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IT1212291B - POLARIZED DIFFERENTIAL RELEASE PARTICULARLY FOR SWITCHES AND ELECTRIC CIRCUIT BREAKERS - Google Patents

POLARIZED DIFFERENTIAL RELEASE PARTICULARLY FOR SWITCHES AND ELECTRIC CIRCUIT BREAKERS

Info

Publication number
IT1212291B
IT1212291B IT6948277A IT6948277A IT1212291B IT 1212291 B IT1212291 B IT 1212291B IT 6948277 A IT6948277 A IT 6948277A IT 6948277 A IT6948277 A IT 6948277A IT 1212291 B IT1212291 B IT 1212291B
Authority
IT
Italy
Prior art keywords
switches
electric circuit
circuit breakers
differential release
polarized differential
Prior art date
Application number
IT6948277A
Other languages
Italian (it)
Original Assignee
Parigi A
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 Parigi A filed Critical Parigi A
Application granted granted Critical
Publication of IT1212291B publication Critical patent/IT1212291B/en

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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Protection Of Transformers (AREA)
IT6948277A 1976-11-05 1977-11-04 POLARIZED DIFFERENTIAL RELEASE PARTICULARLY FOR SWITCHES AND ELECTRIC CIRCUIT BREAKERS IT1212291B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7633501A FR2370354A1 (en) 1976-11-05 1976-11-05 Circuit breaker polarised differential trip - has several coils wound on magnetic circuit to generate differential flux of specified direction

Publications (1)

Publication Number Publication Date
IT1212291B true IT1212291B (en) 1989-11-22

Family

ID=9179611

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6948277A IT1212291B (en) 1976-11-05 1977-11-04 POLARIZED DIFFERENTIAL RELEASE PARTICULARLY FOR SWITCHES AND ELECTRIC CIRCUIT BREAKERS

Country Status (4)

Country Link
DE (1) DE2749467A1 (en)
ES (1) ES463849A1 (en)
FR (1) FR2370354A1 (en)
IT (1) IT1212291B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU78012A1 (en) * 1977-08-22 1979-04-09 Gath N FAULT CIRCUIT BREAKER
IT1226237B (en) * 1988-07-08 1990-12-27 Bassani Spa RELAY TYPE ELECTROMAGNETIC ACTUATOR
CN104616937B (en) * 2015-01-15 2017-01-25 中山大学 An arc extinguishing protection device for photovoltaic combiner box

Also Published As

Publication number Publication date
ES463849A1 (en) 1978-06-16
FR2370354A1 (en) 1978-06-02
FR2370354B1 (en) 1980-12-19
DE2749467A1 (en) 1978-05-11

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