Operation Manual – ITW GSE 7400 Battery Powered GPU
90 kVA
For GPUs with 28 VDC Active Rectifier Unit
Document No. 575.410DB Page 166 of 195
13.0 Specifications
Output:
Voltage : 28 VDC
Current : 600 A continuously (300 A simultaneously with 400 Hz)
Voltage regulation : < 0.5%
Voltage ripple : < 2%
Voltage transient recovery : Complies with ISO 6858 / MIL-704E
Overload capability :
1200 A for 30 seconds
1800 A for 10 seconds
2100 A for 5 seconds
2400 A for 2 seconds
To protect the aircraft, the output voltage is decreased by 1 V per 300 A in the
overload range (600-2400 A).
Setup:
Output voltage : 19-33 V
Voltage compensation : 0-3 V per 600 A
Current limit : 300-2400 A in steps of 50 / 100 / 200 / 300 A*
*Steps depending on chosen value in the setup menu.
Protections:
Rectifier temperature too high
Short circuit at output
Over-and under voltage at output in case:
U < 20 VDC for more than 4 seconds
U > 32 VDC for more than 4 seconds
U > 40 VDC for more than 150 ms
Physical:
Additional weight to 400 Hz unit: 100 kg / 220 lbs (without cables)
Ambient:
Operating ambient for the 400 Hz and 28 VDC combination unit is -10°C to 45°C / -40 F to 113 F.