Distortion and system apparent power in Macedonian power distribution system

This paper present the calculation of the distortion power based on the apparent power definition and evaluated under nonsinusoidal conditions. According to national and international standards, the nonsinusoidal voltage and current has been measurement at different location in three-phase power distribution system in Macedonia. Based on the measurement results, related power quality indexes the distortion power has been calculated and evaluated it's level. At the end of the paper are made conclusions for the topics discuss.