The article in the March 3 issue of The News dealt with the secondary windings of a Delta service transformer with one winding center-tapped to the ground. The article stated that the power-leg or ...

Many older industrial facilities use single-phase, oil-filled transformers made for pole-mounting but installed at ground level to create 3-phase power distribution systems. Usually, primary and ...

Wye or “star” service transformers are one and the same. The names come from the secondary winding configuration, which looks like a “Y” or three-sided star (Figure 1). For the remainder of this ...