SNA-SVG is a static reactive power generator (SVG) designed to compensate for reactive energy consumed or generated in real-time by inductive or capacitive loads. It's the ideal solution for power factor correction in applications where the load varies rapidly (such as resistance welding, arc furnaces, refrigeration or compressed air compressors, etc.) or in networks heavily polluted by harmonics. It is designed with state-of-the-art technology based on high-performance IGBTs under a 3-level topology, It acquires the current signal of the load by the CT, the DSP tracks the command current quickly and calculates the reactive power rate of change by the intelligent algorithm to send the data to the IGBT by PWM signal. Finally, the inductive or conductive power compensation current is generated on the inverter to achieve the real-time dynamic reactive power compensation. In addition to improving power factor, it provides energy quality solutions such as harmonic elimination and load balancing.
Static Var Generator Advantages:
● Harmonic compensation up to the 51th order
● Load balancing between phases and neutral
● Compact design, three-level topology
● Expandable up to 12 modules in parallel
● 4inch/7inch/10inch simple and user-friendly HMI
● Silent operation ≤65dB(A)
● RS485/Ethernet communication optional
Static Var Generator Application:
· Special compensation for large loads: SVG is particularly suitable for special compensation of large loads, such as rolling mills, electric arc furnaces, and electrified railway traction stations in steel production. These devices consume a lot of energy and have a significant impact and adverse effects on the power grid. SVG can quickly respond and dynamically compensate for the reactive power required by these loads, thereby improving power factor and optimizing power quality.
· Large industrial users: High energy-consuming industrial loads, such as metallurgy, petrochemicals, etc., usually form their own power systems and are interconnected with the public power grid. The power supply department has technical constraints on these users, especially power factor. The application of SVG can help these large industrial users improve power factor, reduce electricity expenses, and improve the power quality of the grid.
· Substation of power system: With the expansion of power grid scale and the complexity of network structure, the demand for dynamic reactive power compensation with fast response in substations has increased. SVG can quickly absorb or emit the required reactive power, improve the transmission capacity and stability of substations, and ensure the safe operation of the power grid.
· Hybrid compensation of harmonics and reactive power: Many large capacity industrial loads require both reactive power compensation to improve power factor and harmonic control. SVG can not only dynamically compensate for reactive power of loads, but also simultaneously control harmonics, improve the power quality of the power grid, and enhance equipment operating efficiency.
Where Can Static Var Generator Be Used?
| Application | Typical Loads | Main Requirement |
|---|
| Manufacturing Plants | Motors, VFDs, welding machines | Dynamic power factor correction |
| Steel and Metallurgy | Rolling mills, arc furnaces | Fast reactive power compensation |
| Mining Facilities | Crushers, conveyors, hoists | Voltage stability and load balancing |
| Commercial Buildings | HVAC, elevators, pumps | Reduced reactive power demand |
| Data Centers | UPS and cooling systems | Stable power factor and voltage |
| Hospitals | MRI, CT, X-ray and HVAC | Stable supply for sensitive loads |
| EV Charging Stations | High-power chargers | Compensation for rapid load changes |
| Renewable Energy | Solar and wind systems | Bidirectional reactive power support |
| Ports and Cranes | Lifting and drive systems | Rapid compensation and flicker reduction |
| Water Treatment | Pumps and variable-speed drives | Improved system efficiency |
SVG or Capacitor Bank: Which One Should You Choose?
| Selection Factor | Static Var Generator | Capacitor Bank |
|---|
| Load Condition | Rapidly changing loads | Stable and predictable loads |
| Compensation Output | Continuous and stepless | Fixed compensation steps |
| Response Speed | Millisecond-level | Depends on switching method |
| Inductive Compensation | Yes | Normally no |
| Capacitive Compensation | Yes | Yes |
| Overcompensation Risk | Low with correct control | Higher under changing loads |
| Phase Load Balancing | Available | Not normally available |
| Expansion | Modular parallel expansion | Additional capacitor steps required |
| Initial Investment | Higher | Lower |
| Recommended Use | Complex or fluctuating systems | Basic power factor correction |
For stable base reactive power demand, a capacitor bank may provide a cost-effective solution. For rapidly changing loads, precise power factor correction or leading and lagging reactive power conditions, an SVG is usually more suitable. SinaVa Power can also configure a hybrid compensation system combining capacitor banks and SVG modules.
Why Sinava as Your SVG Supplier?
Modern electrical systems face increasing demands for stability, efficiency, and compliance with stringent power quality standards. At Sinava, we stand at the forefront as a trusted Static Var Generator (SVG) supplier, delivering intelligent solutions that ensure optimal power factor correction, voltage stabilization, and seamless grid support.
Our SVG systems are engineered with advanced IGBT technology and real-time digital control to provide dynamic, bidirectional reactive power compensation—making them ideal for today’s complex and fluctuating load environments.
With over 35 years of experience in power quality solutions, we provide customized SVG products for industrial, commercial, and renewable energy applications. As a trusted Static Var Generator supplier, we deliver high-performance, scalable, and user-friendly solutions worldwide.
Is Your Electrical System Experiencing These Problems?
A Static Var Generator may be suitable for your project when:
Power factor changes significantly during production.
Utility power factor penalties remain high.
Capacitor banks switch frequently or cannot follow load changes.
Both inductive and capacitive reactive power occur.
Voltage fluctuates when large equipment starts or stops.
Welding machines, compressors, cranes, VFDs or furnaces create rapidly changing loads.
Three-phase current is unbalanced.
Existing compensation equipment has insufficient capacity.
More electrical loads will be added in the future.
Limited installation space requires a modular compensation system.
Not sure whether an SVG, capacitor bank or hybrid compensation system is more suitable? Send us your electrical data for a preliminary review.
