FR2148031A1 - - Google Patents

Info

Publication number
FR2148031A1
FR2148031A1 FR7226857A FR7226857A FR2148031A1 FR 2148031 A1 FR2148031 A1 FR 2148031A1 FR 7226857 A FR7226857 A FR 7226857A FR 7226857 A FR7226857 A FR 7226857A FR 2148031 A1 FR2148031 A1 FR 2148031A1
Authority
FR
France
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.)
Granted
Application number
FR7226857A
Other languages
French (fr)
Other versions
FR2148031B1 (enrdf_load_stackoverflow
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 FR2148031A1 publication Critical patent/FR2148031A1/fr
Application granted granted Critical
Publication of FR2148031B1 publication Critical patent/FR2148031B1/fr
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
FR7226857A 1971-07-30 1972-07-26 Expired FR2148031B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2698771 1971-07-30

Publications (2)

Publication Number Publication Date
FR2148031A1 true FR2148031A1 (enrdf_load_stackoverflow) 1973-03-11
FR2148031B1 FR2148031B1 (enrdf_load_stackoverflow) 1977-06-17

Family

ID=11220694

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7226857A Expired FR2148031B1 (enrdf_load_stackoverflow) 1971-07-30 1972-07-26

Country Status (11)

Country Link
US (1) US3816684A (enrdf_load_stackoverflow)
BE (1) BE786948A (enrdf_load_stackoverflow)
BR (1) BR7205080D0 (enrdf_load_stackoverflow)
CA (1) CA973598A (enrdf_load_stackoverflow)
CH (1) CH546476A (enrdf_load_stackoverflow)
DE (1) DE2236566A1 (enrdf_load_stackoverflow)
ES (1) ES405375A1 (enrdf_load_stackoverflow)
FR (1) FR2148031B1 (enrdf_load_stackoverflow)
GB (1) GB1400523A (enrdf_load_stackoverflow)
NO (1) NO134274C (enrdf_load_stackoverflow)
SE (1) SE372652B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0191465A3 (en) * 1985-02-15 1989-02-22 Hitachi, Ltd. A puffer type gas blast circuit breaker

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH648689A5 (de) * 1979-08-15 1985-03-29 Bbc Brown Boveri & Cie Leistungsschalter.
CA1243342A (en) * 1983-08-24 1988-10-18 Fumihiro Endo Gas-insulated circuit breaker
JP2771305B2 (ja) * 1990-03-13 1998-07-02 株式会社日立製作所 ガス遮断器
DE10156535C1 (de) * 2001-11-14 2003-06-26 Siemens Ag Leistungsschalter
EP2415060B1 (en) * 2009-03-30 2017-07-26 ABB Research Ltd. Circuit breaker
CN106841573A (zh) * 2017-04-12 2017-06-13 中铁西北科学研究院有限公司 一种泥石流模拟试验装置及试验方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0191465A3 (en) * 1985-02-15 1989-02-22 Hitachi, Ltd. A puffer type gas blast circuit breaker

Also Published As

Publication number Publication date
CA973598A (en) 1975-08-26
BE786948A (fr) 1973-01-29
US3816684A (en) 1974-06-11
GB1400523A (en) 1975-07-16
BR7205080D0 (pt) 1973-06-28
DE2236566A1 (de) 1973-02-08
NO134274B (enrdf_load_stackoverflow) 1976-05-31
SE372652B (enrdf_load_stackoverflow) 1974-12-23
ES405375A1 (es) 1975-07-16
CH546476A (de) 1974-02-28
NO134274C (enrdf_load_stackoverflow) 1976-09-08
FR2148031B1 (enrdf_load_stackoverflow) 1977-06-17

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