Can you hook a wind turbine up that is 240V split Phase to a 3 phase industrial grid connection? If you could, would you have to re-wire the turbine?

Thank you

No the generator does not need to be rewired. Only to two hots of a split phase will be needed to be connected to the grid, not the neutral.

Consult with your local power company for any rules, regulations, and equipment for connection to the grid to sell back any surplus power.