Portable 28.5V DC Ground Power Unit (100A–500A)
- Output: 28.5V DC Constant
- Peak Starting: Up to 2000A Surge
- Cooling: Forced Air / Sealed
- Compliance: ISO 6858 / EN 1915
Explore our industrial-grade GPUs engineered in our ISO 9001 certified plant. Designed for rugged apron duty cycles, hangars, and flight line operations serving commercial and defense aviation.
As the Auvergne-Rhône-Alpes aerospace corridor undergoes rapid modernization under France's national ecological transition framework, ground operations at airports such as Lyon-Saint Exupéry (LYS) and Lyon-Bron (LYN) face stringent environmental imperatives. This section examines the transition from diesel-powered Auxiliary Power Units (APUs) and rotary motor-generator sets to advanced solid-state frequency conversion systems.
Modern avionics architectures in Airbus A320neo, A350, and Dassault Falcon aircraft demand power conforming strictly to MIL-STD-704F and ISO 6858. Our IGBT-based PWM switching topology guarantees less than 2.5% total harmonic distortion (THD), eliminating transient voltage spikes that risk damage to sensitive flight deck computers.
For regional turboprops (ATR 42/72) and civil helicopters operating across the Alps, starting turbine engines demands instantaneous inrush currents without voltage drop. Our 28.5V DC GPUs utilize high-overload active rectifiers capable of delivering up to 2400A peak engine-starting surges while clamping output ripple under 0.5%.
Aligning with the European Green Deal and the ACI Airport Carbon Accreditation (ACA) Level 4+ targets embraced by Vinci Airports at Lyon, electrifying ground power directly slashes fuel burn. Replacing ground running of aircraft APUs with static GPUs reduces ground-level NOx emissions by 97% and operating costs by up to 82% per turn.
| Performance Indicator | Fenvix Solid-State GPU (IGBT) | Legacy Rotary Motor-Generator | Diesel Engine APU Ground Run |
|---|---|---|---|
| Electrical Efficiency | 94% – 96% | 76% – 82% | 22% – 28% (Fuel Burn) |
| Voltage & Frequency Drift | < ±0.5% Dynamic | ±2.5% Mechanical Drift | Variable load sensitive |
| Acoustic Noise at Apron (1m) | < 65 dBA (Quiet) | > 85 dBA | > 105 dBA (Turbine whine) |
| Maintenance Interval (MTBF) | > 50,000 Hours (Static) | 3,000 Hours (Bearings/Brushes) | 250 Hours (Oil/Filter/Injector) |
| CE & French Grid Standard | NF C 15-100 & CE Compliant | Requires Power Factor Correction | Non-Grid / Emits CO₂ & PM2.5 |
Ground support operations in eastern France require equipment that withstands distinct microclimates—from freezing Alpine winter inversions to intense Mediterranean-continental summers—while maintaining zero unplanned downtime.
At Lyon's premier international hub, high turn frequencies require rugged centralized 400Hz frequency converters mounted directly to passenger boarding bridges (PBB) or parked at remote apron stands. Our units feature tropicalized and winterized conformal coatings, operating seamlessly between -30°C and +50°C without thermal tripping during peak commercial turnarounds.
Handling Europe's top business jets, light turboprops, and private helicopters, Lyon-Bron demands ultra-clean, silent 28.5V DC and compact 115V 400Hz equipment. Our mobile units operate silently in private hangars and Executive VIP ramps, avoiding disturbance while guaranteeing pristine transient-free power for glass cockpits and sophisticated cabin management systems.
In aerospace manufacturing, radar calibration facilities, and maintenance depots situated across Greater Lyon, Saint-Étienne, and Grenoble, precision testing requires non-standard power profiles. Fenvix provides programmable 400Hz and adjustable DC rectifiers equipped with Modbus/RS485 integration for automated avionics burn-in benches and continuous endurance testing.
As a vertically integrated original equipment manufacturer based in Guangdong, China, Guangdong Fenvix Technology Co., Ltd. controls every facet of design and fabrication. Unlike trading intermediaries, our electrical engineers design transformer magnetics, program control algorithms, fabricate sheet metal cabinets, and machine pure copper busbars in-house.
Every Ground Power Unit and solid-state frequency converter undergoes exhaustive factory testing prior to crating: incoming material verification, continuous 72-hour full-load burn-in under dynamic inductive loads, dielectric withstand verification, and thermal imaging calibration using high-precision digital oscilloscopes.
Main Production Line
Assembly Workshop
Cabinet Staging & Load Testing
Harmonic & Waveform Analysis
In-House Metal Enclosure Fabrication
TÜV Rheinland On-Site Audited
Direct answers addressing French grid standards, customs clearance, electrical tolerances, and overseas warranty delivery.
Consult with our power engineers today for customized 400Hz converters and 28.5V DC GPUs delivered directly to Lyon.