Proposta de Nova Topologia de Conexão para Transformadores de Corrente Visando a Otimização da Exatidão

Abstract

The main objective of this work is to evaluate the factors that cause an increase in the error in current transformers used in measurement and protection, as pointed out in the specialized literature, and to propose a new connection topology and treatment of the measured data using computational compensation methods with the purpose of optimizing the accuracy of current transformers. In this way, it is possible to reduce billing losses in the system and enable protection relays to perform power quality measurements with the greatest possible reliability. The experimental results present in this work validate the proposed theory and suggest that this measurement methodology has the potential for an important innovation in this topic.