Single phase 15kva step-up transformer, wheres neutral?

[bdgWesternMass]

Hey All,

I didn't know where to post this question. I'm adding single phase transformer to step up 240 to 480 Volts. I'm trying to figure out what to do with the neutrals.

Should I wire them together and just pass it to the diconnect's neutral?

Thanks for the ideas.

Ben