An AHF Panel (Active Harmonic Filter Panel) uses advanced IGBT-based active filter technology to inject counter harmonics and effectively cancel out non-linear currents generated by VFDs, UPS systems, SMPS gear, battery chargers, and other electronic loads. By doing so, it significantly reduces current and voltage Total Harmonic Distortion (THD) to within configured limits, thereby improving overall power quality. In addition to harmonic mitigation, the panel can also perform real-time power factor correction and phase imbalance compensation, making it a multi-functional solution for modern industrial and commercial electrical systems. The AHF Panel protects sensitive equipment from overheating, nuisance tripping, and premature failure caused by harmonic distortion while ensuring compliance with utility norms, IEEE-519 standards, and site-specific harmonic guidelines.
AHF Panel Key Feature
- Real time harmonic compensation typically up to higher orders
- Configurable target THD with closed loop control
- Power factor improvement and unbalance compensation modes
- Parallel expandability for higher ratings
- 3 wire or 4 wire operation with neutral compensation option
- Event logs, waveform capture and remote monitoring via Modbus or Ethernet
- Overtemperature, overcurrent and DC link protections
- IP31 to IP54 options and robust thermal management
AHF Panel Process
- Power quality audit and THD measurement
- Sizing of filter rating in amperes and selection of compensation modes
- SLD, GA and thermal design with clearances and ventilation
- Enclosure and busbar fabrication, EMC layout practices
- AHF module integration, CT placement and control wiring
- Parameter setup target THD, selective harmonic set and PF mode
- Routine tests, PQ report baseline and FAT
- On site commissioning and verification report
AHF Panel Industries
- Facilities with high VFD and UPS density such as data centers
- HVAC plants, elevators and building automation
- Printing, plastics, CNC and precision manufacturing
- Oil and gas, chemical and refinery utilities
- Commercial complexes and hospitals targeting better power quality