Avaliação da correlação entre temperatura dos para-raios de distribuição e corrente de fuga.

Abstract

This work was developed with the objective of identifying the correlation between temperature and leakage current in distribution lightning rods, since these are great indicators of possible defects in these electrical network protection equipment. Monitoring the condition of the lightning rod is essential for greater protection of the electrical network, thus bringing greater reliability to the system. Given this, temperature and leakage current measurements were made in several arrays of the distribution network of campus I of the Federal University of Campina Grande and in a controlled environment, in the High Voltage Laboratory of the Federal University of Campina Grande. In addition, measurements were made with lightning rods from different manufacturers, in order to obtain greater precision in the results. From the analysis of the results obtained, it was possible to establish a correlation between the leakage current and the temperature of the lightning rods.