Performance Analysis ofPowerQuality Monitoring Instruments

This papermovesastep into direction ofdefinition ofa test protocol toperform afullmetrological characterization of measurement instrument forpowerquality monitoring. Thistest protocol willinclude notonlytest situations reported inrelated standards, butalsoanarrayofdifferent voltage andcurrent fluctuations -related tocommonPowerQuality issues -thatmay be encountered inactual powersystems. Thisperformance analysis isparticularly interesting because itcanbefoundthat different Powerquality instrument fully meeting characteristics prescribed instandard maystill disagree significantly insome actualmeasurements. Aftera preliminary discussion about technical andtheoretical issues related toperformance analysis of these instruments, animplementation ofahardware test system abletoreproduce acomplete test setispresented. Finally, some preliminary experimental results arepresented.