How To Configure Surge Protectors To Ensure Stable Data Transmission At Charging Stations?

When charging piles operate outdoors, they must not only meet power transmission standards but also match the surge protection capabilities of the communication modules. Transient overvoltages such as lightning strikes can inject into the equipment along power and signal paths, causing sudden voltage changes at interfaces and affecting the data transmission link performance between the charging control unit and the backend platform. The 132 kv lightning arrester provides a built-in discharge path for the system before a high-voltage pulse arrives, keeping the voltage amplitude of field devices within the design range.

When deploying 132kv lightning arrester, the selection and configuration should be based on the power supply and communication topology of the charging pile. For the DC/AC power supply interface, a metal oxide 132kv surge arrester that matches the system operating voltage can be used, and a good grounding connection should be established between the power supply and ground to provide a bypass path for transient voltages. The selection of protection devices at the signal link needs to consider data transmission characteristics to avoid introducing significant impedance changes or delays.

The 15 kv surge arrester is installed near entry points that may be affected by lightning strikes, such as near the main power input terminal of the charging pile and the external communication interface, which can shorten the path for high voltage pulses to reach the internal circuit. For grounding, a low-resistance grounding system should be used to reduce loop resistance and improve energy release capability. This allows 22 kv lightning arrester to quickly return to a static state after the impact event.