737NG TR1 and TR2
 

Hi guys,

A pretty basic question from me this time:
During flight, do TR1 and TR2 carry the same amount of amps, or do they differ? I can't put my head around the FCOM 100%

And, as a little side question: Does the GND PWR setting on the Electric Panel have an Amp rating or not?

Thanks for taking the time to answer!

Tr1 and Tr2 more or less the same, Tr3 half of them.

You can see the Amp of the GND PWR directly on the GPU panel, not in the plane.

TR1,TR2 and TR3 provide a continuous output load of 75 Amps (normal)with forced cooling or 50 amps with convective cooling.

The overhead panel only displays DC voltage and output frequency for the Ground power,same for Stby power and inverter.

I probably misread the question, my understanding was about how many amps do they normally deliver during flight, not the maximum.

You were right FB, I was interested in the normal loads, not the max loads.
Although the max loads are interesting as well.
Thanks guys!

Normal loads in amps are half on TR3 as for the other two, TR3 powering the bat bus only rather than bus 1 and bus 2 for TR1 and TR 2 respectively.

Thanks FB, I have never thought of looking at the GPU.

Thanks guys, this really was helpful!