Do VFDs Improve Power Factor? Displacement PF, True PF, and Harmonics Explained Variable frequency drives (VFDs) are often described as having a high power factor. That can be correct and still be misleading. A VFD may have little phase shift but draw pulsed input current, creating harmonics that reduce true power factor. The result is a common contradiction: one meter displays a cos φ close t...
Installing an Active Harmonic Filter (AHF) or Static Var Generator (SVG) requires more than simply choosing current or kVAr ratings. In facilities with multiple transformers or bus sections, physical placement directly determines compensation performance. Deciding between one large centralized unit at the main bus or several smaller distributed units near individual loads depends on your electrica...
Medium-Voltage Sensing, Low-Voltage Compensation: How SVG Cuts Reactive Power Costs Without High-Holtage Hardware Many facilities know they have a power factor problem. The utility bill shows penalties, transformers run hot, and production equipment overheats. But the obvious solution—installing reactive power compensation directly on the medium-voltage side—can be expensive, complex, ...
Solar Farms Are Paying Hidden Power Factor Penalties Here Is How SVG Stops the Bleeding Solar projects are built to generate active power and reduce electricity purchases from the grid. But as soon as PV production rises and grid import falls, a hidden problem appears: the facility’s reactive power demand does not disappear. The load still needs reactive power, but the active power drawn fro...
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