U ovom radu je opisan rad i analiza energetskih gubitaka distributivne transformatorske stanice. Polazeći od planiranja izgradnje trafostanice, osnovnih dijelova i njihovih funkcija. Kao osnovni element distribucijske trafostanice smatramo energetski transformator, koji je u ovom radu opisan i analiziran kroz nekoliko poglavlja. Ukupnu analizu i kratke proračune pokazali smo kroz par kratkih primjera zadataka, kroz koje možemo vidjeti kako izabrati najpovoljniji i najkorisniji energetski transformator za različita opterećenja na koje je priključen.

This paper describes operation and analysis of energy losses in substations. Starting from planning the construction of the substation, main components and their functions. Power transformer is considered essential element of the distribution substation, which is described and discussed in several chapters of this work. The overall analysis and short calculations were showed in a few brief examples of tasks, through which we can see how to select the best and most useful power transformer for different loads to which it is connected.