CH575673A5 - - Google Patents

Info

Publication number
CH575673A5
CH575673A5 CH1460673A CH1460673A CH575673A5 CH 575673 A5 CH575673 A5 CH 575673A5 CH 1460673 A CH1460673 A CH 1460673A CH 1460673 A CH1460673 A CH 1460673A CH 575673 A5 CH575673 A5 CH 575673A5
Authority
CH
Switzerland
Application number
CH1460673A
Original Assignee
Controle Equip Indle
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 Controle Equip Indle filed Critical Controle Equip Indle
Publication of CH575673A5 publication Critical patent/CH575673A5/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
    • H02H3/382—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Networks Using Active Elements (AREA)
CH1460673A 1972-10-17 1973-10-15 CH575673A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7236705A FR2203080B1 (en) 1972-10-17 1972-10-17

Publications (1)

Publication Number Publication Date
CH575673A5 true CH575673A5 (en) 1976-05-14

Family

ID=9105755

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1460673A CH575673A5 (en) 1972-10-17 1973-10-15

Country Status (6)

Country Link
CH (1) CH575673A5 (en)
DE (1) DE2351872C3 (en)
ES (1) ES419728A1 (en)
FR (1) FR2203080B1 (en)
GB (1) GB1444774A (en)
SE (1) SE406998B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH600644A5 (en) * 1975-06-19 1978-06-30 Bbc Brown Boveri & Cie
CH613570A5 (en) * 1976-03-25 1979-09-28 Bbc Brown Boveri & Cie
CH618294A5 (en) * 1977-09-06 1980-07-15 Bbc Brown Boveri & Cie
SE418035B (en) * 1979-08-30 1981-04-27 Asea Ab IMPEDANCING DEVICE IN IMPEDANCE PROTECTION
AT386702B (en) * 1985-03-07 1988-10-10 Elin Union Ag Electronic overcurrent relay with phase-angle-dependent sensitivity switching
US4667186A (en) * 1985-03-13 1987-05-19 Raychem Corporation Phase difference fault detector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1096279A (en) * 1964-04-28 1967-12-20 English Electric Co Ltd Protective relays
DE1302257C2 (en) * 1964-06-19 1973-01-25 Hartmann & Braun Ag MEASUREMENT CIRCUIT FOR ELECTRONIC RELAYS
FR1566498A (en) * 1968-03-11 1969-05-09

Also Published As

Publication number Publication date
DE2351872C3 (en) 1981-02-12
GB1444774A (en) 1976-08-04
DE2351872B2 (en) 1980-06-04
FR2203080A1 (en) 1974-05-10
FR2203080B1 (en) 1977-08-26
SE406998B (en) 1979-03-05
ES419728A1 (en) 1976-03-01
DE2351872A1 (en) 1974-04-18

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Legal Events

Date Code Title Description
PL Patent ceased