NewTrend · SiC active harmonic filter
Product overview
NewTrend Y-AHF-SiC uses silicon-carbide power devices for three-phase harmonic-current compensation. Rated compensation current is 100A or 150A on a 220VAC or 380VAC grid. It supports 2nd–50th order harmonic compensation, three-phase unbalance correction and neutral-line filtering on applicable installations. Switching frequency is 30kHz; catalogue overall efficiency is at least 97%, with peak efficiency at least 98.5%.
Technical selection summary
| Model | Y-AHF-SiC |
|---|---|
| Rated current meaning | Harmonic-compensation current, not feeder load-current rating |
| Rated compensation currents | 100A / 150A |
| Operating voltage | AC 220V / AC 380V, -20% to +20% |
| Grid arrangement | 3P3W / 3P4W |
| Frequency | 50/60Hz; operating range 45–63Hz |
| Function | Harmonic compensation / harmonic plus three-phase unbalance compensation |
| Harmonic compensation range | 2nd–50th order; individually adjustable compensation rate |
| Current harmonic compensation rate | ≥95%, catalogue value |
| Residual unbalance | ≤5%, catalogue value |
| Neutral-line filtering capacity | 3× phase filtering capacity; neutral-connected applications |
| Full response time | <40ms |
| Overall efficiency | ≥97%; peak efficiency ≥98.5% |
| Switching frequency | 30kHz |
| Current limiting | 100% current-limited output setting supported |
| Overload capability | 1.2× rated for 60 seconds |
| Communication | 2× RS485; Wi-Fi supported |
| Mounting / cable entry | Wall-mounted: top entry; rack-mounted: rear entry |
| Protection rating | IP20; IP54 customization described separately in catalogue |
| Cooling / noise | Forced-air cooling; ≤65dB |
| Ambient temperature | -10 to +50°C; above 40°C derating, catalogue capacity reduction ≤30% |
| Relative humidity | ≤90%, no condensation at monthly minimum 25°C |
| Altitude | <2000m; above 2000m derate per GB/T 3859.2 |
| Pollution degree | ≤Class III |
| Protection functions | Overload, software/hardware overcurrent, grid over-/undervoltage, voltage unbalance, power-supply failure, overtemperature, abnormal frequency, short circuit and resonance protection |
| Catalogue enclosure outline | 500 × 600 × 100mm; confirm exact mounting arrangement |
| Parallel operation | Multiple modules supported |
Operation
- The AHF connects in parallel with the load and injects compensating current opposite to the detected harmonic current. The rating is compensation current, not feeder load current.
- Select harmonic compensation or harmonic compensation with three-phase unbalance correction. Neutral-line filtering applies to installations with a neutral conductor.
- Individual harmonic compensation settings cover the 2nd through 50th orders. Final system THDi depends on load, current sensing and installation.
Typical applications
- Industrial feeders with drives, rectifiers and other nonlinear loads
- Commercial buildings, data centres and UPS/IT-load distribution
- Neutral-connected three-phase installations requiring harmonic and load-unbalance compensation
View or download Y-AHF-SiC original catalogue, September 2026 (PDF)
Product reference images and drawings
Original AHF-PLUS 100A/150A and 220V/380V technical table
Main and gallery photographs show the exact SiC wall-mounted and rack-mounted family enclosures from the original catalogue, with their original warning labels. The 1200A cabinet figure in the family catalogue is a multi-module system capacity, not this single-module rating. Installation and wiring must be performed by qualified electricians.
