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SBW Series | Three Phase Servo Voltage Stabilizer | 100kVA-1000kVA | Industrial Grade
The SBW Industrial Servo Voltage Stabilizer provides automatic voltage correction for large industrial equipment and production systems. It is suitable for continuous operation and applications requiring reliable voltage stability. Key Features: 100kVA+ high-power capacity Three phase servo-controlled regulation Smooth voltage adjustment Wide load adaptability Automatic and manual operation options Strong overload and protection functions
Voltage instability is one of the leading causes of equipment failure, production downtime, and energy waste in industrial facilities. In many regions — particularly across South America, Africa, Southeast Asia, and the Middle East — grid voltage fluctuations, sags, surges, and phase imbalances are common and can severely damage sensitive machinery.
This three-phase high-power voltage stabilizer continuously monitors the incoming three-phase voltage and automatically corrects it in real time, ensuring your equipment always receives a clean, balanced, and stable power supply. Unlike standard stabilizers, this industrial-grade unit is built to handle heavy inrush currents, continuous 24/7 operation, and harsh industrial environments.
| Parameter | Value / Range |
| Model Range | SBW-100 kVA to SBW-2000 kVA |
| Number of Phases | Three-phase (3Φ + N + PE) |
| Input Voltage | 380V / 400V / 415V ±15% (standard); extended ±20% / ±25% available |
| Output Voltage | 380V / 400V / 415V (adjustable) |
| Output Accuracy | ±3% |
| Frequency | 50 Hz / 60 Hz |
| Capacity Options | 100 / 150 / 200 / 250 / 300 / 400 / 500 / 630 / 800 / 1000 / 1250 / 1600 / 2000 kVA (adjust) |
| Correction Method | Servo motor + carbon brush (standard) |
| Response Time | Servo: ≤ 1–3 s |
| Efficiency | ≥ 95% |
| Waveform Distortion | No additional distortion (servo) |
| Overload Capability | 120% for 10 min |
| Insulation Resistance | ≥ 5 MΩ |
| Dielectric Strength | 3000 VAC / 1 min (phase to ground) |
| Protection | OVP / UVP / OCP / SCP / OTP / Phase-loss / Phase-sequence |
| Display | Digital LED/LCD: input V, output V, current |
| Communication (Optional) | RS485, Modbus RTU, SNMP, dry contacts |
| Bypass | Manual bypass (optional ); automatic bypass (optional) |
| Cooling | Natural air convection / forced ventilation (auto-controlled fans) |
| Noise Level | ≤ 65 dB (servo) / ≤ 55 dB (static) at 1 m |
| Operating Temperature | –10 °C to +45 °C (standard); extended ranges available |
| Humidity | ≤ 95% RH (non-condensing) |
| Altitude | ≤ 1000 m (derating above; consult factory) |
| Protection Rating | IP20 (standard); IP23 / IP40 / IP54 (optional) |
Manufacturing & Processing – CNC machines, laser cutters, injection molding, packaging lines, textile machinery
Heavy Industry – Steel mills, cement plants, chemical processing, automotive assembly
Mining & Quarrying – Crushers, conveyors, drilling equipment
Medical & Healthcare – MRI, CT scanners, X-ray equipment, hospital power systems
Data Centers & IT – Servers, network equipment, UPS input conditioning
Commercial Buildings – Shopping malls, airports, hotels, high-rise office buildings
Infrastructure – Water treatment plants, pumping stations, railway signaling
Renewable Energy – Solar farm output conditioning, wind farm auxiliary power
Construction Sites – Tower cranes, concrete batching plants, temporary power
Packing: Export-grade wooden crate or steel skid, moisture-proof wrapping,
Transport: Suitable for 20 ft / 40 ft container depending on unit size and quantity.
Delivery Time: Typically 20 – 45 days after order confirmation (adjust to your actual lead time).
Incoterms: EXW / FOB / CIF / DDP – flexible terms available.
Documentation: Commercial invoice, packing list, Bill of Lading, Certificate of Origin, factory test report, CE certificate.
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