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Electrical (ATA-24)/GPU/Ground Power Unit, 400 Hz AC, 28.5 VDC

Features

  • Unit allows simultaneous use of 400 Hz AC and 28.5 VDC
  • Engine - Cummins QSB 4.5, 155 HP, 4 cylinder, Tier 3/EU Stage-3A engine operating at 2000 rpm
  • 28.5 VDC provides 600 amps continuous and 2000 amps maximum
  • 24 VDC battery system
  • Electronic governor system (via the engine ECM)
  • Intake manifold pre-heater for cold weather starting
  • Electronic controlled engine ensures maximum performance
  • Operates on diesel or jet fuel
  • Engine Protection - Low oil pressure shutdown
  • High coolant temperature shutdown
  • Low coolant level shutdown
  • Environmental - Operating Temperature: -25º F to 125º F (-31º C to 52º C)
  • Relative Humidity: 10 to 95%, non-condensing
  • No altitude derating required up to 10,000 ft when running in normal operating range
  • Electrical - 90 kVA, 72 kW, 3 phase, 4 wire, 115/200 AC V continuous rating
  • Meets or exceeds SAE ARP5015A and MIL-STD-704-F electrical power quality requirements
  • 30 ft (9 cm) DC output cable with AN2551 aircraft plug
  • 35 ft (10.7 m) AC output cable with AN3430 aircraft plug
  • DC output current can be adjusted from 300 thru 2000 amps by a Current Limiter switch
  • Industry leading 3 phase 25 KVA input power transformer and a solid state 2000 amp Silicon Controlled Rectifier (SCR) powers the 28.5 VDC
  • Voltage Regulation: ± 1% no load to full load
  • Voltage Adjustment: ± 15 V
  • Line drop compensation ensures full power to the aircraft under heavy loads
  • Individual Harmonic Distortion: <1% of the fundamental (RMS) voltage
  • Total Harmonic Distortion: <2% of the fundamental (RMS) voltage
  • Phase voltage balance not to exceed 1% on a 3 phase balanced load and does not exceed 4% with a 33% unbalanced load
  • Frequency Regulation: ± 2 Hz steady state
  • Displays/Instrumentation - All engine and laternator parameters and faults are controlled, monitored and displayed using an advanced digital GenSet controller with option to connect to a web-based server allowing for real-time central monitoring through the internet
  • LED indicator lamps
  • DC interface Printed Circuit Board (IPCB); montors, controls and protects all aspects of DC operation. The IPCB is connected to the firing board for the SCR pack; it is responsible for the current output of the rectifier
  • Generator Protection - Automatic voltage regulator tightly controls the voltage output to a ± 5.5% accuracy of the voltage set point, response time is <4 ms
  • When a fault is detected the enhanced automatic voltage regulator (EAVR) will disconnect the output cable from the aircraft
  • Voltage Disconnects Output: Over - between 124 to 126 V in 1 second and 180 V L-N in 50 ms
  • Voltage Disconnects Output: Under -<104 V L-N in 7 seconds
  • Frequency Disconnects Output: Over - >420 Hz in 5 seconds
  • Frequency Disconnects Output: Under - >380 Hz in 7 seconds
  • Built in DC protection includes output over/under voltage, over current, input phase loss detection, missing phase, input over/under voltage, input circuit breaker 100 amps, transformer over temperature, SCR over temperature and a controlled variable speed cooling fan
  • Generator Overload - >125% rated load for 5 minutes
  • >15% for 30 seconds
  • >200% for 10 seconds
  • >210% for 2 seconds
  • Individual outputs 325 amps, 5 minutes, 90 kVA
  • Structure - Heavy-duty steel chassis, low profile and fifth wheel
  • Large, removable doors for easy access
  • 35 gallon rust free fuel tank provides 12+ hours of run time
  • Towbar latches in upright position, a hand brake ensures that the GPU will not roll when towbar latch is release
  • Forklift pockets
  • Tie down rings
  • Deep cable trays
  • Fire Extinguisher
  • Finish: Durable Powder Coat Tronair Blue
  • CE marked
  • Additional Features - 1190400C128T3:
  • "No Fuel" engine shut down system with instrument panel lam and strobe stack lamp
  • Engine running LED stack lamp
  • Side marker LED lamps
Model Number Length
in (cm)
Width
in (cm)
Height
in (cm)
Weight
lb (kg)
1190400C128T3 106 (269) 70 (178) 61 (155) 3,200 (1,451)
1190400C28T3 106 (269) 70 (178) 61 (155) 3,200 (1,451)