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ZHENGXI

SBW 30kva-1000kva AC Auto Three Phase Voltage Regulator Input voltage 304V-456V

Phase:Three Phase
Current Type: AC
Place of Origin:Zhejiang, China
Model Number: SBW-N50KVA
Input Voltage: 304V-456V
Capacity: 30Kva-1000Kva
Output voltage:380V
Frequency:50Hz/60Hz
Capacity: 50KVA
Display: LCD
Certificate:CE / ISO9001
Color: Grey White
Efficiency: 0.98

The SBW high-power AC auto voltage regulator is designed and manufactured with international advanced compensation technology.
It automatically maintains the programmed voltage stability to ensure the normal operation of electrical equipment despite grid voltage fluctuations or load current changes.
Compared to other voltage stabilizers, it offers large capacity, high efficiency, no waveform distortion, ease of use and maintenance, reliable operation, and full capacity output even at low input voltage ranges. It includes protections against overvoltage, overcurrent, and startup phase sequence issues.

This AC auto voltage regulator is suitable for power supply in small-sized plants, workshops, and departments, as well as medium or large mining enterprises.It is widely used in precision machine tools, precision instruments, test devices, elevators, imported electromechanical devices, production lines in mining enterprises, oil fields, railways, construction sites, schools, hospitals, hotels, and scientific research departments. It is also ideal for users at the end of LV electric networks with low power voltage and wide voltage fluctuations.

ModelSBW-30KVA-1000KVA(Three phase)
Input voltage304V-456V
Output voltage380V±2.5%
Voltage regulation accuracy±2.5%
Insulation resistance≥2MΩ
Voltage withstand2000V 1min (no disruption or flash)
Frequency50Hz/60Hz
Response time≤1.5S (against 10% input voltage deviation)
Effectiveness≥98%
Waveform distortionNo additional waveform distortion
Working environmentTemperature :-10℃ to +40℃, Humidity: <90%
Protection functionOvervoltage, over current, phase missing, phase sequence production and mechanical fault protection
Grid electric functionConvenient change for grid electric and regulating electric
Working methodLong term continuous work
Start methodPowe selectable automatic start or manual start
Product nameProduct modelNumber ofcabinetsOUT PUTSize(mm)LxWxH
SBW series
Three-phase full self
Dynamic compensation
Power regulation
Device
SBW-30KVASingle cabinet380V±3%750X600X1250
SBW-50KVASingle cabinet380V±3%750X600X1250
SBW-60KVASingle cabinet380V±3%750X600X1250
SBW-80KVASingle cabinet380V±3%850X620X1400
SBW-100KVASingle cabinet380V±3%850X620X1400
SBW-120KVASingle cabinet380V±3%850X620X1400
SBW-150KVASingle cabinet380V±3%1000X700X1600
SBW-200KVASingle cabinet380V±3%1000X700X1600
SBW-250KVASingle cabinet380V±3%1100X800X1900
SBW-300KVASingle cabinet380V±3%1100X800X1900
SBW-350KVASingle cabinet380V±3%1100X800X1900
SBW-400KVASingle cabinet380V±3%1100X1250X2000
SBW-500KVASingle cabinet380V±3%1100x1250X2000
SBW-600KVASingle cabinet380V±3%1100X1250X2000
SBW-800KVADouble cabinet380V±3%1700X1300X2000

The control system uses advanced integrated circuits. The automatic sampling control circuit drives the servo motor, adjusting the carbon brush position of the auto-voltage regulator to maintain a steady output voltage.

Three-Phase-Voltage-Regulator
Three-Phase-Voltage-Regulator

Carbon Brushes: Uses 1017 carbon brushes imported from Germany, providing anti-oxidation, high temperature resistance, corrosion resistance, energy savings, and high efficiency.
Servo Motor: Imported materials ensure long-lasting motor performance, which is crucial for the stabilizer’s operating life.
Microcomputer Control Panel: High-quality control board extends the stabilizer’s service life. Typically, single circuit board control is used, but dual computer control boards are equipped for stable 24/7 operation.
Stroke Control Switch: Provides overvoltage and undervoltage protection.
Panel and Finish: Features neatly routed components and first-class workmanship.

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