In power distribution systems, three-phase transformer configuration directly impacts system reliability and load management.

Art. 450 begins with the short and to-the-point statement, “This article covers the installation of all transformers,” and then lists eight exceptions. In essence, Art. 450 covers power transformers, ...

Historically, typical loads of commercial power systems have been predominately linear; however, in the last few decades, a significant portion of these loads has changed to the nonlinear variety. One ...