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 ...

In the original version of this article, the second figure contained an error. The image has been updated. It’s important for engineers to have a good, working ...

When alternating current (AC) prevailed over direct current (DC) in the late 1800s, one of the deciding factors was the need for voltage levels to be raised and lowered throughout the power system to ...

Linemen from North Carolina municipals practice three-phase transformer banking using the new Load-Trainer II Transformer Simulators. When apprentice linemen step out into the line trade, utilities ...