Analisis Stabilitas Tegangan pada Pembangkit Listrik Tenaga Panas Bumi Sarulla Operation Limited Unit SIL

Abstract

This research aims to determine the influence of generator conditions and load capacity on voltage drop in the distribution network. Additionally, it seeks to identify the relationship between load capacity, voltage drop, and power losses in the distribution network of the Sarulla Geothermal Power Plant Operation Limited Unit SIL. Voltage stability is related to the ability of an electrical power system to maintain voltage at each bus under normal conditions following a disturbance. Voltage stability is influenced by several factors, including system conditions, load capacity, and power losses. The variables in this study consist of variations in system conditions, load capacity, and voltage drop. The variables in this study include variations in system conditions, load capacity, and voltage drop. When the generator is in the OFF condition, a significant voltage drop occurs, decreasing from 11 kV to 9.8 kV. However, when the generator is in the ON condition, there is no voltage drop, and it remains at 11 kV. With four loads connected, the distributed voltage is 9.8 kV; with three loads, it is 10.08 kV; with two loads, it is 10.37 kV, and with one load, the distributed voltage is 10.67 kV. The relationship between load capacity, voltage drop, and power losses is directly proportional. If the installed load capacity on the distribution network increases, the voltage drop alsoincreases, leading to an increase in power losses. Conversely, if the installed load capacity on the distribution network decreases, the voltage drop decreases, resulting in a reduction in power losses.