CA973598A - Blast nozzle units with radial holes for self-blasting compressed gas electric circuit-breakers - Google Patents

Blast nozzle units with radial holes for self-blasting compressed gas electric circuit-breakers

Info

Publication number
CA973598A
CA973598A CA148,239A CA148239A CA973598A CA 973598 A CA973598 A CA 973598A CA 148239 A CA148239 A CA 148239A CA 973598 A CA973598 A CA 973598A
Authority
CA
Canada
Prior art keywords
breakers
self
electric circuit
compressed gas
radial holes
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
CA148,239A
Other versions
CA148239S (en
Inventor
Benito J. Calvino Y Teijeiro
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
Application granted granted Critical
Publication of CA973598A publication Critical patent/CA973598A/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
CA148,239A 1971-07-30 1972-07-28 Blast nozzle units with radial holes for self-blasting compressed gas electric circuit-breakers Expired CA973598A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA973598A true CA973598A (en) 1975-08-26

Family

ID=11220694

Family Applications (1)

Application Number Title Priority Date Filing Date
CA148,239A Expired CA973598A (en) 1971-07-30 1972-07-28 Blast nozzle units with radial holes for self-blasting compressed gas electric circuit-breakers

Country Status (11)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH648689A5 (en) * 1979-08-15 1985-03-29 Bbc Brown Boveri & Cie CIRCUIT BREAKER.
CA1243342A (en) * 1983-08-24 1988-10-18 Fumihiro Endo Gas-insulated circuit breaker
JPS61188825A (en) * 1985-02-15 1986-08-22 株式会社日立製作所 Buffer type gas breaker
JP2771305B2 (en) * 1990-03-13 1998-07-02 株式会社日立製作所 Gas circuit breaker
DE10156535C1 (en) * 2001-11-14 2003-06-26 Siemens Ag breakers
EP2415060B1 (en) * 2009-03-30 2017-07-26 ABB Research Ltd. Circuit breaker
CN106841573A (en) * 2017-04-12 2017-06-13 中铁西北科学研究院有限公司 A kind of debris flows simulation experimental rig and test method

Also Published As

Publication number Publication date
FR2148031B1 (en) 1977-06-17
DE2236566A1 (en) 1973-02-08
CH546476A (en) 1974-02-28
FR2148031A1 (en) 1973-03-11
NO134274B (en) 1976-05-31
GB1400523A (en) 1975-07-16
BE786948A (en) 1973-01-29
US3816684A (en) 1974-06-11
SE372652B (en) 1974-12-23
BR7205080D0 (en) 1973-06-28
NO134274C (en) 1976-09-08
ES405375A1 (en) 1975-07-16

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