High-Voltage Dynamic Reactive Power Compensation
ARevolutionary capacitor-free technology that delivers rapid response (≤4ms), superior efficiency (≥99%), and comprehensive power quality management through intelligent power electronics switching.
Product Overview
What is ZG-dSVG?
Dynamic Reactive Power Compensation Device represents a breakthrough in power quality technology. Unlike traditional reactive power compensation equipment that relies on large-capacity capacitors and inductors, ZG-dSVG utilises high-frequency switching of power electronic devices to achieve reactive energy conversion. Currently it has over 2,000+ installations across diverse industries.
Key Innovation
By eliminating capacitors and inductors, ZG-dSVG achieves unmatched advantages in compensation effectiveness, power density, and operational efficiency, making it the optimal solution for comprehensive power quality management.
Core Benefits
- Enhance Grid Voltage Transient Stability: Rapidly responds to voltage fluctuations
- Suppress Bus Voltage Flicker: Eliminates voltage quality issues caused by fluctuating loads
- Compensate Unbalanced Current: Addresses three-phase imbalance problems
- Filter Harmonics: Reduces harmonic distortion to <2%
- Improve Power Factor: Optimises reactive power consumption and reduces energy costs
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | 6-35kV |
| Compensation Capacity | 0.3-150 Mvar |
| Adjustment Range | Continuously adjustable from rated inductive to capacitive reactive power |
| Rated Frequency | 50Hz |
| Response Time | <4ms |
| Overload Capacity | 1.1x for 3 minutes |
| Harmonic Characteristics | Output current THD <2% |
| Efficiency | ≥99% |
| Cooling Methods | Air-cooled / Water-cooled / Hybrid |
| Operating Modes | Constant PF / Constant Q / Constant V / Constant I / Comprehensive / Load Compensation |
| Installation | Indoor cabinet / Outdoor containerised |
| Operating Temperature | -40°C to 45°C |
| Altitude | <3500m |
Ultra-Fast Response & Flicker Suppression
Response time ≤4ms enables rapid conversion between rated capacitive and inductive reactive power, perfectly addressing impact load compensation requirements and effectively suppressing voltage flicker to prevent grid incidents.
High Efficiency & Excellent Harmonic Performance
- Cascaded topology with low-loss fully-controlled power devices
- Specialised control algorithms ensure high performance with minimal losses
- Device efficiency ≥99%
- Output current distortion <2% during reactive power compensation
- With sufficient capacity, provides low-order harmonic suppression and unbalance compensation
Superior Heat Dissipation
Air-cooled System
- Patented intermediate air duct design
- Long-life, maintenance-free external rotor motors
- Low-noise centrifugal fans
- Ensures overall system safety and reliability
Advanced Fault Detection & Protection
Standby monitoring
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