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SMF series medium frequency static variable power supply
Three-phase input three-phase output series
SMF series 400Hz intermediate frequency static variable power supply adopts digital frequency division, phase locking, waveform instantaneous value feedback, SPWM pulse width modulation, IGBT output and other new technologies and intelligent control, with complete functions and superior performance. Its main features are stable output voltage, small waveform distortion, strong load adaptability, fast and accurate testing, low harmonic distortion, high frequency and voltage stabilization rate stability, and can provide pure and reliable 400Hz sine wave power output.
1. Modular design - the volume is only 1/4 of the traditional motor intermediate frequency generator set, saving handling and installation costs;
2. Generate high-quality intermediate frequency AC output power - powerful direct digital synthesis (DDS) sine wave generation, pure sine wave output;
3. Excellent stability - the output load voltage regulation rate is less than or equal to ±1%, and the output frequency is less than or equal to 0.01% (the output frequency is generated by quartz oscillation, so it has a very stable and accurate frequency);
4. Fast response speed - for 100% loading/unloading, the output load can be stabilized within the range of ±1% within 2ms;
5. Multiple protection functions - with over-voltage, over-current, over-temperature, IGBT drive proprietary technology, output short-circuit guarantees to ensure no damage due to load short-circuit and alarm devices;
6. Strong overload capacity - allows 100% full load long-time delay use, the instantaneous current can withstand 3 times the rated current, and will not cause voltage drop, all kinds of loads can be used;
7. Good man-machine interface - digital display of voltage, frequency, current, power/PF measurement, the accuracy can reach 0.5 level, the source and meter are integrated, and the operation is simple.
8. Three-phase independent - can withstand three-phase unbalanced loads, and the output end has an isolation transformer, which can endure the back EMF at the load end.
technical parameter | |
model | SPFC33-150K |
capacity | 150KVA |
circuit mode | IGBT/PWM pulse width modulation method |
AC input | |
Input | Three-phase four-wire system |
Input voltage | 380V±15% |
input frequency | 50Hz/60Hz±15% |
AC output | |
output method | Three-phase three-wire or three-phase four-wire (optional, specify when ordering) |
output waveform | pure sine wave |
The output voltage | Phase voltage: 0-300V Line voltage: 0-520V |
Voltage accuracy | ±1% |
Output frequency | 45Hz-65Hz |
Frequency accuracy | ±0.01% |
Three-phase unbalance | Phase 120°±2°; Phase difference <3% of rated value |
Dynamic Voltage Transients | 2% (0~100% load variation) |
Voltage distortion rate (degree of distortion) | THD<3% (non-linear load) |
Display method | |
display window | High-precision LCD touch screen display |
Voltage display | Accuracy 0.1V |
Current display | Accuracy 0.1A |
Frequency display | Accuracy 0.1Hz |
system | |
system efficiency | Normal Mode: 90% |
Insulation resistance | DC> 500V 20MΩ |
Dielectric strength | (input and output to ground) 1800Vdc, leakage current is less than 3.5mA, no arcing in 1 minute |
Protection class | IP22 |
Wiring | Input and output terminals, terminal blocks |
Cooling method | Transformer forced fan cooling |
Operating temperature | -10℃~+50℃ |
Relative humidity | 0-90% (no condensation) |
Noise (dB) | <65dB |
protective device | There are perfect overvoltage, overcurrent, short circuit, overheating and other protection functions and alarm devices |