DE10109951A1 (de) 2001-03-01 2001-03-01 Anordnung zur selektiven Auslösung

Publications (3)

Publication Number Publication Date
EP1237171A2 EP1237171A2 (fr) 2002-09-04
EP1237171A3 EP1237171A3 (fr) 2004-03-17
EP1237171B1 true EP1237171B1 (fr) 2006-06-07

Family

ID=7675983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020003395 Expired - Lifetime EP1237171B1 (fr) 2001-03-01 2002-02-14 Dispositif pour le déclenchement sélectif

Country Status (2)

Country Link
EP (1) EP1237171B1 (fr)
DE (2) DE10109951A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE480308C (de) * 1926-05-19 1929-08-13 Aeg UEberstromwaermeausloeser
DE1087680B (de) * 1958-02-04 1960-08-25 Elektroschaltgeraete Goerlitz Elektromagnetischer UEberstromausloeser
DD106745A1 (fr) * 1973-07-13 1974-06-20
US5301083A (en) * 1991-09-30 1994-04-05 Eaton Corporation Remote control residential circuit breaker
DE19930089A1 (de) * 1999-06-30 2001-01-04 Moeller Gmbh Anordnung zur selektiven Auslösung

Also Published As

Publication number Publication date
EP1237171A3 (fr) 2004-03-17
EP1237171A2 (fr) 2002-09-04
DE50207049D1 (de) 2006-07-20
DE10109951A1 (de) 2002-09-05

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