GDIS for Control Power Lightning&Interference

GDIS is suitable for key sensitive control equipment (such as DCS and PLC) in continuous production processes, effectively defending against high-frequency interference from the ground grid, suppressing secondary equipment interference caused by ground potential counterattacks, ground overvoltage, etc., and reducing misoperation and measurement errors of comprehensive automation control systems and precision instruments.

The suppression effect of GDIS is minimally affected by the impedance of the grounding grid and has little relationship with the grounding connection resistance. It mainly achieves the ultimate goal of suppressing interference through the defense and energy absorption of the ground grid interference suppressor GDIS itself.

GDIS has higher reliability and shorter action time, which can effectively isolate high-frequency lightning currents, reduce the risk of control system interference, prevent unplanned shutdowns caused by local power outages, and prevent serious disasters such as fires and explosions caused by secondary accidents.

product details

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%