115V 400Hz & 28VDC Combi Ground Power Unit
2.Technology: Hybrid frequency conversion system (diesel generator + solid-state inverter, aviation-grade design)
3.Input: Diesel engine driven / optional 380-480V three-phase 50/60Hz auxiliary input
4.Key features: Touchscreen control, manual/remote operation, AC & DC integrated output, full protection system (overload, short circuit, reverse current, over-temperature)
5.Applications: Airport MRO operations, hangar maintenance, aircraft line maintenance, remote stands, military & cargo aviation support
6.Compliance: MIL-STD-704F, ISO6858, aviation ground power standards
7.Brand: ACSOON (1-year warranty, built in Xi’an).
- Product Description
⚡ ACSOON 115V 400Hz and 28VDC Combi Ground Power Unit Hybrid Frequency Converter

115V 400Hz and 28VDC Combi Ground Power Unit
– Reliable Power, Simplified
Trouble:
Modern airports and MRO facilities face increasing pressure to improve turnaround efficiency while reducing operational costs.
However, many aircraft still rely on APUs or unstable ground power sources during:
Aircraft maintenance
Avionics testing
Pre-flight inspections
Hangar operations
This leads to:
High fuel consumption
Excessive APU wear and maintenance cost
Unstable power supply during sensitive testing
Increased operational downtime
Solution:
The ACSOON Hybrid Frequency Converter / Aircraft Ground Power Unit provides a stable and reliable 115V/200V 400Hz power supply, specifically designed for aviation ground operations.
It eliminates the need for continuous APU operation and ensures consistent power during all maintenance procedures.
Result:
✔ Lower operating cost
✔ Improved maintenance efficiency
✔ Stable aircraft-grade power output
✔ Reduced APU dependency
✔ Safer ground operations
Aircraft Ground Power Unit for Airport & MRO Operations
The ACSOON Aircraft Ground Power Unit (GPU) is a high-reliability 400Hz aviation power solution designed for aircraft maintenance, airport ground support, and MRO operations.
It provides stable 115V/200V three-phase aircraft power, ensuring safe and continuous energy supply during maintenance, testing, and ground handling operations.
Reliable Ground Power for Modern Aircraft Maintenance
Aircraft maintenance operations require stable and continuous electrical power. However, relying on onboard APUs leads to:
- High fuel consumption
- Increased maintenance cost
- Excessive engine wear
- Noise and emission issues
The ACSOON GPU system replaces APU dependency by delivering stable ground-based aircraft power for all maintenance scenarios.


DC 28V AC 115V/400HZ Power Supply Key Technical Advantages
- 115V / 200V three-phase 400Hz output
- Hybrid diesel + inverter power system
- Industrial-grade aviation power stability
- Full electrical protection system
- Overload protection
- Short circuit protection
- Reverse current protection
- Over-temperature protection
- Touchscreen + manual control interface
- Remote monitoring & operation support
- Mobile trailer design for airport flexibility
Why Choose ACSOON DC 28V AC 115V/400HZ Power Supply GPU?
Compared with traditional ground power systems, ACSOON provides:
✔ Lower operating cost by reducing APU usage
✔ Stable aviation-grade power output
✔ High system reliability in continuous operation
✔ Strong adaptability for different aircraft types
✔ Designed for harsh airport environments
✔ Easy maintenance and long service life


Utility 400Hz GPU Application Areas
The ACSOON Aircraft Ground Power Unit is widely used in:
- Airport MRO maintenance hangars
- Aircraft line maintenance operations
- Aviation system testing & diagnostics
- Cargo ramp ground support operations
- Military aviation support systems
- Aircraft delivery & acceptance testing
- Remote parking stands
For technical specifications or global solutions for the DC 28V AC 115V/400HZ Power Supply GPU: acpower@acsoonpower.com,

ABOUT US
·28,698+ long-term repeat clients globally with stable repeat orders
·19+ years domestic & export manufacturing experience for aviation ground power equipment
·7,000+ sq.m modern production factory
·24/7 customer service:<30 mins quick response + lifetime after-sales support
·60+ independent patented technologies
·Certified as China National High-Tech Enterprise
·Multiple provincial awards, including Shaanxi AAAAA-Level Credibility Enterprise certification
Long standing
Customer
over 19 years
experience
Factory Area
7/24H
High Quality
Efficiency Service
Datasheet
| Item | Specification |
|---|---|
| Output Voltage | 115V / 200V AC |
| Output Frequency | 400Hz ±0.5Hz |
| Phase | Three-phase |
| Power Capacity | 120kVA continuous (customizable) |
| Technology | Hybrid frequency conversion system |
| Input Power | Diesel engine / 380–480V AC optional |
| Control System | Touchscreen + manual + remote control |
| Protection | Overload / short circuit / reverse current / over-temp |
| Cooling System | Forced air cooling system |
| Mobility | Trailer-mounted / fixed installation optional |
| Standards | MIL-STD-704F, ISO 6858 |
| Brand | ACSOON |
| Warranty | 12 months |
Our Services

Quality Control
Every unit burned in – 2 hours at 60kVA, then 90kVA for 60 seconds. Same as our premium units.
Analog meter checked – Against a calibrated DMM. Must read within 2%.
Contactor cycle test – 500 on/off cycles. No welding or sticking.
Final human test – Someone runs it through a start sequence. Signs off on a paper checklist.
R&D Results
Customer request – A small airport asked for a cheaper GPU without "the computer stuff". We built this.
Display choice – Digital displays fail. Analog meters rarely do. Simple choice.
Fault lights – Used red/yellow/green LEDs. Red = fault, yellow = warning, green = run. Anyone understands it.
Knob placement – Put the voltage trim on the left, start button on the right. Muscle memory works.


Packaging and Transportation
Shipped from Xi'an – Standard wooden crate. Bolted to a skid.
Included – Input pigtail (3m), output cable (15m) with NATO plug, printed quick guide.
Manual – One sheet of paper. Double‑sided. That's it.
No USB – You don't need one.
After‑Sales Service
1‑year warranty – Covers everything. Return to Xi'an.
Spare parts (contactor, fan, voltmeter) kept in Xi'an.
Email support – We'll help. But you probably won't need it.


Qualification Certification
CE – LVD and EMC.
ISO 9001:2015 – Our Xi'an facility.
MIL‑STD‑704F – Output tested. Report on request.
Designed for Aviation Ground Support Excellence
The ACSOON GPU system is engineered for continuous airport operations where reliability is critical.For technical specifications or global solutions for the DC 28V AC 115V/400HZ Power Supply GPU: acpower@acsoonpower.com.
From aircraft maintenance hangars to remote ramp operations, it ensures consistent power delivery and operational safety for all ground support activities.
FAQ
Q1: Can I add remote monitoring later?
A: No. This model has no comms port. If you need remote monitoring, buy our standard GPU400 series.
Q2: How do I know if it's overloaded?
A: The output contactor will trip. The red fault light will come on. Turn it off, reduce the load, restart.
Q3: Is this unit quieter than your standard model?
A: Same fans, same noise. About 65 dB at 1m. Not silent, not a jet engine.
Q4: Can I get a 90kVA version?
A: Yes, GPU400‑330090‑U. Same simple design, just more power.
Q5: Lead time from Xi'an?
A: 3‑4 weeks. We build these alongside our standard units.
Q6:How can I get more details?
A:Click here.Send inquiry get price and specification.
Contact Us
For technical specifications or global solutions for the DC 28V AC 115V/400HZ Power Supply GPU: acpower@acsoonpower.com, or submit your requirements using the form at the bottom of our website.












