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GPU400-330090 90kVA 400Hz Ground Power Unit for Aircraft
2.Output: 115V/200V, 400Hz, 3-phase, 90kVA
3.Input: 208-480V, 50/60Hz, 3-phase
4.Power Quality: Pure sine wave, THD <2%
5.Features: Auto voltage compensation, fault diagnosis, event memory
6.Protection: Overload, overcurrent, overheat and short circuit
7.Application: Aircraft maintenance, MRO, hangar, apron and PIT systems
8.Standards: ISO 6858, MIL-STD-704F, EN61000
9.Brand: ACSOON, OEM/ODM customization supported
- Product Description
90kVA 400Hz Ground Power Unit for Aircraft
Stable 115V/200V 400Hz AC power for aircraft maintenance, ground operation and testing.
The ACSOON 90kVA 400Hz Ground Power Unit converts standard 50Hz/60Hz mains power into stable three-phase 115V/200V 400Hz aircraft power.
Designed for hangars, MRO facilities, airport aprons, PIT systems and aircraft production or testing, it provides a clean sine-wave output with automatic voltage compensation and complete electrical protection.
90kVA | 115V/200V | 400Hz | 3-Phase | THD <2% | IP54
Not sure about the configuration? Send us your aircraft type, input power and required cable length.
[Get a Technical Recommendation]
What Problem Does This 90kVA 400Hz GPU Solve?
Aircraft electrical systems cannot simply be connected to ordinary 50Hz or 60Hz utility power when they require a 400Hz AC supply.
The ACSOON 90kVA GPU provides a dedicated ground power source by converting available three-phase mains power into 115V/200V, 400Hz three-phase AC power.
It is designed for situations where technicians need reliable external aircraft power without relying on the aircraft engine or onboard power source.
Typical requirements include:
Aircraft maintenance — supply external 400Hz power during inspection, servicing and troubleshooting.
MRO and hangar work — provide stable power for aircraft electrical and avionics-related ground operations.
Airport apron operation — support aircraft while parked on the ground.
Aircraft production and testing — provide controlled 400Hz AC power during assembly, inspection and electrical testing.
PIT systems — integrate ground power into fixed airport infrastructure.
Where Can the 90kVA 400Hz GPU Be Used?
Aircraft MRO Facilities
Stable external 400Hz power for scheduled maintenance, inspection and troubleshooting.
Airport Hangars
A dedicated ground power source for aircraft parked inside maintenance facilities.
Airport Aprons
Support parked aircraft during ground servicing and technical operations.
PIT Ground Power Systems
Suitable for projects where 400Hz aircraft power is integrated into airport ground infrastructure.
Aircraft Manufacturing
Provide 400Hz AC power during aircraft assembly, electrical inspection and production testing.
Aviation R&D and Testing
Support professional aircraft-related electrical development and testing applications.
Technical Specifications
| Specification | 90kVA GPU |
|---|---|
| Rated Capacity | 90kVA |
| AC Output | 115V L-N / 200V L-L |
| Output Frequency | 400Hz |
| Output Phase | Three-phase, four-wire |
| Input Voltage | 208 / 380 / 400 / 415 / 440 / 480V |
| Input Frequency | 50Hz / 60Hz |
| Input Voltage Tolerance | ±15% |
| Frequency Stability | ±0.01% FS |
| Voltage Regulation | ±0.5% line / ±1% load |
| Output Waveform | Pure sine wave |
| VTHD | <2% |
| Efficiency | ≥93% |
| Protection | Overcurrent, overload, overheat, short circuit |
| Overload Capacity | 125% / 10min; 150% / 60s; 200% / 30s |
| Protection Class | IP54 |
| Operating Temperature | -20°C to +50°C |
| Humidity | 10–95% |
| MTBF | 50,000 hours |
| MTTR | <30 minutes |
Custom 90kVA GPU for Your Project
Different airports, aircraft and power grids do not always require the same configuration.
ACSOON can review project requirements before production and provide project-based customization.
| Customization | Available Options |
|---|---|
| Brand | ACSOON / OEM logo |
| Capacity | 30 / 45 / 60 / 90 / 120 / 180kVA |
| Input Voltage | Project-specific configuration |
| Output | 115V/200V, 400Hz |
| Cable Length | According to site requirement |
| Aircraft Connector | According to application |
| Cabinet Color | Custom color available |
| Label / Nameplate | OEM customization |
| Control | Project-specific options |
| Documentation | Technical documents and test materials |
If you need it,Contact us at Email: acpower@acsoonpower.com
How to Select the Right Aircraft GPU
Not every aircraft ground power project should be selected by kVA alone.
Before requesting a quotation, confirm:
Aircraft or load type
Required AC capacity
Available input voltage and frequency
Required output
Cable length
Aircraft connector
Installation environment
Operating conditions
Factory Testing Before Shipment
Every ACSOON 90kVA Ground Power Unit is inspected and tested before shipment according to the confirmed project configuration.
Depending on the order and agreed documentation scope, customers can receive supporting test materials for project review.
✓ Factory inspection photos
✓ Power-on test video
✓ Output voltage/frequency test
✓ Full-load test where applicable
✓ Packing photos/video
✓ Technical documentation
Packing & International Delivery
The 90kVA GPU is prepared for international transportation with export-oriented protective packing according to the agreed shipping method.
Before dispatch, the sales team can provide packing information and shipment documentation required for order coordination.
For overseas projects, please tell us the destination country or port when requesting a quotation so that the appropriate delivery option can be discussed.
Compliance & Standards
- The GPU400 Series is designed in accordance with international aviation and industrial standards:
- MIL-STD-704F
- ISO 6858
- GJB 572A-2006
- GJB 181A-2003
- EN 61000
Why Choose the ACSOON 90kVA Aircraft GPU?
Clean 400Hz Power
Pure sine-wave output with VTHD <2% helps provide stable AC power for professional aircraft ground applications.
Automatic Voltage Compensation
The GPU supports automatic voltage compensation to help maintain the required voltage at the aircraft connector, particularly where longer output cables introduce voltage drop.
Built for Continuous Professional Use
The 90kVA configuration is designed for aircraft ground power applications requiring a dedicated high-capacity 400Hz source.
Fault Diagnosis and Event Records
The digital system supports self-diagnostic fault indication and stores recent events, making daily operation and troubleshooting easier for maintenance personnel.
Multiple Electrical Protections
Protection functions include:
Overcurrent | Overload | Overtemperature | Short Circuit
Easy Maintenance
The cabinet layout is designed to provide access to internal components for inspection and maintenance.
About ACSOON
ACSOON is a professional manufacturer of industrial power conversion systems, including static frequency converters, aircraft ground power units, AC power supplies, and customized electrical testing systems.
With over 19 years of engineering experience, ACSOON equipment is widely used in aviation, industrial manufacturing, military support systems, and laboratory testing environments.
One-Year Warranty
ACSOON provides a one-year warranty for the 90kVA 400Hz Ground Power Unit according to the agreed sales terms.
Technical support can cover:
Installation guidance
Operation guidance
Troubleshooting support
Technical document support
Spare-parts coordination
Remote technical communication
For overseas customers, photos and videos can be used during remote troubleshooting to help our technical team identify the operating condition more efficiently.
All Weather GPU Main Features
Thermostatic heater – 500W, kicks in at 5°C. Keeps electronics at 10‑20°C internally.
Oversized fans with filter – Moves more air than standard unit. Filter catches sand.
Stainless steel hardware – All external fasteners and latches are stainless. No rust.
Drain valve – In case condensation builds up, open the valve at the bottom.
Why Choose ACSOON All Weather GPU?
Works anywhere – From -30°C to +55°C ambient. No derating, no shutdowns.
Sand and salt proof – IP56 rated. Dust‑tight, protected against powerful water jets.
No extra shelter needed – Just set it on the ramp. It's its own weatherproof box.
Same reliable power – 60kVA, 400Hz, THD under 2%. Same as our standard GPU.
All Weather GPU Application Areas
Arctic airfields – Heated enclosure. No pre‑heating required before use.
Desert military bases – Sandstorm? Close the door. Unit keeps running.
Offshore helidecks – Salt spray resistant. Sealed connectors and stainless hardware.
High mountain airports – Thin air, wide temperature swings. This unit handles both.
Quality Control
Cold chamber test – Every unit runs at -30°C for 2 hours. Heater must hold internal temp above 0°C.
Hot chamber test – 55°C for 4 hours at full load. No over‑temp alarms.
IP56 water test – High‑pressure spray from all directions for 10 minutes. No water inside.
Sand test – Blown sand against the intake for 30 minutes. Filter catches it.
R&D Results
Heater placement – First unit had heater near the top. Heat rose, bottom stayed cold. Moved to the bottom. Much better.
Filter design – Original filter clogged fast in heavy dust. Switched to a cyclonic pre‑filter. Lasts 10x longer.
Door seals – Used automotive‑grade bulb seals. Stays flexible down to -40°C. No cracking.
Customer feedback – An Arctic operator wanted a way to check internal temp without opening the door. Added a display on the outside.
Packaging and Transportation
Shipped from Xi'an – On a heavy skid, bolted down, covered with a breathable waterproof cover.
No crate needed for domestic – The unit itself is the crate. For export, add a wooden crate.
Documentation – Laminated cold weather quick start, full manual on USB.
Extra filter – One spare filter included.
After‑Sales Service
1‑year warranty – Covers electronics, heater, fans. Filters are consumable.
Spare parts (heater element, fans, control board) kept in Xi'an.
Email support – We answer within one business day. Include temperature readings.
Qualification Certification
CE – LVD and EMC.
MIL‑STD‑810 – Environmental test report available.
ISO 9001:2015 – Our Xi'an facility.
Frequently Asked Questions
Q1: What is a 90kVA 400Hz ground power unit?
A 90kVA 400Hz ground power unit provides external AC electrical power for compatible aircraft and aviation ground applications. The ACSOON 90kVA model provides three-phase 115V/200V, 400Hz AC output.
Q2: Can it work with 50Hz and 60Hz mains power?
Yes. The GPU400 specification supports three-phase 50Hz/60Hz input, with several nominal input-voltage configurations available.
Q3: Can the input voltage be customized for my country?
Different input configurations are available. Send the actual voltage, frequency and phase available at your installation site before ordering.
Q4: Can ACSOON customize the cable and aircraft connector?
Project-specific cable length and connector requirements can be discussed during technical confirmation.
Q5: Can I order an OEM version with my own logo?
Yes. OEM branding, labeling and selected appearance options can be discussed before production.
Q6: What information should I send for a quotation?
Send your aircraft/application, required capacity, input voltage/frequency, cable length, connector requirement, installation environment and destination country.
Q7: What is the warranty?
The standard warranty for this product is one year, subject to the agreed sales terms.
Contact Us
For technical specifications or global solutions for the 90kVA 400Hz Aircraft GPU: acpower@acsoonpower.com, or submit your requirements using the form at the bottom of our website.
