ListarRevista Politechnê por tema "Impedance (Electricity)"

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    • Fallas de alta impedancia en los sistemas de distribución eléctrica 

      Ramos Rodríguez, Ricardo L.; Zapata Acosta, Mary C. (Polytechnic University of Puerto Rico, 1992-06)
      Most of the time, a fault in an electrical power system presents a much higher current than the current that flows in the system during. normal conditions. This fault current is harmful for the components of the system ...

    • Programa para verificar la calibracion de un rele de proteccion por impedancia 

      Delgado, Benjamín; Morales, Asdrúbal (Polytechnic University of Puerto Rico, 1992-12)
      This article describes the preparation of a testing file to verify the calibration of an impedance protection relay using the Mastertest program. With this work we present an alternative to the ones now used for relay ...