Engine - Cummins QSB 4.5, 155 HP, 4 cylinder engine operating at 2000 rpm 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 V continuous rating Meets or exceeds SAE ARP5015A and MIL-STD-704-F electrical power quality requirements 35 ft (10.7 m) AC output cable with AN3430 aircraft plug 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 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 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