Modelamiento, simulación y sintonización del sistema de protecciones eléctricas de la red de subtransmisión de la provincia de Manabí

Abstract

The modelling of the protection system is of fundamental importance to safeguard the integrity of the constituent elements of an electrical network. This work presents a methodology to be able to perform the tuning, coordination and simulation of the system of protections on the transmission network of the province of Manabí, additionally, it will detail how to perform the tuning of the overcurrent relays (relay 50/51) for the protection of transformers and generators, as well as the methodology used in the tuning of the relay of distance (relay 21) employed In the protection of transmission lines. The purpose of simulating short circuits by means of the "RMS-EMT Simulation" module of the DigSilent Power Factory software is to verify the behavior of the protection system in real time, to validate the coordination of the protection system will be simulated Short circuits in important bars of the transmission network taken as an example, where the performance of the protection relays will be observed and where finally the short circuit current will be extinguished once all the power switches open their contacts while the protection relays are tuned, this operation of the protection switches can be observed by means of current vs simulated time graphs in the DigSilent.