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- Modular Circuit Structure
- Fully Digital Intelligent Control
- Real-Time Monitoring & Remote
- Uninterrupted Power Supply
- High-Efficiency Electromagnetic Compatibility Design
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Product Description
The SVG series high-voltage dynamic reactive power compensation device is a reactive power compensation system centered on IGBT technology. It can rapidly and continuously supply capacitive or inductive reactive power to achieve precise control objectives at the point of common coupling—such as constant reactive power, constant voltage, or constant power factor—ensuring stable, efficient, and high-quality operation of the power system.
When installed near special industrial loads (e.g., electric arc furnaces, medium-frequency induction furnaces, ladle refining furnaces) in distribution networks, medium- and small-capacity SVG units significantly improve power quality at the connection point between the load and the grid. Key benefits include:
1.Power factor correction
2.Three-phase voltage balancing
3.Suppression of voltage flicker and fluctuations
4.Harmonic mitigation
Operating Conditions
Environmental Requirements
Ambient Temperature: –35°C to +45°C (outdoor)
Relative Humidity: 20% to 90% at 40°C
Altitude: Up to 2,000 meters above sea level
Installation Environment
No severe vibration or mechanical shock
No corrosive gases, conductive dust, explosive media, or heavy mold contamination
Main Technical Specifications
| Parameter | Specification |
| Rated Capacity | ±1 Mvar to ±100 Mvar |
| Rated Voltage | 6 kV, 10 kV, 27.5 kV, 35 kV |
| System Frequency | 50 Hz |
| Overload Capability | >120% |
| Response Time | ≤5 ms |
| Active Power Loss | ≤0.8% |
| Total Harmonic Current Distortion (THDi) | ≤3% |
| Control Power Supply | 380 VAC, 220 VAC, or 220 VDC |
| Reactive Power Regulation | Continuous, smooth, automatic capacitive/inductive adjustment |
| Communication Interfaces | Ethernet, RS485, CAN, high-speed fiber optics |
| Supported Protocols | MODBUS_RTU, PROFIBUS, CDT91, IEC 61850-103/104, CANopen, custom protocols |
| Control Modes | Constant device Q, constant PCC Q, constant PCC PF, constant PCC voltage, load compensation, 6-point time-based scheduling |
| Parallel Operation | Multi-unit parallel networking; multi-bus integrated compensation; supports combined control with up to n fixed capacitor banks |
| Protection Rating | Indoor: IP40; Outdoor: IP44 |
| Protection Functions | Output overcurrent, system short circuit, abnormal system voltage, CT open-circuit, overtemperature, water-cooling failure, communication loss |
