28V Power Supply Vehicle

The DC 28.5V aviation ground power unit employs soft-switching and PWM-controlled full-bridge conversion technology, utilizing inverter technology to convert 50Hz industrial frequency power into aviation 28V DC power. It is used for starting military vehicles and aircraft, as well as for power-on checks of onboard equipment. The product adopts PWM inverter technology and an intelligent control system, utilizing reliable industrial-standard components and strictly following the GJB9001B quality system for production, ensuring high performance indicators and reliability. It can be provided as self-generating or utility-powered models according to user requirements. It features fast dynamic response, strong overcurrent capability, and low output ripple. Advantages include compact size, light weight, low noise, high efficiency, and simple operation. The 28V aviation ground power unit supplies power directly to aircraft via cables from the apron (or hangar), meeting the electrical requirements for aircraft inspection and maintenance. It is widely used in aerospace, ground radar stations, ships, submarines, computer stations, military precision instruments, and imported equipment power systems.

1. Utilizes high-frequency PWM and soft-switching full-bridge conversion technology with efficiency exceeding 90%.

2. Excellent output stability: line regulation ≤0.5%, load regulation ≤0.5%.

3. Ultra-low temperature component design (-40°C to +50°C) suitable for all harsh field environments and vehicle-mounted high/low temperature applications.

4. Comprehensive protection functions ensure normal operation of the power equipment and load safety.

5. 10-turn voltage adjustment potentiometer allows voltage regulation from 18V to 32V (output voltage can be customized).

6. 10-turn current adjustment potentiometer enables output current limitation from 30% to 105% of rated value under short-circuit and overload conditions.

7. Current output range: 100A to 3000A (current range can be customized).

8. LED digital display for voltage and current, with convenient start/stop operation.