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Aug 19,2026
In power quality management, different voltage levels often require different harmonic mitigation strategies. In low-voltage systems, Active Harmonic Filters (AHFs) are widely used because they offer flexible and precise harmonic compensation. However, when it comes to medium- and high-voltage power systems, passive Filter Capacitor (FC) systems remain a more common and practical solution. So, why...
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Aug 26,2026
Variable Frequency Drives (VFDs) have become essential in modern industrial systems. They provide accurate motor speed control, reduce mechanical stress, and can significantly improve energy efficiency. However, there is another side of VFD technology that is often underestimated: harmonic distortion. In low-voltage distribution systems, a large number of VFDs can become an important source of har...
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Sep 02,2026
In low-voltage power factor correction systems, detuned reactors are widely used together with capacitor banks to prevent harmonic amplification and protect capacitors. Among the most common configurations, 7% and 14% detuned reactors serve different purposes and require different capacitor specifications. A 7% detuned reactor typically creates a tuning frequency of approximately 189 Hz in a 50 Hz...
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Sep 12,2026
In power systems, harmonics are fundamentally caused by non-linear loads. When current flows through a load and does not maintain a linear relationship with the applied voltage, a non-sinusoidal current is produced, resulting in the generation of harmonics within the circuit. Harmonic frequencies are integer multiples of the fundamental frequency; as demonstrated by the analytical principles of th...
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