Voltage Stabilizer
1. Introduction
A voltage stabilizer is a device that maintains a stable output voltage. It mainly consists of a voltage regulation circuit, a control circuit, a servo motor, and other components.When the input voltage or load fluctuates, the control circuit samples, compares, and amplifies the voltage signal, then drives the servo motor to adjust the position of the regulator’s carbon brush.By automatically adjusting the coil turns ratio, it keeps the output voltage stable.
2. Specification
| Model | TND3-2KVA |
| Power capacity | 2KVA (customizable) |
| Input voltage | 180-300V (customizable) |
| Output voltage | 220V (customizable) |
| Stability | ±3% |
| Rated current | 9A |
| Frequency | 50Hz/60Hz |
| Applicable load | Any load |
| Waveform distortion | No additional waveform distortion |
| Dimension and weight | W275mm*D240mm*H205mm/7.5kg |
| Response speed | ≤ 1.5 s (when the input voltage variation not exceeds 10%) |
| Electric strength | 1500V power-frequency sinusoidal voltage for 1 minute, no breakdown or flashover. |
| Protective grade | IP20 |
| Cooling method | Natural cooling&Forced air cooling |
| Protection function | Over-voltage protection: When the output voltage exceeds 10% of the rated voltage, the output will be cut off after a delay of 3–5s. Short-circuit protection: Automatically cuts off the input power when a short circuit occurs on the load. Over-current protection: 5 times rated current, operation time approximately 1s. |
| Required working condition | Installation: Indoor Altitude: Not exceeding 1500 m above sea level Temperature: -15℃~40℃ Humidity: <50% R.H. @40℃R.T. |





