28.5V DC Power SupplyUtilizing PWM voltage control mode and IPM high-frequency full-bridge conversion technology, it boasts strong overcurrent capability and low output ripple.
Compact, lightweight, low noise, and easy to operate.
Provide the required AC and DC power to the aircraft before, after flights, during scheduled inspections, and troubleshooting.
Performance Features:
Utilizing high-frequency PWM and IPM full-bridge conversion technology, efficiency up to 85%
Excellent output stability: Source voltage effect ≤0.5%, Load effect ≤0.5%
3. Output ripple less than ≤1%
4. Comprehensive protective features ensure the normal operation of power equipment and the safety of loads.
5. 10-tap voltage adjustable potentiometer, adjustable voltage range of 18V to 32V
6. 10-tap current adjustment potentiometer, capable of limiting the output current value between 30% and 105% of the rated value during short circuit and overload conditions.
7. Current Output Range: 100A to 2000A
8. LED voltage and current digital display, easy start/stop operation
Applicable Occasions:
Aircraft and airborne equipment startup and testing
Manufacturing, testing, and maintenance of aviation electronics such as radar and navigation equipment, as well as on-site repair and maintenance services
Aircraft Simulation Testing
Aviation, aerospace, vehicle, shipyard, and other specialized applications requiring DC testing and power supply for any situation that demands the use of direct current power.
Standard of Execution:
GJB 181A-2003 Air Supply Characteristics
GJB 572-88 "Characteristics and General Requirements for Aircraft Ground Power Supply"
MH/T 6018-1999 "Ground Static Power"
28V Aviation DC Power Supply Technical Appendix:
| Model | RAD28-______ |
| Output Current | Rated 50A-3500A (customizable to customer requirements) for 24/7 unattended long-term operation |
| Peak Current | Customized to customer specifications |
| Circuit topology structure | SPWM/IGBT Full-Bridge Circuit |
| Dynamic Characteristics | Overshoot and recovery time meet the requirements of GJB572 regulations. |
| Input Method | 220V±15%/380V±15% 50HZ±5HZ |
| Output Voltage | 28V DC (Adjustable Range: 0-32V) |
| Load regulation | ±0.5%FS |
| Waveshape Voltage | ≤1% |
| Power Voltage Stability Rate | ±0.5%FS |
| Power regulation ratio | ±0.5%FS |
| Load Adjustment Rate | ±1%FS |
| Display Control Method | LCD touch screen display, with both remote and local control options |
| Voltage Display Accuracy | ±1%FS |
| Current Display Accuracy | ±2%FS |
| Protection Method | Phase Loss, Overvoltage, Undervoltage, and Reverse Flow Protection Overvoltage, undervoltage, short circuit, current limiting, inverter overcurrent, internal overheating |
| Average Repair Time | ＜20 minutes |
| Overall Efficiency | 90% |
| Inbound and outbound line methods | Power side in/out cables |
| Noise | ≤65db at 1 meter from the cabinet |
| Insulation resistance and voltage resistance | 20 Megohm 1800V/AC 1M1N |
| Cooling air intake and exhaust method | Forced air cooling with exhausts from the front and sides, and intake from the back |
| Application Environment | Temperature -25-65℃; Humidity 0-90% non-condensing; Corrosion and acid-base resistance treatment |
Note: This power supply has been treated with appropriate electromagnetic compatibility measures, as well as moisture, smoke, and damp prevention treatments.
