We Manage Voltage to Protect Your Business

Provides a continuously adjustable output voltage for inputs from 220 to 660V

1500 kVA 3 Phase Automatic Voltage Regulator

Single/Three phase
Input voltage:
220/380V, 230/400V ±20% or customized
Output voltage:
220/380V, 230/400V ±1-5%
Power factor:
Type of technology:
Servo type with roller carbon brush
Type of regulation:
Independent voltage control
LED/Touch Screen HMI

Three Phase Automatic Voltage Regulator AVR SBW With CE ISO Certificate​

DBW SBW compensated voltage stablilizer is a contact adjustable automatic voltage compen-sation high-power regulating power device. When voltage from supply network is varied or dueto loading current effect, it automatically regulates the output voltage to ensure the normal func-tion of the varied of electric equipments.

Voltage Regulator Feature:

Extremely wide voltage regulation range

Maintenance free roller type carbon brush

Individual regulation with unique small dimension 

Maximum capacity up to 5000KVA

High Mean time Between Failure(MTBF) 

Reliable and quiet servo motors

Wheels mounted for easy installation

Start up delay to prevent over current inrush

Isolation transformer on request

Indoor or outdoor version on request

BROADCAST: Regulation for broadcast transmitter sites and studios.
COMMERCIAL: High- rise building, elevator control, large A/C chillers, lighting, and 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 equipments.
TELECOM: Mobile base stations, exchanges stations, control centers and transmission relay stations, .
Technical parameter

Input Voltage Single phase 220V±20%, three phase: 380V±20%
The other input voltage range and rated voltage can be custom designed.
Output Voltage Single phase 220V±1-5%, three phase: 380V±1-5%
Supply Frequency 50/60Hz 
Insulation Resistance ≥2MΩ
Voltage Regulation Mode Independent phase regulation for three phase
Waveform Distortion nil
Insulation Class H class
Method of Voltage Regulation Regulation transformer with servomotor
Insulated Strength Single phase: 2000V/1min without puncture
Three phase: 2500V/1 min without puncture
Efficiency >97% on full load
Overload Rating Withstand 200% overload in short time
Protection class IP20(indoor), outdoor type on request
Electrical safety CE equivalent
Operational Temperature -20 °C to +45 °C
Functions Power-on style, Malfunction protection, Short- circuit protection, 
Lack of phase protection, Over voltage shutdown, Under voltage 
shutdown, Safe start


Model Dimension(W×D×H)mm Model Dimension(W×D×H)mm
DBW-10KVA 300×720×1270 DBW-50KVA 300×800×1370
DBW-20KVA 300×720×1270 DBW-80KVA 300×800×1370
DBW-30KVA 300×720×1270 DBW-100KVA 300×800×1370
SBW-15KVA 300×720×1270 SBW-350KVA 500×1050×1800
SBW-20KVA 300×720×1270 SBW-400KVA 500×1050×1800
SBW-30KVA 300×720×1270 SBW-500KVA 600×1250×2000
SBW-50KVA 300×800×1370 SBW-600KVA 600×1250×2000
SBW-80KVA 300×800×1370 SBW-800KVA 600×1250×2000
SBW-100KVA 300×800×1370 SBW-1000KVA 800×1800×1900
SBW-120KVA 300×800×1370 SBW-1200KVA 1000×1800×1900
SBW-150KVA 400×900×1600 SBW-1500KVA 1000×1800×1900
SBW-180KVA 400×900×1600 SBW-2000KVA 1000×1800×1900  two cabinets
SBW-200KVA 400×900×1600 SBW-3000KVA 1000×1800×1900  two cabinets
SBW-250KVA 500×1050×1800 SBW-4000KVA 1000×1800×1900  three cabinets
SBW-300KVA 500×1050×1800 SBW-5000KVA 1000×1800×1900  four cabinets