**Surges** from inverters, PCS, and UPS can have a fatal impact on digital systems.

 

The main influence of the surge

• Damage to electronic circuits : Surges are momentary surges of high voltage or current that can cause microelectronics such as digital circuits, microprocessors, and ICs to deteriorate or permanently damage the components.

• Data Loss and System Malfunctions : Transient surges can cause data corruption, recording errors, communication failures, unexpected system restarts or downtime, resulting in loss of critical information, and malfunctions in process controllers such as PLCs, DCSs, and SCADAs.

• Shortened life of internal circuits : Repetitive or small surges (cumulative surges) can shorten the life of circuits in the long term, including insulation breakdown of electronic components, aging of components, damage to SMD or BGA packages, and failure of transistors and control ICs.

• Fire Risk and Additional Costs : Severe surges can cause insulation breakdown and overheating in circuits, increasing the risk of fire and causing substantial business losses due to equipment downtime, repair work, and data recovery.

Causes and routes of surge occurrence

• Surges can be caused by a variety of factors, including switching surges occurring within inverters, PCS, and UPS, load switching, short circuits, repeated power on/off cycles, and external lightning strikes.

• Internally generated surges account for 60-80% of the total, and can also be introduced periodically through the operation of equipment within the facility.

conclusion

Surges from inverters, PCS, and UPS can cause serious problems, including digital system malfunctions, data loss, circuit damage, or system shutdowns . Therefore, installing appropriate surge protection devices (SPDs) is essential.