Overview
Stringing defines the positive (+) and negative (-) cable connections between modules. In PVX.AI it is preset-driven: you build a reusable stringing preset, then apply it to racks.
Prerequisites
The layout plan must be complete with racks placed.
Step-by-Step Guide
1. Open the Electrical Design window
Click the Electrical Design group button on the PVX.AI ribbon to open the Electrical sub-tab, then click Electrical Design. Stringing is step 1 of the five-step flow.
2. Create a preset and pick the type
If you have no presets yet, click Create Preset to open the Stringing Setup window. Choose the Stringing Type: Single Row, U-Stringing (best for small single-row tables), Leap Frog (a zigzag suited to longer tables), or Custom.
3. Set direction and electrical data
Set the Direction, Left to Right or Right to Left, toward the transformer side. Enter the module parameters (Vmpp, Voc, Impp, Power) and the system parameters (Max System Voltage, default 1500 V, and Inverter Vmax, default 1100 V). PVX.AI shows the string size and its valid range live.
4. Save the preset
Pick the Application Mode (Single Rack, String Area, or String Frames) and click Save as Preset. Each preset remembers the rack spec it applies to. Create from Frame derives one from a rack that is already strung.
5. Apply it
Select the preset, then use Apply to Boundary to string every matching rack inside a PV Area boundary, or Apply to Selection for selected racks.
6. Edit if needed
Destring deletes selected strings, Mirror Strings reverses the direction, and Reverse Polarity swaps the plus and minus ends.
Tips & Recommendations
- Set the direction toward the transformer or inverter side to keep cable runs short.
- Watch the live valid range so the string stays inside the inverter voltage window.
- Every PV area is an independent electrical unit, so a multi-area site can be strung area by area.