Tronair 28V DC Aircraft Ground Power Units
- SCR system – reacts much faster to sudden inrush of current, especially during a start
- Closed loop voltage control – very steady consistent power, less than 0.2 V RMS ripple, without any dips or uctuations in voltage under varying loads, newer aircraft are very sensitive to ripple, noise and harmonics, exceeds the MIL-STD-704 requirement
- One Transformer – helps keep system in balance
- Large 25kva transformer – more power for high amperage engine starting and less losses in
steady state conditions - More value for your dollar – start all aircraft and run the air conditioning
- We use two printed circuit boards to control the entire unit – one board controls the SCR ring
and the other controls the unit voltage and current - Our unit uses a thermocouple temperature probe in the main system transformer to control a
variable speed cooling fan system – keeps the unit cooler and quiet – it only comes on as needed - Long lasting control panel LED lamps – LED’s also act as fault code indicators for
easy troubleshooting - Easy input voltage selection on the main transformer – factory setup and easy to put into service
- GPU uses an emergency stop shunt-trip main input circuit breaker for the emergency
shutdown system – improves safety - Output contactor – safety, preview applied voltage, can’t drain aircraft batteries when off
- Output monitoring, warning, and shutdown including noti cation
- Outlet that matches local power – standard
- 20 ft DC output cable
- Safety controller monitors input and output voltages, phases, temperatures, and currents
- Current limiting (soft start) and current limit adjustment – standard
- 115VAC (220V international version) 20A receptacle – standard
- Shipping container – standard
- Built for indoor and outdoor use – standard
- Casters are designed for easy movement – standard
Available Model Numbers:
- 112860S0100 – 60 HZ Voltage – 50′ Input Cable
- 112860S0200 – 60 HZ Voltage – 100′ Input Cable
- 112850S0100 – 50 HZ Voltage – 50′ Input Cable
- 112850S0200 – 50 HZ Voltage – 1000′ Input Cable
- 112860D0100 – 60 HZ Voltage – 50′ Input Cable – Dual Output
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