Rated Volt:110V-690V
Frequency:50/60HZ
Wiring:3P3W/3P4W
Warranty:18 months
Installation: Wall-mounted
Standard:IEC61000/62477
CoEpower advanced power factor improvement Series Static Var Generator (SVG) is an IGBT inverter based 3 level design intelligent PFC product, this Gerador de Var Estático SVG has a wide compensation range from the -1 to +1 lagging, and leading reactive power compensation, three-phase unbalance correction, and harmonic mitigation.
CoEpower special design SVG offers a Target PF working mode, it regulates the PF power factor to the setting value in the HMI in real time, It detects the load current through an external current transformer CT, and then it analyzes the load required reactive power current value by DSP control program in real-time, then generates PWM signal to IGBT inverter to output an opposite direction but same value current to offset the reactive current to meet the target power factor.
| Rated Voltage | 110-690V |
| Rated Capacity | 5kvar-120kvar |
| Frequency | 50/60Hz |
| Wiring Mode | 3P3W/3P4W |
| Filtering Range | 3-13th Order Harmonic |
| Function | Harmonic Mitigation, Reactive Compensation, Imbalance Phase Balancing |
| Full Response Time | <10ms |
| Switching Frequency | 20Khz |
| Power Loss | <2.5% |
| Standard | IEC61000/62477 |
| Communication | MODBUS Protocol/Optional Ethernet |
● SVG is designed by the component concept and can make compensation for both capacitive and inductive loads, thus obtaining a compensation effect with the level of PF 0.99 and avoiding over-compensation and under-compensation
● The complete response time of SVG is less than 10 ms and the dynamic response time is less than 50 μs, making SVG a top pick for a fast-changing environment.
● The capacitor that comes with the SVG does not require the installation of a filter bank; therefore resonant amplification will not happen. In addition, as an active compensation device and a current source device adopting such cut-off components as IGBT, SVG wards off resistance from the perspective of mechanism, significantly improving completeness.
● SVG can continuously adjust reactive power dynamically and bi-directionally (-1 to +1); that is to say, SVG can output reactive power constantly in both rated capacitive and rated inductive working conditions and it can make constant compensation in a wide range if combined with a fixed capacitor.
● SVG does not need a large-capacity capacitor or reactor to serve as energy storage elements, and the area it occupies is just half of that occupied by other types of dynamic compensation assemblies with the same capacity, or even a smaller area. Moreover, SVG adopts modular design and cabinet-type installation, which demands only a few efforts in engineering design and installation.
● SVG is designed with an active compensation circuit; therefore, the voltage of the grid has little influence on the compensation capacity. The output of reactive current matches the working condition even when the voltage of the power grid is low.
● SVG has low power loss and needs little maintenance, so chances of resonance overvoltage are pretty low. The service life lasts for over ten years (with an MTBF longer than 100,000 hours).
● High efficiency >97%
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| Wall Mounted SVG | Floor Stand Indoor Cabinet | Rack Mounted SVG |
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A Static Var Generator (SVG), also known as a Static Synchronous Compensator (STATCOM) in some contexts, is used for dynamic reactive power compensation in electrical power systems. It helps regulate voltage stability, improve power quality, and enhance grid efficiency. Below are its key application fields:
-Power Transmission & Distribution
Voltage stabilization in high-voltage grids
Reducing transmission losses
Improving system reliability and reducing blackouts
Compensating for reactive power variations
-Renewable Energy Integration
Stabilizing wind and solar power generation
Mitigating voltage fluctuations due to intermittent generation
Enhancing grid code compliance for renewable energy sources
-Industrial Applications
Reducing power factor penalties by compensating for reactive power
Improving voltage stability for large industrial loads (e.g., steel mills, cement plants)
Preventing flicker and harmonics in sensitive manufacturing processes
-Electric Railways & Metro Systems
Improving power quality for traction systems
Compensating for the dynamic reactive power demand of electric trains
Reducing voltage drops along railway power networks
-Data Centers & Commercial Buildings
Enhancing power factor to avoid extra charges from utilities
Ensuring stable power supply to critical IT infrastructure
Mitigating harmonics and voltage fluctuations
-Offshore & Marine Applications
Stabilizing voltage in offshore wind farms
Improving power quality in ships and offshore platforms
Compensating for fluctuating loads in marine electrical systems
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| CE Test | CQC Test | Type Test Report |
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.
● We are a professional power quality solution research and development design manufacturer.
● Excellent teamwork from pre-sales to after-sales that can support you with fast reliable service.
● Top-grand components and strict QC controls system offered.
● Factory stock fast dispatch and multi-overseas shipping support.
● TUV CE-approved test item based on IEC 61000 AND IEC 62477 series standards.
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