Power Quality Monitoring is concerned with issues such as detecting phase imbalances and particularly whether all phasors have the same magnitude and are phase-shifted symmetrically by 120-degrees to each other.
Power quality has a direct influence on client billing—hidden inefficiencies, voltage fluctuations, and unbalanced loads can inflate costs without delivering real value. Poor quality not only damages equipment but also distorts consumption patterns, leading to inaccurate charges and higher operational expenses. By improving monitoring and corrective measures, utilities can ensure fair billing, reduce unnecessary losses, and strengthen trust with their clients.
On the 2nd of October 2023, I published an article with the heading “Phase Imbalance in Distribution Networks” in which I stated that “In a recent unrelated “survey”, I came across a 10-minute averaged voltage unbalance of 327% between Phase 2 and Phase 1”. I also asked the question: is Eskom aware what is happening […]
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