TND Series AVR Stabilizers are single-phase, servo-motor-controlled regulators. They keep output voltage steady at 220V, even when the grid fluctuates.

How it works:
The system uses a servo motor and carbon brush. An internal circuit detects grid changes. It then drives the motor to move the brush. The brush slides along a copper coil to adjust voltage.

This servo drive system causes almost no waveform distortion. It provides smooth, linear regulation. It does not alter the pure AC sine wave.