From the Airport Planning Manual for the 747-400:
Two co-located connectors, each rated at: 90 KVA, 200/115 Volts AC, 400 HZ, 3 Phase.
Thanks QA1, really helpful information. I'm looking at a theoretical situation where batteries could be used to provide power to this system during a 1 hour turnaround, as such the approximate capacity is of interest.
I assumed a 0.9 Power Factor which would suggest that the average power draw will be 81kW, and therefore 81kWh for a 1 hour turnaround. I'm from a mechanical background and am concerned with the logic I have used as this value seems quite large.
Wondering if I could get some feedback on this logic.
Cheers,
G.