Power Quality Modules
Static Var Generator (SVG)
Static Var Generator (SVG) for three-phase four-wire systems, providing bidirectional capacitive and inductive reactive power compensation with real-time closed-loop control.
Overview
The Static Var Generator (SVG) connects a three-phase bridge inverter circuit through reactors in parallel to the grid. By adjusting the phase and amplitude of the AC-side output voltage or directly controlling the AC-side current, the circuit outputs the required reactive current for system reactive power compensation. It tracks reactive power changes in real time with linear compensation to maintain the system power factor at 0.99, and provides bidirectional capacitive and inductive compensation to avoid over-compensation and under-compensation. Active compensation output avoids resonance, harmonic amplification and low compensation efficiency at low voltage. Modular design supports simple capacity expansion and maintenance, convenient wiring, flexible configuration and easy installation, with wall-mounted and rack-mounted options.
Key features
- Wide compensation range: (+1) to (-1)
- Fast response: full compensation response ≤10ms
- Low-order harmonic compensation capability: 3rd to 13th harmonic compensation
- Three-phase unbalance compensation capability
- Flexible configuration: treatment priority can be set according to actual power quality conditions to maximize module utilization
- Parallel connection to the system with 16 protection functions
- User-friendly operating system
Technical information
- Equipment capacity
- 30kvar / 50kvar / 70kvar / 100kvar
- Rated voltage
- AC200V ~ AC690V
- Operating frequency
- 50Hz/60Hz
- Phase and wire system
- Three-phase four-wire
- Reactive power compensation range
- (+1~-1) capacitive and inductive bidirectional compensation
- Fast response time
- ≤40us
- Full response time
- ≤10ms
- Filtering function
- 3/5/7/9/11/13rd harmonic filtering capability
- Three-phase unbalance adjustment
- Three-phase unbalance adjustment capability
- Protection functions
- Grid overvoltage, undervoltage, phase loss, three-phase instantaneous overcurrent, three-phase delayed overcurrent, bus overvoltage, bus undervoltage, overheating, fan fault, power supply fault, current limiting protection, frequency protection, fuse fault
- Central control
- Optional 10-inch central monitoring touch screen; each touch screen manages up to 6 SVG modules
- Communication
- RS 485 communication, MODBUS protocol
- Sampling method
- Incoming cabinet sampling, closed-loop control
- Installation method
- Wall-mounted / rack-mounted
- Cable entry
- Top entry / rear entry
- Cooling method
- Intelligent air cooling
- Noise
- ≤60dB, background noise less than 40dB
- Protection rating
- IP 20
- Ambient temperature
- -30°C ~ +45°C
- Relative humidity
- ≤95%, non-condensing
- Altitude
- 2000m; derating for higher altitudes
Ratings shown relate to the pictured sample. Final ratings are confirmed against your order.