ABB’s scope of supply for the orders received includes a 700 megavolt-ampere (MVA), 345 kilovolt (kV) power transformer, two 100 MVA, 141 kV power transformers and three 500 kV single phase units. The ...

Fig. 1 shows a transformer in a Wye configuration. A three-phase Delta is a 240 VAC feed with one phase center-tapped as shown in Fig. 2 to provide two 120 VAC feeds and neutral for single-phase loads ...

While working at a sewage treatment facility, I ran across an interesting situation with a 30kVA transformer. I had bid on a replacement generator job and was given a set of drawings to work from ...