Short Circuit Analysis and Fault Current Calculations

Arc Flash Duration Defined by Clearing Time of Upstream Protective Device One of the main variables that is part of an arc flash study is the arcing short circuit current. However, going back through the evolution of arc flash calculations,…

History of Arcing Short Circuit Calculations – 1980’s to Now: One of the main variables used for incident energy and arc flash boundary calculations is the arcing short circuit current. How the arcing current is calculated has gone through an evolution beginning back in the 1980’s up through today. The…

125 kVA – Going, going, gone! After much speculation about the fate of the 125 kVA transformer “exception”, the 2018 Edition of IEEE 1584 – IEEE Guide for Performing Arc-Flash Hazard Calculations has finally been published and made it official.