AYAD Posted January 11, 2023 Share Posted January 11, 2023 Hi, I'would like to know how to calculate the cable section in DC Area ? Thank you Link to comment Share on other sites More sharing options...
Lazare Fesnien Posted January 11, 2023 Share Posted January 11, 2023 Dear Ayad, The ohmic resistance of the wiring circuit induces losses ( ELoss = Rw · I² ) between the power available from the modules and the power at the terminals of the sub-array. The relevant parameter for the simulation is the Rw value, which is an equivalent resistance of the wires, as "seen" from the input of the global sub-array (i.e. the set of MPPT inputs defined in this sub-array). You should define one Rw value for each sub-array in your system. A PVsyst tool allows you to easily calculate this information in "Detailed Losses" then "Ohmic Losses" then "Detailed Computation" Regards, Link to comment Share on other sites More sharing options...
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