Variable Power Supplies are suitable to use in different applications such as Laboratory, Test & Service that requires wide range of adjustment range for AC or DC voltages
Galvanic isolation is provided with transformer in both AC and DC power supply systems.
Rectifier section is thyristor controlled and inverter section is IGBT controlled which is the common use in PMI power supply systems.
PMI Adjustable Power Supplies are industrial type, reliable and easy to service.
VARIABLE DC POWER SUPPLY
VARIABLE AC POWER SUPPLY
| GENERAL | |
|---|---|
| Topology | Double Conversion Online System with Output Isolation Transformer |
| Control | Microprocessor Controlled System |
| INPUT | |
|---|---|
| Nominal Input Voltage | 380VAC/400VAC ±15% (3 Phase) |
| Nominal Input Frequency | 50 / 60 hz. ±5% |
| Protections | Thermic – Magnetic, Over Current, Over Voltage |
| DC BUS | |
|---|---|
| Nominal Voltage | 360 / 384 VDC |
| Float Voltage | 410 / 435 VDC |
| DC Ripple | ‹1% |
| OUTPUT | |
|---|---|
| Output Voltage Range | 70-300 VAC (1 Phase) / 120 – 520 VAC (3 Phase) Adjustable |
| Output Voltage Adjustment Steps | 1VAC Steps |
| Voltage Tolerance | IP20 / RAL7035 as standard, (Higher IP rating and different colors are available, please consult) |
| static | ± 1% |
| dynamic with 100% load change | ± 10% in 100 msec. |
| Output Frequency Range | 45-65 Hz |
| Output Frequency Tolerance | ± 0.1% |
| Output Waveform | Pure Sinusoidal |
| Protection | Short Circuit Protection, Over Voltage Protection, Under Voltage Protection, Over Current Protection and Over Temperature Protection |
| DIGITAL LCD SCREEN | |
|---|---|
| Display & Buttons | 2 x 16 LCD Display, Menu Selection and Parameter Setting Buttons |
| Indicatiors | Input MCB, Operating Mode, DC Voltage Low/High, Overload, High Temperature |
| Measurements | Output Voltage, Load Percentage, DC Bus, Event Codes |
| Set Menu | Output Voltage / Output Current / DC Bus / Date / Hour / Alarm Sound / Communication Address |
| Communication (Optional) | Modbus, TCP/IP, Profibus Communications via RS485 port. Available on request. |
| SAFETY & ENVIRONMENT | |
|---|---|
| Over Voltage Protection | IEEE 587 4500 A, 110 Joules |
| Electrical Interference Reduction | FCC Part 15 Class B |
| Electrical Standards | EN 50091-1 (Security) / EN 50091-2 (EMC) |
| Protection Level / Color | IP20 / RAL7035 (Higher IP Protection is available as option) |
| MTBF | 100,000 hrs. (w/out battery group) |
| Enclosure Material | Mild Steel, Zinc-phosphate coated; 100 µm electrostatic paint; 1.5 mm thickness |
| Cooling | Forced fans |
| Cable Entry | Bottom |
| Operating Temperature | -10 / +40 °C |
| Relative humidity | 0 – 90%. Higher relative humidity are available, please consult |
| Operating Altitude | Max. 2000 Mt. |
| Noise Level | Max. 60 db |
| GENERAL | |
|---|---|
| Topology | Full Bridge Phase Angle Controlled Thyristor Module Rectifier |
| Control | Microprocessor Controlled System |
| INPUT | |
|---|---|
| Input Isolation Transformer | Galvanically isolated / Primary & Secondary Earth Screened |
| Nominal Voltage and Tolerance | 380/400 VAC ±15% (3 Phase) |
| Nominal Frequency | 50 Hz / 60Hz ±5% |
| Input Protection | Input: Thermic-Magnetic Over Current Protection, Over Voltage Protection, Phase Sequence Free Operation (3 Phase), Soft Start |
| OUTPUT | |
|---|---|
| Rated Current | 1A – 400A |
| Nominal Output Voltage | 1VDC – 900VDC |
| Static Tolerance | ±1% |
| Dynamic Response | ±10%, 5 ms |
| DISPLAY PANEL & MEASUREMENT | |
|---|---|
| Measurements | LCD Display for Line Voltage / Frequency, Output Voltage / Current |
| Indicators | Current Mode, Line Failure, Fan Failure, Over Voltage, Under Voltage, Over Temperature, Rectifier Failure, Mains Available |
| Adjustable Parameters | Rectifier Output Current / Voltage |
| Event History | Events recorded and displayed on front panel and on PC via remote communication |
| Sound Alarm | On Warning Messages 2 Short ‘beep’ per 2 seconds |
| SAFETY & ENVIRONMENT | |
|---|---|
| Circuit Breakers | Input: Miniatur circuit breakers; Output: Miniatur circuit breakers / NH Fuse |
| Over Voltage Protection | IEEE 587 4500 A, 110 Joules (standard) |
| Electrical Interference Reduction | FCC Part 15 Class B |
| Electrical Standards | EN 50091-1 (Security) / EN 50091-2 (EMC) |
| Protection Level / Color | IP 20 / RAL 7035 (Standard |
| Isolation Voltage | 2000VAC input/chassis and output/chassis |
| MTBF | 100,000 hrs. (w/out battery group) |
| Enclosure Material | Mild Steel, Zinc-phosphate coated; 100 µm electrostatic paint; 1.5 mm thickness |
| Cooling | Forced fans |
| Cable Entry | Bottom |
| Operating Temperature | -10 / +40 °C. Higher operating temperatures are available, please consult |
| Relative humidity | 0 – 90%. Higher relative humidity are available, please consult |
| Operating Altitude | Max. 1000 Mt. (Higher altitudes requires de-rating, please consult ) |
| Noise Level | Max. 65 db |