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EP1376640A3 - Electrical circuit breaker with a switch contact arrangement with a current loop - Google Patents

Electrical circuit breaker with a switch contact arrangement with a current loop Download PDF

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Publication number
EP1376640A3
EP1376640A3 EP03090135A EP03090135A EP1376640A3 EP 1376640 A3 EP1376640 A3 EP 1376640A3 EP 03090135 A EP03090135 A EP 03090135A EP 03090135 A EP03090135 A EP 03090135A EP 1376640 A3 EP1376640 A3 EP 1376640A3
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
current loop
contact arrangement
current
electrical circuit
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Withdrawn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
EP03090135A
Other languages
German (de)
French (fr)
Other versions
EP1376640A2 (en
Inventor
Ludvik Godesa
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1376640A2 publication Critical patent/EP1376640A2/en
Publication of EP1376640A3 publication Critical patent/EP1376640A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • 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
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches

Landscapes

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

Abstract

Ein Leistungsschalter (2) weist eine Schaltkontaktanordnung (1) mit einer Stromschleife (20) auf, um auf die Schaltstücke (10, 12) eine vom Strom abhängige Kraft einwirken zu lassen. Hierzu sind an einem feststehenden Stromleiter 4 und an einem Kontakthebel 8 parallel zueinander bogenförmig und konzentrisch angeordnete Abschnitte (21, 22) angeordnet. Je nach der Position eines Zentrums (24) einer von den bogenförmigen Abschnitten (21, 22) ausgehenden resultierenden Kraft (26) bezüglich eines Schwenklagers (9) des Kontakthebels (8) wirkt auf diesen ein Drehmoment im öffnenden oder im schließenden Sinn. Unter Verwendung weitgehend gleicher Teile sind somit Leistungsschalter mit strombegrenzender oder die Kontaktkraft verstärkender Wirkung herstellbar.

Figure 00000001
A circuit breaker (2) has a switching contact arrangement (1) with a current loop (20) in order to allow the switching pieces (10, 12) to act on a current-dependent force. For this purpose, parallel to each other arcuate and concentrically arranged portions (21, 22) are arranged on a fixed conductor 4 and a contact lever. Depending on the position of a center (24) of one of the arcuate portions (21, 22) outgoing resulting force (26) with respect to a pivot bearing (9) of the contact lever (8) acts on this torque in the opening or in the closing sense. Using largely identical parts thus circuit breaker with current-limiting or the contact force amplifying effect can be produced.
Figure 00000001
EP03090135A 2002-06-27 2003-05-05 Electrical circuit breaker with a switch contact arrangement with a current loop Withdrawn EP1376640A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10230085 2002-06-27
DE10230085A DE10230085A1 (en) 2002-06-27 2002-06-27 Electrical circuit breaker with a switching contact arrangement having a current loop

Publications (2)

Publication Number Publication Date
EP1376640A2 EP1376640A2 (en) 2004-01-02
EP1376640A3 true EP1376640A3 (en) 2005-04-13

Family

ID=29716753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03090135A Withdrawn EP1376640A3 (en) 2002-06-27 2003-05-05 Electrical circuit breaker with a switch contact arrangement with a current loop

Country Status (3)

Country Link
US (1) US7102471B2 (en)
EP (1) EP1376640A3 (en)
DE (1) DE10230085A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015219041B4 (en) * 2015-10-01 2018-10-18 Siemens Aktiengesellschaft Double roller lock for a trigger mechanism for a switching device
KR20170077659A (en) * 2015-12-28 2017-07-06 엘에스산전 주식회사 Structure of contacts for air circuit breaker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006637A1 (en) * 1978-07-05 1980-01-09 Fuji Electric Co. Ltd. Multipolar current-limiting circuit breaker
US4853662A (en) * 1986-10-29 1989-08-01 Fuji Electric Co., Ltd. Contactor apparatus
US6184761B1 (en) * 1999-12-20 2001-02-06 General Electric Company Circuit breaker rotary contact arrangement
US20020050878A1 (en) * 1999-11-05 2002-05-02 James Edward Ferree Stationary line bus assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4849590A (en) * 1988-04-01 1989-07-18 Kohler Company Electric switch with counteracting electro-electro-dynamic forces
US6628185B2 (en) * 2001-09-14 2003-09-30 Square D Company Blade assembly for a circuit breaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006637A1 (en) * 1978-07-05 1980-01-09 Fuji Electric Co. Ltd. Multipolar current-limiting circuit breaker
US4853662A (en) * 1986-10-29 1989-08-01 Fuji Electric Co., Ltd. Contactor apparatus
US20020050878A1 (en) * 1999-11-05 2002-05-02 James Edward Ferree Stationary line bus assembly
US6184761B1 (en) * 1999-12-20 2001-02-06 General Electric Company Circuit breaker rotary contact arrangement

Also Published As

Publication number Publication date
DE10230085A1 (en) 2004-01-15
US20040001297A1 (en) 2004-01-01
US7102471B2 (en) 2006-09-05
EP1376640A2 (en) 2004-01-02

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