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GB875968A - Improvements in gas-blast electric circuit-breakers - Google Patents

Improvements in gas-blast electric circuit-breakers

Info

Publication number
GB875968A
GB875968A GB39784/59A GB3978459A GB875968A GB 875968 A GB875968 A GB 875968A GB 39784/59 A GB39784/59 A GB 39784/59A GB 3978459 A GB3978459 A GB 3978459A GB 875968 A GB875968 A GB 875968A
Authority
GB
United Kingdom
Prior art keywords
gas
blast
contact
carrying
annular opening
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
GB39784/59A
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 GB875968A publication Critical patent/GB875968A/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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7038—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting tubular gas flow enhancing nozzle

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)

Abstract

875,968. Gas-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Nov. 24, 1959 [Dec. 6, 1958], No. 39784/59. Class 38 (5). The interrupting chamber of a gas-blast circuit-breaker comprises a tubular insulator 1 carrying a hollow fixed contact 2 and mounted at one end of a metal cylinder 5 in which slides a piston 4 biased downwardly by a spring 7 and carrying a hollow contact 3, a fixed arcing contact 6 also being provided. Blast gas is admitted through an annular opening 1a to lift piston 4 and extinguish the arc, an annular opening 9 which communicates with an outlet channel 8 serving to exhaust hot ionized gas from the arcing zone. To prevent undue loss of cool gas, the opening 9 contains a cooling grid 10 which presents a relatively high flow resistance to the cool gas and a relatively low resistance to the hot gas. The grid 10 may comprise a number of concentric closely-spaced tubes or a solid member with axially-drilled holes.
GB39784/59A 1958-12-06 1959-11-24 Improvements in gas-blast electric circuit-breakers Expired GB875968A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1132558 1958-12-06

Publications (1)

Publication Number Publication Date
GB875968A true GB875968A (en) 1961-08-30

Family

ID=20293757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39784/59A Expired GB875968A (en) 1958-12-06 1959-11-24 Improvements in gas-blast electric circuit-breakers

Country Status (5)

Country Link
US (1) US2987596A (en)
CH (1) CH376161A (en)
DE (1) DE1150428B (en)
FR (1) FR1243097A (en)
GB (1) GB875968A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557330A (en) * 1967-03-22 1971-01-19 Westinghouse Electric Corp Downstream piston-type compressed-gas circuit interrupters
JPS52133575A (en) * 1976-05-04 1977-11-09 Hitachi Ltd Buffer gas breaker
CH656976A5 (en) * 1981-06-30 1986-07-31 Bbc Brown Boveri & Cie COMPRESSION PISTON SWITCH.
DE102016226034A1 (en) * 2016-12-22 2018-06-28 Siemens Aktiengesellschaft Electrical switching device
CN112017904B (en) * 2019-05-28 2022-08-12 河南平芝高压开关有限公司 Circuit breaker and its static side tail airflow channel structure

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE588443C (en) * 1928-10-09 1933-11-28 Sigwart Ruppel Dipl Ing Switchgear with compressed gas switch
DE597533C (en) * 1931-07-12 1934-05-26 Aeg Device for converting high voltages by means of a compressed gas blown spark gap
DE644970C (en) * 1931-10-19 1937-05-19 Const Electr De Delle Sa Atel Outlet device for the gases from pressurized gas switches
US2051478A (en) * 1933-04-25 1936-08-18 Weldon O Hampton Arc extinguishing apparatus
DE676353C (en) * 1938-04-26 1939-06-02 Studiengesellschaft Fuer Hochl Compressed gas switch with external blowing
US2293513A (en) * 1939-10-11 1942-08-18 Gen Electric Electric air circuit breaker
US2284842A (en) * 1939-11-06 1942-06-02 Gen Electric Circuit breaking apparatus
NL208615A (en) * 1940-04-15
US2333598A (en) * 1941-01-09 1943-11-02 Westinghouse Electric & Mfg Co Circuit interrupter
DE909216C (en) * 1942-04-18 1954-04-15 Aeg Electric high-voltage switch with arc extinguishing by a flowing pressure medium
US2526387A (en) * 1946-01-24 1950-10-17 Milliken Humphreys Air blast circuit breaker

Also Published As

Publication number Publication date
CH376161A (en) 1964-03-31
DE1150428B (en) 1963-06-20
US2987596A (en) 1961-06-06
FR1243097A (en) 1960-10-07

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