GB951409A - Improvements in electric circuit breakers - Google Patents

Improvements in electric circuit breakers

Info

Publication number
GB951409A
GB951409A GB37277/62A GB3727762A GB951409A GB 951409 A GB951409 A GB 951409A GB 37277/62 A GB37277/62 A GB 37277/62A GB 3727762 A GB3727762 A GB 3727762A GB 951409 A GB951409 A GB 951409A
Authority
GB
United Kingdom
Prior art keywords
piston
gas
contact
channel
oct
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
GB37277/62A
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 GB951409A publication Critical patent/GB951409A/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
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas

Landscapes

  • Circuit Breakers (AREA)

Abstract

951,409. Gas blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Oct. 2, 1962 [Oct. 4, 1961], No. 37277/62. Heading H2B. In a gas blast circuit-breaker, the gas-filled (e.g. with sulphur hexafluoride) extinguishing chamber 2 is constructed as a pumping cylinder and contains a piston 7, having a gas channel 12, and a movable contact 6, having a lostmotion coupling with the piston. Actuation of an insulating linkage 8 to open contacts 5, 6 causes contact 6 to move through the piston 7 until a member 9 engages a stop 10, whereupon the contact starts to move the piston, gas being forced through the channel 12 and across the tip of contact 6, now housed fully within the piston, to extinguish the arc. Upon closing member 9 first moves to engage a stop 11, in which position the contact closes off the channel 12, and then the piston is forced back, gas being displaced through a second channel 13 and a non-return valve 14.
GB37277/62A 1961-10-04 1962-10-02 Improvements in electric circuit breakers Expired GB951409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE983961 1961-10-04

Publications (1)

Publication Number Publication Date
GB951409A true GB951409A (en) 1964-03-04

Family

ID=20277624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37277/62A Expired GB951409A (en) 1961-10-04 1962-10-02 Improvements in electric circuit breakers

Country Status (4)

Country Link
US (1) US3218420A (en)
CH (1) CH414794A (en)
DE (1) DE1232238B (en)
GB (1) GB951409A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941959A (en) * 1973-04-30 1976-03-02 Siemens Aktiengesellschaft Vacuum switching apparatus with a drive unit at ground potential

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290469A (en) * 1964-09-30 1966-12-06 Westinghouse Electric Corp Compressed-gas circuit interrupter having cavitation means

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB378471A (en) * 1931-05-09 1932-08-09 Electr & Allied Ind Res Ass Improvements relating to electric switches or circuit breakers
DE664210C (en) * 1932-06-07 1938-08-22 Frida Strauss Geb Ruppel Switch with arc extinguishing by compressed gas
DE658290C (en) * 1934-12-16 1938-04-01 Studiengesellschaft Fuer Hochl Switch with arc extinguishing
DE698808C (en) * 1937-08-21 1940-11-18 Voigt & Haeffner Akt Ges Oil jet switch
DE671326C (en) * 1937-10-16 1939-02-04 Voigt & Haeffner Akt Ges Switch with arc extinguishing by compressed air
US2246171A (en) * 1938-01-10 1941-06-17 Gen Electric Method of and apparatus for interrupting electric arcs
DE910686C (en) * 1941-03-18 1954-05-06 Aeg Electric circuit breakers, in particular compressed gas switches
US2781435A (en) * 1951-03-18 1957-02-12 Heilmann Philipp Arc-extinguishing mechanism for electric switches
NL201631A (en) * 1954-11-25
US2957063A (en) * 1958-03-07 1960-10-18 Westinghouse Electric Corp Pumped-gas circuit interrupter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941959A (en) * 1973-04-30 1976-03-02 Siemens Aktiengesellschaft Vacuum switching apparatus with a drive unit at ground potential

Also Published As

Publication number Publication date
US3218420A (en) 1965-11-16
DE1232238B (en) 1967-01-12
CH414794A (en) 1966-06-15

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