With the continuous improvement of power system capacity and automation level, a large number of microelectronic devices such as computers and RTUs are used in substations, high and low voltage distribution rooms, measurement and control terminals, and other links. This type of equipment has low operating voltage and is extremely sensitive to interference, posing strict requirements for lightning overvoltage protection. Especially in high soil resistivity or mountainous areas, grounding conditions are limited, and lightning strikes and line surges can easily cause equipment damage and system paralysis, directly affecting power dispatching, industrial and agricultural production, and household electricity consumption. Lightning protection work in the power system is crucial.

In response to the protection requirements of the power system, Haipeng Xin has built a hierarchical collaborative and full chain coverage protection system: referring to the lightning protection topology of the secondary system power supply in substations, different levels of SPD products are configured for key nodes such as AC incoming lines, DC power supplies, automation systems, remote communication, and industrial electricity, to gradually discharge lightning current and suppress overvoltage from the main distribution to the terminal equipment; At the same time, it provides dedicated protection for signal ports such as timing antennas and feeders, achieving comprehensive protection for power, signal, and communication links. The product model of the solution is complete, covering AC, DC, and signal lightning protection devices, with the characteristics of high current capacity, low residual voltage, and fast response. It can be adapted to scenarios such as substations, distribution rooms, and transmission towers, effectively reducing the risk of lightning damage and ensuring the safe and stable operation of the power system.

Product Features:

Full link protection: covering key nodes of substation power, signal, and communication.

Hierarchical collaborative architecture: Multi level SPDs discharge lightning currents step by step to suppress overvoltage.

Full coverage of AC and DC: providing a full range of lightning protection devices for AC, DC, and signal types.

Adapt to complex environments: capable of handling harsh scenarios such as high soil resistivity and mountainous areas.

High reliability performance: large throughput, low residual voltage, fast response, and stable operation.

Topology diagram of lightning protection for secondary system power supply in substation