GB623921A - Improvements in or relating to air blast electric circuit-breakers - Google Patents

Improvements in or relating to air blast electric circuit-breakers

Info

Publication number
GB623921A
GB623921A GB14285/47A GB1428547A GB623921A GB 623921 A GB623921 A GB 623921A GB 14285/47 A GB14285/47 A GB 14285/47A GB 1428547 A GB1428547 A GB 1428547A GB 623921 A GB623921 A GB 623921A
Authority
GB
United Kingdom
Prior art keywords
air
valve
blast
discs
valves
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
GB14285/47A
Other languages
English (en)
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 GB623921A publication Critical patent/GB623921A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic

Landscapes

  • Circuit Breakers (AREA)
  • Fluid-Driven Valves (AREA)
  • Lift Valve (AREA)
GB14285/47A 1946-06-13 1947-05-29 Improvements in or relating to air blast electric circuit-breakers Expired GB623921A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE256943X 1946-06-13

Publications (1)

Publication Number Publication Date
GB623921A true GB623921A (en) 1949-05-25

Family

ID=20306338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14285/47A Expired GB623921A (en) 1946-06-13 1947-05-29 Improvements in or relating to air blast electric circuit-breakers

Country Status (6)

Country Link
US (1) US2542650A (enrdf_load_stackoverflow)
BE (1) BE473866A (enrdf_load_stackoverflow)
CH (1) CH256943A (enrdf_load_stackoverflow)
DE (1) DE959929C (enrdf_load_stackoverflow)
FR (1) FR947876A (enrdf_load_stackoverflow)
GB (1) GB623921A (enrdf_load_stackoverflow)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1289339A (en) * 1915-08-31 1918-12-31 Westinghouse Electric & Mfg Co Valve-control mechanism.
US1937482A (en) * 1928-09-18 1933-11-28 Ruppel Sigwart Compressed gas switch
US1976445A (en) * 1931-03-25 1934-10-09 Shand & Jurs Company Valve control system
BE413510A (enrdf_load_stackoverflow) * 1935-01-30
BE483191A (enrdf_load_stackoverflow) * 1940-01-11
BE483534A (enrdf_load_stackoverflow) * 1940-01-13
NL115273C (enrdf_load_stackoverflow) * 1943-06-28

Also Published As

Publication number Publication date
FR947876A (fr) 1949-07-15
US2542650A (en) 1951-02-20
CH256943A (de) 1948-09-15
DE959929C (de) 1957-03-14
BE473866A (enrdf_load_stackoverflow)

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