Power Quality Instruments: An Overview

DCS Schneider ecostrux 400

February 10, 2022

In today’s proliferation of renewable and distributed electricity generation sites, there is an increasing need to quantify the quality of the power flowing throughout the grid. This increasingly necessary function is most consistently performed by a Power Quality Instrument (PQI). A PQI, by definition, adheres to the plethora of requirements outlined by the IEC 62586-1 harmonized product standard. There is a wide spectrum of power quality (PQ) meters available on the market today, however only a few of them are suitable for measuring grid power quality. This paper will help discern which of these meters can be validated as a PQI.

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