EP0270158A2 - Dispositif de commutation - Google Patents

Dispositif de commutation Download PDF

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Publication number
EP0270158A2
EP0270158A2 EP87202164A EP87202164A EP0270158A2 EP 0270158 A2 EP0270158 A2 EP 0270158A2 EP 87202164 A EP87202164 A EP 87202164A EP 87202164 A EP87202164 A EP 87202164A EP 0270158 A2 EP0270158 A2 EP 0270158A2
Authority
EP
European Patent Office
Prior art keywords
switching
contact bridge
contact
contacts
bridge support
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.)
Granted
Application number
EP87202164A
Other languages
German (de)
English (en)
Other versions
EP0270158B1 (fr
EP0270158A3 (en
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 Elektrizitaets GmbH
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 Elektrizitaets GmbH, Kloeckner Moeller GmbH filed Critical Kloeckner Moeller Elektrizitaets 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 and connecting movable contacts located therein, a switch lock, which is equipped with an energy store, which is tensioned by means of a manual actuating element, and which is coupled to the contact bridge support of the movable contacts.
  • Such switching devices 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 switch lock 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 movable 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 an energy store act directly on the movable contacts, while a further control element indirectly causes the contact opening via the energy store.
  • the contact paths on the one hand require the relevant current path to be opened quickly and sufficiently, and on the other hand the switching device should switch off permanently.
  • the invention has for its object to provide a switching device that switches all current paths operationally by means of a magnetic drive, in which, however, one or more current paths are opened immediately and independently in the event of high overcurrents and almost simultaneously the energy storage device is triggered via the switch lock and the entire switching device is switched off.
  • This object is achieved in that the movable contacts within the contact bridge support are acted upon by compression springs which bring about the contact pressure when the switching device is switched on, and can be actuated by means of plungers movably arranged in the contact bridge support against the pressure of the compression springs in the sense of the contact opening, and that these plungers can be moved against the movable contacts through cutouts in the contact bridge support by different attachable switching devices and open the switching paths of all or individual poles.
  • An electromagnetic actuator acts on all plungers simultaneously via a multi-arm lever and opens all switching distances in the sense of the function of a contactor against the pressure of the contact pressure spring.
  • Each switching path is assigned a trigger device, which acts via an angle lever directly on the plunger arranged in the contact bridge carrier and thus causes the affected contact bridge to open quickly in the event of a fault, and which simultaneously acts on the switching lock in the sense of triggering the energy store and has a permanent opening of all switching distances.
  • the basic element consists of a switching chamber area 1 and a switch lock 2.
  • the fixed contacts 10, 11 are arranged, which are connected via current paths 101, 102 to the connecting terminals 103 and 104.
  • the fixed contacts 10, 11 are connected or disconnected via the movable contacts 12, 13 and the contact bridge 18 depending on the switching position.
  • the contact bridge 18 is mounted in a contact bridge carrier 15 such that it is pressed in the on position of the switching device by the contact pressure spring 14 against the fixed contacts 10, 11, while the contact pressure spring is supported on the bottom of the contact bridge carrier 15.
  • the contact bridge support 15 is coupled to the switching mechanism 2, which in the on position via the contact bridge support 15 represents the counterforce to the contact pressure spring 14 and thus presses the movable contacts 12, 13 against the fixed contacts 10, 11.
  • the switching lock 2 is switched into the tensioned state by means of a handle 21.
  • a plunger 16 is arranged displaceably in the direction of movement of the contact bridge carrier 15 in the contact bridge carrier 15.
  • This plunger 16 is on the one hand under the action of levers 31 and 41, on the other hand it bears against the contact bridge 18.
  • the lever 41 is under the action of an overcurrent release 4 and has the task of transmitting the movement of the release plunger 43 to the movable contacts without delay in the event of an overcurrent.
  • the lever 41 has two legs 41a and 41b. While the leg 41a causes the instantaneous but temporary opening of the contacts, the second leg 41b and the interposition of a plunger 42 unlatch the switching lock 2 and thus the final opening of the switching paths. An overcurrent release 4 is assigned to each switching path.
  • a magnetic drive 3 is provided on the side opposite the overcurrent release 4, which acts on the plunger 16 by means of an angle lever 31 and opens the switching paths against the pressure of the contact pressure spring 14.
  • the angle lever 31 is designed according to the number of current paths in such a way that it opens all switching paths simultaneously.
  • FIG. 2 shows the contact bridge carrier 15 in a side view.
  • the switching mechanism 2 moves the entire contact bridge support 15 in the event of a circuit and opens all current paths in the same direction.
  • An almost simultaneous opening of the current paths is also achieved by switching the magnetic drive 3, which acts in the same way on all plungers 16 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.
  • a single contact bridge is opened when a high overcurrent (short-circuit current) loads one of the current paths and activates the overcurrent release 4 associated with this current path. This actuates the associated lever 41 or 41 ⁇ or 42 ⁇ directly and the contact plunger 16 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)
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 true EP0270158A2 (fr) 1988-06-08
EP0270158A3 EP0270158A3 (en) 1990-01-03
EP0270158B1 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)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0351724A2 (fr) * 1988-07-20 1990-01-24 Asea Brown Boveri Aktiengesellschaft Disjoncteur électrique
FR2639144A1 (fr) * 1988-11-17 1990-05-18 Telemecanique Electrique Mecanisme a serrure pour contacteur-limiteur
FR2650437A1 (fr) * 1989-07-27 1991-02-01 Telemecanique Contacteur-disjoncteur a double coupure
EP0486389A1 (fr) * 1990-11-15 1992-05-20 Schneider Electric Sa Interrupteur de protection
EP0374283B1 (fr) * 1987-12-04 1994-07-20 A.B. Chance Company Dispositif de sectionnement comportant un dispositif d'actionnement réinitialisable
EP0617449A1 (fr) * 1993-03-25 1994-09-28 Schneider Electric Sa Appareil interrupteur
WO1995008837A1 (fr) * 1993-09-24 1995-03-30 Schneider Electric S.A. Appareil interrupteur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE845974C (de) * 1944-11-25 1952-08-07 Landis & Gyr Ag Motorschutzschalter mit Schnellausloesung und Zweifachkontaktunterbrechung
DE1155525B (de) * 1961-06-26 1963-10-10 Licentia Gmbh Elektrischer Selbstschalter, z.B. Motorschutzschalter mit thermischen UEberstrom- und elektromagnetischen Schnellausloesern
DD127737A2 (de) * 1976-09-30 1977-10-12 Lothar Ackermann Strombegrenzender selbstschalter
EP0179677A1 (fr) * 1984-09-27 1986-04-30 Telemecanique Dispositif de commutation à composition variable

Family Cites Families (2)

* 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
DE7328920U (de) * 1973-08-08 1973-11-15 Bbc Ag Elektrisches Schaltgerat, insbeson dere Schutz

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE845974C (de) * 1944-11-25 1952-08-07 Landis & Gyr Ag Motorschutzschalter mit Schnellausloesung und Zweifachkontaktunterbrechung
DE1155525B (de) * 1961-06-26 1963-10-10 Licentia Gmbh Elektrischer Selbstschalter, z.B. Motorschutzschalter mit thermischen UEberstrom- und elektromagnetischen Schnellausloesern
DD127737A2 (de) * 1976-09-30 1977-10-12 Lothar Ackermann Strombegrenzender selbstschalter
EP0179677A1 (fr) * 1984-09-27 1986-04-30 Telemecanique Dispositif de commutation à composition variable

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374283B1 (fr) * 1987-12-04 1994-07-20 A.B. Chance Company Dispositif de sectionnement comportant un dispositif d'actionnement réinitialisable
EP0351724A2 (fr) * 1988-07-20 1990-01-24 Asea Brown Boveri Aktiengesellschaft Disjoncteur électrique
EP0351724A3 (fr) * 1988-07-20 1991-08-14 Asea Brown Boveri Aktiengesellschaft Disjoncteur électrique
FR2639144A1 (fr) * 1988-11-17 1990-05-18 Telemecanique Electrique Mecanisme a serrure pour contacteur-limiteur
EP0369844A1 (fr) * 1988-11-17 1990-05-23 Telemecanique Mécanisme à serrure pour contacteur-limiteur
FR2650437A1 (fr) * 1989-07-27 1991-02-01 Telemecanique Contacteur-disjoncteur a double coupure
BE1004482A3 (fr) * 1989-07-27 1992-12-01 Telemecanique Contacteur-disjoncteur a double coupure.
EP0486389A1 (fr) * 1990-11-15 1992-05-20 Schneider Electric Sa Interrupteur de protection
FR2669463A1 (fr) * 1990-11-15 1992-05-22 Telemecanique Interrupteur de protection.
EP0617449A1 (fr) * 1993-03-25 1994-09-28 Schneider Electric Sa Appareil interrupteur
WO1995008837A1 (fr) * 1993-09-24 1995-03-30 Schneider Electric S.A. Appareil interrupteur
FR2710453A1 (fr) * 1993-09-24 1995-03-31 Telemecanique Appareil contacteur-disjoncteur.

Also Published As

Publication number Publication date
DE3637418C2 (fr) 1989-09-28
EP0270158B1 (fr) 1994-01-26
DE3788941D1 (de) 1994-03-10
EP0270158A3 (en) 1990-01-03
DE3637418A1 (de) 1988-05-11

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