ES390208A1 - Blast nozzle for self-blasting compressed gas electric circuit-breakers - Google Patents

Blast nozzle for self-blasting compressed gas electric circuit-breakers

Info

Publication number
ES390208A1
ES390208A1 ES390208A ES390208A ES390208A1 ES 390208 A1 ES390208 A1 ES 390208A1 ES 390208 A ES390208 A ES 390208A ES 390208 A ES390208 A ES 390208A ES 390208 A1 ES390208 A1 ES 390208A1
Authority
ES
Spain
Prior art keywords
chamber
self
electric circuit
compressed gas
feeding groove
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
ES390208A
Other languages
Spanish (es)
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.)
Magrini Fabbriche Riunite Magrini Scarpa e Magnano MSM SpA
Original Assignee
Magrini Fabbriche Riunite Magrini Scarpa e Magnano MSM SpA
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 Magrini Fabbriche Riunite Magrini Scarpa e Magnano MSM SpA filed Critical Magrini Fabbriche Riunite Magrini Scarpa e Magnano MSM SpA
Publication of ES390208A1 publication Critical patent/ES390208A1/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
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
    • H01H33/703—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle having special gas flow directing elements, e.g. grooves, extensions

Landscapes

  • Circuit Breakers (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Duct Arrangements (AREA)

Abstract

An axial blast breaking chamber for self-blasting compressed gas electric circuit breakers wherein the chamber wall is provided with a plurality of radial holes having an entrance to the inside of said breaker chamber through a ring-like feeding groove coaxial to the longitudinal axis of the chamber. When the contacts are closed the fixed contact, which is in close proximity to the inner wall of the chamber, extends past the feeding groove thereby inhibiting flow of quenching gas. Flow of quenching gas remains inhibited until the chamber and attached movable contact are displaced sufficiently to withdraw the feeding groove and radial holes below the lower end of the fixed contact.
ES390208A 1970-04-16 1971-04-15 Blast nozzle for self-blasting compressed gas electric circuit-breakers Expired ES390208A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2339470 1970-04-16

Publications (1)

Publication Number Publication Date
ES390208A1 true ES390208A1 (en) 1973-06-16

Family

ID=11206694

Family Applications (1)

Application Number Title Priority Date Filing Date
ES390208A Expired ES390208A1 (en) 1970-04-16 1971-04-15 Blast nozzle for self-blasting compressed gas electric circuit-breakers

Country Status (12)

Country Link
US (1) US3670125A (en)
JP (1) JPS5341346B1 (en)
BE (1) BE765779A (en)
BR (1) BR7102243D0 (en)
CA (1) CA938966A (en)
CH (1) CH535487A (en)
DE (1) DE2118166C3 (en)
ES (1) ES390208A1 (en)
FR (1) FR2089725A5 (en)
GB (1) GB1351860A (en)
NO (1) NO129596B (en)
SE (1) SE371531B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH556603A (en) * 1973-03-20 1974-11-29 Bbc Brown Boveri & Cie IN A SWITCHING CHAMBER OF AN ELECTRIC SWITCH, IN PARTICULAR A SF6 COMPRESSED GAS SWITCH, A COMPONENT MADE OF A MATERIAL EMITING GAS UNDER THE EFFECT OF ARC HEAT.
IT985690B (en) * 1973-06-14 1974-12-10 Magrini Fab Riun Scarpa INTERRUPTION CHAMBER FOR SELF-BLOWERING ELECTRIC COMPRESSED GAS SWITCHES
JPS5615818A (en) * 1979-07-19 1981-02-16 Makoto Kusakabe Filter chamber for shelter
CA1243342A (en) * 1983-08-24 1988-10-18 Fumihiro Endo Gas-insulated circuit breaker
DE102009009450A1 (en) * 2009-02-13 2010-08-19 Siemens Aktiengesellschaft Switchgear arrangement
CN102449717B (en) * 2009-03-30 2015-08-19 Abb研究有限公司 Circuit breaker
CN114496615B (en) * 2022-02-14 2023-11-10 平高集团有限公司 Spout connection structure and explosion chamber and circuit breaker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150245A (en) * 1957-09-13 1964-09-22 Westinghouse Electric Corp Liquefied gas circuit interrupters
CH380212A (en) * 1960-03-16 1964-07-31 Oerlikon Maschf Quenching device for circuit breakers with fixed and moving contacts
US3291948A (en) * 1964-08-06 1966-12-13 Westinghouse Electric Corp Orifice structure for compressed gas-circuit interrupter

Also Published As

Publication number Publication date
GB1351860A (en) 1974-05-01
NO129596B (en) 1974-04-29
FR2089725A5 (en) 1972-01-07
CA938966A (en) 1973-12-25
SE371531B (en) 1974-11-18
CH535487A (en) 1973-03-31
US3670125A (en) 1972-06-13
DE2118166A1 (en) 1971-10-28
DE2118166B2 (en) 1980-10-30
BE765779A (en) 1971-10-15
JPS5341346B1 (en) 1978-11-02
BR7102243D0 (en) 1973-06-12
DE2118166C3 (en) 1981-09-17

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