There are significant differences in the applications of Lightning Arrester at different voltage levels.
At low voltage levels, such as civil and small industrial power systems, the main function of Lightning Arrester is to protect electrical equipment from damage caused by lightning-induced overvoltage and operating overvoltage. Due to the low voltage, the Lightning Arrester has a relatively simple structure and small size. Zinc oxide Lightning Arrester is usually used, and its current capacity is relatively small, which can meet the general overvoltage protection requirements in low-voltage systems. In terms of installation, the low-voltage Lightning Arrester is relatively easy to install and can be installed directly near the distribution box or equipment. Moreover, Lightning Arrester maintenance and inspection in low-voltage systems are relatively easy and cost-effective.
As the voltage level increases to medium voltage level, the performance requirements of Lightning Arrester also increase accordingly. Medium voltage systems usually face more frequent operating overvoltages and stronger lightning overvoltage impacts. At this time, Lightning Arrester needs to have higher flow capacity and better protection characteristics. In terms of structural design, the medium-voltage Lightning Arrester may adopt a more complex internal structure and heat dissipation design to ensure stable operation under large current surges. When installing, you need to consider coordination with other electrical equipment and the reliability of grounding. At the same time, the maintenance and inspection of medium-voltage Lightning Arrester also require more professional equipment and technicians to ensure its normal operation.
In high voltage levels, such as high voltage and ultra-high voltage transmission systems, the role of Lightning Arrester is crucial. The overvoltage energy in high-voltage systems is huge and poses a great threat to electrical equipment. Therefore, high voltage Lightning Arrester usually has very high current capacity and excellent protection performance. These Lightning Arrester often use advanced materials and manufacturing processes to withstand high-intensity lightning strikes and operating overvoltages. In terms of installation, the high-voltage Lightning Arrester needs to be installed in a specific location and coordinate precisely with other equipment on the transmission lines and substations. Its grounding system also needs to undergo strict design and construction to ensure good grounding effect. The maintenance and testing of high-voltage Lightning Arrester is a complex and arduous task. Professional testing equipment and technical means are required to regularly monitor the condition and perform performance evaluation of Lightning Arrester.
In short, there are obvious differences in the application of Lightning Arrester at different voltage levels. From structural design, performance requirements to installation, maintenance and testing, all aspects need to be selected and implemented according to the specific voltage level.
