HJ-APF Series Active Power Filter
Up to 300A per Module / 3-Level Topology / THDi < 5%
The HJ-APF Series Active Power Filter is an advanced, IGBT-based power electronics solution designed to dynamically eradicate electrical grid pollution. Utilizing high-speed DSP processing, it monitors load currents in real-time and injects exact opposite-phase currents to cancel out harmful harmonics, correct power factor, and balance 3-phase loads, ensuring ultimate power quality for your most sensitive equipment.
Ideal for Harmonic-Rich & Mission-Critical Facilities:
- ✓ Data Centers (IDC), Telecom Hubs & Hospitals
- ✓ Semiconductor & Precision Manufacturing Plants
- ✓ Facilities with Heavy VFD (Variable Frequency Drive) Usage
- ✓ Rail Transit, Airports & Modern Commercial Buildings
1. Advanced 3-Level IGBT Topology & DSP Control
Powered by high-performance Digital Signal Processors (DSP) and a cutting-edge 3-level inverter topology, the HJ-APF operates with exceptional efficiency (>97%). It detects load variations and reacts with an instantaneous response time of < 50µs (full response < 5ms), dynamically filtering out harmonics from the 2nd up to the 50th order.
2. 3-in-1 Comprehensive Power Quality Optimization
More than just a filter. The HJ-APF delivers a triple-action performance: it completely neutralizes harmonic distortion (achieving THDi ≤ 5%), dynamically compensates for both inductive and capacitive reactive power (reaching PF ≥ 0.99), and strictly corrects 3-phase current unbalance, drastically reducing transformer heat and energy loss.
3. Modular N+1 Redundancy & Flexible Installation
Scale your power quality seamlessly. The system utilizes an ultra-compact modular architecture. Available in Wall-mounted, Rack-mounted, or standard Cabinet-mounted configurations, you can easily parallel up to 8 modules to meet expanding load demands while establishing a highly reliable N+1 redundant system.
4. Smart HMI & SCADA-Ready Connectivity
Each unit features an intuitive LCD touchscreen HMI for real-time waveform visualization and parameter adjustment. Equipped with standard RS485 and Ethernet interfaces, it supports industrial protocols, providing a robust hardware foundation for your local engineers to integrate the APF into facility SCADA or building management systems.
Global Factory Acceptance & Support
Every HJ-APF module undergoes rigorous full-load thermal testing, harmonic mitigation verification, and aging tests before dispatch. We provide comprehensive installation manuals and remote technical guidance to ensure your local electrical teams can effortlessly commission the active filters.
Technical Specifications
(Note: Parameters represent standard module capabilities. Total system capacity can be scaled by paralleling multiple modules.)
| Electrical Parameters | |
| Rated Working Voltage | 380V ± 20% (400V / 480V / 690V available upon request) |
|---|---|
| Rated Grid Frequency | 50 Hz / 60 Hz ± 5 Hz |
| Compensation Current per Module | 35A / 50A / 75A / 100A / 150A / 200A / 300A |
| Wiring Network Configurations | 3-Phase 3-Wire / 3-Phase 4-Wire |
| Harmonic Filtering Range | 2nd to 50th Harmonics (Selectable or All) |
| Target Power Factor (PF) | Adjustable from -1 to +1 (Inductive & Capacitive) |
| Response Time | Instantaneous < 50 µs / Full Response < 5 ms |
| Inverter Topology & Frequency | 3-Level Topology / 20 kHz Switching Frequency |
| Parallel Expansion | Up to 8 modules in parallel |
| Installation Type Options | Rack-Mounted, Wall-Mounted, Floor Cabinet |
Normal Operating Environment
- Ambient Temperature: -10°C to +40°C.
- Altitude: ≤ 1500m without derating. (Derates 1% for every 100m between 1500m and 4000m).
- Relative Humidity: ≤ 95%, non-condensing.
- Cooling System: Built-in intelligent forced air cooling.
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