How does the AHF compensate harmonics and reactive power?

Sinexcel AHF modules connect in parallel with the non-linear load and inject equal-but-opposite harmonic currents to cancel distortion at the point of common coupling. The DSP controller applies FFT or Intelligent FFT analysis to decompose the load current into harmonic, reactive, and unbalanced components — individually selectable for compensation from the 2nd through 50th harmonic orders, with adjustable amplitude per order. Full response time is under 5 ms (one-quarter of a 50 Hz cycle), ensuring real-time correction under fluctuating load conditions.

What distinguishes the Ultra, PRO, and Standard tiers?

Ultra AHF uses Silicon Carbide (SiC) MOSFETs switching at an average 40 kHz to achieve 99% efficiency in a more compact footprint. PRO AHF reduces heat loss by 33%, ventilation requirements by 53%, and physical size by 40% compared to Standard. Standard AHF covers the widest rating range (25–300 A per module) at ≥97% efficiency. All three tiers share the same control platform, communication interfaces, and parallel expansion capability.

How does modular expansion scale the system?

Individual AHF modules are available in wall-mount, rack-mount, or cabinet form factors with ratings from 25A to 300A. Modules can be paralleled without limit — a single CT feedback network coordinates multiple units. Standard cabinets house up to 8 modules (1,200 A total), with IP54 cabinet options for harsh environments. The system auto-learns grid impedance on startup and suppresses resonant frequencies to maintain THDi below 5%.