EP0398461A3 - Circuit breaker with an actuating and a locking device for a moving contact - Google Patents

Circuit breaker with an actuating and a locking device for a moving contact Download PDF

Info

Publication number
EP0398461A3
EP0398461A3 EP19900250130 EP90250130A EP0398461A3 EP 0398461 A3 EP0398461 A3 EP 0398461A3 EP 19900250130 EP19900250130 EP 19900250130 EP 90250130 A EP90250130 A EP 90250130A EP 0398461 A3 EP0398461 A3 EP 0398461A3
Authority
EP
European Patent Office
Prior art keywords
coupling member
switch contact
circuit breaker
sliding piece
actuating
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Withdrawn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
EP19900250130
Other languages
German (de)
French (fr)
Other versions
EP0398461A2 (en
Inventor
Donald Ray Boyd
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
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Publication of EP0398461A2 publication Critical patent/EP0398461A2/en
Publication of EP0398461A3 publication Critical patent/EP0398461A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01H77/102—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 special mounting of contact arm, allowing blow-off movement
    • H01H77/104—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 special mounting of contact arm, allowing blow-off movement with a stable blow-off position
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism

Abstract

Ein elektrischer Leistungsschalter besitzt einen feststehenden Schaltkontakt (16) sowie einen bewegbaren Schaltkontakt (12), der mittels eines Kurbelarmes (32) und eines Koppelgliedes (18) relativ zu dem feststehenden Schaltkontakt (16) antreib­ bar ist. Das Koppelglied (18) enthält eine Verklinkungsein­ richtung (24), dessen axiale Stützweite schlagartig verkürzbar ist, wenn durch einen hohen Fehlerstrom auf den bewegbaren Schaltkontakt eine abstoßende Kraft ausgeübt wird. Hierzu weist das Koppelglied (18) einen axialen Führungsschlitz (28) für ein Gleitstück (26) auf, welches mittels abgeschrägter Kanten (64) mit entsprechenden Schrägflächen (62) an dem Gleitstück (26) anliegender Stützglieder (52) zusammenwirkt. Durch Blattfedern (48, 50) wird zwischen zwei Stützgliedern (52) und dem Gleitstück (26) eine Vorspannkraft aufgebracht. Die beschriebene Verklinkungseinrichtung eignet sich insbe­ sondere für strombegrenzend öffnende Niederspannungs-­ Leistungsschalter. An electrical circuit breaker has a fixed switch contact (16) and a movable switch contact (12) which can be driven by means of a crank arm (32) and a coupling member (18) relative to the fixed switch contact (16). The coupling member (18) contains a Verklinkungsein direction (24) whose axial span can be shortened suddenly if a repulsive force is exerted on the movable switching contact by a high fault current. For this purpose, the coupling member (18) has an axial guide slot (28) for a sliding piece (26) which, by means of beveled edges (64), cooperates with corresponding inclined surfaces (62) on supporting members (52) which bear against the sliding piece (26). A leaf spring (48, 50) applies a pretensioning force between two support members (52) and the slide (26). The latching device described is particularly suitable for current-limiting opening low-voltage circuit breakers.

EP19900250130 1989-05-18 1990-05-18 Circuit breaker with an actuating and a locking device for a moving contact Withdrawn EP0398461A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US353589 1989-05-18
US07/353,589 US4998081A (en) 1989-05-18 1989-05-18 Power interrupter with force-sensitive contact latch

Publications (2)

Publication Number Publication Date
EP0398461A2 EP0398461A2 (en) 1990-11-22
EP0398461A3 true EP0398461A3 (en) 1992-02-26

Family

ID=23389770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900250130 Withdrawn EP0398461A3 (en) 1989-05-18 1990-05-18 Circuit breaker with an actuating and a locking device for a moving contact

Country Status (2)

Country Link
US (1) US4998081A (en)
EP (1) EP0398461A3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19910172B4 (en) * 1999-02-24 2006-07-06 Siemens Ag Circuit breaker with current-limiting opening of switching contacts
DE10049728C2 (en) * 2000-09-28 2003-01-02 Siemens Ag Drive train for a movable contact of an electrical switch
DE10054383A1 (en) * 2000-10-27 2002-05-08 Siemens Ag Current-limiting low-voltage circuit breaker
DE10164517B4 (en) * 2001-12-19 2004-02-19 Siemens Ag Current-limiting low-voltage circuit breaker
DE10345660A1 (en) * 2003-09-25 2005-05-12 Siemens Ag Drive train for at least one movable contact of an electrical switch and current-limiting electrical switch with a drive train
ITMI20042234A1 (en) * 2004-11-19 2005-02-19 Abb Service Srl AUTOMATIC SWITCH WITH RELEASE KINEMATISM USED BY MOBILE CONTACT
DE102007011451A1 (en) 2007-03-06 2008-09-11 Siemens Ag Contact lever movement device and electrical switch and method for producing the contact lever movement device
US8476992B2 (en) * 2011-10-07 2013-07-02 Siemens Industry, Inc. Circuit breaker having an unlocking mechanism and methods of operating same
CN105655210B (en) * 2016-03-08 2019-02-12 平高集团有限公司 A kind of breaker and its transmission device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164700A (en) * 1959-04-13 1965-01-05 Ite Circuit Breaker Ltd Current limiting circuit breaker with improved auxiliary toggle mechanism
FR2124380A1 (en) * 1971-02-02 1972-09-22 Sace Spa Costruzioni Ele
EP0021882A1 (en) * 1979-06-07 1981-01-07 HAZEMEYER S.A. Société anonyme dite: Electric current interrupting apparatus of the current limiting type
EP0072285A1 (en) * 1981-08-12 1983-02-16 Telemecanique Opening device for mobile contacts of contactors able to limit short circuit currents

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2442457A1 (en) * 1974-09-05 1976-03-18 Bosch Gmbh Robert Electromagnetic valves for anti-blocking brakes - with profiled press-on contacts to prevent cross connections
FR2402817A1 (en) * 1977-09-09 1979-04-06 Dba NON-RETURN SOLENOID VALVE
US4307752A (en) * 1978-12-26 1981-12-29 Aisin Seiki Kabushiki Kaisha Solenoid actuated valve device
DE2938437A1 (en) * 1979-09-22 1981-04-09 Robert Bosch Gmbh, 7000 Stuttgart PRESSURE CONTROL VALVE UNIT
FR2483683A1 (en) * 1980-05-30 1981-12-04 Telemecanique Electrique CONTACTOR HAVING CIRCUIT BREAKER PROPERTIES
DE3111938A1 (en) * 1981-03-26 1982-10-07 Robert Bosch Gmbh, 7000 Stuttgart ELECTROMAGNET
DE3133285C2 (en) * 1981-08-22 1984-05-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Auto switch
DE3236535A1 (en) * 1982-10-02 1984-04-05 Robert Bosch Gmbh, 7000 Stuttgart CONTROL OR REGULATION SYSTEM
JPS61136071A (en) * 1984-12-01 1986-06-23 Aisin Seiki Co Ltd Solenoid operated valve
DE3701019A1 (en) * 1987-01-15 1988-07-28 Teves Gmbh Alfred Valve block for a hydraulic brake system with slip control
DE3725385A1 (en) * 1987-07-31 1989-02-09 Teves Gmbh Alfred Valve block for a hydraulic brake system with brake slip control
DE3742830C2 (en) * 1987-12-17 1995-11-16 Teves Gmbh Alfred Valve block assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164700A (en) * 1959-04-13 1965-01-05 Ite Circuit Breaker Ltd Current limiting circuit breaker with improved auxiliary toggle mechanism
FR2124380A1 (en) * 1971-02-02 1972-09-22 Sace Spa Costruzioni Ele
EP0021882A1 (en) * 1979-06-07 1981-01-07 HAZEMEYER S.A. Société anonyme dite: Electric current interrupting apparatus of the current limiting type
EP0072285A1 (en) * 1981-08-12 1983-02-16 Telemecanique Opening device for mobile contacts of contactors able to limit short circuit currents

Also Published As

Publication number Publication date
EP0398461A2 (en) 1990-11-22
US4998081A (en) 1991-03-05

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