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...
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...
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