Tronair 11-4290-0000 – 90 kVA Dual 400 Hz AC & 28V DC Diesel Ground Power Unit (GPU)
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The Tronair 11-4290-0000 dual AC and DC ground power unit (GPU) remains ahead of the curve with the latest Tier 4 Final emissions-compliant diesel engine. This 90 kVA unit serves as both a 400 Hz AC and 28V DC power source for parked aircraft.
The second output is available providing 28.5V DC power up to 600 amps continuous for aircraft servicing and 2,000 amps peak for starting.
The award-winning Doosan diesel engine comes with an industry-leading three-year warranty and has electronic controls for more precise control over engine performance. This GPU requires no diesel particulate filter, reducing maintenance interval requirements and improving fuel economy.
SCR regulation and RC circuit ripple filtration ensure a finely tuned unit cable operating with the most sensitive aircraft. A large Murphy Digital Controller/Display allows the operator to monitor engine parameters in addition to fault codes. An aircraft end cable interlock circuit alerts the operator to a poorly connected cable. End-of-cable voltage sensing and output voltage-drop compensation ensure full power is provided to the aircraft. A large 35-gallon fuel tank allows for eight or more hours of run time at the rated load.
Standard Features
- Powered by the award-winning Doosan Tier 4F electronic engine with full-authority electronic controls for more precise control over the performance of the engine
- Extended service intervals using extended filters and lubricants, up to 500 hours between scheduled service
- Engine operates with ultra-low sulfur diesel fuel
- Fuel/water separator with water-in-fuel sensor and electronic indication
- Large 35-gallon, high-density cross-linked polyethylene fuel tank for 8+ hours of use
- Low fuel warning and no fuel shutdown system
- Shut down on low oil pressure and high engine temperature commonly seen listed as (LOP/HET protection)
- 12-volt control and starting circuitry for easy cold-weather starting
- Automated glow plug control for cold weather starting
- Large engine Digital Display and Diagnostics module (DDD) – a multifunction tool to view engine parameters and fault codes
- Automatic 60-second power-off delay engine shutdown for turbo protection
- Three-year engine warranty
- Powerful 80kw, AVR, and 90kVA alternator with SCR regulation
- Maintenance-free, long-life single bearing
- Automatic output build-up and protection
- Cable head sensing and output drop compensation system ensures full power is provided to aircraft
- Aircraft cable head interlock circuit
- Wiring and color code in accordance with CE, NFPA, and NEC
- 30-ft. (9.1 m) AC output cable
- Durable, compact, maneuverable, trailer-mounted unit with fifth-wheel steering
- Front-wheel scrub brake for simplicity
- Weather-resistant, powder-coated sheet metal to prevent corrosion
- Corner lights and stack light
- Large cable trays for easy cable storage
- Durable powder-coat finish (Tronair Blue)
Tier 4F Diesel Engine Features & Model
- Model: D34 Doosan Tier 4 Final
- Engine Warranty: 3-year warranty
- Rated Output @ 1,800 rpm: 130 HP (97 kW)
- Cylinders - Displacement: 4 Cylinder – 3.409L
- Fuel Tank: 35-gallon (133 liters) for 8-hour run time
- DEF Fluid: 4-gallon (15 liters) tank for 8-hour run time
- Output: 400 Hz 90 kVA, and 28.5V DC 600 amp continuous, 2,000 amp peak
- Electrical System: 12V Negative Ground
- Battery: 1,000 CCA, maintenance-free
- Alternator: Yanan 90 kVA with 80 kW AVR
- Digital display and diagnostics module RC ripple filter
- Fuel/water separator
- Corner and stack lights
- Low fuel warning system
- No fuel shutdown system
Additional Features for 28V DC Unit
- Unit allows simultaneous use of 400 Hz AC and 28.5 VDC
- Powerful 80kw, AVR, and 90kVA alternator with SCR regulation and ripple filter for ultra-low DC output ripple
- Adjustable peak output current limiting control, 2,000 amp peak, 600 amp continuous output
- 30-ft. (9 cm) DC output cable
Specifications
- Weight: 4,000 lbs. (1,814 kg)
- Length: 113.5" (288 cm)
- Width: 79" (201 cm)
- Height: 74.5" (189 cm)
- Output Cables: 30-ft. (9.1 m) AC & DC output cables
- Finish: Powder-coated and corrosion-resistant
- Frame: Trailer-mounted with fifth-wheel steering
- Brake: Front wheel scrub
- Digital Display & Diagnostic Model: Murphy MPC20 & PV380 Digital Controller/Displays
| Alternate Models | |
|---|---|
| 11-4090-0000 | 90 kVA Model Only |
| 1190400C128T3 | Previous Model Number |
| 1190400C1T3 | Previous 90 kVA Only Model Number |
| 1190400C28T3 | Previous Model Number |
| 1190400CT3 | Previous 90 kVA Only Model Number |
| General Information | |
|---|---|
| Part # | 11-4290-0000 |
| Manufacturer | Tronair |
| Warranty | |
|---|---|
| Details | View Warranty Details |
| Shipping Information | |
|---|---|
| Shipping Weight | 4500 lbs. |
| Shipping Dimensions | 130 x 92 x 82 in. |
| Schedule B | 9032810080 |
| ECCN | EAR99 |
| Spare Parts | |
|---|---|
| 17075 | CABLE, AIRCRAFT W/O HEAD SENSE |
| EC-1934 | CABLE, DC OUTPUT 32 FT. |
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QUESTIONS & ANSWERS
No other cable length option is available for this unit at this time.
Yes. The design, development, and manufacture of this ground power unit is in accordance with European Community guidelines.
H-3877 is the replacement 35-gallon fuel tank for this ground power unit.
EC-3010 is the replacement panel LED light assembly for this ground power unit.
The recommended spare parts for the 11-4290-0000 ground power unit include:
- H-5272 – Glow Plug
- H-5273 – Alternator
- H-5262 – Oil Filter
- H-5274 – Fuel Filter
- H-5275 – Air Cleaner Element Secondary
- H-5276 – Air Cleaner Element Primary
- H-5277 – Injector Assembly
- H-5278 – Starter
- H-5279 – Water Pump Assembly
- H-5280 – Thermostat Assembly
- H-5281 – Auto Tensioner
If the output voltage exceeds a specific value for a certain amount of time, the output contactor(s) that apply voltage to the cable(s) will be disabled. Tronair used MIL-STD-704F to create the overvoltage vs. time curves programmed into these and all other Tronair GPUs.
These fault codes indicate engine/system faults that may have latched from a previous issue. To attempt clearing: acknowledge the fault on the display, then hold the green start button until the engine turns over. If the unit starts and runs normally afterward, test it under load connected to an aircraft. If faults return under load, additional troubleshooting of the engine or control system is required. Always refer to the unit's manual for the specific fault code definitions.
