
Power Quality Filter SiC AHF
✅ High Efficiency & Stability
Wide filtering range: The harmonic rejection rate for 2nd-50th order harmonics reaches up to 97%.
Delivers ultra-low current distortion, with THDi ≤ 5%.
✅ Safe & Reliable
Comprehensive software and hardware protection mechanisms.
Stable operation even in harsh grid conditions.
✅ Flexible Application
Comprehensive governance for harmonics, reactive power, three-phase imbalance, and neutral wire issues.
Multiple operation modes available for combined use.
✅ High Adaptability
Suitable for grid environments with THD ≤ 10%.
Supports precise compensation for low-current loads.
- Product Introduction
Power quality filter SiC AHF is a cutting-edge intelligent power quality management solution, designed to solve harmonic pollution, reactive power deficiency, three-phase unbalance and excessive neutral current in modern power systems.
With real-time detection and high-speed compensation, it accurately suppresses 2nd-50th harmonics (up to 97% rejection rate) and limits THD to ≤5%, eliminating harmonic interference at the source.
Featuring full software-hardware protection, Power quality filter SiC AHF operates reliably in harsh grids (THD ≤10%).Power quality filter SiC AHF is ideal for industrial loads, commercial buildings, data centers and PV grid connection. Its flexible operation modes and refined small-current compensation adapt to diverse system needs, ensuring a safe, efficient and sustainable power environment.
Technical Parameters
Power quality filter SiC AHF Technical Data & Specifications
Electrical specifications
| Parameter | Specification |
|---|---|
| Rated voltage | 400V |
| Input voltage range | -40% ~ +20% |
| Single module capacity | 50A,75A,100A,150A |
| Frequency | 50/60Hz (-10% ~ +10%) |
| Filtering range | 2nd to 50th order selectable, single order selectable |
| Harmonic filtering capability | Exceeds 98% at rated load |
| CT installation method | Open loop or closed loop (open loop recommended for parallel operation) |
| Response time | ≤2ms |
| Wiring system | Three-phase three-wire / Three-phase four-wire |
| Overload capacity | Continuous operation at 110% rated current, 1min operation at 120% rated current |
| Circuit topology | Three-level topology |
| Switching frequency | 20kHz |
| Parallel Operation Quantity | ≤20 modules in parallel |
| Redundance | Any unit can act as an independent unit. |
| Efficiency | ≥99% |
| Power factor control | Full compensation for inductive or capacitive currents: 0–100% |
| Compensation effect | 100% compensation for unbalanced capacitance and power; continuously adjustable between capacitive and inductive |
Display functions
| Parameter | Specification |
|---|---|
| Display | 1.8/4.3/7-inch screen (optional) |
| Parameter | Specification |
|---|---|
| Communication Interface | RS485 / CAN port ,CAN protocol with RJ45 port for inter-module communication |
| Parameter | Specification |
|---|---|
| Noise | ≤50dB (depending on module or load conditions) |
| Altitude | Derated operation above 1500m |
| Ambient temperature | Operating temperature: -25 to 55°C, derated operation above 45°C Storage temperature: -45 to 70°C |
| Humidity | 5% ~ 95% (RH), no condensation |
| Levels of protection | IP20 |
| General structure and safety | EN62477-1 (2012), EN61439-1 (2011) |
| EMC | EN/IEC61000-6-4, Class A |
| Certification | CE, CQC |
Utilizing advanced Silicon Carbide (SiC) MOSFET technology, this power quality filter SiC AHF delivers exceptional performance characterized by high voltage resistance, high switching frequency, and ultra-high efficiency, with outstanding on-resistance and voltage tolerance.
Core Strength
- High-Efficiency Filtering: Suppresses 2nd to 50th order harmonics with over 98% elimination efficiency, limits THD to ≤5%, and provides all-in-one governance for harmonics, reactive power, and three-phase unbalance.
- SiC Advanced Technology: Equipped with SiC MOSFET + three-level topology, ensuring a rapid response time of ≤2ms, ultra-high efficiency of ≥99%, high frequency operation, and outstanding energy savings.
- Flexible Scalability: Modular design with up to 20 units in parallel; suitable for a full range of scenarios including industrial loads, commercial buildings, data centers, and PV grid-connected systems.
- Stable & Reliable: Operates reliably under wide temperature and voltage ranges, featuring comprehensive software and hardware protection. Certified by CE and CQC, globally recognized for market application.
Connection Diagram

Application Senarios

Service
1.Pre-sales Service
- Gain an in-depth understanding of customer requirements, provide professional technical consulting and product information, and develop optimal customized solutions for clients.
2.In-sale Service
- Order Processing: Respond promptly to customer orders and ensure order accuracy.
- Production Coordination: Collaborate closely with the production team to track production progress and guarantee on-time completion.
- Logistics Arrangement: Select reliable logistics partners to ensure safe and punctual product delivery.
- Installation Guidance: Offer detailed installation instructions and on-site technical support to ensure proper product installation and commissioning.
3.After-sales Service
- Provide round-the-clock technical support via telephone, email, and remote assistance.
- Continuously optimize product performance and improve service quality.
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