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PCIC Conference – ANSI vs. IEC Short Calculations and Arc Flash Studies
The 65th Annual IEEE-PCIC Conference will be held this year in Cincinnati, Ohio on September 24-26. This year I will have both my “IEEE hat” and “IEC hat” on and […]
Tag: Short Circuit
Short Circuit Calculations with Transformer and Source Impedance
Short Circuit Calculations – Transformer and Source Impedance An infinite bus transformer short circuit calculation can be used to determine the maximum short circuit current on the secondary side of […]
Utility Short Circuit Data – Different Formats
National Electrical Code 110.9 Interrupting Ratings states that: Equipment intended to interrupt current at fault levels shall have an interrupting rating at nominal circuit voltage at least equal to the current that […]
New to Arc Flash, Short Circuit and Coordination studies
Hi. I currently work as an Engineer in the energy management field. I would like to branch off in to doing Arc Flash, Short Circuit and Coordination Studies. How would […]
Short Circuit Calculations and Conduit Material
I recently came across a previous study that was completed for a facility that assumed a specific type of conduit [non-metallic/magnetic; PVC] vs what was actually installed [Rigid Meal Conduit], […]
Utility Short Circuit Current Data, Arc Flash and Change
Webinar – Utility Short Circuit Current Data, Arc Flash Studies and Change by Jim Phillips, P.E. [See more about Jim Phillips] It goes up, it goes down, sometimes it is […]
Using Correct Electric Utility Data for an Arc Flash Study
One of the first steps in performing an arc flash calculation study is to request short-circuit data from the electric utility company. This kind of request is pretty routine, and […]
