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

GDIS is an advanced solution designed for key sensitive control equipment, such as DCS and PLC, utilized in continuous production processes. This device effectively mitigates high-frequency interference from grounding grids and reduces secondary equipment disturbances caused by ground potential surges and overvoltages. By minimizing misoperations and measurement errors in comprehensive automation control systems and precision instruments, GDIS is essential for maintaining operational integrity.

The suppression capabilities of GDIS remain largely unaffected by grounding grid impedance and resistances. It primarily achieves effective interference suppression through the inherent defense mechanisms and energy absorption designed into the GDIS unit. As a leading product among suppliers in China, GDIS exemplifies reliability and rapid response times in high-frequency lightning current isolation, significantly lowering the risks of control system interference.

Furthermore, GDIS contributes to the prevention of unplanned shutdowns due to localized power outages and mitigates the risk of serious accidents, including fires and explosions related to secondary incidents. Choose GDIS from our factory for unmatched performance and protection in your automation systems.

Product Detail

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

Parameter Item	Technical Specification
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

Q: How does the GDIS device isolate high-frequency interference?

The GDIS device effectively isolates high-frequency interference from the ground grid within a wide suppression frequency range of 75Hz to 100MHz, protecting control systems from electrical noise.

Q: What is the redundancy design of the GDIS device?

The device features a dual parallel functional module design. If a single module is damaged, the redundancy function ensures it does not affect the normal operation of the equipment or the overall system grounding reliability.

Q: What are the maximum transient voltage and current ratings?

The GDIS device is built to handle extreme transient surges, offering a maximum suppression voltage of up to 25kV and a maximum suppression current of up to 320kA.

Q: Under what temperature conditions can GDIS operate?

The GDIS device is designed for industrial environments, operating reliably in a wide temperature range from -40°C to +60°C.

Q: How does GDIS balance joint and independent grounding?

GDIS maintains the significant advantages of both joint grounding and independent grounding systems while effectively overcoming their respective technical shortcomings.