Feixiangda Variable Frequency Power Supply is a standard AC power supply device that can simulate standard power supplies from various countries around the world. Input a single AC voltage and frequency, and internally pass through AC to DC; After the conversion of DC to AC, it generates a very stable and pure sine wave with high activation current, which can display multiple parameters (such as voltage, frequency, current, apparent power, power factor, etc.).
This product adopts advanced PWM (Pulse Width Modulation) technology and Digital Signal Processor (DSP) technology, providing high precision measurements function of voltage, frequency, current, apparent power and power factor etc. The use of high power IGBT module design to reduce circuit complexity, enhance AC power Source stability and reduce power consumption. The isolation transformers completely isolate the mains and the loads, in order to improve the loads stability and a variety of testing performance, to ensure the accuracy of test values for the loads.
Power Range: 500VA ~ 500KVA
Input Voltage: Single Phase 220V / Three Phase 380V
Output Voltage: Single Phase 0-300V / Three Phase 0-520V
Output Frequency: 40Hz-400Hz (40Hz-499.9Hz optional)
Manufacturing Method: IGBT/PWM Pulse Width Modulation
Overall Efficiency: ≥85%
The Variable Frequency Power Supply works based on the AC-DC-AC double conversion principle:
| Feature | Description |
|---|---|
| Simulate World Standard Power Supplies | Can simulate voltage and frequency standards of different countries, suitable for export electrical product testing. |
| PWM+DSP Technology | Adopts advanced Pulse Width Modulation and Digital Signal Processor technology, achieving high precision measurement functions. |
| IGBT Module Design | High power IGBT module, reduces circuit complexity, enhances AC power source stability, reduces power consumption. |
| Isolation Transformer | Completely isolates the mains and the loads, improving load stability and various testing performance, ensuring accurate test values. |
| Wide Range Voltage/Frequency Adjustment | Voltage 0-300V/0-520V, frequency 40Hz-400Hz adjustable (40Hz-499.9Hz optional). |
| 4-Digit LED Display | Voltage, frequency, current, power 4 windows simultaneously measure and display, no switching needed, simple and easy to read. |
| Pure Sine Wave Output | Outputs stable and pure sine wave, harmonic distortion ≤3%, no harmonic pollution to loads. |
| Strong Overload Capacity | Instant current can withstand 3 times rated current, suitable for impact load testing. |
| Multiple Protection Functions | Equipped with over current, over temperature, short circuit, instant power off protection and alarm devices, safe and reliable. |
| Wide Applicability to Loads | Suitable for resistive, capacitive, inductive and other nonlinear loads. |
| Item | Parameter |
|---|---|
| Manufacturing Method | IGBT/PWM Pulse Width Modulation |
| Capacity | 500VA / 1KVA / 2KVA / 3KVA / 5KVA / 10KVA / 15KVA / 20KVA / 30KVA |
| Input Phase | Single Phase |
| Input Voltage | 1 Phase 2 Wire: 220V±10% |
| Input Frequency | 50Hz/60Hz |
| Output Voltage | 0-150V (Low Voltage range) / 0-300V (High Voltage range) |
| Output Frequency | 40Hz-400Hz |
| Load Regulation | ≤±1% |
| Frequency Stability | ≤±0.01% |
| Harmonic Distortion | Pure Sine Wave ≤3% |
| Crest Factor | 3:1 |
| Overall Efficiency | ≥85% |
| Reaction Time | ≤2ms |
| Protection | Overload, short circuit, over temperature, instant power off protection and alarm device |
| Display Interface | Digital LED Display |
| Frequency Display | 4 digits, resolution 0.1Hz |
| Voltage Display | 4 digits, resolution 0.1V |
| Current Display | 4 digits, resolution 0.1A |
| Power Display | 4 digits, resolution 1W |
| Working Temperature | -15℃-40℃ |
| Working Humidity | 0-90% (Non condensation) |
| Altitude | ≤1500m |
| Cooling Method | Fan cooled |

| Application | Description |
|---|---|
| Laboratory Testing | Provides standard power for laboratory electrical equipment, conducting product performance testing and verification. |
| Manufacturing Inspection | Provides testing power of different voltage and frequency for manufacturing enterprises, ensuring product quality. |
| R&D Department | Provides adjustable power for R&D personnel, used for new product development and testing. |
| Export Appliance Testing | Simulates voltage and frequency standards of different countries, testing the adaptability of export electrical products. |
| Aerospace | Provides 400Hz medium frequency power testing for avionics equipment. |
| Military Defense | Provides power testing of different standards for military equipment. |
| Medical Equipment | Provides stable and pure testing power for medical instruments. |
| Communication Equipment | Provides power testing of different frequencies for communication equipment. |
| Home Appliance Testing | Provides power testing of different national standards for household appliances. |
| Education and Training | Provides adjustable power for teaching in school laboratories. |
| Item | Detail |
|---|---|
| Quality System | ISO9001 Quality Management System Certification |
| Product Certification | CE Certified (Compliant with relevant standards) |
| Testing Process | 100% full inspection + 48-hour full-load aging test |
| Warranty | 12 months standard warranty, extendable to 36 months |
| After-sales Service | Lifetime technical support, 7×24 rapid response |
| Advantage | Description |
|---|---|
| Source Factory | Nearly 20 years of power equipment manufacturing experience, own production lines, cost-controlled, guaranteed delivery. |
| Quality Assurance | 100% inspection + 48-hour aging test, ISO9001 certified, product yield rate over 99.7%. |
| Flexible Customization | Supports non-standard customization for capacity, voltage, frequency, communication interface, etc., meeting special requirements. |
| Global Service | 7×24 technical support, 12-month warranty (extendable), lifetime maintenance. |
| Professional Team | Experienced R&D engineers and foreign trade team, providing selection guidance and technical consultation. |
| Technical Accumulation | Nearly 20 years of power equipment manufacturing technical accumulation, mature and reliable products, compliant with international standards. |
Q1: What is the difference between a variable frequency power supply and a regular voltage regulator?
A: A variable frequency power supply can not only adjust voltage but also adjust output frequency (40Hz-400Hz), simulating standard power supplies from various countries. A regular voltage regulator can only stabilize voltage, not adjust frequency.
Q2: What is the output frequency range of this variable frequency power supply?
A: Standard output frequency range is 40Hz-400Hz, optional 40Hz-499.9Hz.
Q3: What is the output voltage range of this variable frequency power supply?
A: Single phase output 0-300V, three phase output 0-520V (line voltage).
Q4: What is the harmonic distortion of this variable frequency power supply?
A: Harmonic distortion ≤3%, pure sine wave output.
Q5: What is the overload capacity of this variable frequency power supply?
A: Instant current can withstand 3 times rated current, with extremely strong overload capacity.
Q6: What types of loads is this variable frequency power supply suitable for?
A: Suitable for resistive, capacitive, inductive and other nonlinear loads.
We look forward to becoming your reliable power solution partner!