100KVA Three Phase Servo Voltage Stabilizer 380V (±30%) input


Model SBW 3-Phase 100KVA AVR
Input voltage 220/380V system, other volotage system can be customized
Input Range/Frequency ±20%, (±15% ~ ±50 can be customized) /  50/60Hz
Output voltage  220/380V system, other volotage system can be customized
Output Accuracy  Selectable: ±1% to ±15%, Factory present: ±12%
Power Factor 0.8 ~ 1
Efficiency >98% on full load
Working Principle  Servo Motor, microprocessor controlled, full automatic
Insulation Class of Transformer H Class
Method of Voltage Regulation Three phase independent regulation
Indicators Voltage, Current, Power, Parameters Setting, Failure Information
Cooling Natural/Forced air
Protection Level IP21 (Indoor), IP54 (Outdoor)
Electrical Safety CE Equivalent
Working Temperature -20 C to +50 C
Altitude <1000m
Relative Humidity <90%
Noise <55dB
Normal Function Malfunction protection, Short-circuit protection, Lack of phase protection, Wrong sequence protection, Over Voltage / Under Voltage protection, Overload Protection, Safe Start, Manual bypass, Indicating alarms, Security password, RS232/485 interface
DIMENSIONS  320 x 850 x 1470

311,200.00 3,320,850.00


100KVA Three Phase Servo Voltage Stabilizer 380V (±30%) input model is a three-phase compensation with the high-precision regulator, cabinet type. Furthermore, It comes with an LED digital display design and also compensated structure voltage regulation. In addition to this, It is mainly composed of a voltage regulation transformer and compensation transformer. Besides, it is also characterized by enough power that can achieve relatively large power and maintain high precision output.

In addition to what has been mentioned above, the input voltage range (especially the minimum voltage) is very wide. The regular voltage stabilizer cannot handle extreme low and unbalance voltage but this model can handle them conveniently. Furthermore, even if those can reluctantly work, the output is de-rated a lot due to low voltage and high current situation. A special voltage stabilizer with a step-up transformer can somehow solve the problem, but it has the disadvantages of high cost, low efficiency, and more space occupation.
In addition, our specially designed PRAG series of 100KVA Three Phase Servo Voltage Stabilizer 380V (±30%) input, adopts a patent regulator that copes with the low input voltage, and output voltage regulated to-rated 220V without de-rated input power. Similarly, its high cost-effectiveness, reliability, high performance, and long lifetime are all backed by a world-class manufacturer with decades of mains power experience. Subsequently, It is applied for any load like telecom, medical, industrial, and household applications.

100KVA Three Phase Servo Voltage Stabilizer Applications

Above all, the Prag 100KVA Three Phase Servo Voltage Stabilizer 380V (±30%) input, is widely used in lots of places and not limited to industries and mining enterprises, printing companies, machine tools, post and telecommunications business, railways, construction sites, schools, hospitals, hotels, defense ministries, scientific research centers and other departments of electronic computers, precision machine tools, precision instruments, experimental devices, elevators, and production lines.

Features of the 100KVA Three Phase Servo Voltage Stabilizer 380V (±30%) input 
  • Extremely wide voltage regulation range
  • Maintenance-free roller type carbon brush
  • Individual regulation with unique small dimension
  • High Meantime Between Failure (MTBF)
  • Reliable and quiet servo motors
  • Wheels mounted for easy installation
  • Start-up delay to prevent overcurrent in rush
  • Isolation transformer on request
  • Indoor or outdoor version on request
Applications of the 100KVA 3 Phase Stabilizer 
BROADCAST: Regulation for broadcast transmitter sites and studios
COMMERCIAL: High-rise building, elevator control, large A/C chillers, lighting, other sensitive critical systems.
INDUSTRIAL: Industrial automation, process control, CNC, factory robotics, heavy load machinery.
MEDICAL: X-ray, CT scanner, MRI system, Radiation therapy, machine, other medical imaging equipment.
TELECOM: Mobile base stations, exchange stations, control centers, and transmission relay stations.
HOUSEHOLD: Flats, Houses, etc
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