ES473457A1 - Mejoras introducidas en los sistemas de protecciones diferenciales de transformadores. - Google Patents

Mejoras introducidas en los sistemas de protecciones diferenciales de transformadores.

Info

Publication number
ES473457A1
ES473457A1 ES473457A ES473457A ES473457A1 ES 473457 A1 ES473457 A1 ES 473457A1 ES 473457 A ES473457 A ES 473457A ES 473457 A ES473457 A ES 473457A ES 473457 A1 ES473457 A1 ES 473457A1
Authority
ES
Spain
Prior art keywords
output
transformer
circuits
transformer differential
safety systems
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
ES473457A
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.)
Arteche Instrumentacion y Sistemas Electronicos SA
Original Assignee
Arteche Instrumentacion y Sistemas Electronicos 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 Arteche Instrumentacion y Sistemas Electronicos SA filed Critical Arteche Instrumentacion y Sistemas Electronicos SA
Priority to ES473457A priority Critical patent/ES473457A1/es
Priority to JP1596079A priority patent/JPS5543991A/ja
Publication of ES473457A1 publication Critical patent/ES473457A1/es
Priority to IT68032/79A priority patent/IT1165676B/it
Priority to EP79301871A priority patent/EP0009365A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • H02H7/045—Differential protection of transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Transformers (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

Mejoras introducidas en los sistemas de protecciones diferenciales de transformadores, caracterizadas porque la base del mismo es realizar el cómputo diferencial entre la potencia activa que entra y sale del transformador empleando para ello elementos convertidores de medida de potencia activa en número de uno por cada fase y devanado, así como elementos sumadores asociados que reuniendo lo valores de los elementos de medida, calculan el valor de la Potencia activa diferencial y un elemento comparador que recibe la señal de la Potencia activa diferencial y produce el disparo sí su valor sobrepasa el módulo preestablecido; consiguiéndose con ello que el sistema no sea afectado por la relación de transformación.
ES473457A 1978-09-18 1978-09-18 Mejoras introducidas en los sistemas de protecciones diferenciales de transformadores. Expired ES473457A1 (es)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES473457A ES473457A1 (es) 1978-09-18 1978-09-18 Mejoras introducidas en los sistemas de protecciones diferenciales de transformadores.
JP1596079A JPS5543991A (en) 1978-09-18 1979-02-14 Transformer differential safety system
IT68032/79A IT1165676B (it) 1978-09-18 1979-05-15 Perfezionamenti relativi ai sistemi di protezione differenziale dei trasformatori
EP79301871A EP0009365A1 (en) 1978-09-18 1979-09-12 Transformer differential safety systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES473457A ES473457A1 (es) 1978-09-18 1978-09-18 Mejoras introducidas en los sistemas de protecciones diferenciales de transformadores.

Publications (1)

Publication Number Publication Date
ES473457A1 true ES473457A1 (es) 1979-05-01

Family

ID=8476784

Family Applications (1)

Application Number Title Priority Date Filing Date
ES473457A Expired ES473457A1 (es) 1978-09-18 1978-09-18 Mejoras introducidas en los sistemas de protecciones diferenciales de transformadores.

Country Status (4)

Country Link
EP (1) EP0009365A1 (es)
JP (1) JPS5543991A (es)
ES (1) ES473457A1 (es)
IT (1) IT1165676B (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3840887A1 (de) * 1988-12-05 1990-06-07 Asea Brown Boveri Verfahren zum schutz eines transformators und vorrichtung zur durchfuehrung des verfahrens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU468253B2 (en) * 1971-09-24 1976-01-08 Unisearch Limited Improved protection of transformers
GB1400054A (en) * 1971-09-24 1975-07-16 Unisearch Ltd Protection of transformers
AT328537B (de) * 1972-05-12 1976-03-25 Elin Union Ag Differentialschutzeinrichtung
US3793559A (en) * 1972-08-10 1974-02-19 Westinghouse Electric Corp Transformer apparatus and monitoring system
US3832600A (en) * 1973-05-17 1974-08-27 Westinghouse Electric Corp Transformer internal fault detector
JPS5268940A (en) * 1975-12-05 1977-06-08 Toshiba Corp Relay for protection of transformer

Also Published As

Publication number Publication date
EP0009365A1 (en) 1980-04-02
IT1165676B (it) 1987-04-22
IT7968032A0 (it) 1979-05-15
JPS5543991A (en) 1980-03-28

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