@thesis{thesis, author={Fernandes Alex and Lubab Ahmad Taufiqul}, title ={PERMODELAN ANALISA SUSUT UMUR TARFO DISTRIBUSI 20 KV AKIBAT BEBAN LEBIH PADA PENYULANG LEWOLEBA UNIT LAYANAN PELANGGAN LEMBATA DI PT PLN (PERSERO)}, year={2023}, url={http://156.67.221.169/5959/}, abstract={Based on distribution transformer disturbance data at PT PLN (Persero) Lembata Customer Service Unit in 2017 - 2022, PLN experienced 6 disturbances out of a total of 237 distribution transformers. Facing this disturbance, it is necessary to map which aspects/what are the causes of the disturbance, so that it can be followed up immediately to prevent losses. One of the causes of distribution transformer disturbance is at the point of overload which is the benchmark. In this study the focus of the problem is on the loss of life and the determination of the remaining life of the distribution transformer due to overload. The study uses a quantitative methodology by processing existing primary electricity data. The results of this study indicate that there are conditions of damage or abnormalities in distribution transformers as a means of distributing electricity owned by PLN which has a significant impact on the kWh sold by PLN. So that a serious improvement is needed by modeling the age loss of the distribution transformer. The transformer substation LB009 with a peak loading of 20.19% obtained a daily loss of 4.85 hours, so that the remaining life is 8.36 years. The LB017 substation transformer with a peak loading of 24.72% obtained a daily life loss of 5.93 hours, so that the remaining life is 13.79 years. The transformer substation LB022 with a peak loading of 17.05% obtained a daily life loss of 4.09 hours, so that the remaining life is 10.1 years.} }