PA9533-30 Three-phase intelligent programmable variable frequency power supply
1.1 Features
- High-frequency SPWM hardware adjustment technology, fast response speed, stable output;
- High-power IGBT/IPM drive, reliable operation and strong overload capacity
- Suitable for various loads such as resistive, inductive, rectifying, etc.;
- With protection functions for abnormal conditions such as overheating, overcurrent, short circuit, etc.;
- With parameter memory function and shortcut key operation mode, it is simple and convenient to use;
- The power supply voltage can be adjusted online, and the output frequency can be selected;
- The touch screen LCD display is clear and eye-catching, and the viewing angle is large, which is convenient for the production line;
1.2 Main purpose and scope of application
- Professional laboratory (EMI/EMC/safety regulations);
- Manufacturing plant (Quality Assurance/Life Test);
- Testing of products for export, simulating power grids of various countries;
- Product development and testing.
1.3 Working environment conditions
- Working temperature:0~40℃
- Relative humidity: 10%~90%RH
Technical parameters:
| model |
PA9533-30 |
| capacity |
30KVA |
| Input power |
380V±10% AC Three-phase four-wire |
| Input frequency |
50/60Hz±5Hz |
| AC output |
Phase |
Three-phase four-wire system |
| model |
Three-phase standard mode |
| Voltage |
Phase voltage 0-300V, line voltage 0-520V |
| frequency |
45-65Hz |
| Three-phase standard mode rated current |
120V |
84A |
| 240V |
42A |
| Setting accuracy |
Voltage |
Resolution: 0.1V, accuracy: 0.2%*reading value+0.2%*full scale value |
| frequency |
Frequency resolution: 0.1Hz, accuracy: 0.05% |
| measurement accuracy |
Voltage |
Resolution: 0.1V, accuracy: 0.2%*reading value+0.2%*full scale value |
| frequency |
Resolution: 0.1Hz, accuracy: 0.05% |
| Current |
Resolution: 0.1A/1A, accuracy: 0.3%*display value+0.3%*rated output value |
| power |
Resolution: 0.1kW/0.01kW/0.001kW, accuracy: 0.45%*reading value+0.45%*full scale value |
| Output waveform |
Standard sine wave |
| Frequency stability |
≤0.01% |
| Voltage stability |
≤1% |
| Waveform distortion |
≤2%(Resistive load) |
| Crest factor |
3:1 |
| Source voltage effect |
≤1% |
| Load effect |
≤1% |
| Three-phase phase difference |
Three-phase standard mode: 120°±2° |
| efficient |
≥85% |
| Load type |
No load type limitation (resistive, inductive, capacitive, rectifier can be used) |
| Function |
Display method |
Frequency, voltage, current, power and power factor 7-inch touch screen display |
| Online adjustment |
The output voltage and output frequency can be adjusted online |
| memory function |
Power-down memory function, can memorize the last output mode and parameters |
| Protective function |
Overload, overcurrent, overvoltage, overheating, short circuit protection, etc. After the protection device is activated, it will send out an alarm signal and display the fault code |
| Preset function |
The output voltage and output frequency can be preset |
| Overload capacity |
1.0Ie |
| 1.1Ie≤I output≤1.2Ie, cut off output after 5s |
| External communication interface (optional) |
RS-485 |
| Enclosure rating |
IP20 |
| Use environment |
Temperature: -10℃~40℃ Humidity: 10%~90% (25℃ without condensation), altitude ≤2000m |
| Dimensions (W*H*D) |
590*1100*800 mm |
| weight |
350kg |
FAQ | Short & Clear Version
Application & Parameter
Q1: What is this AC variable frequency power supply for?
A: It is industrial precision test equipment for home appliance testing, electronic certification, lab research, motor aging and export commodity inspection. It simulates global grid voltage and frequency for worldwide testing standards.
Q2: What voltage and frequency can you output?
A: Standard output: 0–500V adjustable, 40Hz–499.9Hz adjustable. Support single/three-phase and high-power customization to fit all country power standards.
Q3: Can it run 24 hours continuously?
A: Yes. Industrial full-load design with professional heat dissipation system, stable for 24/7 non-stop production line and laboratory long-time testing.
Performance & Safety
Q4: How precise is your power output?
A: Voltage accuracy ±0.1%FS, frequency accuracy ±0.01Hz, THD＜1%. Pure sine wave output ensures accurate and repeatable test data.
Q5: Does it work with unstable local power grid?
A: Yes. Built-in anti-interference and surge protection module. It filters grid noise and stabilizes output, suitable for unstable power areas in Southeast Asia, Africa and South America.
Q6: What safety protection do you have?
A: 8 protections including overload, short circuit, overvoltage, overcurrent, overheat and lightning protection. Auto power-off alarm protects machine and test samples safely.
Custom & After-sales
Q7: Do you support customization?
A: Yes. Customizable power range, special voltage/frequency, multi-language panel, remote control and data recording to meet different industrial needs.
Q8: What is your warranty & overseas service?
A: 1-year global warranty + lifelong technical support. 24h online English guidance, free English manual and operation videos.
Q9: Do you support export customs clearance?
A: All products pass CE & ISO9001 certification. We provide full export documents for smooth customs clearance.
Product Usage Suggestions
1. Installation Environment
- Place indoors in dry, clean and ventilated conditions, working temperature: 0℃–40℃
- Reserve over 30cm space around the machine for heat dissipation
- Reliable grounding required for operation safety
2. Before Operation
- Check input & output wiring to avoid wrong connection
- Run 5–10 minutes no-load test for first use to confirm stable status
- Store common test parameters for fast batch testing
3. Daily Operation
- Avoid frequent instant start-stop for motor and inductive loads
- Observe machine temperature and running status during long-time operation
- Match voltage regulator if local grid fluctuates heavily
4. Regular Maintenance
- Clean fan and vent dust every 1–3 months
- Check terminal connection tightness every half year
- Cover dust cover and power off for long-term idle use
