What Is an SBW 3 Phase Servo Voltage Stabilizer?
An SBW 3 Phase Servo Voltage Stabilizer is an industrial electromechanical voltage regulation system that automatically corrects three-phase input voltage fluctuations and delivers a stable output voltage to connected equipment.
Unlike relay-type stabilizers, a servo voltage stabilizer uses a servo motor to drive a carbon brush over a precision copper-wound autotransformer. This design enables:
- Continuous and smooth voltage regulation
- High output accuracy (±3%)
- Minimal waveform distortion
- Stable torque output for three-phase motors
The SBW series is widely used in industrial applications where high power capacity, voltage balance, and operational reliability are critical, such as CNC machines, compressors, elevators, and automated production lines.
Chief Benefits of SBW 3 Phase Servo Voltage Stabilizer:
High Precision Three Phase Voltage Regulation
The SBW servo voltage stabilizer has a regulated accuracy of ±3%, which provides protection for industrial motors, PLCs, as well as control equipment from voltage failure.
High Efficiency for Continuous Industrial Operation
With an efficiency level of over 95%, the power loss of the Three Phase Stabilizer is minimized. It can thus be used for continuous operation in industries.
Reliable Servo Control Technology
The regulation of the servo motor allows for the correction of voltage in a step-less manner without the involvement of sudden voltage changes. This will ensure a smooth supply of power to the mechanical components that are being controlled by the servo motor.
Comprehensive Industrial Protection System
Several protection functions are built-in to protect both the stabilizer and the load during unusual conditions.
Low Noise and High Performance
Since the noise level is ≤50dB, the SBW stabilizer can be located close to the production unit without affecting the environment.
Main technical parameter
| Model | SBW-60KVA SBW-100KVA SBW-150KVA SBW-200KVA SBW-250KVA SBW-300KVA |
| Phase | 3 phase |
| Input voltage | AC 304-456V or customized |
| Output voltage | AC 380V or customized |
| Frequency | 50 HZ/60HZ |
| Precision | 3% |
| Work efficiency | >95% |
| Control type | Servo motor |
| Digital display | Show input and output voltage |
| Protection | Over/Under Voltage, Over Load, Short Circuit, Over Temperature |
| Ambient temperature | -10°C~+ 40°C |
| Noise level | ≤50dB |
Applications of SBW Industrial Three Phase Stabilizer
The Common Applications of the SBW Industrial Outdoor 100KVA 3 Phase Servo Voltage Stabilizer:
- Computer Numerical Control machine tools
- Injection molding machines
- Elevators and hoisting systems
- Air compressors
- Printing and packaging production line.
- Textile and chemical machinery
- Mining and construction machinery
- Industrial power distribution rooms
The above solution is applicable for any industrial purpose that requires stable and balanced three-phase voltage.
SBW Servo Voltage Stabilizer vs Other Three Phase Stabilizers
Servo Voltage Stabilizer vs Relay Type Three Phase Stabilizer
Servo Type: Continuous regulation, higher precision, longer service life
Relay Type: Step regulation, lower accuracy, limited lifespan
Servo Voltage Stabilizer vs Static Voltage Stabilizer
Servo Type: Cost-effective for high power, robust structure, suitable for harsh environments
Static Type: Faster response speed, higher cost, more complex electronic components
For outdoor industrial use and heavy mechanical loads, the SBW servo voltage stabilizer provides an optimal balance between performance, durability, and cost.
How to Choose the Proper 3-Phase Stabilizer for Industrial Machines
When you need a three-phase servo voltage regulator, you need to consider the following aspects:
- Total Load Capacity: The capacity of the voltage regulator should be at least twice the maximum load of the device.
- Scaled voltage requirements: Input voltage range needs to match the stabilizer voltage range, which in turn should match the mains voltage. Either standard
- Installation Environment: In the outdoor environment, the enclosures need to be weather-tight and
- Future Expansion: Include capacity buffer for the possibility of future expansion.
- Manufacturer Experience: Choose a manufacturer with actual experience in industry.
Why Choose ZHENGXI as Your 3 Phase Voltage Stabilizer Manufacturer?
- Over 20 years in the manufacturing of low-voltage electrical equipment
- Specialized producer of voltage stabilizers & transformers
- IEC / CE / ISO 9001 certified production system
- Rich OEM/ODM experience in serving world top industrial brands
- Available custom voltage requirements, case types, and configurations
- Products exported to multiple industrial markets globally
ZHENGXI emphasizes the need to supply efficient power solutions in industry.
FAQ
Q1: Can the SBW 100KVA three-phase power stabilizer be customized?
A: Yes. The input voltage range, output voltage, and housing type are able to be customized depending on the requirements.
Q2: Can this SBW servo voltage stabilizer be used in an outdoor environment?
A: Yes. The SBW outdoor series is made with weatherproof and rugged enclosures for use in the outdoor industrial sector.
Q3: What is required for maintaining a servo voltage stabilizer?
A: It is advisable to check the servo motor and carbon brush periodically. When properly maintained, the system will function well at all times.
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