Active Harmonic Filter AHF

JN-APF 30A ~ 200A series Active harmonic filter AHF can be called as APF(Active power filter) also,it has complete independent intellectual property rights for suppressing power harmonics and dynamic reactive power compensation, specifications including 30A, 50A, 75A, 100A, 150A, 200A.

APF functions: harmonic filter, reactive power compensation, three-phase imbalance compensation, and it can be flexibly configured into a single phase, group mode compensation, it is widely used to improve the power quality of 0.4kV power supply system.

 

 

Item		Product description
Electric parameter	Capacity (according to the model)	30A/50A/75A/100A/150A/200A
	Input line voltage	380V ±15%
	compensation current (per phase)	30A-150A (according to the model)
	Compensation range	2~60 times (configurable)
	Full response time	≤10 ms(millisecond)
	Efficiency	Up to 98%
	Dry contact signals	EPO/DI/DO
Communication interface	Communication protocol	RS232/RS485/Ethernet/GPRS
Environmental requirement	Operating temperature	-45°C ~ +55°C
Structure	Module weight	20KG~46KG
	Cooling way	Smart air cooling

 

 

APF operates by real-time detection and dynamic compensation of disturbances in the power system:

Step 1: Measures current harmonics/unbalance using FFT (Fast Fourier Transform) or PQ theory.

Step 2: Generates an opposite-phase compensation current using IGBT-based inverters.

Step 3: Injects the compensating current into the grid, canceling out harmonics and reactive power.

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Two installation methods of the Active harmonic filter AHF: Rack-mounted type, Wall-mounted type

 

 

Installation methods	Rack-mounted					wall-mounted
Size (mm)	30A/50A	75A	100A	150A	200A	30A/50A	75A	100A	150A	200A
A	359	399	484	554	See pic	521.5	545	611	621	See pic
B	341	381	466	536		500	520	575	585
C	315	355	440	510		300	360	300	300
D	200	200	232	250		120.5	145.5	137.5	142.5
E	89	89	89	89		378	419	504	574
F	55.5	55.5	71.5	80.5		350	390	475	545
G	534.5	615	646	656		315	355	440	510
H	500	555	575	585		200	200	232	250
K	13	13	35	35		/	/	/	/

Note: Above parameters are typical values for reference only, which can be customized according to customer's requirements, we reserves the right to change the data.

 

 

The differences between rack-mounted and wall-mounted Active Harmonic Filter AHF systems are as follows:

1. Installation Method

Rack-Mounted: Designed to be placed in cabinets or racks, suitable for large-scale power systems or data centers.

Wall-Mounted: Installed directly on walls, saving floor space, ideal for smaller setups or office environments.

2. Size and Weight

Rack-Mounted: Generally larger and heavier, capable of handling more functions and higher power levels.

Wall-Mounted: Smaller and lighter, easier to install and remove.

3. Heat Dissipation

Rack-Mounted: Typically has better heat dissipation designs, suitable for long-term high-load operation.

Wall-Mounted: Relatively weaker heat dissipation, suitable for lower power applications.

4. Application Scenarios

Rack-Mounted: Used in data centers, large industrial equipment, and other high-power, high-performance settings.

Wall-Mounted: Suitable for small businesses, homes, or small equipment power management.

5. Cost

Rack-Mounted: Usually more expensive due to more complex designs and higher power requirements.

Wall-Mounted: Relatively lower cost, suitable for users with budget constraints.

When choosing between the two, consider specific needs, space limitations, and budget constraints.

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Industrial Automation: It improves power quality, reduces harmonic distortion, and enhances equipment efficiency, protecting motors and inverters.

Data Centers: In high-density computing environments, APF effectively lowers harmonics, ensuring stable and reliable power supply.

Renewable Energy: In solar and wind energy systems, APF helps optimize power output and improve power quality.

Commercial Buildings: It enhances the power quality of lighting and HVAC systems, reduces energy consumption, and extends equipment lifespan.

Electric Transportation: In EV charging stations, APF minimizes harmonics during the charging process, improving charging efficiency.

 

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