Prospective (bolted, symmetrical) fault current and approximate peak asymmetrical fault current at a transformer secondary, and a quick check against downstream OCPD AIC and equipment SCCR ratings.
Transformer %Z fault current method; NEC 110.9/110.10 interrupting/withstand rating verification
Generated
For preliminary engineering use only — always verify results against project-specific standards and a qualified engineer's review before use in a real design.