ES479391A1 - Perfeccionamientos en dispositivos de proteccion diferencial de una instalacion electrica contra corriente de defecto a tierra. - Google Patents

Perfeccionamientos en dispositivos de proteccion diferencial de una instalacion electrica contra corriente de defecto a tierra.

Info

Publication number
ES479391A1
ES479391A1 ES479391A ES479391A ES479391A1 ES 479391 A1 ES479391 A1 ES 479391A1 ES 479391 A ES479391 A ES 479391A ES 479391 A ES479391 A ES 479391A ES 479391 A1 ES479391 A1 ES 479391A1
Authority
ES
Spain
Prior art keywords
protection device
fault current
current protection
earth fault
transformer
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
ES479391A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe dAppareillage Electrique SAPAREL SA
Original Assignee
Societe dAppareillage Electrique SAPAREL SA
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 Societe dAppareillage Electrique SAPAREL SA filed Critical Societe dAppareillage Electrique SAPAREL SA
Publication of ES479391A1 publication Critical patent/ES479391A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02H3/32—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/332—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means responsive to dc component in the fault current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Thermistors And Varistors (AREA)
  • Protection Of Transformers (AREA)

Abstract

Perfeccionamientos en dispositivos de protección diferencial de una instalación eléctrica contra las corrientes de defecto a tierra, del tipo que comprende un transformador de intensidad provisto de un arrollamiento secundario sobre el que se recoge una señal de defecto destinada a controlar el disparo de un relé de corte por mediación de un circuito de amplificación, caracterizados porque el circuito de amplificación comprende un circuito de conformación de la señal recogida, constituido por un filtro activo acoplado sobre un frecuencia pasante y que proporciona una señal de forma sensiblemente sinusoidal a pesar de la alteración de las señales obtenidos en el secundario, provocada esta alteración por la superposición de componentes continuas a las corrientes de defecto primarias y la superposición de las corrientes parásitas.
ES479391A 1978-04-07 1979-04-06 Perfeccionamientos en dispositivos de proteccion diferencial de una instalacion electrica contra corriente de defecto a tierra. Expired ES479391A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7810478A FR2422276A1 (fr) 1978-04-07 1978-04-07 Dispositif de protection contre les courants de defaut a la terre

Publications (1)

Publication Number Publication Date
ES479391A1 true ES479391A1 (es) 1980-01-01

Family

ID=9206878

Family Applications (1)

Application Number Title Priority Date Filing Date
ES479391A Expired ES479391A1 (es) 1978-04-07 1979-04-06 Perfeccionamientos en dispositivos de proteccion diferencial de una instalacion electrica contra corriente de defecto a tierra.

Country Status (9)

Country Link
AR (1) AR218368A1 (es)
BR (1) BR7902016A (es)
DE (1) DE2913096A1 (es)
ES (1) ES479391A1 (es)
FR (1) FR2422276A1 (es)
GB (1) GB2018534A (es)
IT (1) IT1119057B (es)
PT (1) PT69436A (es)
ZA (1) ZA791625B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2481851A1 (fr) * 1980-04-30 1981-11-06 Merlin Gerin Dispositif de protection differentielle sensible a un courant unidirectionnel
DE19702371A1 (de) * 1997-01-23 1998-07-30 Siemens Ag Fehlerstromschutzeinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525019A (en) * 1967-07-20 1970-08-18 John Lansch Power protection apparatus
FR2081177A6 (es) * 1970-03-13 1971-12-03 Saparel
FR2087452A5 (es) * 1970-05-20 1971-12-31 Seine Ind Electr
CH532855A (de) * 1970-07-23 1973-01-15 Siemens Ag Fehlerstromschutzschalteinrichtung
FR2191319B1 (es) * 1972-06-29 1976-03-12 Radiotechnique Compelec
DE2611674A1 (de) * 1976-03-19 1977-09-22 Guenter Reichensperger Schutzschalter

Also Published As

Publication number Publication date
DE2913096C2 (es) 1989-07-27
AR218368A1 (es) 1980-05-30
DE2913096A1 (de) 1979-10-18
IT1119057B (it) 1986-03-03
FR2422276B1 (es) 1980-09-05
BR7902016A (pt) 1979-11-27
FR2422276A1 (fr) 1979-11-02
IT7967706A0 (it) 1979-04-04
PT69436A (fr) 1979-05-01
ZA791625B (en) 1980-06-25
GB2018534A (en) 1979-10-17

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