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The process of cabling starts by designing the trenchlines. We recommend designing all of them at layer 0, later, this makes it easier to select all of them at once isolating the layer. After finishing with the trenchlines, just proceed with the selection of the PV area:

Whenever a change is made on the trench lines, remember to select them again. This way, we avoid having any further problems with the cabling.

Before choosing the cabling generation type you would need to choose one of two Cable stickiness to the trenche types:

The next step is the cabling generation itself, which can be done using the Auto or Semi-auto modes. The Auto DC/AC cabling mode will just ask to select the Central Inverter/ Transformer and PVcase will make all the connections:

The semi-auto mode permits a higher level of customization. The semi-auto mode allows the selection of individual strings or devices and allows you to specify in more detail the route of the cable. What ultimately forces the software to design the cabling according to the trench lines that are being selected and not the software estimating which ones to use from a handful of selected trenchlines:

Going back to the Overview tab, we can now select the cables of each device. This feature comes in handy to execute an initial assessment of cable lengths:

For a more detailed exploration, we recommend exporting the Bill of Materials. In the Excel environment, we can identify cable sections that may be longer than a previously established value by using Conditional Formating:

In the example above, we have found several strings that had a cable length greater than 80 meters. Based on that, it's possible to go back to the design to identify the route done by those cables and optimize them if needed.

The cables that bridge motor gaps or several tables (in case modules of different tables are connected in the same string), will appear as Extension cables.

PVcase also has the option to create HV cabling runs from inverters & transformers to the grid connection point at substations. Per European standards, these systems are referred to as High Voltage. HV Cabling can be generated at any point of the designing process - even without layout and topography.

To connect the transformer to the substation, one should select what kind of HV run you would want to implement: plain HV cabling or Ring HV cabling.

Upon clicking on the HV cabling button, you will be prompted to select the "Grid connection" i.e. switchgear, and press Space or Enter to continue. Then you should select the transformers you want to connect to the grid connection" i.e. switchgear. To finalize the process, press Space or Enter on the keyboard, and the drawing should now have HV cable runs. This process can be seen below:

Note: modifying a completed "Grid connection" would require starting over. It is not possible to modify a "Grid connection". If you want to make several "Grid connections" to the same substation, add blocks, and switch gears, into your substation block.

Upon clicking on the Ring HV cabling button, you will be prompted to select the "Grid connection" substation, and press Space or Enter to continue. Then you should select the transformers you want to connect to the "Grid connection" substation. To finalize the process, press Space or Enter on the keyboard, and the drawing should now have HV cable runs. To showcase how the connections were made, you can press on one of the HV cables and use the select similar function. If you want to make some adjustments, you can do it by moving the cable runs manually. This process can be seen below:

Note: if you want to regenerate HV cabling, you need to first remove it and then generate it again.