FR555572A - Improvements made to switches - Google Patents

Improvements made to switches

Info

Publication number
FR555572A
FR555572A FR555572DA FR555572A FR 555572 A FR555572 A FR 555572A FR 555572D A FR555572D A FR 555572DA FR 555572 A FR555572 A FR 555572A
Authority
FR
France
Prior art keywords
switches
improvements made
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 FR555572A publication Critical patent/FR555572A/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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/10—Adjustable resistors adjustable by mechanical pressure or force
    • H01C10/12—Adjustable resistors adjustable by mechanical pressure or force by changing surface pressure between resistive masses or resistive and conductive masses, e.g. pile type
    • 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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/161—Variable impedances
FR555572D 1921-09-14 1922-08-31 Improvements made to switches Expired FR555572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50048521 US1717260A (en) 1921-09-14 1921-09-14 Circuit interrupter

Publications (1)

Publication Number Publication Date
FR555572A true FR555572A (en) 1923-07-03

Family

ID=10371884

Family Applications (1)

Application Number Title Priority Date Filing Date
FR555572D Expired FR555572A (en) 1921-09-14 1922-08-31 Improvements made to switches

Country Status (3)

Country Link
US (1) US1717260A (en)
FR (1) FR555572A (en)
GB (1) GB191280A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013744B (en) * 1952-12-26 1957-08-14 Ibm Deutschland Resistance to switch off an electrical circuit
DE1024143B (en) * 1954-04-30 1958-02-13 Siemens Ag Arrangement for switching off a direct current circuit
DE1060453B (en) * 1952-05-07 1959-07-02 Norbert Roger Beyrard Electrical switch with electrolyte series resistor

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL60797C (en) * 1944-01-25
US2470628A (en) * 1944-05-24 1949-05-17 Westinghouse Electric Corp Circuit interrupter
US2701831A (en) * 1950-06-27 1955-02-08 British Thomson Houston Co Ltd Electric circuit breaker
US2924752A (en) * 1957-07-12 1960-02-09 Ite Circuit Breaker Ltd Combined circuit breaker and short circuiter
US3192338A (en) * 1962-07-24 1965-06-29 Robert E Haynes Maximum fault current limiting electrical circuit-breaker
US3249810A (en) * 1962-11-20 1966-05-03 Westinghouse Electric Corp Circuit interrupting apparatus
US3764851A (en) * 1972-10-13 1973-10-09 Westinghouse Electric Corp Current limiting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1060453B (en) * 1952-05-07 1959-07-02 Norbert Roger Beyrard Electrical switch with electrolyte series resistor
DE1013744B (en) * 1952-12-26 1957-08-14 Ibm Deutschland Resistance to switch off an electrical circuit
DE1024143B (en) * 1954-04-30 1958-02-13 Siemens Ag Arrangement for switching off a direct current circuit

Also Published As

Publication number Publication date
US1717260A (en) 1929-06-11
GB191280A (en) 1923-01-11

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