FR72152E - Further training in circuit breakers - Google Patents

Further training in circuit breakers

Info

Publication number
FR72152E
FR72152E FR72152DA FR72152E FR 72152 E FR72152 E FR 72152E FR 72152D A FR72152D A FR 72152DA FR 72152 E FR72152 E FR 72152E
Authority
FR
France
Prior art keywords
circuit breakers
further training
training
breakers
circuit
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
Other languages
French (fr)
Inventor
Bertrand Level
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 filed Critical
Application granted granted Critical
Publication of FR72152E publication Critical patent/FR72152E/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
    • H01H33/7038—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting tubular gas flow enhancing nozzle
    • H01H33/7046—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting tubular gas flow enhancing nozzle having special gas flow directing elements, e.g. grooves, extensions
FR72152D 1957-08-03 1957-08-03 Further training in circuit breakers Expired FR72152E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR72152T 1957-08-03

Publications (1)

Publication Number Publication Date
FR72152E true FR72152E (en) 1960-08-05

Family

ID=8703647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR72152D Expired FR72152E (en) 1957-08-03 1957-08-03 Further training in circuit breakers

Country Status (1)

Country Link
FR (1) FR72152E (en)

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