Customer has a 150kva transformer 200a 480v primary to 240v secondary to 200a fused disconnect. They currently tap the primary side of XFMR for any 480v equipment in area and the same for secondary. I have never seen anyone do this so I am not sure if this permitted. I am not sure other than cost why they would do this but I want to recommend panel before and after transformer so they can utilize the XFMR input and output.