Energy quality at distribution system

Nowadays, the problems for energy quality became more important issue for both consumers and the companys that generate, transmit and distribute electricity. Solving the energy quality problems became a serious obligation not only for productivity but also for economical reasons. At first, there is a need for systematical work afterwards energy quality problems should be solved according to the requirements and the collected datas.In this thesis the problems about power quality, harmonics and filtering methods have been explained in detail. There are some conclusions, resulted graphs and explanations as per the measurements that had been done at TEIAS Alcuk Transformer Substation ( that become Foca-1 Feeder feeds the city and Acuk-1 Feeder feeds the industry load ) Additionally, measurement values taken from the secondary winding of transformer located at a radio transitter unit under constant load are presented. Then, in order to analyse a pasif filter and an inductive companzation unit connected in serious simple model is developed and employed using Matlab Codes.Key Words: Energy quality, power quality, harmonics