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APFGD Active Filter Cabinet

The APFGD/SVGGD device is a novel power electronic system designed to address power quality issues, employing an external current transformer to continuously monitor the load current in the grid.

Category:

Low-Voltage Automatic Filter Compensation Device

Product Manual

Hotline:

18028173868

Product Consultation
  • Summary
  • Product Selection
  • Distinction
  • Parameter
  • Explain
  • Size
    • Commodity name: APFGD Active Filter Cabinet

    The APFGD/SVGGD device is a novel power electronic system designed to address power quality issues, employing an external current transformer to continuously monitor the load current in the grid.

    The APFGD/SVGGD device is a novel power electronic system designed to address power quality issues. By connecting an external current transformer (CT) to continuously monitor the load current in the grid, and leveraging DSP, FPGA, and CPLD chips along with state-of-the-art fast harmonic and reactive‑power extraction techniques, it rapidly analyzes the harmonic and reactive components of the load current. Based on user‑defined setpoints, it then generates PWM pulses to drive a bidirectional converter composed of three‑level IGBT modules, producing compensation currents that meet grid requirements. This enables dynamic, high‑precision compensation of harmonic and reactive currents, thereby enhancing power supply quality.

     

    Product Features:

    ► Continuous adjustment of reactive power capacity enables stepless compensation.

    ► It can dynamically and bidirectionally regulate reactive power, compensating both inductive and capacitive loads.

    ► Each circuit employs modular products, an independent protection system, and a remote monitoring module within the energy management system to track operating parameters.

    ► Response time ≤ 10 ms; features rapid reactive power compensation and harmonic mitigation, suppressing voltage fluctuations and mitigating reactive power surges from the load.

    ► Equipped with a four-quadrant reactive power algorithm, suitable for photovoltaic system compensation.

    ► Specific CQC certification report for the device.

     

    Technical Specifications:

    Application Areas

    		Indoor, altitude ≤ 2000 mm

    Electrical wiring

    		Three-phase four-wire / Three-phase three-wire

    System voltage

    		0.4kV

    Voltage deviation

    		±15%

    Frequency

    		50Hz

    Relative humidity

    		≤90% (40℃)

    Ambient temperature

    		-20℃~+50℃

    Control voltage

    		12V DC

    Switching interval

    		≤10 ms (Thyristor)

    Communication method

    		RS485

    Number of parallel units

    		Parallel expansion: depending on the cabinet size, each cabinet can accommodate up to 8 units.

    Filtering range

    		Filter out characteristic harmonics from the 2nd to the 51st order.

     

    Specification and Model Description:

    Transformer Capacity (kVA)

    Installed capacity (kvar)

    Output capacity (kvar)

    Smart Filtering and Compensation Module Configuration

    Reactance ratio

    Inside the cabinet Circuit breaker

    Cabinet dimensions (width × depth × height)

    		 
     

    630

    267+100A

    200+100A

    2x33.3+3x66.7+100A

    7%

    630A

    800x800x2200

    		 

    800

    334+150

    250+150A

    2x33.3+4x66.7+150A

    7%

    800A

    1000x800x2200

    		 

    1000

    400+150A

    300+150A

    2x33.3+5x66.7+150A

    7%

    800A

    1000x800x2200

    		 

    1250

    440+200A

    330+200A

    1x40+5x80+2*100A

    7%

    1000A

    1000x800x2200

    		 

    1600

    634+250A

    475+250A

    1x33.3+9x66.7+150A+100A

    7%

    800A

    2x(1000x800x2200)

    		 

    2000

    800+300A

    600+300A

    2x33.3+11x66.7+2x150A

    7%

    1000A

    2x(1000x800x2200)

    		 

    2500

    1000+400A

    750+400A

    2x33.3+14x66.7+4x100A

    7%

    800A

    3x(1000x800x2200)

    		 

    3150

    1280+600A

    960+600A

    16x80+4x150A

    7%

    1000A

    3x(1000x800x2200)

    		 

     

    Product Selection:

    Product Dimensions Diagram:

    Design Requirements:

    1. 1. All filter‑compensation modules are equipped with ventilation systems; the front panel of the cabinet must feature a perforated, ventilated design, while the rear panel must be fitted with a fan.
    2. 2. For single cabinets with a capacity ≤ 400 kvar, the rear door must be equipped with four fans, each providing an exhaust airflow of no less than 40 m³/min.
    3. 3. For single cabinets with a capacity exceeding 400 kvar, six fans must be installed at the rear door, with an exhaust airflow rate of no less than 60 m³/min.
    4. 4. When natural air cooling at the installation location of the modular switchgear cabinet is insufficient, an air-conditioning system must be installed in the room.
    5. 5. The equipment should undergo a power-off maintenance every three months, during which the cabinet door is opened and dust is cleaned out.
    Key words:
    • Compensation
    • system
    • capacity
    • module
    • protection
    • voltage
    • device

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The APFGD/SVGGD device is a novel power electronic system designed to address power quality issues, employing an external current transformer to continuously monitor the load current in the grid.
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