
ENGINEERED SOLUTION
Steel & Metallurgy
Power factor correction, harmonic mitigation and voltage support for electric arc furnaces, rolling mills, cranes and high-load metallurgical production lines.
| Parameter | Specification |
|---|---|
| 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 | |
| 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 | |
| Dimensions | Customized according to model selection |
| Details | Wall-mounted, rack-mounted, or integrated cabinet configuration |



