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Lightning rod 110 kV
Type classification:
Power station type: suitable for incoming line end substation and high voltage protection transformer side;
Line type: hanging or pedestal design, partially integrated with the disconnector function, can quickly cut off the power frequency continuous current and reduce the lightning frequency.
Description
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Product Details
Surge limiter 110kV Surge limiter
Type classification:
Power station type: suitable for incoming line end substation and high voltage protection transformer side;
Line type: hanging or pedestal design, partially integrated with the disconnector function, can quickly cut off the power frequency continuous current and reduce the lightning frequency.
Performance Standard: It must meet national standards such as GB/T 18802.1, IEC60099-4 and some models are suitable for high altitude (≤ 2000 meters) and anti-flash pollution requirements
Main components: Zinc oxide valve plate as the main body, significant non-linear current-voltage characteristics, current power adapted to the system short-circuit current (≥ 40kA), response time ≤ 25ns;
jaw material:
Silicone rubber composite material, weatherproof -40℃~+85℃, IP65 protection grade, weight reduced by 30% compared with traditional ceramic type;
Some models integrate voltage equalization rings to balance parasitic ground capacitance and prevent partial discharge flashover (particularly suitable for extended designs at high voltage levels of 500 kV and above);
Auxiliary structure: Setting the disconnector to quickly cut off the continuous power frequency current in the event of a fault, avoiding equipment damage and expansion
Main functions:
110kV substation, incoming end of the line, high and low voltage side of the transformer and lightning protection of the transmission line, limiting the amplitude of the overvoltage below the equipment insulation level;
Power frequency continuous current interruption in combination with a disconnector to reduce lightning frequency and equipment maintenance costs
Adaptation to the environment:
Coastal areas of salt spray and industrial pollution require the use of composite casings, combined with pressure equalization rings or anti-fouling coatings to improve stability;
Priority should be given to fully sealed zinc oxide lightning rods in high altitude areas (≤ 2000 meters) to avoid seal failure due to pressure changes.
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