I work at a company that sells chargers for electric vehicles and I'm working on the electrical projects.

The chargers I work with, are alternating current (AC) and the main mode here is a three-phase installation 220 V, at 7.04 kW with a current of 32 amps.

If the system only had three chargers (Q01, Q02, Q03), the current for each would be 32 amps.

Using a simulator, when adding the fourth charger(Q4), the current goes to 84 amps and I wanted to understand why.

I tried to draw the three-phase circuit to make an equivalence of loads, but I couldn't get to that value.

Does an electric car behave like a delta or star load?