BR7705464A - ELECTRIC POWER SUPPLY PROTECTION DEVICE - Google Patents

ELECTRIC POWER SUPPLY PROTECTION DEVICE

Info

Publication number
BR7705464A
BR7705464A BR7705464A BR7705464A BR7705464A BR 7705464 A BR7705464 A BR 7705464A BR 7705464 A BR7705464 A BR 7705464A BR 7705464 A BR7705464 A BR 7705464A BR 7705464 A BR7705464 A BR 7705464A
Authority
BR
Brazil
Prior art keywords
power supply
electric power
protection device
supply protection
electric
Prior art date
Application number
BR7705464A
Other languages
Portuguese (pt)
Inventor
A Chiffert
Original Assignee
Schlumberger Compteurs
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 Schlumberger Compteurs filed Critical Schlumberger Compteurs
Publication of BR7705464A publication Critical patent/BR7705464A/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0038—Details of emergency protective circuit arrangements concerning the connection of the detecting means, e.g. for reducing their number
    • H02H1/0053—Means for storing the measured quantities during a predetermined time
    • 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
    • H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/28—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
    • 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
    • H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/28—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
    • H02H3/283—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus and taking into account saturation of current transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
BR7705464A 1976-08-31 1977-08-17 ELECTRIC POWER SUPPLY PROTECTION DEVICE BR7705464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7626191A FR2363925A1 (en) 1976-08-31 1976-08-31 Protection circuit for nodal point in power distribution system - isolates node when fault appears and one coupling transformer saturates

Publications (1)

Publication Number Publication Date
BR7705464A true BR7705464A (en) 1978-06-06

Family

ID=9177249

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7705464A BR7705464A (en) 1976-08-31 1977-08-17 ELECTRIC POWER SUPPLY PROTECTION DEVICE

Country Status (2)

Country Link
BR (1) BR7705464A (en)
FR (1) FR2363925A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3167445D1 (en) * 1980-07-28 1985-01-10 Bbc Brown Boveri & Cie Method and apparatus for the differential protection of electrical installations
US4540939A (en) * 1982-04-16 1985-09-10 Lucas Industries Public Limited Company Apparatus for monitoring current levels in an a.c. transmission line
EP0196066B1 (en) * 1985-03-29 1989-11-29 Mitsubishi Denki Kabushiki Kaisha Protective relay
FR2601524B1 (en) * 1986-07-08 1993-09-17 Equip Elect Cie Continen METHOD FOR MONITORING INTERNAL FAULTS OF ELECTRICAL EQUIPMENT AND DEVICE FOR CARRYING OUT SAID METHOD

Also Published As

Publication number Publication date
FR2363925A1 (en) 1978-03-31
FR2363925B1 (en) 1981-09-18

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