MIKKA PATRI HUTAURUK; REZA JULIANGGA; HAMDANI. Optimization of the Reliability Index of the 20 kV Distribution Network Through the Implementation of Routine Maintenance Without Outages Using Direct-Contact Substation PDKB at PT PLN (Persero) UP3 Pematang Siantar . International Conference Epicentrum of Economic Global Framework, [S. l.], p. 1600–1613, 2026. Disponível em: https://proceeding.pancabudi.ac.id/index.php/ICEEGLOF/article/view/1742. Acesso em: 23 sep. 2026.