GB987076A - Gas blast circuit interrupter - Google Patents

Gas blast circuit interrupter

Info

Publication number
GB987076A
GB987076A GB10304/63A GB1030463A GB987076A GB 987076 A GB987076 A GB 987076A GB 10304/63 A GB10304/63 A GB 10304/63A GB 1030463 A GB1030463 A GB 1030463A GB 987076 A GB987076 A GB 987076A
Authority
GB
United Kingdom
Prior art keywords
gas
passage
arc
accumulator
moving contact
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
GB10304/63A
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of GB987076A publication Critical patent/GB987076A/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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/164—Impedances connected with contacts the impedance being inserted in the circuit by blowing the arc onto an auxiliary electrode
    • 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
    • H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
    • H01H33/77—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor wherein the break is in air at atmospheric pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/31016—Burners in which the gas produced in the wick is not burned instantaneously

Abstract

987,076. Gas blast switches. ETABLISSEMENTS MERLIN & GERIN S.A. March 15, 1963 [March 19, 1962], No. 10304/63. Heading H2B. A circuit braker having a tubular arc passage 17 with gas evolving walls is provided close to the fixed contact 12 with a de-ionizing device 19, comprising closely spaced laminae, disposed at the entry to a gas accumulator 18. The arc releases gas in the passage 17 which is still closed by the moving contact 11 and it therefore flows through the cooler 19 to the accumulator 18. As soon as the moving contact 11 clears the end of passage 17 the gas escapes from the accumulator, again passing through the cooler, and extinguishes the arc. To prevent excessive pressures the passage 17 is apertured at 21. An electrode ring 22 connected by a resistor 23 to the fixed contact limits the restriking voltage. In the modification of Fig. 3 the aperture 21 is closed by a pressure sensitive valve 24 which carries an armature 28 attracted by a magnetic core 29 energized by the arc current and thus prevented from opening under gas pressure until a zero of the A.C. In an alternative form (Fig. 4, not shown) the moving contact is hollow and passage 17 contains a rod of gas envolving material, such as polyoxymethylene. The whole switch may be immersed in SF 6 the gas evolving surfaces being of P.T.F.E.
GB10304/63A 1962-03-19 1963-03-15 Gas blast circuit interrupter Expired GB987076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE490931 1962-03-19

Publications (1)

Publication Number Publication Date
GB987076A true GB987076A (en) 1965-03-24

Family

ID=3844665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10304/63A Expired GB987076A (en) 1962-03-19 1963-03-15 Gas blast circuit interrupter

Country Status (3)

Country Link
CH (1) CH399565A (en)
FR (1) FR1350438A (en)
GB (1) GB987076A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2291601A1 (en) * 1974-11-15 1976-06-11 Alsthom Cgee Arc extinction by aurocompression in circuit breakers - involves use of cylinder type unit which has piston in centre delayed by spring
FR2665020B1 (en) * 1990-07-18 1996-07-19 Alsthom Gec CIRCUIT BREAKER FOR CUTTING HIGH CURRENTS.
FR2709019B1 (en) * 1993-08-12 1995-09-22 Gec Alsthom T & D Sa Circuit breaker with opening resistance insertion by multiple arcs.

Also Published As

Publication number Publication date
FR1350438A (en) 1964-01-24
DE1465983A1 (en) 1969-05-08
CH399565A (en) 1965-09-30
DE1465983B2 (en) 1972-09-28

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