SNA-SVG (Static Non-linear Array - Static Var Generator) is a static reactive power generator that uses power electronics to provide dynamic and precise reactive power compensation, also known as a Static Compensator (STATCOM). It helps stabilize voltage in electrical systems, especially when dealing with fluctuating loads or renewable energy sources.
A Static Var Generator (SVG) is a solid-state device used for dynamic reactive power compensation in electrical systems. By continuously adjusting the output voltage and reactive power flow, SVGs help regulate the system's voltage levels and improve power factor efficiency. These hybrid var generators are particularly effective in stabilizing grid voltage fluctuations caused by renewable energy sources and fluctuating loads. With their fast response times and ability to provide precise reactive power support, SINAVA Static Var Generators enhance system stability, reduce line losses, and optimize overall power quality in modern electrical networks.
Key Features and Functionality of SNA-SVG:
Dynamic Reactive Power Compensation: SNA-SVGs can quickly and continuously adjust their output to compensate for reactive power variations, particularly useful for fluctuating loads or renewable energy integration.
Voltage Regulation: By controlling the reactive power flow, SNA-SVGs help maintain stable voltage levels in the electrical system.
Power Factor Correction: They improve the power factor by minimizing the difference between the current and voltage, reducing line losses and improving overall system efficiency.
Solid-State Technology: SNA-SVGs use solid-state devices like IGBTs, which offer fast switching speeds and precise control.
Modular Design: Many SNA-SVGs are designed with a modular structure, allowing for easy scaling of the system's capacity by adding or removing modules.
Applications of SNA-SVGs:
Where there is a low-voltage transformer is installed and next to large electrical equipment should be equipped with reactive power compensation devices svg static var generator(this is the provisions of the national power department), especially those with low power factor industrial mines, enterprises, and residential areas must be installed. Large asynchronous motors, transformers, welding machines, punches, lathes, air compressors, presses, cranes, smelting, steel rolling, aluminum rolling, large switches, electric irrigation equipment, electric locomotives, etc. In addition to incandescent lighting in residential areas, air conditioning, refrigerators, etc., are also reactive power consumption objects that can not be ignored. The rural electricity situation is relatively bad, most areas lack of power supply, voltage fluctuation is very large, power factor is especially low. Installing compensation equipment is an effective measure to improve the power supply situation and improve the utilization rate of electric energy. SVG static var generator must be the most ideal reactive power compensation device.
1. All types of industrial installations
2. Equipment using variable speed drive (VSD)
3. Arcing equipment: electric arc furnace (EAF), ladle furnace (LF), and arc welding machine
4. Switching power supply: computer, TV, photocopiers, printer, air conditioner, PLC
5. UPS system
6. Data center
7. Medical equipment: MRI scanner, CT scanner, X-ray machine, and linear accelerator
8. Lighting equipment: LED, fluorescent lamp, mercury vapor lamp, sodium vapor lamp, and an ultraviolet lamp
9. Solar inverter and wind turbine generators
FAQs About SVG Static Var Generator
Q1: What is a Static Var Generator (SVG)?
A Static Var Generator (SVG) is a power quality device for dynamic reactive power compensation. It helps stabilize voltage levels and improve power factor by injecting or absorbing reactive power as needed. Unlike traditional capacitor banks, SVG provides real-time compensation and works effectively under varying load conditions.
Q2: How do you select a Static Var Generator?
When choosing an SVG, consider the following factors:
-Reactive power demand: Determine the required kVAR rating based on the power system’s reactive power needs.
-Load type: Suitable for industries with fluctuating reactive power demands, such as welding, data centers, and steel plants.
-Response time: Look for fast response times (typically <5ms) for handling dynamic loads.
-System voltage and capacity: Ensure compatibility with the existing electrical infrastructure.
-Installation environment: Consider indoor or outdoor installations and environmental factors like temperature and humidity.
Q3: What is the difference between a Static Var Generator and a Capacitor Bank?
SVG: Uses advanced power electronics (IGBT-based technology) for real-time reactive power compensation, providing continuous, stepless control.
Capacitor Bank: Uses fixed or switched capacitors to compensate for reactive power in discrete steps, which may lead to overcompensation or undercompensation.
Q4: What is the difference between an SVG (Static Var Generator) and an AHF (Active Harmonic Filter)?
| Feature | SVG (Static Var Generator) | AHF (Active Harmonic Filter) |
| Primary Function | Reactive power compensation (power factor correction) | Harmonic compensation & power factor correction |
| Key Benefit | Voltage stability, improved power factor | Reduction of harmonic distortion |
| Best for | Power factor correction & voltage stability | Harmonic-rich environments (VFDs, UPS, nonlinear loads) |
| Technology | IGBT-based real-time compensation | IGBT-based real-time harmonic filtering |
| Response Speed | <5ms | <1ms |
| Effect on Harmonics | Does not eliminate harmonics | Actively cancels harmonics |
SVG is ideal for voltage stability and reactive power control.
AHF is better for harmonic-rich environments and power quality improvement.
For complete power quality solutions, SVG and AHF can be used together in complex electrical systems.
Q5: Is SVG suitable for all types of loads?
SVG is ideal for dynamic loads that require reactive power compensation and power factor correction, including:
Welding equipment (arc welding machines, resistance welding machines)
Elevators, cranes (rapidly changing loads)
Renewable energy systems (wind power, solar PV)
Industrial applications (steel, chemical, cement industries)
Data centers, hospitals, airports (high power quality requirements)
However, SVG has limited effects on pure resistive loads (e.g., electric heaters).
Q6: Will SVG conflict with AHF (Active Harmonic Filter)?
No, SVG and AHF can work together to improve overall power quality:
SVG focuses on reactive power compensation and power factor improvement.
AHF eliminates harmonics and reduces Total Harmonic Distortion (THD).
Using both in combination is ideal for environments with nonlinear loads such as VFDs, UPS, and electric arc furnaces.
Why Choose Us?
1. ODM/OEM service is offered.
2. Quick order confirmation.
3. Fast delivery time.
4. Convenient payment terms.
At present, SINAVA is vigorously expanding overseas markets and its global layout. We are committed to becoming one of the top ten export enterprises in China’s electrical automatic products, serving the world with high-quality products and achieving a win-win situation with more customers.
