An Automatic Servo Voltage Stabilizer (Balanced Type) is an electrical device used to maintain a constant output voltage despite fluctuations in the input supply. It is commonly used for sensitive equipment in industries, offices, hospitals, and large residential setups.
In a balanced type stabilizer, the correction of voltage is distributed equally across both sides (positive and negative half cycles or phases). This ensures:
- Symmetrical voltage correction
- Better stability and accuracy
- Reduced stress on components
⚙️ Main Components:
- Servo Motor – Drives the mechanism to adjust voltage
- Variable Transformer – Regulates voltage
- Buck-Boost Transformer – Adds or subtracts voltage
- Control Circuit – Detects voltage fluctuations and signals correction
- Carbon Brush Assembly – Moves over the transformer to adjust output
✅ Advantages:
- High accuracy (±1% output voltage)
- Smooth and continuous correction (no sudden jumps)
- Suitable for sensitive equipment (CNC machines, medical devices)
- Longer equipment life due to stable voltage
📌 Applications:
- Industrial machinery
- Hospitals and diagnostic equipment
- Data centers and IT systems
- Elevators and HVAC systems

