Eaton 2017
Different Power Source Behavior and Effect on the Power Distribution
Treat the UPS in inverter mode as a current-limited source in the short-circuit engine, with catalogue fields inverterIscMultiple, inverterIscDuration_ms, bypassIcw and maxProspectiveFaultAtBypass.
- A pre-arcing I2t ratio of 1.6:1 or more between same-type fuses typically gives selectivity.