Evaluation of Electrical Power Losses on Distribution Lines at the Panton Labu Substation

The distribution system in the electric power system functions to distribute electric power from the substation to consumers. During the distribution process along the distribution line, power losses occur. One effective effort to reduce power losses and improve voltage drops in the distribution network is to install a capacitor bank that functions as a source of reactive power to balance inductive loads. This study was conducted through simulation using PT5 feeder data from State Electricity Company/PLN Panton Labu Main Substation. The data was processed and simulated using ETAP 12.6 software. The results of the study showed a significant difference in power losses before and after the installation of capacitors. Before the installation of capacitors, power losses were 6262.25 kW and 3448.51 kVAR. After the installation of capacitors, power losses decreased to 5351.059 kW, while reactive power increased to 11807.81 kVAR. This shows that capacitor banks can significantly reduce power losses and improve voltage stability in the distribution network, thereby improving the overall system efficiency and providing more stable and reliable power to consumers. In addition, reducing voltage drops ensures that consumers receive better and more consistent voltage quality, contributing to the reliability and performance of the power system.