GB741180A - Improvements in or relating to liquid immersed electric circuit breakers - Google Patents

Improvements in or relating to liquid immersed electric circuit breakers

Info

Publication number
GB741180A
GB741180A GB752153A GB752153A GB741180A GB 741180 A GB741180 A GB 741180A GB 752153 A GB752153 A GB 752153A GB 752153 A GB752153 A GB 752153A GB 741180 A GB741180 A GB 741180A
Authority
GB
United Kingdom
Prior art keywords
contacts
pair
assembly
arcing
arcing chambers
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
GB752153A
Inventor
Cedric Harold Flurscheim
David Reginald Davies
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB752153A priority Critical patent/GB741180A/en
Publication of GB741180A publication Critical patent/GB741180A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/04Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/14Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc

Landscapes

  • Breakers (AREA)

Abstract

741,180. Liquid-blast switches. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb 19, 1954 [March 18, 1953], No. 7521/53 Class 38(5) In a liquid blast switch a moving contact assembly 3 comprises a first pair of contacts 9 (one shown) which co-operate in respective arcing chambers 5 with stationary contacts 1. a further pair of contacts 20 in series with the first pair of contacts and arranged in the assembly in a further arcing chamber 18 or respective arcing chambers and a conducting bridging member 23 to interconnect the further pair of contacts. The switch shown. in Figs. 1 and 2 has six "breaks" and has a moving contact assembly 3 with parallel spaced insulating boards 4 carried on and movable with an operating rod 2. Arcing chambers 5 housed between the boards 4 each contain one contact of the first pair of contacts, i.e. a pivoted contact 9 biased upwardly by a spring 13; A further arcing chamber 18 extends transversely of the boards 4 on each side of the rod 2 and houses a pair of stud contacts 20 and a bridging member 23. Each member 23 is provided with pivoted spring-biased contact fingers 24, is carried on a plunger 29 and is upwardly biased by spring 33. When the assembly 3 is moved upwards to close the switch, as the stationary contacts 1 enter their respective arcing chambers 5, the plungers 29 come into engagement with a fixed member 35 so that the upward movement of the bridging member 23 is arrested and as the upward movement of the assembly continues, the contacts 20 are brought into engagement with the contact fingers 24. In a modified arrangement, Figs. 5 and 6 (not shown), the arcing chambers 5 are fixed around the stationary contacts and two or three further arcing chambers in the 'assembly (as 18) extend parallel to. a single supporting board.
GB752153A 1953-03-18 1953-03-18 Improvements in or relating to liquid immersed electric circuit breakers Expired GB741180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB752153A GB741180A (en) 1953-03-18 1953-03-18 Improvements in or relating to liquid immersed electric circuit breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB752153A GB741180A (en) 1953-03-18 1953-03-18 Improvements in or relating to liquid immersed electric circuit breakers

Publications (1)

Publication Number Publication Date
GB741180A true GB741180A (en) 1955-11-30

Family

ID=9834717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB752153A Expired GB741180A (en) 1953-03-18 1953-03-18 Improvements in or relating to liquid immersed electric circuit breakers

Country Status (1)

Country Link
GB (1) GB741180A (en)

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