Most petrochemical industrial facilities have numerous small (30kVA or 45kVA) transformers spread throughout the process units serving lighting and power distribution panelboards. In the U.S., the ...

In many electrical installations, general-purpose contactors are used to switch the supply voltage to a small dry-type transformer on and off. One common reason this is done is for area lighting ...

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 ...

AutomationDirect’s line of power products now includes Acme Electric’s dry-type encapsulated 3-phase transformers. The NEMA 3R transformers are excellent for dust or lint-laden atmospheres and are ...

In this paper, the authors develop a program for the design of transformer using Matlab. The proposed methodology has many advantages for transformer manufacturers, since they can save design ...