Short-Circuit Current (IEC 61363)
Peak and RMS symmetrical short-circuit currents on a shipboard bus - IEC 61363-1 approach for switchgear sizing.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Base current = MVA/(√3·V) | A | |
| Sub-transient reactance pu | pu | |
| Peak factor | ||
| RMS symmetrical SC | A | |
| Peak SC | A |
Source: IEC 61363-1 - Short-circuit calculation for shipboard installations
In short
Peak and RMS symmetrical short-circuit currents on a shipboard bus - IEC 61363-1 approach for switchgear sizing.