Symmetrical Components

Power systems ideally operate in a balanced state, with equal voltages and currents across all phases. However, real-world scenarios often involve unbalanced conditions that can degrade power quality. Symmetrical components are a powerful mathematical tool used to analyze unbalanced systems and understand their impact on power quality.

This white paper introduces symmetrical components and describes how they can be computed and measured using PMI’s web-based PQ Canvass software.