Power quality is a growing issue in Africa. Many sites now use solar inverters, VFDs, battery systems, UPS units, and LED lighting. These loads improve efficiency, but they also create harmonic currents and reactive power problems. This is one reason harmonics damage transformers in modern facilities. In many African industrial power systems, transformers carry the stress of the whole network. Whe...
Active Harmonic Filter for Transformer Overheating Transformer overheating is a common problem in modern electrical systems. Many sites check the transformer load first. They also check cooling, cable size, room temperature, and ventilation. But the transformer may still run hot. In many cases, the real cause is harmonic distortion. An active harmonic filter helps reduce harmonic distortion in rea...
Introduction: The 2026 Grid Emergency Meets AI Infrastructure In July 2026, the eastern United States is experiencing a punishing heatwave. The PJM Interconnection—the largest US regional grid—is forecasting demand to exceed 166,000 MW, dangerously close to its all-time historical record. Utilities are considering the unthinkable: cutting AI data centers off the grid to preserve...
How to Reduce Electrical Losses in Industrial Power Systems Electrical losses raise operating costs, heat cables and transformers, and reduce available system capacity. They usually result from conductor resistance, inefficient loading, poor power factor, harmonic currents, and aging equipment. To reduce electrical losses in industrial power systems, engineers need accurate measurements, correct e...
Transformer Overheating Explained: Why It Happens Below Rated Load A transformer can run unusually hot even when the connected load appears safely below its nameplate rating. Current may seem acceptable while winding or enclosure temperatures continue rising. This often happens because loading is assessed only in kilowatts or average amperes. Harmonics, imbalance, poor power factor and inad...
Transformer Overheating from Harmonics: K-Factor vs AHF Mitigation In heavy industry, large data centers, and plants packed with VFDs and six-pulse rectifiers, a distribution transformer can run within its nameplate kVA and still develop abnormal temperature rise, oil-temperature alarms, or accelerated winding insulation ageing. The usual load-current check misses the frequency content of that cur...
Centralized vs Distributed AHF & SVG Placement Designing an effective power quality strategy for multi-transformer industrial plants, data centers, and manufacturing facilities requires far more than calculating total harmonic current (Ih) or reactive power (kvar) ratings. The physical placement of Active Harmonic Filters (AHF) and Static Var Generators (SVG) governs whether an installation me...
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IPv6 network supported
