Wiring Validation Tool
Compare phase voltages across main and tenant meters to detect wiring errors
How it works: This tool compares the per-phase voltage readings from the main (incomer) meter against each tenant meter at a site. Phase swaps occur when L1/L2/L3 wires are connected to the wrong terminals during installation.
Detection methods: Phase Swap — meter L1 voltage matches reference L2/L3 (wires crossed). Missing Phase — voltage near zero on one or more phases. Voltage Mismatch — voltage differs by >10V from reference (possible loose connection or CT ratio issue).
Select a site to begin validation
Choose a site from the dropdown above to compare phase voltages across all registered meters and detect potential wiring issues.