The WBAPF three-level series active filter can directly or indirectly measure the current injected into the grid by a non­linear load through a connected external current transformer. The detection and operation of harmonic and reactive compensation are performed in the digital control unit. The active filter generates a compensation current that cancels the harmonic components and the load reactive current, so that there is only a fundamental current in the grid. The active filter is able to adapt the changes in the magnitude of the load and system harmonic content in real time so that it can be treated at any time

• Harmonic filtering function

• Up to 51 harmonics can be filtered out;
• Within the capacity range, the effective filtering ability of the target harmonics reaches 97%;
• Select and filter all the harmonics within 51 times at the same time, and set the filtering ratio of each harmonic;;
• With fast harmonic compensation, response time ≤5ms;

• Reactive compensation function

• With reactive power compensation capability, that is power factor adjustment capability;

• Provide two reactive power compensation modes : 1)  constant reactive power mode; 2)constant power factor mode;
• Unbalance compensation
• Balance the three-phase current of the system to avoid single-phase overload of the transformer and improve the effective use capacity;
• Other basic functions
• The CT can be installed on the load side or the grid side according to the user's choice. The device can be automatically compatible with the CT phase sequence.
• By setting, you can choose whether to compensate
• for harmonics or reactive power first;
• The protection level of the system reaches IP20;
• Can withstand 2.5 times overload of 10ms.
  Product Model

  
  
  

  Product Parameters

  Rated compensation conventional capacity	50A	80A	100A	120A	150A	200A
  Rated overload capacity	1.2 times rated current /1 min, 2.5 times rated current /10ms
  Wiring mode	Three-phase four-wire system (three-phase three-wire system can be customized) under AC380V Voltage class Three-phase three-wire system under AC690V Voltage class
  Cooling method	Air cooling
  Ambient temperature	40°C , up to 55°C , 2%/K over-temperature automatic derating
  Parallel operation	Support multi-machine parallel connection, can not equal capacity parallel
  Communications protocol	RS-485, Modbus-RTU communication protocol
  Rated operating voltage	AC380V±20%					AC690V±15%
  Air cooling requirements (full load)	≥330m3/h	≥600m3/h	≥1000m3/h	≥1200m3/h	≥1200m3/h	≥1000m3/h
  Noise level	≤  60dB					≤ 65dB
  Harmonic filtering range	2-51 times
  Function set	Combination of harmonic compensation, reactive compensation, unbalance compensation and free compensation with priority
  Dry contact	One ut contact: control switch machine; three output contacts: running power failure
  Altitude	≤ 3000 m
  Voltage class	AC380V±20%,AC690V±20%
  Rated operating frequency	50Hz±5%
  Response time	< 5ms
  Transformer installation location	Power side / load side
  Dimension(mm) Wallmount	400x190x570	450 x 200 x 620	480 x 270 x 707
  (width x depth x height) Drawer	530x550x190	530 x 550x190	475 x 600 x 270			550x600x270
  Weight (kg)	25 kg	35 kg        70 kg	70 kg			62 kg
  Protection class	Standard IP20
  Certification	Type test report of National Electronic Control and Distribution Equipment Quality Supervision Center, China Taier  Laboratory Inspection Report

  An Actual Case of the AHF/APF:    

  Before the APF/AHF switch on: There are harmonic and reactive losses in the grid, resulting in power quality problems

  After the APF/AHF switch on: generating reverse harmonic current and reactive current, dynamically compensating for harmonics and reactive power, guaranteed power quality

  
  
  

  
  
  
  Packaging & Shipping
  
  
  

  
  
  

  
  
  

   

  After Sales Service

  1) Debugging and Commissioning on Customer's site;
  2) Online Romote Commissioning and Debugging;
  3) Spare parts and CT available;