Dlapf Series of Active Power Filter
|FOB Price:||Get Latest Price|
|Min. Order:||1 Piece|
|Production Capacity:||1000 Sets Per Year|
|Payment Terms:||L/C, T/T, Western Union, Money Gram|
- Model NO.: APF
- Protection: Corrosion Resistance
- Housing: Steel Plate
- Transport Package: Wooden Case
- Origin: Xiangyang, Hubei Province, China
- Certification: ISO9001, CCC
- Installation: Vertical
- Trademark: Big pawer
- Specification: CE, ISO9001
- HS Code: 8537109090
APF is a kind of power electrical device. Its fundamental is to detect harmonic current from compensation object, then generate anti-harmonic compensation current, only leave the fundamental current in power system. APF device attracts a lot of attention. This device is an ideal device to prevent power grid "pollution" and improve power quality and save energy.
2.1 site with frequency converter
2.2 site with imbalance loads
2.3 steel company
2.4 nonferrous metallurgy
2.5 harbor machine
2.6 electric railway
2.7 high precision automatic production line
2.8 CBD with energy saving lamp and air conditioners
3. Technical features
APF series active power filter reached international advanced technology level. It can meet city power grid reformrequirements. It provide standard 3 phase symmetry sine voltage, compensates large capacity reactive power, harmonic current and negative-sequence current, lowers line loss.
3.1 Combine active power filter and passive power filter
3.2 DSP+FPGA all digital control system design
3.3 Using advanced compensation components separation method, quick DSP operation process, system trail time is approximately 20ms.
3.4 Equip perfect user interface, meets the requirements of local and remote control.
3.5 Automatic synchronization, no manual operation needed.
3.6 Modularized construction design, expandable capacity for user requirements.
3.7 Perfect protection function including overload, over voltage, under voltage, over current, temperature protection and self diagnosis.
3.8 Perfectly suitable for compensation of all harmonic, negative sequence and reactive power generated by various high-power non-linear load.
3.9 According to the requirements of reactive power compensation, harmonic compensation and negative sequence compensation, device can be uniformly set to multi-functional or single functional.
4. Technical parameters
4.1 working principle
4.1.1 APF series active power filter is parallel with system, real-time monitoring the harmonic and reactive component of load, using PWM conversion technology, inject current, which is equile to the harmonic and reactive component in value, reversed in direction, to power distribution system and realize the functions of harmonic filteration and dynamic reactive compensation.
Figure 1 is schematic diagram of APF series parallel active power filter, APF can be called arbitrary wave generator, or controllable non-linear components. APF can compensate any harmonic current.
Figure 1 APF schematic diagram
Figure 2 APF schematic diagram
Figure 3 APF control circuit
4.2 Main technical parameters
|Product standard||Q/XDL 17-2011|
|Installation site||In door cabinet|
|Topological structure||Power unit parallel to PWM power source|
|Network voltage||(+10%-20%)rated voltage,frequency 50Hz(±5%)|
|Compensation harmonic range||2~50 times|
|Active power loss||<5%|
|Reliability index(mean time between failures)||25000 hours|
|Power unit control signal connection||Optical cable|
|Noise grade||<60dBA||(1 meter distance)|
|Cooling||Forced air cooling|
|Operating mode||Touch screen|
|Interface language||Chinese(default) English optional|
|Earthing requirement||Earthing resistance<1Ω|
4.3 Type explanation
Auxiliary code: 3P-3 phase 3 line, 4P-3 phase 4 line
Example: Type APF1-100/0.4-3P, shows the APF is applicable for 0.4 kV 3-phase 3 line power grid, compensation current is 100A.
|Type||Compensation current (A)||Dimensions(mm)|
For better active power filtration effort, the rated capacity of APF should be determined according to actual power grid conditions. Therefore the harmonic current total valid value or specified harmonic current valid value data should be provided before ordering.