Short-circuit studies are foundational to designing protection systems in industrial and utility-grade networks. These calculations determine the maximum fault current a system might experience and define the interrupting capacity for breakers, fuses, and protective relays.
OXCART engineers perform IEC 60909-based short-circuit calculations using software tools like ETAP and DIgSILENT PowerFactory. The results guide the selection of cable sizes, protection settings, and arc-flash boundaries.
This blog walks you through fault types (three-phase, line-to-line, single line-to-ground), calculation steps, and how these figures directly influence selectivity and discrimination schemes. Ignoring these studies can lead to undersized equipment and potential safety hazards.
