This is the link of the excel sheet- D.F factor of Equipment-
http://electrical-engineering-portal.com/download-center/electrical-software/calculation-of-size-of-transformer-fuse-and-circuit-breaker#comment-12292
I have seen an excel sheet in calculator to calculate the size of transformer.
There are option to put the vales of Kw,PF,Qty and Equipment D.F.
I could not understand what is D.F.
What is the equation to calculate the D.F and equation to calculate the total load D.F?