Elaboração de uma metodologia para ensaio de resposta em frequência de transformador de potencial indutivo.

Abstract

Inductive potential transformers are essential equipment in transmission systems and electrical energy distribution, that’s why diagnostics, testing and maintenance are of great interest to companies in this engineering field. The designation of curves such as the study of the relationship between two input alternate signals with frequency variation is represented in graphs, defining the input and output amplitude functions and the angular displacement highlighting the relationship between the amplitudes and the phase difference between the signals of the object in question. In this report it is presented the methodology of frequency response tests applied to inductive potential transformers, where we excited the object under test with several frequencies to realize how this object behaves within a range of interest. However, there still is a lack of specific standardization in terms of the methodology for conducting the frequency response test or the interpretation of test results.