Abstract

HERRERACASANOVA, Reinier  and  MARRERORODRIGUEZ, Lester Julio. Characterization of Short-Duration Voltage Variations on distribution networks. Energética [online]. 2019, vol.40, n.2, pp.94-102. ISSN 1815-5901.

Over the last years it has been producing an accelerated introduction of advanced digital technology devices in the residential, commercial and industrial sectors, which has brought a better performance of process and quality of human life, but, at the same time, it has affected the electric power quality. These sectors obtain the electric energy from distribution networks, so it is essential to check them systematically to avoid high monetary losses. In this paper, the characterization of the behavior of power quality discrete parameters is done, specifically the case of sags and swells. To achieve that, a set of statistical techniques and the tolerance curves are employed. These methods are applied to the measurements at the 1200 node placed in Sagua La Grande municipality, in Villa Clara province. The results show the presence of dangerous voltage variations for sensible equipment.

Keywords : Short-Duration Voltage Variations; power quality; distribution networks; tolerance curves.

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