Harmonic Filter
Active Harmonic Filter AHF
Model： Active Harmonic Filter AHF
For IC semiconductor foundry, TFT-LCD factory, PCB factory and similar applications.
- Efficiency above 97%
- Compensates 2nd–50th harmonics
- Capacity 25A–300A
- Three-level topology
Specifications
| Item | Value |
|---|---|
| Rated Capacity | 25A, 35A, 50A, 60A, 75A, 100A, 150A, 300A |
| System Frequency | 50 Hz or 60 Hz (±0.75 Hz) |
| Full-load Efficiency | Above 97% |
| System Voltage Range | Three phase 208V, 220V, 380V, 440V, 480V, 600V (±10%); special voltages can be custom designed |
| Harmonic Compensation Orders | Full compensation of the 2nd to 50th harmonics |
| Cabinet Design | Independent enclosure or open panel construction, can be integrated with a drive in a single cabinet |
| Maximum Altitude | 1000 m |
| Topology | Three-level |
| Line Voltage Unbalance | Maximum 1% |
| Service Factor | 1.0 |
| Insulation | Inductance components H class (180°C or higher) |
| Ambient Temperature | −40℃~45℃ (installed in switchboard) |
| Temperature Rise | Inductance component 115℃ |
| Quality System | ISO 9001:2015 |
Applications
- IC semiconductor foundry
- TFT-LCD factory
- PCB factory
- Air conditioner
- Fabric factory
- Vehicle factory
- Chemical industry
- Steel industry
- Plating industry
- Glass industry
- Paper industry
- Large size UPS
- Other rectification equipment and those industry environment use converter heavily that will cause seriously electrical pollution by harmonics
Product Features
- Dynamic active filtering: Full compensation of the 2nd to 50th harmonics with a freely configurable compensation rate; tracks load changes dynamically in real time so that the compensation current follows the harmonic content precisely, ensuring optimal power quality.
- Intelligent Fourier computing: An advanced algorithm iterated from FFT on the basis of a large database, with high precision and ultra-fast computing to maintain continuous, stable and high-performance power quality management.
- Advanced three-level topology: The PWM output waveform is closer to a sine wave for excellent filtering; the LCL filter is smaller, supporting modular design; inductor losses are reduced and system efficiency improved for energy and carbon savings; IGBT voltage stress is halved, with low switching losses, large thermal margin and high switching frequency.
- Compact modular design: Ultra-compact structure supporting wall-mounted and rack-mounted installation, with top and bottom cable entry for easy transport, on-site replacement and integration into switchgear.
- Wiring-free plug-in components: Custom plug-in cabinets are available with SVG plug-in modules, monitoring systems and alarm indicators; no internal wiring is needed and replacement is easy, offering a highly cost-effective solution.
- International quality and safety certification: Certified to ISO 9001:2015; every unit is fully tested before shipment to ensure electrical safety and stable performance.