VINOD KUMAR, P.; MISTRY, K. Application of Directional relay in an Ungrounded Power System to Locate Single Line to Ground Fault. Power Research - A Journal of CPRI, [S. l.], p. 161–170, 2011. Disponível em: https://cprijournal.in/index.php/pr/article/view/938. Acesso em: 4 may. 2024.