Electric Energy Losses Estimation in Power Distribution System—Tuzla Canton Case Study

The method for estimation of electrical energy losses in distribution system from the place of taking electrical energy from network of transmission company or other suppliers to the place of delivery to the end customers and determination the structure of losses by voltage levels is presented. For part of the distribution network for which the losses are calculated, constant losses, load dependent losses and losses in components of electrodistribution network are taken into account. Distribution losses by voltage levels is made by balancing the total electrical energy losses and losses estimated by method of stationary load flow calculations on medium-voltage (MV) of certain electrodistribution network. The presented method is very practical and by its application the parts of electrodistribution system with increased losses are located with high reliability. Results of analysis of electrical energy losses, which is done by presented method, can be taken as a reliable basis for taking action in the aim of reducing total losses in electrodistribution network. The results of practical analysis are presented for the area of Tuzla Canton—Bosnia and Herzegovina.