fault current from inverter-based sources (vs 5-10x for synchronous machines) — breaks conventional overcurrent grading
~1.2–1.5xobserved
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| As of | 2025 |
| Source | U.S. Department of Energy OSTI, Inverter-Based DG Impacts on Protection · Page 3, “Inverter Short-Circuit Models” |
| Review | checking…review by 2026-10-25 · standard cadence |
| Recorded changes | last 2026-07-14 · 2 revisions tracked |
| Claim id | fault-current-from-inverter-based-sources-vs-5 |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.