Towable 28V aviation power supplyThe charger is primarily used during pre-flight, post-flight, scheduled inspections, and troubleshooting work, providing the required AC and DC power to the aircraft, as well as the hangar engine oil seal starting power. The 28.5V DC stabilized power supply is a replacement product for silicon-controlled rectifier (SCR) power supplies. The 27V DC power supply is a 28.5V DC stabilized power supply designed and manufactured using high-frequency power electronic switching technology, specifically for aviation and military electronic equipment. It can be used as a test power supply for various aircraft and on-board equipment, radar, navigation, etc. The 27V DC stabilized power supply is suitable for the starting and ground instrument maintenance of business jets, government aircraft, helicopters, drones, and trainer aircraft.Tractor-Type 28V Aviation Power SupplySupplying direct current 14V, 27V, and 28V main power sources for airports.
Towed 28V Aviation Power SupplyOutput current: 50A-2500A, customizable to customer requirements; Voltage: 28.5V (adjustable from 15-32V, set according to aircraft protection voltage) / 270V (adjustable from 0-300V); DC voltage adjustment range (10-40V and 40-300V) is continuously adjustable. Input power supply methods: single-phase 220V or three-phase 380V. Output ripple coefficient: 0.1%-0.4%, load voltage stability: less than 0.1%, power voltage stability: less than 0.1%.
The aircraft engine oil seal power supply uses inverter technology to convert 50Hz AC power into a stable 28.5V DC power supply, for the purpose of starting civil and military aircraft, as well as for power-on checks of onboard equipment.
Towed 28V aviation power supplyUtilizing high-frequency power electronic switching technology and multi-level waveform closed-loop control, the product offers rapid dynamic response and low output ripple. It incorporates advanced SPWM inverter technology and an intelligent control system, selecting highly reliable industrial-grade components. The first-class production process ensures superior performance specifications and high reliability. It boasts compact size, light weight, low noise, high efficiency, and simple operation.
Engine oil seals can be provided in both fixed and portable models as per customer requirements.
Towed 28V aviation power sourceUtilizing the Air France high-speed chopping scheme, no large capacity inductors or capacitors are required for filtering.
Towed 28V aviation power supply根本解决 voltage overshoot and voltage imbalance issues.
High stability and long service life.
2. Remote drop compensation for output leads, ensuring terminal voltage accuracy under high current conditions.
3. Closed-loop response time of 1 second, featuring an isolated transformer structure to ensure electrical safety.
4. The output stage employs a non-high-frequency rectification scheme, avoiding the uncontrolled current effect that high-frequency rectification devices may exhibit, ensuring the system's safety under high current operating conditions.
5. Equipped with a high-definition LED digital display, voltage resolution of 0.01V, and current resolution of 0.1A.
6. Operating Temperature: -40℃ to 65℃.
7. Utilizes high-frequency PWM and full-bridge conversion technology, ensuring high overall efficiency.
8. High power density design, main models accommodate standard cabinets for versatile use in various environments, capable of parallel operation with currents up to 5000A.
9. LCD display, intuitive operation, easy to use.
Supports RS232 (standard), RS485 (optional), GPIB (optional) communication interfaces;
Comprehensive protection features: input phase loss protection, input over/under voltage protection, output short-circuit protection, output overvoltage protection, output overcurrent protection or current limiting protection, internal overheat protection.
Application: The DC28.5V ground power supply is widely used in aerospace, ground radar stations, ships, submarines, computer stations, precision instruments and equipment, and imported equipment power supplies.
Operating Modes: Features both constant voltage and constant current operating modes.
Towed 28V aviation power supplyExecution Standards
The RAD series DC power supplies are manufactured in accordance with the following standards:
GJB 181A—2003 Aircraft Power Supply Characteristics
MH/T 6018-1999 Ground Static Power Supply
GJB 2677-96 Performance Testing Method for Radar Power Distribution Subsystem Direct Current Power Supply, Single-Phase AC Power Supply
GJB 150-86 Environmental Test Methods for Junyong Equipment
GJB 151A—97 Requirements for Electromagnetic Emissions and Susceptibility of Equipment and Sub-systems
GJB 152A—97 Junyong Equipment and Subsystem Electromagnetic Emission and Sensitivity Measurement
