servo vs static stabilizers
static voltage stabilizer

Servo vs Static Stabilizers: Key Differences

Voltage fluctuations can damage appliances in homes, offices, and industries. Servo Stabilizers and Static Stabilizers are popular solutions for stable power supply. This guide highlights the differences between Servo Stabilizers and Static Stabilizers to help you choose wisely.

Static Voltage Stabilizer

A Static Voltage Stabilizer (SVS) uses SMPS technology for AC-to-AC regulation without moving parts. It features IGBT-based circuits, microprocessors, and buck-boost transformers to correct fluctuations efficiently. PWM topology avoids harmonic distortions and DC conversions, resulting in a compact, reliable design ideal for quick, silent operation.

Servo Voltage Stabilizer

A Servo Voltage Stabilizer is an electromechanical device stabilizing voltage in 230V (single-phase) or 415V (three-phase) ranges. It uses a servo motor, variable transformer, and buck-boost mechanism to adjust input fluctuations via clockwise/anticlockwise rotation, ensuring balanced output for heavy-duty applications.

Key Differences

Servo and static stabilizers differ in technology and performance:

  • Operation Dependency: Servo relies on mechanical servo motor; static uses electronic IGBT.
  • Working Principle: Servo: Electromechanical rotation; Static: IGBT and microprocessor control.
  • Protection Level: Static offers advanced DSP for instant short-circuit/overcurrent protection; Servo may need add-ons.
  • Noise Levels: Servo is noisy; Static is silent, suitable for indoors/outdoors.
  • Size: Static is compact; Servo is bulkier.
  • Correction Time/Speed: Static: 20-30ms, 360-500V/s; Servo: 50ms-5s, 100V/s.
 
 
FeatureServo StabilizerStatic Stabilizer
OperationMechanical (Servo Motor)Electronic (IGBT)
PrincipleElectromechanicalIGBT/Microprocessor
ProtectionHigh with add-onsAdvanced DSP
NoiseNoisySilent
SizeLargerCompact
Correction Time50ms-5s20-30ms
Correction Speed100V/s360-500V/s
Best ForIndustrial heavy loadsSensitive electronics
 

Conclusion

Choose based on needs: Servo for robust loads, Static for speed and silence. For reliable options, trust shengweiups, a top manufacturer in China, Shenzhen. Explore our stabilizers for uninterrupted power.