BE635769A - - Google Patents

Info

Publication number
BE635769A
BE635769A BE635769DA BE635769A BE 635769 A BE635769 A BE 635769A BE 635769D A BE635769D A BE 635769DA BE 635769 A BE635769 A BE 635769A
Authority
BE
Belgium
Prior art keywords
transistor
relay
high frequency
frequency
transformer
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE635769A publication Critical patent/BE635769A/fr

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26Emergency 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
    • H02H3/32Emergency 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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/34Emergency 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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
    • H02H3/347Emergency 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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system using summation current transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
BE635769D BE635769A (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
BE635769A true BE635769A (enrdf_load_stackoverflow)

Family

ID=202120

Family Applications (1)

Application Number Title Priority Date Filing Date
BE635769D BE635769A (enrdf_load_stackoverflow)

Country Status (1)

Country Link
BE (1) BE635769A (enrdf_load_stackoverflow)

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