According to the data on fast charging of electric vehicles, a charging station is generally configured to charge 8 electric vehicles simultaneously.

Plan A: Design a distribution station with 2 incoming 10KV cables (equipped with 3 * 70mm cables), 2 500KVA transformers, and 10 outgoing 380V cables (equipped with 4 * 120mm cables, 50M long, 10 circuits).
Plan B: Design 2 10kV cable lines (with 3 * 70mm cables) and install 2 500KVA user box transformers. Each box transformer is equipped with 4 380V output lines for the charging station (with 4 * 120mm cables, 50M long, 8 circuits).