Accuracy and behaviour of Capacitive Voltage Transformers

In this dissertation, characteristics and the main parameters affecting the behavior and accuracy of a Capacitive Voltage Transformer (CVT) were described. In the first and second chapters the main characteristics and the parameters influencing the accuracy and the behavior of a CVT was investigated. At the third chapter the equivalent circuit of CVT including the effect of stray capacitances was simulated by MATLAB Simulink. For a better understanding of the transformer behavior three various disturbances were considered and by comparison the output signals of main circuit and the one with a noise the behavior of CVT was evaluated.