@thesis{thesis, author={Buana Danny and Pratama Putera Rizki}, title ={ANALISIS PENGARUH KETIDAKSEIMBANGAN BEBAN TERHADAP EFISIENSI TRANSFORMATOR DISTRIBUSI PT. PLN (PERSERO) ULP BINTAN CENTER}, year={2021}, url={http://156.67.221.169/3781/}, abstract={In the distribution of electric power, although the load served by the transformer is attempted to be balanced, which in each phase flows the same amount of current, in practice it allows load imbalances to occur. Load imbalance occurs because the load time is not synchronous and the load is not evenly distributed in each phase. As a result of this load imbalance can cause losses due to the neutral current in the neutral conductor that is produced will also enlarge, so that it will cause a decrease in transformer efficiency, decreased transformer efficiency can cause the life of the transformer to decrease so that it affects the performance of the transformer in distributing electrical energy and also will reduce quality. Based on the results of research that has been analyzed with manual calculations, it is found that the load imbalance when WBP is greater at night, where the value of the highest load imbalance on the RBC-239 Substation Transformer occurs on 22-08-2021 at 29.892% with transformer efficiency and the lowest is on 87.013% at night at 19:00 WIB and the lowest value of load imbalance on the RBC-239 Substation Transformer occurs on 21-08-2021 at 11.859% with the highest transformer efficiency at 96.752% at noon at 10 am :00 WIB} }