Electrical Assessment of 10 MVA, 69 kV/ 13.2 kV Mabiga Substation Upgrading to 20 MVA, 69 kV/ 13.2 kV at Mabiga, Mabalacat City, Philippines

Abstract

This technical report documents the electrical assessment and upgrading of the Mabiga Substation from 10 MVA to 20 MVA, 69 kV/ 13.2 kV, in Mabalacat City, Philippines. The study focuses on ensuring safety, reliability, and cost-effectiveness while addressing the increasing power demand of the area. Significant electrical calculations, including load forecasting, power system modeling, voltage drop, short circuit analysis, and protection coordination, are presented. Results indicate that a 20 MVA transformer is the optimal expansion plan considering a 30-year lifespan. The proposed project addresses overloading issues and improves power quality for the member-consumers of Pampanga II Electric Cooperative (PELCO II).