Featured Aviation & Industrial DC Power Systems
Precision-engineered 28.5V DC GPUs, static frequency converters, and heavy-duty rectifiers certified under ISO 9001 and verified on-site by TÜV Rheinland.
Portable 28.5V Aircraft Ground Power Unit (GPU)
- Output: 28.5V DC (100A–500A)
- Peak Load: Up to 2000A Engine Start
- Topology: Solid-State IGBT Inverter
- Cooling: Forced Air / IP54 Rugged
Triple Output 28.5V 100A–600A Aviation GPU
- Continuous: 28.5V DC / 600A Continuous
- Interface: Military Standard Aircraft Plug
- Protection: Overvoltage, Reverse Polarity
- Regulation: ≤ 0.5% Load Regulation
220VAC to 28.5VDC 200A Lightweight GPU
- Power: 5.7 kW Constant DC
- Input: 220V AC ±15%, 50/60Hz
- Application: Helicopters, Turboprops, UAVs
- Portability: Castor Mounted Mobile Chasis
930kVA 3-Phase 400Hz Static Aircraft GPU
- Output: 115V / 200V AC 400Hz
- Capacity: Up to 930 kVA Centralized
- Efficiency: ≥ 94% at Full Load
- Harmonics: THD < 2% Linear Load
40kVA–500kVA Solid-State Frequency Converter
- Conversion: 50Hz → 60Hz / 400Hz
- Switching: High-Frequency SPWM IGBT
- Dynamic: < 5ms Transient Recovery
- Standards: DFS 400, ISO 6858, CE
75kW Water-Cooled DC Rectifier (5000A–6000A)
- Output: 12V/15V DC, Up to 6000A
- Cooling: Deionized Water Cooling Loop
- Control: CC/CV Digital Control, RS485
- Target: Aviation Anodizing & Plating
12V 4000A 48kW High-Frequency Rectifier
- Topology: Full-Bridge Soft-Switching
- Ripple: ≤ 1% Low RMS Ripple
- Duty Cycle: 100% 24/7 Continuous Duty
- Enclosure: Anti-Corrosive Epoxy Powder
48V 625A 30kW Auto-Polarity Reversing Supply
- Function: Automated Polarity Reversal
- Timing: Independent 4-Stage Timers
- Interface: Modbus-RTU / PLC Integration
- Application: Marine Ballast & Cooling Loops
Technical Architecture: 28.5V DC Ground Support Units in Contemporary Aviation Engineering
In modern civil, cargo, and military aviation operations, the standard 28.5V DC ground power unit (GPU) serves as the primary ground interface for turbine starting, avionics bus maintenance, pre-flight checks, and onboard battery preservation. Sourced directly from our high-capacity manufacturing base in Guangdong, China, our 28.5V DC systems are engineered to replace obsolete engine-driven generator trailers and rotary convertors with solid-state, high-frequency Insulated Gate Bipolar Transistor (IGBT) architectures.
Aviation electronics, especially sensitive cockpit glass architectures, modern radar packages, and flight-management computers, require strictly controlled power. Transient overvoltages, line surges, or harmonic spikes will trip protective bus-tie relays or permanently degrade onboard avionics. Our portable and static 28.5V GPUs utilize a closed-loop digital signal processor (DSP) core running pulse-width modulation (PWM) switching frequencies up to 20 kHz. This achieves exceptional transient recovery times (<5 ms for a 100% step-load variation) and low ripple (≤1% RMS), providing an exceptionally clean power profile matching MIL-STD-704F, ISO 6858, and ARP 1247 international aviation benchmarks.
| Operational Metric | Traditional Diesel/Rotary GPU | Fenvix Solid-State 28.5V DC GPU | Engineering Advantage for Airfields |
|---|---|---|---|
| Electrical Efficiency | 62% – 72% (fuel to electricity) | ≥ 91% – 93% (grid/generator to DC) | Substantial reduction in operating overhead and carbon footprint |
| Transient Response (0-100% Load) | 80 ms – 150 ms engine throttle lag | < 5 ms instantaneous closed-loop DSP control | Prevents avionics bus drops and computer reboots during engine cranking |
| Ripple & Output Noise | 2.5% – 5.0% with severe brush harmonics | ≤ 0.5% – 1.0% RMS across rated output | Zero interference with military tactical UHF/VHF, transponders, and radar |
| Acoustic Footprint | 85 dB(A) – 105 dB(A) at 7 meters | < 65 dB(A) silent solid-state operation | Hangar safe; improves ramp safety and ground crew communication |
| Mean Time Between Failures (MTBF) | 2,500 – 4,500 operating hours | > 40,000 hours (modular solid-state components) | Eliminates engine oil changes, belt replacements, and alternator wear |
Localized Industrial Applications Across the Odesa Hub & Black Sea Corridor
The strategic port city of Odesa represents a multi-modal transport gateway on the Black Sea, encompassing heavy maritime shipping, intermodal rail logistics, maintenance repair and overhaul (MRO) hangars, and tactical aviation dispersal nodes. Supplying precision ground power equipment to the Odesa region requires specialized engineering adaptations tailored to marine ambient atmospheric conditions, local grid instability, and cross-platform aviation airframes.
1. Hangar & Apron MRO Operations
Support for regional cargo turboprops (Antonov An-24/An-26), light transport jets, VIP business charters, and commercial utility helicopters operating through Odesa International Airport (ODS) and regional airfields. Units deliver continuous 28.5V DC for pre-flight avionics alignment, radar calibrations, hydraulic auxiliary pump powering, and battery top-charging without consuming onboard fuel or auxiliary power unit (APU) life.
2. Maritime Port & Naval Heli-Deck Support
Odesa's extensive marine facilities, including the Port of Odesa, Chornomorsk, and Pivdennyi, require ruggedized ground support equipment for shipborne rotary craft (such as Ka-27/29 and Mi-8/17 series helicopters). The coastal atmosphere carries heavy salt spray and high humidity. Our units feature conformal-coated PCBs, polyurethane-dipped copper busbars, and marine-grade IP54 powder-coated enclosures to prevent galvanic corrosion and premature dielectric breakdown.
3. Tactical Dispersal & UAV Flight Lines
Tactical and rapid-deployment logistics require compact, highly mobile ground power. Our single-phase 220V AC input and portable three-phase 380V units can operate from field diesel generators, supplying continuous, stable 28.5V DC for heavy unmanned aerial systems (UAS), specialized tactical rotorcraft, and regional patrol aircraft where central apron electrification is inaccessible.
Regional Technological Trends: Grid Resilience & Green Ground Operations in Ukraine
The modernization of aviation ground support equipment across Eastern Europe and the Odesa oblast is characterized by three major structural shifts:
- Decarbonization and Electrification of Airfield Ramps: International standards are pushing operators away from continuous idling of diesel-driven GPUs. Running turbine APUs on the ground is costly and inefficient, consuming substantial aviation kerosene per hour. Switching to solid-state electrical GPUs connected to the 3-phase commercial grid or centralized battery banks reduces operating expenditure by up to 75%.
- Extreme Input Grid Voltage Fluctuation Tolerance: Regional utility infrastructures frequently experience brownouts, surges, and phase unbalances. Standard imported machinery with narrow ±5% input tolerances trips out, causing avionics restarts. Fenvix systems incorporate wide-band input rectification circuitry handling 380V ±20% voltage swings and 45Hz–65Hz frequencies without drifting from the calibrated 28.5V DC target.
- Hybrid Fleet Capability (Eastern & Western Standards): Operators in Odesa frequently manage mixed aviation fleets. This includes legacy Eastern airframes requiring high-amperage current-limiting start sequences alongside Western airframes (Cessna Citation, Beechcraft King Air, Leonardo AW139, Airbus Helicopters) demanding strict overvoltage safety gates (≤32V DC tripping at 10 ms). Our programmable soft-start current profiles allow technicians to configure output curves for either standard at the turn of a rotary dial.
Technical Advantages of Fenvix Industrial DC Power Systems
Founded in 2013 in Guangzhou, Guangdong, China, Guangdong Fenvix Technology Co., Ltd. has spent over 13 years solving high-current, non-standard power conversion challenges. Unlike trading agents, we operate our own 3,000 m² production workshop equipped with complete metalworking machinery: CNC punching, plate shearing, milling, drilling, and busbar tapping machines. Every power transformer, heat-sink assembly, and logic rack is fabricated and tested under our direct supervision.
Our power supplies undergo rigorous quality control. All incoming discrete IGBTs (sourced from Infineon and Semikron), electrolytic capacitors, and nanocrystalline magnetic cores pass incoming component screening. Completed units undergo a 72-hour full-load thermal burn-in, dynamic load-step oscilloscope profiling, and dielectric breakdown testing before crating in export-grade ISPM-15 wooden packaging.
Procurement FAQ for Ukrainian & Eastern European Buyers
Direct technical answers addressing logistics, electrical configurations, and operational deployment across Odesa and surrounding regions.
How do Fenvix 28.5V DC GPUs handle starting turbine engines without voltage collapse?
Can the unit operate reliably under coastal maritime conditions in the Black Sea area?
What international certifications and quality compliance documents are supplied with the GPUs?
What are the recommended transit routes and trade terms for shipments to Odesa?
Is there a Minimum Order Quantity (MOQ), and do you offer non-standard custom voltages?
Certified Production & International Compliance
Direct factory manufacturing capabilities verified by global assessment institutions.
ISO 9001:2015
Audited quality control system spanning fabrication, assembly, and testing.
CE & RoHS Certified
Full European compliance for Low Voltage (LVD) and Electromagnetic Compatibility (EMC).
TÜV Rheinland Verified
Independent third-party verified production line, machinery, and factory capacity.
Global Technical Support
Pre-sales engineering sizing, wiring documentation, and remote video commissioning.
Configure Your Aviation Ground Support Power Solution
Direct factory pricing, complete engineering customization, and reliable export logistics to the Black Sea region and worldwide. Speak directly with our power electronics engineering team.
Get Catalog