Estudo do comportamento de transformadores de corrente em regime transitório.

Abstract

The main goal of this work is to analyse and comprehend the behaviour of Current Transformers (CTs) in transient state. Current Transformers are designed and constructed to feed measurement and protection tools and electrical energy network control. The main point regarding current transformers modelling is a representation of the magnetic core non-linear behaviour, which presents a saturable behaviour. To achieve a behavioural analysis of the models, computational routines were performed, moreover electromagnetic transient program EMTP-RV software simulation.