Ground Power Unit – Reliable Aircraft GPU Solutions by Jetsys Defence
The Jetsys Defence Ground Power Unit delivers stable 400 Hz AC and 28.5 V DC power for parked aircraft. Built for tough flight-line conditions and continuous ramp duty, our GPUs help operators cut APU runtime, reduce emissions, and improve turnaround efficiency—setting a benchmark among Ground Power Unit manufacturers.
Product Overview
Our Ground Power Unit (GPU) line covers mobile trailer, vehicle-mounted, battery/eGPU, solid-state rectifier (SSR), and fixed electrical ground power (FEGP) configurations. Each system provides clean, tightly regulated power to protect avionics and sensitive loads across regional, narrow-body, and wide-body fleets.
Key Features of Ground Power Unit
Clean, Stable Output
Tight voltage regulation, low THD, and fast transient recovery safeguard aircraft electrical systems during gate operations and maintenance.Dual-Mode Power
400 Hz 115/200 V AC plus 28.5 V DC modes support aircraft power-up, testing, avionics servicing, and line maintenance.Built for the Ramp
Heavy-duty chassis, sealed controls, corrosion-resistant finishes, and wide temperature operation ensure reliable uptime in harsh apron conditions.
Smart Monitoring
Touchscreen HMI with live parameters, event/fault logs, maintenance timers, and optional remote diagnostics for fleet visibility.Safety & Protection
Comprehensive safety suite including under/over-voltage, frequency protection, overload, neutral open detection, phase rotation, and emergency stop.
Technical Specifications of Ground Power Unit (GPU)
| Parameter | Specification |
|---|---|
| AC Output Ratings | 40 / 60 / 90 / 140 / 180 kVA @ 0.8 pf |
| AC Voltage / Frequency | 115 V (L-N), 200 V (L-L), 400 Hz (3-phase, 4-wire) |
| AC Regulation | Voltage ±1%, Frequency ±1%; THD < 2% |
| AC Transient Recovery | ±20% max with ≤ 200 ms recovery |
| Overload Capability | 110%/1 h; 125%/5 min; 150%/10 s; 200%/2 s (model-dep.) |
| DC Output | 28.5 V DC continuous 800 A, 5-min overload 1000 A |
| Prime Mover (Diesel GPU) | Industrial diesel engine + brushless alternator |
| eGPU / SSR Options | Battery-electric eGPU and solid-state rectifier units |
| Noise Level | ≤ 85 dB(A) at 1 m (model-dependent) |
| Operating Temperature | −32 °C to +55 °C (extended options available) |
| Ingress / Finish | Weather-protected enclosure; corrosion-resistant coating |
| Monitoring | Touch HMI: V, A, Hz, oil pressure, coolant temp, fuel, hours |
| Protections | UV/OV, UF/OF, overload, neutral open, phase rotation, E-stop |
| Mounting Options | Towable trailer, vehicle-mounted, skid, fixed (FEGP) |
| Accessories | 400 Hz cables, heads, DC leads, caps, cable reels, trolleys |
Variants of Ground Power Unit
Diesel Mobile GPU
High-duty solution for busy ramps with fast deployment between stands.Battery-Electric eGPU
Zero-local-emissions option suitable for indoor gates and noise-sensitive operations.
Solid-State Rectifier (SSR) – 28.5 V DC
Compact, low-maintenance power source for shop use and line-station servicing of Ground Power Unit aircraft.Fixed Electrical Ground Power (FEGP)
Bridge- or pit-mounted solutions offering continuous gate availability and minimal operating cost.
Benefits of Ground Power Unit
Lower APU Run Time
Reduces fuel burn, environmental noise, and emissions on stand.Avionics Protection
Clean, regulated output minimizes nuisance faults and prevents damage to sensitive systems.Operational Uptime
Robust design with easy service access helps avoid downtime.
Flexible Integration
Multiple formats suit stand layout, hangar use, or fleet mix.Lifecycle Value
Efficient conversion and maintainable architecture reduce long-term cost of ownership.
Applications of Ground Power Unit
Gate & Remote Stand Power
Used during aircraft turnaround and transit operations.Maintenance Operations
Ideal for line maintenance, avionics updates, and onboard servicing – Ground Power Unit for aircraft maintenance.
Hangar Operations
Reliable power for power-up tests and system checks.Military Flight Lines
Supports deployed air operations and field servicing – Military Ground Power Unit.
Control & Diagnostics
HMI & Telemetry
Real-time electrical parameters and engine data displayed through touchscreen interface.Fault Logs
Event history and guided troubleshooting streamline maintenance.
Maintenance Scheduler
Service reminders and timers ensure fleet readiness.Remote Monitoring
Optional remote diagnostics for centralized fleet oversight.
Why Choose Jetsys Defence for Ground Power Units (GPU)
Aerospace-Grade Power Electronics
Jetsys GPUs deliver clean, tightly regulated 28.5 V DC and 115/200 V AC output, eliminating voltage fluctuations that can damage avionics or trigger nuisance faults.High Reliability on the Ramp
Designed for harsh tarmac conditions with rugged frames, weather-sealed components, corrosion-protected hardware, and vibration-resistant mounts.Lower APU Fuel Burn & Noise
Replacing APU power with GPUs reduces fuel consumption, carbon emissions, and noise at civilian and military airfields.
Configurations for Every Operation
Mobile trailer GPUs, vehicle-mounted systems, fixed ground power units, and battery-electric eGPUs for silent indoor operation.Fast Service & Local Support
Jetsys provides spares, replacement connectors, service kits, and quick-turnaround maintenance to keep your flight line active.Custom Engineering for Fleet Requirements
Input power, output ratings, cable length, shock protection, and safety interlocks can be tailored for helicopters, transports, fighters, and trainers.
Ground Power Unit Range and Related Equipment
Each configuration in the Jetsys Defence ground power range has its own page, alongside other ground supply equipment used on the flight line.
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