Zhuhai Wanlida Electrical Automation Co., Ltd.

China Manufacturer with main products: AC Drive, Variable Frequency Drive, Soft Starter, Static Var Generator, SVG/Statcom, Active Power Filter, Protection Relay, SVC

Home  >Products Catalog > Wanlida Harmonic Filter/50A~600A

Wanlida Harmonic Filter/50A~600A

FOB Price: 9,200.00 - 35,400.00 USD/Set
Supply Ability: 1,000 Set/Sets per Year
Shipping: By sea
Payment Terms: L/C, T/T
In Stock
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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Guangdong in China
Packaging Details: Wooden case (Fumigation)

Quick Details

  • ac harmonic filter: active power filter

Specifications

Technical Principle
Active harmonic 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 harmonic filter (APF/AHF), where, Vs is AC power supply, nonlinear load is harmonic source, it generates harmonic and consumes reactive power. AHF 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.  
 
AHF Functions
  • Reduce harmonic distortion
  • Improve power factor
  • Reduce line loss
  • Prevent neutral line from overheat
  • Prevent power equipments from noise, overheat and vibration like motor, transformer etc.
  • Prevent signal transmission equipments from data loss and interference
  • Prevent measurement error caused by non-sinusoidal current and voltage.
  • Prevent sensitive semi-conductive device from damage
  • Prevent circuit breaker trip.
  • Prevent capacitors from burn due to harmonic resonance
  • Ensure safety of power system and reduce energy consumption
AHF Technical Features
  • Can filter all kinds of harmonic currents
  • Filtering capability >95% for aimed harmonic
  • Traction level IGBT module, 20KHz switching frequency    
  • Response time <10ms
  • Single capacity up to 400A
  • Suppress three-phase unbalance
  • Conform to IEEE Std. 519-1992, GB/T 14549
  • Can be used as harmonic source
  • Apply closed-loop control, and ensure filtering accuracy
  • Can set filtering mode and select harmonic filtering type
  • Adapt automatically to impedance change of power network
  • Can connect 690V system(CE/C-tick) and 600V system(cUL) directly
  • Parallel connection, easy for filtering capacity expansion
  • Modularized design, easy for maintenance
  • Perfect protection functions
  • Faults record and history inquire
  • Support multiple communication protocols
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 harmonic filter test platform to realize Factory Acceptance Testing for whole machine before delivery.   

Model and Dimension specification
 
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 AHF can be designed according to requirements of users.

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