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Abstract(s)
O trabalho desenvolvido nesta dissertação de mestrado apresenta a modelização da rede elétrica da refinaria de Matosinhos e determina os valores máximos da corrente de curtocircuito simétrico trifásico da referida rede. Neste trabalho é ainda realizado uma revisão da literatura referente ao fenómeno curtocircuito, e de um enquadramento da “IEC-60909 - Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents” que servirá de normativo ao nosso cálculo de corrente de curto-circuito trifásico com recurso ao mesmo referido software. É ainda apresentado o desenvolvimento da modelização da rede elétrica da refinaria de Matosinhos, com a respetiva edição e configuração bem como os resultados obtidos para as correntes máximas de curto-circuito trifásico em cada um dos barramentos/quadros da rede elétrica da refinaria.
The work developed in this master's dissertation presents a modeling of the electrical network of the Matosinhos refinery and dimensioning the maximum values of the three-phase symmetrical short-circuit current of the grid base. In this work, a review of the literature referring to the short-circuit phenomenon is also carried out, followed by a framework of the “IEC-60909 - Three-phase a.c. systems - Part 0: Current calculation” which will serve as a standard for our three-phase short-circuit current calculation using the same software. The development of the modeling of the Matosinhos refinery's electrical network is also presented, with the respective edition and configuration, as well as the results obtained for maximum three-phase short-circuit currents in each of the buses/boards of the refinery's electrical network.
The work developed in this master's dissertation presents a modeling of the electrical network of the Matosinhos refinery and dimensioning the maximum values of the three-phase symmetrical short-circuit current of the grid base. In this work, a review of the literature referring to the short-circuit phenomenon is also carried out, followed by a framework of the “IEC-60909 - Three-phase a.c. systems - Part 0: Current calculation” which will serve as a standard for our three-phase short-circuit current calculation using the same software. The development of the modeling of the Matosinhos refinery's electrical network is also presented, with the respective edition and configuration, as well as the results obtained for maximum three-phase short-circuit currents in each of the buses/boards of the refinery's electrical network.
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Keywords
Curto-circuito IEC-60909 ETAP Modelização Rede elétrica Short-circuit Modeling Electrical network