Summary
This document is a technical report that presents a comparison of short-circuit results obtained from ETAP software against hand calculations based on application engineering information. The report outlines the methodology used for the comparison, which includes analyzing a typical industrial system consisting of 5 MVA transformers, reactors, cables, and induction motors. The utility rating for the system is specified as 250 MVAsc with an X/R ratio of 15. The report details the momentary and interrupting duty calculations for various fault scenarios, including a fault at Bus #5. It provides specific comparison results, showing the differences between ETAP results and those published in a General Electric document, with a maximum deviation of about 0.01%. The report includes tables that summarize the findings, including symmetrical current, X/R ratios, and voltage contributions from different buses, ensuring a comprehensive understanding of the short-circuit analysis conducted.
