EP1363299A3 - Circuit breaker for low voltage and high currents - Google Patents

Circuit breaker for low voltage and high currents Download PDF

Info

Publication number
EP1363299A3
EP1363299A3 EP03010744A EP03010744A EP1363299A3 EP 1363299 A3 EP1363299 A3 EP 1363299A3 EP 03010744 A EP03010744 A EP 03010744A EP 03010744 A EP03010744 A EP 03010744A EP 1363299 A3 EP1363299 A3 EP 1363299A3
Authority
EP
European Patent Office
Prior art keywords
contact
connecting web
circuit breaker
low voltage
high currents
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
EP03010744A
Other languages
German (de)
French (fr)
Other versions
EP1363299B1 (en
EP1363299A2 (en
Inventor
Ralph Kriechel
Uwe Linzenich
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
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 Moeller GmbH, Kloeckner Moeller GmbH filed Critical Moeller GmbH
Publication of EP1363299A2 publication Critical patent/EP1363299A2/en
Publication of EP1363299A3 publication Critical patent/EP1363299A3/en
Application granted granted Critical
Publication of EP1363299B1 publication Critical patent/EP1363299B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • 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
    • H01H2009/305—Means for extinguishing or preventing arc between current-carrying parts including means for screening for arc gases as protection of mechanism against hot arc gases or for keeping arc gases in the arc chamber
    • 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
    • H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

Die Erfindung betrifft ein Leistungsschalter für hohe Ströme und Niederspannung, der ein Unterteil (2) mit Zwischenwänden (5), einen in Seitenblenden (28) gelagerten Betätigungsmechanismus (30) mit einem Kniehebelsystem (34) aufweist und mehrere Kontakteinheiten (9 ... 11) aufweist. Die Kontakteinheiten (9 ... 11) enthalten mehrere bewegliche Kontaktfingern (18), die in einem U-förmigen Kontakthalter (24) gegen die Wirkung von Kontaktdruckfedern (26) schwenkbar gelagert sind. Ein Verbindungssteg (38) aus isolierendem Formstoff ist einstückig mit den Kontakthaltern (24) verbunden und verläuft oberhalb der Kontaktdruckfedern (26). Die mittlere Kontakteinheit (10) ist über ein in den Seitenblenden (28) schwenkbar gelagertes Halteblech (42) gelenkig mit dem Kniehebelsystem (34) gekoppelt. An dem Verbindungssteg (38) sind Abschirmsegmente (56, 57) angeformt, die an den Zwischenwänden (5) im Bereich von Aussparungen (54) verlaufen, die für die Schaltbewegung des Verbindungssteges (38) vorgesehen sind.

Figure 00000001
The invention relates to a circuit breaker for high currents and low voltage, comprising a lower part (2) with intermediate walls (5), an actuating mechanism (30) mounted in side panels (28) with a toggle system (34) and a plurality of contact units (9 ... 11 ) having. The contact units (9 ... 11) comprise a plurality of movable contact fingers (18) which are pivotally mounted in a U-shaped contact holder (24) against the action of contact pressure springs (26). A connecting web (38) of insulating molding material is integrally connected to the contact holders (24) and extends above the contact pressure springs (26). The middle contact unit (10) is pivotally coupled to the toggle lever system (34) via a retaining plate (42) which is pivotably mounted in the side panels (28). On the connecting web (38) shielding segments (56, 57) are formed, which extend at the intermediate walls (5) in the region of recesses (54) which are provided for the switching movement of the connecting web (38).
Figure 00000001
EP20030010744 2002-05-17 2003-05-14 Circuit breaker for low voltage and high currents Expired - Lifetime EP1363299B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002122010 DE10222010C1 (en) 2002-05-17 2002-05-17 Circuit breakers for high currents and low voltage
DE10222010 2002-05-17

Publications (3)

Publication Number Publication Date
EP1363299A2 EP1363299A2 (en) 2003-11-19
EP1363299A3 true EP1363299A3 (en) 2004-04-21
EP1363299B1 EP1363299B1 (en) 2007-04-18

Family

ID=29265344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030010744 Expired - Lifetime EP1363299B1 (en) 2002-05-17 2003-05-14 Circuit breaker for low voltage and high currents

Country Status (2)

Country Link
EP (1) EP1363299B1 (en)
DE (2) DE10222010C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10331822A1 (en) * 2003-07-14 2005-02-10 Siemens Ag Ship circuit breaker and such a vessel power supply and distribution system
US20090266794A1 (en) * 2006-03-29 2009-10-29 Heydendorf Juergen Arc Quenching Device With an Arc Quenching Material for a Circuit Breaker
EP2636052B1 (en) * 2011-02-08 2017-11-29 Siemens Aktiengesellschaft Limit stop apparatus, circuit breakers including limit stops, and methods of using same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525837A (en) * 1968-11-18 1970-08-25 Square D Co Movable contact structure for a molded-case electric circuit breaker
US4129762A (en) * 1976-07-30 1978-12-12 Societe Anonyme Dite: Unelec Circuit-breaker operating mechanism
US4490593A (en) * 1983-05-09 1984-12-25 Square D Company Arrangement for arc transfer in high amperage molded case circuit breaker
US4524339A (en) * 1983-05-09 1985-06-18 Square D Company Contact control arrangement for high amperage molded case circuit breaker
US4598186A (en) * 1983-05-09 1986-07-01 Square D Company Vent arrangement for high amperage molded case circuit breaker
US4849589A (en) * 1987-08-31 1989-07-18 Square D Company Contact assembly for a circuit breaker
US4866225A (en) * 1988-09-08 1989-09-12 Siemens Energy & Automation, Inc. Insulated light weight metallic crossbar in polyphase circuit breaker assemblies for inhibiting arcing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2583571B1 (en) * 1985-06-12 1994-02-18 Merlin Et Gerin LOW VOLTAGE CIRCUIT BREAKER WITH IMPROVED CUT.
FR2650434B1 (en) * 1989-07-26 1995-11-24 Merlin Gerin LOW VOLTAGE CIRCUIT BREAKER WITH MULTIPLE CONTACTS AND HIGH CURRENTS
FR2807565B1 (en) * 2000-04-10 2003-03-14 Schneider Electric Ind Sa POLE FOR AN ELECTRIC CIRCUIT BREAKER LOW POWER VOLTAGE LIMITER AND CIRCUIT BREAKER PROVIDED WITH SUCH A POLE

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525837A (en) * 1968-11-18 1970-08-25 Square D Co Movable contact structure for a molded-case electric circuit breaker
US4129762A (en) * 1976-07-30 1978-12-12 Societe Anonyme Dite: Unelec Circuit-breaker operating mechanism
US4490593A (en) * 1983-05-09 1984-12-25 Square D Company Arrangement for arc transfer in high amperage molded case circuit breaker
US4524339A (en) * 1983-05-09 1985-06-18 Square D Company Contact control arrangement for high amperage molded case circuit breaker
US4598186A (en) * 1983-05-09 1986-07-01 Square D Company Vent arrangement for high amperage molded case circuit breaker
US4849589A (en) * 1987-08-31 1989-07-18 Square D Company Contact assembly for a circuit breaker
US4866225A (en) * 1988-09-08 1989-09-12 Siemens Energy & Automation, Inc. Insulated light weight metallic crossbar in polyphase circuit breaker assemblies for inhibiting arcing

Also Published As

Publication number Publication date
EP1363299B1 (en) 2007-04-18
EP1363299A2 (en) 2003-11-19
DE10222010C1 (en) 2003-11-20
DE50307051D1 (en) 2007-05-31

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