EP0938121A2 - Disjoncteur automatique, particulièrement disjoncteur de protection à basse tension - Google Patents

Disjoncteur automatique, particulièrement disjoncteur de protection à basse tension Download PDF

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Publication number
EP0938121A2
EP0938121A2 EP98124674A EP98124674A EP0938121A2 EP 0938121 A2 EP0938121 A2 EP 0938121A2 EP 98124674 A EP98124674 A EP 98124674A EP 98124674 A EP98124674 A EP 98124674A EP 0938121 A2 EP0938121 A2 EP 0938121A2
Authority
EP
European Patent Office
Prior art keywords
switch
arc
contact
quenching
plates
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.)
Withdrawn
Application number
EP98124674A
Other languages
German (de)
English (en)
Other versions
EP0938121A3 (fr
Inventor
Hans Dipl.-Ing Kurzinski
Günter Dipl.-Ing. Vovdran
Bernd Dipl.-Ing. Kiesslich
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.)
Esg Elektroschaltgerate Gorlitz GmbH
Original Assignee
Esg Elektroschaltgerate Gorlitz 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 Esg Elektroschaltgerate Gorlitz GmbH filed Critical Esg Elektroschaltgerate Gorlitz GmbH
Publication of EP0938121A2 publication Critical patent/EP0938121A2/fr
Publication of EP0938121A3 publication Critical patent/EP0938121A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
    • H01H77/107—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by the blow-off force generating means, e.g. current loops
    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/345—Mounting of arc chutes

Definitions

  • the invention relates to a circuit breaker, in particular a low-voltage circuit breaker, with a multi-part Insulated housing, a switch lock, loop-shaped Connection rails with fixed contacts, which movable contact bridges face each other and with them can be brought into contact and released and arc guiding and quenching plates having arc quenching chambers for each switching pole.
  • Low voltage circuit breakers are usually switches with current heat releases as well as with quick releases, who work on a key switch and serve primarily that Overload and short circuit protection. Own as a lock switch they shutdown properties. In addition, they can be operate manually using an ON / OFF control element and switch remotely if necessary.
  • Said switches are used in large numbers as motor protection switches, by limiting their tripping characteristic to the Operating conditions of an engine to be protected is adapted in an electrical system. Protection relates both on the permissible long-term heating of a Motors as well as its protection against short circuit.
  • circuit breakers are found as so-called Circuit breaker application. Protect as such an electrical system against impermissible operating conditions. You can use currents under operating conditions in the Switch on, lead and switch off circuit. Furthermore they must also be under specified exceptional conditions - like short circuit - switch on during a be able to carry electricity and switch off for a specified time.
  • the invention has for its object a solution find, after which a motor protection switch structurally identical can be used as a circuit breaker for a system can, the constructive - and material costs close to the effort of a conventional motor protection switch to orient.
  • the automatic switch in the manner of a conventional motor protection switch consists essentially of an upper part 1 with a switch lock, not shown, which can be switched on via a switch 2 and by means of a switch, not shown, and are triggered by electricity and magnetic triggers can.
  • the on and off movements are on a switching crossbar 3 transmit the spring-loaded movable Contact bridges 4 accommodates.
  • the switch crossbar 3 is made of a thermoset material, the one Melting of the contact bridges 4 prevented and temperature resistance up to 220 ° C.
  • the contact pressure springs 6 ensure sufficient contact pressure.
  • the fixed contacts 5 sit on contact carriers 7, which are in a wide loop are led to the outer connections 8.
  • the loop guide enables in connection with the movable Contact bridges 4 at the electrodynamic contact separation short-circuit-like currents.
  • the switching arc runs into the quenching chamber insert 11 one, divides itself into sections, runs through the whole Chamber, is cooled and ultimately safely extinguished.
  • the contact stroke of the movable contacts 5 is at least as large as the height of the quench chamber insert 11, with what it is ensured that really all the quenching plates and that Baffle plate 10 used for arcing and quenching become.
  • the arc plasma creates in the closed Switch lower part 13 a sudden excess pressure, the is degraded in a controlled manner by means of the outlet slots 14. If the arc is strong, the arc plasma could after leaving the outlet slots 14, the individual Bridge current phases due to ionization of the outside air and cause dangerous short circuits, which is why the outlet slots 14 additionally formed like a labyrinth are.
  • their stiffness is higher than that of elastic Base plate 12 to the pressing force of the base plate 12 transfer to the fixed contact carrier 7 without loss.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
EP98124674A 1998-02-19 1998-12-24 Disjoncteur automatique, particulièrement disjoncteur de protection à basse tension Withdrawn EP0938121A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998106944 DE19806944C1 (de) 1998-02-19 1998-02-19 Selbstschalter, insbesondere Niederspannungs-Schutzschalter
DE19806944 1998-02-19

Publications (2)

Publication Number Publication Date
EP0938121A2 true EP0938121A2 (fr) 1999-08-25
EP0938121A3 EP0938121A3 (fr) 2000-06-07

Family

ID=7858284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98124674A Withdrawn EP0938121A3 (fr) 1998-02-19 1998-12-24 Disjoncteur automatique, particulièrement disjoncteur de protection à basse tension

Country Status (2)

Country Link
EP (1) EP0938121A3 (fr)
DE (1) DE19806944C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367617A1 (fr) * 2002-05-23 2003-12-03 BITRON S.p.A. Sectionneur de coupure en charge, en particulier pour circuit de charge d'une batterie d'un véhicule à moteur
EP1422735A2 (fr) * 2002-11-21 2004-05-26 ABB PATENT GmbH Procédé de fabrication du boítier d'un appareil électrique de commutation
CN101617379B (zh) * 2006-11-24 2012-02-29 Abb专利有限公司 开关室组件和开关装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19943965A1 (de) * 1999-09-14 2001-03-15 Moeller Gmbh Niederspannungsschaltgerät

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631507A (en) * 1984-09-27 1986-12-23 La Telemecanique Electrique Variable composition switching device
EP0351724A2 (fr) * 1988-07-20 1990-01-24 Asea Brown Boveri Aktiengesellschaft Disjoncteur électrique
WO1994011894A1 (fr) * 1992-11-13 1994-05-26 Square D Company Dispositif ameliore de suppression d'arc et methode d'assemblage de ce dispositif
EP0727805A2 (fr) * 1995-02-16 1996-08-21 Siemens Aktiengesellschaft Unité de levier de contact pour disjoncteur basse tension

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6930259U (de) * 1969-07-25 1969-11-13 Siemens Ag Peltier-kuehlblock

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631507A (en) * 1984-09-27 1986-12-23 La Telemecanique Electrique Variable composition switching device
EP0351724A2 (fr) * 1988-07-20 1990-01-24 Asea Brown Boveri Aktiengesellschaft Disjoncteur électrique
WO1994011894A1 (fr) * 1992-11-13 1994-05-26 Square D Company Dispositif ameliore de suppression d'arc et methode d'assemblage de ce dispositif
EP0727805A2 (fr) * 1995-02-16 1996-08-21 Siemens Aktiengesellschaft Unité de levier de contact pour disjoncteur basse tension

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367617A1 (fr) * 2002-05-23 2003-12-03 BITRON S.p.A. Sectionneur de coupure en charge, en particulier pour circuit de charge d'une batterie d'un véhicule à moteur
EP1422735A2 (fr) * 2002-11-21 2004-05-26 ABB PATENT GmbH Procédé de fabrication du boítier d'un appareil électrique de commutation
EP1422735A3 (fr) * 2002-11-21 2006-04-12 ABB PATENT GmbH Procédé de fabrication du boîtier d'un appareil électrique de commutation
CN101617379B (zh) * 2006-11-24 2012-02-29 Abb专利有限公司 开关室组件和开关装置

Also Published As

Publication number Publication date
DE19806944C1 (de) 1999-06-24
EP0938121A3 (fr) 2000-06-07

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