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AHF
ARK
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As a trusted global supplier of advanced power quality solutions, we specialize in delivering AHF Active Harmonic Filters—high-performance, modular devices designed to tackle harmonic distortions, reactive power issues, and three-phase unbalance in low/high voltage systems. Perfect for wholesale buyers, our AHF series combines cutting-edge technology with cost-effective pricing, ensuring reliable power systems for industrial, commercial, and utility applications.
Eliminate Harmonic Distortions: Targets harmonics (2nd–50th order), interharmonics, and notching by injecting real-time compensating currents (equal magnitude, opposite phase).
Optimize Power Factor: Corrects reactive power to improve system efficiency and reduce energy losses.
Balance Three-Phase Systems: Stabilizes voltage fluctuations and unbalanced loads, extending equipment lifespan and enhancing grid stability.
Compliance Assurance: Meets strict global standards (IEEE 519, IEC 61000) for safe, reliable operation.
Precision Detection: External CTs monitor load currents, while FFT algorithms rapidly analyze harmonic content.
Dynamic Compensation: PWM signals drive IGBTs at 20kHz to generate instant counter-currents, with real-time feedback for millisecond-level adjustments (response time <40ms).
Modular Design: Scalable architecture supports parallel operation (up to 8 power modules) for flexible capacity expansion in large systems.
Harmonic Compensation Rate: >92% for cleaner power output.
Operating Temperature: -20°C to +50°C (industrial-grade reliability).
Communication: Supports RS485, Modbus, and Profibus for easy integration with smart grids.
Industrial: Motors, variable frequency drives (VFDs), welding equipment, and manufacturing lines.
Commercial: Data centers, office complexes, and HVAC systems.
Renewables: Solar/inverter grids, wind farms, and energy storage facilities.
Utilities: Distribution networks, substations, and critical infrastructure.
Bulk discounts for orders of 10+ units—ideal for distributors, EPC contractors, and OEM partners.
Customized quotes for large-scale projects (50+ units) with volume-based savings.
Customization Options: Modify dimensions, voltage ratings, or communication protocols to meet project-specific needs.
Private Labeling: Brand the filters with your logo for market differentiation (MOQ 100+).
Product model definition
AHF product models consist of:
• AHF- Capacity - Voltage level - Installation mode
◦ Capacity: such as 050, 075, 100, etc., indicates the rated compensation capacity (A).
◦ Voltage level: such as 0.4 (400V), 0.5 (500V), 0.69 (690V).
◦ Installation mode: W (wall-mounted), R (rack-mounted), C (cabinet type).
TYPE | Series 220V | Series 400V | Series 500V | Series 690V |
Max neutral wire current | 23A | 15A 、25A 、50A、 75A 、100A 、150A | 100A | 100A |
Nominal voltage | AC220V(-20%~+20%) | AC380V(-20%~+20%) | AC500V(-20%~+20%) | AC690V(-20%~+20%) |
Rated frequency | 50Hz±5% | |||
Network | Single phase | Three-phase three-wire/three-phase four-wire | ||
Response time | <40ms | |||
Harmonics filtering | 2th to 50th Harmonics,The number of compensation can be selected, and the range of single compensation can be adjusted | |||
Harmonic compensation rate | >92% | |||
Neutral line filtering capability | / | The filtering capacity of three-phase four-wire neutral line is 3 times of that of phase filtering | ||
machine efficiency | >97% | |||
Switching frequency | 32kHz | 16kHz | 12.8kHz | 12 .8kHz |
Feature selection | Deal with harmonics/Deal with harmonics and reactive power | Deal with harmonics/Deal with harmonics and reactive power/ Deal with harmonics and three-phase unbalance /Three options | ||
Numbers in parallel | No limitation. A single centralized monitoring module can be equipped with up to 8 power modules | |||
Communication methods | Two-channel RS485 communication interface (support GPRS/WIFI wireless communication) | |||
Altitude without derating | <2000m | |||
Temperature | -20~+50°C | |||
Humidity | <90% RH,The average monthly minimum temperature is 25℃ without condensation on the surface | |||
Pollution level | Below level Ⅲ | |||
Protection function | Overload protection, hardware over-current protection, over-voltage protection, power failure | |||
Noise | <50dB | <60dB | <65dB | |
Installation | Rack/wall hanging | Rack | ||
Into the way of line | Back entry (rack type), top entry (wall-mounted) | Top entry | ||
Protection grade | IP20 | |||