What Is a Servo Type AVR?
A Servo Type AVR (Automatic Voltage Regulator) is an intelligent device that monitors and stabilizes input voltage using a servo motor-driven system. Unlike traditional relay-based regulators that switch in steps, servo AVRs provide continuous, smooth, and precise voltage adjustment—which is essential for sensitive loads like computers, refrigerators, televisions, and laboratory instruments.
The vertical type design with a digital display not only saves space but also gives users a clear view of voltage conditions and load status.
| Model | AVR-500VA | AVR-1000VA | AVR-1500VA | AVR-2000VA | AVR-3000VA | AVR-5000VA | |
| Phase | Single phase | ||||||
| Input voltage | AC 110-260V, 140-260V (or customized) | ||||||
| Output voltage | AC 220V or customized | ||||||
| Frequency | 50Hz/60Hz | ||||||
| Precision | ±3% or customized | ||||||
| Efficiency | >95% | ||||||
| Control type | Servo motor | ||||||
| Digital display | Show input and output voltage,Load Ratio and Fault Indicator | ||||||
| Protection | Over temperature, Overvoltage, Overload, Time delay | ||||||
| Ambient temperature | -10°C~+ 40°C | ||||||
| Relative Humidity | <95% | ||||||
| Waveform Distortion | No additional wave form distortion | ||||||
| Insulating Resistance | Normally more than 2MΩ | ||||||
| Insulating Class | Class B | ||||||
| Protection | Overvoltage | Output Voltage ≥ 245V ± 4V | |||||
| Low voltage | Output Voltage ≤ 180V ± 4V | ||||||
| Over temperature | 95℃±10℃ | ||||||
| Delay protection | Customizable | ||||||
| Undervoltage | Disabled by default, customizable if needed | ||||||
| Power | 500VA | 1000VA | 1500VA | 2000VA | 3000VA | 5000VA | |
| Size(mm) L*W*H | 170*190*145 | 206*217*165 | 206*217*165 | 241*262*186 | 236*292*216 | 245*310*250 | |
| The size and weight vary depending on the voltage range, and are subject to the customized actual product. | |||||||
Note: Size and weight may vary based on customization or voltage range.
SUNWAY AVR Advantages at a Glance
SUNWAY’s servo AVRs are built with advanced engineering, strict quality control, and real-world usage in mind. Here’s why professionals and homeowners trust our solutions:
- Servo Motor Precision: Ensures ±3% voltage accuracy with minimal waveform distortion.
- Wide Input Range: Compatible with AC 110V–260V, ideal for areas with unstable grids or frequent voltage drops.
- High Efficiency: With >95% operational efficiency, energy loss is minimized.
- Smart Digital Display: View input/output voltage, load ratio, and fault indicators in real time.
- Comprehensive Protection: Built-in defenses against overvoltage, overload, overheating, and delayed startup.
- Quiet & Compact Design: The vertical chassis saves space and reduces operational noise.
How Is It Different from Other Voltage Regulators?
Unlike relay-type or static voltage regulators, servo AVRs offer true continuous control, not stepped adjustments. That means:
- Smoother output with no flickering or sudden jumps
- Longer lifespan for connected devices
- More reliable performance under fluctuating or unbalanced loads
FAQ
1. What’s the difference between a relay and servo AVR?
Relay AVRs switch voltage in fixed steps, which can be slow and imprecise. Servo AVRs, like SUNWAY’s, adjust voltage continuously using a motorized system, offering better accuracy and smoother operation.
2. Is the digital display accurate and useful?
Absolutely. Our digital display provides real-time voltage data, helping users monitor both the input and output voltage, load percentage, and fault conditions clearly and intuitively.
3. Can I use this AVR with solar inverters or generators?
Yes. SUNWAY servo AVRs are compatible with most generators and inverter systems, provided they fall within the input voltage and frequency range. Customization options are available if needed.
