The difference between ASVG and SVG
May 28, 2025| Standard SVG is the cost-effective solution for pure reactive power compensation. ASVG (often called Hybrid SVG or SVG+APF) is the all-in-one powerhouse that handles both reactive power and harmonics simultaneously.
The standard SVG is designed for speed. It injects reactive current into the grid to correct the power factor instantly.
- Best for: Industrial plants with large motors, cranes, or elevators where the load changes rapidly.
- Function: 100% capacity dedicated to reactive power compensation.
- Limitation: It does not filter harmonics. If your grid has high harmonic distortion, an SVG alone won't fix the power quality issues.
ASVG integrates the functions of an SVG and an APF (Active Power Filter). It is smarter and more versatile.
- Best for: Facilities with non-linear loads like VFDs (Variable Frequency Drives), UPS systems, or welding machines.
- Function: It prioritizes reactive power compensation but uses remaining capacity to filter harmonics (e.g., 3rd, 5th, 7th).
- Advantage: One device replaces two. You save panel space and installation costs.
Comparison Summary
| Feature | Standard SVG | ASVG (Active SVG) |
| Core Function | Reactive Power Compensation | Reactive Power + Harmonic Filtering |
| Response Time | < 10ms | < 10ms |
| Harmonic Handling | None | Yes (Simultaneous) |
| Cost Efficiency | Lower initial cost | Higher ROI (2-in-1 solution) |
| Ideal Scenario | Inductive loads (Motors) | Complex loads (Electronics, VFDs) |
our Product Feature
Dual-Action Technology
ASVG models eliminate harmonics while correcting power factor, solving two problems at once..
Instant Response
Both models react in less than 10ms, ensuring stable voltage even with fluctuating loads.
Modular Design
Efficient and precise processing and testing equipment.
Smart Monitoring
Real-time data on voltage, current, PF, and harmonics via LCD or cloud interface.
Energy Savings
Reduces line losses and avoids utility penalty fees for low power factor.
Products Specification
| Specification | SVG Series | ASVG Series |
| Circuit Topology | Three-level / Multi-level | Three-level / Multi-level |
| Rated Voltage | 380V ±20% / 690V ±20% | 380V ±20% / 690V ±20% |
| Compensation Mode | Reactive Power Only | Reactive Power + Harmonics |
| Target Power Factor | > 0.99 | > 0.99 |
| Harmonic Mitigation | N/A | THDi < 5% (Configurable) |
| Response Time | < 10ms | < 10ms (Full response < 20ms) |
| Communication | RS485 (Modbus RTU) | RS485, Ethernet, Profibus (Opt.) |
| Cooling Method | Forced Air Cooling | Forced Air Cooling |
| Protection | Over-current, Over-voltage, Over-temp | Over-current, Over-voltage, Over-temp, Harmonic Overload |
FAQ
Q1. Can I use a standard SVG if I have harmonics in my system?
A: Technically yes, but it is not recommended. A standard SVG focuses only on reactive power. If harmonics are present, they can cause the SVG to overheat or trip. An ASVG is the safer choice as it actively filters
harmonics to protect the equipment.
Q2. Is ASVG more expensive than SVG?
A: The upfront cost of an ASVG is higher than a standard SVG. However, an ASVG combines the functions of an SVG and an APF (Active Power Filter). Buying one ASVG is usually cheaper than buying two separate devices, and it saves you valuable cabinet space.
Q3. What is the response time for Jinneng's SVG/ASVG?
A: Our devices feature a response time of less than 10ms. This ensures that even if your load changes instantly (like a crane lifting a heavy object), the power factor correction happens immediately, keeping your grid stable.
Q4. Do these devices require a lot of maintenance?
A: No. Both SVG and ASVG units are solid-state electronics with modular designs. They have no moving parts other than the cooling fans, which are easily replaceable. The system runs automatically once commissioned.