I've pressed the owner/well installer for more info particularly if the motor will run at 208V. The well installer insists that #6 will suffice however I'm questioning the effectiveness of the motor with that line loss.

As a contingency plan I do like the Buck & Boost transformer option. Assuming the voltage is around 208 by the time it gets to the panel, and the motor takes 240V which transformer is the best choice? Also, can someone explain the Power Rating and what it means.

Thanks,
Byron