Short circuit calculation softwares are very expensive and very difficult to use. Seldom do you find a software in this category which is very user friendly. In my searching, I found a free short circuit calculation software at the Mine Safety and Health Administration website. This short circuit calculation software is based on North American standards.
The program has a graphic interface and very easy to use. I have capture the main program window.
The result of the calculated short circuit current will be displayed in another window.
The program has been created by Wayne L. Carey
In addition to the software an accompanying Short circuit calculation handbook could also be found on the same website. The handbook was also prepared by the author Wayne L. Carey.
The software together with the handbook could be downloaded here.