GB785966A - Improvements in or relating to electric circuit breakers - Google Patents

Improvements in or relating to electric circuit breakers

Info

Publication number
GB785966A
GB785966A GB7432/56A GB743256A GB785966A GB 785966 A GB785966 A GB 785966A GB 7432/56 A GB7432/56 A GB 7432/56A GB 743256 A GB743256 A GB 743256A GB 785966 A GB785966 A GB 785966A
Authority
GB
United Kingdom
Prior art keywords
loop
circuit
current
breaker
march
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
GB7432/56A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB785966A publication Critical patent/GB785966A/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
    • 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

Landscapes

  • Breakers (AREA)

Abstract

785,966. Automatic circuit-breakers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 9, 1956 [March 14, 1955], No. 7432/56. Class 38 (5). In a circuit-breaker having a current carrying loop of which the movable contact forms part, the magnetic flux due to current in said loop produces a force opposing closing movement of the contact member, which force is reduced by a flux produced by a rigid conductive non- magnetic member in inductive relation to the loop. The invention is described as applied to a circuit-breaker having a closing and tripping mechanism similar to that described in Specification 682,564. The loop comprises terminal conductors 27, 43 and the movable contact member 35, a bar 165 of copper being arranged within the loop. It is stated that this bar causes the flux of the loop to lag 15 degrees behind the current.
GB7432/56A 1955-03-14 1956-03-09 Improvements in or relating to electric circuit breakers Expired GB785966A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US785966XA 1955-03-14 1955-03-14

Publications (1)

Publication Number Publication Date
GB785966A true GB785966A (en) 1957-11-06

Family

ID=22145054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7432/56A Expired GB785966A (en) 1955-03-14 1956-03-09 Improvements in or relating to electric circuit breakers

Country Status (4)

Country Link
BE (1) BE545973A (en)
DE (1) DE1040666B (en)
FR (1) FR1148876A (en)
GB (1) GB785966A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255636A (en) * 1976-12-30 1981-03-10 Westinghouse Electric Corp. Circuit breaker with current carrying conductor system utilizing eddy current repulsion

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE573182C (en) * 1926-05-11 1933-03-29 Bbc Brown Boveri & Cie Overcurrent cut-out
NL138205B (en) * 1943-07-13

Also Published As

Publication number Publication date
BE545973A (en)
FR1148876A (en) 1957-12-17
DE1040666B (en) 1958-10-09

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