3kW series DC power supply
1. 3kW series introduction 3kW series DC power supply adopts international advanced soft switch inverter technology, with new IGBT power components and amorphous core as the core device is developed, and the power supply adopts digital control technology, the power source has high accuracy, high stability, high reliability, good electrical properties, suitable for scientific research units, laboratories, industries, etc. The power supply has the perfect protection function.
3kW series DC power supply has 3 types as shown in the figures below. We also accept customization.
3kW type A |  3kW type B |  3kW type C |
2. Application
Our power supply rectifier is aplied to:
Electrochemistry: Plating, anodizing, electro polishing, electrolysis, electro winning, electro refining, electronic cleaning, tinning, pickling, surface coloring, cathod protection
Heating: Inductive heating, DC heating, single phase AC heating
Water treatment: Waste water treatment, seawater desalination
3. Technical principle
The main circuit mainly includes: Input three-phase uncontrolled rectifier module, high-frequency inverter, high-frequency transformer and output full-wave rectifier module. The control system takes DSP controller as the core, including isolated driver, output current, sampling , output feedback, input overvoltage, protections, overheat protection, HMI interface, CAN communication, etc.
4. 3kW series technical data
1. AC Input | ||
1.1 | Input AC phase | 3 phase 4 line(A,B,C,N); |
1.2 | Input line voltage(V) | 220V+/-10%, 380V+/-10%, 415V+/-10%, 440V+/-10% |
1.3 | Input Frequency(Hz) | 50Hz / 60Hz |
2. DC Output | ||
2.1 | Output power | 0～3kW |
2.2 | Output mode and range | 0-250A Constant Current, 0-100% of rated value |
0-30V Constant Voltage, 0-100% of rated value | ||
2.3 | Duty | 100% full load |
2.4 | Accuracy | <1% |
3. Electrical Features | ||
3.1 | Regulation mode | IGBT PWM |
3.2 | Power Factor(Full load) | ≥0.93 |
3.3 | Cooling Method | air cooling |
3.4 | Remote control | (1) RS485; (2) 4-20mA; (3) remote control box( 2 optional：HMI or meters) |
3.5 | IP degree | IP30 |
3.6 | Insulation Grade | B, please specify if you require higher |
3.7 | Working Mode | Continuous |
3.8 | Alarm type | Audible and visual alarm |
5. Functions
*Module structure support direct parallel, current expanding
*Touch panel for display, operation
*Profibus, Profinet, Modbus, 4-20mA, 0-10V for remote control
*Fault auto diagnose and alarm
*Timer setting, auto OFF
*Process Step Setting, auto running
*Soft Start & Stop, time setting
*Save last time output setting,such as keeping 12V while starting
*Cabinet seal for water cooling version, avoid corrosion
6. Quality control
We always follow ISO9001 quality management system to do the quality control, and provide qualified Power Supplies and Power Quality products to worldwide customers. Follow below quality control process.
(1) PCB board reliability testing
(2) Full load testing
7. Certification
Stong technology ability , we have More than 20 years power electronics R&D and engineering experiencecs, high-tech company, with patents, software copyrights.
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