28VDC Ground Power Unit for Aircraft
1.Power Range: 300A to 2000A DC Output
2.Technology: High-Frequency Switching Mode Rectifier with Power Factor Correction (PFC)
3.Input: 3-Phase, 208V-480V, 50/60Hz Mains Supply
4.Output: 28.5VDC, Adjustable 20-32VDC, Low Ripple
5.Key Applications: Military Aircraft, General Aviation, Avionics Testing, Battery Charging/Starting
6.Core Features: High Efficiency (≥93%), MIL-STD-704F Compliant, Compact & Robust Design
7.Brand: ACSOON (OEM/ODM Supported).
2.Technology: High-Frequency Switching Mode Rectifier with Power Factor Correction (PFC)
3.Input: 3-Phase, 208V-480V, 50/60Hz Mains Supply
4.Output: 28.5VDC, Adjustable 20-32VDC, Low Ripple
5.Key Applications: Military Aircraft, General Aviation, Avionics Testing, Battery Charging/Starting
6.Core Features: High Efficiency (≥93%), MIL-STD-704F Compliant, Compact & Robust Design
7.Brand: ACSOON (OEM/ODM Supported).
- Product Description
XI'AN JERRYSTAR INSTRUMENT CO., LTD manufactures the reliable 28VDC Ground Power Unit for Aircraft, a dedicated DC power source designed to meet the stringent demands of military and civilian aviation. This solid-state rectifier delivers clean, stable, and high-current 28VDC power essential for aircraft engine starting, avionics operation, battery servicing, and ground support operations, ensuring safety and efficiency on the apron and in hangars.
Datasheet
| Parameter | Specification |
|---|---|
| Model Series | ACSOON ADCW Series |
| Input | Voltage: 3-Phase 208V, 380V, 400V, 415V, 440V, 480V ±15% Frequency: 50Hz / 60Hz Power Factor: ≥0.9 |
| Output | Voltage: 28.5VDC (20-32VDC adjustable) Current: 300A, 400A, 500A, 600A, 800A, 1000A, 2000A Regulation: ±0.5% FS (Line & Load) |
| Ripple | ≤ 0.15V RMS |
| Efficiency | ≥93% |
| Overload Capacity | 125% for 10 min, 150% for 60s, 200% for 30s |
| Display | VFD Digital (V, I, P, Status, Faults) |
| Protections | Over Voltage/Current, Short Circuit, Over Temperature, Phase Loss |
| Cooling | Forced Air |
| IP Rating | IP54 (Standard) |
| Operating Temp. | -20°C to 50°C |
| Standards | MIL-STD-704F, GJB572A, GJB181A, ISO6858 |
28VDC Ground Power Unit for Aircraft Main Features
- Precise Voltage Control: Output adjustable from 20-32VDC with excellent line/load regulation (±0.5%).
- Ultra-Low Output Ripple: Ripple voltage typically ≤0.15V, protecting sensitive avionic equipment.
- Intelligent Control & Display: VFD display shows voltage, current, power, and fault codes; supports remote monitoring via RS485.
- Comprehensive Protection: Features overload, short-circuit, over-temperature, and input under/over voltage protection with alarms.
Why Choose ACSOON 28VDC Ground Power Unit for Aircraft?
- Military-Grade Reliability: Engineered to meet MIL-STD-704F and other stringent defense standards for consistent performance in critical operations.
- High Efficiency & Power Quality: ≥93% efficiency reduces operating costs, while active PFC ensures minimal grid disturbance.
- Exceptional Current Output: Delivers high, stable current (up to 2000A) necessary for engine start and heavy-load scenarios.
- Robust & Service-Friendly: Durable IP54 enclosure protects against harsh environments; modular design simplifies maintenance.
28VDC Ground Power Unit for Aircraft Application Areas
- Military Aircraft Support: Powering transport, fighter, and reconnaissance aircraft that primarily use 28VDC systems.
- General Aviation: Providing ground power for smaller aircraft, helicopters, and business jets during maintenance and pre-flight.
- Aircraft Battery Maintenance: Serving as a high-current charger and conditioner for aircraft battery carts and systems.
- Hangar & Workshop Power: A reliable DC source for testing and powering aircraft subsystems and components off-aircraft.
Our Services
01
Quality Control
- Component Stress Testing: All switching semiconductors and transformers undergo rigorous pre-assembly testing under simulated load conditions.
- Full-Load Thermal Cycling: Each unit is subjected to multiple thermal cycles at 100% and overload ratings to validate thermal design and component reliability.
- Ripple & Noise Measurement: Specialized equipment verifies that output ripple is within the strict limits required by avionics standards.
- Functional Safety Validation: All digital control logic, protection circuits, and alarm functions are tested to ensure fail-safe operation.
02
R&D Results
- Advanced PFC Topology: Implemented a high-efficiency, low-harmonic input stage to exceed power factor requirements and reduce input current distortion.
- Dynamic Load Response Optimization: Tuned the control system to provide stable voltage even under the extreme transient loads of engine starting.
- Enhanced Environmental Sealing: Developed improved gasket and ingress protection methods for the IP54 enclosure to withstand dust, moisture, and jet blast.
- Unified Communication Protocol: Integrated a robust communication stack supporting both Modbus and proprietary protocols for flexibility in integration with various ground support equipment (GSE) networks.
03
Packaging and Transportation
- Shock-Absorbent Mounting: The internal power module is mounted on vibration-dampening isolators within the sturdy external cabinet for transport.
- Climate-Controlled Storage Advisory: Packaging includes clear indicators for storage temperature and humidity to preserve integrity during long shipping periods.
- Turn-Key Logistics: We provide door-to-door shipping solutions, handling all customs formalities and providing real-time shipment tracking.
- Site Readiness Guide: Included documentation provides clear requirements for site preparation (foundation, cable entry points) to expedite installation.
04
After‑Sales Service
We offer a 24-month warranty, global access to critical spare parts, 24/7 remote diagnostic support, and the availability of on-site service contracts for fleet operators.
Qualification Certification
Military Standards Compliance: Designed and tested to meet key sections of MIL-STD-704F for DC power characteristics;Industry Certifications: CE Marked for the European market; manufactured in an ISO 9001:2015 certified facility;Validation Testing: Each unit ships with a detailed performance test report, certifying its output parameters and compliance.
FAQ |
|---|
| Q1: What types of aircraft primarily use a 28VDC Ground Power Unit? |
| A: It is essential for most military aircraft and many older or smaller civilian aircraft (e.g., general aviation, helicopters, regional turboprops) whose electrical systems are based on 28VDC. |
| Q2: Can this unit be used for jump-starting an aircraft with a completely dead battery? |
| A: Yes, its high current output (especially models rated 600A and above) and robust design are suitable for providing the surge current needed to assist in engine starting, though specific procedures must be followed. |
| Q3: How does it differ from a standard industrial DC power supply? |
| A: It is built to much more rugged mechanical and electrical standards (e.g., vibration, temperature, ingress protection) and complies with specific aviation voltage and ripple standards that industrial supplies do not meet. |
| Q4: Is remote operation and monitoring possible? |
| A: Yes. Equipped with RS485 communication, it can be integrated into a centralized GSE monitoring system for remote start/stop, parameter setting, and real-time health status monitoring. |
| Q5: What are the installation requirements? |
| A: It requires a suitable 3-phase AC power source, a level and stable concrete pad or indoor space, and connection to aircraft via approved high-current DC cables and connectors. Detailed site plans are provided. |
Contact Us
For technical specifications or global solutions for the 28VDC Ground Power Unit for Aircraft: acpower@acsoonpower.com, or submit your requirements using the form at the bottom of our website.
