GB919798A - Improvements in fluid-blast electric circuit breakers - Google Patents

Improvements in fluid-blast electric circuit breakers

Info

Publication number
GB919798A
GB919798A GB8342/61A GB834261A GB919798A GB 919798 A GB919798 A GB 919798A GB 8342/61 A GB8342/61 A GB 8342/61A GB 834261 A GB834261 A GB 834261A GB 919798 A GB919798 A GB 919798A
Authority
GB
United Kingdom
Prior art keywords
fluid
contact
electrode
blast
gap
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
GB8342/61A
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.)
Rheinmetall Air Defence AG
Maschinenfabrik Oerlikon AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Maschinenfabrik Oerlikon AG
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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG, Maschinenfabrik Oerlikon AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of GB919798A publication Critical patent/GB919798A/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
    • H01H33/92—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 liquid, e.g. oil
    • 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • 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
    • H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
    • H01H33/75—Liquid-break switches, e.g. oil-break

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Circuit Breakers (AREA)

Abstract

919,798. Fluid-blast switches. MASCHINENFABRIK OERLIKON. March 7, 1961 [March 16, 1960], No. 8342/61. Class 38 (5). A fluid-blast switch has concentric insulating tubes 5, 6 defining between them a channel 8 which terminates in a nozzle-like gap 9 adjacent the fixed contacts 13, 14, and a movable contact assembly comprising a central arc-electrode 17 and a coaxial tubular contact 15, this assembly being arranged to produce fluid blasts between the contact 15 and electrode 17, and through the gap 9. In the arrangement shown, a piston 21 is provided at the base of the electrode 7 so that when the moving contact assembly is moved downwardly by an operating rod 16, the fluid below the piston is forced through openings 7 into the channel 8 and out through the gap 9 on to the fixed contacts. Fluid also passes through annular spaces 23 to provide the blast flowing between the electrode 17 and contact 15. In a modified arrangement, Fig. 4 (not shown), the tubular contact 15 is extended to form the operating member and moves over a fixed piston which causes the blast to flow between the electrode 17 and the contact 15. In this arrangement a collar on the outside of the tubular contact 15 acts as a piston to force fluid through the channel 8 and gap 9.
GB8342/61A 1960-03-16 1961-03-07 Improvements in fluid-blast electric circuit breakers Expired GB919798A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH298560A CH380212A (en) 1960-03-16 1960-03-16 Quenching device for circuit breakers with fixed and moving contacts

Publications (1)

Publication Number Publication Date
GB919798A true GB919798A (en) 1963-02-27

Family

ID=4246061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8342/61A Expired GB919798A (en) 1960-03-16 1961-03-07 Improvements in fluid-blast electric circuit breakers

Country Status (4)

Country Link
US (1) US3158723A (en)
CH (1) CH380212A (en)
ES (1) ES265470A1 (en)
GB (1) GB919798A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT236502B (en) * 1962-12-17 1964-10-26 Sprecher & Schuh Ag Compressed gas switch with extinguishing agent flow generated by the switching movement
FR2057344A5 (en) * 1969-08-12 1971-05-21 Merlin Gerin
SE371531B (en) * 1970-04-16 1974-11-18 Magrini Fab Riun Scarpa
CH516868A (en) * 1970-05-22 1971-12-15 Bbc Brown Boveri & Cie Low-liquid circuit breaker
US4139753A (en) * 1976-09-21 1979-02-13 Westinghouse Electric Corp. Puffer-type compressed-gas circuit-interrupter having improved separable contact structure
US4123637A (en) * 1976-12-27 1978-10-31 Siemens-Allis, Inc. High voltage air disconnect switch incorporating a puffer-type load break switch
CH626189A5 (en) * 1978-04-19 1981-10-30 Sprecher & Schuh Ag

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR810720A (en) * 1935-12-12 1937-03-27 Alsthom Cgee Improvements to arc blow switches using insulating liquid jets
US2304529A (en) * 1940-05-15 1942-12-08 Westinghouse Electric & Mfg Co Circuit interrupter
US2365132A (en) * 1941-09-25 1944-12-12 Reyrolle A & Co Ltd Electric circuit breaker of the gas-blast type
BE471741A (en) * 1942-05-30
NL148132C (en) * 1945-07-06
BE473294A (en) * 1946-05-21

Also Published As

Publication number Publication date
ES265470A1 (en) 1961-06-16
US3158723A (en) 1964-11-24
CH380212A (en) 1964-07-31

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