"Cable sizing" project page
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On the Cable sizing project page, you can have the power loss of the selected cable sizing calculated.
Settings in the Overview area:
If a subdistribution is required in the PV system, enable the checkbox Project subdistribution available (LV3). The Graphic section is adjusted and the AC2 cables tab is added.
If an MV transformer is to be present in the PV system, enable the checkbox Medium-voltage line and MV transformer available (MV). The Graphic section is adjusted and the MV transformer tab is added.
Configuration area:
The graphic in the Configuration area shows the cable identification in the planned PV system:
DC indicates the cables from the first PV module in the string to the inverter.
LV1 indicates the cables from the inverter to a possible subdistribution, to the MV transformer or to the feed-in point.
LV2 indicates the cables from a possible subdistribution in the subproject to the subdistribution of the total project, to the MV transformer or the feed-in point.
LV3 indicates the lines from the possible subdistributions to the possible MV transformer or to the feed-in point.
MV indicates the cables from a possible MV transformer to the feed-in point.
Settings in the tabs Cables DC, Cables LV1, Cables LV2, Cables LV3, Cables MV:
Procedure:
- To take account of the line losses in the yield forecast, click on Enter project data in the main menu navigation. Go to Advanced project data > Line losses, click on the [Edit] button and enable the checkbox DC or AC.
- Click on the tab of the desired cable.
- Select the required fields in the Cable material, Single length and Cross-section columns and make the required settings. The values for Current, Voltage, Voltage drop and Rel. power loss are calculated automatically.