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Reliability of Electrical Service in Medium Voltage Aerial Distribution Networks, Applying an Automatic Restoration Scheme Through Reclosers (Loop Automation)

Abstract:

This article describes the technical proposal for a loop automation scheme, with distributed intelligence, between two medium voltage three-phase distribution networks 13.8kV, which serve a part of the cantons Daule and Samborond'n of the Corporación Nacional de Electricidad Unidad de Negocio Guayas Los Ríos, CNEL EP GLR; in order to improve the reliability of the electrical service, isolating faults efficiently and reducing interruption times, through the installation of automatic reclosers at specific points of each feeder (Feeder, Mid-Point, Tie-Point), without affecting the operability of the system. At feeder 1, the FMIK index could be reduced from 17 to 14, and the TTIK index from 10.54 to 9.39. At feeder 2, the FMIK index could be reduced from 5 to 2, and the TTIK index from 2.55 to 2.30.