Modular Design
A single module failure does not affect the others — high reliability and smooth capacity expansion.
Comparison
APF Active Power Filter vs Traditional Solutions
Active technology outperforms conventional capacitor-reactor banks across the board.
| Feature | APF Active Power Filter (Nortech) | Traditional Capacitor-Reactor Bank |
|---|---|---|
| Harmonic range | Effectively filters 90% of harmonics, 2nd–50th order (optional) | Limited to specific frequencies; resonance risk |
| Reactive compensation | Stepless compensation of inductive & capacitive reactive power | Only compensates inductive reactive power |
| Unbalance correction | Yes — three-phase unbalance compensation | No |
| Response speed | Extremely fast (< 0.1 ms) | Slow (20 ms – 5 s) |
| Resonance | Active compensation avoids resonance | May cause resonance and destabilize the system |
| Output capacity | Actual output equals rated capacity | Actual output is below rated capacity |
Premium Core Components
5th-generation German IGBTs and U.S. XILINX industrial-grade control chips.
Harsh-environment Ready
Layered design, dust- and moisture-resistant, with overvoltage, overcurrent and overheat protection.
Smart Touch Monitoring
High-resolution touchscreen for parameter setting, status monitoring and fault alarms at a glance.
Applications
Applications & Product Types
Multiple form factors for different site requirements.
Suitable for a wide range of industrial scenarios
Our solutions are widely deployed in industries with demanding power-quality requirements, effectively addressing challenges from all kinds of nonlinear loads.
Main Application Areas
Electronic manufacturing, communications equipment, aerospace, automotive manufacturing, metallurgy & casting, data centers, and more.
Typical Nonlinear Loads
Variable frequency drives (VFD), switched-mode power supplies (SMPS), welding equipment, motor drives, electric furnaces, and more.
Cabinet Type APF
High expandability and excellent heat dissipation with fault tolerance — ideal for large-capacity requirements.
Wall-mounted Type APF
Space-saving and quick to install — ideal where floor space is limited.
Hover a thumbnail to switch views, or click the image to enlarge.
Main Technical Parameters
| Working Voltage | 220V (-20%~+20%), 380V (-20%~+20%), 690V (-20%~+20%) |
| Harmonic Compensation | 2nd–50th order, THDi (Total Harmonic Distortion) < 5% |
| Reactive Compensation | -1 ~ +1 adjustable (within rated capacity) |
| 3-phase Unbalance | 100% unbalance — complete compensation |
| Total Response Time | < 20 ms |
| Cooling | Intelligent air cooling |
| Protection | Overvoltage, undervoltage, overheat, overcurrent, short circuit — 20+ protection functions |
| Operating Temperature | -10°C ~ +50°C |
| Protection Rating | Module IP20 + electronic layer IP42 (IP54 customizable) |
| Standards | CE, IEEE 61000 |