EP0358288A3 - Contact arrangement for a power circuit breaker with auxiliary and main contacts - Google Patents

Contact arrangement for a power circuit breaker with auxiliary and main contacts Download PDF

Info

Publication number
EP0358288A3
EP0358288A3 EP19890250028 EP89250028A EP0358288A3 EP 0358288 A3 EP0358288 A3 EP 0358288A3 EP 19890250028 EP19890250028 EP 19890250028 EP 89250028 A EP89250028 A EP 89250028A EP 0358288 A3 EP0358288 A3 EP 0358288A3
Authority
EP
European Patent Office
Prior art keywords
contacts
main contacts
contact
contact arrangement
circuit breaker
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
EP19890250028
Other languages
German (de)
French (fr)
Other versions
EP0358288A2 (en
EP0358288B1 (en
Inventor
Clifford A. Buxton
David A. Leone
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 EP0358288A2 publication Critical patent/EP0358288A2/en
Publication of EP0358288A3 publication Critical patent/EP0358288A3/en
Application granted granted Critical
Publication of EP0358288B1 publication Critical patent/EP0358288B1/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
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H9/383—Arcing contact pivots relative to the movable contact assembly
    • 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
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet

Abstract

Eine Kontaktanordnung für einen Leistungsschalter weist be­ wegbare und feststehende Hauptkontakte (20, 28) sowie bewegbare und feststehende Hauptkontakte (20, 28) sowie bewegbare und feststehende Vorkontakte (24, 30) auf. Zur beschleunigten Über­ führung an den Hauptkontakten (20, 28) entstehender Schalt­ lichtbögen zu den Vorkontakten (24, 30) weist der die beweg­ baren Kontakte tragende Kontakthebel (18) an seiner kontakt­ gebenden Unterseite eine Vertiefung (32) und im Abstand hiervon an der gegenüberliegenden Oberseite ebenfalls eine Vertiefung (34) auf. Die Vertiefungen (32, 34) bewirken einen Verlauf des Strompfades (36) innerhalb des Kontakthebels (18) in Form einer Schleife derart, daß an den Hauptkontakten (20, 28) entstehende Schaltlichtbögen elektrodynamisch in Richtung der Vorkontakte (24, 30) verschoben werden. Die beschriebene Kontaktanordnung eignet sich beispielsweise für Niederspannungs-Leistungs­ schalter in kompakter Bauart mit Isolierstoffgehäuse. A contact arrangement for a circuit breaker has movable and fixed main contacts (20, 28) and movable and fixed main contacts (20, 28) and movable and fixed pre-contacts (24, 30). For accelerated transfer guidance on the main contacts (20, 28) resulting switching arcs to the preliminary contacts (24, 30) have the moving Contact contacts (18) bearing contacts on its contact giving underside a recess (32) and at a distance from it also a depression on the opposite top (34). The depressions (32, 34) cause a course of the Current paths (36) within the contact lever (18) in the form of a Loop in such a way that arises at the main contacts (20, 28) Switching arcs electrodynamically in the direction of the pre-contacts (24, 30) can be moved. The contact arrangement described is suitable, for example, for low-voltage power Switch in a compact design with an insulating housing.

EP89250028A 1988-09-08 1989-09-07 Contact arrangement for a power circuit breaker with auxiliary and main contacts Expired - Lifetime EP0358288B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US242094 1988-09-08
US07/242,094 US4926018A (en) 1988-09-08 1988-09-08 Moving mains arc movement loop

Publications (3)

Publication Number Publication Date
EP0358288A2 EP0358288A2 (en) 1990-03-14
EP0358288A3 true EP0358288A3 (en) 1991-01-02
EP0358288B1 EP0358288B1 (en) 1995-03-08

Family

ID=22913430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89250028A Expired - Lifetime EP0358288B1 (en) 1988-09-08 1989-09-07 Contact arrangement for a power circuit breaker with auxiliary and main contacts

Country Status (5)

Country Link
US (1) US4926018A (en)
EP (1) EP0358288B1 (en)
JP (1) JPH02117022A (en)
CA (1) CA1333183C (en)
DE (1) DE58909080D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3579261A1 (en) * 2018-06-08 2019-12-11 ABB Schweiz AG High voltage disconnector
US10879023B1 (en) * 2019-06-12 2020-12-29 Landis+Gyr Innovations, Inc. Progressively contacting switch

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1100811A (en) * 1952-10-21 1955-09-26 Voigt & Haeffner Ag Circuit breaker
US2777921A (en) * 1953-06-16 1957-01-15 Merlin Gerin Face-on-face contact pair for circuit breakers
US3192344A (en) * 1961-08-28 1965-06-29 Fed Pacific Electric Co High interrupting capacity circuit breakers with electrodynamic latch release
FR1544437A (en) * 1966-11-16 1968-10-31 Licentia Gmbh Electrical contact device
CH531785A (en) * 1971-04-01 1972-12-15 Westinghouse Electric Corp Electric switch with arc extinguishing device
EP0206882A1 (en) * 1985-06-12 1986-12-30 Merlin Gerin Low voltage circuit breaker with interruption
EP0222684A1 (en) * 1985-11-06 1987-05-20 Siemens Aktiengesellschaft Contact arrangement for low-voltage circuit breakers with main contacts and arcing contacts

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345485A (en) * 1964-12-30 1967-10-03 Fed Pacific Electric Co Circuit breaker having improved arcing contact structure
US3585329A (en) * 1968-01-24 1971-06-15 Westinghouse Electric Corp Circuit interrupter with improved contact structure and arc-runner
JPS6147035A (en) * 1984-08-10 1986-03-07 富士電機株式会社 Contactor structure of circuit breaker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1100811A (en) * 1952-10-21 1955-09-26 Voigt & Haeffner Ag Circuit breaker
US2777921A (en) * 1953-06-16 1957-01-15 Merlin Gerin Face-on-face contact pair for circuit breakers
US3192344A (en) * 1961-08-28 1965-06-29 Fed Pacific Electric Co High interrupting capacity circuit breakers with electrodynamic latch release
FR1544437A (en) * 1966-11-16 1968-10-31 Licentia Gmbh Electrical contact device
CH531785A (en) * 1971-04-01 1972-12-15 Westinghouse Electric Corp Electric switch with arc extinguishing device
EP0206882A1 (en) * 1985-06-12 1986-12-30 Merlin Gerin Low voltage circuit breaker with interruption
EP0222684A1 (en) * 1985-11-06 1987-05-20 Siemens Aktiengesellschaft Contact arrangement for low-voltage circuit breakers with main contacts and arcing contacts

Also Published As

Publication number Publication date
EP0358288A2 (en) 1990-03-14
DE58909080D1 (en) 1995-04-13
CA1333183C (en) 1994-11-22
EP0358288B1 (en) 1995-03-08
US4926018A (en) 1990-05-15
JPH02117022A (en) 1990-05-01

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