Impacts of modifications of standards on the power quality measurement results

Power quality (PQ) standards are needed to achieve coordination between the characteristics of the quality of a network´s power supply and the requirements of the end use equipments. The European standard EN50160 is a reference for the voltage supplied in medium and low voltage European grids. In the recent years, many discussions are done among regulators, network operators and industrial partners to improve this standard. In 2009, the last revision of this standard was approved and a number of modifications are given regarding the supply voltage related parameters. In this paper, a brief analysis is done to find out the implications of those changes to the existing network´s voltage supply characteristics. Five years PQ measurement results of the Dutch networks are used as a reference case and are evaluated based on the new values given in the final draft of the EN50160 standard and the existing Dutch Grid Code.