Static Var Generator SVG for Power Factor Correction A fabrication plant in Monterrey replaced its capacitor bank contactors every quarter. The 800 kvar bank tripped on overcurrent whenever five spot welding machines fired within the same second, and the utility meter recorded a lagging power factor of 0.78 — the plant paid a penalty surcharge on every invoice. The capacitors were not...
Medium Voltage Harmonic Filters: A Complete Selection Guide Medium voltage harmonic filters help industrial facilities, renewable energy plants, utilities, and infrastructure projects control harmonic distortion in their electrical systems. Harmonics can reduce power quality, increase equipment losses, create overheating, and interfere with normal system operation. A correctly designed harmonic fi...
Stop Hidden Power Costs from Automotive Dynamic Loads: Benefits of Power Quality System Upgrade Automotive assembly lines operate with extreme load volatility. High-power lifting equipment and robotic welders demand instantaneous reactive power during startup cycles. Traditional capacitor-based compensation systems fail to track these millisecond-level transients, leading to severe power fa...
SVG for Reactive Power Compensation in Industrial Plants A shovel line that punished the capacitor bank A copper mine in Chile ran an 800 kW electric shovel with 1.2 MW peaks on a 690 V bus. Voltage flicker (Pst) measured 1.6 against the 1.0 limit, and the contactor-switched capacitor bank cycled more than 200 times per day. Contactors failed every seven months, and the site p...
Your UPS (Uninterruptible Power Supply) is supposed to be your safeguard—the insurance policy that keeps your critical operations running when the grid fails. But here's the irony: that very same UPS might be quietly damaging your equipment, inflating your electricity bills, and threatening the stability of your entire electrical system. How? Through harmonic distortion. Let's break dow...
Power Quality in Steel Mills — A Silent Threat to Production Steel manufacturing is one of the most energy-intensive industries in the world. Within a typical steel mill, you will find a diverse range of electrical loads: water pumps circulating cooling systems, medium-frequency induction furnaces for melting, overhead cranes for material handling, LED lighting for workspaces, rolling mills,...
A plastics extrusion plant in Ohio replaced motor starters with VFDs and cut drive energy use by 4%. Three months later, its 1000 kVA transformer ran 18 K above nameplate temperature, two capacitor banks tripped on overcurrent, and the utility applied a power-factor penalty. THDi on the 480 V bus measured 32% at full production. Adding capacitors would make that worse, not better. The fix i...
Power Quality Challenges Created by Battery Energy Storage Systems Battery energy storage systems (BESS) are becoming a major part of modern electrical infrastructure. Utilities, renewable energy plants, industrial facilities, data centers and microgrids increasingly use battery storage to manage peak demand, stabilize power supply and integrate renewable energy. However, connecting large battery ...
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