
PSI1000
3-Phase AC Power Supply
Many applications require stable and adjustable test voltages at various frequencies. The Solfas PSI1000 power supply series can simulate all the mains voltages and frequencies used worldwide. They are ideal for routine testing of home appliances and other products intended for the global market.
Compact and Energy Efficient
Thanks to state-of-the-art frequency inverter technology and high-quality components, PSI1000 power supplies ensure efficient and reliable power output.
Their compact design and small footprint allow for great flexibility in terms of integration and positioning. Two power ranges provide optimal adaptation to higher current requirements at lower voltages.

Sine Voltage – Low Distortion
The PSI1000 power supplies allow qualified tests and precise measurements with sinusoidal output voltage and low distortion.


Precision Measurement and Control
Precise digital regulation ensures a stable output voltage, independent of line voltage and output load. This provides constant conditions for testing high-quality products.
Voltage, current, and power are measured at each output phase. The system is protected against short circuits, overloads, and overheating.
Features
3-Phase AC Power Output
Delivers stable three-phase AC power for demanding industrial test applications.
Single-Phase Load Support
Supports both single-phase and three-phase loads for maximum testing flexibility.
Scalable Power Options
Available in 15, 25, 50 and 75 kVA models to match a wide range of testing needs.
Low Distortion Output
Stable sinusoidal output with low distortion for accurate measurements.
High Measurement Accuracy
Measures voltage, current, power, frequency and power factor on each phase.
Digital Voltage Control
Maintains constant output despite changing input voltage or load conditions.
Touch Display Interface
Intuitive touch display provides fast setup, monitoring and operation.
Ethernet Remote Control
Integrated Ethernet interface with web interface enables remote control and system integration.
Full Protection
Integrated protection against overload, short circuit, overvoltage and overtemperature.
Key Benefits
Technical Specifications
| Model | PSI1015 | PSI1025 | PSI1050 | PSI1075 |
|---|---|---|---|---|
| Output power | 15kVA | 25kVA | 50kVA | 75kVA |
| Output Voltage | Range 1: 240V LL / 140V LN Range 2: 480V LL / 280V LN |
|||
| Output current | Range 1: 36A Range 2: 18A |
Range 1: 60A Range 2: 30A |
Range 1: 120A Range 2: 60A |
Range 1: 180A Range 2: 90A |
| Output frequency | 45 ... 65Hz¹ | |||
| Distortion | <1%² | |||
| Input voltage | 3AC380-480V 50-60Hz | |||
| Input current | 32A | 50A | 100A | 150A |
| Measurements | Voltage, current, power, power factor, frequency, accuracy better 0.5% | |||
| Protection | Overcurrent, overvoltage, overtemperature | |||
| Dimensions (WxHxD) | 600x2100x600mm | 1000x2100x600mm | 1200x2100x800mm | 1200x2100x800mm |
| Weight | 450kg | 630kg | 750kg | 870kg |
Applications
Industrial Production Test
Provides stable and reproducible AC power for routine production testing.
The adjustable output parameters support efficient quality assurance processes.
Research & Development
Supports the evaluation and validation of products under different electrical conditions.
Variable voltage and frequency settings enable flexible test scenarios during development.
Burn-In & Heat Run Tests
Delivers continuous power for long-term endurance and thermal testing.
Stable operation helps verify product performance under sustained load conditions.

