High‑Performance Static Var Generator (SVG)

The RWSVG Static Var Generator is designed to provide real-time reactive power compensation through advanced self-commutated bridge technology. By connecting the bridge circuit in parallel with the power grid through a reactor, the device precisely regulates the phase angle and amplitude of the AC output voltage, or directly controls the AC-side output current. This enables the SVG to generate the required capacitive or inductive reactive current, ensuring fast, accurate, and stable dynamic reactive power compensation.

The RWSVG effectively improves system power factor, stabilizes voltage, and reduces power losses caused by reactive fluctuations. It also enhances power quality by mitigating issues such as voltage flicker, current distortion, and unbalanced loads. With rapid response and high precision, the RWSVG provides a reliable solution for modern industrial networks facing dynamic loads and stringent power quality requirements.

Product Features

• Provides fast and continuous reactive power compensation to maintain stable system voltage.

• Improves power factor and reduces system losses by supplying inductive or capacitive reactive current in real time.

• Mitigates voltage fluctuations, current distortion, and load imbalance caused by nonlinear or impact loads.

• Uses full-digital control with high sampling accuracy, ensuring stable operation under varying grid conditions.

• Offers rapid dynamic response, enabling precise real-time compensation without switching transients or inrush currents.

• Supports modular parallel configuration to increase overall compensation capacity.

• Integrates comprehensive protections including overvoltage, undervoltage, overcurrent, overload, overheating, short circuit, and communication failure.

• Provides detailed monitoring and data logging for voltage, current, power factor, reactive power, harmonics, frequency, and device operating status.

• Designed for stable long-term operation with high reliability and minimal maintenance requirements.

Application Fields

• Industrial lifting equipment, cranes, and heavy-duty hoisting systems with typical impact loads requiring stable voltage and improved power factor.

• Power distribution systems supplying variable-speed drives, welding machines, compressors, pumps, and large impact loads.

• Mining, petroleum, drilling, and construction machinery with rapidly changing load demands or severe reactive power fluctuations.

• Manufacturing facilities with large-scale automation equipment, PLC systems, CNC machines, and precision electronic devices sensitive to voltage variations.

• Data centers and communication stations requiring stable reactive power support and improved power quality.

• Commercial buildings, hospitals, laboratories, and public facilities with complex loads causing voltage drop, imbalance, or reactive instability.

• Any distribution network where rapid dynamic reactive compensation is needed to improve efficiency, reduce energy loss, and enhance equipment lifetime.

Technical Parameters

Input Specifications

• Rated Voltage: 380V (allowable fluctuation range –40% to +20%)

• Rated Frequency: 50Hz ±2Hz

Compensation Capacity

• Available Capacities: 50kvar, 75kvar, 100kvar, 200kvar (parallel expansion supported)

• Compensation Mode: Inductive and capacitive continuous dynamic compensation

• Overall Efficiency: ≥97%

• Switching Frequency: Approx. 20kHz

Measurement & Control

• CT Requirements: 3 × CT, accuracy class 0.5 or above, secondary current 5A

• Response Time (Current Loop): 40μs

• Full Compensation Time: 10ms

• Harmonic Handling: Capable of suppressing 3× line current

Protection Functions

• Overvoltage, undervoltage, overcurrent, overload, overheating

• IGBT overtemperature, fan failure, device internal fault

• Short-circuit and DC bus overvoltage protection

• THD-related protection for load current and system stability

Monitoring & Communication

Display & Records:

• Real-time current, voltage, power factor, THD values

• Load current waveform and three-phase voltage waveform

• IGBT temperature and internal status

• Operating mode, event logs, and system alarms

Communication Interface: RS485 / Ethernet

Protocol: Modbus

Environmental Conditions

• Operating Temperature: –10°C to +45°C

• Storage Temperature: –20°C to +60°C

• Relative Humidity: ≤95% (non-condensing)

• Altitude: ≤2000m (higher altitudes require derating)

• Protection Grade: IP20

• Cooling Method: Intelligent forced air cooling

Installation Method

• Wall-mounted, rack-mounted, or integrated cabinet configuration

• Dimensions: Customized according to model selection