I have a small single phase dry type transformer. 52 FLA, 480/220V, 2.3 %Z, 1.13 X/R..
Anyone who uses ETAP knows that when finding short circuit duty, it only works on 3 phase systems. So, I plan on making my transformer a 3 phase unit and just fault it phase to phase to see the equilvilent...
Well, when your a coop, theres not much useful work that they give you. Thank you DPC for all the help. maybe in a year and I work out here full time things will be different, but until then this is all I have. That's actually what I have been using, there were three lighting panals and a...
I know how to PROPERLY protect a transformer, the proplem is this particular transforer was FAR from any ANSI, NEC, IEEE standards or recomendations. Basically I would like to know how these old fuses compare to newer ones, so I can substitute them into ETAP. any fuse that Ferraz, bussman, or...
I am currently using ETAP, and I'm trying to simulate what might have caused the fire. My thinking is that the fire in the transformer could have been avoided if it had the proper protection on the primary and the secondary side. It is clear that it is already overfused, but I was wondering what...
I am dealing with some very old fuses in some 220V lighting panels. All I can read on the in Trico renewable fuses. CM-5. and thats about it. I am doing a load study because a very small dry type transformer burned up and we think it is because it was over fused, (more than 250% on the primary...
