Análise da coordenação da proteção de distância em linhas de transmissão de circuito duplo.

Abstract

This work analyzes the protection coordination of double-circuit transmission lines (TL), considering this type of TL require special attention with regard to the protection, due to mutual inductance inherent in it. It is used teleprotection for distance protection using Permissive Overreaching Transfer Trip (POTT) schemes to accelerate the relay performance, ensuring that in the event of failure of any equipment or part of the network, it does not jeopardize the operation the electrical system. The analysis part of an example based on the Institute of electrical and electronics engineers (IEEE) test system implemented in CAPE software (Computer Aided Protection Engineering), along with all the settings for the digital relay SEL- 311C subjected to fault simulations with the purpose of validating the work.