115V 400Hz Ground Power Unit
2.Technology: Solid-State Static Frequency Converter (SFC) with 12-pulse rectification and DSP control.
3.Input: Global three-phase mains (380V-480V, 50/60Hz), wide voltage tolerance.
4.Output: Precision 115V/200V, 400Hz, three-phase, four-wire AC power.
5.Core Application: Primary ground power source for aircraft servicing, engine start, and system tests on the apron and in hangars.
6.Key Advantages: High power quality, rugged mobile design, auto voltage compensation, military-standard interlock.
7.Brand: ACSOON – a proven supplier of reliable aircraft ground support equipment.
- Product Description
115V 400Hz Ground Power Unit | Mobile & Stationary Solid-State GPU for Aircraft Support
XI'AN JERRYSTAR INSTRUMENT CO., LTD delivers a robust and dependable 115V 400Hz Ground Power Unit, engineered to be the workhorse of aircraft ground operations. This standalone GPU provides the critical 400Hz power required by commercial and military aircraft, ensuring safe and efficient turnarounds, maintenance, and testing. Built for durability in demanding airport environments, the ACSOON Ground Power Unit combines superior electrical performance with operational reliability, making it an essential asset for any airside support team.



Technical Summary
| Parameter | Specification |
|---|---|
| Input (AC) | |
| Phases | Three Phase + PE |
| Voltage | 380V, 400V, 415V, 440V, 480V (±15%) |
| Frequency | 50Hz / 60Hz (40-70Hz range) |
| Power Factor | ≥ 0.9 |
| Output (AC) | |
| Phases | Three Phase, Four Wire (3Ph+4W) |
| Voltage | 115V / 200V (L-L), adjustable 100-130V (L-N) |
| Frequency | 400 Hz (Nominal) |
| Stability | Voltage: ±1%; Frequency: ±0.01% |
| Performance | |
| Waveform | Pure Sine Wave |
| THD | < 2% (Linear Load) |
| Efficiency | ≥ 93% |
| General | |
| Display | VFD for V, A, Hz, kW, PF, Status, Error Codes |
| Protection | OCP, OVP, SCP, OTP, Phase Imbalance |
| Overload | 125% (10 min), 150% (60s) |
| Enclosure | IP54 (Standard on trolley) |
| Cooling | Forced Air |
| Operating Temp. | -20°C to +50°C |
| Standards | MIL-STD-704F, ISO6858, GJB181A |

115V 400Hz Ground Power Unit Main Features
- Solid-state static frequency converter technology for high reliability and minimal maintenance.
- Automatic voltage compensation to maintain correct voltage at the aircraft plug, compensating for cable losses.
- Three-phase, four-wire output (115V L-N / 200V L-L).
- 12-pulse input design for low input harmonic distortion and high power factor (≥0.9).
- Complete protection suite: Over Current, Over Voltage, Short Circuit, Over Temperature, Phase Loss.
- Strong overload capability: 125% for 10 minutes, 150% for 60 seconds.
- Integrated cable reel with automatic control for safe and tidy cable management (on trolley models).

Why Choose ACSOON 115V 400Hz Ground Power Unit?
The ACSOON 115V 400Hz Ground Power Unit is built for performance, safety, and ease of use in daily ground operations. Key benefits include:
- Aircraft-Grade Power Fidelity: Delivers a pure, low-distortion 400Hz sine wave with exceptional voltage and frequency stability, fully compliant with aircraft system requirements.
- Ruggedized for Airport Use: Housed in a heavy-duty, weather-resistant (IP54) enclosure, often mounted on a towable trolley for maximum mobility and durability on the ramp.
- Enhanced Operational Safety: Features a critical 28VDC control interlock and comprehensive fault protection, ensuring power is only delivered when a safe, proper connection is made.
- Intelligent & User-Friendly: Equipped with self-diagnostic systems, event logging, and a clear digital display for real-time monitoring and simplified troubleshooting by ground crew.
- High Efficiency & Low Noise: Solid-state design ensures high energy efficiency (≥93%) and significantly lower acoustic noise compared to traditional diesel or M-G set GPUs.
Application Areas
The 115V 400Hz Ground Power Unit is deployed in critical ground support roles:
- Aircraft Turnaround Operations: Providing essential power at the gate for cabin systems, galley, and avionics checks while engines are off.
- Hangar Maintenance & Overhaul: Serving as the primary power source for prolonged system diagnostics, component testing, and overnight servicing.
- Military Flight Line Operations: Supporting fighter jets, transports, and special mission aircraft with MIL-STD compliant power.
- Engine Starting Procedures: Supplying stable, high-quality power required for initiating aircraft auxiliary power units (APUs) or supporting engine start carts.
- Cargo & Line Maintenance: Used by technicians for troubleshooting and rectifying electrical issues on the ramp.

Our Services

Quality Control
Each 115V 400Hz Ground Power Unit is validated to withstand rigorous airport use:
- Stress testing of structural components and trolley chassis (for mobile units).
- Extended full-load and overload burn-in cycles to validate thermal management.
- Comprehensive performance testing under simulated unbalanced load conditions.
- Functional testing of all safety interlocks, cable reel systems, and protection circuits.
- Final inspection and certification against aviation ground support specifications.
R&D Results
Our R&D continuously improves the 115V 400Hz Ground Power Unit:
- Development of more compact and lightweight power modules without sacrificing output capacity.
- Integration of IoT capabilities for remote fleet monitoring, predictive maintenance, and usage analytics.
- Enhancements to the user interface for even more intuitive operation by ground staff.


Packaging and Transportation
- The unit is supplied as a fully integrated, pre-tested system on a towable trolley or as a stationary skid.
- Securely fastened in a steel-framed crate or container for ocean freight.
- Delivered with comprehensive documentation, including parts manual, test reports, and airport compliance certificates.
After-Sales Service
Comprehensive 24-month warranty.
- Global service network with airport-side support availability.
- On-site training for ground crew on safe operation and basic troubleshooting.
- Guaranteed availability of critical spare parts and exchange modules.

Qualification Certification
CE Certification;Compliance with MIL-STD-704F (Aircraft Electric Power Characteristics);ISO 6858 (Aircraft ground support electrical supplies);Designed and tested to meet airport authority ground equipment requirements.


FAQ |
|---|
| Q1: What is the difference between this Ground Power Unit and a standard 400Hz power supply? |
| A: This 115V 400Hz Ground Power Unit is a complete, ruggedized system designed specifically for harsh airport environments. It includes features like a heavy-duty enclosure, cable reel, aircraft connector, towable trolley, and safety interlocks that a standard lab power supply does not have. |
| Q2: How is it connected to the aircraft? |
| A: It is connected via a standardized 400Hz aircraft power cable, which plugs into the GPU's output socket on one end and the aircraft's ground power receptacle on the other. |
| Q3: Can it power all types of aircraft? |
| A: It is designed to power aircraft that require 115V/200V 400Hz power, which includes most commercial jet aircraft and many military aircraft. Always confirm the specific power requirements of the aircraft. |
| Q4: Does it require special facility power connection? |
| A: It requires a standard industrial three-phase power connection (e.g., 400V/50Hz or 480V/60Hz). The input range is wide to accommodate various airport electrical supplies. |
| Q5: What maintenance does it require? |
| A: As a solid-state unit, it requires minimal maintenance compared to diesel GPUs. Routine checks include cleaning air filters, inspecting cables and connectors, and verifying system performance as per the maintenance manual. |
Contact Us
For technical specifications, airport compliance details, or a quote for the 115V 400Hz Ground Power Unit: acpower@acsoonpower.com, or submit your requirements using the form at the bottom of our website.












