Due to switching, electronic devices, and any sudden change in the electric grid, these lead to transient over-voltage and then affect insulation, cables, etc. And in some cases, this leads to faulty cables.
Abdullah Khan
Surge Arresters: These are devices that divert the surge to the earth instead of allowing it to flow through the cables. Surge arresters can be installed at the substation or along the transmission line to protect the cables. Cable Insulation: Proper insulation of the cables can also help protect them from overvoltage. High-quality insulation can withstand a higher voltage level without breaking down. Grounding: Proper grounding of the system can help reduce the impact of transient overvoltage. Grounding provides a path for the surge to flow into the earth, reducing its impact on the cables. Circuit Breakers: Circuit breakers can be used to isolate faulty cables and prevent further damage to the system. Maintenance: Regular maintenance of the system can help identify any potential issues and prevent cable faults from occurring.
There are several ways to protect medium-voltage cables from transient overvoltage:
Overall, a combination of these methods can be used to protect medium-voltage cables from transient overvoltage and prevent cable faults.
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