Electromagnetic compatibility (EMC) is the study of coordinating electromagnetic fields give off equipment, with the withstand (compatibility) of other...

Many questions sent in to the site are in connection with motor starting and in particular star-delta.  For all but the simplest application, there is...

A load flow study is the analysis of an electrical network carried out by an electrical engineer. The purpose is to understand how power flows around...

In a previous article I looked at the dc resistance of conductors and in this article we turn our attention to ac resistance. If you have not read the...

We've been sending out Newsletters on a regular basis for a few weeks now. To do this we have been using Google's Feedburner service. While Feedburner...

The other day I came across an article in Technology Review on the development of a smart transformer. A professor at North Carolina State University is...

Electrical engineering has a multitude of laws and theorems. It is fair to say the Ohm's Law is one of the more widely known; it not the most known. Developed...

Various techniques exist to enable the correct selection of batteries for UPS applications.  The procedure described below is one of the more common. ...

Collection of links to various places with useful motor information. I’ll try and return to the page every now and again to update it with any motor notes...

This is the second post in a series of two on periodic electrical inspections. In the first post, I discussed how often inspections should be carried out...