Leite , J., M. Azevedo, R. Almeida, I. Abril, R. Nogueira, H. Santana, and W. Valenzuela. “Power Quality Analysis Substation the Voltage Level of 138 KV”. ITEGAM-JETIA, Vol. 2, no. 6, June 2016, https://itegam-jetia.org/journal/index.php/jetia/article/view/167.