GB686517A - Contact device for electric circuit breakers - Google Patents

Contact device for electric circuit breakers

Info

Publication number
GB686517A
GB686517A GB20356/51A GB2035651A GB686517A GB 686517 A GB686517 A GB 686517A GB 20356/51 A GB20356/51 A GB 20356/51A GB 2035651 A GB2035651 A GB 2035651A GB 686517 A GB686517 A GB 686517A
Authority
GB
United Kingdom
Prior art keywords
shock
contacts
electric circuit
circuit breakers
contact device
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.)
Expired
Application number
GB20356/51A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB686517A publication Critical patent/GB686517A/en
Expired 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature

Landscapes

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

Abstract

686,517. Shock-proof switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 29, 1951 [Sept. 30, 1950], No. 20356/51. Class 38 (v) In a shock-proof switch wherein the current for each pole passes through two contact pairs in parallel and any shock tending to open one pair will tend to close the other pair, a rotary shaft 5 carries two pairs of contacts 3, 4 adapted to bridge simultaneously fixed contacts 1 and 2 respectively. Contacts 1, 2 are permanently connected by conductors 6, 7 as shown so that current from a lead 8 proceeds in parallel through bridges 3, 4 to a lead 9.
GB20356/51A 1950-09-30 1951-08-29 Contact device for electric circuit breakers Expired GB686517A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE686517X 1950-09-30

Publications (1)

Publication Number Publication Date
GB686517A true GB686517A (en) 1953-01-28

Family

ID=20315065

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20356/51A Expired GB686517A (en) 1950-09-30 1951-08-29 Contact device for electric circuit breakers

Country Status (4)

Country Link
DE (1) DE857226C (en)
FR (1) FR1053949A (en)
GB (1) GB686517A (en)
NL (1) NL83238C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1123015B (en) * 1957-12-06 1962-02-01 Elektro App Werke J W Stalin V Arrangement to avoid contact bruises

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1123015B (en) * 1957-12-06 1962-02-01 Elektro App Werke J W Stalin V Arrangement to avoid contact bruises

Also Published As

Publication number Publication date
NL83238C (en) 1956-06-15
FR1053949A (en) 1954-02-05
DE857226C (en) 1952-11-27

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