Pengaruh Manajemen Trafo Distribusi terhadap Rugi-Rugi Daya dan Jatuh Tegangan pada Jaringan Distribusi ULP Rengat Kota

Abstract

Along with the development of technology, there is an increase in the community's need for electric power. This increase in demand has led to load growth, especially on distribution substations. The growth in the amount of load on the distribution transformer will cause overload on the transformer. Overload on this transformer will cause an increase in the temperature of the equipment, which, if allowed to last for a long time, will cause damage to the transformer. In addition to causing damage, the increase in temperature will also have an impact on increasing power losses in the overload transformer and the voltage drop in customers. In this thesis, it uses a greedy approach to relocate overload transformers with underload transformers whose capacity meets the needs of relocation. and for overloaded transformers that do not have a pair to relocate, uprating or adding insert transformers will be carried out. The relocation of this distribution transformer was carried out in the distribution network system of the Rengat Penyulang Munchen Substation. A power flow study was conducted using ETAP 19.0.1 software and obtained the values of power losses and voltage profiles. By comparing the results of power flow studies before and after relocation, a decrease in power losses was obtained from 165.3 kW and 234.5 kVar to 150.9 kW and 222.1 kVar when the RGT025 transformer was uprated. Meanwhile, when the RGT025 transformer was added, the insert transformer obtained a decrease in power losses from 165.3 kW and 234.5 kVar to 143.9 kW and 219.8 kVar. And from the results of the power flow study before and after relocation, it was also obtained that the voltage profiles on the transformer loads RGT025, RGT045, RGT053, RGT257, RGT272, RGT297, and RGT386 improved.