What Is a Static Var Generator (SVG)?

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   A Static Var Generator (SVG) is a power electronics–based device whose main function is to instantly and precisely meet the reactive power demand in the electrical grid.
Compared to traditional capacitor and reactor banks, it provides much faster response and highly accurate compensation.

The operating principle of the SVG relies on IGBT-based inverter technology, which allows it to supply capacitive or inductive reactive power to the grid in real time.
As a result, it improves the power factor, minimizes voltage fluctuations, and enhances system stability.

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Key Features

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• Compensates inductive and capacitive reactive power in less than 15 milliseconds.

• Maintains the power factor at 0.99, maximizing energy efficiency.

• Compact design enables easy installation and saves space—up to 70% less area compared to traditional systems.

• Ensures phase balance in three-phase networks.

• Operates within a 220V to 480V range; can be paralleled with other units up to 1000V.

• Applicable to industrial facilities and commercial buildings alike.

• Offers over 97% efficiency, keeping thermal losses below 3%.

• Modular design allows for easy expansion and maintenance.

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Advantages of Static Var Generators

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⚡ High Response Speed: Reacts to dynamic load changes within milliseconds.
✅ Continuous Compensation: No switching steps as in conventional capacitor banks.
🔍 Accurate Power Factor Control: Maintains the power factor close to unity, preventing penalty charges.
🔌 Harmonic Filtering: Reduces THD levels and protects sensitive equipment.
♻️ Energy Efficiency: Low-loss, long lifespan, and minimal maintenance requirements.
🏭 Flexible Application: Suitable for industrial plants, commercial buildings, data centers, and renewable energy systems.

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Application Areas

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Static Var Generators are particularly preferred in environments where dynamic load variations occur frequently, such as:

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• Steel mills and rolling plants

• Enclosed motor drive systems

• Welding machines and arc furnaces

• Petrochemical plants

• Wind and solar power stations (WPP & SPP)

• Facilities with sensitive electronic equipment

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Conclusion

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The SVG provides a reliable and efficient solution in modern energy systems.
With its compact structure, high performance, and versatile applications, it marks a new era in energy management and reactive power control.
Choose SVG to future-proof your electrical systems and ensure stable, efficient operation.