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| Categories | Active Harmonic Filter AHF |
|---|---|
| Type: | Active Harmonic Filter AHF |
| Operating Temperature: | -10 deg C to +45 deg C |
| Wiring System: | Three-phase four-wire |
| Response Time: | < 10ms |
| Noise Level: | No more than 55dB |
| Harmonic Compensation Range: | 2nd to 50th order |
| Protection Degree: | IP54 |
| Parallel Expansion: | Up to 10 cabinets in parallel |
| Overload Capacity: | 110% continuous, 120% 1min |
| Brand Name: | NengDu |
| Certification: | CE, ISO 9001:2015 |
| MOQ: | 1 Set |
| Delivery Time: | 7-15 days for standard orders |
| Model: | Active Harmonic Filter AHF |
| Dimensions (W x D x H): | 600 x 600 x 1200mm |
| Packaging Details: | Export wooden case with foam shock-proof protection |
| System Frequency: | 50/60Hz |
| Display: | 10 inch LCD touch screen |
| Filtering Performance: | THDi < 5% |
| Efficiency: | >= 97% |
| Payment Terms: | T/T,L/C |
| Weight: | 95kg |
| Price: | Negotiable |
| Rated Current: | 75A |
| Place of Origin: | Shanghai, China |
| Supply Ability: | 10000 Sets per Month |
| Communication: | RS485 / Modbus-RTU |
| Model Number: | ND-APF-100-4L |
| Rated Voltage: | 380V AC (3P4W) |
| Company Info. |
| Shanghai Nengdu New Energy Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
The ND-APF-75-FS is a 75A floor-standing cabinet developed by
Shanghai NengDu for low voltage power quality correction. As a true
Active Harmonic Filter AHF, it detects harmonic currents in real
time and injects equal and opposite compensation currents into the
network, canceling harmonics at the source. This Active Harmonic
Filter AHF eliminates harmonic oscillations, reduces electricity
costs and protects transformers, cables, capacitors and motors from
overheating and premature failure.
The ND-APF-75-FS Active Harmonic Filter AHF is a multifunctional
solution based on a high-speed DSP controller and IGBT power stage.
It can be easily customized to provide power factor improvement,
voltage change control, flicker mitigation and load balancing
functions, greatly improving the power quality in the network while
reducing harmonic pollution. The floor-standing cabinet integrates
the Active Harmonic Filter AHF power stage, control system and
protection devices in a single IP54 enclosure. It is delivered
fully wired and tested, ready to be connected to the low voltage
busbar, which shortens on-site commissioning time dramatically.
Every Active Harmonic Filter AHF unit is factory calibrated and
fully tested before delivery. The user-friendly touch screen
displays real-time harmonic spectra, compensation current, system
voltage and fault records, while the RS485 interface allows remote
monitoring and integration with plant power management systems.
Key Features
Precise harmonic filtering: Effectively eliminates 2nd to 50th order harmonics with high accuracy, keeping THDi below 5 percent even under rapidly changing loads.
Fast response and dynamic compensation: Real-time current detection with a response time of less than 10ms ensures the Active Harmonic Filter AHF reacts instantly to load changes.
Multi-function integration: Simultaneously compensates harmonics, reactive power and three-phase unbalance, improving overall power quality in the network.
High safety and stability: Active injection technology creates zero resonance risk with the power system, protecting sensitive equipment from harmonic amplification.
Compact size and flexible installation: Small footprint and flexible mounting options make the Active Harmonic Filter AHF suitable for limited spaces and retrofit projects.
Strong adaptability: Automatic adjustment under varying load conditions keeps filtering performance stable from light load to full load.
Energy saving and equipment protection: Reduces power loss in transformers, cables and motors, and extends the service life of electrical equipment.
IP54 dust and splash protection: Suitable for dusty workshops, textile mills and semi-outdoor electrical rooms.
Multi-function compensation: Simultaneously mitigates harmonics, corrects reactive power and balances three-phase loads in one cabinet.
Ready-to-connect cabinet: Factory wired, tested and shipped with a fully integrated cooling and protection system.
Why Choose Us| Parameter | Specification |
|---|---|
| Model | ND-APF-75-FS |
| Type | Active Harmonic Filter AHF (落地柜式) |
| Rated Current | 75A |
| Rated Voltage | 380V AC (3P4W) |
| Wiring System | Three-phase four-wire |
| System Frequency | 50/60Hz |
| Harmonic Compensation Range | 2nd to 50th order, selectable |
| Filtering Performance | THDi < 5% at full compensation |
| Response Time | Less than 10ms |
| Overload Capacity | 110% continuous, 120% for 1 minute |
| Reactive Power Compensation | Optional, 0 to 100% adjustable |
| Efficiency | Greater than or equal to 97% |
| Cooling Method | Forced air cooling with dust-proof filter |
| Protection Degree | IP54 |
| Display | 10 inch LCD touch screen |
| Communication Interface | RS485 / Modbus-RTU |
| Parallel Expansion | Up to 10 cabinets in parallel |
| Noise Level | No more than 55dB |
| Operating Temperature | -10°C to +45°C |
| Relative Humidity | 0 to 95%, non-condensing |
| Dimensions (W x D x H) | 600 x 600 x 1200mm |
| Weight | 95kg |
| Standards | GB/T 14549, IEC 61000-4-30, CE |
The floor-standing Active Harmonic Filter AHF serves medium-size
industrial plants, commercial complexes, hospitals, stadiums and
water treatment facilities where centralized power quality
correction and easy installation are the priorities.
The Active Harmonic Filter AHF supports flexible scaling: parallel
modules can be added for easy capacity expansion without system
restructuring, making it ideal for long-term scalability in both
new projects and retrofits.
Each unit is packed in an export-grade wooden case with foam shock-proof protection. Quality assurance includes 100 percent pre-shipment inspection, a 36-month warranty and lifelong technical support. Documentation such as test reports, manuals and CE certificates is provided with every shipment.
FAQQ1: Why choose NengDu Active Harmonic Filter AHF products?
Advanced production equipment, strict quality control and a
professional power electronics team. Factory visits are welcome at
any time.
Q2: Are you a manufacturer or a trader?
We are an industry-trade integrated manufacturer specializing in
NengDu Active Harmonic Filter AHF research, development and
production in Shanghai, China.
Q3: Is OEM/ODM service available?
Yes. Custom logo, packaging and functions are supported according
to your requirements.
Q4: Can you provide samples?
Yes, paid samples are provided. The client covers the sample and
shipping cost, and the sample fee is deductible from bulk orders.
Q5: What is the lead time?
Standard lead time is 7 to 15 days, subject to order quantity and
configuration.
Q6: What is the warranty period?
100 percent pre-shipment inspection is performed, and a 36-month
warranty is provided for the Active Harmonic Filter AHF.
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