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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 14,2026
Can PCS Replace a Dedicated SVG? With the rapid development of battery energy storage systems (BESS), many people ask whether the reactive power compensation function of a PCS can replace a dedicated SVG. The answer is: Sometimes yes, but not always. 1. PCS: Energy Conversion with Reactive Power Support PCS (Power Conversion System) is mainly used to convert electrical energy between the battery a...
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Oct 08,2026
In modern industrial power systems and commercial power distribution networks, dynamic load fluctuations, inductive equipment operation, and unbalanced three-phase currents often lead to low power factor, grid voltage fluctuation, reactive power loss, and harmonic pollution. These power quality problems not only increase electricity consumption and operating costs but also cause equipment overheat...
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Oct 21,2026
SVG for reactive power compensation offers a wide range of power quality improvement measures, including reactive power compensation, harmonic suppression, mitigation of voltage fluctuation and flicker, and resolution of three-phase unbalance. Equipment used for reactive power compensation and harmonic control, such as passive power filters, features both reactive power compensation and voltage re...
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