Product Introduction
The AHF-700 700A Active Harmonic Filter (AHF) Cabinet is designed and manufactured by Shanghai Nengdu for high-reliability, high-adaptability harmonic suppression. As an essential low voltage electrical equipment for power quality management, it is precisely engineered to match your grid parameters, load profiles and harmonic mitigation requirements, with standard colors of black and silver and full ODM/OEM customization support.
This low voltage electrical equipment operates in parallel with the power grid and continuously monitors harmonic distortion. It generates reverse compensation current through an inverter to dynamically neutralize system harmonics in real time. With three-level topology and an ultra-compact modular design, the AHF-700 AHF cabinet delivers accurate, efficient and safe harmonic control.
Product Features & Characteristics
Main features of the AHF-700 700A Active Harmonic Filter Cabinet low voltage electrical equipment:
● High-Efficiency Harmonic Compensation
Covers 2nd to 51st harmonic elimination (full or directional) with a compensation rate of ≥ 95% and millisecond-level response (≤ 20 ms). No resonance risk, suitable for dynamically fluctuating loads.
● Wide Voltage and System Adaptability
Compatible with 380V-690V power distribution and three-phase three-wire/four-wire systems, with drawer, wall-mounted and vertical installation types.
● Parallel Operation for Capacity Expansion
Multiple AHF cabinets support parallel operation for capacity expansion, with customizable protection class for different sites.
● Safe and Stable Operation
Connected in parallel without modifying the original power distribution system, with built-in overvoltage, overcurrent and other protections and automatic cut-off in case of fault.
● High Efficiency and Energy Saving
Equipment efficiency ≥ 97.5% and power consumption as low as ≤ 2%, effectively saving energy in long-term operation.
● Intelligent and Easy O&M
Visual touch screen for real-time parameter monitoring, RS485 communication for remote and networked management, and industrial-grade components requiring no frequent daily maintenance.
● Advanced Three-Level Topology
Ultra-compact modular design with a maximum switching frequency of 25.6 kHz and industry-leading thermal dissipation technology.
● Optimal Power Quality Control
Supports continuous power factor correction with capacitive and inductive reactive power compensation, maintaining power factor within -1.0 ~ +1.0, controlling three-phase unbalance to less than 5% and reducing neutral current.
Why Customers Choose Us
Shanghai Nengdu supplies this AHF cabinet as part of its complete low voltage electrical equipment portfolio, with factory-direct prices and one-stop after-sales service.
- Shanghai Nengdu is backed by a dedicated team of senior power electronics engineers and a state-of-the-art R&D and design center.
- Advanced equipment, professional team and strict QC with full service and custom solutions; welcome to visit us.
- Customized high-performance AHF cabinet solutions precisely matched to your unique grid parameters, load profiles and harmonic mitigation requirements.
- ODM and OEM customization supported, available in standard colors such as black and silver.
- 36-month warranty for core components against non-human damage.
- Widely used in data centers, rail transit, electronic factories and other places with heavy harmonic pollution.
Technical Parameter Table
Technical specifications of the AHF-700 700A low voltage electrical equipment:
| Model Number |
AHF-700 |
| Product Type |
Active Harmonic Filter (AHF) Cabinet |
| Rated Voltage |
400V AC standard (380V-690V compatible) |
| Wiring System |
Three-phase three-wire / three-phase four-wire |
| Rated Filter Current |
700 A |
| Filtering Range |
2nd - 51st harmonics (full or directional) |
| Compensation Rate |
≥ 95% |
| Response Time |
≤ 20 ms |
| Maximum Switching Frequency |
25.6 kHz |
| Equipment Efficiency |
≥ 97.5% |
| Power Consumption |
≤ 2% of rated capacity |
| Reactive Compensation |
Continuous capacitive and inductive, power factor -1.0 ~ +1.0 |
| Communication Interface |
RS485 (Modbus), optional Ethernet/4G |
| Display |
Visual touch screen |
| Protection Functions |
Overvoltage, overcurrent, over-temperature, short circuit, automatic fault cut-off |
| Enclosure Protection Degree |
Customizable (IP20 - IP54) |
| Warranty |
36 months for core components |
Product Images
High-resolution photos, dimension drawings and the full datasheet of this AHF-700 low voltage electrical equipment are available. Please contact our sales team and we will send them to you within 24 hours.
FAQ
Q: Why choose Shanghai Nengdu Active Harmonic Filter Cabinet?
A: Advanced equipment, a professional team and strict QC, with full service and custom solutions for low voltage electrical equipment. Welcome to visit us.
Q: What is the core function of the Active Harmonic Filter Cabinet?
A: Real-time detection and cancellation of 2nd to 51st harmonics, improving power quality, protecting low voltage electrical equipment and saving energy.
Q: What are the applicable scenarios of the Active Harmonic Filter Cabinet?
A: Data centers, rail transit, electronic factories and other places with heavy harmonic pollution where low voltage electrical equipment needs reliable protection.
Q: What are the core technical parameters?
A: Rated voltage, rated current, filtering range (2nd to 51st), response time, rejection rate, CT ratio, protection class, etc.
Q: What is the warranty period and scope?
A: 36-month warranty for core components against non-human damage of this low voltage electrical equipment.
