The 30kVA Automatic Voltage Stabilizer is a heavy-duty power protection system designed for industrial, commercial, and facility-wide applications. It supports an input range of approximately 260V–430V (phase-to-line) and delivers a stable 380V/400V/415V output with ±3% accuracy at 50Hz/60Hz. Its servo motor control provides smooth, step-less voltage regulation using motor-driven carbon brushes and a copper transformer coil. A digital LED/LCD display shows real-time input and output voltage for each phase. Built-in protection safeguards equipment against low/high voltage, power surges, short circuits, overheating, phase failure, and incorrect phase sequence. Typically weighing 120–135kg, it is suitable for heavy machinery, water pumps, elevators, CNC machines, hospitals, data centers, hotels, and office complexes.