Estratégias de proteção contra tensão transitória para data centers e racks de TI

07 de julho de 2025

Alt-text: Server racks in a modern data center with controlled lighting and secure enclosures

In modern data centers, transient voltage surge protector (TVSS) devices are vital for safeguarding sensitive equipment. These short, unexpected voltage spikes—often caused by lightning, switching events, or generator transfers—can corrupt data or damage servers in microseconds.

TOSUNlux provides high-performance Surge Protective Devices (SPDs) that enable a full, end-to-end power protection strategy from a single trusted manufacturer—ideal for IT racks, server rooms, and overall data center environments.

Protetor de sobretensão e subtensão digital modular TDP-3

Understanding Transient Voltage Protection

Transient voltage surge protectors detect voltage spikes and instantly shunt them away via MOVs, TVS diodes, or gas discharge tubes, clamping energy before it reaches your equipment . They typically react in nanoseconds—fast enough to shield high-speed data electronics.

Key protection points include:

  • Point-of-entry SPDs: Installed at utility feed or automatic transfer switch.
  • Panel-level SPDs: Protects distribution board from internal surges.
  • Rack-mounted SPDs: Placed close to critical servers and switches.

Layered SPD placement ensures every potential entry point for transient surges is covered.

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Power Conditioner Surge Protector and Voltage Regulator

A power conditioner combines surge protection with voltage regulation and line noise filtering. It smooths out brownouts, spikes, and electrical interference while delivering clean, stable power.

A well-designed power conditioner surge protector and voltage regulator keeps output voltage within safe ranges, suppresses surges, and filters out electrical noise. This is especially useful in racks running sensitive servers or switching hardware where both voltage consistency and surge protection matter. 

DC Voltage Surge Protector

Many IT systems use DC power—especially telecom racks and PoE networks. A DC voltage surge protector safeguards these circuits from transient spikes.

Components like TVS diodes, rated to clamp in under 1 ps, guard against fast spikes caused by switching or inductive discharges. Properly rated DC SPDs in telecom/PoE panels protect blade servers and networking hardware.

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High Voltage Surge Protector

In data centers, switching between utility and generator power can send high voltage transients through the system. These surges can exceed home-level spikes (thousands of volts).

Heavy-duty SPDs (Type 1 or 2) that handle higher voltages and currents are essential at:

  • Service entrance panels
  • Generator and ATS inputs:  This prevents damage during power transfers

Best Practices for Data Center Protection

Implementing transient voltage protection effectively means combining strategies:

  • Multi-level SPD deployment
    Entry-point SPDs at service meter
  • PDU or panel SPDs
  • Rack-mounted SPDs near critical equipment: This layered structure reduces residual transient energy as it travels through the power system
  • Add power conditioning as needed
    Use power conditioner surge protector and voltage regulator combos for sensitive hardware that needs steady voltage plus surge defense.
  • Include DC protection
    Add dc voltage surge protector in PoE or telecom racks to protect DC-bus circuits.
  • Install high voltage devices
    Use HV surge protectors at generator-ATS interfaces to catch larger transients from switching operations.
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TOSUNlux offers a full portfolio of SPDs designed for data center environments:

  • Type 1 entry SPDs for service entrance and ATS protection
  • Panel- and rack-mount surge protectors rated for sensitive IT equipment
  • Combined power conditioner surge protector and voltage regulator units
  • DC SPDs tailored to PoE and telecom applications

This comprehensive selection means you can design a layered protection strategy using devices from a single, trusted manufacturer—simplifying installation, support, and lifecycle maintenance.

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Transient Voltage Surge Protector: Conclusion

Data centers face complex power threats—from high-energy generator swells to rapid transient spikes. A transient voltage surge protector, when used alongside power conditioning, DC surge protection, and high-voltage SPDs, forms a comprehensive shield against these problems.

TOSUNlux full suite of high-performance SPDs lets you build robust, end-to-end protection for server rooms and IT racks. Your data remains intact, uptime is maximized, and equipment life is safeguarded with clean, stable power at every level.

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