ECN Forum Forums General Topics of the Trade General Discussion Area strange 45 klva 480/208 primary overcurrent occure

lastly, it does have taps but no guide.I was looking at the delta transfromer which also has taps but since the input voltage is greater that 468 (which was the 5% MARK) (V a-b 480, b-c 473, a-c 473), I did not venture into changing the taps on the wye transformer, I assumed that tap 4 would be for 468 input voltage and currently the transfromer it is set up for 100%(tap 3). I did not know how adversely changing thios to tap 4 would be for the output voltages. I figured that all the 240v would run fine down to 208 which is why I went high leg delta.