Step down transformer question

[254central/texas]

If I have 3 phase 277 going to a small shack 277 each leg ( 2 hots and a ground only equaling 480 ) and it is going to feed a step down transformer for small 120 / 240 single phase panel. Will this transformer work it is 10 kva single phase 480 v or 240 v primary and 120/240 secondary 480 on lines H1-H4 Connect H2H3 Secondary v on lines 240 X1-X4 Connect X2X3 240 on lines H1-H4 Connect H1H3,H2H4 120 X11-X4 Connect X1X3 , X2X4 120/240 X11-X3-X4 Connect X2X3

The one we have is Square D CAT.NO.: 10S1F

 

[drcampbell]

Is your small shack's consumption close to 10 kVA? Lightly loaded transformers waste a lot of energy.

 

[iceworm]

If I have 3 phase 277 going to a small shack 277 each leg ( 2 hots and a ground only equaling 480 ) and it is going to feed a step down transformer for small 120 / 240 single phase panel. Will this transformer work it is 10 kva single phase 480 v or 240 v primary and 120/240 secondary

Yes, it will work fine.
Don't forget:
Secondary grounding and bonding,
Load calc so you know the loads are with in the 10KVA
Primary and secondary overcurrent.