Inverter AC cable sizing workflow
How to prepare inverter current, phase, route length and cable data before using the Australian inverter AC cable voltage-drop calculator.
Cable workflow purpose
An inverter AC run often needs a clear voltage-rise record before a cable schedule, quote or DNSP discussion is updated. The calculator can show the voltage change from entered current, phase, route length and cable data.
It should not be treated as final cable selection.
Workflow
- Identify the inverter AC run reference and point of connection being reviewed.
- Record inverter current, kVA or kW basis and phase arrangement.
- Measure the one-way cable route length.
- Enter sourced cable voltage-drop data or resistance values.
- Compare the voltage-change result with the project target entered by the reviewer.
Record table
| Field | Record | Review concern |
|---|---|---|
| Run reference | Inverter, switchboard and drawing label | Prevents mixing results between runs |
| Current basis | Inverter data, schedule or kVA/kW conversion | Current drives voltage change |
| Cable data source | Project cable data or product source | Do not invent cable values |
| Direction | Export rise or load drop | Interpretation changes with direction |
| Project target | Entered review value | Not a universal limit from the page |
Boundaries
- Do not treat voltage-rise arithmetic as DNSP acceptance.
- Do not hide the cable-data source.
- Do not use a DC string voltage page for AC cable review.
- Do not skip current-carrying capacity and protection review.