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GDIS for Control Power: China Suppliers & Factory Solutions for Lightning and Interference Protection

The GDIS (Ground Interference Defense System) is an essential solution for key sensitive control equipment, such as DCS and PLC, in continuous production processes. Designed by leading manufacturers in China, this product effectively protects against high-frequency interference from ground grids, mitigating issues like ground potential counterattacks and ground overvoltage. By employing the GDIS, users can significantly reduce the risk of misoperation and measurement errors in comprehensive automation control systems and precision instruments.

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One of the standout features of GDIS is its suppression effect, which remains largely unaffected by the impedance of grounding grids or the resistance of grounding connections. The GDIS principally achieves its aims through the inherent energy absorption and defense capabilities of the device itself, allowing for optimal performance in various environments.

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Offering enhanced reliability and a quicker response time, the GDIS effectively isolates high-frequency lightning currents. This crucial feature minimizes the risk of control system interference, prevents unplanned shutdowns stemming from local power outages, and safeguards against serious incidents such as fires and explosions that can arise from secondary accidents. Choose GDIS from trusted suppliers and factories in China for superior protection in your industrial applications.

    Functional Features

    Effectively isolate high-frequency interference from the ground grid;

    Reduce the risk of control system interference;

    Prevent unplanned shutdown accidents caused by control system failures;

    GDIS has fault alarm function;

    The GDIS device has redundancy function and adopts a dual parallel functional module design. Single module damage does not affect the normal operation of the equipment and the reliability of system grounding;

    Depression ratio higher than 80%;

    To ensure the safety of electrical equipment, the GDIS device has redundant functions and adopts a dual parallel functional module design. Single module damage does not affect the normal operation of the equipment and the reliability of system grounding

    Not only maintains the significant advantages of joint grounding and independent grounding, but also overcomes their respective shortcomings.

    Technical Indicators

    Interference suppression frequency range 75Hz~100MHz
    Depression ratio 50%~96%
    Maximum suppression voltage 25kV (Transient)
    Maximum suppression current 320kA (Transient)
    Normal loss ≤ 60W
    Working temperature -40~+60℃
    Temperature rise < 20K
    Noise < 60dB
    Protection level IP30
    Overall efficiency >98%

    Detail Pictures

    Frequently Asked Questions

    What is the primary function of the GDIS device?

    The GDIS device is designed to effectively isolate high-frequency interference from the ground grid, reduce the risk of control system interference, and prevent unplanned shutdown accidents caused by control system failures.

    How does the redundancy design improve GDIS reliability?

    The GDIS device adopts a dual parallel functional module design. In the event of a single module damage, the normal operation of the equipment and the reliability of system grounding remain unaffected.

    What range of interference frequencies can the GDIS suppress?

    GDIS features a broad interference suppression frequency range, operating effectively from 75Hz up to 100MHz.

    What are the maximum transient suppression capabilities of this device?

    The GDIS device can handle a maximum transient suppression voltage of 25kV and a maximum transient suppression current of 320kA.

    What are the operating temperature limits and environmental ratings?

    The GDIS is built to operate under harsh conditions with a working temperature range of -40 to +60℃, a temperature rise of less than 20K, and an IP30 protection level rating.

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