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

GDIS is an advanced solution tailored for critical sensitive control equipment, including DCS and PLC systems, in continuous production environments. This innovative device effectively combats high-frequency interference originating from the grounding grid, while also suppressing secondary equipment disturbances caused by ground potential surges and overvoltages. By doing so, it significantly minimizes operational errors and measurement inaccuracies in comprehensive automation control systems and precision instruments. As one of the leading suppliers based in China, we ensure that our GDIS units deliver exceptional performance and reliability.

The efficacy of GDIS is largely independent of the grounding grid's impedance and has minimal correlation with grounding connection resistance. The primary mechanism of interference suppression is accomplished through the robust defense and energy absorption capabilities inherent in the GDIS itself, making it a reliable choice for customers requiring high-quality products from a trusted factory.

Featuring superior reliability and rapid response times, GDIS effectively isolates high-frequency lightning currents, thus significantly reducing the risk of interference in control systems. It helps to prevent unplanned operational shutdowns resulting from local power outages, and plays a crucial role in averting serious incidents such as fires and explosions triggered by secondary accidents. Choose GDIS for unparalleled protection and peace of mind in your production processes.

    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

    QHow does GDIS protect control systems from interference?

    The GDIS device effectively isolates high-frequency interference originating from the ground grid, reducing control system interference risks and preventing unplanned shutdowns.

    QWhat is the interference suppression range of the GDIS device?

    The device features an interference suppression frequency range of 75Hz to 100MHz, with a depression ratio ranging from 50% to 96% (higher than 80% on average).

    QDoes GDIS remain operational if one module fails?

    Yes, GDIS uses a dual parallel functional module design for redundancy. Damage to a single module does not disrupt the normal operation of the equipment or system grounding reliability.

    QWhat are the transient limits for voltage and current suppression?

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

    QWhat is the protection level and efficiency of this device?

    It features an IP30 protection level, operates with an overall efficiency of over 98%, and maintains a low normal loss of 60W or less.

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