could you test how much power each cord is pulling on normal and turbo mode?
Ive heard from someone whos contacted Bitmain about this that the PSU splits the load equally between the two cords. So it should be, based on his reported numbers, 1025 watts per cord in normal mode and 1250 watts in Turbo.
I have the 53 TH/s model and my metered PDUs, which only measure in amps, are showing ~11 amps total in normal mode on 208v power at 53-54TH. They also only show whole numbers and sometimes round up, so its not super accurate. That would put me at around 2288 watts or 1144 watts per cord.