Three-phase voltage and frequency stabilized power supply
This power supply employs advanced sinusoidal pulse width modulation (SPWM) IGBT high-frequency inverter technology and features an internal AC–DC–AC topology, which completely eliminates grid interference and ensures a pure output waveform. It offers a wide voltage and frequency regulation range, high accuracy, lightweight construction, compact size, and an output equipped with an isolation transformer; thus, it can seamlessly integrate with generators to form a high-quality uninterruptible power supply (UPS) system.
Main technical parameters of the three-phase voltage and frequency stabilization power supply:
- Input voltage: 130–280 V;
- Input frequency: 35–70 Hz;
- Output voltage: 220 V ±0.5%;
- Output frequency: 50 Hz ±0.01%;
- Waveform distortion: <1%;
- The isolation transformer provides output with high safety and reliability;
- Features automatic protection and alarm functions against output overvoltage, overcurrent, overload, overheating, and short circuits;
- Efficiency exceeds 90%; it is suitable for a wide range of loads, including inductive, capacitive, resistive, and any combination thereof;
- The dynamic response is extremely fast; when the load varies from 0–100%, the steady-state response time is <0.1s;
- Please specify the input and output voltages and frequency when placing your order;
Application scope of three-phase voltage and frequency stabilization power supplies:
- Railway, aviation, and maritime systems;
- Precision testing of medical electronic devices;
- Power supply for imported electronic and electrical equipment;
- Testing of exported electronic and electrical products;
- CNC machine tools, light industry and textile manufacturing, automated production lines;
- Provide supporting components for the generator plant to form a high-performance uninterruptible power supply (UPS) system.
| name of a part | Low-power three-phase voltage and frequency stabilization power supply |
| Machine Model | ACW-306 | ACW-3010 | ACW-3015 | ACW-3020 | ACW-3030 | ACW-3045 |
| capacity | 6KVA | 10KVA | 15KVA | 20KVA | 30KVA | 45KVA |
| Circuit Configuration | IGBT/PWM (Pulse Width Modulation) method |
| AC input | voltage | 265V-495V |
| frequency | 30Hz-70Hz |
| AC Output | Phase | three-phase |
| voltage | 380V ±0.5% or as specified by the user |
| output frequency | 50Hz or 60Hz ±0.01% |
| frequency stability | ≤±0.01% |
| Voltage Regulation Rate | ≤1% |
| Waveform distortion degree | ≤1% |
| reaction time | The dynamic response is extremely fast; when the load varies from 0% to 100%, the steady-state response time is <20 ms. |
| Indication/Resolution | Digital Frequency Meter | Resolution: 0.1 Hz |
| Digital Voltmeter | Resolution: 0.1 V |
| Digital Ammeter | Resolution: 0.1 A |
| Digital Power Meter | Resolution: 0.1W |
| work efficiency | The efficiency exceeds 90%, offering a wide range of applicable loads—capable of handling inductive, capacitive, resistive, or any combination of these load types. |
| protector | Equipped with no-fuse input and output; the electronic circuit rapidly detects overvoltage, overcurrent, overload, excessive temperature, and short circuits, automatically triggering protection and alarm mechanisms. |
| Insulating reactance | 500 Vdc, ≥ 20 MΩ |
| Dielectric insulation | 1800 VAC / 5 mA / 1 minute |
| cooling equipment | Forced fan cooling |
| other | The isolation transformer provides a safe and reliable output with excellent anti-interference performance. |
| environment | working temperature | -10℃～40℃ |
| relative humidity | 0–90% (non-condensing state) |
| above sea level | 1,500 meters |
| name of a part | High-power three-phase voltage and frequency stabilized power supply |
| Machine Model | ACW-3060 | ACW-3100 | ACW-3150 | ACW-3300 | ACW-3600 |
| capacity | 60KVA | 100KVA | 150KVA | 300KVA | 600KVA |
| Circuit Configuration | IGBT/PWM (Pulse Width Modulation) method |
| AC input | voltage | 265V-495V |
| frequency | 30Hz-70Hz |
| AC Output | Phase | three-phase |
| voltage | 380V ±0.5% or as specified by the user |
| output frequency | 50Hz or 60Hz ±0.01% |
| frequency stability | ≤±0.01% |
| Voltage Regulation Rate | ≤1% |
| Waveform distortion degree | ≤1% |
| reaction time | The dynamic response is extremely fast; when the load varies from 0% to 100%, the steady-state response time is <20 ms. |
| Indication/Resolution | Digital Frequency Meter | Resolution: 0.1 Hz |
| Digital Voltmeter | Resolution: 0.1 V |
| Digital Ammeter | Resolution: 0.1 A |
| Digital Power Meter | Resolution: 0.1W |
| work efficiency | The efficiency exceeds 90%, offering a wide range of applicable loads—capable of handling inductive, capacitive, resistive, or any combination of these load types. |
| protector | Equipped with no-fuse input and output; the electronic circuit rapidly detects overvoltage, overcurrent, overload, excessive temperature, and short circuits, automatically triggering protection and alarm mechanisms. |
| Insulating reactance | 500 Vdc, ≥ 20 MΩ |
| Dielectric insulation | 1800 VAC / 5 mA / 1 minute |
| cooling equipment | Forced fan cooling |
| other | The isolation transformer provides a safe and reliable output with excellent anti-interference performance. |
| environment | working temperature | -10℃～40℃ |
| relative humidity | 0–90% (non-condensing state) |
| above sea level | 1,500 meters |
Aviation Ground Support
Suitable for aircraft ground power systems and aviation maintenance operations.
Onshore Power Supply
Shore power supplies electricity to docked ships from land grids, replacing on-board generators to cut fuel consumption and emissions.
Variable Frequency
Variable frequency power supply outputs adjustable voltage and frequency. It simulates global grid power for testing electrical equipment.
Military & Defense
Applicable to military electronic systems and specialized defense equipment testing.
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