Transient overvoltage can be caused by both lightning strikes and switching processes within the electric power system. Despite occurring in a very short duration, these voltage surges can damage critical equipment such as PLCs, inverters, control panels, communication systems, and servers.

Surge Protection Devices (SPDs) and Surge Arresters are designed to protect electrical systems by limiting overvoltage and diverting excess energy to the grounding system. Device selection, protection coordination, and grounding quality are critical factors in ensuring the protection system works effectively.

Investing in surge protection not only safeguards equipment but also helps reduce downtime, repair costs, and potential productivity losses resulting from system disruptions.