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The Active Harmonic Filter (AHF) is an advanced power quality solution designed to eliminate harmonic distortions, improve power factor, and enhance energy efficiency. It dynamically compensates for harmonic currents in industrial, commercial, and renewable energy applications, ensuring stable and efficient power distribution.
Eliminates 2nd-50th order harmonics
Reduces voltage and current distortion
Improves power factor (0.8-1.0 adjustable)
High-speed DSP & FPGA processing for precise control
<5ms response time for real-time compensation
Adaptive current tracking with optimized efficiency
Uses IGBT-based power module for stable compensation
Generates equal but opposite harmonic currents to neutralize distortions
Ensures seamless integration with existing power networks
Output filtering circuit for smooth power injection
Transformer-based coupling for noise-free operation
Compatible with varied industrial loads
Overcurrent, overvoltage, and thermal protection for enhanced safety
Automated fault detection & alarm system
Remote monitoring via RS485, Modbus, and CAN interfaces
Industrial Power Systems – Reduces harmonic interference in manufacturing plants and automation facilities
Data Centers – Ensures stable power supply for mission-critical servers and IT infrastructure
Renewable Energy – Optimizes power output from solar and wind energy systems
Commercial Buildings – Enhances energy efficiency in hospitals, shopping malls, and airports
Variable Frequency Drives (VFDs) – Prevents power quality issues in motor control applications
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 | |||
✅ Real-time harmonic cancellation for superior power quality
✅ Smart power factor correction to optimize efficiency
✅ Highly reliable IGBT-based compensation system
✅ Modular design for easy scalability and integration
✅ Global compliance with CE and safety standards
At ARK Technology, we set industry benchmarks in power quality solutions. Our cutting-edge R&D ensures top-tier performance and reliability. With a strong presence across Europe, Asia, and beyond, we guarantee fast delivery (within 15 days) and 24/7 customer support. All products are CE certified, reflecting our dedication to regulatory compliance and innovation.
Our Active Harmonic Filter (AHF) is the ultimate solution for industries looking to enhance power quality, minimize energy loss, and extend equipment lifespan. With a commitment to excellence and innovation, ARK Technology provides world-class solutions tailored to diverse power environments.
Get in touch today to explore how our AHF can revolutionize your energy systems!