FR1337384A - Improvements to multi-pole differential winding circuit breakers - Google Patents

Improvements to multi-pole differential winding circuit breakers

Info

Publication number
FR1337384A
FR1337384A FR905499A FR905499A FR1337384A FR 1337384 A FR1337384 A FR 1337384A FR 905499 A FR905499 A FR 905499A FR 905499 A FR905499 A FR 905499A FR 1337384 A FR1337384 A FR 1337384A
Authority
FR
France
Prior art keywords
circuit breakers
winding circuit
differential winding
pole differential
pole
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
FR905499A
Other languages
French (fr)
Inventor
Emile Brunet
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
Priority to FR905499A priority Critical patent/FR1337384A/en
Application granted granted Critical
Publication of FR1337384A publication Critical patent/FR1337384A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • H01H2083/146—Provisions for avoiding disadvantages of having asymetrical primaries, e.g. induction of a magnetic field even by zero difference current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
FR905499A 1962-07-30 1962-07-30 Improvements to multi-pole differential winding circuit breakers Expired FR1337384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR905499A FR1337384A (en) 1962-07-30 1962-07-30 Improvements to multi-pole differential winding circuit breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR905499A FR1337384A (en) 1962-07-30 1962-07-30 Improvements to multi-pole differential winding circuit breakers

Publications (1)

Publication Number Publication Date
FR1337384A true FR1337384A (en) 1963-09-13

Family

ID=8784204

Family Applications (1)

Application Number Title Priority Date Filing Date
FR905499A Expired FR1337384A (en) 1962-07-30 1962-07-30 Improvements to multi-pole differential winding circuit breakers

Country Status (1)

Country Link
FR (1) FR1337384A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2100549A1 (en) * 1970-05-26 1972-03-24 Seine Ind Electr
FR2376504A1 (en) * 1976-12-31 1978-07-28 Siemens Ag Current transformer in fault detecting circuit - has annular cylindrical core with looped insulated conductors
EP0615269A1 (en) * 1993-03-09 1994-09-14 Hager Electro S.A. Device for detecting current unbalance, in particular for differential circuit breaker

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2100549A1 (en) * 1970-05-26 1972-03-24 Seine Ind Electr
FR2376504A1 (en) * 1976-12-31 1978-07-28 Siemens Ag Current transformer in fault detecting circuit - has annular cylindrical core with looped insulated conductors
EP0615269A1 (en) * 1993-03-09 1994-09-14 Hager Electro S.A. Device for detecting current unbalance, in particular for differential circuit breaker
FR2702605A1 (en) * 1993-03-09 1994-09-16 Hager Electro Current imbalance detection device, in particular for differential switch.

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