ACTUAL MEASUREMENTS OF APPARENT POWER AND ITS COMPONENTS AT LOW-VOLTAGE AND MEDIUM-VOLTAGE BUSES

This paper presents values of apparent, active and non-active powers measured in five single-phase and in six three-phase systems. The power values reported were measured directly or indirectly (computed). Different resolutions for the single-phase apparent power are observed. For the three-phase systems, the unbalance power and the effective apparent power are central to the presented measurements. This report is meant to help put in a practical context different definitions of non-active powers, especially from the perspective of the utilities engineer.