EP0270158B1 - Dispositif de commutation - Google Patents

Dispositif de commutation Download PDF

Info

Publication number
EP0270158B1
EP0270158B1 EP87202164A EP87202164A EP0270158B1 EP 0270158 B1 EP0270158 B1 EP 0270158B1 EP 87202164 A EP87202164 A EP 87202164A EP 87202164 A EP87202164 A EP 87202164A EP 0270158 B1 EP0270158 B1 EP 0270158B1
Authority
EP
European Patent Office
Prior art keywords
contacts
contact bridge
contact
switching
pressure
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
EP87202164A
Other languages
German (de)
English (en)
Other versions
EP0270158A3 (en
EP0270158A2 (fr
Inventor
Hellmut Behr
Jürgen Ehlert
Karlheinz Hild
Heinrich Moog
Oskar Raible
Wilhelm Scharhag
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
Kloeckner 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 Kloeckner Moeller GmbH filed Critical Kloeckner Moeller GmbH
Publication of EP0270158A2 publication Critical patent/EP0270158A2/fr
Publication of EP0270158A3 publication Critical patent/EP0270158A3/de
Application granted granted Critical
Publication of EP0270158B1 publication Critical patent/EP0270158B1/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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair
    • 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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts

Definitions

  • the invention relates to a switching device, consisting of a switching chamber area, with fixed contacts located therein, a switching lock, which is equipped with an energy store, which is tensioned by means of a manual actuation element, and which is coupled to the contact bridge support of the movable contacts.
  • the switch lock is equipped with an energy store which is tensioned by means of a manual actuation element and which moves the contact bridge carrier into the open position and results in an opening of all switching paths until the next actuation of the manual actuation element.
  • Each of the switching paths is assigned a trigger device which, in the event of a fault, causes the contact bridge concerned to open quickly, in that plungers are movably arranged in the contact bridge carrier, which can be moved against the movable contacts through recesses in the contact bridge carrier by means of an angle lever, on which the triggering device acts directly.
  • the switching paths of all or individual poles assigned to the angle lever are opened, the triggering device acting on the switching mechanism via a release lever in the sense of triggering the energy store.
  • Switching devices of this type are already known in different designs. They are usually used in switchgear that, on the one hand, switches motors in operation and, on the other hand, is designed to protect against overcurrents. The operational switching takes place either via a key switch with manual drive or via a magnetic drive in the manner of a contactor, while protection against overcurrents is ensured by tripping elements which act on the moving contacts via the switch lock.
  • European patent application 179 677 describes a switching device of this type, in which a drive element and a control element with energy accumulator act directly on the movable contacts, while another control element indirectly causes the contact opening via the energy accumulator.
  • a switching device which consists of a multi-pole switching chamber area with fixed contacts located therein and movable contacts connecting them via a contact bridge. Furthermore, a switch lock acts, which is equipped with an energy store and which is coupled to the contact bridge support of the movable contacts.
  • the movable contacts are acted upon by compression springs which, when closed, bring about the contact pressure. They can be actuated against the compression springs in the sense of the contact opening by means of movable plungers arranged in the contact bridge support.
  • a shutdown in the event of high overcurrents cannot take place immediately, as is required for a welding-free and current-limiting switching.
  • a switching device is known, with a contact bridge support, in which a contact bridge is supported acted upon by a compression spring, and can be moved within the contact bridge support by a longitudinally displaceably mounted tappet.
  • the plunger cannot be operated from the outside and only acts as a damping element against contact bruises.
  • a device for increasing the switch-off speed is described in DE-PS 65 45 11.
  • an impact anchor acts on all moving contacts simultaneously via a frame. The moving mass of the frame and the contact bridge support is too slow for an effective shortening of the power interruption in this device.
  • the invention has for its object to provide a switching device that switches all current paths operationally by means of a magnetic drive, but in which one or more current paths are opened immediately and independently in the event of high overcurrents and almost simultaneously triggers the energy storage of the switch lock and the whole Switching device can be switched off.
  • Fig. 2 shows the contact bridge carrier 15 in a side view.
  • the switching mechanism 2 which moves the entire contact bridge support 15 in the event of a circuit and opens all current paths simultaneously.
  • An almost simultaneous opening of the current paths is also achieved by switching the magnetic drive 3, which acts on all plungers 16 simultaneously via the lever 31, which can be seen in particular in FIG. 3, and moves the contact bridge 18 into the open position via these.
  • the opening of your individual contact bridge takes place when a high overcurrent (short-circuit current) loads one of the current paths and activates the overcurrent release 4 associated with this current path.
  • the latter actuates the assigned lever 41 or 41 'or 42' directly and the contact bridge 18 of the loaded current paths is lifted off against the pressure of a spring 14 via the corresponding plunger 16.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Claims (1)

  1. Mécanisme de couplage comprenant une chambre (1) uni- ou multipolaire, contenant des contacts fixes (10, 11) et des contacts mobiles (12, 13) reliés par un pont de contacts, poussés à l'intérieur du socle (15) du pont des contacts par des ressorts de pression (14) provoquant la pression du contact à l'état enclenché du mécanisme de couplage et pouvant être actionnés contre la pression de ces ressorts de pression (14) dans le sens de l'ouverture des contacts, un verrou de maintien (2) couplé avec le socle du pont de contacts (15) des contacts mobiles (12, 13) et équipé d'un accumulateur d'énergie tendu au moyen d'un élément de commande manuelle (21) déplaçant le socle du pont de contacts (15) en position ouverte et entraînant l'ouverture ininterrompue de toutes les longueurs de couplage jusqu'au prochain actionnement de l'élément de commande manuelle (21), un déclencheur (4) étant affecté à chaque longueur de couplage provoquant une ouverture rapide du pont de contacts concerné en cas d'incident du fait que des poussoirs (16) sont disposés de façon mobile dans le socle du pont de contacts (15) et agissant directement sur le déclencheur (4) à travers des évidements dans le socle du pont de contacts (15) au moyen d'un levier coudé (41), pouvant être déplacé contre les contacts mobiles (12, 13) afin d'ouvrir les longueurs de couplage affectées au levier coudé (41) de tous ou de certains pôles, le déclencheur agissant sur le verrou de maintien (2) par l'intermédiaire d'un poussoir de déclic (42) dans le sens du déclenchement de l'accumulateur d'énergie,
    caractérisé en ce qu'une commande électromagnétique (3) est prévue et agit simultanément sur tous les poussoirs (16) au moyen d'un levier (31) et ouvre les longueurs de couplage contre la pression des ressorts de pression des contacts (14) dans le sens de la fonction d'un contacteur.
EP87202164A 1986-11-03 1987-11-03 Dispositif de commutation Expired - Lifetime EP0270158B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3637418 1986-11-03
DE19863637418 DE3637418A1 (de) 1986-11-03 1986-11-03 Schaltvorrichtung

Publications (3)

Publication Number Publication Date
EP0270158A2 EP0270158A2 (fr) 1988-06-08
EP0270158A3 EP0270158A3 (en) 1990-01-03
EP0270158B1 true EP0270158B1 (fr) 1994-01-26

Family

ID=6313067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87202164A Expired - Lifetime EP0270158B1 (fr) 1986-11-03 1987-11-03 Dispositif de commutation

Country Status (2)

Country Link
EP (1) EP0270158B1 (fr)
DE (2) DE3637418A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4795996A (en) * 1987-12-04 1989-01-03 A.B. Chance Company Electronic sectionalizer with resettable actuator
DE3824546A1 (de) * 1988-07-20 1990-01-25 Asea Brown Boveri Elektrischer leistungsschalter
FR2639144B1 (fr) * 1988-11-17 1993-05-28 Telemecanique Electrique Mecanisme a serrure pour contacteur-limiteur
FR2650437B1 (fr) * 1989-07-27 1991-10-18 Telemecanique Contacteur-disjoncteur a double coupure
FR2669463B1 (fr) * 1990-11-15 1995-05-12 Telemecanique Interrupteur de protection.
EP0617449B1 (fr) * 1993-03-25 1997-10-22 Schneider Electric Sa Appareil interrupteur
FR2710453B1 (fr) * 1993-09-24 1995-10-20 Telemecanique Appareil contacteur-disjoncteur.
DE4322935C2 (de) * 1993-07-09 1995-10-26 Kloeckner Moeller Gmbh Kontaktsystem für ein elektromagnetisches Schaltgerät mit Schnellauslöser
DE4441467C2 (de) * 1994-11-22 1997-02-27 Kloeckner Moeller Gmbh Kontaktsystem für ein elektromagnetisches Schaltgerät mit Schnellauslöser
FR2752087B1 (fr) * 1996-07-30 1998-09-11 Schneider Electric Sa Appareil interrupteur de type contacteur-disjoncteur

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE654511C (de) * 1934-11-24 1937-12-27 Aeg Elektromagnetisches Schaltschuetz
NL65162C (fr) * 1944-11-25
DE1155525B (de) * 1961-06-26 1963-10-10 Licentia Gmbh Elektrischer Selbstschalter, z.B. Motorschutzschalter mit thermischen UEberstrom- und elektromagnetischen Schnellausloesern
DE7328920U (de) * 1973-08-08 1973-11-15 Bbc Ag Elektrisches Schaltgerat, insbeson dere Schutz
DD127737A2 (de) * 1976-09-30 1977-10-12 Lothar Ackermann Strombegrenzender selbstschalter
FR2570872B1 (fr) * 1984-09-27 1988-08-26 Telemecanique Electrique Dispositif de commutation a composition variable

Also Published As

Publication number Publication date
DE3637418A1 (de) 1988-05-11
DE3637418C2 (fr) 1989-09-28
DE3788941D1 (de) 1994-03-10
EP0270158A3 (en) 1990-01-03
EP0270158A2 (fr) 1988-06-08

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