
Servo Motor Automatic Voltage Regulator (AVR) – High-Precision AC Stabilizer
Overview
The Servo Motor Automatic Voltage Regulator (AVR) utilizes a motorized variable autotransformer (variac) coupled with a control circuit and a servo motor. When grid voltage fluctuates, the motor automatically adjusts the carbon brush position along the transformer winding to instantly correct the output voltage back to a stable 220V/230V level, protecting expensive equipment from brownouts and overvoltage spikes.
Key Features
High Output Precision: Delivers stable, tightly regulated voltage compared to standard relay-type stabilizers.
Motor-Driven Adjustment: Uses a responsive servo motor mechanism for smooth and continuous voltage correction.
Wide Input Range: Automatically steps up low voltage and steps down high voltage from unstable utility grids.
Comprehensive Protection: Built-in safeguards against short-circuits, output over-voltage, and thermal overload.
Technical Specifications
| Feature | Specification |
| Regulation Type | Servo Motor Controlled (Variac + Buck-Boost) |
| Input Voltage Range | Wide operating window (e.g., 130V–260V depending on model capacity) |
| Output Voltage | 220V / 230V AC ±3% |
| Frequency | 50Hz / 60Hz |
| Display | Analog or Digital Voltage Meters |
Ideal Applications
Home Appliances: Safeguarding refrigerators, air conditioners, and sensitive entertainment centers.
Office & IT Equipment: Protecting computers, servers, and communication systems from line surges.
Industrial Instruments: Providing clean, stable power to sensitive laboratory and workshop machinery.
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