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MCGD Compensation Controller

The MCGD reactive power compensation controller is suitable for both high- and low-voltage distribution systems and operates based on reactive power. It employs a high-performance microcontroller, features a digital design, and includes an RS485 communication interface; the power quality data it acquires can be transmitted to external devices via this interface. The product offers protection functions for common‑phase compensation, overvoltage, undervoltage, harmonics, and overheating. With switching strategies that include cyclic, linear, and fast modes, it provides automatic, precise compensation control, thereby improving the system’s power factor and enhancing power quality.

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    • Commodity name: MCGD Compensation Controller

    The MCGD reactive power compensation controller is suitable for both high- and low-voltage distribution systems and operates based on reactive power. It employs a high-performance microcontroller, features a digital design, and includes an RS485 communication interface; the power quality data it acquires can be transmitted to external devices via this interface. The product offers protection functions for common‑phase compensation, overvoltage, undervoltage, harmonics, and overheating. With switching strategies that include cyclic, linear, and fast modes, it provides automatic, precise compensation control, thereby improving the system’s power factor and enhancing power quality.

    MCGD The reactive power compensation controller is suitable for both high- and low-voltage distribution systems and operates based on reactive power. It employs a high-performance microcontroller, features a digital design, and includes an RS‑485 communication interface, enabling the transmission of measured power quality data to external devices. The product offers protection functions for common‑mode compensation, overvoltage, undervoltage, harmonics, and overheating. With switching strategies that support cyclic, linear, and fast modes, it provides automatic, precise compensation control, thereby improving the system’s power factor and enhancing power quality.

     

    Product Features:

    Applicable to reactive power compensation control in both high-voltage and low-voltage distribution systems.

    Supports independent AC and DC power supply, ensuring high reliability.

    Type D with thyristors and a composite switch; Type J with a contactor.

    RS485 communication, master–slave automatic identification control mode, precise compensation, and support for parallel operation of up to five controllers.

    Switching strategies for cyclic mode (first‑in‑first‑out), linear mode (first‑in‑first‑out with subsequent switching), and fast mode (20 ms) 。  

    It features a four-quadrant reactive power algorithm and is suitable for photovoltaic system compensation.

    Supports the fixed compensation mode for branch circuits, suitable for transformer no-load conditions.

    Adjustable from 0.5 inductive to 0.5 capacitive, allowing for overcompensation.

    Supports compensation branch capacity degradation detection and alarm, over-temperature alarm, and fault alarm.

     

    Technical Specifications:

    Operating voltage

    AC 85V~265V

    DC 120V~370V

    Sampled voltage

    AC100V-750V

    Sensitivity

    ≥20mA

    Sampling current

    0~5A

    Frequency

    45Hz~60Hz

    Output point rated value

    AC 250V: 2A

    DC 12V: 50 mA

    Operating temperature

    -20℃ to 50℃

    Altitude

    ≤2000m

    Digital signal

    Route 12/14/16 (optional)

    Communication

    RS485 (optional)

    External dimensions

    148x148x76 (W*D*H, mm)

    Installation hole dimensions

    138*138

     

    Specification and Model Description:

    Relay Output Type J

    DC Level Output Type D (Common Compensation)

    DC Level Output, Type D (Common Compensation)

    MCGD—12J

    MCGD—12D

    MCGD—12DF

    MCGD—16J

    MCGD—16D

    MCGD—16DF

     

    Product Selection:

     

    Product Dimensions Diagram:

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    Key words:
    • Four‑phase reactive power compensation photovoltaic controller
    • reactive power compensation controller

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