GROUND POWER UNITS - GPU

115/200V, 3-Phase, 400 Hz aircraft power, using reliable components from world class suppliers

RATINGS FOR AC & DC RANGE

  • 40 kVA
  • 60 kVA
  • 90 kVA
  • 120 kVA
  • 140 kVA
  • 180 kVA

        @0.8 power factor. Units can be subjected to a 25 percent overload*

Engine

  • Cummins | QSB 
  • Cylinder Diesel powered
  • Solid state governor
  • AGM battery

Options

  • Skid mounted
  • Transformer Rectifier for 28.5 VDC
  • Engine coolant heater 120 VAC
  • Position lights

Alternator

  • Marathon Brushless single bearing, 100,000 hours TBO.
  • Output meets MIL‐STD‐704F

Unit Performance

  • 115/200 VAC, 3 phase, 400 hertz. 0.8 PF
  • Available in continuous ratings from 40 kVA through 180 kVA
  • 125% Overload for 5 minutes
  • Operating environment is 30oC to +40ºC, 1000 meters altitude. Some models are derated at higher values
  • All steel powder coated enclosure
  • Towbar activated brake

Engine Protection

  • Low oil pressure shutdown
  • High coolant temperature shutdown
  • Low fuel shutdown
  • Oil and fuel filters with water separator
  • Over speed shutdown
  • Emergency stop switch
  • Output Power Protection
  • Over frequency protection
  • Under frequency protection
  • Under/ over voltage trip

Control Panel

  • Stateofart digital controller monitors engine sensors and assures power quality limits are not exceeded.
  • Simple scrollthrough menu of all the significant engine and output power parameters.
  • Monitoring of the engine includes oil pressure time coolant temperature, battery voltage, and total run
  • AC power monitoring includes voltage, current, and kVA of each phase, as well as frequency and total kVA.
  • Warnings for a weak battery, low fuel level, low oil pressure, or similar maintenance activities.
  • If shutdown occurs to protect the equipment, event is captured and stored. The event recorder stores engine starts/stops as run time.
     *SJL ground power units are capable of 125% rated power for five minutes.

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