Cable calculation

Hello there, I am looking for an experienced professional to calculate the cable requirements for a low voltage (up to 1kV) system that I am designing. Specifically, I need to know the requirements for power cables. This project is not about troubleshooting or improving an existing system, but instead creating a brand new one. I need the calculations done as quickly and accurately as possible. Thanks!



We are running a new suppply for a large machine, and would like confirmation on cable size