The SBW-F Three Phase Servo Voltage Stabilizer is built to handle large-scale voltage fluctuations caused by unstable grids, high-power machinery, and dynamic industrial loads. Its independent phase regulation design allows each phase to be controlled separately, ensuring accurate compensation even when the input voltage imbalance is severe.
This stabilizer is widely used in manufacturing plants, power distribution systems, CNC centers, textile factories, chemical industries, and other sectors where sensitive equipment requires consistent voltage stability.
Key Features & Advantages
1. Independent Phase Control Technology
Unlike traditional SBW stabilizers with simultaneous regulation, the SBW-F allows each phase to adjust individually, providing:
Higher accuracy
Better response to unbalanced loads
Improved protection for three-phase machinery
Reduced risk of voltage asymmetry
Perfect for workshops with welding machines, motors, compressors, and variable loads.
2. High-Quality Pure Copper Components
Pure Copper Column Regulator
Low resistivity
Strong conductivity
Excellent thermal performance
Enhanced reliability during high current flow
Pure Copper Busbars
Lower power loss
Improved long-term durability
Safe and stable wiring interface
3. Premium Carbon Brush System
Our high-grade carbon brushes deliver:
Smoother voltage correction
Minimum abrasion
Longer lifespan
Reduced maintenance cost
4. High-Efficiency Servo Motor Drive
The servo motor ensures:
Fast response speed
Stable phase-by-phase regulation
Accurate voltage tracking
Quiet and reliable operation
Ensures output accuracy within ±1–3% depending on the configuration.
5. Industrial-Grade Voltage Compensation Transformer
High-temperature enameled copper wire
Low temperature rise
High efficiency (≥95%)
Strong overload capability
Designed for long-term continuous operation.
✔ Protection Functions (Full System Safety)
The SBW-F industrial servo voltage stabilizer includes complete multi-layer protection:
✔ Over-Voltage Protection
Automatic shut-off when output exceeds safe limits.
✔ Under-Voltage Protection
Protects loads when voltage drops excessively.
✔ Over-Current & Short-Circuit Protection
Immediate cut-off to prevent equipment damage.
✔ Overload Protection
Prevents overheating or coil burnout.
✔ Phase Failure / Phase Loss Protection
Essential for protecting motors and three-phase equipment.
✔ Mechanical Fault Protection
Stops output immediately if servo system malfunctions.
With these protections, the stabilizer ensures safety for both the stabilizer itself and downstream equipment.
Technical Parameters
| Model | SBW-F-60KVA~4000KVA | |||||
| Phase | Three phase | |||||
| Input voltage | AC 304-456V or customized | |||||
| Output voltage | AC 380V or customized | |||||
| Frequency | 50Hz/60Hz | |||||
| Precision | ±3% | |||||
| Efficiency | >95% | |||||
| Control type | Servo motor | |||||
| Digital display | Show input and output voltage,Load Ratio and Fault Indicator | |||||
| Protection | Overvoltage, Overload, Short circuit, Over temperature | |||||
| Ambient temperature | -10°C~+ 40°C | |||||
| Relative Humidity | <95% | |||||
| Waveform Distortion | No additional wave form distortion | |||||
| Insulating Resistance | Normally more than 2MΩ | |||||
| Insulating Class | Class B | |||||
|
Protection |
Overvoltage | Output Voltage ≥ 425V ± 4V | ||||
| Low voltage | Output Voltage ≤ 360V ± 4V | |||||
| Over temperature | 95℃±10℃ | |||||
| Delay protection | Customizable | |||||
| Undervoltage | Disabled by default, customizable if needed | |||||
| Power | 60KVA | 100KVA | 150KVA | 180KVA | 200KVA | |
| Size(mm) L*W*H | 1600*800*1600 | 1600*800*1600 | 1600*800*1600 | 1600*800*1600 | 1600*800*1600 | |
| Power | 250KVA | 300KVA | 350KVA | 400KVA | 450KVA | |
| Size(mm) L*W*H | 1600*800*1600 | 2100*850*1700 | 2100*850*1800 | 2100*850*1800 | 2400*1000*1800 | |
| Power | 500KVA | 600KVA | 800KVA | |||
| Size(mm) L*W*H | 2400*1000*1800 | 2400*1000*2000 | 2400*1100*2000 | |||
| The size and weight vary depending on the voltage range, and are subject to the customized actual product. | ||||||
Why Choose ZHENGXI’s SBW-F Three-Phase Servo Voltage Stabilizer?
1. Designed for Harsh Industrial Environments
- Compatible with high-impact equipment such as:
- Injection molding machines
- CNC machining centers
- Textile machinery
- Compressors and pumps
- Printing and packaging lines
- Laser machines
- Industrial automation systems
2. Heavy-Duty & Long-Life Components
Built with copper, industrial bearings, and reinforced coils for long lifespan.
3. Custom Engineering Options
We offer tailored solutions for special grid conditions:
- Extra-wide input range
- Independent or simultaneous regulation
- Higher precision output
- Extended capacity up to 3000 kVA
- Custom cabinets & terminal layouts
4. Stable Performance with No Waveform Distortion
Since this is a servo motor voltage stabilizer, it introduces no additional harmonic distortion, ensuring compatibility with sensitive electronics.
Applications
The SBW-F 100–1000 kVA industrial servo voltage stabilizer is ideal for:
- Manufacturing plants
- Heavy industrial machinery
- Large commercial buildings
- Data centers
- Power distribution rooms
- Government & utility projects
- Energy-intensive production lines
Where stable voltage = reduced downtime, reduced equipment failure, and higher production efficiency.
FAQ
1. What is the difference between independent phase control and simultaneous control?
Independent phase control adjusts each phase separately, ensuring better accuracy under unbalanced conditions.
Simultaneous control regulates all phases together, suitable for balanced loads but less precise in unstable grids.
2. Is the SBW-F suitable for sensitive industrial equipment?
Yes. With ±1–3% accuracy and zero waveform distortion, it is ideal for CNCs, lasers, medical machines, and automated lines.
3. Can the SBW-F be customized for wider voltage ranges?
Absolutely. ZHENGXI specializes in custom designs including:
260–520V ultra-wide input range
480V or 600V output
Higher kVA options
Independent/simultaneous regulation modes
