In my situation three single phase transformers are connected or bridged to get the voltages. The diagram you have provided me with is a Delta wye with the delta being the primary side. The situation im dealing with has a wye side and a delta secondary side
This is a diagram of what i mean. When i was working in the field I seen this, I was just unsure on why the voltages were 120v, 120v, 240v. http://files.engineering.com/getfile.aspx?folder=b9d4e9b1-8058-469d-b0be-91765d888a42&file=240_delta_with_crosses_primary.jpg
If one of the primary fuses were blown on the high side of the transformer, you would get a 210v, 210v, 0v phase to phase. The delta bank im refering to is a three-wire secondary. The question im asking is why would you get 120v 120v, 240v on the secondary side if the red and white phase were at...
On a three phase delta 240v bank consisting of 3 single phase transformers, I am getting a phase to phase voltage of 120v,120v,240v. The problem is a crossed primary supply with two phases at the same potential. Can anyone explain to me how this works. Thank you
