Yep. The air transport industry is very very change (read: risk) averse.
The current APUs (except for 787) have traditionally supplied power at 28 VDC and 115 VAC due to the worries about high voltage arcs. They would rather have more current over more copper than higher voltage.
I suspect they have added significant wiring and electronics to this A320 to get this to work. I haven't been able to find out if this aircraft has even flown with this rigging much less gone through certification.
I bet they could slightly improve this system and get rid of reversers as well (active braking).
That being said, I'd imagine ATC to be very wary of the current 130hp system: there is no way you could expedite a move across an active runway at almost 80,000kg MTOW.
The current APUs (except for 787) have traditionally supplied power at 28 VDC and 115 VAC due to the worries about high voltage arcs. They would rather have more current over more copper than higher voltage.
I suspect they have added significant wiring and electronics to this A320 to get this to work. I haven't been able to find out if this aircraft has even flown with this rigging much less gone through certification.
I bet they could slightly improve this system and get rid of reversers as well (active braking).
That being said, I'd imagine ATC to be very wary of the current 130hp system: there is no way you could expedite a move across an active runway at almost 80,000kg MTOW.