| Model: | WLD-APF |
|---|---|
| Brand: | Wanlida |
| Origin: | Made In China |
| Category: | Electronics & Electricity / Electronic Components / Filters |
| Label: | harmonic filter , active power filter , filter |
| Price: |
US $35400
/ set
|
| Min. Order: | 1 set |
| Live Chat: | Last Online:27 Oct, 2014 |
APF Technical Principle
Active power filter (APF/AHF) is new power electronic equipment which can dynamically filter harmonic with variable amplitude and frequency and compensate reactive power, it overcome the shortages of conventional LC filter and obtained the better compensation performances than passive filter.
The right diagram is schematic diagram of active power filter (APF/AHF), where, Vs is AC power supply, nonlinear load is harmonic source, it generates harmonic and consumes reactive power. APF system is composed of instruction current operational circuit and compensation current generation circuit, the instruction current operational circuit is mainly to detect current components in harmonic current and reactive power of compensation object, and the compensation current generation circuit generates equivalent compensation current with same amplitude and inverse polarity with harmonic current to filter harmonics according to instruction signal, the main circuit adopts PWM converter.
APF Functions
APF Technical Features
Technical Parameters
|
SN |
Parameters |
Value |
|
1 |
Power Supply Voltage(kV) |
0.4/0.69kV (±15%) |
|
2 |
Power Supply Frequency (Hz) |
50/60Hz |
|
3 |
Power Supply Mode |
Three-phase three wires or three-phase four wires |
|
4 |
Harmonic Compensation Components |
2~50 |
|
5 |
Response Time (ms) |
<10ms |
|
6 |
Output Current(A) |
25~750A |
|
7 |
Protection Mode |
Over current, overheat, phase loss, Error-phase, DC busbar over/under voltage, Current limit for overload etc |
|
8 |
Loss |
<5% |
|
9 |
Operation Display |
Touch screen |
|
10 |
Operation Environment |
-100C~+450C |
|
11 |
Altitude |
<1000m |
|
12 |
Relative Humidity |
<90% (250C) |
|
13 |
Noise |
<70Db |
|
14 |
Compensation capability |
All within compensation capacity |
|
15 |
Compensation Mode |
Harmonic compensation, reactive power compensation or Both |
|
16 |
Switching Frequency |
20kHz |
|
17 |
Cooling Mode |
Forced air cooling |
|
18 |
IP |
IP20 |
|
19 |
Color |
RAL7032 |
|
20 |
Feed Direction |
Top/Bottom |
|
21 |
Communication |
RS485/RS232 |
Factory Acceptance Test Platform
We built the first-class high voltage and big capacity power electronic equipments test platform to realize Factory Acceptance Testing for whole machine before delivery.
Model and Dimension
|
Model |
Output current(A) |
Dimension(W×D×H)mm |
|
WLD-APF-0.4-75-3L WLD-APF-0.4-75-4L |
75 |
800×600×2200 |
|
WLD-APF-0.4-150-3L WLD-APF-0.4-150-4L |
150 |
800×800×2200 |
|
WLD-APF-0.4-225-3L WLD-APF-0.4-225-4L |
225 |
800×800×2200 |
|
WLD-APF-0.4-300-3L WLD-APF-0.4-300-4L |
300 |
1200×1000×2200 |
|
WLD-APF-0.4-375-3L WLD-APF-0.4-375-4L |
375 |
1600×800×2200 |
|
WLD-APF-0.4-450-3L WLD-APF-0.4-450-4L |
450 |
1600×800×2200 |
|
WLD-APF-0.4-525-3L WLD-APF-0.4-525-4L |
525 |
1600×800×2200 |
|
WLD-APF-0.4-600-3L WLD-APF-0.4-600-4L |
600 |
2400×1000×2200 |
|
WLD-APF-0.4-675-3L WLD-APF-0.4-675-4L |
675 |
2400×1000×2200 |
|
WLD-APF-0.4-750-3L WLD-APF-0.4-750-4L |
750 |
2400×1000×2200 |
The above dimension is our standard cabinet for 400V APF (Active power filter) and the wall-mounted cabinet or other voltage level APF can be designed according to requirements of users.