FR702873A - Improvements to electrical circuit breaking systems - Google Patents

Improvements to electrical circuit breaking systems

Info

Publication number
FR702873A
FR702873A FR702873DA FR702873A FR 702873 A FR702873 A FR 702873A FR 702873D A FR702873D A FR 702873DA FR 702873 A FR702873 A FR 702873A
Authority
FR
France
Prior art keywords
electrical circuit
circuit breaking
breaking systems
systems
electrical
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)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR702873A publication Critical patent/FR702873A/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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/668—Means for obtaining or monitoring the vacuum
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/668—Means for obtaining or monitoring the vacuum
    • H01H33/6683—Means for obtaining or monitoring the vacuum by gettering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
FR702873D 1928-05-19 1929-05-17 Improvements to electrical circuit breaking systems Expired FR702873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US279156A US1733904A (en) 1928-05-19 1928-05-19 Circuit-interrupting system

Publications (1)

Publication Number Publication Date
FR702873A true FR702873A (en) 1931-04-18

Family

ID=23067874

Family Applications (1)

Application Number Title Priority Date Filing Date
FR702873D Expired FR702873A (en) 1928-05-19 1929-05-17 Improvements to electrical circuit breaking systems

Country Status (5)

Country Link
US (1) US1733904A (en)
BE (1) BE360745A (en)
DE (1) DE529303C (en)
FR (1) FR702873A (en)
GB (1) GB312085A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793328A (en) * 1953-12-14 1957-05-21 Cutler Hammer Inc Motor controller for use in explosive and corrosive atmospheres
US3090852A (en) * 1960-02-11 1963-05-21 Gen Electric Gettering arrangement for a vacuum circuit interrupter

Also Published As

Publication number Publication date
US1733904A (en) 1929-10-29
DE529303C (en) 1931-07-11
GB312085A (en) 1930-10-17
BE360745A (en)

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