What characteristics should the lightning arrester for charging station power supply have?
The increasingly serious environmental pollution has led to the rapid development of many new energy products, and new energy vehicles are one of them. However, in order to develop new energy vehicles, a large number of charging devices are needed. However, most charging stations are located outdoors and are susceptible to the impact of induced lightning waves. When struck by lightning, the electronic and communication systems of the charging station are extremely vulnerable to damage, which can result in the vehicle being unable to charge or the vehicle being charged, which may have even more serious consequences and significant maintenance costs in the later stages.
According to the provisions of GB50057 and GB50343, for equipment that requires special protection, the rated value of impulse voltage resistance (UW) should not exceed 1.5kV. The corresponding power lightning arrester belongs to Class C power protection, with a current level of 20kA -40kA and a maximum continuous operating voltage of AC385V. For the protection of charging stations, professional charging station power lightning arresters can be used, which generally have the following characteristics:
1, The key control point of this specification of lightning arrester is that the voltage protection level (Up) should be less than the design of UW;
2, Adopting high-performance MOVs with high reliability;
3, Equipped with work fault indication and optional remote signaling alarm function;
4, And it adopts temperature control protection circuit, built-in thermal protection, and automatic disconnection device for short circuit fault;
5, Adopting standard modular design, it is easy to install and maintain. It can effectively protect the charging station from lightning strikes.
Looking at the trend of automotive development, there will be more and more applications of electric vehicles in the future, and charging piles will also develop accordingly. As an essential part of electric vehicles, charging piles cannot be neglected in safety maintenance. At the beginning of construction, it is necessary to plan the installation of lightning protection facilities. In order to reduce the trouble of future maintenance, it is best to install a dedicated power lightning protection device for charging piles in lightning protection to avoid losses caused by lightning strikes.
