Bug/possible improvement in calculations

[VicentEWI]

Hi everyone

I have found a problem in EcoStruxure. I have loads originating in the busbar of a secondary panel. I have calculated a Ks = 0.6. Therefore, to calculate the conductor section, the current for calculation must be lb ·0.6.

But EcoStruxure calculates the line to deliver all the power of the transformer in the busbar circuit. This causes sections in the line that are larger than necessary and short-circuit currents that are higher than they should be. (case 2).

It only calculates the line section correctly when it is allowed to choose the power of the transformer. (case 1).

But in many cases, the calculations assume that I already have a transformer installed.

How can I tell it, for example, that I have a 630 kVA transformer but a subpanel that only consumes 120 kW, without assuming that all the power is delivered in the subpanel?

Thanks in advance

[Manon_Chaboud]

Hello @VicentEWI, thank you for your post, we'll come back to you!